chore: release v0.1.0.71

Centralize UI language switches in cycleAppLanguage and document the event in plausible-events.md.

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

@@ -1,5 +1,9 @@
 OpenWeatherMapAPIKey=<owm_api_key>
 
+# DeepL API (for scripts/translate-locales.mjs and scripts/translate-flyer.mjs)
+# Free plan keys use api-free.deepl.com automatically (suffix :fx)
+DeepLAPIKey=
+
 # Passkey configuration (WebAuthn Relying Party ID and Origin)
 # For local dev: localhost and http://localhost
 # For production: e.g. kapteins-daagbok.eu and https://kapteins-daagbok.eu

VERSION

@@ -1 +1 @@
-0.1.0.59
+0.1.0.72

client/index.html

@@ -12,6 +12,9 @@
     <link rel="canonical" href="https://kapteins-daagbok.eu/" />
     <link rel="alternate" hreflang="de" href="https://kapteins-daagbok.eu/?lng=de" />
     <link rel="alternate" hreflang="en" href="https://kapteins-daagbok.eu/?lng=en" />
+    <link rel="alternate" hreflang="da" href="https://kapteins-daagbok.eu/?lng=da" />
+    <link rel="alternate" hreflang="sv" href="https://kapteins-daagbok.eu/?lng=sv" />
+    <link rel="alternate" hreflang="nb" href="https://kapteins-daagbok.eu/?lng=nb" />
     <link rel="alternate" hreflang="x-default" href="https://kapteins-daagbok.eu/" />
     <meta name="mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-capable" content="yes" />

client/nginx.conf

@@ -4,7 +4,7 @@ server {
     client_max_body_size 50M;
 
     # Service worker and app shell must revalidate so PWA updates are detected
-    location ~* ^/(sw\.js|workbox-.*\.js|manifest\.webmanifest)$ {
+    location ~* ^/(sw\.js|workbox-.*\.js|manifest\.webmanifest|version\.json)$ {
         root /usr/share/nginx/html;
         add_header Cache-Control "no-cache, no-store, must-revalidate";
     }

client/package.json

@@ -10,7 +10,12 @@
     "test": "vitest run",
     "preview": "vite preview",
     "generate:flyer": "node ../scripts/generate-beta-flyer.mjs",
-    "generate:flyer:setup": "playwright install chromium"
+    "generate:flyer:png": "node ../scripts/generate-beta-flyer.mjs --png",
+    "generate:flyer:all": "node ../scripts/generate-beta-flyer.mjs --all",
+    "generate:flyer:setup": "playwright install chromium",
+    "translate:locales": "node ../scripts/translate-locales.mjs",
+    "translate:flyer": "node ../scripts/translate-flyer.mjs",
+    "validate:i18n": "node ../scripts/validate-i18n-keys.mjs"
   },
   "dependencies": {
     "@simplewebauthn/browser": "^13.3.0",

client/src/App.css

@@ -1371,6 +1371,140 @@ html.scheme-dark .themed-select-option.is-selected {
   gap: 20px;
 }
 
+.dashboard-list-controls {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.dashboard-filter-bar {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.dashboard-sort-bar {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.dashboard-sort-label {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--app-text-muted);
+}
+
+.dashboard-sort-row {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  align-items: stretch;
+}
+
+.dashboard-sort-group {
+  display: flex;
+  flex: 0 0 auto;
+  gap: 6px;
+}
+
+.dashboard-sort-btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  border-radius: 8px;
+  border: 1px solid var(--app-border-subtle);
+  background: var(--app-surface-alt);
+  color: var(--app-text-muted);
+  cursor: pointer;
+  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
+}
+
+.dashboard-sort-btn:hover {
+  border-color: var(--app-border);
+  color: var(--app-text-heading);
+}
+
+.dashboard-sort-btn.is-active {
+  border-color: var(--app-accent-border);
+  background: var(--app-accent-bg);
+  color: var(--app-accent-light);
+}
+
+.dashboard-sort-btn:focus-visible {
+  outline: 2px solid var(--app-accent-focus-ring);
+  outline-offset: 2px;
+}
+
+.dashboard-filter-label {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--app-text-muted);
+  margin: 0;
+}
+
+.dashboard-filter-input-wrap {
+  position: relative;
+  display: flex;
+  align-items: center;
+  width: 100%;
+}
+
+.dashboard-filter-icon {
+  position: absolute;
+  left: 14px;
+  color: var(--app-text-muted);
+  pointer-events: none;
+  flex-shrink: 0;
+}
+
+.dashboard-filter-input {
+  width: 100%;
+  padding-left: 42px;
+  padding-right: 42px;
+  min-height: 44px;
+}
+
+.dashboard-filter-input::-webkit-search-cancel-button {
+  display: none;
+}
+
+.dashboard-filter-clear {
+  position: absolute;
+  right: 6px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  padding: 0;
+  border: none;
+  border-radius: 6px;
+  background: transparent;
+  color: var(--app-text-muted);
+  cursor: pointer;
+  transition: color 0.2s, background-color 0.2s;
+}
+
+.dashboard-filter-clear:hover {
+  color: var(--app-text-heading);
+  background: var(--app-accent-bg);
+}
+
+.dashboard-filter-clear:focus-visible {
+  outline: 2px solid var(--app-accent-focus-ring);
+  outline-offset: 2px;
+}
+
+.dashboard-filter-meta {
+  margin: 0;
+  font-size: 13px;
+  color: var(--app-text-muted);
+}
+
 .section-title-bar {
   display: flex;
   justify-content: space-between;
@@ -2322,6 +2456,37 @@ html.scheme-dark .themed-select-option.is-selected {
     word-break: break-word;
   }
 
+  .dashboard-sort-bar {
+    flex-direction: row;
+    align-items: center;
+    gap: 10px;
+  }
+
+  .dashboard-sort-label {
+    flex-shrink: 0;
+    min-width: 4.75rem;
+  }
+
+  .dashboard-sort-row {
+    flex: 1;
+    min-width: 0;
+    flex-wrap: nowrap;
+    gap: 12px;
+  }
+
+  .dashboard-sort-group {
+    flex: 1;
+    min-width: 0;
+    gap: 6px;
+  }
+
+  .dashboard-sort-btn {
+    flex: 1;
+    width: auto;
+    min-width: 44px;
+    height: 44px;
+  }
+
   .logbooks-grid {
     grid-template-columns: 1fr;
     gap: 16px;
@@ -3068,6 +3233,98 @@ html.theme-cupertino .events-scroll-container {
   }
 }
 
+.tank-liter-input .tank-liter-slider {
+  --tank-slider-track-h: 10px;
+  --tank-slider-thumb: 26px;
+  width: 100%;
+  height: var(--tank-slider-thumb);
+  margin: 10px 0 6px;
+  padding: 0;
+  -webkit-appearance: none;
+  appearance: none;
+  background: transparent;
+  accent-color: #4ade80;
+  cursor: pointer;
+  touch-action: none;
+}
+
+.tank-liter-input .tank-liter-slider::-webkit-slider-runnable-track {
+  height: var(--tank-slider-track-h);
+  border-radius: 999px;
+  background: rgba(148, 163, 184, 0.35);
+}
+
+.tank-liter-input .tank-liter-slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  width: var(--tank-slider-thumb);
+  height: var(--tank-slider-thumb);
+  margin-top: calc((var(--tank-slider-track-h) - var(--tank-slider-thumb)) / 2);
+  border-radius: 50%;
+  background: #4ade80;
+  border: 2px solid rgba(15, 23, 42, 0.85);
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
+}
+
+.tank-liter-input .tank-liter-slider::-moz-range-track {
+  height: var(--tank-slider-track-h);
+  border-radius: 999px;
+  background: rgba(148, 163, 184, 0.35);
+}
+
+.tank-liter-input .tank-liter-slider::-moz-range-thumb {
+  width: var(--tank-slider-thumb);
+  height: var(--tank-slider-thumb);
+  border-radius: 50%;
+  background: #4ade80;
+  border: 2px solid rgba(15, 23, 42, 0.85);
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
+}
+
+.tank-liter-input .tank-liter-slider:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.tank-liter-input .tank-liter-slider-hint {
+  font-size: 0.75rem;
+  color: #94a3b8;
+  margin-bottom: 6px;
+  text-align: center;
+}
+
+@media (max-width: 480px) {
+  .tank-liter-input .tank-liter-slider {
+    --tank-slider-track-h: 12px;
+    --tank-slider-thumb: 32px;
+    margin: 12px 0 8px;
+  }
+}
+
+.vessel-tanks-section {
+  grid-column: 1 / -1;
+  margin-top: 8px;
+  padding-top: 16px;
+  border-top: 1px solid rgba(148, 163, 184, 0.2);
+}
+
+.vessel-tanks-section h3 {
+  font-size: 1rem;
+  margin: 0 0 4px;
+  color: #e2e8f0;
+}
+
+.vessel-tanks-help {
+  font-size: 0.85rem;
+  color: #94a3b8;
+  margin: 0 0 12px;
+}
+
+.vessel-tanks-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
+  gap: 12px;
+}
+
 /* GPS Track Upload & Map Styling */
 .track-upload-zone {
   display: flex;
@@ -3540,6 +3797,59 @@ html.theme-cupertino .events-scroll-container {
   .stats-kpi-value {
     font-size: 20px;
   }
+
+  .profile-stats-section.form-card {
+    padding: 20px 16px;
+  }
+
+  .profile-stats-section .form-header {
+    margin-bottom: 12px;
+    gap: 10px;
+  }
+
+  .profile-stats-section .form-header h2 {
+    font-size: 18px;
+  }
+
+  .profile-stats-section .stats-subtitle {
+    font-size: 12px;
+    line-height: 1.35;
+  }
+
+  .profile-stats-kpi-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 8px;
+    margin-top: 0;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-card {
+    padding: 10px;
+    gap: 8px;
+    align-items: center;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-icon {
+    margin-top: 0;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-icon svg {
+    width: 16px;
+    height: 16px;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-label {
+    font-size: 11px;
+    margin-bottom: 2px;
+    line-height: 1.25;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-value {
+    font-size: 16px;
+  }
+
+  .profile-stats-kpi-grid .stats-kpi-unit {
+    font-size: 11px;
+  }
 }
 
 .signature-grid {

client/src/App.tsx

@@ -1,5 +1,4 @@
 import { useState, useEffect, useCallback, useRef } from 'react'
-import './App.css'
 import { DialogProvider } from './components/ModalDialog.tsx'
 import AuthOnboarding from './components/AuthOnboarding.tsx'
 import UserProfilePage from './components/UserProfilePage.tsx'
@@ -29,6 +28,7 @@ import {
   resolveColorScheme,
   subscribeToSystemColorScheme
 } from './services/appearance.js'
+import { syncAppearancePrefs } from './services/appearancePrefs.js'
 import { startBackgroundSync, stopBackgroundSync, syncAllLogbooks, subscribeToSyncState } from './services/sync.js'
 import ReadOnlyViewer from './components/ReadOnlyViewer.tsx'
 import DemoViewer from './components/DemoViewer.tsx'
@@ -45,6 +45,7 @@ import { Ship, LogOut, ChevronLeft, Users, FileText, Settings, Wifi, WifiOff, La
 import DisclaimerHeaderButton from './components/DisclaimerHeaderButton.tsx'
 import FeedbackHeaderButton from './components/FeedbackHeaderButton.tsx'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage } from './utils/i18nLanguages.js'
 import {
   resolveTourLogbookContext,
   seedDemoLogbookIfNeeded
@@ -151,6 +152,13 @@ function App() {
     })
   }, [])
 
+  useEffect(() => {
+    if (!isAuthenticated) return
+    const userId = localStorage.getItem('active_userid')
+    if (!userId) return
+    void syncAppearancePrefs(userId)
+  }, [isAuthenticated])
+
   useEffect(() => {
     const handleOnline = () => {
       setOnline(true)
@@ -489,8 +497,7 @@ function App() {
   }
 
   const toggleLanguage = () => {
-    const nextLang = i18n.language.startsWith('de') ? 'en' : 'de'
-    i18n.changeLanguage(nextLang)
+    cycleAppLanguage(i18n)
   }
 
   const handleExitDemo = () => {

client/src/components/AuthOnboarding.tsx

@@ -1,5 +1,6 @@
 import React, { useState } from 'react'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage, getNextLanguage } from '../utils/i18nLanguages.js'
 import { 
   registerUser, 
   loginUser, 
@@ -209,8 +210,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
   }
 
   const toggleLanguage = () => {
-    const nextLang = i18n.language.startsWith('de') ? 'en' : 'de'
-    i18n.changeLanguage(nextLang)
+    cycleAppLanguage(i18n)
   }
 
   const copyToClipboard = () => {
@@ -379,16 +379,37 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
           {t('auth.recovery_fallback_warning')}
         </p>
 
-        <form onSubmit={handleRecoverySubmit} className="auth-form">
-          <textarea
-            className="input-textarea"
-            placeholder={t('auth.recovery_placeholder')}
-            value={recoveryInput}
-            onChange={(e) => setRecoveryInput(e.target.value)}
-            disabled={loading}
-            rows={3}
-            required
-          />
+        <form onSubmit={handleRecoverySubmit} className="auth-form" autoComplete="on">
+          {(username.trim() || encryptedPayloads?.username) && (
+            <input
+              type="text"
+              name="username"
+              autoComplete="username"
+              value={username.trim() || encryptedPayloads?.username || ''}
+              readOnly
+              tabIndex={-1}
+              aria-hidden="true"
+              style={{ position: 'absolute', width: 0, height: 0, opacity: 0, pointerEvents: 'none' }}
+            />
+          )}
+          <div className="input-group">
+            <label htmlFor="recovery-key" className="input-label" style={{ display: 'block', marginBottom: '8px', color: '#94a3b8' }}>
+              {t('auth.enter_recovery')}
+            </label>
+            <input
+              id="recovery-key"
+              name="recovery-key"
+              type="password"
+              className="input-text"
+              placeholder={t('auth.recovery_placeholder')}
+              value={recoveryInput}
+              onChange={(e) => setRecoveryInput(e.target.value)}
+              disabled={loading}
+              required
+              autoComplete="current-password"
+              style={{ width: '100%', padding: '12px', boxSizing: 'border-box' }}
+            />
+          </div>
 
           {error && <div className="auth-error">{error}</div>}
 
@@ -575,7 +596,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
       <div className="auth-footer">
         <button type="button" className="btn-icon-text" onClick={toggleLanguage}>
           <Languages size={18} />
-          {i18n.language.startsWith('de') ? 'English' : 'Deutsch'}
+          {t(`languages.${getNextLanguage(i18n.language)}`)}
         </button>
         <button
           type="button"

client/src/components/DemoViewer.tsx

@@ -1,5 +1,6 @@
 import { useState, useEffect } from 'react'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage, getNextLanguage } from '../utils/i18nLanguages.js'
 import VesselForm from './VesselForm.tsx'
 import CrewForm from './CrewForm.tsx'
 import LogEntriesList from './LogEntriesList.tsx'
@@ -31,7 +32,9 @@ export default function DemoViewer({ onExit }: DemoViewerProps) {
     registerNavigation({
       setActiveTab,
       setSelectedEntryId: setTourSelectedEntryId,
-      setFeedbackOpen: () => {}
+      setFeedbackOpen: () => {},
+      setLogbookActive: () => {},
+      setProfileOpen: () => {}
     })
     registerDemoTourContext({ firstEntryId: fixture.firstEntryId })
 
@@ -46,8 +49,7 @@ export default function DemoViewer({ onExit }: DemoViewerProps) {
   }, [registerNavigation, registerDemoTourContext, startTour, fixture.firstEntryId])
 
   const toggleLanguage = () => {
-    const nextLang = i18n.language.startsWith('de') ? 'en' : 'de'
-    i18n.changeLanguage(nextLang)
+    cycleAppLanguage(i18n)
   }
 
   const { title, yacht, crews, entries, gpsTracks, photos, firstEntryId } = fixture
@@ -85,7 +87,7 @@ export default function DemoViewer({ onExit }: DemoViewerProps) {
           </button>
           <button className="btn secondary" onClick={toggleLanguage} style={{ width: 'auto', padding: '6px 12px', fontSize: '13px' }}>
             <Globe size={14} style={{ marginRight: '4px' }} />
-            {i18n.language.startsWith('de') ? 'English' : 'Deutsch'}
+            {t(`languages.${getNextLanguage(i18n.language)}`)}
           </button>
         </div>
       </header>

client/src/components/FeedbackModal.tsx

@@ -172,6 +172,7 @@ export default function FeedbackModal({
                     <option value="general">{t('feedback.category_general')}</option>
                     <option value="bug">{t('feedback.category_bug')}</option>
                     <option value="feature">{t('feedback.category_feature')}</option>
+                    <option value="translation">{t('feedback.category_translation')}</option>
                   </select>
                 </label>
 

client/src/components/InvitationAcceptance.tsx

@@ -1,5 +1,6 @@
 import React, { useState, useEffect, useCallback, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage, getNextLanguage } from '../utils/i18nLanguages.js'
 import { Ship, LogIn, UserPlus, AlertTriangle, ShieldCheck, Languages, ArrowRight, KeyRound } from 'lucide-react'
 import {
   getActiveMasterKey,
@@ -308,7 +309,7 @@ export default function InvitationAcceptance({ onAccepted, onCancel }: Invitatio
   }
 
   const toggleLanguage = () => {
-    i18n.changeLanguage(i18n.language.startsWith('de') ? 'en' : 'de')
+    cycleAppLanguage(i18n)
   }
 
   if (recoveryPhrase) {
@@ -344,15 +345,36 @@ export default function InvitationAcceptance({ onAccepted, onCancel }: Invitatio
           <h2>{t('auth.enter_recovery')}</h2>
         </div>
         <p className="recovery-warning">{t('auth.recovery_fallback_warning')}</p>
-        <form onSubmit={handleRecoverySubmit}>
-          <textarea
-            className="input-text"
-            placeholder={t('auth.recovery_placeholder')}
-            value={recoveryInput}
-            onChange={(e) => setRecoveryInput(e.target.value)}
-            rows={3}
-            required
-          />
+        <form onSubmit={handleRecoverySubmit} autoComplete="on">
+          {(username.trim() || encryptedPayloads?.username) && (
+            <input
+              type="text"
+              name="username"
+              autoComplete="username"
+              value={username.trim() || encryptedPayloads?.username || ''}
+              readOnly
+              tabIndex={-1}
+              aria-hidden="true"
+              style={{ position: 'absolute', width: 0, height: 0, opacity: 0, pointerEvents: 'none' }}
+            />
+          )}
+          <div className="input-group">
+            <label htmlFor="invitation-recovery-key" className="input-label" style={{ display: 'block', marginBottom: '8px', color: '#94a3b8' }}>
+              {t('auth.enter_recovery')}
+            </label>
+            <input
+              id="invitation-recovery-key"
+              name="recovery-key"
+              type="password"
+              className="input-text"
+              placeholder={t('auth.recovery_placeholder')}
+              value={recoveryInput}
+              onChange={(e) => setRecoveryInput(e.target.value)}
+              required
+              autoComplete="current-password"
+              style={{ width: '100%', padding: '12px', boxSizing: 'border-box' }}
+            />
+          </div>
           <div className="auth-actions mt-4">
             <button type="button" className="btn secondary" onClick={() => setShowRecoveryFallback(false)}>
               {t('auth.back')}
@@ -490,7 +512,7 @@ export default function InvitationAcceptance({ onAccepted, onCancel }: Invitatio
       <div className="auth-footer" style={{ borderTop: '1px solid rgba(255,255,255,0.05)', paddingTop: '16px', marginTop: '24px' }}>
         <button className="btn-icon-text" onClick={toggleLanguage}>
           <Languages size={18} />
-          {i18n.language.startsWith('de') ? t('invitation.switch_language_en') : t('invitation.switch_language_de')}
+          {t(`languages.${getNextLanguage(i18n.language)}`)}
         </button>
       </div>
     </div>

client/src/components/LogEntriesList.tsx

@@ -241,14 +241,15 @@ export default function LogEntriesList({
 
       decryptedEntries.sort(compareTravelDaysChronological)
       const previousEntry = decryptedEntries.at(-1) ?? null
-      let { freshwater, fuel, departure } = carryOverFromPreviousDay(previousEntry)
+      let { freshwater, fuel, greywaterLevel, departure } = carryOverFromPreviousDay(previousEntry)
 
-      if (previousEntry && hasCarryOverFromPreviousDay({ freshwater, fuel, departure })) {
+      if (previousEntry && hasCarryOverFromPreviousDay({ freshwater, fuel, greywaterLevel, departure })) {
         const confirmed = await showConfirm(
           t('logs.carry_over_tanks_confirm', {
             departure: departure || '—',
             fw: formatTankLiters(freshwater.morning),
-            fuel: formatTankLiters(fuel.morning)
+            fuel: formatTankLiters(fuel.morning),
+            greywater: formatTankLiters(greywaterLevel)
           }),
           t('logs.carry_over_tanks_title'),
           t('logs.carry_over_tanks_yes'),
@@ -257,6 +258,7 @@ export default function LogEntriesList({
         if (!confirmed) {
           freshwater = emptyTankLevels()
           fuel = emptyTankLevels()
+          greywaterLevel = 0
           departure = ''
         }
       }
@@ -274,6 +276,7 @@ export default function LogEntriesList({
         destination: '',
         freshwater,
         fuel,
+        ...(greywaterLevel > 0 ? { greywater: { level: greywaterLevel } } : {}),
         signSkipper: '',
         signCrew: '',
         events: []

client/src/components/LogEntryEditor.tsx

@@ -42,6 +42,14 @@ import {
 import { computeTrackStats, formatTrackStats } from '../utils/trackStats.js'
 import { computeFuelPerMotorHour, formatFuelPerMotorHour } from '../utils/fuelStats.js'
 import { useRegisterUnsavedChanges } from '../context/UnsavedChangesContext.tsx'
+import TankLiterInput from './TankLiterInput.tsx'
+import {
+  computeEveningTankMaxLiters,
+  computeRefilledTankMaxLiters,
+  extractTankCapacitiesFromYacht,
+  formatTankLitersForInput,
+  type VesselTankCapacities
+} from '../utils/tankCapacity.js'
 
 function emptyTankLevels() {
   return { morning: 0, refilled: 0, evening: 0, consumption: 0 }
@@ -50,6 +58,7 @@ function emptyTankLevels() {
 function fingerprintFromStoredEntry(decrypted: Record<string, unknown>): string {
   const fw = (decrypted.freshwater as Record<string, number> | undefined) ?? emptyTankLevels()
   const fuel = (decrypted.fuel as Record<string, number> | undefined) ?? emptyTankLevels()
+  const gw = decrypted.greywater as { level?: number } | undefined
   const trackDistance = decrypted.trackDistanceNm
   const trackSpeedMax = decrypted.trackSpeedMaxKn
   const trackSpeedAvg = decrypted.trackSpeedAvgKn
@@ -72,6 +81,7 @@ function fingerprintFromStoredEntry(decrypted: Record<string, unknown>): string
       evening: fuel.evening || 0,
       consumption: fuel.consumption ?? 0
     },
+    greywater: gw ? { level: gw.level || 0 } : undefined,
     trackDistanceNm:
       trackDistance != null && trackDistance !== ''
         ? parseFloat(String(trackDistance))
@@ -145,6 +155,9 @@ export default function LogEntryEditor({
   const [fuelEvening, setFuelEvening] = useState('0')
   const [fuelConsumption, setFuelConsumption] = useState('0')
 
+  const [greywaterLevel, setGreywaterLevel] = useState('0')
+  const [tankCapacities, setTankCapacities] = useState<VesselTankCapacities>({})
+
   // Signatures
   const [signSkipper, setSignSkipper] = useState<SignatureValue | ''>('')
   const [signCrew, setSignCrew] = useState<SignatureValue | ''>('')
@@ -249,6 +262,7 @@ export default function LogEntryEditor({
         evening: parseFloat(fuelEvening) || 0,
         consumption: parseFloat(fuelConsumption) || 0
       },
+      greywater: { level: parseFloat(greywaterLevel) || 0 },
       trackDistanceNm: trackDistanceNm.trim() ? parseFloat(trackDistanceNm) : undefined,
       trackSpeedMaxKn: trackSpeedMaxKn.trim() ? parseFloat(trackSpeedMaxKn) : undefined,
       trackSpeedAvgKn: trackSpeedAvgKn.trim() ? parseFloat(trackSpeedAvgKn) : undefined,
@@ -259,6 +273,7 @@ export default function LogEntryEditor({
     date, dayOfTravel, departure, destination,
     fwMorning, fwRefilled, fwEvening, fwConsumption,
     fuelMorning, fuelRefilled, fuelEvening, fuelConsumption,
+    greywaterLevel,
     trackDistanceNm, trackSpeedMaxKn, trackSpeedAvgKn, motorHours,
     events
   ])
@@ -268,6 +283,38 @@ export default function LogEntryEditor({
     [fuelConsumption, motorHours]
   )
 
+  const tankCapacityTooltip = t('logs.tank_capacity_tooltip')
+
+  const fwRefilledMax = useMemo(
+    () => computeRefilledTankMaxLiters(fwMorning, tankCapacities.freshwaterCapacityL),
+    [fwMorning, tankCapacities.freshwaterCapacityL]
+  )
+
+  const fwEveningMax = useMemo(
+    () =>
+      computeEveningTankMaxLiters(
+        fwMorning,
+        fwRefilled,
+        tankCapacities.freshwaterCapacityL
+      ),
+    [fwMorning, fwRefilled, tankCapacities.freshwaterCapacityL]
+  )
+
+  const fuelRefilledMax = useMemo(
+    () => computeRefilledTankMaxLiters(fuelMorning, tankCapacities.fuelCapacityL),
+    [fuelMorning, tankCapacities.fuelCapacityL]
+  )
+
+  const fuelEveningMax = useMemo(
+    () =>
+      computeEveningTankMaxLiters(
+        fuelMorning,
+        fuelRefilled,
+        tankCapacities.fuelCapacityL
+      ),
+    [fuelMorning, fuelRefilled, tankCapacities.fuelCapacityL]
+  )
+
   const currentFingerprint = useMemo(() => {
     const payload = buildPayloadForSigning()
     return JSON.stringify({
@@ -527,11 +574,59 @@ export default function LogEntryEditor({
     setFuelConsumption(cons >= 0 ? String(cons) : '0')
   }, [fuelMorning, fuelRefilled, fuelEvening])
 
-  // Load Yacht Sails
+  const fwRefilledNoCapacity =
+    (tankCapacities.freshwaterCapacityL ?? 0) > 0 && fwRefilledMax == null
+  const fuelRefilledNoCapacity =
+    (tankCapacities.fuelCapacityL ?? 0) > 0 && fuelRefilledMax == null
+
   useEffect(() => {
-    async function loadYachtSails() {
-      if (readOnly && preloadedYacht?.sails) {
-        setYachtSails(preloadedYacht.sails)
+    const refilled = parseFloat(fwRefilled) || 0
+    if (fwRefilledMax == null) {
+      if (fwRefilledNoCapacity && refilled > 0) {
+        setFwRefilled(formatTankLitersForInput(0))
+      }
+      return
+    }
+    if (refilled > fwRefilledMax) {
+      setFwRefilled(formatTankLitersForInput(fwRefilledMax))
+    }
+  }, [fwRefilledMax, fwRefilled, fwRefilledNoCapacity])
+
+  useEffect(() => {
+    if (fwEveningMax == null) return
+    const evening = parseFloat(fwEvening) || 0
+    if (evening > fwEveningMax) {
+      setFwEvening(formatTankLitersForInput(fwEveningMax))
+    }
+  }, [fwEveningMax, fwEvening])
+
+  useEffect(() => {
+    const refilled = parseFloat(fuelRefilled) || 0
+    if (fuelRefilledMax == null) {
+      if (fuelRefilledNoCapacity && refilled > 0) {
+        setFuelRefilled(formatTankLitersForInput(0))
+      }
+      return
+    }
+    if (refilled > fuelRefilledMax) {
+      setFuelRefilled(formatTankLitersForInput(fuelRefilledMax))
+    }
+  }, [fuelRefilledMax, fuelRefilled, fuelRefilledNoCapacity])
+
+  useEffect(() => {
+    if (fuelEveningMax == null) return
+    const evening = parseFloat(fuelEvening) || 0
+    if (evening > fuelEveningMax) {
+      setFuelEvening(formatTankLitersForInput(fuelEveningMax))
+    }
+  }, [fuelEveningMax, fuelEvening])
+
+  // Load yacht sails and tank capacities
+  useEffect(() => {
+    async function loadYachtMeta() {
+      if (readOnly && preloadedYacht) {
+        if (preloadedYacht.sails) setYachtSails(preloadedYacht.sails)
+        setTankCapacities(extractTankCapacitiesFromYacht(preloadedYacht))
         return
       }
       try {
@@ -541,16 +636,19 @@ export default function LogEntryEditor({
         const yacht = await db.yachts.get(logbookId)
         if (yacht) {
           const decrypted = await decryptJson(yacht.encryptedData, yacht.iv, yacht.tag, masterKey)
-          if (decrypted && decrypted.sails && Array.isArray(decrypted.sails)) {
-            setYachtSails(decrypted.sails)
+          if (decrypted) {
+            if (decrypted.sails && Array.isArray(decrypted.sails)) {
+              setYachtSails(decrypted.sails)
+            }
+            setTankCapacities(extractTankCapacitiesFromYacht(decrypted))
           }
         }
       } catch (err) {
-        console.error('Failed to load yacht sails in editor:', err)
+        console.error('Failed to load yacht meta in editor:', err)
       }
     }
-    loadYachtSails()
-  }, [logbookId, preloadedYacht])
+    loadYachtMeta()
+  }, [logbookId, preloadedYacht, readOnly])
 
   // Load entry details
   useEffect(() => {
@@ -580,6 +678,11 @@ export default function LogEntryEditor({
             setFuelEvening(String(preloadedEntry.fuel.evening || 0))
             setFuelConsumption(String(preloadedEntry.fuel.consumption ?? 0))
           }
+          if (preloadedEntry.greywater) {
+            setGreywaterLevel(String(preloadedEntry.greywater.level || 0))
+          } else {
+            setGreywaterLevel('0')
+          }
 
           setSignSkipper(normalizeSignature(preloadedEntry.signSkipper) || '')
           setSignCrew(normalizeSignature(preloadedEntry.signCrew) || '')
@@ -613,6 +716,11 @@ export default function LogEntryEditor({
               setFuelEvening(String(decrypted.fuel.evening || 0))
               setFuelConsumption(String(decrypted.fuel.consumption ?? 0))
             }
+            if (decrypted.greywater) {
+              setGreywaterLevel(String(decrypted.greywater.level || 0))
+            } else {
+              setGreywaterLevel('0')
+            }
 
             setSignSkipper(normalizeSignature(decrypted.signSkipper) || '')
             setSignCrew(normalizeSignature(decrypted.signCrew) || '')
@@ -1210,41 +1318,35 @@ export default function LogEntryEditor({
               <h3>{t('logs.freshwater')}</h3>
             </div>
             <div className="consumption-grid">
+              <TankLiterInput
+                id="fw-morning"
+                label={t('logs.morning')}
+                value={fwMorning}
+                onChange={setFwMorning}
+                maxLiters={tankCapacities.freshwaterCapacityL}
+                disabled={saving || readOnly}
+                titleTooltip={tankCapacityTooltip}
+              />
+              <TankLiterInput
+                id="fw-refilled"
+                label={t('logs.refilled')}
+                value={fwRefilled}
+                onChange={setFwRefilled}
+                maxLiters={fwRefilledMax}
+                disabled={saving || readOnly || fwRefilledNoCapacity}
+                titleTooltip={tankCapacityTooltip}
+              />
+              <TankLiterInput
+                id="fw-evening"
+                label={t('logs.evening')}
+                value={fwEvening}
+                onChange={setFwEvening}
+                maxLiters={fwEveningMax}
+                disabled={saving || readOnly}
+                titleTooltip={tankCapacityTooltip}
+              />
               <div className="input-group">
-                <label>{t('logs.morning')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fwMorning}
-                  onChange={(e) => setFwMorning(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.refilled')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fwRefilled}
-                  onChange={(e) => setFwRefilled(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.evening')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fwEvening}
-                  onChange={(e) => setFwEvening(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.consumption')} (L)</label>
+                <label title={tankCapacityTooltip}>{t('logs.consumption')} (L)</label>
                 <input
                   type="number"
                   className="input-text consumption-value"
@@ -1252,6 +1354,7 @@ export default function LogEntryEditor({
                   readOnly
                   tabIndex={-1}
                   aria-readonly="true"
+                  title={tankCapacityTooltip}
                 />
               </div>
             </div>
@@ -1264,41 +1367,35 @@ export default function LogEntryEditor({
               <h3>{t('logs.fuel')}</h3>
             </div>
             <div className="consumption-grid">
+              <TankLiterInput
+                id="fuel-morning"
+                label={t('logs.morning')}
+                value={fuelMorning}
+                onChange={setFuelMorning}
+                maxLiters={tankCapacities.fuelCapacityL}
+                disabled={saving || readOnly}
+                titleTooltip={tankCapacityTooltip}
+              />
+              <TankLiterInput
+                id="fuel-refilled"
+                label={t('logs.refilled')}
+                value={fuelRefilled}
+                onChange={setFuelRefilled}
+                maxLiters={fuelRefilledMax}
+                disabled={saving || readOnly || fuelRefilledNoCapacity}
+                titleTooltip={tankCapacityTooltip}
+              />
+              <TankLiterInput
+                id="fuel-evening"
+                label={t('logs.evening')}
+                value={fuelEvening}
+                onChange={setFuelEvening}
+                maxLiters={fuelEveningMax}
+                disabled={saving || readOnly}
+                titleTooltip={tankCapacityTooltip}
+              />
               <div className="input-group">
-                <label>{t('logs.morning')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fuelMorning}
-                  onChange={(e) => setFuelMorning(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.refilled')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fuelRefilled}
-                  onChange={(e) => setFuelRefilled(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.evening')}</label>
-                <input
-                  type="number"
-                  className="input-text"
-                  value={fuelEvening}
-                  onChange={(e) => setFuelEvening(e.target.value)}
-                  disabled={saving || readOnly}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.consumption')} (L)</label>
+                <label title={tankCapacityTooltip}>{t('logs.consumption')} (L)</label>
                 <input
                   type="number"
                   className="input-text consumption-value"
@@ -1306,11 +1403,12 @@ export default function LogEntryEditor({
                   readOnly
                   tabIndex={-1}
                   aria-readonly="true"
+                  title={tankCapacityTooltip}
                 />
               </div>
 
               <div className="input-group">
-                <label>{t('logs.fuel_per_motor_hour')}</label>
+                <label title={tankCapacityTooltip}>{t('logs.fuel_per_motor_hour')}</label>
                 <input
                   type="text"
                   className="input-text consumption-value"
@@ -1322,10 +1420,30 @@ export default function LogEntryEditor({
                   readOnly
                   tabIndex={-1}
                   aria-readonly="true"
+                  title={tankCapacityTooltip}
                 />
               </div>
             </div>
           </div>
+
+          {/* Greywater card */}
+          <div className="form-card">
+            <div className="form-header">
+              <Compass size={20} className="form-icon" />
+              <h3>{t('logs.greywater')}</h3>
+            </div>
+            <div className="consumption-grid">
+              <TankLiterInput
+                id="greywater-level"
+                label={t('logs.greywater_level')}
+                value={greywaterLevel}
+                onChange={setGreywaterLevel}
+                maxLiters={tankCapacities.greywaterCapacityL}
+                disabled={saving || readOnly}
+                titleTooltip={tankCapacityTooltip}
+              />
+            </div>
+          </div>
         </div>
 
         {/* Section 3: Event Journal Entries */}

client/src/components/LogbookDashboard.tsx

@@ -1,5 +1,6 @@
-import React, { useState, useEffect, useRef } from 'react'
+import React, { useState, useEffect, useRef, useMemo } from 'react'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage } from '../utils/i18nLanguages.js'
 import { useSyncIndicator } from '../hooks/useSyncIndicator.js'
 import { fetchLogbooks, createLogbook, deleteLogbook, updateLogbookTitle, type DecryptedLogbook } from '../services/logbook.js'
 import LogbookRoleBadge from './LogbookRoleBadge.tsx'
@@ -7,7 +8,7 @@ import BetaBadge from './BetaBadge.tsx'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import { logoutUser } from '../services/auth.js'
 import { useDialog } from './ModalDialog.tsx'
-import { BookOpen, Plus, Trash2, LogOut, Languages, RefreshCw, Ship, User, Wifi, WifiOff } from 'lucide-react'
+import { BookOpen, Plus, Trash2, LogOut, Languages, RefreshCw, Ship, User, Wifi, WifiOff, Search, X, CalendarDays, CaseSensitive, ArrowUp, ArrowDown } from 'lucide-react'
 import DisclaimerHeaderButton from './DisclaimerHeaderButton.tsx'
 import FeedbackHeaderButton from './FeedbackHeaderButton.tsx'
 
@@ -17,6 +18,46 @@ interface LogbookDashboardProps {
   onOpenProfile: () => void
 }
 
+function logbookMatchesFilter(lb: DecryptedLogbook, query: string, locale: string): boolean {
+  const q = query.trim().toLowerCase()
+  if (!q) return true
+
+  if (lb.title.toLowerCase().includes(q)) return true
+
+  const updated = new Date(lb.updatedAt)
+  const year = updated.getFullYear().toString()
+  if (year.includes(q)) return true
+
+  const dateLabel = updated.toLocaleDateString(locale, {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric'
+  }).toLowerCase()
+  if (dateLabel.includes(q)) return true
+
+  return false
+}
+
+type LogbookSortKey = 'name' | 'date'
+type LogbookSortDirection = 'asc' | 'desc'
+
+function sortLogbooks(
+  items: DecryptedLogbook[],
+  sortBy: LogbookSortKey,
+  direction: LogbookSortDirection,
+  locale: string
+): DecryptedLogbook[] {
+  const sorted = [...items]
+  sorted.sort((a, b) => {
+    const cmp =
+      sortBy === 'name'
+        ? a.title.localeCompare(b.title, locale, { sensitivity: 'base' })
+        : new Date(a.updatedAt).getTime() - new Date(b.updatedAt).getTime()
+    return direction === 'asc' ? cmp : -cmp
+  })
+  return sorted
+}
+
 export default function LogbookDashboard({ onSelectLogbook, onLogout, onOpenProfile }: LogbookDashboardProps) {
   const { t, i18n } = useTranslation()
   const { showConfirm } = useDialog()
@@ -28,6 +69,10 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout, onOpenProf
   const [loading, setLoading] = useState(false)
   const [refreshing, setRefreshing] = useState(false)
   const [error, setError] = useState<string | null>(null)
+  const [filterQuery, setFilterQuery] = useState('')
+  const [sortBy, setSortBy] = useState<LogbookSortKey>('date')
+  const [sortDirection, setSortDirection] = useState<LogbookSortDirection>('desc')
+  const filterInputRef = useRef<HTMLInputElement>(null)
   const [online, setOnline] = useState(navigator.onLine)
   const [username] = useState(localStorage.getItem('active_username') || 'Skipper')
 
@@ -149,13 +194,31 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout, onOpenProf
   }
 
   const toggleLanguage = () => {
-    const nextLang = i18n.language.startsWith('de') ? 'en' : 'de'
-    i18n.changeLanguage(nextLang)
+    cycleAppLanguage(i18n)
   }
 
   const ownedLogbooks = logbooks.filter((lb) => !lb.isShared)
   const sharedLogbooks = logbooks.filter((lb) => lb.isShared)
 
+  const filterActive = filterQuery.trim().length > 0
+  const filteredOwnedLogbooks = useMemo(
+    () => ownedLogbooks.filter((lb) => logbookMatchesFilter(lb, filterQuery, i18n.language)),
+    [ownedLogbooks, filterQuery, i18n.language]
+  )
+  const filteredSharedLogbooks = useMemo(
+    () => sharedLogbooks.filter((lb) => logbookMatchesFilter(lb, filterQuery, i18n.language)),
+    [sharedLogbooks, filterQuery, i18n.language]
+  )
+  const sortedOwnedLogbooks = useMemo(
+    () => sortLogbooks(filteredOwnedLogbooks, sortBy, sortDirection, i18n.language),
+    [filteredOwnedLogbooks, sortBy, sortDirection, i18n.language]
+  )
+  const sortedSharedLogbooks = useMemo(
+    () => sortLogbooks(filteredSharedLogbooks, sortBy, sortDirection, i18n.language),
+    [filteredSharedLogbooks, sortBy, sortDirection, i18n.language]
+  )
+  const filteredLogbookCount = sortedOwnedLogbooks.length + sortedSharedLogbooks.length
+
   const renderLogbookCard = (lb: DecryptedLogbook) => {
     const isEditingTitle = editingLogbookId === lb.id
 
@@ -376,17 +439,115 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout, onOpenProf
           ) : logbooks.length === 0 ? (
             <div className="dashboard-status-msg glass">{t('dashboard.no_logbooks')}</div>
           ) : (
-            <div className="logbook-sections">
-              {ownedLogbooks.length > 0 && renderLogbookSection(
-                sharedLogbooks.length > 0 ? t('dashboard.section_owned') : t('dashboard.title'),
-                ownedLogbooks
+            <>
+              <div className="dashboard-list-controls">
+                <div className="dashboard-filter-bar">
+                  <label className="dashboard-filter-label" htmlFor="logbook-list-filter">
+                    {t('dashboard.filter_label')}
+                  </label>
+                  <div className="dashboard-filter-input-wrap">
+                    <Search size={18} className="dashboard-filter-icon" aria-hidden="true" />
+                    <input
+                      ref={filterInputRef}
+                      id="logbook-list-filter"
+                      type="search"
+                      className="input-text dashboard-filter-input"
+                      placeholder={t('dashboard.filter_placeholder')}
+                      value={filterQuery}
+                      onChange={(e) => setFilterQuery(e.target.value)}
+                      autoComplete="off"
+                      spellCheck={false}
+                      aria-describedby={filterActive ? 'logbook-filter-status' : undefined}
+                    />
+                    {filterActive && (
+                      <button
+                        type="button"
+                        className="dashboard-filter-clear"
+                        onClick={() => {
+                          setFilterQuery('')
+                          filterInputRef.current?.focus()
+                        }}
+                        title={t('dashboard.filter_clear')}
+                        aria-label={t('dashboard.filter_clear')}
+                      >
+                        <X size={16} aria-hidden="true" />
+                      </button>
+                    )}
+                  </div>
+                  {filterActive && (
+                    <p id="logbook-filter-status" className="dashboard-filter-meta" role="status">
+                      {t('dashboard.filter_results', { count: filteredLogbookCount })}
+                    </p>
+                  )}
+                </div>
+
+                <div className="dashboard-sort-bar">
+                  <span className="dashboard-sort-label">{t('dashboard.sort_label')}</span>
+                  <div className="dashboard-sort-row">
+                    <div className="dashboard-sort-group" role="group" aria-label={t('dashboard.sort_by_label')}>
+                      <button
+                        type="button"
+                        className={`dashboard-sort-btn${sortBy === 'name' ? ' is-active' : ''}`}
+                        onClick={() => setSortBy('name')}
+                        aria-pressed={sortBy === 'name'}
+                        aria-label={t('dashboard.sort_by_name')}
+                        title={t('dashboard.sort_by_name')}
+                      >
+                        <CaseSensitive size={16} aria-hidden="true" />
+                      </button>
+                      <button
+                        type="button"
+                        className={`dashboard-sort-btn${sortBy === 'date' ? ' is-active' : ''}`}
+                        onClick={() => setSortBy('date')}
+                        aria-pressed={sortBy === 'date'}
+                        aria-label={t('dashboard.sort_by_date')}
+                        title={t('dashboard.sort_by_date')}
+                      >
+                        <CalendarDays size={16} aria-hidden="true" />
+                      </button>
+                    </div>
+                    <div className="dashboard-sort-group" role="group" aria-label={t('dashboard.sort_dir_label')}>
+                      <button
+                        type="button"
+                        className={`dashboard-sort-btn${sortDirection === 'asc' ? ' is-active' : ''}`}
+                        onClick={() => setSortDirection('asc')}
+                        aria-pressed={sortDirection === 'asc'}
+                        aria-label={sortBy === 'name' ? t('dashboard.sort_name_asc') : t('dashboard.sort_date_asc')}
+                        title={sortBy === 'name' ? t('dashboard.sort_name_asc') : t('dashboard.sort_date_asc')}
+                      >
+                        <ArrowUp size={16} aria-hidden="true" />
+                      </button>
+                      <button
+                        type="button"
+                        className={`dashboard-sort-btn${sortDirection === 'desc' ? ' is-active' : ''}`}
+                        onClick={() => setSortDirection('desc')}
+                        aria-pressed={sortDirection === 'desc'}
+                        aria-label={sortBy === 'name' ? t('dashboard.sort_name_desc') : t('dashboard.sort_date_desc')}
+                        title={sortBy === 'name' ? t('dashboard.sort_name_desc') : t('dashboard.sort_date_desc')}
+                      >
+                        <ArrowDown size={16} aria-hidden="true" />
+                      </button>
+                    </div>
+                  </div>
+                </div>
+              </div>
+
+              {filterActive && filteredLogbookCount === 0 ? (
+                <div className="dashboard-status-msg glass">{t('dashboard.filter_no_results')}</div>
+              ) : (
+                <div className="logbook-sections">
+                  {sortedOwnedLogbooks.length > 0 && renderLogbookSection(
+                    sortedSharedLogbooks.length > 0 ? t('dashboard.section_owned') : t('dashboard.title'),
+                    sortedOwnedLogbooks
+                  )}
+                  {sortedSharedLogbooks.length > 0 && renderLogbookSection(
+                    t('dashboard.section_shared'),
+                    sortedSharedLogbooks,
+                    t('dashboard.section_shared_hint')
+                  )}
+                </div>
               )}
-              {sharedLogbooks.length > 0 && renderLogbookSection(
-                t('dashboard.section_shared'),
-                sharedLogbooks,
-                t('dashboard.section_shared_hint')
-              )}
-            </div>
+            </>
           )}
         </section>
       </main>

client/src/components/ReadOnlyViewer.tsx

@@ -1,5 +1,6 @@
 import { useState, useEffect } from 'react'
 import { useTranslation } from 'react-i18next'
+import { cycleAppLanguage, getNextLanguage, isGermanLocale } from '../utils/i18nLanguages.js'
 import { decryptJson } from '../services/crypto.js'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import VesselForm from './VesselForm.tsx'
@@ -48,9 +49,9 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
       const res = await fetch(`/api/collaboration/share-pull?token=${token}`)
       if (!res.ok) {
         if (res.status === 410) {
-          throw new Error(i18n.language.startsWith('de') ? 'Dieser Freigabelink ist abgelaufen.' : 'This share link has expired.')
+          throw new Error(isGermanLocale(i18n.language) ? 'Dieser Freigabelink ist abgelaufen.' : 'This share link has expired.')
         }
-        throw new Error(i18n.language.startsWith('de') ? 'Fehler beim Laden des freigegebenen Logbuchs.' : 'Failed to fetch shared logbook data.')
+        throw new Error(isGermanLocale(i18n.language) ? 'Fehler beim Laden des freigegebenen Logbuchs.' : 'Failed to fetch shared logbook data.')
       }
 
       const data = await res.json()
@@ -136,15 +137,14 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
   }
 
   const toggleLanguage = () => {
-    const nextLang = i18n.language.startsWith('de') ? 'en' : 'de'
-    i18n.changeLanguage(nextLang)
+    cycleAppLanguage(i18n)
   }
 
   if (loading) {
     return (
       <div className="tab-placeholder" style={{ height: '100vh', display: 'flex', flexDirection: 'column', justifyContent: 'center', alignItems: 'center' }}>
         <Ship className="header-logo spin" size={48} />
-        <p>{i18n.language.startsWith('de') ? 'Lade freigegebenes Logbuch...' : 'Loading shared logbook...'}</p>
+        <p>{isGermanLocale(i18n.language) ? 'Lade freigegebenes Logbuch...' : 'Loading shared logbook...'}</p>
       </div>
     )
   }
@@ -153,10 +153,10 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
     return (
       <div style={{ height: '100vh', display: 'flex', flexDirection: 'column', justifyContent: 'center', alignItems: 'center', padding: '20px', textAlign: 'center' }}>
         <AlertCircle size={48} style={{ color: '#ef4444', marginBottom: '16px' }} />
-        <h2 style={{ color: '#f1f5f9', marginBottom: '8px' }}>{i18n.language.startsWith('de') ? 'Verbindungsfehler' : 'Access Error'}</h2>
+        <h2 style={{ color: '#f1f5f9', marginBottom: '8px' }}>{isGermanLocale(i18n.language) ? 'Verbindungsfehler' : 'Access Error'}</h2>
         <p style={{ color: '#94a3b8', maxWidth: '400px', marginBottom: '24px' }}>{error}</p>
         <button className="btn primary" onClick={loadData} style={{ width: 'auto' }}>
-          {i18n.language.startsWith('de') ? 'Erneut versuchen' : 'Retry'}
+          {isGermanLocale(i18n.language) ? 'Erneut versuchen' : 'Retry'}
         </button>
       </div>
     )
@@ -173,7 +173,7 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
             <h2>{logbookTitle}</h2>
             <p className="app-subtitle" style={{ color: '#10b981', display: 'flex', alignItems: 'center', gap: '4px' }}>
               <Lock size={12} />
-              <span>{i18n.language.startsWith('de') ? 'Schreibgeschützte Ansicht (Ende-zu-Ende verschlüsselt)' : 'Read-Only View (End-to-End Encrypted)'}</span>
+              <span>{isGermanLocale(i18n.language) ? 'Schreibgeschützte Ansicht (Ende-zu-Ende verschlüsselt)' : 'Read-Only View (End-to-End Encrypted)'}</span>
             </p>
           </div>
         </div>
@@ -181,7 +181,7 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
         <div className="header-actions">
           <button className="btn secondary" onClick={toggleLanguage} style={{ width: 'auto', padding: '6px 12px', fontSize: '13px' }}>
             <Globe size={14} style={{ marginRight: '4px' }} />
-            {i18n.language.startsWith('de') ? 'English' : 'Deutsch'}
+            {t(`languages.${getNextLanguage(i18n.language)}`)}
           </button>
         </div>
       </header>

client/src/components/SettingsForm.tsx

@@ -6,6 +6,12 @@ import LogbookBackupPanel from './LogbookBackupPanel.tsx'
 import { useDialog } from './ModalDialog.tsx'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import { apiFetch } from '../services/api.js'
+import {
+  enableCollaboratorChangePush,
+  isCollaboratorPushActive,
+  isPushSupported
+} from '../services/pushNotifications.js'
+import { isIosDevice, isRunningStandalone } from '../hooks/usePwaInstall.js'
 
 interface SettingsFormProps {
   logbookId?: string | null
@@ -151,6 +157,43 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
     }
   }
 
+  const promptPushAfterInviteCreated = async () => {
+    if (!isPushSupported()) return
+    if (await isCollaboratorPushActive()) return
+
+    const iosNeedsInstall = isIosDevice() && !isRunningStandalone()
+
+    if (iosNeedsInstall) {
+      await showAlert(
+        t('settings.invite_push_prompt_ios_message'),
+        t('settings.invite_push_prompt_title'),
+        t('settings.invite_push_prompt_later')
+      )
+      return
+    }
+
+    const enable = await showConfirm(
+      t('settings.invite_push_prompt_message'),
+      t('settings.invite_push_prompt_title'),
+      t('settings.invite_push_prompt_enable'),
+      t('settings.invite_push_prompt_later')
+    )
+
+    if (!enable) return
+
+    try {
+      await enableCollaboratorChangePush()
+      await showAlert(
+        t('settings.invite_push_prompt_success'),
+        t('settings.invite_push_prompt_title')
+      )
+      trackPlausibleEvent(PlausibleEvents.PUSH_ENABLED)
+    } catch (err: unknown) {
+      console.error('Failed to enable push after invite:', err)
+      await showAlert(err instanceof Error ? err.message : t('profile.push_error'))
+    }
+  }
+
   const handleGenerateInvite = async () => {
     if (!logbookId) return
     setGeneratingInvite(true)
@@ -175,6 +218,7 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
 
       setInviteLink(link)
       trackPlausibleEvent(PlausibleEvents.INVITE_GENERATED)
+      await promptPushAfterInviteCreated()
     } catch (err: unknown) {
       console.error('Failed to generate invite:', err)
       showAlert(err instanceof Error ? err.message : 'Failed to generate invite link.')

client/src/components/TankLiterInput.tsx

@@ -0,0 +1,103 @@
+import React, { useCallback } from 'react'
+import { useTranslation } from 'react-i18next'
+import { clampTankLiters } from '../utils/tankCapacity.js'
+
+interface TankLiterInputProps {
+  id?: string
+  label: string
+  value: string
+  onChange: (value: string) => void
+  maxLiters?: number
+  disabled?: boolean
+  titleTooltip?: string
+}
+
+function parseInputLiters(value: string): number {
+  const trimmed = value.trim().replace(',', '.')
+  if (!trimmed) return 0
+  const parsed = Number(trimmed)
+  return Number.isFinite(parsed) ? parsed : 0
+}
+
+export default function TankLiterInput({
+  id,
+  label,
+  value,
+  onChange,
+  maxLiters,
+  disabled = false,
+  titleTooltip
+}: TankLiterInputProps) {
+  const { t } = useTranslation()
+  const useSlider = maxLiters != null && maxLiters > 0
+
+  const emitValue = useCallback(
+    (liters: number) => {
+      const clamped = clampTankLiters(liters, useSlider ? maxLiters : undefined)
+      const str =
+        Number.isInteger(clamped) ? String(clamped) : String(Number(clamped.toFixed(1)))
+      onChange(str)
+    },
+    [onChange, maxLiters, useSlider]
+  )
+
+  const handleNumberChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    onChange(e.target.value)
+  }
+
+  const handleNumberBlur = () => {
+    if (!useSlider) return
+    emitValue(parseInputLiters(value))
+  }
+
+  const handleSliderChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    emitValue(Number(e.target.value))
+  }
+
+  const numericValue = parseInputLiters(value)
+  const sliderValue = useSlider ? clampTankLiters(numericValue, maxLiters) : 0
+
+  return (
+    <div className="input-group tank-liter-input">
+      <label htmlFor={id} title={titleTooltip}>{label}</label>
+      {useSlider && (
+        <>
+          <input
+            type="range"
+            className="tank-liter-slider"
+            min={0}
+            max={maxLiters}
+            step={1}
+            value={sliderValue}
+            onChange={handleSliderChange}
+            disabled={disabled}
+            title={titleTooltip}
+            aria-valuemin={0}
+            aria-valuemax={maxLiters}
+            aria-valuenow={sliderValue}
+            aria-label={label}
+          />
+          <div className="tank-liter-slider-hint" aria-hidden="true">
+            {t('logs.tank_slider_of_max', {
+              current: sliderValue,
+              max: maxLiters
+            })}
+          </div>
+        </>
+      )}
+      <input
+        id={id}
+        type="number"
+        className="input-text"
+        value={value}
+        onChange={handleNumberChange}
+        onBlur={handleNumberBlur}
+        disabled={disabled}
+        min={0}
+        max={useSlider ? maxLiters : undefined}
+        step="any"
+        title={titleTooltip}
+      />
+    </div>
+  )
+}

client/src/components/UserProfilePage.tsx

@@ -726,7 +726,7 @@ export default function UserProfilePage({ onBack, onLogout }: UserProfilePagePro
               </div>
             </section>
 
-            <section className="form-card">
+            <section className="form-card profile-stats-section">
               <div className="form-header">
                 <BarChart2 size={24} className="form-icon" />
                 <div>
@@ -736,7 +736,7 @@ export default function UserProfilePage({ onBack, onLogout }: UserProfilePagePro
               </div>
 
               {(statsTotals || profile) && (
-                <div className="stats-kpi-grid">
+                <div className="stats-kpi-grid profile-stats-kpi-grid">
                   <KpiCard
                     icon={<BookOpen size={20} />}
                     label={t('profile.stats_logbooks')}

client/src/components/UserProfilePreferences.tsx

@@ -5,6 +5,7 @@ import ThemedSelect from './ThemedSelect.tsx'
 import PushNotificationSettings from './PushNotificationSettings.tsx'
 import PwaInstallPrompt from './PwaInstallPrompt.tsx'
 import { notifyAppearanceChanged } from '../services/appearance.js'
+import { saveAppearancePrefsToServer } from '../services/appearancePrefs.js'
 import { useAppTour } from '../context/AppTourContext.tsx'
 import {
   getColorSchemePreference,
@@ -32,6 +33,9 @@ export default function UserProfilePreferences({ userId }: UserProfilePreference
     setThemePreference(userId, nextTheme)
     setColorSchemePreference(userId, nextColorScheme)
     notifyAppearanceChanged()
+    void saveAppearancePrefsToServer(nextTheme, nextColorScheme).catch((err) => {
+      console.warn('Failed to save appearance prefs to server:', err)
+    })
   }
 
   const handleThemeChange = (nextTheme: string) => {

client/src/components/VesselForm.tsx

@@ -7,6 +7,7 @@ import { encryptJson, decryptJson } from '../services/crypto.js'
 import { syncLogbook } from '../services/sync.js'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import { Ship, Save, Check, Plus, X, Camera, Trash2 } from 'lucide-react'
+import { parseOptionalTankLiters, tankCapacityInputFromStored } from '../utils/tankCapacity.js'
 
 interface VesselFormProps {
   logbookId: string
@@ -47,6 +48,9 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
   const [mmsi, setMmsi] = useState('')
   const [sails, setSails] = useState<string[]>([])
   const [newSailName, setNewSailName] = useState('')
+  const [freshwaterCapacityL, setFreshwaterCapacityL] = useState('')
+  const [fuelCapacityL, setFuelCapacityL] = useState('')
+  const [greywaterCapacityL, setGreywaterCapacityL] = useState('')
 
   const fileInputRef = React.useRef<HTMLInputElement>(null)
   const [photo, setPhoto] = useState<string | null>(null)
@@ -78,6 +82,9 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
           setMmsi(preloadedData.mmsi || '')
           setSails(preloadedData.sails || [])
           setPhoto(preloadedData.photo || null)
+          setFreshwaterCapacityL(tankCapacityInputFromStored(preloadedData.freshwaterCapacityL))
+          setFuelCapacityL(tankCapacityInputFromStored(preloadedData.fuelCapacityL))
+          setGreywaterCapacityL(tankCapacityInputFromStored(preloadedData.greywaterCapacityL))
           return
         }
 
@@ -103,6 +110,9 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
             setMmsi(decrypted.mmsi || '')
             setSails(decrypted.sails || [])
             setPhoto(decrypted.photo || null)
+            setFreshwaterCapacityL(tankCapacityInputFromStored(decrypted.freshwaterCapacityL))
+            setFuelCapacityL(tankCapacityInputFromStored(decrypted.fuelCapacityL))
+            setGreywaterCapacityL(tankCapacityInputFromStored(decrypted.greywaterCapacityL))
           }
         }
       } catch (err: any) {
@@ -201,12 +211,19 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
       let parsedLengthM: number | undefined
       let parsedDraftM: number | undefined
       let parsedAirDraftM: number | undefined
+      let parsedFreshwaterCapacityL: number | undefined
+      let parsedFuelCapacityL: number | undefined
+      let parsedGreywaterCapacityL: number | undefined
       try {
         parsedLengthM = parseOptionalMetricMeters(lengthM)
         parsedDraftM = parseOptionalMetricMeters(draftM)
         parsedAirDraftM = parseOptionalMetricMeters(airDraftM)
-      } catch {
-        setError(t('vessel.invalid_metric'))
+        parsedFreshwaterCapacityL = parseOptionalTankLiters(freshwaterCapacityL)
+        parsedFuelCapacityL = parseOptionalTankLiters(fuelCapacityL)
+        parsedGreywaterCapacityL = parseOptionalTankLiters(greywaterCapacityL)
+      } catch (err: unknown) {
+        const msg = err instanceof Error ? err.message : ''
+        setError(msg === 'invalid_tank_liters' ? t('vessel.invalid_tank_liters') : t('vessel.invalid_metric'))
         setSaving(false)
         return
       }
@@ -217,6 +234,9 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
         lengthM: parsedLengthM,
         draftM: parsedDraftM,
         airDraftM: parsedAirDraftM,
+        freshwaterCapacityL: parsedFreshwaterCapacityL,
+        fuelCapacityL: parsedFuelCapacityL,
+        greywaterCapacityL: parsedGreywaterCapacityL,
         homePort: homePort.trim(),
         charterCompany: charterCompany.trim(),
         owner: owner.trim(),
@@ -480,6 +500,49 @@ export default function VesselForm({ logbookId, readOnly = false, preloadedData
             />
           </div>
 
+          <div className="vessel-tanks-section">
+            <h3>{t('vessel.tanks_section')}</h3>
+            <p className="vessel-tanks-help">{t('vessel.tanks_help')}</p>
+            <div className="vessel-tanks-grid">
+              <div className="input-group">
+                <label>{t('vessel.freshwater_capacity_l')}</label>
+                <input
+                  type="text"
+                  inputMode="decimal"
+                  className="input-text"
+                  value={freshwaterCapacityL}
+                  onChange={(e) => setFreshwaterCapacityL(e.target.value)}
+                  disabled={saving || readOnly}
+                  placeholder="0"
+                />
+              </div>
+              <div className="input-group">
+                <label>{t('vessel.fuel_capacity_l')}</label>
+                <input
+                  type="text"
+                  inputMode="decimal"
+                  className="input-text"
+                  value={fuelCapacityL}
+                  onChange={(e) => setFuelCapacityL(e.target.value)}
+                  disabled={saving || readOnly}
+                  placeholder="0"
+                />
+              </div>
+              <div className="input-group">
+                <label>{t('vessel.greywater_capacity_l')}</label>
+                <input
+                  type="text"
+                  inputMode="decimal"
+                  className="input-text"
+                  value={greywaterCapacityL}
+                  onChange={(e) => setGreywaterCapacityL(e.target.value)}
+                  disabled={saving || readOnly}
+                  placeholder="0"
+                />
+              </div>
+            </div>
+          </div>
+
           <div className="sails-section">
             <h3>{t('vessel.sails_list')}</h3>
             <p className="help-text">{t('vessel.sails_help')}</p>

client/src/hooks/usePwaUpdate.ts

@@ -1,13 +1,19 @@
 import { useEffect, useRef } from 'react'
 import { useRegisterSW } from 'virtual:pwa-register/react'
+import {
+  forcePwaRecovery,
+  markReloadAttempt,
+  recentlyAttemptedReload,
+  triggerServiceWorkerUpdate
+} from '../services/pwaStartup.js'
+import { isDeployedVersionNewer } from '../services/pwaVersion.js'
 
-const UPDATE_CHECK_INTERVAL_MS = 60 * 60 * 1000
+const UPDATE_CHECK_INTERVAL_MS = 15 * 60 * 1000
 const UPDATE_SUPPRESS_KEY = 'pwa_update_suppress_until'
 const UPDATE_SUPPRESS_MS = 30_000
-const UPDATE_DISMISS_SUPPRESS_MS = 60 * 60 * 1000
-const UPDATE_RELOAD_FALLBACK_MS = 2000
-/** Prevent Android PWA cold-start reload loops from onNeedReload. */
-const PWA_INITIAL_RELOAD_KEY = 'pwa_sw_initial_reload_done'
+const UPDATE_DISMISS_SUPPRESS_MS = 15 * 60 * 1000
+const UPDATE_RELOAD_FALLBACK_MS = 2_000
+const UPDATE_HARD_RECOVERY_MS = 5_000
 
 function isUpdateSuppressed(): boolean {
   const suppressUntil = Number(sessionStorage.getItem(UPDATE_SUPPRESS_KEY) || '0')
@@ -22,10 +28,16 @@ function clearUpdateSuppression(): void {
   sessionStorage.removeItem(UPDATE_SUPPRESS_KEY)
 }
 
-function scheduleUpdateChecks(registration: ServiceWorkerRegistration): () => void {
+function scheduleUpdateChecks(
+  registration: ServiceWorkerRegistration,
+  onOutdated: () => void
+): () => void {
   const checkForUpdate = () => {
     if (isUpdateSuppressed()) return
     registration.update().catch(() => {})
+    void isDeployedVersionNewer().then((outdated) => {
+      if (outdated) onOutdated()
+    })
   }
 
   const onVisibilityChange = () => {
@@ -34,17 +46,44 @@ function scheduleUpdateChecks(registration: ServiceWorkerRegistration): () => vo
     }
   }
 
+  const onOnline = () => {
+    checkForUpdate()
+  }
+
   document.addEventListener('visibilitychange', onVisibilityChange)
-  const intervalId = window.setInterval(checkForUpdate, UPDATE_CHECK_INTERVAL_MS)
+  window.addEventListener('online', onOnline)
+  const updateIntervalId = window.setInterval(checkForUpdate, UPDATE_CHECK_INTERVAL_MS)
+
+  checkForUpdate()
 
   return () => {
     document.removeEventListener('visibilitychange', onVisibilityChange)
-    window.clearInterval(intervalId)
+    window.removeEventListener('online', onOnline)
+    window.clearInterval(updateIntervalId)
   }
 }
 
+function reloadForServiceWorkerTakeover(): void {
+  if (recentlyAttemptedReload()) return
+  markReloadAttempt()
+  clearUpdateSuppression()
+  window.location.reload()
+}
+
 export function usePwaUpdate() {
   const cleanupRef = useRef<(() => void) | null>(null)
+  const reloadFallbackTimerRef = useRef<number | null>(null)
+  const forceRecoveryTimerRef = useRef<number | null>(null)
+  const setNeedRefreshRef = useRef<((value: boolean) => void) | null>(null)
+  const pendingNeedRefreshRef = useRef<boolean | null>(null)
+
+  const applyNeedRefresh = (value: boolean) => {
+    if (setNeedRefreshRef.current) {
+      setNeedRefreshRef.current(value)
+      return
+    }
+    pendingNeedRefreshRef.current = value
+  }
 
   const {
     needRefresh: [needRefresh, setNeedRefresh],
@@ -52,39 +91,56 @@ export function usePwaUpdate() {
   } = useRegisterSW({
     immediate: !import.meta.env.DEV,
     onNeedReload() {
-      // First SW takeover requires one reload; guard against repeated reloads on Android PWA resume.
-      if (sessionStorage.getItem(PWA_INITIAL_RELOAD_KEY)) {
-        return
-      }
-      sessionStorage.setItem(PWA_INITIAL_RELOAD_KEY, '1')
-      clearUpdateSuppression()
-      setNeedRefresh(false)
-      window.location.reload()
+      if (isUpdateSuppressed()) return
+      applyNeedRefresh(true)
     },
     onNeedRefresh() {
       if (isUpdateSuppressed()) return
-      setNeedRefresh(true)
+      applyNeedRefresh(true)
     },
     onRegisteredSW(_swUrl: string, registration: ServiceWorkerRegistration | undefined) {
       if (!registration) return
 
       if (isUpdateSuppressed() || !registration.waiting) {
-        setNeedRefresh(false)
+        applyNeedRefresh(false)
       }
 
       cleanupRef.current?.()
-      cleanupRef.current = scheduleUpdateChecks(registration)
+      cleanupRef.current = scheduleUpdateChecks(registration, () => {
+        if (isUpdateSuppressed()) return
+        applyNeedRefresh(true)
+      })
     }
   })
 
+  setNeedRefreshRef.current = setNeedRefresh
+
   useEffect(() => {
     if (isUpdateSuppressed()) {
       setNeedRefresh(false)
+    } else if (pendingNeedRefreshRef.current !== null) {
+      const pending = pendingNeedRefreshRef.current
+      pendingNeedRefreshRef.current = null
+      setNeedRefresh(pending)
     }
 
+    void isDeployedVersionNewer().then((outdated) => {
+      if (outdated) {
+        setNeedRefresh(true)
+      }
+    })
+
     return () => {
       cleanupRef.current?.()
       cleanupRef.current = null
+      if (reloadFallbackTimerRef.current !== null) {
+        window.clearTimeout(reloadFallbackTimerRef.current)
+        reloadFallbackTimerRef.current = null
+      }
+      if (forceRecoveryTimerRef.current !== null) {
+        window.clearTimeout(forceRecoveryTimerRef.current)
+        forceRecoveryTimerRef.current = null
+      }
     }
   }, [setNeedRefresh])
 
@@ -93,11 +149,24 @@ export function usePwaUpdate() {
     suppressUpdatePrompt()
 
     await updateServiceWorker(true)
+    await triggerServiceWorkerUpdate()
 
-    // vite-plugin-pwa reloads via the "controlling" event; fallback if that does not fire.
-    window.setTimeout(() => {
-      window.location.reload()
+    if (reloadFallbackTimerRef.current !== null) {
+      window.clearTimeout(reloadFallbackTimerRef.current)
+    }
+    if (forceRecoveryTimerRef.current !== null) {
+      window.clearTimeout(forceRecoveryTimerRef.current)
+    }
+
+    reloadFallbackTimerRef.current = window.setTimeout(() => {
+      reloadFallbackTimerRef.current = null
+      reloadForServiceWorkerTakeover()
     }, UPDATE_RELOAD_FALLBACK_MS)
+
+    forceRecoveryTimerRef.current = window.setTimeout(() => {
+      forceRecoveryTimerRef.current = null
+      void forcePwaRecovery()
+    }, UPDATE_HARD_RECOVERY_MS)
   }
 
   const dismissUpdate = () => {

client/src/i18n/index.ts

@@ -3,12 +3,19 @@ import { initReactI18next } from 'react-i18next'
 import LanguageDetector from 'i18next-browser-languagedetector'
 import enJson from './locales/en.json'
 import deJson from './locales/de.json'
+import daJson from './locales/da.json'
+import svJson from './locales/sv.json'
+import nbJson from './locales/nb.json'
 import { initSeo } from '../utils/seo.js'
+import { SUPPORTED_LANGUAGES } from '../utils/i18nLanguages.js'
 
 /** JSON files wrap strings in `translation` — register that namespace explicitly. */
 const resources = {
   en: { translation: enJson.translation },
-  de: { translation: deJson.translation }
+  de: { translation: deJson.translation },
+  da: { translation: daJson.translation },
+  sv: { translation: svJson.translation },
+  nb: { translation: nbJson.translation }
 }
 
 i18n
@@ -18,7 +25,7 @@ i18n
     resources,
     defaultNS: 'translation',
     fallbackLng: 'en',
-    supportedLngs: ['de', 'en'],
+    supportedLngs: [...SUPPORTED_LANGUAGES],
     nonExplicitSupportedLngs: true,
     load: 'languageOnly',
     interpolation: {

client/src/i18n/localeKeys.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, it } from 'vitest'
+import deJson from '../i18n/locales/de.json'
+import enJson from '../i18n/locales/en.json'
+import daJson from '../i18n/locales/da.json'
+import svJson from '../i18n/locales/sv.json'
+import nbJson from '../i18n/locales/nb.json'
+
+function collectKeys(obj: Record<string, unknown>, prefix = ''): string[] {
+  const keys: string[] = []
+  for (const [key, value] of Object.entries(obj)) {
+    const path = prefix ? `${prefix}.${key}` : key
+    if (value && typeof value === 'object' && !Array.isArray(value)) {
+      keys.push(...collectKeys(value as Record<string, unknown>, path))
+    } else {
+      keys.push(path)
+    }
+  }
+  return keys.sort()
+}
+
+const bundles = {
+  de: deJson.translation,
+  en: enJson.translation,
+  da: daJson.translation,
+  sv: svJson.translation,
+  nb: nbJson.translation
+} as const
+
+describe('i18n locale key parity', () => {
+  const masterKeys = collectKeys(bundles.de)
+
+  it.each(Object.keys(bundles).filter((lang) => lang !== 'de'))(
+    '%s has the same keys as de',
+    (lang) => {
+      const keys = collectKeys(bundles[lang as keyof typeof bundles])
+      expect(keys).toEqual(masterKeys)
+    }
+  )
+})

client/src/i18n/locales/da.json

@@ -0,0 +1,736 @@
+{
+  "translation": {
+    "app": {
+      "name": "Kapteins Daagbok",
+      "tagline": "Privat yacht-logbog",
+      "beta": "Beta",
+      "beta_hint": "Betaversion - funktioner kan stadig ændres"
+    },
+    "languages": {
+      "de": "Deutsch",
+      "en": "English",
+      "da": "Dansk",
+      "sv": "Svenska",
+      "nb": "Norsk"
+    },
+    "common": {
+      "unsaved_changes_title": "Ikke gemte ændringer",
+      "unsaved_changes_message": "Du har ændringer, der ikke er gemt. Vil du virkelig forlade siden? Dine ændringer vil gå tabt.",
+      "unsaved_changes_leave": "Forladelse",
+      "unsaved_changes_stay": "Bliv her"
+    },
+    "nav": {
+      "dashboard": "Dashboard",
+      "vessel": "Skibsdata",
+      "crew": "Besætningsliste",
+      "deviation": "Tabel over distraktioner",
+      "logs": "Indlæg i logbogen",
+      "stats": "Statistik",
+      "settings": "Indstillinger"
+    },
+    "auth": {
+      "welcome": "Velkommen til Kapteins Daagbok.",
+      "tagline": "Din sikre, E2E-krypterede maritime logbog.",
+      "register": "Registrer dig med Passkey.",
+      "login": "Log ind med Passkey.",
+      "login_as": "Log ind som {{name}}",
+      "quick_login": "Hurtigt login",
+      "forget_account": "Glemt konto på denne enhed",
+      "not_user": "Ikke {{name}}?",
+      "recovery_title": "Din genoprettelsesnøgle",
+      "recovery_warning": "VIGTIGT: Skriv disse 12 ord ned. Hvis du mister din Passkey og disse ord, kan dine data ikke gendannes.",
+      "confirm_recovery": "Jeg har skrevet ordene ned",
+      "status_logged_in": "Logget ind",
+      "status_logged_out": "Aflyst",
+      "copied": "Kopieret!",
+      "copy_phrase": "Kopieringstast",
+      "enter_recovery": "Indtast genoprettelsesnøgle",
+      "recovery_fallback_warning": "Din Passkey er blevet godkendt, men din enhed understøtter ikke hardwarebaseret nøgleafledning. Indtast din genoprettelsesnøgle på 12 ord for at dekryptere din logbog.",
+      "recovery_placeholder": "Indtast din genoprettelsesnøgle, som består af 12 ord adskilt af mellemrum...",
+      "back": "Tilbage",
+      "decrypting": "Dekryptering...",
+      "decrypt_logbook": "Afkodning af logbog",
+      "error_incorrect_recovery": "Forkert genoprettelsesnøgle. Dekryptering mislykkedes.",
+      "error_decryption_failed": "Dekryptering mislykkedes. Tjek venligst din genoprettelsesnøgle.",
+      "or_register": "eller registrer dig",
+      "explore_demo": "Udforsk demoen uden en konto",
+      "username_placeholder": "Brugernavn / skippernavn",
+      "processing": "Behandling...",
+      "help": "Hjælp",
+      "setup_pin_title": "Opsæt lokal PIN-kode (valgfrit)",
+      "setup_pin_warning": "Da din enhed ikke understøtter direkte Passkey-nøgleafledning, ville du ellers være nødt til at indtaste din 12-ordsnøgle, hver gang du logger ind på denne enhed. Opsæt en lokal PIN-kode for at undgå dette.",
+      "pin_placeholder": "E.G. 123456",
+      "pin_label": "Lokal PIN-kode (4-8 cifre)",
+      "save_pin": "Gem PIN-kode og fortsæt",
+      "skip_pin": "Spring over og brug gendannelse",
+      "enter_pin_title": "Afkodning med PIN-kode",
+      "enter_pin_warning": "Indtast din lokale PIN-kode for at låse op for dekrypteringsnøglen på denne enhed.",
+      "enter_pin_placeholder": "Indtast din pinkode...",
+      "decrypt_with_pin": "Afkodning",
+      "use_recovery_instead": "Brug genoprettelsesnøgler i stedet",
+      "error_incorrect_pin": "Forkert PIN-kode. Dekryptering mislykkedes."
+    },
+    "pwa": {
+      "title": "Installer app",
+      "generic_benefit": "Installer Kapteins Daagbok på din enhed for at få hurtigere adgang, offline-brug og permanent datalagring.",
+      "ios_instructions": "På iPad/iPhone: Føj appen til startskærmen, så dine logbogsdata forbliver beskyttet, og appen starter som en indbygget app.",
+      "ios_step_share": "Tryk på aktiesymbolet i Safari-linjen",
+      "ios_step_add": "Vælg \"Gå til startskærm\"",
+      "install_now": "Installer nu",
+      "installing": "Installation...",
+      "later": "Senere",
+      "never": "Vis ikke mere",
+      "platform_ios": "Installation via Safari.",
+      "platform_android": "Installation via browseren",
+      "platform_desktop": "Installation som desktop-app",
+      "settings_section": "Installation af app",
+      "update_title": "Opdatering tilgængelig",
+      "update_desc": "En ny version af Kapteins Daagbok er klar. Opdater venligst for at få de seneste ændringer.",
+      "update_now": "Opdater nu",
+      "update_reloading": "Indlæser..."
+    },
+    "sync": {
+      "status_synced": "Synkroniseret",
+      "status_syncing": "Synkroniser...",
+      "status_offline": "Offline-cache",
+      "status_unsynced": "Usynkroniserede ændringer"
+    },
+    "vessel": {
+      "title": "Skibets stamdata",
+      "name": "Yacht-navn",
+      "type": "Yacht-type",
+      "type_unset": "- ikke specificeret -",
+      "type_sailing": "Sejlbåd",
+      "type_motor": "Motorbåd",
+      "length_m": "Længde (m)",
+      "draft_m": "Dybgang (m)",
+      "air_draft_m": "Højde (m)",
+      "invalid_metric": "Ugyldig numerisk værdi - indtast venligst meter som et decimaltal (f.eks. 12,5).",
+      "port": "Hjemmehavn",
+      "owner": "Ejer",
+      "charter": "Charterselskab",
+      "registration": "Nummerplade/registreringsnummer",
+      "callsign": "Radiokaldesignal",
+      "atis": "ATIS nr.",
+      "mmsi": "MMSI-nr.",
+      "save": "Gem skibsdata",
+      "saving": "Vil blive reddet...",
+      "saved": "Skibsdata er gemt med succes!",
+      "loading": "Skibsdata er indlæst...",
+      "sails_list": "Sejl (eksisterende sejl)",
+      "sails_help": "Indtast de sejl, der er tilgængelige på din båd her (f.eks. storsejl, genua, fok).",
+      "add_sail": "Tilføj sejl",
+      "sail_name_placeholder": "z. f.eks. storsejl",
+      "no_sails": "Ingen sejl opbevaret.",
+      "photo_add": "Tilføj foto",
+      "photo_change": "Skift foto",
+      "photo_delete": "Slet foto",
+      "tanks_section": "Tanke (kapacitet)",
+      "tanks_help": "Valgfrit i liter - muliggør slider i journalen for kendte tankstørrelser.",
+      "freshwater_capacity_l": "Drikkevand (liter)",
+      "fuel_capacity_l": "Brændstof (liter)",
+      "greywater_capacity_l": "Gråt vand (liter)",
+      "invalid_tank_liters": "Ugyldig numerisk værdi - indtast venligst liter som et tal (f.eks. 200)."
+    },
+    "logs": {
+      "title": "Logbogsdagbog",
+      "new_entry": "Ny rejsedag",
+      "travel_details": "Detaljer om rejsen",
+      "add_event": "Tilføj ny logbogspost",
+      "add_event_btn": "Tilføj begivenhed",
+      "edit_event": "Rediger begivenhed",
+      "save_event_btn": "Gem ændring",
+      "cancel_event_edit": "Annuller",
+      "delete_event": "Slet begivenhed",
+      "sign_cleared_skipper_re_sign_title": "Skippers underskrift fjernet",
+      "sign_cleared_skipper_re_sign": "Hændelsesloggen er blevet ændret. Skipperens underskrift er blevet fjernet. Godkend venligst igen.",
+      "date": "dato",
+      "day_of_travel": "Rejsedag / rejsedag",
+      "departure": "Starthavn (rejse fra)",
+      "destination": "Destinationsport (til)",
+      "route": "Rejse fra/til",
+      "freshwater": "Ferskvand (liter)",
+      "fuel": "Treibstoff / Brændstof (liter)",
+      "greywater": "Gråt vand (liter)",
+      "greywater_level": "Fyldningsniveau",
+      "tank_slider_of_max": "{{current}} / {{max}} L",
+      "tank_capacity_tooltip": "Hvis tankkapaciteten (liter) er gemt i skibsdataene, kan du indtaste fyldningsniveauerne her ved hjælp af skyderen.",
+      "morning": "Stå op om morgenen",
+      "refilled": "Genopfyldt",
+      "evening": "Stand om aftenen",
+      "consumption": "Dagligt forbrug",
+      "signatures": "Underskrifter / frigivelse",
+      "sign_skipper": "Skippers underskrift",
+      "sign_crew": "Crew-signatur",
+      "sign_hint": "Tegn med finger, pen eller mus",
+      "sign_clear": "Sletning",
+      "sign_export_image": "[Underskrift]",
+      "sign_with_passkey": "Frigør med Passkey.",
+      "sign_passkey_signing": "Der anmodes om Passkey...",
+      "sign_passkey_signed": "Udgivet af {{username}}",
+      "sign_passkey_export": "Passkey: {{username}} ({{date}})",
+      "sign_attribution_export": "{{username}} ({{date}})",
+      "sign_passkey_clear": "Fjern Passkey-frigivelse",
+      "sign_mode_passkey": "Passkey",
+      "sign_mode_classic": "Klassisk",
+      "sign_passkey_failed": "Passkey Frigivelse mislykkedes",
+      "sign_passkey_cancelled": "Passkey Frigivelse annulleret",
+      "sign_invalid": "Signatur ugyldig - indholdet er blevet ændret",
+      "sign_badge_skipper": "Skipper",
+      "sign_badge_skipper_invalid": "Ugyldig",
+      "sign_badge_skipper_title_valid": "Skipper har udgivet",
+      "sign_badge_skipper_title_invalid": "Skippers signatur er ugyldig - indholdet er blevet ændret",
+      "sign_classic_or_passkey": "Valgfrit: klassisk underskrift eller Passkey-frigivelse ovenfor",
+      "sign_crew_passkey_hint": "Besætningsmedlemmer med skriveadgang kan frigive via Passkey.",
+      "sign_offline_hint": "Passkey-Godkendelse kræver internet - klassisk underskrift mulig offline",
+      "sign_lock_notice": "Efter underskrivelsen kan der ikke foretages ændringer i logbogen (undtagen fotos), uden at skipper og besætning skal skrive under igen.",
+      "sign_lock_active": "Denne post er underskrevet. Ændringer i logbogen (undtagen fotos) fjerner automatisk skipperens og besætningens underskrifter.",
+      "sign_lock_warning_title": "Bekræft underskrift",
+      "sign_lock_warning": "Efter underskrivelsen er det ikke længere muligt at foretage ændringer i logbogen (undtagen fotos), uden at skipper og besætning skal skrive under igen.\n\nVil du gerne fortsætte?",
+      "sign_proceed": "Tegn",
+      "sign_cancel": "Annuller",
+      "sign_cleared_re_sign_title": "Underskrifter fjernet",
+      "sign_cleared_re_sign": "Logbogsoptegnelsen er blevet ændret. Skipperens og besætningens underskrifter er blevet fjernet. Underskriv venligst igen.",
+      "no_entries": "Ingen logbogsposter fundet for denne yacht. Opret din første rejsedag!",
+      "back_to_list": "Tilbage til tidsskriftslisten",
+      "save": "Gem logbogsside",
+      "saving": "Vil blive reddet...",
+      "saved": "Logbogsside gemt med succes!",
+      "loading": "Dagbogen er ved at blive indlæst.",
+      "delete_entry": "Slet tag",
+      "delete_confirm": "Er du sikker på, at du vil slette denne rejsedag permanent?",
+      "carry_over_tanks_title": "Overføre data fra den foregående dag?",
+      "carry_over_tanks_confirm": "Overtage starthavn, ferskvand, brændstof og gråvand fra den sidste dag på turen?\n\nStarthavn: {{departure}}\nFerskvand: {{fw}} L\nBrændstof: {{fuel}} L\nGråt vand: {{greywater}} L",
+      "carry_over_tanks_yes": "Tag over",
+      "carry_over_tanks_no": "Start med 0",
+      "event_title": "Kronologisk hændelseslog",
+      "no_events": "Der er endnu ikke indtastet nogen begivenheder for denne rejsedag.",
+      "event_time": "Tidspunkt på dagen",
+      "event_mgk": "MgK-kursus",
+      "event_rwk": "RwK-kursus",
+      "event_course_section": "Kursus",
+      "course_dial_hint": "Drej ringen eller indtast grader",
+      "course_dial_step_label": "Trinstørrelse",
+      "course_step_fine": "1°",
+      "course_step_medium": "5°",
+      "course_step_coarse": "10°",
+      "course_tab_mgk": "MgK",
+      "course_tab_rwk": "rwK",
+      "course_invalid": "Ugyldigt kursus (0-360)",
+      "course_placeholder_degrees": "z. B. 180",
+      "course_placeholder_cardinal": "z. E.G. NW",
+      "compass_n": "N",
+      "compass_e": "O",
+      "compass_s": "S",
+      "compass_w": "W",
+      "wind_mode_cardinal": "Kardinal",
+      "wind_mode_degrees": "Som grad",
+      "event_wind_direction": "Vindretning",
+      "event_wind_strength": "Vindstyrke",
+      "event_sea_state": "Havets tilstand",
+      "event_weather": "Vejret",
+      "event_log": "Log (sm)",
+      "event_gps": "GPS-position",
+      "event_location": "Sted/havn",
+      "event_location_placeholder": "z. f.eks. Kiel",
+      "event_remarks": "Bemærkninger / hændelser",
+      "gps_btn": "Hent GPS-koordinater",
+      "weather_btn": "OpenWeatherMap Kald vejret op",
+      "event_wind_pressure": "Lufttryk (hPa)",
+      "event_heel": "Krængning (°)",
+      "event_sails": "Sejlhåndtering/motor",
+      "motor_propulsion": "Kørsel med maskine",
+      "sails_picker_show_more": "Vis alle sejl",
+      "sails_picker_show_less": "Vis mindre",
+      "motor_hours": "Maskintimer (i alt)",
+      "fuel_per_motor_hour": "Forbrug pr. maskintime",
+      "event_distance": "Afstand (nm)",
+      "export_csv": "Download CSV.",
+      "share_csv": "CSV andel",
+      "export_pdf": "Download PDF.",
+      "exporting_pdf": "PDF er genereret...",
+      "photos_title": "Vedhæftede billeder (E2E-krypteret)",
+      "photo_caption_label": "Fotobeskrivelse/etiket (valgfrit)",
+      "photo_caption_placeholder": "f.eks. at sætte sejl nær indsejlingen til havnen",
+      "photo_btn": "Tag foto / upload",
+      "photo_processing": "Er ved at blive behandlet...",
+      "no_photos": "Der er endnu ingen billeder knyttet til denne rejsedag.",
+      "photo_delete_confirm": "Er du sikker på, at du vil slette dette foto permanent?",
+      "confirm_yes": "Ja",
+      "confirm_no": "Nej",
+      "track_upload_title": "GPS-spor (fil)",
+      "track_upload_points": "Point",
+      "gps_tracking_btn_gpx": "Download sporfilen",
+      "gps_track_upload_help": "Træk en GPX-, KML- eller GeoJSON-fil hertil, eller klik for at vælge",
+      "gps_track_upload_btn": "Upload GPS-spor",
+      "gps_track_delete": "Slet sporfilen",
+      "gps_track_delete_confirm": "Er du sikker på, at du vil slette denne sporfil permanent?",
+      "track_distance": "GPS-rute (sm)",
+      "track_speed_max": "Maks. Hastighed (kn)",
+      "track_speed_avg": "Ø Hastighed (kn)",
+      "track_map_title": "GPS-spor på OpenSeaMap",
+      "track_map_start": "Start",
+      "track_map_end": "Mål",
+      "track_map_speed_slow": "langsomt",
+      "track_map_speed_fast": "hurtigt",
+      "track_map_error": "Kortet kunne ikke indlæses.",
+      "exporting": "Eksport...",
+      "share_unsupported": "Deling understøttes ikke på denne enhed. Filen er blevet downloadet i stedet.",
+      "invite_crew": "Inviter besætningen",
+      "invite_link_copied": "Invitationslink kopieret til udklipsholderen!",
+      "invite_link_desc": "Del dette link med besætningsmedlemmer for at give dem skriveadgang til denne logbog.",
+      "collaborators_list": "Medlemmer / besætning",
+      "revoke": "Fjerne",
+      "revoke_confirm": "Er du sikker på, at du vil tilbagekalde dette besætningsmedlems adgang?",
+      "invite_role": "Rolle",
+      "invite_expires": "Linket er gyldigt i 48 timer"
+    },
+    "dashboard": {
+      "title": "Dine logbøger",
+      "subtitle": "Vælg en logbog, eller opret en ny til at styre dine rejser.",
+      "create_btn": "Opret logbog",
+      "new_logbook_placeholder": "Navn på logbog eller yacht",
+      "logout": "Log ud",
+      "logged_in_as": "Logget ind som {{name}}",
+      "delete_confirm": "Er du sikker på, at du vil slette denne logbog permanent? Alle lokale data og serverkopier vil blive destrueret.\n\nTip: Lav en sikkerhedskopi (.daagbok.json) på forhånd under Indstillinger → Sikkerhedskopiering og gendannelse, hvis du vil beholde dataene senere.",
+      "no_logbooks": "Ingen logbøger fundet. Opret din første logbog for at komme i gang!",
+      "loading": "Logbøgerne er fyldt op...",
+      "status_synced": "Synkroniseret",
+      "status_local": "Kun lokal cache",
+      "delete_btn": "Slet logbog",
+      "section_owned": "Mine logbøger",
+      "section_shared": "Fælles logbøger",
+      "section_shared_hint": "Du er blevet inviteret som besætningsmedlem. Skipperprofil og indstillinger tilhører ejeren.",
+      "role_owner": "Egen logbog",
+      "role_owner_hint": "Du er ejer og skipper af denne logbog",
+      "role_crew": "Adgang for besætning",
+      "role_crew_hint": "Inviteret logbog - du kan arbejde som besætning og underskrive den",
+      "role_read": "Læs kun",
+      "role_read_hint": "Opdelt logbog - kun visning, ingen redigering",
+      "open_profile": "Åben profil af {{name}}",
+      "edit_title": "Omdøb logbog",
+      "edit_placeholder": "Nyt navn på logbogen",
+      "edit_success": "Logbog omdøbt med succes",
+      "edit_btn": "Omdøb",
+      "filter_label": "Filtrer logbøger",
+      "filter_placeholder": "Navn, årstal eller dato ...",
+      "filter_clear": "Nulstil filter",
+      "filter_results": "{{count}} Hits",
+      "filter_no_results": "Ingen logbøger matcher din søgning. Prøv med et andet navn eller et andet år.",
+      "sort_label": "Sortere",
+      "sort_by_label": "Sorter efter",
+      "sort_by_name": "Navn",
+      "sort_by_date": "dato",
+      "sort_dir_label": "Sekvens",
+      "sort_asc": "Stigende",
+      "sort_desc": "Nedadgående",
+      "sort_name_asc": "Navn A til Z",
+      "sort_name_desc": "Navn Z til A",
+      "sort_date_asc": "Ældste først",
+      "sort_date_desc": "Nyeste først"
+    },
+    "profile": {
+      "title": "Brugerprofil",
+      "subtitle": "Konto, Passkeys og statistik for {{name}}.",
+      "back": "Tilbage til instrumentbrættet",
+      "loading": "Profilen er ved at blive indlæst...",
+      "load_error": "Profilen kunne ikke indlæses.",
+      "copy_failed": "Kopiering mislykkedes.",
+      "processing": "Er ved at blive behandlet...",
+      "identity_title": "Konto-identitet",
+      "username": "Brugernavn",
+      "user_id": "Bruger-ID",
+      "copy_user_id": "Kopier bruger-ID",
+      "account_since": "Konto siden",
+      "prf_status": "Passkey nøgleafledning (PRF)",
+      "prf_active": "Aktiv",
+      "prf_inactive": "Ikke sat op",
+      "passkeys_title": "Passkeys",
+      "passkeys_desc": "Registrer en separat Passkey på hver enhed. På den måde kan du logge ind, selv når du har skiftet platform.",
+      "passkeys_empty": "Ingen Passkeys fundet.",
+      "add_passkey_btn": "Tilføj ny Passkey.",
+      "add_passkey_success": "Passkey tilføjet med succes.",
+      "add_passkey_failed": "Passkey kunne ikke tilføjes.",
+      "remove_passkey_btn": "Fjern Passkey",
+      "remove_passkey_last_title": "Sidste Passkey.",
+      "remove_passkey_last_desc": "Den eneste Passkey kan ikke fjernes uden at miste adgangen til din konto. Hvis du vil slette kontoen helt, skal du bruge farezonen nederst på denne side.",
+      "remove_passkey_failed": "Passkey kunne ikke fjernes.",
+      "remove_passkey_confirm_title": "Fjern Passkey?",
+      "remove_passkey_confirm_desc": "Denne enhed kan så ikke længere logge ind med denne Passkey.",
+      "remove_passkey_confirm_yes": "Fjerne",
+      "remove_passkey_confirm_no": "Annuller",
+      "pin_title": "Lokal PIN-kode",
+      "pin_status": "Status",
+      "pin_active": "Aktiv på denne enhed",
+      "pin_inactive": "Ikke sat op",
+      "pin_confirm_label": "Bekræft PIN-kode",
+      "pin_confirm_placeholder": "Indtast PIN-kode igen",
+      "pin_set_btn": "Opsæt PIN-kode",
+      "pin_change_btn": "Skift PIN-kode",
+      "pin_remove_btn": "Fjern PIN-kode",
+      "pin_saved": "PIN-kode gemt.",
+      "pin_save_failed": "PIN-koden kunne ikke gemmes.",
+      "pin_mismatch": "PIN-koderne stemmer ikke overens.",
+      "pin_length_error": "PIN-koden skal bestå af mindst 4 tegn.",
+      "pin_no_session": "Sessionen er udløbet - tilmeld dig venligst igen.",
+      "remove_pin_confirm_title": "Fjerne PIN-kode?",
+      "remove_pin_confirm_desc": "Du skal logge ind igen på denne enhed med Passkey eller genoprettelsesnøglen.",
+      "remove_pin_confirm_yes": "Fjern PIN-kode",
+      "remove_pin_confirm_no": "Annuller",
+      "security_title": "Tjekliste for sikkerhed",
+      "security_desc": "Oversigt over de vigtigste beskyttelsesmekanismer for din konto.",
+      "security_passkeys_ok": "Mindst én Passkey registreret",
+      "security_passkeys_missing": "Nej Passkey registreret",
+      "security_prf_ok": "PRF-nøgleafledning aktiv",
+      "security_prf_missing": "PRF ikke sat op",
+      "security_pin_ok": "Lokal PIN-kode på denne enhed",
+      "security_pin_missing": "Ingen lokal PIN-kode",
+      "security_recovery_ok": "Opsætning af genoprettelsesnøgle",
+      "security_recovery_hint": "De 12 ord blev vist under registreringen. Opbevar dem offline og adskilt fra enheden. Du kan oprette en ny nøgle nedenfor - den gamle bliver så ugyldig.",
+      "recovery_rotate_btn": "Opret en ny genoprettelsesnøgle",
+      "recovery_rotate_confirm_title": "Opret en ny genoprettelsesnøgle?",
+      "recovery_rotate_confirm_desc": "Den tidligere nøgle på 12 ord bliver ugyldig med det samme. Sørg for at opbevare den nye nøgle sikkert, før du fortsætter.",
+      "recovery_rotate_confirm_yes": "Opret ny nøgle",
+      "recovery_rotate_confirm_no": "Annuller",
+      "recovery_rotate_new_warning": "VIGTIGT: Skriv disse 12 ord ned, og opbevar dem offline. Den tidligere genoprettelsesnøgle er nu ugyldig.",
+      "recovery_rotate_failed": "Genoprettelsesnøglen kunne ikke oprettes.",
+      "recovery_rotate_no_session": "Krypteringssessionen er udløbet - log ud og log ind igen, og prøv så igen.",
+      "device_title": "Denne enhed",
+      "device_desc": "Lokal cache, synkroniseringsstatus og hurtig login i denne browser.",
+      "device_sync_pending": "{{count}} ventende synkroniseringsposter",
+      "device_sync_ok": "Alle lokale ændringer synkroniseres",
+      "device_remembered": "Konto til hurtigt login gemt på denne enhed",
+      "device_not_remembered": "Kontoen er ikke på listen over hurtige login",
+      "device_forget_btn": "Glemt konto på denne enhed",
+      "device_forget_confirm_title": "Fjerne hurtig login?",
+      "device_forget_confirm_desc": "Kontoen forsvinder fra listen over hurtige login på denne enhed. Din session og dine lokale logbøger bevares.",
+      "device_forget_confirm_yes": "Fjerne",
+      "device_forget_confirm_no": "Annuller",
+      "passkey_label": "Navn på ny Passkey (valgfrit)",
+      "passkey_label_placeholder": "z. f.eks. MacBook, iPhone.",
+      "passkey_rename_btn": "Gem navn",
+      "passkey_rename_success": "Passkey navn gemt.",
+      "passkey_rename_failed": "Passkey-Navnet kunne ikke gemmes.",
+      "passkey_unnamed": "Uden titel Passkey.",
+      "stats_title": "Statistik",
+      "stats_subtitle": "Om alle dine logbøger på denne enhed",
+      "stats_logbooks": "Logbøger",
+      "stats_account_since": "Konto siden",
+      "stats_shared_logbooks": "Fælles logbøger",
+      "appearance_title": "App og visualisering",
+      "appearance_desc": "Designet og farveskemaet gælder for hele appen på denne enhed.",
+      "theme_label": "Appens designstil",
+      "theme_auto": "Automatisk (OS-registrering)",
+      "theme_ocean": "Ocean (glasmorfisme)",
+      "theme_material": "Materiale (Android)",
+      "theme_cupertino": "Cupertino (iOS)",
+      "color_scheme_label": "Lys eller mørk tilstand",
+      "color_scheme_auto": "Automatisk (system)",
+      "color_scheme_light": "Lys",
+      "color_scheme_dark": "Mørk",
+      "integrations_title": "Integrationer",
+      "owm_key": "OpenWeatherMap API-nøgle",
+      "owm_help": "Valgfrit: egen OpenWeatherMap API-nøgle. Hvis der ikke er nogen indtastning, bruges nøglen på serversiden fra operatørkonfigurationen.",
+      "prefs_save": "Gemme",
+      "prefs_saving": "Vil blive reddet...",
+      "prefs_saved": "Gemt",
+      "tour_title": "App-tur",
+      "tour_desc": "Lad dig guide gennem de vigtigste områder i appen igen.",
+      "tour_restart": "Start turen igen",
+      "push_title": "Push-meddelelser",
+      "push_desc": "Som logbogsejer får du besked, når inviterede besætningsmedlemmer synkroniserer ændringer. Intet indhold overføres i ren tekst.",
+      "push_enable": "Giv os besked om ændringer i besætningen",
+      "push_active": "Push-meddelelser er aktive på denne enhed.",
+      "push_unsupported": "Push-meddelelser understøttes ikke i denne browser.",
+      "push_denied_hint": "Notifikationer er blokeret. Tillad dem i browserens eller enhedens indstillinger.",
+      "push_ios_install_hint": "På iPhone/iPad: Føj app til startskærmen (iOS 16.4+) for at bruge push.",
+      "push_error": "Push-meddelelser kunne ikke aktiveres."
+    },
+    "crew": {
+      "title": "Skipper- og besætningsprofiler",
+      "skipper_section": "Skipper-profil",
+      "skipper_read_only_hint": "Skipperprofilen kan kun redigeres af logbogens ejer.",
+      "crew_section": "Besætningsliste",
+      "add_crew": "Tilføj besætningsmedlem",
+      "edit_crew": "Rediger besætningsmedlem",
+      "no_crew": "Ingen besætningsmedlemmer tilføjet endnu.",
+      "max_crew": "Det maksimale antal på 5 besætningsmedlemmer er nået.",
+      "name": "Navn",
+      "address": "adresse",
+      "birthdate": "Fødselsdag",
+      "phone": "Telefonnummer",
+      "nationality": "Nationalitet",
+      "passport": "Pas/ID-nummer",
+      "bloodtype": "Blodgruppe",
+      "allergies": "Allergier",
+      "diseases": "Eksisterende tilstande/sygdomme",
+      "save": "Gem skipper-data",
+      "save_member": "Gem medlem",
+      "saved": "Skipperprofilen er blevet gemt!",
+      "loading": "Besætningsfilerne er indlæst.",
+      "delete_confirm": "Er du sikker på, at du vil fjerne dette besætningsmedlem?"
+    },
+    "deviation": {
+      "title": "Tabel over kompasafvigelser",
+      "subtitle": "Indtast den magnetiske kompasafbøjning (afbøjning) for kurser (MgK) fra 000° til 360° i trin på 10°.",
+      "heading": "MgK",
+      "deviation": "Distraktion",
+      "save": "Gem kalibreringsgitter",
+      "saving": "Vil blive reddet...",
+      "saved": "Kalibreringsgitteret er gemt med succes!",
+      "loading": "Kalibreringstabellen er indlæst..."
+    },
+    "settings": {
+      "title": "Indstillinger for logbog",
+      "subtitle": "Del, tag backup og samarbejd om denne logbog.",
+      "select_logbook_hint": "Vælg en logbog for at redigere dens indstillinger.",
+      "no_key": "Ingen OpenWeatherMap API-nøgle tilgængelig. Gem din egen nøgle i brugerprofilen, eller kontakt operatøren.",
+      "weather_success": "Vejrdata hentet med succes!",
+      "weather_error": "Hentning af vejrdata mislykkedes. Tjek API-nøglen og forbindelsen.",
+      "weather_date_mismatch": "Vejrdata kan kun hentes for i dag ({{today}}). Dette logbogsindlæg er dateret {{date}}.",
+      "gps_error": "Indtast en placering, eller find GPS-koordinaterne.",
+      "share_title": "Del logbog (skrivebeskyttet)",
+      "share_desc": "Aktivér denne mulighed for at oprette et offentligt, skrivebeskyttet link. Alle med linket kan se dine rejser, yachtprofiler og besætning. Krypteringsnøglerne overføres aldrig til serveren (de forbliver i hash-delen af URL'en).",
+      "share_privacy_warning": "Anbefaling: Del kun dette link privat (f.eks. via e-mail eller messenger), ikke på sociale medier.",
+      "share_enable": "Aktivér offentligt link",
+      "share_copied": "Link kopieret!",
+      "share_copy_btn": "Kopier link",
+      "danger_zone_title": "Farezone",
+      "danger_zone_desc": "Når du sletter din konto, slettes alle dine Passkey'er, logbøger, skibsdata, besætningsprofiler, rejseindlæg og E2E-nøgler uigenkaldeligt. Denne handling kan ikke fortrydes.",
+      "delete_account_btn": "Slet konto uigenkaldeligt",
+      "delete_account_confirm_title": "Slette konto?",
+      "delete_account_confirm_desc": "Er du helt sikker på, at du vil slette din konto uigenkaldeligt og alle tilknyttede logbøger og E2E-krypterede data?",
+      "delete_account_confirm_yes": "Ja, slet konto og alle data",
+      "delete_account_confirm_no": "Annuller",
+      "delete_account_failed": "Kontoen kunne ikke slettes. Prøv venligst igen.",
+      "delete_backup_hint": "Tip: Lav sikkerhedskopier af dine logbøger (.daagbok.json) i indstillingerne for hver logbog, før du sletter dem.",
+      "deleting_account": "Kontoen vil blive slettet...",
+      "invite_push_prompt_title": "Aktivere push-meddelelser?",
+      "invite_push_prompt_message": "Så snart inviterede besætningsmedlemmer synkroniserer ændringer, kan du blive informeret via push. Intet logbogsindhold sendes i almindelig tekst.",
+      "invite_push_prompt_ios_message": "Så snart besætningsmedlemmerne synkroniserer ændringer, kan du blive informeret via push. På iPhone/iPad: Føj appen til startskærmen (iOS 16.4+), og aktiver derefter push i brugerprofilen.",
+      "invite_push_prompt_enable": "Aktiver nu",
+      "invite_push_prompt_later": "Senere",
+      "invite_push_prompt_success": "Push-meddelelser er aktive på denne enhed.",
+      "backup_title": "Sikkerhedskopiering og gendannelse",
+      "backup_desc": "Komplet krypteret backup af denne logbog (poster, fotos, GPS-spor, besætning, skib). Beskyttet med backup-passphrase - til gendannelse til denne eller en ny konto.",
+      "backup_export_title": "Opret backup",
+      "backup_export_desc": "Downloader alle lokale data som .daagbok.json. Hold filen og adgangssætningen adskilt og sikker.",
+      "backup_restore_title": "Gendan sikkerhedskopi",
+      "backup_restore_desc": "Gendanner en sikkerhedskopi til din nuværende konto - selv efter registrering af en ny konto.",
+      "backup_passphrase": "Backup-passphrase",
+      "backup_passphrase_placeholder": "Mindst 8 tegn",
+      "backup_passphrase_confirm": "Bekræft adgangssætning",
+      "backup_passphrase_short": "Backup-passphrasen skal være mindst 8 tegn lang.",
+      "backup_passphrase_mismatch": "Passphrases matcher ikke.",
+      "backup_wrong_passphrase": "Passphrase forkert eller backup beskadiget.",
+      "backup_export_btn": "Download backup",
+      "backup_exporting": "Sikkerhedskopien er oprettet...",
+      "backup_export_success": "Backup oprettet ({{count}} rejsedage).",
+      "backup_file_label": "Backup-fil (.daagbok.json)",
+      "backup_preview_btn": "Tjek indhold",
+      "backup_previewing": "Tjek...",
+      "backup_restore_btn": "Gendan",
+      "backup_restoring": "Vil blive restaureret...",
+      "backup_restore_success": "Logbog \"{{title}}\" er blevet gendannet.",
+      "backup_restore_cancelled": "Genopretning aflyst.",
+      "backup_invalid_json": "Filen er ikke en gyldig JSON-fil.",
+      "backup_invalid_format": "Ukendt eller forældet backup-format.",
+      "backup_not_owner": "Kun logbogens ejer kan oprette sikkerhedskopier.",
+      "backup_not_authenticated": "Log ind for at gendanne en sikkerhedskopi.",
+      "backup_id_conflict": "Der findes allerede en logbog med dette ID.",
+      "backup_overwrite_confirm": "Den eksisterende logbog med samme ID erstattes. Fortsætter du?",
+      "backup_new_id_confirm": "Importere backup'en som en ny logbog med et nyt ID?",
+      "backup_stat_entries": "{{count}} Rejsedage",
+      "backup_stat_photos": "{{count}} Fotos",
+      "backup_stat_crew": "{{count}} Besætningens poster",
+      "backup_stat_tracks": "{{count}} GPS-spor",
+      "backup_exported_at": "Eksporteret: {{date}}"
+    },
+    "disclaimer": {
+      "title": "Vigtige bemærkninger",
+      "intro": "Læs venligst følgende instruktioner, før du bruger Kapteins Daagbok.",
+      "e2e_title": "Ende-til-ende-kryptering",
+      "e2e_body": "Dine logbogsdata er krypteret fra ende til anden. Kun du - eller personer med din nøgle - kan læse indholdet. Kun krypterede data gemmes på serveren.",
+      "pwa_title": "Progressiv web-app (PWA)",
+      "pwa_body": "Kapteins Daagbok kører som en progressiv webapp i din browser og kan installeres på din enhed - på samme måde som en native app, men uden en app store.",
+      "storage_title": "Lokal lagring og synkronisering",
+      "storage_body": "Dine data gemmes lokalt på din enhed (IndexedDB). Ændringer synkroniseres med serveren, når en internetforbindelse er aktiv. Du kan arbejde videre uden forbindelse; synkroniseringen finder sted senere.",
+      "free_title": "Gratis og uden reklamer",
+      "free_body": "Kapteins Daagbok er gratis og indeholder ingen reklamer.",
+      "liability_title": "Ansvarsfraskrivelse",
+      "liability_body": "Brug af appen sker på egen risiko. Vi påtager os intet ansvar for skader, der opstår som følge af brugen af appen - herunder forkerte eller ufuldstændige logbogsindførsler, tab af data eller tekniske fejl.",
+      "warranty_title": "Ingen garanti",
+      "warranty_body": "Der gives ingen garanti for tjenestens funktion, korrekthed eller tilgængelighed. Driften kan til enhver tid blive afbrudt, begrænset eller annulleret.",
+      "copyright": "© 2026 KnorrLabs, Markus F.J. Busche",
+      "accept": "Accepter og fortsæt",
+      "close": "Luk",
+      "button_title": "Noter og ansvarsfraskrivelse"
+    },
+    "feedback": {
+      "button_title": "Send feedback",
+      "title": "Feedback",
+      "intro": "Del fejl, ideer eller generel feedback. Din besked vil blive sendt til projektteamet via en sikker meddelelseskanal.",
+      "category_label": "Kategori",
+      "category_general": "Generelt",
+      "category_bug": "Rapporter fejl",
+      "category_feature": "Anmodning om funktion",
+      "category_translation": "Oversættelsesfejl",
+      "contact_label": "E-mail (valgfrit)",
+      "contact_placeholder": "deine@email.beispiel",
+      "message_label": "Besked",
+      "message_placeholder": "Beskriv din feedback...",
+      "send": "Send",
+      "sending": "Vil blive sendt...",
+      "cancel": "Annuller",
+      "success": "Tusind tak skal du have! Din feedback er blevet sendt.",
+      "error_send": "Feedback kunne ikke sendes. Prøv venligst igen senere.",
+      "error_invalid_email": "Indtast venligst en gyldig e-mailadresse.",
+      "error_not_configured": "Feedback er ikke tilgængelig på denne server.",
+      "error_rate_limited": "For mange tilbagemeldinger på kort tid. Vent venligst et par minutter.",
+      "error_spam": "Denne besked kunne ikke sendes. Vær venlig at omformulere den."
+    },
+    "demo": {
+      "logbook_title": "Demo-logbog Østersøen",
+      "badge": "Demo",
+      "public_banner": "Skrivebeskyttet demo-visning",
+      "cta_register": "Opret konto",
+      "back_to_login": "Til registreringen"
+    },
+    "invitation": {
+      "error_invalid_key": "Invitationslinket er kryptografisk ugyldigt (nøglen er forkert).",
+      "error_missing_key": "Invitationslinket indeholder ikke en dekrypteringsnøgle (#key=...). Brug venligst det fulde link fra ejeren.",
+      "error_expired": "Denne invitation er udløbet (gyldig i 48 timer).",
+      "error_invalid_token": "Invitationstokenet er ugyldigt.",
+      "error_load_failed": "Invitationsoplysningerne kunne ikke indlæses.",
+      "error_incomplete_session": "Session ufuldstændig - log venligst ind igen (bruger-ID mangler).",
+      "error_accept_failed": "Tiltrædelse mislykkedes.",
+      "error_login_failed": "Passkey Login mislykkedes.",
+      "error_username_missing": "Brugernavnet kunne ikke bestemmes - log venligst ind igen.",
+      "error_register_failed": "Registrering mislykkedes.",
+      "loading_joining": "At slutte sig til...",
+      "loading_checking": "Invitation vil blive tjekket...",
+      "loading_unlocking": "Logbogen er låst op og synkroniseret...",
+      "loading_retrieving_key": "Download krypteringsnøgle...",
+      "error_title": "Fejl i invitation",
+      "back_to_start": "Tilbage til start",
+      "title": "Invitation til logbog",
+      "invited_by": "Invitation fra",
+      "vessel_logbook": "Skib / Logbog",
+      "signed_in_preparing": "Registreret som {{username}}. Tilslutning er ved at blive forberedt...",
+      "join_again": "Deltag igen",
+      "login_or_register_hint": "Log ind eller opret en konto for at deltage i logbogen.",
+      "or_sign_up": "ELLER REGISTRER DIG IGEN",
+      "register_crew_account": "Opret en ny crew-konto",
+      "username_label": "Brugernavn",
+      "create_passkey": "Opret Passkey.",
+      "switch_language_en": "Engelsk",
+      "switch_language_de": "Tysk"
+    },
+    "stats": {
+      "title": "Statistik",
+      "subtitle": "Overblik over ruter, forbrug og kørselstype",
+      "scope_label": "Evalueringsområde",
+      "scope_logbook": "Denne logbog",
+      "scope_account": "Alle logbøger",
+      "loading": "Statistikkerne er beregnet...",
+      "no_data": "Ingen rejsedage tilgængelige endnu.",
+      "total_distance": "Samlet afstand",
+      "travel_days": "Rejsedage",
+      "sail_distance": "Under sejl",
+      "motor_distance": "Kørsel med maskine",
+      "motor_hours_total": "Samlet antal maskintimer",
+      "daily_motor_hours": "Maskintimer pr. rejsedag",
+      "avg_motor_hours": "Ø maskintimer pr. rejsedag",
+      "unknown_propulsion": "Ukendt",
+      "fuel_total": "Brændstof i alt",
+      "water_total": "Vand i alt",
+      "daily_etmal": "Daglige tider",
+      "daily_consumption": "Dagligt forbrug",
+      "route_overview": "Rute",
+      "route_map_title": "Oversigt over ruter",
+      "propulsion_title": "Sejl vs. maskine",
+      "propulsion_hint": "Opdelingen er baseret på logbogshændelser pr. rejsedag, ikke på GPS-segmenter.",
+      "avg_distance": "Ø pr. rejsedag",
+      "avg_fuel": "Ø Brændstof",
+      "avg_water": "Ø Vand",
+      "fuel_per_nm": "Brændstof pr. sm",
+      "fuel_per_motor_hour": "Brændstof pr. maskintime",
+      "daily_fuel_per_motor_hour": "Brændstofforbrug pr. maskintime pr. rejsedag",
+      "fuel_legend": "Brændstof",
+      "water_legend": "Vand",
+      "unit_nm": "sm",
+      "unit_h": "h",
+      "unit_l": "L",
+      "day_label": "Dag {{day}}",
+      "account_logbooks": "Et overblik over logbøger",
+      "col_logbook": "Logbog"
+    },
+    "tour": {
+      "skip": "Spring turen over",
+      "back": "Tilbage",
+      "next": "Yderligere",
+      "finish": "Klar",
+      "progress": "Trin {{current}} fra {{total}}.",
+      "steps": {
+        "welcome": {
+          "title": "Velkommen om bord!",
+          "body": "Vi har lavet en demo-logbog med tre dages rejse i Kielerfjorden til dig. Du kan til enhver tid slette prøveposterne, hvis du vil starte din egen logbog. Denne korte rundvisning viser dig de vigtigste funktioner."
+        },
+        "welcome_public": {
+          "title": "Velkommen om bord!",
+          "body": "Udforsk vores demo-logbog med tre dages rejse i Kielerfjorden - uden en konto. Denne korte tur viser dig skibsdata, besætning og logbogsposter."
+        },
+        "nav_logs": {
+          "title": "Indlæg i logbogen",
+          "body": "Det er her, du styrer dine rejsedage - afgang, destination, vejr, brændstofniveau og GPS-spor."
+        },
+        "entry_list": {
+          "title": "Dine rejsedage",
+          "body": "Hvert kort repræsenterer en rejsedag. Tryk på en post for at se eller redigere detaljer."
+        },
+        "entry_open": {
+          "title": "Åben rejsedag",
+          "body": "Sådan ser et udfyldt logbogsnotat ud - med begivenheder, tankniveauer og meget mere."
+        },
+        "entry_track": {
+          "title": "GPS-spor",
+          "body": "Upload GPX-filer, eller se allerede gemte ruter på kortet - inklusive afstand og hastighed."
+        },
+        "nav_vessel": {
+          "title": "Skibsdata",
+          "body": "Indtast navn, dimensioner og tekniske data for din yacht - udfyld én gang, tilgængelig for alle rejsedage."
+        },
+        "nav_crew": {
+          "title": "Besætningsliste",
+          "body": "Administrer besætningsmedlemmer og tildel dem rejsedage senere."
+        },
+        "nav_stats": {
+          "title": "Statistik-dashboard",
+          "body": "Her kan du se kørselsafstande, brændstofforbrug, rutekort og kørselsandele - automatisk beregnet ud fra dine logbogsnotater."
+        },
+        "nav_feedback": {
+          "title": "Send feedback",
+          "body": "Du kan bruge denne formular til at sende fejl, ideer eller generel feedback direkte til projektteamet - også efter rundvisningen, når som helst ved hjælp af ikonet øverst til højre."
+        },
+        "nav_profile": {
+          "title": "Din brugerprofil",
+          "body": "Du kan få adgang til din personlige profil via skipperknappen øverst - uanset den aktuelle logbog."
+        },
+        "profile_preferences": {
+          "title": "Regnskab og præsentation",
+          "body": "Her kan du administrere din kontoidentitet, tema og lys/mørk tilstand. Du kan til enhver tid genstarte app-turen. Passkeys og sikkerhedsindstillinger findes længere nede i profilen."
+        },
+        "finish": {
+          "title": "Okay!",
+          "body": "Du vil blive ført direkte til statistikdashboardet. Du kan til enhver tid genstarte turen i din brugerprofil. Hav en god tur!"
+        }
+      }
+    },
+    "seo": {
+      "title": "Kapteins Daagbok - Gratis digital yachtlogbog (reklamefri)",
+      "description": "Gratis, reklamefri digital yachtlogbog med end-to-end-kryptering og Passkey-login. Dokumenter sikkert rejsedage, GPS-spor, besætnings- og skibsdata - også offline som PWA.",
+      "keywords": "Yachtlogbog, skibslogbog, logbog om bord, sejlads, Passkey, E2E-kryptering, GPS-spor, maritim logbog, gratis, reklamefri, gratis, uden reklame",
+      "ogImageAlt": "Kapteins Daagbok Logo"
+    }
+  }
+}

client/src/i18n/locales/de.json

@@ -6,6 +6,13 @@
       "beta": "Beta",
       "beta_hint": "Beta-Version — Funktionen können sich noch ändern"
     },
+    "languages": {
+      "de": "Deutsch",
+      "en": "English",
+      "da": "Dansk",
+      "sv": "Svenska",
+      "nb": "Norsk"
+    },
     "common": {
       "unsaved_changes_title": "Ungespeicherte Änderungen",
       "unsaved_changes_message": "Du hast ungespeicherte Änderungen. Möchtest du die Seite wirklich verlassen? Deine Änderungen gehen verloren.",
@@ -117,7 +124,13 @@
       "no_sails": "Keine Segel hinterlegt.",
       "photo_add": "Foto hinzufügen",
       "photo_change": "Foto ändern",
-      "photo_delete": "Foto löschen"
+      "photo_delete": "Foto löschen",
+      "tanks_section": "Tanks (Fassungsvermögen)",
+      "tanks_help": "Optional in Liter — ermöglicht Slider im Journal bei bekannten Tankgrößen.",
+      "freshwater_capacity_l": "Trinkwasser (Liter)",
+      "fuel_capacity_l": "Treibstoff (Liter)",
+      "greywater_capacity_l": "Grauwasser (Liter)",
+      "invalid_tank_liters": "Ungültiger Zahlenwert — bitte Liter als Zahl eingeben (z. B. 200)."
     },
     "logs": {
       "title": "Logbuch-Journal",
@@ -138,6 +151,10 @@
       "route": "Reise von/nach",
       "freshwater": "Frischwasser (Liter)",
       "fuel": "Treibstoff / Fuel (Liter)",
+      "greywater": "Grauwasser (Liter)",
+      "greywater_level": "Füllstand",
+      "tank_slider_of_max": "{{current}} / {{max}} L",
+      "tank_capacity_tooltip": "Wenn in den Schiffsdaten die Tank-Fassungsvermögen (Liter) hinterlegt sind, kannst du Füllstände hier per Slider eingeben.",
       "morning": "Stand morgens",
       "refilled": "Nachgefüllt",
       "evening": "Stand abends",
@@ -183,7 +200,7 @@
       "delete_entry": "Tag löschen",
       "delete_confirm": "Bist du sicher, dass du diesen Reisetag unwiderruflich löschen möchtest?",
       "carry_over_tanks_title": "Daten vom Vortag übernehmen?",
-      "carry_over_tanks_confirm": "Start-Hafen, Frischwasser- und Kraftstoff-Morgenstände vom letzten Reisetag übernehmen?\n\nStart-Hafen: {{departure}}\nFrischwasser: {{fw}} L\nKraftstoff: {{fuel}} L",
+      "carry_over_tanks_confirm": "Start-Hafen, Frischwasser-, Kraftstoff- und Grauwasser-Startstände vom letzten Reisetag übernehmen?\n\nStart-Hafen: {{departure}}\nFrischwasser: {{fw}} L\nKraftstoff: {{fuel}} L\nGrauwasser: {{greywater}} L",
       "carry_over_tanks_yes": "Übernehmen",
       "carry_over_tanks_no": "Mit 0 starten",
       "event_title": "Chronologisches Ereignisprotokoll",
@@ -294,7 +311,23 @@
       "edit_title": "Logbuch umbenennen",
       "edit_placeholder": "Neuer Name des Logbuchs",
       "edit_success": "Logbuch erfolgreich umbenannt",
-      "edit_btn": "Umbenennen"
+      "edit_btn": "Umbenennen",
+      "filter_label": "Logbücher filtern",
+      "filter_placeholder": "Name, Jahr oder Datum …",
+      "filter_clear": "Filter zurücksetzen",
+      "filter_results": "{{count}} Treffer",
+      "filter_no_results": "Keine Logbücher passen zu deiner Suche. Probiere einen anderen Namen oder ein anderes Jahr.",
+      "sort_label": "Sortieren",
+      "sort_by_label": "Sortieren nach",
+      "sort_by_name": "Name",
+      "sort_by_date": "Datum",
+      "sort_dir_label": "Reihenfolge",
+      "sort_asc": "Aufsteigend",
+      "sort_desc": "Absteigend",
+      "sort_name_asc": "Name A bis Z",
+      "sort_name_desc": "Name Z bis A",
+      "sort_date_asc": "Älteste zuerst",
+      "sort_date_desc": "Neueste zuerst"
     },
     "profile": {
       "title": "Benutzerprofil",
@@ -472,6 +505,12 @@
       "delete_account_failed": "Konto konnte nicht gelöscht werden. Bitte versuche es erneut.",
       "delete_backup_hint": "Tipp: Erstelle vor dem Löschen Backups deiner Logbücher (.daagbok.json) in den Einstellungen jedes Logbuchs.",
       "deleting_account": "Konto wird gelöscht…",
+      "invite_push_prompt_title": "Push-Benachrichtigungen aktivieren?",
+      "invite_push_prompt_message": "Sobald eingeladene Crewmitglieder Änderungen synchronisieren, kannst du per Push informiert werden. Es werden keine Logbuch-Inhalte im Klartext gesendet.",
+      "invite_push_prompt_ios_message": "Sobald Crewmitglieder Änderungen synchronisieren, kannst du per Push informiert werden. Auf dem iPhone/iPad: App zum Home-Bildschirm hinzufügen (iOS 16.4+), dann Push im Benutzerprofil aktivieren.",
+      "invite_push_prompt_enable": "Jetzt aktivieren",
+      "invite_push_prompt_later": "Später",
+      "invite_push_prompt_success": "Push-Benachrichtigungen sind auf diesem Gerät aktiv.",
       "backup_title": "Backup & Wiederherstellung",
       "backup_desc": "Vollständiges verschlüsseltes Backup dieses Logbuchs (Einträge, Fotos, GPS-Tracks, Crew, Schiff). Mit Backup-Passphrase geschützt — für Restore auf diesem oder einem neuen Account.",
       "backup_export_title": "Backup erstellen",
@@ -535,6 +574,7 @@
       "category_general": "Allgemein",
       "category_bug": "Fehler melden",
       "category_feature": "Feature-Wunsch",
+      "category_translation": "Übersetzungsfehler",
       "contact_label": "E-Mail (optional)",
       "contact_placeholder": "deine@email.beispiel",
       "message_label": "Nachricht",

client/src/i18n/locales/en.json

@@ -6,6 +6,13 @@
       "beta": "Beta",
       "beta_hint": "Beta release — features may still change"
     },
+    "languages": {
+      "de": "Deutsch",
+      "en": "English",
+      "da": "Dansk",
+      "sv": "Svenska",
+      "nb": "Norsk"
+    },
     "common": {
       "unsaved_changes_title": "Unsaved changes",
       "unsaved_changes_message": "You have unsaved changes. Leave this page anyway? Your changes will be lost.",
@@ -117,7 +124,13 @@
       "no_sails": "No sails defined.",
       "photo_add": "Add Photo",
       "photo_change": "Change Photo",
-      "photo_delete": "Delete Photo"
+      "photo_delete": "Delete Photo",
+      "tanks_section": "Tanks (capacity)",
+      "tanks_help": "Optional, in liters — enables sliders in the journal when tank sizes are known.",
+      "freshwater_capacity_l": "Freshwater (liters)",
+      "fuel_capacity_l": "Fuel (liters)",
+      "greywater_capacity_l": "Greywater (liters)",
+      "invalid_tank_liters": "Invalid number — please enter capacity in liters (e.g. 200)."
     },
     "logs": {
       "title": "Logbook Journal",
@@ -138,6 +151,10 @@
       "route": "Route / Journey",
       "freshwater": "Freshwater (Liters)",
       "fuel": "Fuel (Liters)",
+      "greywater": "Greywater (Liters)",
+      "greywater_level": "Fill level",
+      "tank_slider_of_max": "{{current}} / {{max}} L",
+      "tank_capacity_tooltip": "If tank capacities (liters) are set in vessel master data, you can enter fill levels here using sliders.",
       "morning": "Morning Level",
       "refilled": "Refilled",
       "evening": "Evening Level",
@@ -183,7 +200,7 @@
       "delete_entry": "Delete Day",
       "delete_confirm": "Are you sure you want to permanently delete this travel day?",
       "carry_over_tanks_title": "Carry over from previous day?",
-      "carry_over_tanks_confirm": "Use the previous travel day's destination as departure port and closing tank levels as morning levels?\n\nDeparture port: {{departure}}\nFreshwater: {{fw}} L\nFuel: {{fuel}} L",
+      "carry_over_tanks_confirm": "Use the previous travel day's destination as departure port and closing tank levels as morning levels?\n\nDeparture port: {{departure}}\nFreshwater: {{fw}} L\nFuel: {{fuel}} L\nGreywater: {{greywater}} L",
       "carry_over_tanks_yes": "Carry over",
       "carry_over_tanks_no": "Start at 0",
       "event_title": "Chronological Event Logbook",
@@ -294,7 +311,23 @@
       "edit_title": "Rename Logbook",
       "edit_placeholder": "New name of the logbook",
       "edit_success": "Logbook renamed successfully",
-      "edit_btn": "Rename"
+      "edit_btn": "Rename",
+      "filter_label": "Filter logbooks",
+      "filter_placeholder": "Name, year or date …",
+      "filter_clear": "Clear filter",
+      "filter_results": "{{count}} matches",
+      "filter_no_results": "No logbooks match your search. Try a different name or year.",
+      "sort_label": "Sort",
+      "sort_by_label": "Sort by",
+      "sort_by_name": "Name",
+      "sort_by_date": "Date",
+      "sort_dir_label": "Order",
+      "sort_asc": "Ascending",
+      "sort_desc": "Descending",
+      "sort_name_asc": "Name A to Z",
+      "sort_name_desc": "Name Z to A",
+      "sort_date_asc": "Oldest first",
+      "sort_date_desc": "Newest first"
     },
     "profile": {
       "title": "User profile",
@@ -472,6 +505,12 @@
       "delete_account_failed": "Failed to delete account. Please try again.",
       "delete_backup_hint": "Tip: Before deleting, create backups of your logbooks (.daagbok.json) in each logbook's settings.",
       "deleting_account": "Deleting account…",
+      "invite_push_prompt_title": "Enable push notifications?",
+      "invite_push_prompt_message": "When invited crew members sync changes, you can be notified via push. No logbook content is sent in plain text.",
+      "invite_push_prompt_ios_message": "When crew members sync changes, you can get push notifications. On iPhone/iPad: add the app to your Home Screen (iOS 16.4+), then enable push in your user profile.",
+      "invite_push_prompt_enable": "Enable now",
+      "invite_push_prompt_later": "Later",
+      "invite_push_prompt_success": "Push notifications are active on this device.",
       "backup_title": "Backup & restore",
       "backup_desc": "Full encrypted backup of this logbook (entries, photos, GPS tracks, crew, vessel). Protected with a backup passphrase — restore on this or a new account.",
       "backup_export_title": "Create backup",
@@ -535,6 +574,7 @@
       "category_general": "General",
       "category_bug": "Bug report",
       "category_feature": "Feature request",
+      "category_translation": "Translation error",
       "contact_label": "Email (optional)",
       "contact_placeholder": "your@email.example",
       "message_label": "Message",

client/src/i18n/locales/nb.json

@@ -0,0 +1,736 @@
+{
+  "translation": {
+    "app": {
+      "name": "Kapteins Daagbok",
+      "tagline": "Loggbok for private båter",
+      "beta": "Beta",
+      "beta_hint": "Betaversjon - funksjoner kan fortsatt endres"
+    },
+    "languages": {
+      "de": "Deutsch",
+      "en": "English",
+      "da": "Dansk",
+      "sv": "Svenska",
+      "nb": "Norsk"
+    },
+    "common": {
+      "unsaved_changes_title": "Ikke-lagrede endringer",
+      "unsaved_changes_message": "Du har endringer som ikke er lagret. Vil du virkelig forlate siden? Endringene dine vil gå tapt.",
+      "unsaved_changes_leave": "Oppgivelse",
+      "unsaved_changes_stay": "Bli"
+    },
+    "nav": {
+      "dashboard": "Dashbord",
+      "vessel": "Skipsdata",
+      "crew": "Mannskapsliste",
+      "deviation": "Tabell over distraksjoner",
+      "logs": "Loggbokoppføringer",
+      "stats": "Statistikk",
+      "settings": "Innstillinger"
+    },
+    "auth": {
+      "welcome": "Velkommen til Kapteins Daagbok",
+      "tagline": "Din sikre, E2E-krypterte maritime loggbok.",
+      "register": "Registrer deg med Passkey",
+      "login": "Logg inn med Passkey",
+      "login_as": "Logg inn som {{name}}",
+      "quick_login": "Rask innlogging",
+      "forget_account": "Glemt konto på denne enheten",
+      "not_user": "Ikke {{name}}?",
+      "recovery_title": "Gjenopprettingsnøkkelen din",
+      "recovery_warning": "VIKTIG: Skriv ned disse 12 ordene. Hvis du mister Passkey og disse ordene, kan du ikke gjenopprette dataene dine.",
+      "confirm_recovery": "Jeg har skrevet ned ordene",
+      "status_logged_in": "Innlogget",
+      "status_logged_out": "Avlyst",
+      "copied": "Oppfattet!",
+      "copy_phrase": "Kopieringstast",
+      "enter_recovery": "Skriv inn gjenopprettingsnøkkel",
+      "recovery_fallback_warning": "Din Passkey har blitt autentisert, men enheten din støtter ikke maskinvarebasert nøkkelderivering. Skriv inn gjenopprettingsnøkkelen på 12 ord for å dekryptere loggboken.",
+      "recovery_placeholder": "Skriv inn gjenopprettingsnøkkelen din, som består av 12 ord atskilt med mellomrom...",
+      "back": "Tilbake",
+      "decrypting": "Dekryptering...",
+      "decrypt_logbook": "Dekryptere loggbok",
+      "error_incorrect_recovery": "Feil gjenopprettingsnøkkel. Dekryptering mislyktes.",
+      "error_decryption_failed": "Dekryptering mislyktes. Vennligst sjekk gjenopprettingsnøkkelen din.",
+      "or_register": "eller registrer deg",
+      "explore_demo": "Utforsk demoen uten konto",
+      "username_placeholder": "Brukernavn / Skippernavn",
+      "processing": "Behandling...",
+      "help": "Hjelp",
+      "setup_pin_title": "Konfigurer lokal PIN-kode (valgfritt)",
+      "setup_pin_warning": "Siden enheten din ikke støtter direkte Passkey-nøkkelavledning, må du ellers skrive inn 12-ordsnøkkelen hver gang du logger deg på denne enheten. Konfigurer en lokal PIN-kode for å unngå dette.",
+      "pin_placeholder": "E.G. 123456",
+      "pin_label": "Lokal PIN-kode (4-8 sifre)",
+      "save_pin": "Lagre PIN-kode og fortsett",
+      "skip_pin": "Hopp over og bruk gjenoppretting",
+      "enter_pin_title": "Dekrypter med PIN-kode",
+      "enter_pin_warning": "Skriv inn din lokale PIN-kode for å låse opp dekrypteringsnøkkelen på denne enheten.",
+      "enter_pin_placeholder": "Tast inn PIN-koden din...",
+      "decrypt_with_pin": "Dekryptere",
+      "use_recovery_instead": "Bruk gjenopprettingsnøkler i stedet",
+      "error_incorrect_pin": "Feil PIN-kode. Dekryptering mislyktes."
+    },
+    "pwa": {
+      "title": "Installer app",
+      "generic_benefit": "Installer Kapteins Daagbok på enheten din for raskere tilgang, frakoblet bruk og permanent lagring av data.",
+      "ios_instructions": "På iPad/iPhone: Legg til appen på startskjermen, slik at loggbokdataene dine forblir beskyttet og appen starter som en vanlig app.",
+      "ios_step_share": "Trykk på aksjesymbolet i Safari-linjen",
+      "ios_step_add": "Velg \"Gå til startskjermen\"",
+      "install_now": "Installer nå",
+      "installing": "Installasjon...",
+      "later": "Senere",
+      "never": "Ikke vis mer",
+      "platform_ios": "Installasjon via Safari",
+      "platform_android": "Installasjon via nettleseren",
+      "platform_desktop": "Installasjon som en desktop-app",
+      "settings_section": "Installasjon av app",
+      "update_title": "Oppdatering tilgjengelig",
+      "update_desc": "En ny versjon av Kapteins Daagbok er klar. Oppdater for å få med de siste endringene.",
+      "update_now": "Oppdater nå",
+      "update_reloading": "Laster..."
+    },
+    "sync": {
+      "status_synced": "Synkronisert",
+      "status_syncing": "Synkroniser...",
+      "status_offline": "Frakoblet hurtigbuffer",
+      "status_unsynced": "Usynkroniserte endringer"
+    },
+    "vessel": {
+      "title": "Stamdata for skip",
+      "name": "Båtens navn",
+      "type": "Båttype",
+      "type_unset": "- ikke spesifisert -",
+      "type_sailing": "Seilbåt",
+      "type_motor": "Motorbåt",
+      "length_m": "Lengde (m)",
+      "draft_m": "Trekkraft (m)",
+      "air_draft_m": "Høyde (m)",
+      "invalid_metric": "Ugyldig tallverdi - angi meter som desimaltall (f.eks. 12,5).",
+      "port": "Hjemmehavn",
+      "owner": "Eier",
+      "charter": "Charterselskap",
+      "registration": "Nummerskilt/registreringsnummer",
+      "callsign": "Radiokallesignal",
+      "atis": "ATIS nr.",
+      "mmsi": "MMSI-nr.",
+      "save": "Lagre skipsdata",
+      "saving": "...vil bli reddet...",
+      "saved": "Skipsdata vellykket lagret!",
+      "loading": "Skipsdata er lastet inn...",
+      "sails_list": "Seil (eksisterende seil)",
+      "sails_help": "Skriv inn seilene som er tilgjengelige på båten din her (f.eks. storseil, genua, fokk).",
+      "add_sail": "Legg til seil",
+      "sail_name_placeholder": "z. f.eks. storseil",
+      "no_sails": "Ingen seil lagret.",
+      "photo_add": "Legg til bilde",
+      "photo_change": "Endre bilde",
+      "photo_delete": "Slett bilde",
+      "tanks_section": "Tanker (kapasitet)",
+      "tanks_help": "Valgfritt i liter - muliggjør glidebryter i tidsskriftet for kjente tankstørrelser.",
+      "freshwater_capacity_l": "Drikkevann (liter)",
+      "fuel_capacity_l": "Drivstoff (liter)",
+      "greywater_capacity_l": "Gråvann (liter)",
+      "invalid_tank_liters": "Ugyldig tallverdi - skriv inn liter som et tall (f.eks. 200)."
+    },
+    "logs": {
+      "title": "Loggbokdagbok",
+      "new_entry": "Ny reisedag",
+      "travel_details": "Detaljer om reisen",
+      "add_event": "Legg til ny loggbokoppføring",
+      "add_event_btn": "Legg til hendelse",
+      "edit_event": "Rediger hendelse",
+      "save_event_btn": "Lagre endring",
+      "cancel_event_edit": "Avbryt",
+      "delete_event": "Slett hendelse",
+      "sign_cleared_skipper_re_sign_title": "Skippers signatur fjernet",
+      "sign_cleared_skipper_re_sign": "Hendelsesloggen har blitt endret. Skipperens signatur er fjernet. Vennligst godkjenn på nytt.",
+      "date": "dato",
+      "day_of_travel": "Reisens dag / reisedag",
+      "departure": "Starthavn (reise fra)",
+      "destination": "Destinasjonsport (til)",
+      "route": "Reise fra/til",
+      "freshwater": "Ferskvann (liter)",
+      "fuel": "Drivstoff / Drivstoff (liter)",
+      "greywater": "Gråvann (liter)",
+      "greywater_level": "Fyllingsnivå",
+      "tank_slider_of_max": "{{current}} / {{max}} L",
+      "tank_capacity_tooltip": "Hvis tankkapasiteten (liter) er lagret i skipsdataene, kan du angi fyllingsnivåene her ved hjelp av glidebryteren.",
+      "morning": "Stå opp om morgenen",
+      "refilled": "Påfyllt",
+      "evening": "Kveldsstand",
+      "consumption": "Daglig forbruk",
+      "signatures": "Underskrifter / frigivelse",
+      "sign_skipper": "Skippers signatur",
+      "sign_crew": "Mannskapets signatur",
+      "sign_hint": "Signer med finger, penn eller mus",
+      "sign_clear": "Slett",
+      "sign_export_image": "[Signatur]",
+      "sign_with_passkey": "Utgivelse med Passkey",
+      "sign_passkey_signing": "Passkey er forespurt...",
+      "sign_passkey_signed": "Utgitt av {{username}}",
+      "sign_passkey_export": "Passkey: {{username}} ({{date}})",
+      "sign_attribution_export": "{{username}} ({{date}})",
+      "sign_passkey_clear": "Fjern Passkey utgivelse",
+      "sign_mode_passkey": "Passkey",
+      "sign_mode_classic": "Klassisk",
+      "sign_passkey_failed": "Passkey Utgivelsen mislyktes",
+      "sign_passkey_cancelled": "Passkey Utgivelse kansellert",
+      "sign_invalid": "Signaturen er ugyldig - innholdet har blitt endret",
+      "sign_badge_skipper": "Skipper",
+      "sign_badge_skipper_invalid": "Ugyldig",
+      "sign_badge_skipper_title_valid": "Skipper har gitt ut",
+      "sign_badge_skipper_title_invalid": "Skippersignaturen er ugyldig - innholdet har blitt endret",
+      "sign_classic_or_passkey": "Valgfritt: klassisk signatur eller Passkey utgivelse ovenfor",
+      "sign_crew_passkey_hint": "Besetningsmedlemmer med skrivetilgang kan frigjøre via Passkey.",
+      "sign_offline_hint": "Passkey-Godkjenning krever Internett - klassisk signatur mulig offline",
+      "sign_lock_notice": "Etter signering er det ikke mulig å gjøre endringer i loggbokoppføringen (unntatt bilder) uten at skipper og mannskap må signere på nytt.",
+      "sign_lock_active": "Denne oppføringen er signert. Endringer i loggboken (unntatt bilder) fjerner automatisk skipperens og mannskapets signaturer.",
+      "sign_lock_warning_title": "Bekreft signatur",
+      "sign_lock_warning": "Etter signering er det ikke lenger mulig å gjøre endringer i loggbokoppføringen (unntatt bilder) uten at skipper og mannskap må signere på nytt.\n\nØnsker du å fortsette?",
+      "sign_proceed": "Skilt",
+      "sign_cancel": "Avbryt",
+      "sign_cleared_re_sign_title": "Signaturer fjernet",
+      "sign_cleared_re_sign": "Loggbokoppføringen har blitt endret. Skipperens og mannskapets signaturer er fjernet. Vennligst signer på nytt.",
+      "no_entries": "Ingen loggbokoppføringer funnet for denne båten. Lag din første seilasdag!",
+      "back_to_list": "Tilbake til tidsskriftlisten",
+      "save": "Lagre loggbokside",
+      "saving": "...vil bli reddet...",
+      "saved": "Loggboksiden er vellykket lagret!",
+      "loading": "Tidsskriftet lastes inn...",
+      "delete_entry": "Slett tagg",
+      "delete_confirm": "Er du sikker på at du vil slette denne reisedagen permanent?",
+      "carry_over_tanks_title": "Overføre data fra dagen før?",
+      "carry_over_tanks_confirm": "Overta starthavn, ferskvann, drivstoff og gråvann fra startnivåene fra siste dag på turen?\n\nStart havn: {{departure}}\nFerskvann: {{fw}} L\nDrivstoff: {{fuel}} L\nGråvann: {{greywater}} L",
+      "carry_over_tanks_yes": "Ta over",
+      "carry_over_tanks_no": "Begynn med 0",
+      "event_title": "Kronologisk hendelseslogg",
+      "no_events": "Ingen arrangementer lagt inn for denne reisedagen ennå.",
+      "event_time": "Tid på døgnet",
+      "event_mgk": "MgK-kurs",
+      "event_rwk": "RwK-kurs",
+      "event_course_section": "Kurs",
+      "course_dial_hint": "Vri ringen eller angi grader",
+      "course_dial_step_label": "Trinnstørrelse",
+      "course_step_fine": "1°",
+      "course_step_medium": "5°",
+      "course_step_coarse": "10°",
+      "course_tab_mgk": "MgK",
+      "course_tab_rwk": "rwK",
+      "course_invalid": "Ugyldig kurs (0-360)",
+      "course_placeholder_degrees": "z. B. 180",
+      "course_placeholder_cardinal": "z. E.G. NW",
+      "compass_n": "N",
+      "compass_e": "O",
+      "compass_s": "S",
+      "compass_w": "W",
+      "wind_mode_cardinal": "Kardinal",
+      "wind_mode_degrees": "Som grad",
+      "event_wind_direction": "Vindretning",
+      "event_wind_strength": "Vindstyrke",
+      "event_sea_state": "Havets tilstand",
+      "event_weather": "Været",
+      "event_log": "Logg (sm)",
+      "event_gps": "GPS-posisjon",
+      "event_location": "Sted / havn",
+      "event_location_placeholder": "z. f.eks. Kiel",
+      "event_remarks": "Merknader / hendelser",
+      "gps_btn": "Hent GPS-koordinater",
+      "weather_btn": "OpenWeatherMap Ring opp været",
+      "event_wind_pressure": "Lufttrykk (hPa)",
+      "event_heel": "Helning (°)",
+      "event_sails": "Seilhåndtering / motor",
+      "motor_propulsion": "Maskinreise",
+      "sails_picker_show_more": "Vis alle seil",
+      "sails_picker_show_less": "Vis mindre",
+      "motor_hours": "Maskintimer (totalt)",
+      "fuel_per_motor_hour": "Forbruk per maskintime",
+      "event_distance": "Avstand (sm)",
+      "export_csv": "Last ned CSV",
+      "share_csv": "CSV andel",
+      "export_pdf": "Last ned PDF",
+      "exporting_pdf": "PDF genereres...",
+      "photos_title": "Bildevedlegg (E2E-kryptert)",
+      "photo_caption_label": "Fotobeskrivelse/etikett (valgfritt)",
+      "photo_caption_placeholder": "f.eks. å sette seil nær innseilingen til havnen",
+      "photo_btn": "Ta bilde / last opp",
+      "photo_processing": "...blir behandlet...",
+      "no_photos": "Ingen bilder knyttet til denne reisedagen ennå.",
+      "photo_delete_confirm": "Er du sikker på at du vil slette dette bildet permanent?",
+      "confirm_yes": "Ja",
+      "confirm_no": "Nei",
+      "track_upload_title": "GPS-sporing (fil)",
+      "track_upload_points": "Poeng",
+      "gps_tracking_btn_gpx": "Last ned sporfil",
+      "gps_track_upload_help": "Dra en GPX-, KML- eller GeoJSON-fil hit, eller klikk for å velge",
+      "gps_track_upload_btn": "Last opp GPS-spor",
+      "gps_track_delete": "Slett sporfil",
+      "gps_track_delete_confirm": "Er du sikker på at du vil slette denne sporfilen permanent?",
+      "track_distance": "GPS-rute (sm)",
+      "track_speed_max": "Maks. Hastighet (kn)",
+      "track_speed_avg": "Ø Hastighet (kn)",
+      "track_map_title": "GPS-spor på OpenSeaMap",
+      "track_map_start": "Start",
+      "track_map_end": "Mål",
+      "track_map_speed_slow": "langsomt",
+      "track_map_speed_fast": "raskt",
+      "track_map_error": "Kartet kunne ikke lastes inn.",
+      "exporting": "Eksport...",
+      "share_unsupported": "Deling støttes ikke på denne enheten. Filen har blitt lastet ned i stedet.",
+      "invite_crew": "Inviter mannskapet",
+      "invite_link_copied": "Invitasjonslenke kopiert til utklippstavlen!",
+      "invite_link_desc": "Del denne lenken med besetningsmedlemmene for å gi dem skrivetilgang til loggboken.",
+      "collaborators_list": "Medlemmer / Besetning",
+      "revoke": "Fjern",
+      "revoke_confirm": "Er du sikker på at du vil oppheve dette besetningsmedlemmets tilgang?",
+      "invite_role": "Rolle",
+      "invite_expires": "Lenken er gyldig i 48 timer"
+    },
+    "dashboard": {
+      "title": "Loggbøkene dine",
+      "subtitle": "Velg en loggbok eller opprett en ny for å administrere reisene dine.",
+      "create_btn": "Opprett loggbok",
+      "new_logbook_placeholder": "Navn på loggboken eller båten",
+      "logout": "Logg ut",
+      "logged_in_as": "Innlogget som {{name}}",
+      "delete_confirm": "Er du sikker på at du vil slette denne loggboken permanent? Alle lokale data og serverkopier vil bli ødelagt.\n\nTips: Lag en sikkerhetskopi (.daagbok.json) på forhånd under Innstillinger → Sikkerhetskopiering og gjenoppretting hvis du ønsker å beholde dataene senere.",
+      "no_logbooks": "Ingen loggbøker funnet. Opprett din første loggbok for å komme i gang!",
+      "loading": "Loggbøker er lastet...",
+      "status_synced": "Synkronisert",
+      "status_local": "Kun lokal hurtigbuffer",
+      "delete_btn": "Slett loggbok",
+      "section_owned": "Loggbøkene mine",
+      "section_shared": "Felles loggbøker",
+      "section_shared_hint": "Du er invitert som besetningsmedlem. Skipperprofil og innstillinger tilhører eieren.",
+      "role_owner": "Egen loggbok",
+      "role_owner_hint": "Du er eier og skipper av denne loggboken",
+      "role_crew": "Tilgang for mannskapet",
+      "role_crew_hint": "Loggbok med invitasjon - du kan jobbe som mannskap og signere den",
+      "role_read": "Bare les",
+      "role_read_hint": "Delt loggbok - kun visning, ingen redigering",
+      "open_profile": "Åpne profilen til {{name}}",
+      "edit_title": "Endre navn på loggbok",
+      "edit_placeholder": "Nytt navn på loggboken",
+      "edit_success": "Loggboken har fått nytt navn",
+      "edit_btn": "Gi nytt navn",
+      "filter_label": "Filtrer loggbøker",
+      "filter_placeholder": "Navn, årstall eller dato ...",
+      "filter_clear": "Tilbakestill filter",
+      "filter_results": "{{count}} Treff",
+      "filter_no_results": "Ingen loggbøker samsvarer med søket ditt. Prøv et annet navn eller et annet år.",
+      "sort_label": "Sortere",
+      "sort_by_label": "Sorter etter",
+      "sort_by_name": "Navn",
+      "sort_by_date": "dato",
+      "sort_dir_label": "Sekvens",
+      "sort_asc": "Stigende",
+      "sort_desc": "Synkende",
+      "sort_name_asc": "Navn A til Å",
+      "sort_name_desc": "Navn Z til A",
+      "sort_date_asc": "Eldst først",
+      "sort_date_desc": "Nyeste først"
+    },
+    "profile": {
+      "title": "Brukerprofil",
+      "subtitle": "Regnskap, Passkeys og statistikk for {{name}}.",
+      "back": "Tilbake til dashbordet",
+      "loading": "Profilen lastes inn...",
+      "load_error": "Profilen kunne ikke lastes inn.",
+      "copy_failed": "Kopien mislyktes.",
+      "processing": "Blir behandlet...",
+      "identity_title": "Kontoidentitet",
+      "username": "Brukernavn",
+      "user_id": "Bruker-ID",
+      "copy_user_id": "Kopier bruker-ID",
+      "account_since": "Konto siden",
+      "prf_status": "Passkey nøkkelavledning (PRF)",
+      "prf_active": "Aktiv",
+      "prf_inactive": "Ikke satt opp",
+      "passkeys_title": "Passkeys",
+      "passkeys_desc": "Registrer en separat Passkey på hver enhet. Dette gjør at du kan logge på selv etter at du har byttet plattform.",
+      "passkeys_empty": "Ingen Passkeyer funnet.",
+      "add_passkey_btn": "Legg til ny Passkey",
+      "add_passkey_success": "Passkey vellykket lagt til.",
+      "add_passkey_failed": "Passkey kunne ikke legges til.",
+      "remove_passkey_btn": "Fjern Passkey",
+      "remove_passkey_last_title": "Sist Passkey",
+      "remove_passkey_last_desc": "Den eneste Passkey kan ikke fjernes uten at du mister tilgangen til kontoen din. For å slette kontoen helt, bruk faresonen nederst på denne siden.",
+      "remove_passkey_failed": "Passkey kunne ikke fjernes.",
+      "remove_passkey_confirm_title": "Fjern Passkey?",
+      "remove_passkey_confirm_desc": "Denne enheten kan da ikke lenger logge inn med denne Passkey.",
+      "remove_passkey_confirm_yes": "Fjern",
+      "remove_passkey_confirm_no": "Avbryt",
+      "pin_title": "Lokal PIN-kode",
+      "pin_status": "Status",
+      "pin_active": "Aktiv på denne enheten",
+      "pin_inactive": "Ikke satt opp",
+      "pin_confirm_label": "Bekreft PIN-kode",
+      "pin_confirm_placeholder": "Tast inn PIN-koden på nytt",
+      "pin_set_btn": "Konfigurer PIN-kode",
+      "pin_change_btn": "Endre PIN-kode",
+      "pin_remove_btn": "Fjern PIN-kode",
+      "pin_saved": "PIN-kode lagret.",
+      "pin_save_failed": "PIN-koden kunne ikke lagres.",
+      "pin_mismatch": "PIN-kodene stemmer ikke overens.",
+      "pin_length_error": "PIN-koden må bestå av minst 4 tegn.",
+      "pin_no_session": "Økten er utløpt - vennligst registrer deg på nytt.",
+      "remove_pin_confirm_title": "Fjerne PIN-kode?",
+      "remove_pin_confirm_desc": "Du må logge på igjen på denne enheten med Passkey eller gjenopprettingsnøkkel.",
+      "remove_pin_confirm_yes": "Fjern PIN-kode",
+      "remove_pin_confirm_no": "Avbryt",
+      "security_title": "Sjekkliste for sikkerhet",
+      "security_desc": "Oversikt over de viktigste beskyttelsesmekanismene for kontoen din.",
+      "security_passkeys_ok": "Minst én Passkey registrert",
+      "security_passkeys_missing": "Nei Passkey registrert",
+      "security_prf_ok": "PRF-nøkkelavledning aktiv",
+      "security_prf_missing": "PRF ikke satt opp",
+      "security_pin_ok": "Lokal PIN-kode på denne enheten",
+      "security_pin_missing": "Ingen lokal PIN-kode",
+      "security_recovery_ok": "Oppsett av gjenopprettingsnøkkel",
+      "security_recovery_hint": "De 12 ordene ble vist under registreringen. Oppbevar dem frakoblet og adskilt fra enheten. Du kan opprette en ny nøkkel nedenfor - den gamle blir da ugyldig.",
+      "recovery_rotate_btn": "Opprett en ny gjenopprettingsnøkkel",
+      "recovery_rotate_confirm_title": "Opprette en ny gjenopprettingsnøkkel?",
+      "recovery_rotate_confirm_desc": "Den forrige 12-ordsnøkkelen blir ugyldig umiddelbart. Sørg for at du oppbevarer den nye nøkkelen trygt før du fortsetter.",
+      "recovery_rotate_confirm_yes": "Opprett ny nøkkel",
+      "recovery_rotate_confirm_no": "Avbryt",
+      "recovery_rotate_new_warning": "VIKTIG: Skriv ned disse 12 ordene og oppbevar dem offline. Den forrige gjenopprettingsnøkkelen er nå ugyldig.",
+      "recovery_rotate_failed": "Gjenopprettingsnøkkel kunne ikke opprettes.",
+      "recovery_rotate_no_session": "Krypteringsøkten er utløpt - logg ut og logg inn igjen, og prøv deretter på nytt.",
+      "device_title": "Denne enheten",
+      "device_desc": "Lokal hurtigbuffer, synkroniseringsstatus og hurtigpålogging i denne nettleseren.",
+      "device_sync_pending": "{{count}} ventende synkroniseringsoppføringer",
+      "device_sync_ok": "Alle lokale endringer synkroniseres",
+      "device_remembered": "Konto for hurtiginnlogging lagret på denne enheten",
+      "device_not_remembered": "Kontoen er ikke i hurtiginnloggingslisten",
+      "device_forget_btn": "Glemt konto på denne enheten",
+      "device_forget_confirm_title": "Fjerne hurtiginnlogging?",
+      "device_forget_confirm_desc": "Kontoen forsvinner fra hurtiginnloggingslisten på denne enheten. Økten og de lokale loggbøkene beholdes.",
+      "device_forget_confirm_yes": "Fjern",
+      "device_forget_confirm_no": "Avbryt",
+      "passkey_label": "Navn på ny Passkey (valgfritt)",
+      "passkey_label_placeholder": "z. f.eks. MacBook, iPhone",
+      "passkey_rename_btn": "Lagre navn",
+      "passkey_rename_success": "Passkey navn lagret.",
+      "passkey_rename_failed": "Passkey-Navn kunne ikke lagres.",
+      "passkey_unnamed": "Uten tittel Passkey",
+      "stats_title": "Statistikk",
+      "stats_subtitle": "Om alle loggbøkene dine på denne enheten",
+      "stats_logbooks": "Loggbøker",
+      "stats_account_since": "Konto siden",
+      "stats_shared_logbooks": "Felles loggbøker",
+      "appearance_title": "App og visualisering",
+      "appearance_desc": "Designet og fargevalget gjelder for hele appen på denne enheten.",
+      "theme_label": "Appens designstil",
+      "theme_auto": "Automatisk (OS-deteksjon)",
+      "theme_ocean": "Ocean (glassmorfisme)",
+      "theme_material": "Materiale (Android)",
+      "theme_cupertino": "Cupertino (iOS)",
+      "color_scheme_label": "Lys eller mørk modus",
+      "color_scheme_auto": "Automatisk (system)",
+      "color_scheme_light": "Lys",
+      "color_scheme_dark": "Mørk",
+      "integrations_title": "Integrasjoner",
+      "owm_key": "OpenWeatherMap API-nøkkel",
+      "owm_help": "Valgfritt: egen OpenWeatherMap API-nøkkel. Hvis ingen oppføring er gjort, brukes serverside-nøkkelen fra operatørkonfigurasjonen.",
+      "prefs_save": "Spar",
+      "prefs_saving": "...vil bli reddet...",
+      "prefs_saved": "Reddet",
+      "tour_title": "App-tur",
+      "tour_desc": "La deg veilede gjennom de viktigste områdene i appen på nytt.",
+      "tour_restart": "Start turen på nytt",
+      "push_title": "Push-varsler",
+      "push_desc": "Som loggbokseier vil du bli varslet når inviterte besetningsmedlemmer synkroniserer endringer. Ingen innhold overføres i ren tekst.",
+      "push_enable": "Gi oss beskjed om endringer i mannskapet",
+      "push_active": "Push-varsler er aktive på denne enheten.",
+      "push_unsupported": "Push-varsler støttes ikke i denne nettleseren.",
+      "push_denied_hint": "Varsler er blokkert. Tillat dem i innstillingene i nettleseren eller på enheten.",
+      "push_ios_install_hint": "På iPhone/iPad: Legg til app på startskjermen (iOS 16.4+) for å bruke push.",
+      "push_error": "Push-varsler kunne ikke aktiveres."
+    },
+    "crew": {
+      "title": "Skipper- og mannskapsprofiler",
+      "skipper_section": "Skipperprofil",
+      "skipper_read_only_hint": "Skipperprofilen kan bare redigeres av eieren av loggboken.",
+      "crew_section": "Mannskapsliste",
+      "add_crew": "Legg til besetningsmedlem",
+      "edit_crew": "Rediger besetningsmedlem",
+      "no_crew": "Ingen besetningsmedlemmer er lagt til ennå.",
+      "max_crew": "Maksimalt antall på 5 besetningsmedlemmer er nådd.",
+      "name": "Navn",
+      "address": "adresse",
+      "birthdate": "Bursdag",
+      "phone": "Telefonnummer",
+      "nationality": "Nasjonalitet",
+      "passport": "Pass-/ID-nummer",
+      "bloodtype": "Blodgruppe",
+      "allergies": "Allergier",
+      "diseases": "Eksisterende tilstander/sykdommer",
+      "save": "Lagre skipperdata",
+      "save_member": "Lagre medlem",
+      "saved": "Skipperprofilen er vellykket lagret!",
+      "loading": "Mannskapsfilene er lastet inn...",
+      "delete_confirm": "Er du sikker på at du vil fjerne dette besetningsmedlemmet?"
+    },
+    "deviation": {
+      "title": "Tabell over kompassavvik",
+      "subtitle": "Angi den magnetiske kompassavbøyningen (avbøyning) for kurser (MgK) fra 000° til 360° i trinn på 10°.",
+      "heading": "MgK",
+      "deviation": "Distraksjon",
+      "save": "Lagre kalibreringsrutenettet",
+      "saving": "...vil bli reddet...",
+      "saved": "Kalibreringsrutenettet er vellykket lagret!",
+      "loading": "Kalibreringstabellen er lastet inn..."
+    },
+    "settings": {
+      "title": "Innstillinger for loggbok",
+      "subtitle": "Del, sikkerhetskopier og samarbeid for denne loggboken.",
+      "select_logbook_hint": "Velg en loggbok for å redigere innstillingene.",
+      "no_key": "Ingen OpenWeatherMap API-nøkkel tilgjengelig. Lagre din egen nøkkel i brukerprofilen, eller kontakt operatøren.",
+      "weather_success": "Værdata vellykket hentet!",
+      "weather_error": "Henting av værdata mislyktes. Kontroller API-nøkkelen og tilkoblingen.",
+      "weather_date_mismatch": "Værdata kan bare hentes ut for i dag ({{today}}). Denne loggbokoppføringen er datert {{date}}.",
+      "gps_error": "Vennligst skriv inn en posisjon eller finn GPS-koordinatene.",
+      "share_title": "Del loggbok (skrivebeskyttet)",
+      "share_desc": "Aktiver dette alternativet for å opprette en offentlig, skrivebeskyttet lenke. Alle som har denne lenken, kan se seilasene, båtprofilene og mannskapet ditt. Krypteringsnøklene overføres aldri til serveren (de forblir i hash-delen av URL-en).",
+      "share_privacy_warning": "Anbefaling: Del denne lenken kun privat (f.eks. via e-post eller messenger), ikke på sosiale medier.",
+      "share_enable": "Aktiver offentlig lenke",
+      "share_copied": "Linken er kopiert!",
+      "share_copy_btn": "Kopier lenke",
+      "danger_zone_title": "Faresone",
+      "danger_zone_desc": "Hvis du sletter kontoen din, slettes alle dine Passkeys, loggbøker, skipsdata, mannskapsprofiler, reiseoppføringer og E2E-nøkler ugjenkallelig. Denne handlingen kan ikke angres.",
+      "delete_account_btn": "Slett konto ugjenkallelig",
+      "delete_account_confirm_title": "Slett konto?",
+      "delete_account_confirm_desc": "Er du helt sikker på at du vil slette kontoen din og alle tilknyttede loggbøker og E2E-krypterte data ugjenkallelig?",
+      "delete_account_confirm_yes": "Ja, slett konto og alle data",
+      "delete_account_confirm_no": "Avbryt",
+      "delete_account_failed": "Kontoen kunne ikke slettes. Vennligst prøv igjen.",
+      "delete_backup_hint": "Tips: Lag sikkerhetskopier av loggbøkene dine (.daagbok.json) i innstillingene for hver loggbok før du sletter dem.",
+      "deleting_account": "Kontoen vil bli slettet...",
+      "invite_push_prompt_title": "Aktivere push-varsler?",
+      "invite_push_prompt_message": "Så snart inviterte besetningsmedlemmer synkroniserer endringer, kan du bli informert via push. Ingen loggbokinnhold sendes i ren tekst.",
+      "invite_push_prompt_ios_message": "Så snart besetningsmedlemmene synkroniserer endringer, kan du bli informert via push. På iPhone/iPad: Legg til appen på startskjermen (iOS 16.4+), og aktiver deretter push i brukerprofilen.",
+      "invite_push_prompt_enable": "Aktiver nå",
+      "invite_push_prompt_later": "Senere",
+      "invite_push_prompt_success": "Push-varsler er aktive på denne enheten.",
+      "backup_title": "Sikkerhetskopiering og gjenoppretting",
+      "backup_desc": "Fullstendig kryptert sikkerhetskopi av denne loggboken (oppføringer, bilder, GPS-spor, mannskap, skip). Beskyttet med sikkerhetskopieringspassord - for gjenoppretting til denne eller en ny konto.",
+      "backup_export_title": "Opprett sikkerhetskopi",
+      "backup_export_desc": "Laster ned alle lokale data som .daagbok.json. Hold filen og passordfrasen adskilt og sikker.",
+      "backup_restore_title": "Gjenopprett sikkerhetskopi",
+      "backup_restore_desc": "Gjenoppretter en sikkerhetskopi til din nåværende konto - selv etter at du har registrert en ny konto.",
+      "backup_passphrase": "Passord for sikkerhetskopiering",
+      "backup_passphrase_placeholder": "Minst 8 tegn",
+      "backup_passphrase_confirm": "Bekreft passordfrasen",
+      "backup_passphrase_short": "Passordfrasen for sikkerhetskopiering må være på minst 8 tegn.",
+      "backup_passphrase_mismatch": "Passordfraser stemmer ikke overens.",
+      "backup_wrong_passphrase": "Passordfrasen er feil eller sikkerhetskopien er ødelagt.",
+      "backup_export_btn": "Last ned sikkerhetskopi",
+      "backup_exporting": "Sikkerhetskopien er opprettet...",
+      "backup_export_success": "Sikkerhetskopi opprettet ({{count}} reisedager).",
+      "backup_file_label": "Sikkerhetskopifil (.daagbok.json)",
+      "backup_preview_btn": "Sjekk innhold",
+      "backup_previewing": "Sjekk...",
+      "backup_restore_btn": "Gjenopprett",
+      "backup_restoring": "Vil bli restaurert...",
+      "backup_restore_success": "Loggbok \"{{title}}\" er gjenopprettet.",
+      "backup_restore_cancelled": "Gjenoppretting avlyst.",
+      "backup_invalid_json": "Filen er ikke en gyldig JSON-fil.",
+      "backup_invalid_format": "Ukjent eller utdatert sikkerhetskopiformat.",
+      "backup_not_owner": "Det er bare eieren av loggboken som kan opprette sikkerhetskopier.",
+      "backup_not_authenticated": "Vennligst logg inn for å gjenopprette en sikkerhetskopi.",
+      "backup_id_conflict": "Det finnes allerede en loggbok med denne ID-en.",
+      "backup_overwrite_confirm": "Den eksisterende loggboken med samme ID erstattes. Fortsette?",
+      "backup_new_id_confirm": "Importere sikkerhetskopien som en ny loggbok med ny ID?",
+      "backup_stat_entries": "{{count}} Reisedager",
+      "backup_stat_photos": "{{count}} Bilder",
+      "backup_stat_crew": "{{count}} Mannskapsposter",
+      "backup_stat_tracks": "{{count}} GPS-spor",
+      "backup_exported_at": "Eksportert: {{date}}"
+    },
+    "disclaimer": {
+      "title": "Viktige merknader",
+      "intro": "Vennligst les følgende instruksjoner før du bruker Kapteins Daagbok.",
+      "e2e_title": "Ende-til-ende-kryptering",
+      "e2e_body": "Loggbokdataene dine er kryptert fra ende til ende. Bare du - eller personer med din nøkkel - kan lese innholdet. Kun krypterte data lagres på serveren.",
+      "pwa_title": "Progressiv webapp (PWA)",
+      "pwa_body": "Kapteins Daagbok kjører som en progressiv webapp i nettleseren din og kan installeres på enheten din - på samme måte som en native-app, men uten en appbutikk.",
+      "storage_title": "Lokal lagring og synkronisering",
+      "storage_body": "Dataene dine lagres lokalt på enheten din (IndexedDB). Endringer synkroniseres med serveren når en Internett-tilkobling er aktiv. Du kan fortsette å jobbe uten tilkobling, synkroniseringen skjer senere.",
+      "free_title": "Gratis og reklamefri",
+      "free_body": "Kapteins Daagbok er gratis og inneholder ingen reklame.",
+      "liability_title": "Ansvarsfraskrivelse",
+      "liability_body": "Bruk av appen skjer på eget ansvar. Vi fraskriver oss ethvert ansvar for skader som oppstår som følge av bruk av appen - inkludert feilaktige eller ufullstendige loggbokoppføringer, tap av data eller tekniske feil.",
+      "warranty_title": "Ingen garanti",
+      "warranty_body": "Det gis ingen garanti for tjenestens funksjon, korrekthet eller tilgjengelighet. Driften kan når som helst bli avbrutt, begrenset eller kansellert.",
+      "copyright": "© 2026 KnorrLabs, Markus F.J. Busche",
+      "accept": "Godta og fortsett",
+      "close": "Lukk",
+      "button_title": "Merknader og ansvarsfraskrivelse"
+    },
+    "feedback": {
+      "button_title": "Send tilbakemelding",
+      "title": "Tilbakemeldinger",
+      "intro": "Del feil, ideer eller generelle tilbakemeldinger. Meldingen din vil bli sendt til prosjektteamet via en sikker varslingskanal.",
+      "category_label": "Kategori",
+      "category_general": "Generelt",
+      "category_bug": "Rapporter feil",
+      "category_feature": "Forespørsel om funksjonalitet",
+      "category_translation": "Oversettelsesfeil",
+      "contact_label": "E-post (valgfritt)",
+      "contact_placeholder": "deine@email.beispiel",
+      "message_label": "Melding",
+      "message_placeholder": "Beskriv tilbakemeldingene dine...",
+      "send": "Send",
+      "sending": "Vil bli sendt...",
+      "cancel": "Avbryt",
+      "success": "Tusen takk skal du ha! Tilbakemeldingen din er sendt.",
+      "error_send": "Tilbakemelding kunne ikke sendes. Vennligst prøv igjen senere.",
+      "error_invalid_email": "Vennligst skriv inn en gyldig e-postadresse.",
+      "error_not_configured": "Tilbakemelding er ikke tilgjengelig på denne serveren.",
+      "error_rate_limited": "For mange tilbakemeldinger på kort tid. Vennligst vent noen minutter.",
+      "error_spam": "Denne meldingen kunne ikke sendes. Vennligst omformuler den."
+    },
+    "demo": {
+      "logbook_title": "Demologgbok Østersjøen",
+      "badge": "Demo",
+      "public_banner": "Skrivebeskyttet demovisning",
+      "cta_register": "Opprett konto",
+      "back_to_login": "Til registreringen"
+    },
+    "invitation": {
+      "error_invalid_key": "Invitasjonslenken er kryptografisk ugyldig (feil nøkkel).",
+      "error_missing_key": "Invitasjonslenken inneholder ikke en dekrypteringsnøkkel (#key=...). Vennligst bruk den fullstendige lenken fra eieren.",
+      "error_expired": "Denne invitasjonen har utløpt (gyldig i 48 timer).",
+      "error_invalid_token": "Invitasjonstokenet er ugyldig.",
+      "error_load_failed": "Invitasjonsdetaljer kunne ikke lastes inn.",
+      "error_incomplete_session": "Økten er ufullstendig - vennligst logg inn på nytt (bruker-ID mangler).",
+      "error_accept_failed": "Tiltredelse mislyktes.",
+      "error_login_failed": "Passkey Innlogging mislyktes.",
+      "error_username_missing": "Brukernavnet ble ikke funnet - vennligst logg inn på nytt.",
+      "error_register_failed": "Registrering mislyktes.",
+      "loading_joining": "Bli med...",
+      "loading_checking": "Invitasjonen vil bli sjekket...",
+      "loading_unlocking": "Loggboken er låst opp og synkronisert...",
+      "loading_retrieving_key": "Last ned krypteringsnøkkelen...",
+      "error_title": "Feil i invitasjonen",
+      "back_to_start": "Tilbake til start",
+      "title": "Invitasjon til loggbok",
+      "invited_by": "Invitasjon fra",
+      "vessel_logbook": "Skip / Loggbok",
+      "signed_in_preparing": "Registrert som {{username}}. Tilslutning er under forberedelse...",
+      "join_again": "Bli med igjen",
+      "login_or_register_hint": "Logg inn eller registrer en konto for å bli med i loggboken.",
+      "or_sign_up": "ELLER REGISTRER DEG PÅ NYTT",
+      "register_crew_account": "Opprett en ny crew-konto",
+      "username_label": "Brukernavn",
+      "create_passkey": "Opprett Passkey",
+      "switch_language_en": "Engelsk",
+      "switch_language_de": "Tysk"
+    },
+    "stats": {
+      "title": "Statistikk",
+      "subtitle": "Oversikt over ruter, forbruk og kjøretype",
+      "scope_label": "Evalueringsområde",
+      "scope_logbook": "Denne loggboken",
+      "scope_account": "Alle loggbøker",
+      "loading": "Statistikken er beregnet...",
+      "no_data": "Ingen reisedager tilgjengelig ennå.",
+      "total_distance": "Total avstand",
+      "travel_days": "Reisedager",
+      "sail_distance": "Under seil",
+      "motor_distance": "Maskinreise",
+      "motor_hours_total": "Totalt antall maskintimer",
+      "daily_motor_hours": "Maskintimer per reisedøgn",
+      "avg_motor_hours": "Ø maskintimer per reisedøgn",
+      "unknown_propulsion": "Ukjent",
+      "fuel_total": "Totalt drivstoff",
+      "water_total": "Totalt vann",
+      "daily_etmal": "Daglige tider",
+      "daily_consumption": "Daglig forbruk",
+      "route_overview": "Rute",
+      "route_map_title": "Oversikt over ruten",
+      "propulsion_title": "Seil vs. maskin",
+      "propulsion_hint": "Fordelingen er basert på loggbokhendelser per reisedag, ikke på GPS-segmenter.",
+      "avg_distance": "Ø per reisedag",
+      "avg_fuel": "Ø Drivstoff",
+      "avg_water": "Ø Vann",
+      "fuel_per_nm": "Drivstoff per sm",
+      "fuel_per_motor_hour": "Drivstoff per maskintime",
+      "daily_fuel_per_motor_hour": "Drivstofforbruk per maskintime per kjøredag",
+      "fuel_legend": "Drivstoff",
+      "water_legend": "Vann",
+      "unit_nm": "sm",
+      "unit_h": "h",
+      "unit_l": "L",
+      "day_label": "Dag {{day}}",
+      "account_logbooks": "Oversikt over loggbøker",
+      "col_logbook": "Loggbok"
+    },
+    "tour": {
+      "skip": "Hopp over turen",
+      "back": "Tilbake",
+      "next": "Videre",
+      "finish": "Ferdig",
+      "progress": "Trinn {{current}} fra {{total}}",
+      "steps": {
+        "welcome": {
+          "title": "Velkommen om bord!",
+          "body": "Vi har laget en demo-loggbok med tre dagers reise i Kielfjorden for deg. Du kan når som helst slette eksempeloppføringene hvis du vil starte din egen loggbok. Denne korte omvisningen viser deg de viktigste funksjonene."
+        },
+        "welcome_public": {
+          "title": "Velkommen om bord!",
+          "body": "Utforsk vår demologgbok med tre dagers reise i Kielfjorden - uten konto. Denne korte omvisningen viser deg skipsdata, mannskap og loggbokoppføringer."
+        },
+        "nav_logs": {
+          "title": "Loggbokoppføringer",
+          "body": "Her administrerer du reisedagene dine - avreise, destinasjon, vær, drivstoffnivå og GPS-spor."
+        },
+        "entry_list": {
+          "title": "Dine reisedager",
+          "body": "Hvert kort representerer en reisedag. Trykk på en oppføring for å vise eller redigere detaljer."
+        },
+        "entry_open": {
+          "title": "Åpen reisedag",
+          "body": "Slik ser en fullført loggbok ut - med hendelser, tanknivåer og mer."
+        },
+        "entry_track": {
+          "title": "GPS-sporing",
+          "body": "Last opp GPX-filer eller se allerede lagrede ruter på kartet - inkludert avstand og hastighet."
+        },
+        "nav_vessel": {
+          "title": "Skipsdata",
+          "body": "Skriv inn navn, dimensjoner og tekniske data for båten din - fyll inn én gang, tilgjengelig for alle reisedager."
+        },
+        "nav_crew": {
+          "title": "Mannskapsliste",
+          "body": "Administrer mannskapet og tilordne dem til reisedager senere."
+        },
+        "nav_stats": {
+          "title": "Dashbord for statistikk",
+          "body": "Her kan du se kjørelengder, drivstofforbruk, rutekart og kjøreandeler - automatisk beregnet ut fra loggbokoppføringene dine."
+        },
+        "nav_feedback": {
+          "title": "Send tilbakemelding",
+          "body": "Du kan bruke dette skjemaet til å sende feil, ideer eller generelle tilbakemeldinger direkte til prosjektteamet - også etter omvisningen, når som helst ved hjelp av ikonet øverst til høyre."
+        },
+        "nav_profile": {
+          "title": "Din brukerprofil",
+          "body": "Du får tilgang til din personlige profil via skipperknappen øverst - uavhengig av hvilken loggbok du bruker."
+        },
+        "profile_preferences": {
+          "title": "Regnskap og presentasjon",
+          "body": "Her kan du administrere kontoidentitet, tema og lys/mørk modus. Du kan når som helst starte appturen på nytt. Passkeys og sikkerhetsinnstillinger finner du lenger ned i profilen."
+        },
+        "finish": {
+          "title": "Greit!",
+          "body": "Du kommer rett til statistikkoversikten. Du kan når som helst starte turen på nytt i brukerprofilen din. Ha en riktig god tur!"
+        }
+      }
+    },
+    "seo": {
+      "title": "Kapteins Daagbok - Gratis digital loggbok for fritidsbåter (uten reklame)",
+      "description": "Gratis, annonsefri digital loggbok med ende-til-ende-kryptering og Passkey-pålogging. Dokumenter seilingsdager, GPS-spor, mannskaps- og skipsdata på en sikker måte - også offline som PWA.",
+      "keywords": "Yachtloggbok, skipsloggbok, loggbok om bord, seiling, Passkey, E2E-kryptering, GPS-sporing, maritim loggbok, gratis, reklamefri, gratis, uten reklame",
+      "ogImageAlt": "Kapteins Daagbok Logo"
+    }
+  }
+}

client/src/i18n/locales/sv.json

@@ -0,0 +1,736 @@
+{
+  "translation": {
+    "app": {
+      "name": "Kapteins Daagbok",
+      "tagline": "Loggbok för privat yacht",
+      "beta": "Beta",
+      "beta_hint": "Betaversion - funktioner kan fortfarande ändras"
+    },
+    "languages": {
+      "de": "Deutsch",
+      "en": "English",
+      "da": "Dansk",
+      "sv": "Svenska",
+      "nb": "Norsk"
+    },
+    "common": {
+      "unsaved_changes_title": "Osparade ändringar",
+      "unsaved_changes_message": "Du har ändringar som inte sparats. Vill du verkligen lämna sidan? Dina ändringar kommer att gå förlorade.",
+      "unsaved_changes_leave": "Övergivande",
+      "unsaved_changes_stay": "Stanna kvar"
+    },
+    "nav": {
+      "dashboard": "Instrumentpanel",
+      "vessel": "Fartygsdata",
+      "crew": "Besättningslista",
+      "deviation": "Distraktionsbord",
+      "logs": "Loggboksanteckningar",
+      "stats": "Statistik",
+      "settings": "Inställningar"
+    },
+    "auth": {
+      "welcome": "Välkommen till Kapteins Daagbok",
+      "tagline": "Din säkra, E2Ekrypterade loggbok för sjöfarten.",
+      "register": "Registrera dig med Passkey",
+      "login": "Logga in med Passkey",
+      "login_as": "Logga in som {{name}}",
+      "quick_login": "Snabb inloggning",
+      "forget_account": "Glömt konto på den här enheten",
+      "not_user": "Inte {{name}}?",
+      "recovery_title": "Din återställningsnyckel",
+      "recovery_warning": "VIKTIGT: Skriv ner dessa 12 ord. Om du förlorar din Passkey och dessa ord kan dina data inte återställas.",
+      "confirm_recovery": "Jag har skrivit ner orden",
+      "status_logged_in": "Inloggad",
+      "status_logged_out": "Avbruten",
+      "copied": "Kopierat!",
+      "copy_phrase": "Kopiera tangent",
+      "enter_recovery": "Ange återställningsnyckel",
+      "recovery_fallback_warning": "Din Passkey har autentiserats, men din enhet stöder inte maskinvarubaserad nyckelavledning. Ange din återställningsnyckel på 12 ord för att dekryptera din loggbok.",
+      "recovery_placeholder": "Ange din återställningsnyckel som består av 12 ord åtskilda av mellanslag...",
+      "back": "Tillbaka",
+      "decrypting": "Dekryptering...",
+      "decrypt_logbook": "Dekryptera loggbok",
+      "error_incorrect_recovery": "Felaktig återställningsnyckel. Dekryptering misslyckades.",
+      "error_decryption_failed": "Dekrypteringen misslyckades. Vänligen kontrollera din återställningsnyckel.",
+      "or_register": "eller registrera dig",
+      "explore_demo": "Utforska demoversionen utan konto",
+      "username_placeholder": "Användarnamn / Skepparnamn",
+      "processing": "Bearbetning...",
+      "help": "Hjälp",
+      "setup_pin_title": "Ange lokal PIN-kod (tillval)",
+      "setup_pin_warning": "Eftersom din enhet inte stöder direkt härledning av Passkey-nycklar måste du annars ange din nyckel på 12 ord varje gång du loggar in på den här enheten. Konfigurera en lokal PIN-kod för att undvika detta.",
+      "pin_placeholder": "E.G. 123456",
+      "pin_label": "Lokal PIN-kod (4-8 siffror)",
+      "save_pin": "Spara PIN-kod och fortsätt",
+      "skip_pin": "Skip & använd återvinning",
+      "enter_pin_title": "Dekryptera med PIN-kod",
+      "enter_pin_warning": "Ange din lokala PIN-kod för att låsa upp dekrypteringsnyckeln på den här enheten.",
+      "enter_pin_placeholder": "Ange din PIN-kod...",
+      "decrypt_with_pin": "Dekryptera",
+      "use_recovery_instead": "Använd återställningsnycklar istället",
+      "error_incorrect_pin": "Felaktig PIN-kod. Dekryptering misslyckades."
+    },
+    "pwa": {
+      "title": "Installera app",
+      "generic_benefit": "Installera Kapteins Daagbok på din enhet för snabbare åtkomst, offline-användning och permanent datalagring.",
+      "ios_instructions": "På iPad/iPhone: Lägg till appen på startskärmen så att dina loggboksdata förblir skyddade och appen startar som en inbyggd app.",
+      "ios_step_share": "Tryck på aktiesymbolen i fältet Safari.",
+      "ios_step_add": "Välj \"Gå till startskärmen\"",
+      "install_now": "Installera nu",
+      "installing": "Installation...",
+      "later": "Senare",
+      "never": "Visa inte mer",
+      "platform_ios": "Installation via Safari.",
+      "platform_android": "Installation via webbläsaren",
+      "platform_desktop": "Installation som en skrivbordsapp",
+      "settings_section": "Installation av app",
+      "update_title": "Uppdatering tillgänglig",
+      "update_desc": "En ny version av Kapteins Daagbok är klar. Uppdatera för att få de senaste ändringarna.",
+      "update_now": "Uppdatering nu",
+      "update_reloading": "Laddar..."
+    },
+    "sync": {
+      "status_synced": "Synkroniserad",
+      "status_syncing": "Synkronisera...",
+      "status_offline": "Offline-cache",
+      "status_unsynced": "Osynkroniserade förändringar"
+    },
+    "vessel": {
+      "title": "Masterdata för fartyg",
+      "name": "Yacht namn",
+      "type": "Typ av båt",
+      "type_unset": "- inte specificerad -",
+      "type_sailing": "Segelyacht",
+      "type_motor": "Motorbåt",
+      "length_m": "Längd (m)",
+      "draft_m": "Djupgående (m)",
+      "air_draft_m": "Höjd (m)",
+      "invalid_metric": "Ogiltigt numeriskt värde - ange meter som ett decimaltal (t.ex. 12,5).",
+      "port": "Hem hamn",
+      "owner": "Ägare",
+      "charter": "Charterbolag",
+      "registration": "Registreringsnummer/registreringsskylt",
+      "callsign": "Radioanropssignal",
+      "atis": "ATIS nr.",
+      "mmsi": "MMSI nr.",
+      "save": "Spara fartygsdata",
+      "saving": "Kommer att sparas...",
+      "saved": "Fartygsdata har sparats framgångsrikt!",
+      "loading": "Fartygsdata är inlästa...",
+      "sails_list": "Segel (befintliga segel)",
+      "sails_help": "Ange här de segel som finns tillgängliga på din båt (t.ex. storsegel, genua, fock).",
+      "add_sail": "Lägg till segel",
+      "sail_name_placeholder": "z. t.ex. storsegel",
+      "no_sails": "Inga segel lagrade.",
+      "photo_add": "Lägg till foto",
+      "photo_change": "Ändra foto",
+      "photo_delete": "Ta bort foto",
+      "tanks_section": "Tankar (kapacitet)",
+      "tanks_help": "Valfritt i liter - möjliggör slider i journalen för kända tankstorlekar.",
+      "freshwater_capacity_l": "Dricksvatten (liter)",
+      "fuel_capacity_l": "Bränsle (liter)",
+      "greywater_capacity_l": "Gråvatten (liter)",
+      "invalid_tank_liters": "Ogiltigt numeriskt värde - ange liter som ett tal (t.ex. 200)."
+    },
+    "logs": {
+      "title": "Loggboksjournal",
+      "new_entry": "Ny resdag",
+      "travel_details": "Detaljer om resan",
+      "add_event": "Lägg till ny loggbokspost",
+      "add_event_btn": "Lägg till händelse",
+      "edit_event": "Redigera händelse",
+      "save_event_btn": "Spara ändring",
+      "cancel_event_edit": "Avbryt",
+      "delete_event": "Ta bort händelse",
+      "sign_cleared_skipper_re_sign_title": "Skippers signatur borttagen",
+      "sign_cleared_skipper_re_sign": "Händelseloggen har ändrats. Skepparens signatur har tagits bort. Vänligen godkänn igen.",
+      "date": "datum",
+      "day_of_travel": "Resedag / resedag",
+      "departure": "Starthamn (resa från)",
+      "destination": "Destinationsport (till)",
+      "route": "Resa från/till",
+      "freshwater": "Färskvatten (liter)",
+      "fuel": "Treibstoff / Bränsle (liter)",
+      "greywater": "Gråvatten (liter)",
+      "greywater_level": "Fyllnadsnivå",
+      "tank_slider_of_max": "{{current}} / {{max}} L",
+      "tank_capacity_tooltip": "Om tankens kapacitet (liter) finns lagrad i fartygets data kan du ange fyllnadsnivåerna här med hjälp av skjutreglaget.",
+      "morning": "Stå på morgonen",
+      "refilled": "Påfylld",
+      "evening": "Kvällsställ",
+      "consumption": "Daglig konsumtion",
+      "signatures": "Underskrifter / frisläppande",
+      "sign_skipper": "Skepparens signatur",
+      "sign_crew": "Besättningens signatur",
+      "sign_hint": "Signera med finger, penna eller mus",
+      "sign_clear": "Radera",
+      "sign_export_image": "[Signatur]",
+      "sign_with_passkey": "Frigör med Passkey",
+      "sign_passkey_signing": "Passkey begärs...",
+      "sign_passkey_signed": "Utgiven av {{username}}",
+      "sign_passkey_export": "Passkey: {{username}} ({{date}})",
+      "sign_attribution_export": "{{username}} ({{date}})",
+      "sign_passkey_clear": "Ta bort Passkey release",
+      "sign_mode_passkey": "Passkey",
+      "sign_mode_classic": "Klassisk",
+      "sign_passkey_failed": "Passkey Frigöring misslyckades",
+      "sign_passkey_cancelled": "Passkey Frigörandet inställt",
+      "sign_invalid": "Signaturen är ogiltig - innehållet har ändrats",
+      "sign_badge_skipper": "Skeppare",
+      "sign_badge_skipper_invalid": "Ogiltig",
+      "sign_badge_skipper_title_valid": "Skepparen har släppt",
+      "sign_badge_skipper_title_invalid": "Skippers signatur ogiltig - innehållet har ändrats",
+      "sign_classic_or_passkey": "Valfritt: klassisk signatur eller Passkey release ovan",
+      "sign_crew_passkey_hint": "Besättningsmedlemmar med skrivbehörighet kan frigöra via Passkey.",
+      "sign_offline_hint": "Passkey-Godkännande kräver Internet - klassisk signatur möjlig offline",
+      "sign_lock_notice": "Efter undertecknandet är det inte möjligt att göra ändringar i loggboksanteckningen (utom foton) utan att skepparen och besättningen måste underteckna på nytt.",
+      "sign_lock_active": "Denna post är signerad. Ändringar i loggboken (utom foton) tar automatiskt bort skepparens och besättningens signaturer.",
+      "sign_lock_warning_title": "Bekräfta underskrift",
+      "sign_lock_warning": "Efter undertecknandet är det inte längre möjligt att göra ändringar i loggboksanteckningen (utom foton) utan att skepparen och besättningen måste underteckna på nytt.\n\nVill du fortsätta?",
+      "sign_proceed": "Teckna",
+      "sign_cancel": "Avbryt",
+      "sign_cleared_re_sign_title": "Underskrifter borttagna",
+      "sign_cleared_re_sign": "Loggboksanteckningen har ändrats. Skepparens och besättningens namnteckningar har tagits bort. Vänligen underteckna igen.",
+      "no_entries": "Inga loggboksposter hittade för denna yacht. Skapa din första resedag!",
+      "back_to_list": "Tillbaka till tidskriftslistan",
+      "save": "Spara loggbokssida",
+      "saving": "Kommer att sparas...",
+      "saved": "Loggbokssidan har sparats framgångsrikt!",
+      "loading": "Journalen laddas...",
+      "delete_entry": "Ta bort tagg",
+      "delete_confirm": "Är du säker på att du vill radera den här resedagen permanent?",
+      "carry_over_tanks_title": "Överföra data från föregående dag?",
+      "carry_over_tanks_confirm": "Ta över starthamn, färskvatten, bränsle och gråvatten från startnivåerna från resans sista dag?\n\nStarthamn: {{departure}}\nFärskvatten: {{fw}} L\nBränsle: {{fuel}} L\nGråvatten: {{greywater}} L",
+      "carry_over_tanks_yes": "Ta över",
+      "carry_over_tanks_no": "Börja med 0",
+      "event_title": "Kronologisk händelselogg",
+      "no_events": "Inga händelser inlagda för denna resdag ännu.",
+      "event_time": "Tid på dygnet",
+      "event_mgk": "MgK-kurs",
+      "event_rwk": "RwK-kurs",
+      "event_course_section": "Kurs",
+      "course_dial_hint": "Vrid ringen eller gå in i grader",
+      "course_dial_step_label": "Stegstorlek",
+      "course_step_fine": "1°",
+      "course_step_medium": "5°",
+      "course_step_coarse": "10°",
+      "course_tab_mgk": "MgK",
+      "course_tab_rwk": "rwK",
+      "course_invalid": "Ogiltig kurs (0-360)",
+      "course_placeholder_degrees": "z. B. 180",
+      "course_placeholder_cardinal": "z. E.G. NW",
+      "compass_n": "N",
+      "compass_e": "O",
+      "compass_s": "S",
+      "compass_w": "W",
+      "wind_mode_cardinal": "Kardinal",
+      "wind_mode_degrees": "Som examen",
+      "event_wind_direction": "Vindriktning",
+      "event_wind_strength": "Vindstyrka",
+      "event_sea_state": "Havets tillstånd",
+      "event_weather": "Väder",
+      "event_log": "Log (sm)",
+      "event_gps": "GPS-position",
+      "event_location": "Plats / hamn",
+      "event_location_placeholder": "z. t.ex. Kiel",
+      "event_remarks": "Anmärkningar / incidenter",
+      "gps_btn": "Hämta GPS-koordinater",
+      "weather_btn": "OpenWeatherMap Ring upp väder",
+      "event_wind_pressure": "Lufttryck (hPa)",
+      "event_heel": "Krängning (°)",
+      "event_sails": "Segelhantering / motor",
+      "motor_propulsion": "Maskinens resa",
+      "sails_picker_show_more": "Visa alla segel",
+      "sails_picker_show_less": "Visa mindre",
+      "motor_hours": "Maskintimmar (totalt)",
+      "fuel_per_motor_hour": "Förbrukning per maskintimme",
+      "event_distance": "Avstånd (sm)",
+      "export_csv": "Hämta CSV.",
+      "share_csv": "Aktie",
+      "export_pdf": "Hämta PDF.",
+      "exporting_pdf": "PDF genereras...",
+      "photos_title": "Fotobilagor (E2E-krypterade)",
+      "photo_caption_label": "Fotobeskrivning/etikett (valfritt)",
+      "photo_caption_placeholder": "t.ex. sätta segel nära hamninloppet",
+      "photo_btn": "Ta foto / ladda upp",
+      "photo_processing": "Håller på att bearbetas...",
+      "no_photos": "Inga foton kopplade till denna resdag ännu.",
+      "photo_delete_confirm": "Är du säker på att du vill radera det här fotot permanent?",
+      "confirm_yes": "Ja",
+      "confirm_no": "Nej",
+      "track_upload_title": "GPS-spårning (fil)",
+      "track_upload_points": "Poäng",
+      "gps_tracking_btn_gpx": "Ladda ner spårfil",
+      "gps_track_upload_help": "Dra en GPX-, KML- eller GeoJSON-fil hit eller klicka för att välja",
+      "gps_track_upload_btn": "Ladda upp GPS-spår",
+      "gps_track_delete": "Ta bort spårfil",
+      "gps_track_delete_confirm": "Är du säker på att du vill radera den här spårfilen permanent?",
+      "track_distance": "GPS-rutt (sm)",
+      "track_speed_max": "Max. hastighet Hastighet (kn)",
+      "track_speed_avg": "Ø Hastighet (kn)",
+      "track_map_title": "GPS-spår på OpenSeaMap",
+      "track_map_start": "Start",
+      "track_map_end": "Mål",
+      "track_map_speed_slow": "långsamt",
+      "track_map_speed_fast": "snabb",
+      "track_map_error": "Kartan kunde inte läsas in.",
+      "exporting": "Export...",
+      "share_unsupported": "Delning stöds inte på den här enheten. Filen har laddats ner istället.",
+      "invite_crew": "Bjud in besättningen",
+      "invite_link_copied": "Länk till inbjudan kopierad till urklipp!",
+      "invite_link_desc": "Dela den här länken med besättningsmedlemmar för att ge dem skrivrättigheter till loggboken.",
+      "collaborators_list": "Medlemmar / Besättning",
+      "revoke": "Ta bort",
+      "revoke_confirm": "Är du säker på att du vill återkalla den här besättningsmedlemmens åtkomst?",
+      "invite_role": "Roll",
+      "invite_expires": "Länken är giltig i 48 timmar"
+    },
+    "dashboard": {
+      "title": "Dina loggböcker",
+      "subtitle": "Välj en loggbok eller skapa en ny för att hantera dina resor.",
+      "create_btn": "Skapa loggbok",
+      "new_logbook_placeholder": "Loggbokens eller båtens namn",
+      "logout": "Logga ut",
+      "logged_in_as": "Inloggad som {{name}}",
+      "delete_confirm": "Är du säker på att du vill radera den här loggboken permanent? Alla lokala data och serverkopior kommer att förstöras.\n\nTips: Skapa en säkerhetskopia (.daagbok.json) i förväg under Inställningar → Säkerhetskopiering och återställning om du vill behålla data senare.",
+      "no_logbooks": "Inga loggböcker hittades. Skapa din första loggbok för att komma igång!",
+      "loading": "Loggböckerna är fulla...",
+      "status_synced": "Synkroniserad",
+      "status_local": "Endast lokal cache",
+      "delete_btn": "Radera loggbok",
+      "section_owned": "Mina loggböcker",
+      "section_shared": "Delade loggböcker",
+      "section_shared_hint": "Du har blivit inbjuden som besättningsmedlem. Skepparens profil och inställningar tillhör ägaren.",
+      "role_owner": "Egen loggbok",
+      "role_owner_hint": "Du är ägare och skeppare till denna loggbok",
+      "role_crew": "Tillträde för besättningen",
+      "role_crew_hint": "Inbjuden loggbok - du kan arbeta som besättning och underteckna den",
+      "role_read": "Endast läsning",
+      "role_read_hint": "Delad loggbok - endast visning, ingen redigering",
+      "open_profile": "Öppna profil för {{name}}",
+      "edit_title": "Byt namn på loggbok",
+      "edit_placeholder": "Nytt namn på loggboken",
+      "edit_success": "Loggboken har framgångsrikt bytt namn",
+      "edit_btn": "Byt namn på",
+      "filter_label": "Filtrera loggböcker",
+      "filter_placeholder": "Namn, årtal eller datum ...",
+      "filter_clear": "Återställ filter",
+      "filter_results": "{{count}} Träffar",
+      "filter_no_results": "Inga loggböcker matchar din sökning. Försök med ett annat namn eller ett annat år.",
+      "sort_label": "Sortera",
+      "sort_by_label": "Sortera efter",
+      "sort_by_name": "Namn",
+      "sort_by_date": "datum",
+      "sort_dir_label": "Sekvens",
+      "sort_asc": "Stigande",
+      "sort_desc": "Nedåtgående",
+      "sort_name_asc": "Namn A till Ö",
+      "sort_name_desc": "Namn Z till A",
+      "sort_date_asc": "Äldst först",
+      "sort_date_desc": "Nyast först"
+    },
+    "profile": {
+      "title": "Användarprofil",
+      "subtitle": "Konto, Passkeys och statistik för {{name}}",
+      "back": "Tillbaka till instrumentpanelen",
+      "loading": "Profilen håller på att laddas...",
+      "load_error": "Profilen kunde inte laddas.",
+      "copy_failed": "Kopiering misslyckades.",
+      "processing": "Håller på att bearbetas...",
+      "identity_title": "Kontots identitet",
+      "username": "Användarens namn",
+      "user_id": "Användar-ID",
+      "copy_user_id": "Kopiera användar-ID",
+      "account_since": "Konto sedan",
+      "prf_status": "Passkey härledning av nyckel (PRF)",
+      "prf_active": "Aktiv",
+      "prf_inactive": "Inte konfigurerad",
+      "passkeys_title": "Passkeys",
+      "passkeys_desc": "Registrera en separat Passkey på varje enhet. Detta gör att du kan logga in även efter att du bytt plattform.",
+      "passkeys_empty": "Inga Passkeys hittades.",
+      "add_passkey_btn": "Lägg till ny Passkey",
+      "add_passkey_success": "Passkey har lagts till.",
+      "add_passkey_failed": "Passkey kunde inte läggas till.",
+      "remove_passkey_btn": "Ta bort Passkey.",
+      "remove_passkey_last_title": "Senaste Passkey.",
+      "remove_passkey_last_desc": "Den enda Passkey kan inte tas bort utan att du förlorar åtkomsten till ditt konto. Om du vill radera kontot helt använder du riskzonen längst ner på den här sidan.",
+      "remove_passkey_failed": "Passkey kunde inte tas bort.",
+      "remove_passkey_confirm_title": "Ta bort Passkey?",
+      "remove_passkey_confirm_desc": "Denna enhet kan sedan inte längre logga in med denna Passkey.",
+      "remove_passkey_confirm_yes": "Ta bort",
+      "remove_passkey_confirm_no": "Avbryt",
+      "pin_title": "Lokal PIN-kod",
+      "pin_status": "Status",
+      "pin_active": "Aktiv på den här enheten",
+      "pin_inactive": "Inte konfigurerad",
+      "pin_confirm_label": "Bekräfta PIN-kod",
+      "pin_confirm_placeholder": "Ange PIN-koden igen",
+      "pin_set_btn": "Ange PIN-kod",
+      "pin_change_btn": "Ändra PIN-kod",
+      "pin_remove_btn": "Ta bort PIN-koden",
+      "pin_saved": "PIN-koden sparad.",
+      "pin_save_failed": "PIN-koden kunde inte räddas.",
+      "pin_mismatch": "PIN-koderna stämmer inte överens.",
+      "pin_length_error": "PIN-koden måste innehålla minst 4 tecken.",
+      "pin_no_session": "Sessionen har löpt ut - vänligen registrera dig igen.",
+      "remove_pin_confirm_title": "Ta bort PIN-koden?",
+      "remove_pin_confirm_desc": "Du måste logga in igen på den här enheten med Passkey eller återställningsnyckel.",
+      "remove_pin_confirm_yes": "Ta bort PIN-koden",
+      "remove_pin_confirm_no": "Avbryt",
+      "security_title": "Checklista för säkerhet",
+      "security_desc": "Översikt över de viktigaste skyddsmekanismerna för ditt konto.",
+      "security_passkeys_ok": "Minst en Passkey registrerad",
+      "security_passkeys_missing": "Nej Passkey registrerad",
+      "security_prf_ok": "Avledning av PRF-nyckel aktiv",
+      "security_prf_missing": "PRF inte upprättad",
+      "security_pin_ok": "Lokal PIN-kod på den här enheten",
+      "security_pin_missing": "Ingen lokal PIN-kod",
+      "security_recovery_ok": "Uppsättning av återställningsnyckel",
+      "security_recovery_hint": "De 12 orden visades under registreringen. Håll dem offline och åtskilda från enheten. Du kan skapa en ny nyckel nedan - den gamla kommer då att bli ogiltig.",
+      "recovery_rotate_btn": "Skapa en ny återställningsnyckel",
+      "recovery_rotate_confirm_title": "Skapa en ny återställningsnyckel?",
+      "recovery_rotate_confirm_desc": "Den tidigare nyckeln på 12 ord blir ogiltig omedelbart. Se till att du förvarar den nya nyckeln säkert innan du fortsätter.",
+      "recovery_rotate_confirm_yes": "Skapa ny nyckel",
+      "recovery_rotate_confirm_no": "Avbryt",
+      "recovery_rotate_new_warning": "VIKTIGT: Skriv ner dessa 12 ord och förvara dem offline. Den tidigare återställningsnyckeln är nu ogiltig.",
+      "recovery_rotate_failed": "Återställningsnyckel kunde inte skapas.",
+      "recovery_rotate_no_session": "Krypteringssessionen har löpt ut - logga ut och logga in igen och försök sedan igen.",
+      "device_title": "Denna enhet",
+      "device_desc": "Lokal cache, synkroniseringsstatus och snabb inloggning i den här webbläsaren.",
+      "device_sync_pending": "{{count}} väntande synkroniseringsposter",
+      "device_sync_ok": "Alla lokala ändringar synkroniseras",
+      "device_remembered": "Konto för snabb inloggning sparat på den här enheten",
+      "device_not_remembered": "Kontot finns inte med i listan för snabb inloggning",
+      "device_forget_btn": "Glömt konto på den här enheten",
+      "device_forget_confirm_title": "Ta bort snabb inloggning?",
+      "device_forget_confirm_desc": "Kontot försvinner från snabbinloggningslistan på den här enheten. Din session och dina lokala loggböcker behålls.",
+      "device_forget_confirm_yes": "Ta bort",
+      "device_forget_confirm_no": "Avbryt",
+      "passkey_label": "Namn för ny Passkey (valfritt)",
+      "passkey_label_placeholder": "z. t.ex. MacBook, iPhone",
+      "passkey_rename_btn": "Spara namn",
+      "passkey_rename_success": "Passkey namn sparat.",
+      "passkey_rename_failed": "Passkey-Namnet kunde inte sparas.",
+      "passkey_unnamed": "Utan titel Passkey",
+      "stats_title": "Statistik",
+      "stats_subtitle": "Om alla dina loggböcker på den här enheten",
+      "stats_logbooks": "Loggböcker",
+      "stats_account_since": "Konto sedan",
+      "stats_shared_logbooks": "Delade loggböcker",
+      "appearance_title": "App & visualisering",
+      "appearance_desc": "Designen och färgschemat gäller för hela appen på den här enheten.",
+      "theme_label": "Appens designstil",
+      "theme_auto": "Automatisk (OS-detektering)",
+      "theme_ocean": "Ocean (glasmorfism)",
+      "theme_material": "Material (Android)",
+      "theme_cupertino": "Cupertino (iOS)",
+      "color_scheme_label": "Ljust eller mörkt läge",
+      "color_scheme_auto": "Automatisk (system)",
+      "color_scheme_light": "Ljus",
+      "color_scheme_dark": "Mörk",
+      "integrations_title": "Integrationer",
+      "owm_key": "OpenWeatherMap API-nyckel",
+      "owm_help": "Valfritt: egen OpenWeatherMap API-nyckel. Om inget anges används nyckeln på serversidan från operatörskonfigurationen.",
+      "prefs_save": "Spara",
+      "prefs_saving": "Kommer att sparas...",
+      "prefs_saved": "Sparade",
+      "tour_title": "App-turné",
+      "tour_desc": "Låt dig vägledas genom de viktigaste områdena i appen igen.",
+      "tour_restart": "Starta resan igen",
+      "push_title": "Push-meddelanden",
+      "push_desc": "Som loggboksägare får du ett meddelande när inbjudna besättningsmedlemmar synkroniserar ändringar. Inget innehåll överförs i klartext.",
+      "push_enable": "Meddela oss om förändringar i besättningen",
+      "push_active": "Push-meddelanden är aktiva på den här enheten.",
+      "push_unsupported": "Push-meddelanden stöds inte i den här webbläsaren.",
+      "push_denied_hint": "Meddelanden är blockerade. Tillåt dem i webbläsarens eller enhetens inställningar.",
+      "push_ios_install_hint": "På iPhone/iPad: Lägg till app på startskärmen (iOS 16.4+) för att använda push.",
+      "push_error": "Push-meddelanden kunde inte aktiveras."
+    },
+    "crew": {
+      "title": "Profiler för skeppare och besättning",
+      "skipper_section": "Skepparens profil",
+      "skipper_read_only_hint": "Skepparens profil kan endast redigeras av loggbokens ägare.",
+      "crew_section": "Besättningslista",
+      "add_crew": "Lägg till besättningsmedlem",
+      "edit_crew": "Redigera besättningsmedlem",
+      "no_crew": "Inga besättningsmedlemmar har lagts till ännu.",
+      "max_crew": "Maximalt antal på 5 besättningsmedlemmar uppnås.",
+      "name": "Namn",
+      "address": "adress",
+      "birthdate": "Födelsedag",
+      "phone": "Telefonnummer",
+      "nationality": "Nationalitet",
+      "passport": "Pass/ID-nummer",
+      "bloodtype": "Blodgrupp",
+      "allergies": "Allergier",
+      "diseases": "Redan existerande tillstånd/sjukdomar",
+      "save": "Spara skeppardata",
+      "save_member": "Spara medlem",
+      "saved": "Skepparens profil har sparats!",
+      "loading": "Besättningsfilerna är laddade...",
+      "delete_confirm": "Är du säker på att du vill ta bort den här besättningsmedlemmen?"
+    },
+    "deviation": {
+      "title": "Tabell för kompassavvikelse",
+      "subtitle": "Ange den magnetiska kompassdeflektionen (deflektion) för kurser (MgK) från 000° till 360° i steg om 10°.",
+      "heading": "MgK",
+      "deviation": "Distraktion",
+      "save": "Spara kalibreringsrutan",
+      "saving": "Kommer att sparas...",
+      "saved": "Kalibreringsnätet har sparats framgångsrikt!",
+      "loading": "Kalibreringsbordet är laddat..."
+    },
+    "settings": {
+      "title": "Inställningar för loggbok",
+      "subtitle": "Dela, säkerhetskopiera och samarbeta för den här loggboken.",
+      "select_logbook_hint": "Välj en loggbok för att redigera dess inställningar.",
+      "no_key": "Ingen OpenWeatherMap API-nyckel tillgänglig. Spara din egen nyckel i användarprofilen eller kontakta operatören.",
+      "weather_success": "Väderdata har hämtats framgångsrikt!",
+      "weather_error": "Hämtning av väderdata misslyckades. Kontrollera API-nyckeln och anslutningen.",
+      "weather_date_mismatch": "Väderdata kan endast hämtas för idag ({{today}}). Denna loggbokspost är daterad {{date}}.",
+      "gps_error": "Ange en plats eller bestäm GPS-koordinaterna.",
+      "share_title": "Aktieloggbok (skrivskyddad)",
+      "share_desc": "Aktivera det här alternativet för att skapa en publik, skrivskyddad länk. Alla som har länken kan se dina resor, båtprofiler och besättning. Krypteringsnycklarna överförs aldrig till servern (de finns kvar i hashdelen av URL:en).",
+      "share_privacy_warning": "Rekommendation: Dela endast den här länken privat (t.ex. via e-post eller messenger), inte på sociala medier.",
+      "share_enable": "Aktivera offentlig länk",
+      "share_copied": "Länk kopierad!",
+      "share_copy_btn": "Kopiera länk",
+      "danger_zone_title": "Farlig zon",
+      "danger_zone_desc": "Om du raderar ditt konto raderas oåterkalleligen alla dina Passkey, loggböcker, fartygsdata, besättningsprofiler, reseanteckningar och E2E-nycklar. Denna åtgärd kan inte ångras.",
+      "delete_account_btn": "Ta bort konto oåterkalleligt",
+      "delete_account_confirm_title": "Radera konto?",
+      "delete_account_confirm_desc": "Är du helt säker på att du oåterkalleligen vill radera ditt konto och alla tillhörande loggböcker och E2E-krypterade data?",
+      "delete_account_confirm_yes": "Ja, radera konto och all data",
+      "delete_account_confirm_no": "Avbryt",
+      "delete_account_failed": "Kontot kunde inte raderas. Vänligen försök igen.",
+      "delete_backup_hint": "Tips: Skapa säkerhetskopior av dina loggböcker (.daagbok.json) i inställningarna för varje loggbok innan du raderar dem.",
+      "deleting_account": "Kontot kommer att raderas...",
+      "invite_push_prompt_title": "Aktivera push-meddelanden?",
+      "invite_push_prompt_message": "Så snart inbjudna besättningsmedlemmar synkroniserar ändringar kan du bli informerad via push. Inget loggboksinnehåll skickas i klartext.",
+      "invite_push_prompt_ios_message": "Så snart besättningsmedlemmar synkroniserar ändringar kan du bli informerad via push. På iPhone/iPad: Lägg till appen på startskärmen (iOS 16.4+) och aktivera sedan push i användarprofilen.",
+      "invite_push_prompt_enable": "Aktivera nu",
+      "invite_push_prompt_later": "Senare",
+      "invite_push_prompt_success": "Push-meddelanden är aktiva på den här enheten.",
+      "backup_title": "Säkerhetskopiering och återställning",
+      "backup_desc": "Komplett krypterad säkerhetskopia av denna loggbok (poster, foton, GPS-spår, besättning, fartyg). Skyddad med lösenfras för säkerhetskopian - för återställning till detta eller ett nytt konto.",
+      "backup_export_title": "Skapa säkerhetskopia",
+      "backup_export_desc": "Laddar ner alla lokala data som .daagbok.json. Förvara filen och lösenfrasen separat och säkert.",
+      "backup_restore_title": "Återställ säkerhetskopian",
+      "backup_restore_desc": "Återställer en säkerhetskopia till ditt nuvarande konto - även efter att du har registrerat ett nytt konto.",
+      "backup_passphrase": "Lösenord för säkerhetskopiering",
+      "backup_passphrase_placeholder": "Minst 8 tecken",
+      "backup_passphrase_confirm": "Bekräfta lösenfras",
+      "backup_passphrase_short": "Säkerhetskopians lösenfras måste vara minst 8 tecken lång.",
+      "backup_passphrase_mismatch": "Lösenfraserna stämmer inte överens.",
+      "backup_wrong_passphrase": "Lösenordet är felaktigt eller säkerhetskopian är skadad.",
+      "backup_export_btn": "Ladda ner backup",
+      "backup_exporting": "Säkerhetskopian skapas...",
+      "backup_export_success": "Säkerhetskopia skapad ({{count}} resdagar).",
+      "backup_file_label": "Säkerhetskopieringsfil (.daagbok.json)",
+      "backup_preview_btn": "Kontrollera innehåll",
+      "backup_previewing": "Check...",
+      "backup_restore_btn": "Återställ",
+      "backup_restoring": "Kommer att återställas...",
+      "backup_restore_success": "Loggbok \"{{title}}\" har återställts.",
+      "backup_restore_cancelled": "Återhämtning avbruten.",
+      "backup_invalid_json": "Filen är inte en giltig JSON-fil.",
+      "backup_invalid_format": "Okänt eller föråldrat backupformat.",
+      "backup_not_owner": "Endast loggbokens ägare kan skapa säkerhetskopior.",
+      "backup_not_authenticated": "Logga in för att återställa en säkerhetskopia.",
+      "backup_id_conflict": "En loggbok med detta ID finns redan.",
+      "backup_overwrite_confirm": "Den befintliga loggboken med samma ID ersätts. Fortsätter du?",
+      "backup_new_id_confirm": "Importera säkerhetskopian som en ny loggbok med ett nytt ID?",
+      "backup_stat_entries": "{{count}} Resdagar",
+      "backup_stat_photos": "{{count}} Foton",
+      "backup_stat_crew": "{{count}} Besättningens uppgifter",
+      "backup_stat_tracks": "{{count}} GPS-spår",
+      "backup_exported_at": "Exporterad: {{date}}"
+    },
+    "disclaimer": {
+      "title": "Viktiga anmärkningar",
+      "intro": "Läs följande anvisningar innan du använder Kapteins Daagbok.",
+      "e2e_title": "End-to-end-kryptering",
+      "e2e_body": "Dina loggboksdata är krypterade från början till slut. Endast du - eller personer med din nyckel - kan läsa innehållet. Endast krypterade data lagras på servern.",
+      "pwa_title": "Progressiv webbapplikation (PWA)",
+      "pwa_body": "Kapteins Daagbok körs som en progressiv webbapp i din webbläsare och kan installeras på din enhet - på samma sätt som en native-app, utan en appbutik.",
+      "storage_title": "Lokal lagring och synkronisering",
+      "storage_body": "Dina data lagras lokalt på din enhet (IndexedDB). Ändringar synkroniseras med servern när en internetanslutning är aktiv. Du kan fortsätta att arbeta utan anslutning, synkroniseringen sker senare.",
+      "free_title": "Kostnadsfritt och reklamfritt",
+      "free_body": "Kapteins Daagbok är kostnadsfritt och innehåller ingen reklam.",
+      "liability_title": "Ansvarsfriskrivning",
+      "liability_body": "Användningen av appen sker på egen risk. Inget ansvar accepteras för skador som uppstår till följd av användningen av appen - inklusive felaktiga eller ofullständiga loggboksanteckningar, förlust av data eller tekniska fel.",
+      "warranty_title": "Ingen garanti",
+      "warranty_body": "Ingen garanti ges för tjänstens funktion, korrekthet eller tillgänglighet. Driften kan när som helst avbrytas, begränsas eller ställas in.",
+      "copyright": "© 2026 KnorrLabs, Markus F.J. Busche",
+      "accept": "Acceptera och fortsätt",
+      "close": "Nära",
+      "button_title": "Anmärkningar och ansvarsfriskrivning"
+    },
+    "feedback": {
+      "button_title": "Skicka feedback",
+      "title": "Återkoppling",
+      "intro": "Dela med dig av buggar, idéer eller allmän feedback. Ditt meddelande kommer att skickas till projektgruppen via en säker meddelandekanal.",
+      "category_label": "Kategori",
+      "category_general": "Allmänt",
+      "category_bug": "Rapportera fel",
+      "category_feature": "Begäran om funktion",
+      "category_translation": "Översättningsfel",
+      "contact_label": "E-post (valfritt)",
+      "contact_placeholder": "deine@email.beispiel",
+      "message_label": "Meddelande",
+      "message_placeholder": "Beskriv din feedback...",
+      "send": "Skicka",
+      "sending": "Kommer att skickas...",
+      "cancel": "Avbryt",
+      "success": "Tack så mycket! Din feedback har skickats.",
+      "error_send": "Feedback kunde inte skickas. Vänligen försök igen senare.",
+      "error_invalid_email": "Vänligen ange en giltig e-postadress.",
+      "error_not_configured": "Feedback är inte tillgängligt på den här servern.",
+      "error_rate_limited": "För många feedbackmeddelanden på kort tid. Vänligen vänta några minuter.",
+      "error_spam": "Det här meddelandet kunde inte skickas. Vänligen omformulera det."
+    },
+    "demo": {
+      "logbook_title": "Demo loggbok Östersjön",
+      "badge": "Demo",
+      "public_banner": "Skrivskyddad demovy",
+      "cta_register": "Skapa konto",
+      "back_to_login": "Till registreringen"
+    },
+    "invitation": {
+      "error_invalid_key": "Länken till inbjudan är kryptografiskt ogiltig (nyckeln är felaktig).",
+      "error_missing_key": "Länken till inbjudan innehåller ingen dekrypteringsnyckel (#key=...). Vänligen använd den fullständiga länken från ägaren.",
+      "error_expired": "Denna inbjudan har löpt ut (giltig i 48 timmar).",
+      "error_invalid_token": "Inbjudan ogiltig.",
+      "error_load_failed": "Inbjudan kunde inte läsas in.",
+      "error_incomplete_session": "Sessionen är ofullständig - logga in igen (användar-ID saknas).",
+      "error_accept_failed": "Anslutningen misslyckades.",
+      "error_login_failed": "Passkey Inloggningen misslyckades.",
+      "error_username_missing": "Användarnamnet kunde inte fastställas - vänligen logga in igen.",
+      "error_register_failed": "Registreringen misslyckades.",
+      "loading_joining": "Ansluter sig...",
+      "loading_checking": "Inbjudan kommer att kontrolleras...",
+      "loading_unlocking": "Loggboken är upplåst och synkroniserad...",
+      "loading_retrieving_key": "Ladda ner krypteringsnyckel...",
+      "error_title": "Fel i inbjudan",
+      "back_to_start": "Tillbaka till början",
+      "title": "Inbjudan till loggbok",
+      "invited_by": "Inbjudan från",
+      "vessel_logbook": "Fartyg / Loggbok",
+      "signed_in_preparing": "Registrerad som {{username}}. Anslutning förbereds...",
+      "join_again": "Gå med igen",
+      "login_or_register_hint": "Logga in eller registrera ett konto för att gå med i loggboken.",
+      "or_sign_up": "ELLER REGISTRERA DIG IGEN",
+      "register_crew_account": "Skapa ett nytt konto för besättningen",
+      "username_label": "Användarens namn",
+      "create_passkey": "Skapa Passkey.",
+      "switch_language_en": "Engelska",
+      "switch_language_de": "Tysk"
+    },
+    "stats": {
+      "title": "Statistik",
+      "subtitle": "Översikt över rutter, förbrukning och typ av körning",
+      "scope_label": "Utvärderingsområde",
+      "scope_logbook": "Denna loggbok",
+      "scope_account": "Alla loggböcker",
+      "loading": "Statistiken är beräknad...",
+      "no_data": "Inga resdagar tillgängliga ännu.",
+      "total_distance": "Totalt avstånd",
+      "travel_days": "Resdagar",
+      "sail_distance": "Under segel",
+      "motor_distance": "Maskinens resa",
+      "motor_hours_total": "Totalt antal maskintimmar",
+      "daily_motor_hours": "Maskintimmar per resdag",
+      "avg_motor_hours": "Ø maskintimmar per resdag",
+      "unknown_propulsion": "Okänd",
+      "fuel_total": "Totalt bränsle",
+      "water_total": "Totalt vatten",
+      "daily_etmal": "Dagliga tider",
+      "daily_consumption": "Daglig konsumtion",
+      "route_overview": "Vägbeskrivning",
+      "route_map_title": "Översikt över rutten",
+      "propulsion_title": "Segel vs. maskin",
+      "propulsion_hint": "Fördelningen baseras på loggbokshändelser per resdag, inte på GPS-segment.",
+      "avg_distance": "Ø per resdag",
+      "avg_fuel": "Ø Bränsle",
+      "avg_water": "Ø Vatten",
+      "fuel_per_nm": "Bränsle per sm",
+      "fuel_per_motor_hour": "Bränsle per maskintimme",
+      "daily_fuel_per_motor_hour": "Bränsleförbrukning per maskintimme och resdag",
+      "fuel_legend": "Bränsle",
+      "water_legend": "Vatten",
+      "unit_nm": "sm",
+      "unit_h": "h",
+      "unit_l": "L",
+      "day_label": "Dag {{day}}__.",
+      "account_logbooks": "Loggböcker i en överblick",
+      "col_logbook": "Loggbok"
+    },
+    "tour": {
+      "skip": "Hoppa över turen",
+      "back": "Tillbaka",
+      "next": "Ytterligare",
+      "finish": "Färdig",
+      "progress": "Steg {{current}} från {{total}}.",
+      "steps": {
+        "welcome": {
+          "title": "Välkommen ombord!",
+          "body": "Vi har skapat en demo-loggbok med tre dagars resa i Kielfjorden åt dig. Du kan när som helst radera exempelposterna om du vill starta din egen loggbok. Den här korta rundturen visar dig de viktigaste funktionerna."
+        },
+        "welcome_public": {
+          "title": "Välkommen ombord!",
+          "body": "Utforska vår demologgbok med tre dagars resor i Kielfjorden - utan konto. Den här korta rundturen visar dig fartygsdata, besättning och loggboksanteckningar."
+        },
+        "nav_logs": {
+          "title": "Loggboksanteckningar",
+          "body": "Det är här du hanterar dina resdagar - avresa, destination, väder, bränslenivåer och GPS-spår."
+        },
+        "entry_list": {
+          "title": "Dina resdagar",
+          "body": "Varje kort representerar en resdag. Tryck på en post för att visa eller redigera detaljer."
+        },
+        "entry_open": {
+          "title": "Öppen resdag",
+          "body": "Så här ser en komplett loggboksanteckning ut - med händelser, tanknivåer och mycket mer."
+        },
+        "entry_track": {
+          "title": "GPS-spårning",
+          "body": "Ladda upp GPX-filer eller visa redan sparade rutter på kartan - inklusive avstånd och hastighet."
+        },
+        "nav_vessel": {
+          "title": "Fartygsdata",
+          "body": "Ange namn, dimensioner och tekniska data för din yacht - fyll i en gång, tillgänglig för alla resdagar."
+        },
+        "nav_crew": {
+          "title": "Besättningslista",
+          "body": "Hantera besättningsmedlemmar och tilldela dem resdagar senare."
+        },
+        "nav_stats": {
+          "title": "Kontrollpanel för statistik",
+          "body": "Här kan du se körsträckor, bränsleförbrukning, ruttkartor och körandelar - automatiskt beräknade från dina loggboksanteckningar."
+        },
+        "nav_feedback": {
+          "title": "Skicka feedback",
+          "body": "Du kan använda det här formuläret för att skicka fel, idéer eller allmän feedback direkt till projektgruppen - även efter rundturen när som helst med hjälp av ikonen längst upp till höger."
+        },
+        "nav_profile": {
+          "title": "Din användarprofil",
+          "body": "Du kommer åt din personliga profil via skipperknappen högst upp - oavsett vilken loggbok som är aktuell."
+        },
+        "profile_preferences": {
+          "title": "Redovisning & presentation",
+          "body": "Här kan du hantera din konto-identitet, ditt tema och ljus/mörker-läge. Du kan när som helst starta om appturen. Passkeys och säkerhetsinställningar hittar du längre ner i profilen."
+        },
+        "finish": {
+          "title": "Okej!",
+          "body": "Du kommer direkt till instrumentpanelen för statistik. Du kan när som helst starta om turen i din användarprofil. Ha en trevlig resa!"
+        }
+      }
+    },
+    "seo": {
+      "title": "Kapteins Daagbok - Gratis digital loggbok för båtar (reklamfri)",
+      "description": "Gratis, annonsfri digital loggbok för båtar med kryptering från början till slut och Passkey-inloggning. Dokumentera resdagar, GPS-spår, besättnings- och fartygsdata på ett säkert sätt - även offline som PWA.",
+      "keywords": "Yachtloggbok, skeppsdagbok, ombordloggbok, segling, Passkey, E2E kryptering, GPS-spår, sjöfartsloggbok, gratis, reklamfri, gratis, utan reklam",
+      "ogImageAlt": "Kapteins Daagbok Logotyp"
+    }
+  }
+}

client/src/index.css

@@ -1,64 +1,8 @@
-:root {
-  --text: #6b6375;
-  --text-h: #08060d;
-  --bg: #fff;
-  --border: #e5e4e7;
-  --code-bg: #f4f3ec;
-  --accent: #aa3bff;
-  --accent-bg: rgba(170, 59, 255, 0.1);
-  --accent-border: rgba(170, 59, 255, 0.5);
-  --social-bg: rgba(244, 243, 236, 0.5);
-  --shadow:
-    rgba(0, 0, 0, 0.1) 0 10px 15px -3px, rgba(0, 0, 0, 0.05) 0 4px 6px -2px;
+/* Minimal app shell — component styles live in App.css / themes.css */
 
-  --sans: system-ui, 'Segoe UI', Roboto, sans-serif;
-  --heading: system-ui, 'Segoe UI', Roboto, sans-serif;
-  --mono: ui-monospace, Consolas, monospace;
-
-  font: 18px/145% var(--sans);
-  letter-spacing: 0.18px;
-  color-scheme: light dark;
-  color: var(--text);
-  background: var(--bg);
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-
-  @media (max-width: 1024px) {
-    font-size: 16px;
-  }
-}
-
-@media (prefers-color-scheme: dark) {
-  :root {
-    --text: #9ca3af;
-    --text-h: #f3f4f6;
-    --bg: #16171d;
-    --border: #2e303a;
-    --code-bg: #1f2028;
-    --accent: #c084fc;
-    --accent-bg: rgba(192, 132, 252, 0.15);
-    --accent-border: rgba(192, 132, 252, 0.5);
-    --social-bg: rgba(47, 48, 58, 0.5);
-    --shadow:
-      rgba(0, 0, 0, 0.4) 0 10px 15px -3px, rgba(0, 0, 0, 0.25) 0 4px 6px -2px;
-  }
-
-  #social .button-icon {
-    filter: invert(1) brightness(2);
-  }
-}
-
-#root {
-  width: 1126px;
-  max-width: 100%;
-  margin: 0 auto;
-  text-align: center;
-  border-inline: 1px solid var(--border);
-  min-height: 100svh;
-  display: flex;
-  flex-direction: column;
+*,
+*::before,
+*::after {
   box-sizing: border-box;
 }
 
@@ -66,44 +10,11 @@ body {
   margin: 0;
 }
 
-h1,
-h2 {
-  font-family: var(--heading);
-  font-weight: 500;
-  color: var(--text-h);
-}
-
-h1 {
-  font-size: 56px;
-  letter-spacing: -1.68px;
-  margin: 32px 0;
-  @media (max-width: 1024px) {
-    font-size: 36px;
-    margin: 20px 0;
-  }
-}
-h2 {
-  font-size: 24px;
-  line-height: 118%;
-  letter-spacing: -0.24px;
-  margin: 0 0 8px;
-  @media (max-width: 1024px) {
-    font-size: 20px;
-  }
-}
-p {
-  margin: 0;
-}
-
-code,
-.counter {
-  font-family: var(--mono);
-  display: inline-flex;
-  border-radius: 4px;
-}
-
-code {
-  font-size: 15px;
-  line-height: 135%;
-  padding: 4px 8px;
+#root {
+  width: 100%;
+  max-width: 100%;
+  min-height: 100svh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
 }

client/src/main.tsx

@@ -3,9 +3,15 @@ import { createRoot } from 'react-dom/client'
 import 'leaflet/dist/leaflet.css'
 import './themes.css'
 import './index.css'
+import './App.css'
 import './i18n'
 import App from './App.tsx'
 import { applyAppearanceToDocument } from './services/appearance.ts'
+import {
+  installStaleAssetRecovery,
+  markReloadAttempt,
+  reconcileVersionOnStartup
+} from './services/pwaStartup.ts'
 
 /** Stale PWA precache on localhost can shadow Vite dev modules. */
 async function clearDevServiceWorkerCaches(): Promise<void> {
@@ -35,8 +41,19 @@ function renderBootstrapError(message: string): void {
 
 async function bootstrap(): Promise<void> {
   applyAppearanceToDocument()
+  installStaleAssetRecovery()
   await clearDevServiceWorkerCaches()
 
+  const startupResult = await reconcileVersionOnStartup()
+  if (startupResult === 'reload') {
+    markReloadAttempt()
+    window.location.reload()
+    return
+  }
+  if (startupResult === 'recovered') {
+    return
+  }
+
   const rootEl = document.getElementById('root')
   if (!rootEl) {
     throw new Error('Missing #root element')

client/src/services/analytics.ts

@@ -34,7 +34,8 @@ export const PlausibleEvents = {
   LOCAL_PIN_SET: 'Local PIN Set',
   LOCAL_PIN_REMOVED: 'Local PIN Removed',
   DEVICE_FORGOTTEN: 'Device Forgotten',
-  RECOVERY_ROTATED: 'Recovery Rotated'
+  RECOVERY_ROTATED: 'Recovery Rotated',
+  LANGUAGE_CHANGED: 'Language Changed'
 } as const
 
 export type PlausibleEventName = (typeof PlausibleEvents)[keyof typeof PlausibleEvents]

client/src/services/appearancePrefs.test.ts

@@ -0,0 +1,96 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import {
+  fetchAppearancePrefs,
+  saveAppearancePrefsToServer,
+  syncAppearancePrefs
+} from './appearancePrefs.js'
+import { setThemePreference } from './userPreferences.js'
+
+const USER_ID = 'appearance-sync-user'
+
+vi.mock('./api.js', () => ({
+  apiJson: vi.fn()
+}))
+
+import { apiJson } from './api.js'
+
+const mockedApiJson = vi.mocked(apiJson)
+
+describe('appearancePrefs', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    vi.clearAllMocks()
+  })
+
+  it('fetchAppearancePrefs returns defaults when not authenticated', async () => {
+    await expect(fetchAppearancePrefs()).resolves.toEqual({
+      theme: 'auto',
+      colorScheme: 'auto',
+      persisted: false
+    })
+    expect(mockedApiJson).not.toHaveBeenCalled()
+  })
+
+  it('syncAppearancePrefs applies server prefs after cache wipe', async () => {
+    localStorage.setItem('active_userid', USER_ID)
+    mockedApiJson.mockResolvedValueOnce({
+      theme: 'ocean',
+      colorScheme: 'dark',
+      persisted: true
+    })
+
+    const changed = vi.fn()
+    window.addEventListener('appearance-changed', changed)
+
+    await syncAppearancePrefs(USER_ID)
+
+    expect(localStorage.getItem(`user_pref_theme_${USER_ID}`)).toBe('ocean')
+    expect(localStorage.getItem(`user_pref_color_scheme_${USER_ID}`)).toBe('dark')
+    expect(changed).toHaveBeenCalledTimes(1)
+  })
+
+  it('syncAppearancePrefs uploads local prefs when server has none', async () => {
+    localStorage.setItem('active_userid', USER_ID)
+    setThemePreference(USER_ID, 'material')
+    mockedApiJson
+      .mockResolvedValueOnce({ theme: 'auto', colorScheme: 'auto', persisted: false })
+      .mockResolvedValueOnce({ theme: 'material', colorScheme: 'auto', persisted: true })
+
+    await syncAppearancePrefs(USER_ID)
+
+    expect(mockedApiJson).toHaveBeenCalledTimes(2)
+    expect(mockedApiJson).toHaveBeenLastCalledWith('/api/auth/appearance-prefs', {
+      method: 'PUT',
+      body: JSON.stringify({ theme: 'material', colorScheme: 'auto' })
+    })
+  })
+
+  it('saveAppearancePrefsToServer skips when not authenticated', async () => {
+    await saveAppearancePrefsToServer('ocean', 'light')
+    expect(mockedApiJson).not.toHaveBeenCalled()
+  })
+
+  it('syncAppearancePrefs skips server sync when userId does not match active session', async () => {
+    localStorage.setItem('active_userid', 'session-user')
+    setThemePreference('other-user', 'ocean')
+    mockedApiJson.mockResolvedValue({
+      theme: 'material',
+      colorScheme: 'dark',
+      persisted: true
+    })
+
+    await syncAppearancePrefs('other-user')
+
+    expect(mockedApiJson).not.toHaveBeenCalled()
+    expect(localStorage.getItem('user_pref_theme_other-user')).toBe('ocean')
+  })
+
+  it('syncAppearancePrefs skips server sync when active session is missing', async () => {
+    setThemePreference(USER_ID, 'ocean')
+
+    await syncAppearancePrefs(USER_ID)
+
+    expect(mockedApiJson).not.toHaveBeenCalled()
+    expect(localStorage.getItem(`user_pref_theme_${USER_ID}`)).toBe('ocean')
+  })
+})

client/src/services/appearancePrefs.ts

@@ -0,0 +1,76 @@
+import { apiJson } from './api.js'
+import { notifyAppearanceChanged } from './appearance.js'
+import {
+  getActiveUserId,
+  getColorSchemePreference,
+  getThemePreference,
+  setColorSchemePreference,
+  setThemePreference
+} from './userPreferences.js'
+
+const API_BASE = '/api/auth/appearance-prefs'
+
+export interface AppearancePrefs {
+  theme: string
+  colorScheme: string
+  persisted: boolean
+}
+
+function hasLocalAppearancePrefs(userId: string): boolean {
+  return (
+    localStorage.getItem(`user_pref_theme_${userId}`) != null ||
+    localStorage.getItem(`user_pref_color_scheme_${userId}`) != null
+  )
+}
+
+function resolveSyncedUserId(userId?: string | null): string | null {
+  const id = userId?.trim() || getActiveUserId()?.trim() || null
+  if (!id) return null
+
+  const activeId = getActiveUserId()?.trim() || null
+  if (!activeId || activeId !== id) return null
+
+  return id
+}
+
+export async function fetchAppearancePrefs(userId?: string | null): Promise<AppearancePrefs> {
+  if (!resolveSyncedUserId(userId)) {
+    return { theme: 'auto', colorScheme: 'auto', persisted: false }
+  }
+
+  return apiJson<AppearancePrefs>(API_BASE)
+}
+
+export async function saveAppearancePrefsToServer(
+  theme: string,
+  colorScheme: string,
+  userId?: string | null
+): Promise<void> {
+  if (!resolveSyncedUserId(userId)) return
+
+  await apiJson<AppearancePrefs>(API_BASE, {
+    method: 'PUT',
+    body: JSON.stringify({ theme, colorScheme })
+  })
+}
+
+/** Merge server-stored appearance with local cache (server wins after cache wipe). */
+export async function syncAppearancePrefs(userId?: string | null): Promise<void> {
+  const id = resolveSyncedUserId(userId)
+  if (!id) return
+
+  try {
+    const server = await fetchAppearancePrefs(id)
+
+    if (server.persisted) {
+      setThemePreference(id, server.theme)
+      setColorSchemePreference(id, server.colorScheme)
+    } else if (hasLocalAppearancePrefs(id)) {
+      await saveAppearancePrefsToServer(getThemePreference(id), getColorSchemePreference(id), id)
+    }
+  } catch (err) {
+    console.warn('Failed to sync appearance preferences:', err)
+  }
+
+  notifyAppearanceChanged()
+}

client/src/services/csvExport.ts

@@ -88,6 +88,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
     'Latitude', 'Longitude', 'Remarks',
     'Freshwater Morning (L)', 'Freshwater Refilled (L)', 'Freshwater Evening (L)', 'Freshwater Consumption (L)',
     'Fuel Morning (L)', 'Fuel Refilled (L)', 'Fuel Evening (L)', 'Fuel Consumption (L)',
+    'Greywater Level (L)',
     'Yacht Name', 'Home Port', 'Owner', 'Charter Company', 'Registration', 'Callsign', 'ATIS', 'MMSI'
   ];
 
@@ -123,6 +124,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
     const fuelR = entry.fuel?.refilled ?? '';
     const fuelE = entry.fuel?.evening ?? '';
     const fuelCons = entry.fuel?.consumption ?? '';
+    const greywaterLevel = entry.greywater?.level ?? '';
 
     const eventsList = entry.events || [];
     if (eventsList.length === 0) {
@@ -137,6 +139,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
         '', '', '',
         fwM, fwR, fwE, fwCons,
         fuelM, fuelR, fuelE, fuelCons,
+        greywaterLevel,
         yachtName, homePort, owner, charter, registration, callsign, atis, mmsi
       ].map(escapeCsvValue));
     } else {
@@ -153,6 +156,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
           ev.gpsLat || '', ev.gpsLng || '', ev.remarks || '',
           fwM, fwR, fwE, fwCons,
           fuelM, fuelR, fuelE, fuelCons,
+          greywaterLevel,
           yachtName, homePort, owner, charter, registration, callsign, atis, mmsi
         ].map(escapeCsvValue));
       }

client/src/services/demoLogbookData.ts

@@ -1,6 +1,7 @@
 import { parseTrackFile } from './trackUpload.js'
 import { computeTrackStats } from '../utils/trackStats.js'
 import i18n from '../i18n/index.js'
+import { isGermanLocale } from '../utils/i18nLanguages.js'
 
 import kielLaboeGpx from '../assets/demo/kiel-laboe.gpx?raw'
 import laboeDampGpx from '../assets/demo/laboe-damp.gpx?raw'
@@ -26,6 +27,7 @@ export interface DemoDaySpec {
   filename: string
   freshwater: { morning: number; refilled: number; evening: number; consumption: number }
   fuel: { morning: number; refilled: number; evening: number; consumption: number }
+  greywaterLevel?: number
   motorHours?: number
   events: Array<Record<string, string>>
 }
@@ -58,7 +60,7 @@ export interface PublicDemoFixture {
 }
 
 export function buildDemoDays(): DemoDaySpec[] {
-  const isDe = i18n.language.startsWith('de')
+  const isDe = isGermanLocale(i18n.language)
   return [
     {
       date: '2026-05-29',
@@ -69,6 +71,7 @@ export function buildDemoDays(): DemoDaySpec[] {
       filename: 'kiel-laboe.gpx',
       freshwater: { morning: 120, refilled: 0, evening: 105, consumption: 15 },
       fuel: { morning: 85, refilled: 0, evening: 78, consumption: 7 },
+      greywaterLevel: 25,
       events: [
         {
           time: '10:15',
@@ -101,6 +104,7 @@ export function buildDemoDays(): DemoDaySpec[] {
       filename: 'laboe-damp.gpx',
       freshwater: { morning: 105, refilled: 25, evening: 110, consumption: 20 },
       fuel: { morning: 78, refilled: 0, evening: 70, consumption: 8 },
+      greywaterLevel: 38,
       motorHours: 1.5,
       events: [
         {
@@ -134,6 +138,7 @@ export function buildDemoDays(): DemoDaySpec[] {
       filename: 'damp-schleimuende.gpx',
       freshwater: { morning: 110, refilled: 0, evening: 95, consumption: 15 },
       fuel: { morning: 70, refilled: 15, evening: 80, consumption: 5 },
+      greywaterLevel: 52,
       events: [
         {
           time: '08:30',
@@ -161,7 +166,7 @@ export function buildDemoDays(): DemoDaySpec[] {
 }
 
 export function buildDemoYachtData(): Record<string, unknown> {
-  const isDe = i18n.language.startsWith('de')
+  const isDe = isGermanLocale(i18n.language)
   return {
     name: 'Seeadler',
     vesselType: isDe ? 'Segelyacht' : 'Sailing yacht',
@@ -176,12 +181,15 @@ export function buildDemoYachtData(): Record<string, unknown> {
     atis: '',
     mmsi: '',
     sails: isDe ? ['Großsegel', 'Genua', 'Spinnaker'] : ['Mainsail', 'Genoa', 'Spinnaker'],
-    photo: null
+    photo: null,
+    freshwaterCapacityL: 200,
+    fuelCapacityL: 100,
+    greywaterCapacityL: 80
   }
 }
 
 export function buildDemoCrewRecords(): DemoCrewRecord[] {
-  const isDe = i18n.language.startsWith('de')
+  const isDe = isGermanLocale(i18n.language)
   return [
     {
       payloadId: 'skipper',
@@ -244,6 +252,10 @@ export function buildPublicDemoFixture(): PublicDemoFixture {
       events: day.events
     }
 
+    if (day.greywaterLevel != null && day.greywaterLevel > 0) {
+      entryPayload.greywater = { level: day.greywaterLevel }
+    }
+
     if (stats) {
       entryPayload.trackDistanceNm = stats.distanceNm
       entryPayload.trackSpeedMaxKn = stats.speedMaxKn
@@ -303,6 +315,10 @@ export function buildDemoEntryPayloads(): Array<{
       events: day.events
     }
 
+    if (day.greywaterLevel != null && day.greywaterLevel > 0) {
+      entryPayload.greywater = { level: day.greywaterLevel }
+    }
+
     if (stats) {
       entryPayload.trackDistanceNm = stats.distanceNm
       entryPayload.trackSpeedMaxKn = stats.speedMaxKn

client/src/services/feedback.ts

@@ -1,6 +1,6 @@
 import { apiFetch } from './api.js'
 
-export type FeedbackCategory = 'bug' | 'feature' | 'general'
+export type FeedbackCategory = 'bug' | 'feature' | 'general' | 'translation'
 
 export class FeedbackApiError extends Error {
   code: 'NOT_CONFIGURED' | 'REQUEST_FAILED' | 'INVALID_EMAIL' | 'RATE_LIMITED' | 'SPAM_DETECTED'

client/src/services/pdfExport.ts

@@ -197,13 +197,15 @@ export async function generateLogbookPagePdf(logbookId: string, entryId: string,
   doc.text('VERBRAUCHSWERTE / CONSUMPTON STATS', 10, footerY + 3);
 
   let fwY = footerY + 5;
-  doc.rect(10, fwY, 110, rowHeight * 3, 'S');
+  const tankRows = 4;
+  doc.rect(10, fwY, 110, rowHeight * tankRows, 'S');
   doc.line(10, fwY + rowHeight, 120, fwY + rowHeight);
   doc.line(10, fwY + rowHeight * 2, 120, fwY + rowHeight * 2);
-  doc.line(40, fwY, 40, fwY + rowHeight * 3);
-  doc.line(60, fwY, 60, fwY + rowHeight * 3);
-  doc.line(80, fwY, 80, fwY + rowHeight * 3);
-  doc.line(100, fwY, 100, fwY + rowHeight * 3);
+  doc.line(10, fwY + rowHeight * 3, 120, fwY + rowHeight * 3);
+  doc.line(40, fwY, 40, fwY + rowHeight * tankRows);
+  doc.line(60, fwY, 60, fwY + rowHeight * tankRows);
+  doc.line(80, fwY, 80, fwY + rowHeight * tankRows);
+  doc.line(100, fwY, 100, fwY + rowHeight * tankRows);
 
   doc.setFont('Helvetica', 'bold');
   doc.setFontSize(7.5);
@@ -226,6 +228,12 @@ export async function generateLogbookPagePdf(logbookId: string, entryId: string,
   doc.text(String(entry.fuel?.evening ?? '0'), 81, fwY + rowHeight * 2 + 4.2);
   doc.text(String(entry.fuel?.consumption ?? '0'), 101, fwY + rowHeight * 2 + 4.2);
 
+  doc.text('Grauwasser', 11, fwY + rowHeight * 3 + 4.2);
+  doc.text('—', 41, fwY + rowHeight * 3 + 4.2);
+  doc.text('—', 61, fwY + rowHeight * 3 + 4.2);
+  doc.text(String(entry.greywater?.level ?? '0'), 81, fwY + rowHeight * 3 + 4.2);
+  doc.text('—', 101, fwY + rowHeight * 3 + 4.2);
+
   // Signatures Box
   let sigX = 130;
   let sigY = footerY + 5;

client/src/services/pushNotifications.ts

@@ -43,6 +43,18 @@ async function fetchVapidPublicKey(): Promise<string | null> {
   }
 }
 
+/** True when crew-change push is enabled and notification permission is granted. */
+export async function isCollaboratorPushActive(): Promise<boolean> {
+  if (!isPushSupported()) return false
+  if (getNotificationPermission() !== 'granted') return false
+  try {
+    const prefs = await fetchPushPrefs()
+    return prefs.collaboratorChangesEnabled
+  } catch {
+    return false
+  }
+}
+
 export async function fetchPushPrefs(): Promise<{ collaboratorChangesEnabled: boolean }> {
   if (!localStorage.getItem('active_userid')) {
     return { collaboratorChangesEnabled: false }

client/src/services/pwaStartup.test.ts

@@ -0,0 +1,146 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import {
+  forcePwaRecovery,
+  markReloadAttempt,
+  recentlyAttemptedReload,
+  reconcileServiceWorkerOnStartup,
+  reconcileVersionOnStartup
+} from './pwaStartup.js'
+
+const STALE_RECOVERY_COUNT_KEY = 'pwa_stale_recovery_count'
+const STALE_RECOVERY_LAST_KEY = 'pwa_stale_recovery_last_ts'
+
+describe('pwaStartup reload guards', () => {
+  beforeEach(() => {
+    sessionStorage.clear()
+  })
+
+  it('blocks repeated reload attempts within the debounce window', () => {
+    expect(recentlyAttemptedReload(10_000)).toBe(false)
+    markReloadAttempt(10_000)
+    expect(recentlyAttemptedReload(12_000)).toBe(true)
+    expect(recentlyAttemptedReload(15_000)).toBe(false)
+  })
+})
+
+describe('forcePwaRecovery stale counter reset', () => {
+  beforeEach(() => {
+    sessionStorage.clear()
+    vi.unstubAllEnvs()
+    vi.restoreAllMocks()
+  })
+
+  it('clears stale recovery counter before hard recovery reload', async () => {
+    vi.stubEnv('DEV', false)
+    sessionStorage.setItem(STALE_RECOVERY_COUNT_KEY, '2')
+    sessionStorage.setItem(STALE_RECOVERY_LAST_KEY, String(Date.now()))
+
+    const reload = vi.fn()
+    vi.stubGlobal('location', { reload })
+    vi.stubGlobal('caches', {
+      keys: vi.fn().mockResolvedValue([]),
+      delete: vi.fn()
+    })
+    Object.defineProperty(navigator, 'serviceWorker', {
+      configurable: true,
+      value: {
+        getRegistrations: vi.fn().mockResolvedValue([])
+      }
+    })
+
+    await forcePwaRecovery()
+
+    expect(sessionStorage.getItem(STALE_RECOVERY_COUNT_KEY)).toBeNull()
+    expect(sessionStorage.getItem(STALE_RECOVERY_LAST_KEY)).toBeNull()
+    expect(reload).toHaveBeenCalledOnce()
+  })
+
+  it('returns false when hard recovery was just attempted', async () => {
+    sessionStorage.setItem('pwa_hard_recovery_ts', String(Date.now()))
+    const result = await forcePwaRecovery()
+    expect(result).toBe(false)
+  })
+})
+
+describe('reconcileServiceWorkerOnStartup', () => {
+  beforeEach(() => {
+    sessionStorage.clear()
+    vi.unstubAllEnvs()
+  })
+
+  it('returns false in dev mode', async () => {
+    vi.stubEnv('DEV', true)
+    await expect(reconcileServiceWorkerOnStartup()).resolves.toBe(false)
+  })
+
+  it('returns false when no waiting worker exists', async () => {
+    vi.stubEnv('DEV', false)
+    Object.defineProperty(navigator, 'serviceWorker', {
+      configurable: true,
+      value: {
+        controller: {},
+        getRegistration: vi.fn().mockResolvedValue({
+          waiting: null,
+          installing: null,
+          update: vi.fn().mockResolvedValue(undefined),
+          addEventListener: vi.fn()
+        }),
+        addEventListener: vi.fn()
+      }
+    })
+
+    await expect(reconcileServiceWorkerOnStartup()).resolves.toBe(false)
+  })
+
+  it('returns false when waiting worker activation never takes over', async () => {
+    vi.useFakeTimers()
+    const postMessage = vi.fn()
+    const addEventListener = vi.fn()
+    vi.stubEnv('DEV', false)
+
+    Object.defineProperty(navigator, 'serviceWorker', {
+      configurable: true,
+      value: {
+        controller: { scriptURL: '/sw.js?v=1' },
+        getRegistration: vi.fn().mockResolvedValue({
+          waiting: { postMessage },
+          installing: null,
+          update: vi.fn().mockResolvedValue(undefined),
+          addEventListener: vi.fn()
+        }),
+        addEventListener
+      }
+    })
+
+    const reconcilePromise = reconcileServiceWorkerOnStartup()
+    await vi.advanceTimersByTimeAsync(4_000)
+
+    await expect(reconcilePromise).resolves.toBe(false)
+    expect(postMessage).toHaveBeenCalledWith({ type: 'SKIP_WAITING' })
+    vi.useRealTimers()
+  })
+})
+
+describe('reconcileVersionOnStartup', () => {
+  beforeEach(() => {
+    sessionStorage.clear()
+    vi.unstubAllEnvs()
+    vi.restoreAllMocks()
+  })
+
+  it('returns noop in dev mode', async () => {
+    vi.stubEnv('DEV', true)
+    await expect(reconcileVersionOnStartup()).resolves.toBe('noop')
+  })
+
+  it('returns noop when deployed version matches bundled version', async () => {
+    vi.stubEnv('DEV', false)
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue({
+      ok: true,
+      json: async () => ({ version: '0.1.0.57' })
+    }))
+    vi.stubGlobal('__APP_VERSION__', '0.1.0.57')
+
+    await expect(reconcileVersionOnStartup()).resolves.toBe('noop')
+  })
+})

client/src/services/pwaStartup.ts

@@ -0,0 +1,289 @@
+import { isNewerAppVersion, fetchDeployedVersion, getAppVersion } from './pwaVersion.js'
+
+const RELOAD_ATTEMPT_KEY = 'pwa_reload_attempt_ts'
+const COLD_START_UPDATE_KEY = 'pwa_coldstart_update_ts'
+const HARD_RECOVERY_KEY = 'pwa_hard_recovery_ts'
+const STALE_RECOVERY_COUNT_KEY = 'pwa_stale_recovery_count'
+const STALE_RECOVERY_LAST_KEY = 'pwa_stale_recovery_last_ts'
+const STALE_RECOVERY_WINDOW_MS = 60_000
+const RELOAD_DEBOUNCE_MS = 4_000
+const COLD_START_UPDATE_DEBOUNCE_MS = 15_000
+const HARD_RECOVERY_DEBOUNCE_MS = 30_000
+
+export function recentlyAttemptedReload(now = Date.now()): boolean {
+  const last = Number(sessionStorage.getItem(RELOAD_ATTEMPT_KEY) || '0')
+  return now - last < RELOAD_DEBOUNCE_MS
+}
+
+export function markReloadAttempt(now = Date.now()): void {
+  sessionStorage.setItem(RELOAD_ATTEMPT_KEY, String(now))
+}
+
+function recentlyAttemptedColdStartUpdate(now = Date.now()): boolean {
+  const last = Number(sessionStorage.getItem(COLD_START_UPDATE_KEY) || '0')
+  return now - last < COLD_START_UPDATE_DEBOUNCE_MS
+}
+
+function markColdStartUpdateAttempt(now = Date.now()): void {
+  sessionStorage.setItem(COLD_START_UPDATE_KEY, String(now))
+}
+
+function recentlyAttemptedHardRecovery(now = Date.now()): boolean {
+  const last = Number(sessionStorage.getItem(HARD_RECOVERY_KEY) || '0')
+  return now - last < HARD_RECOVERY_DEBOUNCE_MS
+}
+
+function markHardRecoveryAttempt(now = Date.now()): void {
+  sessionStorage.setItem(HARD_RECOVERY_KEY, String(now))
+}
+
+function resetStaleRecoveryCount(): void {
+  sessionStorage.removeItem(STALE_RECOVERY_COUNT_KEY)
+  sessionStorage.removeItem(STALE_RECOVERY_LAST_KEY)
+}
+
+function incrementStaleRecoveryCount(now = Date.now()): number {
+  const last = Number(sessionStorage.getItem(STALE_RECOVERY_LAST_KEY) || '0')
+  let current = Number(sessionStorage.getItem(STALE_RECOVERY_COUNT_KEY) || '0')
+
+  if (now - last > STALE_RECOVERY_WINDOW_MS) {
+    current = 0
+  }
+
+  const next = current + 1
+  sessionStorage.setItem(STALE_RECOVERY_COUNT_KEY, String(next))
+  sessionStorage.setItem(STALE_RECOVERY_LAST_KEY, String(now))
+  return next
+}
+
+function isStaleModuleLoadError(error: unknown): boolean {
+  const message =
+    error instanceof Error
+      ? error.message
+      : typeof error === 'string'
+        ? error
+        : ''
+
+  return (
+    message.includes('Failed to fetch dynamically imported module') ||
+    message.includes('Importing a module script failed') ||
+    message.includes('error loading dynamically imported module') ||
+    message.includes('Loading chunk') ||
+    message.includes('ChunkLoadError') ||
+    message.includes('Unable to preload CSS')
+  )
+}
+
+export async function clearPwaCachesAndWorkers(): Promise<void> {
+  if ('serviceWorker' in navigator) {
+    const registrations = await navigator.serviceWorker.getRegistrations()
+    await Promise.all(registrations.map((registration) => registration.unregister()))
+  }
+
+  if ('caches' in window) {
+    const keys = await caches.keys()
+    await Promise.all(keys.map((key) => caches.delete(key)))
+  }
+}
+
+/**
+ * Last-resort recovery when soft reloads cannot escape a stale precache.
+ * Equivalent to manually clearing site data / reinstalling the PWA.
+ */
+export async function forcePwaRecovery(): Promise<boolean> {
+  if (recentlyAttemptedHardRecovery()) return false
+
+  markHardRecoveryAttempt()
+  markReloadAttempt()
+  resetStaleRecoveryCount()
+  await clearPwaCachesAndWorkers()
+  window.location.reload()
+  return true
+}
+
+async function waitForWaitingWorker(
+  registration: ServiceWorkerRegistration,
+  timeoutMs: number
+): Promise<ServiceWorker | null> {
+  if (registration.waiting) {
+    return registration.waiting
+  }
+
+  return new Promise((resolve) => {
+    const timeoutId = window.setTimeout(() => resolve(null), timeoutMs)
+
+    const inspectWorker = (worker: ServiceWorker | null) => {
+      if (!worker) return
+
+      if (worker.state === 'installed' && navigator.serviceWorker.controller) {
+        window.clearTimeout(timeoutId)
+        resolve(worker)
+        return
+      }
+
+      worker.addEventListener(
+        'statechange',
+        () => {
+          if (worker.state === 'installed' && navigator.serviceWorker.controller) {
+            window.clearTimeout(timeoutId)
+            resolve(worker)
+          }
+        },
+        { once: true }
+      )
+    }
+
+    inspectWorker(registration.installing)
+
+    registration.addEventListener(
+      'updatefound',
+      () => {
+        inspectWorker(registration.installing)
+      },
+      { once: true }
+    )
+  })
+}
+
+export async function triggerServiceWorkerUpdate(timeoutMs = 5_000): Promise<boolean> {
+  if (import.meta.env.DEV || !('serviceWorker' in navigator)) {
+    return false
+  }
+
+  const registration = await navigator.serviceWorker.getRegistration()
+  if (!registration) return false
+
+  try {
+    await registration.update()
+  } catch {
+    return false
+  }
+
+  const waiting = await waitForWaitingWorker(registration, timeoutMs)
+  return waiting !== null
+}
+
+async function activateWaitingWorker(waiting: ServiceWorker): Promise<boolean> {
+  const currentController = navigator.serviceWorker.controller?.scriptURL ?? null
+  waiting.postMessage({ type: 'SKIP_WAITING' })
+
+  return new Promise<boolean>((resolve) => {
+    const timeoutId = window.setTimeout(() => resolve(false), 4_000)
+    navigator.serviceWorker.addEventListener(
+      'controllerchange',
+      () => {
+        window.clearTimeout(timeoutId)
+        const nextController = navigator.serviceWorker.controller?.scriptURL ?? null
+        resolve(nextController !== null && nextController !== currentController)
+      },
+      { once: true }
+    )
+  })
+}
+
+/**
+ * After missed deploys, a waiting SW may exist while the page still runs an old bundle.
+ * Apply the waiting worker once on cold start (one controlled reload) instead of hanging.
+ */
+export async function reconcileServiceWorkerOnStartup(): Promise<boolean> {
+  if (import.meta.env.DEV || !('serviceWorker' in navigator)) {
+    return false
+  }
+
+  if (recentlyAttemptedColdStartUpdate()) {
+    return false
+  }
+
+  const registration = await navigator.serviceWorker.getRegistration()
+  let waiting = registration?.waiting ?? null
+
+  if (!waiting && registration) {
+    await registration.update().catch(() => {})
+    waiting = await waitForWaitingWorker(registration, 4_000)
+  }
+
+  if (!waiting || !navigator.serviceWorker.controller) {
+    return false
+  }
+
+  const activated = await activateWaitingWorker(waiting)
+  if (activated) {
+    markColdStartUpdateAttempt()
+  }
+  return activated
+}
+
+/**
+ * Compare deployed version.json with the bundled app version.
+ * When the server is ahead, try a soft SW takeover before hard recovery.
+ */
+export async function reconcileVersionOnStartup(): Promise<'reload' | 'recovered' | 'noop'> {
+  if (import.meta.env.DEV || !navigator.onLine) {
+    return 'noop'
+  }
+
+  const deployedVersion = await fetchDeployedVersion()
+  if (!deployedVersion || !isNewerAppVersion(deployedVersion, getAppVersion())) {
+    return 'noop'
+  }
+
+  const reconciled = await reconcileServiceWorkerOnStartup()
+  if (reconciled) {
+    return 'reload'
+  }
+
+  const updated = await triggerServiceWorkerUpdate()
+  if (updated) {
+    const registration = await navigator.serviceWorker.getRegistration()
+    const waiting = registration?.waiting
+    if (waiting) {
+      const activated = await activateWaitingWorker(waiting)
+      if (activated) {
+        markColdStartUpdateAttempt()
+        return 'reload'
+      }
+    }
+  }
+
+  if (!recentlyAttemptedHardRecovery()) {
+    const recovered = await forcePwaRecovery()
+    if (recovered) {
+      return 'recovered'
+    }
+  }
+
+  return 'noop'
+}
+
+export function installStaleAssetRecovery(): void {
+  if (import.meta.env.DEV) return
+
+  const recoverFromStaleAssets = () => {
+    if (recentlyAttemptedReload()) return
+
+    const attempts = incrementStaleRecoveryCount()
+    markReloadAttempt()
+
+    if (attempts >= 2) {
+      void forcePwaRecovery()
+      return
+    }
+
+    window.location.reload()
+  }
+
+  window.addEventListener('unhandledrejection', (event) => {
+    if (!isStaleModuleLoadError(event.reason)) return
+    event.preventDefault()
+    recoverFromStaleAssets()
+  })
+
+  window.addEventListener(
+    'error',
+    (event) => {
+      if (!isStaleModuleLoadError(event.message)) return
+      recoverFromStaleAssets()
+    },
+    true
+  )
+}

client/src/services/pwaVersion.test.ts

@@ -0,0 +1,23 @@
+import { describe, expect, it } from 'vitest'
+import {
+  compareAppVersions,
+  isNewerAppVersion,
+  parseAppVersion
+} from './pwaVersion.js'
+
+describe('pwaVersion', () => {
+  it('parses semantic build versions', () => {
+    expect(parseAppVersion('v0.1.0.57')).toEqual([0, 1, 0, 57])
+  })
+
+  it('compares build numbers numerically', () => {
+    expect(compareAppVersions('0.1.0.65', '0.1.0.57')).toBeGreaterThan(0)
+    expect(compareAppVersions('0.1.0.57', '0.1.0.65')).toBeLessThan(0)
+    expect(compareAppVersions('0.1.0.57', '0.1.0.57')).toBe(0)
+  })
+
+  it('detects newer deployed versions', () => {
+    expect(isNewerAppVersion('0.1.0.66', '0.1.0.57')).toBe(true)
+    expect(isNewerAppVersion('0.1.0.57', '0.1.0.57')).toBe(false)
+  })
+})

client/src/services/pwaVersion.ts

@@ -0,0 +1,59 @@
+const APP_VERSION =
+  typeof __APP_VERSION__ !== 'undefined' ? __APP_VERSION__ : '0.0.0.0-dev'
+
+export function getAppVersion(): string {
+  return APP_VERSION
+}
+
+export function parseAppVersion(version: string): number[] {
+  return version
+    .replace(/^v/i, '')
+    .split('.')
+    .map((part) => Number.parseInt(part, 10) || 0)
+}
+
+/** Positive when `a` is newer than `b`. */
+export function compareAppVersions(a: string, b: string): number {
+  const partsA = parseAppVersion(a)
+  const partsB = parseAppVersion(b)
+  const length = Math.max(partsA.length, partsB.length)
+
+  for (let index = 0; index < length; index += 1) {
+    const diff = (partsA[index] ?? 0) - (partsB[index] ?? 0)
+    if (diff !== 0) return diff
+  }
+
+  return 0
+}
+
+export function isNewerAppVersion(serverVersion: string, clientVersion: string): boolean {
+  return compareAppVersions(serverVersion, clientVersion) > 0
+}
+
+export async function fetchDeployedVersion(timeoutMs = 4_000): Promise<string | null> {
+  if (!navigator.onLine) return null
+
+  const controller = new AbortController()
+  const timeoutId = window.setTimeout(() => controller.abort(), timeoutMs)
+
+  try {
+    const response = await fetch(`/version.json?_=${Date.now()}`, {
+      cache: 'no-store',
+      signal: controller.signal
+    })
+    if (!response.ok) return null
+
+    const payload = (await response.json()) as { version?: unknown }
+    return typeof payload.version === 'string' ? payload.version.trim() : null
+  } catch {
+    return null
+  } finally {
+    window.clearTimeout(timeoutId)
+  }
+}
+
+export async function isDeployedVersionNewer(): Promise<boolean> {
+  const deployedVersion = await fetchDeployedVersion()
+  if (!deployedVersion) return false
+  return isNewerAppVersion(deployedVersion, getAppVersion())
+}

client/src/sw.ts

@@ -1,10 +1,37 @@
 /// <reference lib="webworker" />
-import { cleanupOutdatedCaches, precacheAndRoute } from 'workbox-precaching'
+import { clientsClaim } from 'workbox-core'
+import { cleanupOutdatedCaches, createHandlerBoundToURL, precacheAndRoute } from 'workbox-precaching'
+import { registerRoute } from 'workbox-routing'
+import { NetworkFirst, NetworkOnly } from 'workbox-strategies'
 
 declare let self: ServiceWorkerGlobalScope
 
+const appShellFallback = createHandlerBoundToURL('/index.html')
+const navigationStrategy = new NetworkFirst({
+  cacheName: 'app-shell',
+  networkTimeoutSeconds: 3
+})
+
+registerRoute(({ request }) => request.mode === 'navigate', async (context) => {
+  try {
+    return await navigationStrategy.handle(context)
+  } catch {
+    return appShellFallback(context)
+  }
+})
+
 precacheAndRoute(self.__WB_MANIFEST)
 cleanupOutdatedCaches()
+clientsClaim()
+
+// Always fetch the live deploy version, even under an older precache.
+registerRoute(({ url }) => url.pathname === '/version.json', new NetworkOnly())
+
+self.addEventListener('message', (event) => {
+  if (event.data?.type === 'SKIP_WAITING') {
+    void self.skipWaiting()
+  }
+})
 
 interface PushPayload {
   title?: string

client/src/utils/dateTimeFormat.ts

@@ -1,7 +1,17 @@
+import { normalizeAppLanguage } from './i18nLanguages.js'
+
+const INTL_LOCALES: Record<string, string> = {
+  de: 'de-DE',
+  en: 'en-GB',
+  da: 'da-DK',
+  sv: 'sv-SE',
+  nb: 'nb-NO'
+}
+
 /** BCP 47 locales that use 24-hour clock for Intl formatting. */
 export function resolveIntlLocale(language?: string): string {
-  const lng = (language ?? 'en').toLowerCase()
-  return lng.startsWith('de') ? 'de-DE' : 'en-GB'
+  const lng = normalizeAppLanguage(language)
+  return INTL_LOCALES[lng] ?? 'en-GB'
 }
 
 const APP_DATE_TIME_OPTIONS: Intl.DateTimeFormatOptions = {

client/src/utils/i18nLanguages.test.ts

@@ -0,0 +1,83 @@
+import type { i18n as I18nInstance } from 'i18next'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { PlausibleEvents } from '../services/analytics.js'
+import {
+  changeAppLanguage,
+  cycleAppLanguage,
+  getNextLanguage,
+  normalizeAppLanguage,
+  SUPPORTED_LANGUAGES
+} from './i18nLanguages.js'
+
+const trackPlausibleEvent = vi.fn()
+
+vi.mock('../services/analytics.js', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../services/analytics.js')>()
+  return {
+    ...actual,
+    trackPlausibleEvent: (...args: unknown[]) => trackPlausibleEvent(...args)
+  }
+})
+
+function createMockI18n(language: string): I18nInstance {
+  let current = language
+  return {
+    language: current,
+    changeLanguage: vi.fn(async (lng: string) => {
+      current = lng
+      ;(this as { language: string }).language = lng
+    })
+  } as unknown as I18nInstance
+}
+
+describe('i18nLanguages', () => {
+  beforeEach(() => {
+    trackPlausibleEvent.mockReset()
+  })
+
+  it('normalizes regional tags to supported base codes', () => {
+    expect(normalizeAppLanguage('de-DE')).toBe('de')
+    expect(normalizeAppLanguage('nb-NO')).toBe('nb')
+    expect(normalizeAppLanguage('xx')).toBe('en')
+  })
+
+  it('cycles through all supported languages', () => {
+    let current: string = 'de'
+    const seen = new Set<string>()
+    for (let i = 0; i < SUPPORTED_LANGUAGES.length; i++) {
+      seen.add(current)
+      current = getNextLanguage(current)
+    }
+    expect(seen.size).toBe(SUPPORTED_LANGUAGES.length)
+    expect(current).toBe('de')
+  })
+
+  it('tracks explicit language changes', () => {
+    const i18n = createMockI18n('de')
+    changeAppLanguage(i18n, 'sv')
+
+    expect(i18n.changeLanguage).toHaveBeenCalledWith('sv')
+    expect(trackPlausibleEvent).toHaveBeenCalledWith(PlausibleEvents.LANGUAGE_CHANGED, {
+      from: 'de',
+      to: 'sv'
+    })
+  })
+
+  it('does not track when language stays the same', () => {
+    const i18n = createMockI18n('en')
+    changeAppLanguage(i18n, 'en')
+
+    expect(i18n.changeLanguage).not.toHaveBeenCalled()
+    expect(trackPlausibleEvent).not.toHaveBeenCalled()
+  })
+
+  it('cycleAppLanguage tracks the next language', () => {
+    const i18n = createMockI18n('nb')
+    cycleAppLanguage(i18n)
+
+    expect(trackPlausibleEvent).toHaveBeenCalledWith(PlausibleEvents.LANGUAGE_CHANGED, {
+      from: 'nb',
+      to: 'de'
+    })
+  })
+})

client/src/utils/i18nLanguages.ts

@@ -0,0 +1,39 @@
+import type { i18n as I18nInstance } from 'i18next'
+import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
+
+/** Supported UI languages (ISO 639-1, language-only). */
+export const SUPPORTED_LANGUAGES = ['de', 'en', 'da', 'sv', 'nb'] as const
+
+export type AppLanguage = (typeof SUPPORTED_LANGUAGES)[number]
+
+export function normalizeAppLanguage(language?: string): AppLanguage {
+  const base = (language ?? 'en').split('-')[0].toLowerCase()
+  if ((SUPPORTED_LANGUAGES as readonly string[]).includes(base)) {
+    return base as AppLanguage
+  }
+  return 'en'
+}
+
+export function getNextLanguage(current?: string): AppLanguage {
+  const active = normalizeAppLanguage(current)
+  const index = SUPPORTED_LANGUAGES.indexOf(active)
+  return SUPPORTED_LANGUAGES[(index + 1) % SUPPORTED_LANGUAGES.length]
+}
+
+export function isGermanLocale(language?: string): boolean {
+  return normalizeAppLanguage(language) === 'de'
+}
+
+/** Switch UI language and track explicit user choice (not auto-detection). */
+export function changeAppLanguage(i18n: I18nInstance, language: AppLanguage): void {
+  const from = normalizeAppLanguage(i18n.language)
+  const to = normalizeAppLanguage(language)
+  if (from === to) return
+
+  void i18n.changeLanguage(to)
+  trackPlausibleEvent(PlausibleEvents.LANGUAGE_CHANGED, { from, to })
+}
+
+export function cycleAppLanguage(i18n: I18nInstance): void {
+  changeAppLanguage(i18n, getNextLanguage(i18n.language))
+}

client/src/utils/locale.test.ts

@@ -3,7 +3,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest'
 import { resolveIntlLocale } from './dateTimeFormat.js'
 import { initSeo, normalizeSeoLang, updatePageSeo } from './seo.js'
 
-const HTML_LANG = /^de|en$/
+const SUPPORTED_HTML_LANG = /^de|en|da|sv|nb$/
 
 function createMockI18n(language: string): I18nInstance {
   return {
@@ -20,7 +20,9 @@ describe('normalizeSeoLang', () => {
     ['de-DE', 'de'],
     ['en', 'en'],
     ['en-US', 'en'],
-    ['en-GB', 'en']
+    ['da', 'da'],
+    ['sv-SE', 'sv'],
+    ['nb-NO', 'nb']
   ] as const)('maps %s to short code %s', (input, expected) => {
     expect(normalizeSeoLang(input)).toBe(expected)
   })
@@ -35,13 +37,15 @@ describe('updatePageSeo html lang', () => {
   it.each([
     ['de', 'de'],
     ['en', 'en'],
-    ['en-GB', 'en']
+    ['da', 'da'],
+    ['sv', 'sv'],
+    ['nb', 'nb']
   ] as const)('sets html lang to %s when i18n language is %s', (i18nLanguage, expectedLang) => {
     initSeo(createMockI18n(i18nLanguage))
     updatePageSeo()
 
     expect(document.documentElement.lang).toBe(expectedLang)
-    expect(document.documentElement.lang).toMatch(HTML_LANG)
+    expect(document.documentElement.lang).toMatch(SUPPORTED_HTML_LANG)
   })
 })
 
@@ -49,14 +53,17 @@ describe('resolveIntlLocale', () => {
   it('uses full BCP 47 tags for Intl formatting only', () => {
     expect(resolveIntlLocale('de')).toBe('de-DE')
     expect(resolveIntlLocale('en')).toBe('en-GB')
+    expect(resolveIntlLocale('da')).toBe('da-DK')
+    expect(resolveIntlLocale('sv')).toBe('sv-SE')
+    expect(resolveIntlLocale('nb')).toBe('nb-NO')
   })
 
   it('does not reuse Intl locale tags for html lang', () => {
-    const intlLocale = resolveIntlLocale('en')
-    const htmlLang = normalizeSeoLang('en')
+    const intlLocale = resolveIntlLocale('nb')
+    const htmlLang = normalizeSeoLang('nb')
 
-    expect(intlLocale).toBe('en-GB')
-    expect(htmlLang).toBe('en')
+    expect(intlLocale).toBe('nb-NO')
+    expect(htmlLang).toBe('nb')
     expect(htmlLang).not.toBe(intlLocale)
   })
 })

client/src/utils/logEntryPayload.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from 'vitest'
 import {
+  buildLogEntryPayload,
   hasUnsavedEventDraft,
   isLogEventDraftEmpty,
   normalizeLogEvent,
@@ -40,3 +41,25 @@ describe('logEntryPayload event drafts', () => {
     expect(hasUnsavedEventDraft(filledDraft(), 0, events)).toBe(false)
   })
 })
+
+describe('buildLogEntryPayload greywater', () => {
+  const base = {
+    date: '2026-05-31',
+    dayOfTravel: '1',
+    departure: 'Kiel',
+    destination: 'Laboe',
+    freshwater: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+    fuel: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+    events: [] as LogEventPayload[]
+  }
+
+  it('includes greywater when level > 0', () => {
+    const payload = buildLogEntryPayload({ ...base, greywater: { level: 45 } })
+    expect(payload.greywater).toEqual({ level: 45 })
+  })
+
+  it('omits greywater when level is 0', () => {
+    const payload = buildLogEntryPayload({ ...base, greywater: { level: 0 } })
+    expect(payload.greywater).toBeUndefined()
+  })
+})

client/src/utils/logEntryPayload.ts

@@ -144,6 +144,7 @@ export interface LogEntryPayloadInput {
   destination: string
   freshwater: { morning: number; refilled: number; evening: number; consumption: number }
   fuel: { morning: number; refilled: number; evening: number; consumption: number }
+  greywater?: { level: number }
   trackDistanceNm?: number
   trackSpeedMaxKn?: number
   trackSpeedAvgKn?: number
@@ -169,5 +170,12 @@ export function buildLogEntryPayload(input: LogEntryPayloadInput): Record<string
     payload.motorHours = Number(input.motorHours.toFixed(2))
   }
 
+  if (input.greywater !== undefined) {
+    const level = Number(input.greywater.level) || 0
+    if (level > 0) {
+      payload.greywater = { level: Number(level.toFixed(1)) }
+    }
+  }
+
   return payload
 }

client/src/utils/logEntryTankLevels.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it } from 'vitest'
+import {
+  carryOverFromPreviousDay,
+  getClosingGreywaterLevel,
+  hasCarryOverFromPreviousDay
+} from './logEntryTankLevels.js'
+
+describe('logEntryTankLevels greywater carry-over', () => {
+  it('returns previous greywater level as starting value', () => {
+    const carryOver = carryOverFromPreviousDay({
+      destination: 'Oslo',
+      freshwater: { morning: 100, refilled: 0, evening: 80, consumption: 20 },
+      fuel: { morning: 200, refilled: 0, evening: 150, consumption: 50 },
+      greywater: { level: 42 }
+    })
+
+    expect(carryOver.greywaterLevel).toBe(42)
+    expect(carryOver.freshwater.morning).toBe(80)
+    expect(carryOver.fuel.morning).toBe(150)
+    expect(carryOver.departure).toBe('Oslo')
+  })
+
+  it('defaults greywater to 0 when previous day has none', () => {
+    expect(carryOverFromPreviousDay(null).greywaterLevel).toBe(0)
+    expect(getClosingGreywaterLevel(undefined)).toBe(0)
+  })
+
+  it('treats greywater level as carry-over candidate', () => {
+    expect(
+      hasCarryOverFromPreviousDay({
+        freshwater: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+        fuel: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+        greywaterLevel: 15,
+        departure: ''
+      })
+    ).toBe(true)
+  })
+})

client/src/utils/logEntryTankLevels.ts

@@ -41,12 +41,14 @@ export function getClosingTankLevel(tank?: Partial<TankLevels> | null): number {
 export interface LogEntryTankSource {
   freshwater?: Partial<TankLevels>
   fuel?: Partial<TankLevels>
+  greywater?: { level?: number }
   destination?: string
 }
 
 export interface CarryOverFromPreviousDay {
   freshwater: TankLevels
   fuel: TankLevels
+  greywaterLevel: number
   departure: string
 }
 
@@ -59,6 +61,10 @@ export function formatTankLiters(liters: number): string {
   return Number.isInteger(liters) ? String(liters) : liters.toFixed(1)
 }
 
+export function getClosingGreywaterLevel(greywater?: { level?: number } | null): number {
+  return Number(greywater?.level) || 0
+}
+
 export function carryOverTankLevelsFromPreviousDay(previousEntry?: LogEntryTankSource | null): { freshwater: TankLevels; fuel: TankLevels } {
   if (!previousEntry) {
     return { freshwater: emptyTankLevels(), fuel: emptyTankLevels() }
@@ -73,10 +79,16 @@ export function carryOverTankLevelsFromPreviousDay(previousEntry?: LogEntryTankS
 export function carryOverFromPreviousDay(previousEntry?: LogEntryTankSource | null): CarryOverFromPreviousDay {
   const { freshwater, fuel } = carryOverTankLevelsFromPreviousDay(previousEntry)
   const departure = previousEntry?.destination?.trim() || ''
+  const greywaterLevel = getClosingGreywaterLevel(previousEntry?.greywater)
 
-  return { freshwater, fuel, departure }
+  return { freshwater, fuel, greywaterLevel, departure }
 }
 
 export function hasCarryOverFromPreviousDay(carryOver: CarryOverFromPreviousDay): boolean {
-  return carryOver.freshwater.morning > 0 || carryOver.fuel.morning > 0 || carryOver.departure.length > 0
+  return (
+    carryOver.freshwater.morning > 0 ||
+    carryOver.fuel.morning > 0 ||
+    carryOver.greywaterLevel > 0 ||
+    carryOver.departure.length > 0
+  )
 }

client/src/utils/seo.ts

@@ -1,13 +1,22 @@
 import type { i18n as I18nInstance } from 'i18next'
+import { normalizeAppLanguage, type AppLanguage } from './i18nLanguages.js'
 
 const SITE_ORIGIN = 'https://kapteins-daagbok.eu'
 
-export type SeoLang = 'de' | 'en'
+export type SeoLang = AppLanguage
+
+const OG_LOCALES: Record<SeoLang, string> = {
+  de: 'de_DE',
+  en: 'en_GB',
+  da: 'da_DK',
+  sv: 'sv_SE',
+  nb: 'nb_NO'
+}
 
 let i18nRef: I18nInstance | null = null
 
 export function normalizeSeoLang(lng: string): SeoLang {
-  return lng.startsWith('de') ? 'de' : 'en'
+  return normalizeAppLanguage(lng)
 }
 
 function setMeta(attr: 'name' | 'property', key: string, content: string) {
@@ -47,8 +56,7 @@ export function updatePageSeo(lng?: string) {
   setMeta('name', 'keywords', keywords)
   setMeta('property', 'og:title', title)
   setMeta('property', 'og:description', description)
-  setMeta('property', 'og:locale', lang === 'de' ? 'de_DE' : 'en_US')
-  setMeta('property', 'og:locale:alternate', lang === 'de' ? 'en_US' : 'de_DE')
+  setMeta('property', 'og:locale', OG_LOCALES[lang])
   setMeta('name', 'twitter:title', title)
   setMeta('name', 'twitter:description', description)
   setMeta('property', 'og:image:alt', imageAlt)

client/src/utils/tankCapacity.test.ts

@@ -0,0 +1,62 @@
+import { describe, expect, it } from 'vitest'
+import {
+  clampTankLiters,
+  computeEveningTankMaxLiters,
+  computeRefilledTankMaxLiters,
+  extractTankCapacitiesFromYacht,
+  formatTankLitersForInput,
+  parseOptionalTankLiters,
+  tankCapacityInputFromStored
+} from './tankCapacity.js'
+
+describe('tankCapacity', () => {
+  it('parses optional liters with comma decimal', () => {
+    expect(parseOptionalTankLiters('200')).toBe(200)
+    expect(parseOptionalTankLiters('12,5')).toBe(12.5)
+    expect(parseOptionalTankLiters('')).toBeUndefined()
+  })
+
+  it('rejects negative or invalid liters', () => {
+    expect(() => parseOptionalTankLiters('-1')).toThrow('invalid_tank_liters')
+    expect(() => parseOptionalTankLiters('abc')).toThrow('invalid_tank_liters')
+  })
+
+  it('extracts capacities from yacht payload', () => {
+    expect(
+      extractTankCapacitiesFromYacht({
+        freshwaterCapacityL: 300,
+        fuelCapacityL: 120,
+        greywaterCapacityL: 80
+      })
+    ).toEqual({
+      freshwaterCapacityL: 300,
+      fuelCapacityL: 120,
+      greywaterCapacityL: 80
+    })
+    expect(extractTankCapacitiesFromYacht({ name: 'Test' })).toEqual({})
+  })
+
+  it('formats stored capacity for input', () => {
+    expect(tankCapacityInputFromStored(150)).toBe('150')
+    expect(formatTankLitersForInput(12.5)).toBe('12.5')
+  })
+
+  it('clamps liters to max when set', () => {
+    expect(clampTankLiters(250, 200)).toBe(200)
+    expect(clampTankLiters(-5, 200)).toBe(0)
+    expect(clampTankLiters(50)).toBe(50)
+  })
+
+  it('computes refilled max as capacity minus morning', () => {
+    expect(computeRefilledTankMaxLiters('10', 60)).toBe(50)
+    expect(computeRefilledTankMaxLiters('60', 60)).toBeUndefined()
+    expect(computeRefilledTankMaxLiters('10', undefined)).toBeUndefined()
+  })
+
+  it('computes evening max as morning plus refilled capped by capacity', () => {
+    expect(computeEveningTankMaxLiters('10', '20', 60)).toBe(30)
+    expect(computeEveningTankMaxLiters('40', '40', 60)).toBe(60)
+    expect(computeEveningTankMaxLiters('10', '20')).toBe(30)
+    expect(computeEveningTankMaxLiters('0', '0', 60)).toBeUndefined()
+  })
+})

client/src/utils/tankCapacity.ts

@@ -0,0 +1,101 @@
+import { formatTankLiters } from './logEntryTankLevels.js'
+
+export interface VesselTankCapacities {
+  freshwaterCapacityL?: number
+  fuelCapacityL?: number
+  greywaterCapacityL?: number
+}
+
+export function parseOptionalTankLiters(input: string): number | undefined {
+  const trimmed = input.trim().replace(',', '.')
+  if (!trimmed) return undefined
+  const parsed = Number(trimmed)
+  if (!Number.isFinite(parsed) || parsed < 0) {
+    throw new Error('invalid_tank_liters')
+  }
+  return parsed
+}
+
+export function formatTankLitersForInput(liters: number): string {
+  return formatTankLiters(liters)
+}
+
+function capacityFromStored(value: unknown): number | undefined {
+  if (value == null || value === '') return undefined
+  if (typeof value === 'number' && Number.isFinite(value) && value >= 0) return value
+  if (typeof value === 'string') {
+    const trimmed = value.trim().replace(',', '.')
+    if (!trimmed) return undefined
+    const parsed = Number(trimmed)
+    if (Number.isFinite(parsed) && parsed >= 0) return parsed
+  }
+  return undefined
+}
+
+export function tankCapacityInputFromStored(value: unknown): string {
+  const n = capacityFromStored(value)
+  return n != null ? formatTankLitersForInput(n) : ''
+}
+
+export function extractTankCapacitiesFromYacht(decrypted: unknown): VesselTankCapacities {
+  if (!decrypted || typeof decrypted !== 'object') return {}
+  const y = decrypted as Record<string, unknown>
+  const capacities: VesselTankCapacities = {}
+  const fw = capacityFromStored(y.freshwaterCapacityL)
+  const fuel = capacityFromStored(y.fuelCapacityL)
+  const gw = capacityFromStored(y.greywaterCapacityL)
+  if (fw != null) capacities.freshwaterCapacityL = fw
+  if (fuel != null) capacities.fuelCapacityL = fuel
+  if (gw != null) capacities.greywaterCapacityL = gw
+  return capacities
+}
+
+/** Parse a liter amount from form state (string). */
+export function parseTankLitersFromInput(input: string): number {
+  const trimmed = input.trim().replace(',', '.')
+  if (!trimmed) return 0
+  const parsed = Number(trimmed)
+  return Number.isFinite(parsed) && parsed >= 0 ? parsed : 0
+}
+
+/**
+ * Max for refilled amount: remaining capacity after morning level.
+ * Returns undefined when no positive max (no slider).
+ */
+export function computeRefilledTankMaxLiters(
+  morningInput: string,
+  tankCapacityL?: number
+): number | undefined {
+  if (tankCapacityL == null || tankCapacityL <= 0) return undefined
+  const remaining = tankCapacityL - parseTankLitersFromInput(morningInput)
+  if (remaining <= 0) return undefined
+  return remaining
+}
+
+/**
+ * Max for evening fill level: morning + refilled, capped by tank capacity when known.
+ * Returns undefined when no positive max (no slider).
+ */
+export function computeEveningTankMaxLiters(
+  morningInput: string,
+  refilledInput: string,
+  tankCapacityL?: number
+): number | undefined {
+  const sum = parseTankLitersFromInput(morningInput) + parseTankLitersFromInput(refilledInput)
+  if (sum <= 0) return undefined
+
+  if (tankCapacityL != null && tankCapacityL > 0) {
+    return Math.min(tankCapacityL, sum)
+  }
+
+  return sum
+}
+
+/** Clamp numeric liter value to [0, max] when max is known. */
+export function clampTankLiters(value: number, maxLiters?: number): number {
+  const clamped = Math.max(0, value)
+  if (maxLiters != null && maxLiters > 0) {
+    return Math.min(clamped, maxLiters)
+  }
+  return clamped
+}

client/vite.config.ts

@@ -2,9 +2,10 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 import { VitePWA } from 'vite-plugin-pwa'
-import { readFileSync } from 'node:fs'
+import { readFileSync, writeFileSync } from 'node:fs'
 import { resolve, dirname } from 'node:path'
 import { fileURLToPath } from 'node:url'
+import type { Plugin } from 'vite'
 
 const __dirname = dirname(fileURLToPath(import.meta.url))
 
@@ -19,6 +20,19 @@ function readAppVersion(): string {
   }
 }
 
+function versionJsonPlugin(version: string): Plugin {
+  return {
+    name: 'version-json',
+    writeBundle(options) {
+      const outDir = options.dir ?? resolve(__dirname, 'dist')
+      writeFileSync(
+        resolve(outDir, 'version.json'),
+        `${JSON.stringify({ version }, null, 2)}\n`
+      )
+    }
+  }
+}
+
 // https://vite.dev/config/
 export default defineConfig({
   test: {
@@ -42,6 +56,7 @@ export default defineConfig({
   },
   plugins: [
     react(),
+    versionJsonPlugin(readAppVersion()),
     VitePWA({
       strategies: 'injectManifest',
       srcDir: 'src',

docs/marketing/beta-flyer.da.html

@@ -0,0 +1,381 @@
+<!DOCTYPE html>
+<html lang="da">
+<head>
+  <meta charset="UTF-8" />
+  <title>Kapteins Daagbok - Beta-flyer</title>
+  <style>
+    @page {
+      size: A4 portrait;
+      margin: 0;
+    }
+
+    * {
+      box-sizing: border-box;
+      margin: 0;
+      padding: 0;
+    }
+
+    html, body {
+      width: 210mm;
+      height: 297mm;
+      font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
+      color: #e2e8f0;
+      background: #0f172a;
+      -webkit-print-color-adjust: exact;
+      print-color-adjust: exact;
+    }
+
+    .page {
+      width: 210mm;
+      height: 297mm;
+      max-height: 297mm;
+      padding: 12mm 15mm 10mm;
+      display: flex;
+      flex-direction: column;
+      gap: 5mm;
+      background:
+        radial-gradient(ellipse 120% 80% at 100% 0%, rgba(56, 189, 248, 0.12) 0%, transparent 55%),
+        radial-gradient(ellipse 90% 60% at 0% 100%, rgba(134, 59, 255, 0.14) 0%, transparent 50%),
+        linear-gradient(165deg, #0f172a 0%, #1e293b 45%, #0f172a 100%);
+      position: relative;
+      overflow: hidden;
+    }
+
+    .page::before {
+      content: "";
+      position: absolute;
+      inset: 8mm;
+      border: 1px solid rgba(148, 163, 184, 0.18);
+      border-radius: 4mm;
+      pointer-events: none;
+    }
+
+    header {
+      display: flex;
+      align-items: center;
+      gap: 5mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .logo {
+      width: 16mm;
+      height: 16mm;
+      flex-shrink: 0;
+      object-fit: contain;
+    }
+
+    .title-block h1 {
+      font-size: 23pt;
+      font-weight: 700;
+      letter-spacing: -0.02em;
+      color: #f8fafc;
+      line-height: 1.1;
+    }
+
+    .title-block p {
+      font-size: 12pt;
+      color: #94a3b8;
+      margin-top: 1.5mm;
+    }
+
+    .badge {
+      margin-left: auto;
+      align-self: flex-start;
+      background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
+      color: #1e293b;
+      font-size: 11pt;
+      font-weight: 800;
+      letter-spacing: 0.12em;
+      padding: 2.5mm 4.5mm;
+      border-radius: 2mm;
+      text-transform: uppercase;
+    }
+
+    .intro {
+      font-size: 12pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+      flex-shrink: 0;
+      max-width: 95%;
+      position: relative;
+      z-index: 1;
+    }
+
+    .intro strong {
+      color: #f8fafc;
+    }
+
+    .screenshots {
+      display: grid;
+      grid-template-columns: repeat(3, 1fr);
+      gap: 3mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .screenshot-card {
+      border-radius: 2.5mm;
+      overflow: hidden;
+      border: 1px solid rgba(148, 163, 184, 0.22);
+      background: rgba(15, 23, 42, 0.55);
+      display: flex;
+      flex-direction: column;
+      min-width: 0;
+    }
+
+    .screenshot-card img {
+      width: 100%;
+      height: 50mm;
+      object-fit: contain;
+      object-position: top center;
+      display: block;
+      background: #0b1220;
+    }
+
+    .screenshot-caption {
+      font-size: 9pt;
+      color: #94a3b8;
+      text-align: center;
+      padding: 1.5mm 2mm;
+      line-height: 1.3;
+      flex-shrink: 0;
+    }
+
+    .features {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 1.8mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .feature {
+      display: flex;
+      gap: 2.5mm;
+      align-items: flex-start;
+      font-size: 10.5pt;
+      line-height: 1.28;
+      color: #e2e8f0;
+    }
+
+    .feature-icon {
+      color: #38bdf8;
+      font-weight: 700;
+      flex-shrink: 0;
+      width: 4mm;
+    }
+
+    .lang-list {
+      display: inline-flex;
+      flex-wrap: wrap;
+      align-items: center;
+      gap: 1.5mm;
+    }
+
+    .lang-item {
+      display: inline-flex;
+      align-items: center;
+      gap: 1.2mm;
+      white-space: nowrap;
+    }
+
+    .feature-flag {
+      display: inline-block;
+      width: 5mm;
+      height: 3.5mm;
+      border-radius: 0.3mm;
+      flex-shrink: 0;
+      box-shadow: 0 0 0 0.15mm rgba(0, 0, 0, 0.25);
+    }
+
+    .lang-sep {
+      color: #94a3b8;
+    }
+
+    .beta-box {
+      background: rgba(30, 41, 59, 0.85);
+      border: 1px solid rgba(251, 191, 36, 0.35);
+      border-left: 3px solid #fbbf24;
+      border-radius: 3mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .beta-box h2 {
+      font-size: 12.5pt;
+      color: #fbbf24;
+      margin-bottom: 2mm;
+      font-weight: 700;
+    }
+
+    .beta-box p {
+      font-size: 10.5pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+    }
+
+    .cta {
+      display: flex;
+      align-items: center;
+      gap: 7mm;
+      background: rgba(15, 23, 42, 0.6);
+      border: 1px solid rgba(148, 163, 184, 0.2);
+      border-radius: 4mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .qr {
+      width: 32mm;
+      height: 32mm;
+      background: #fff;
+      padding: 2mm;
+      border-radius: 2mm;
+      flex-shrink: 0;
+    }
+
+    .qr img {
+      width: 100%;
+      height: 100%;
+      display: block;
+    }
+
+    .cta-text h3 {
+      font-size: 14.5pt;
+      color: #38bdf8;
+      font-weight: 700;
+      margin-bottom: 2mm;
+    }
+
+    .cta-text p {
+      font-size: 11pt;
+      color: #94a3b8;
+      line-height: 1.5;
+    }
+
+    .tags {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 2mm;
+      margin-top: 3mm;
+    }
+
+    .tag {
+      font-size: 9.5pt;
+      font-weight: 600;
+      letter-spacing: 0.04em;
+      text-transform: uppercase;
+      color: #64748b;
+      border: 1px solid rgba(100, 116, 139, 0.4);
+      border-radius: 1.5mm;
+      padding: 1mm 2.5mm;
+    }
+
+    footer {
+      border-top: 1px solid rgba(148, 163, 184, 0.15);
+      padding-top: 3mm;
+      margin-top: auto;
+      flex-shrink: 0;
+      font-size: 9.5pt;
+      line-height: 1.5;
+      color: #64748b;
+      position: relative;
+      z-index: 1;
+    }
+
+    footer strong {
+      color: #94a3b8;
+      font-weight: 600;
+    }
+  </style>
+</head>
+<body>
+  <article class="page">
+    <header>
+      <img class="logo" src="../../client/public/logo.png" alt="Kapteins Daagbok" />
+      <div class="title-block">
+        <h1>Kapteins Daagbok</h1>
+        <p>Digital yachtlogbog - gratis og reklamefri</p>
+      </div>
+      <span class="badge">Beta</span>
+    </header>
+
+    <p class="intro">
+      Opbevar din logbog om bord digitalt: rejsedage, GPS-spor, besætnings- og skibsdata
+      <strong>End-to-end-krypteret</strong>kan installeres som en app og
+      <strong>også offline</strong> kan bruges til søs.
+    </p>
+
+    <section class="features" aria-label="Funktioner">
+      <div class="feature"><span class="feature-icon">✦</span><span>Rejsedage i nautisk logbogsformat (havn, vejr, sejl, besætning, brændstofniveauer)</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Offline-kompatibel PWA - kører på enhver smartphone og tablet</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Simpelt login uden adgangskode Passkey.</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Ende-til-ende-kryptering</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Upload af GPS-spor (GPX/KML) med kortvisning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Rute-statistik</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Vedhæftede billeder pr. rejsedag</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Fotoavatarbilleder til skipper og besætning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Inviter besætningen - arbejd sammen om logbogen</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>PDF- &amp; CSV-Export</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Krypteret sikkerhedskopiering og gendannelse</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Del logbog med venner</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Et vilkårligt antal skibe og logbøger</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>English</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 37 28" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="37" height="28" fill="#C8102E"/><rect x="12" width="4" height="28" fill="#fff"/><rect y="12" width="37" height="4" fill="#fff"/></svg>Dansk</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 16 10" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="16" height="10" fill="#006AA7"/><rect x="5" width="2" height="10" fill="#FECC00"/><rect y="4" width="16" height="2" fill="#FECC00"/></svg>Svenska</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 22 16" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="22" height="16" fill="#BA0C2F"/><rect x="6" width="4" height="16" fill="#fff"/><rect y="6" width="22" height="4" fill="#fff"/><rect x="7" width="2" height="16" fill="#00205B"/><rect y="7" width="22" height="2" fill="#00205B"/></svg>Norsk</span></span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>3 temaer, hver med en lys og en mørk variant</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Fremstillet i Kiel.Sailing.City..</span></div>
+    </section>
+
+    <section class="screenshots" aria-label="Skærmbilleder af appen">
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-login.png" alt="Registrering med Passkey og demo" />
+        <figcaption class="screenshot-caption">Registrering &amp; Passkey</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-logbook.png" alt="Logbogsdagbog med rejsedage" />
+        <figcaption class="screenshot-caption">Logbogsdagbog</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-vessel.png" alt="Skibsdata med foto af yacht" />
+        <figcaption class="screenshot-caption">Skibsdata</figcaption>
+      </figure>
+    </section>
+
+    <section class="beta-box">
+      <h2>Betafase - din feedback tæller</h2>
+      <p>
+        Kapteins Daagbok er en<strong>Privat hobbyprojekt uden fortjeneste for øje</strong>.
+        Som betatester er du med til at forbedre appen for skippere og besætninger i hverdagen - feedback er meget velkommen.
+        Feedback er yderst velkommen.
+      </p>
+    </section>
+
+    <section class="cta">
+      <div class="qr">
+        <img src="assets/qr-kapteins-daagbok.eu.png" alt="QR-kode: kapteins-daagbok.eu" />
+      </div>
+      <div class="cta-text">
+        <h3>kapteins-daagbok.eu</h3>
+        <p>Åbn i browseren, eller tilføj som en app til startskærmen. Registrer dig hos Passkey - der kræves ingen app store.</p>
+        <div class="tags">
+          <span class="tag">Helt gratis</span>
+          <span class="tag">Gratis reklame</span>
+          <span class="tag">E2E-krypteret</span>
+        </div>
+      </div>
+    </section>
+
+    <footer>
+      <strong>Påtryk</strong><br />
+      KnorrLabs · Markus F.J. Busche · Knorrstr. 16 · 24106 Kiel · elpatron+kd@mailbox.org
+    </footer>
+  </article>
+</body>
+</html>

docs/marketing/beta-flyer.html

@@ -328,7 +328,7 @@
       <div class="feature"><span class="feature-icon">✦</span><span>Verschlüsseltes Backup &amp; Wiederherstellung</span></div>
       <div class="feature"><span class="feature-icon">✦</span><span>Logbuch mit Freunden teilen</span></div>
       <div class="feature"><span class="feature-icon">✦</span><span>Beliebig viele Schiffe und Logbücher</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">&amp;</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>Englisch</span></span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>Englisch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 37 28" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="37" height="28" fill="#C8102E"/><rect x="12" width="4" height="28" fill="#fff"/><rect y="12" width="37" height="4" fill="#fff"/></svg>Dansk</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 16 10" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="16" height="10" fill="#006AA7"/><rect x="5" width="2" height="10" fill="#FECC00"/><rect y="4" width="16" height="2" fill="#FECC00"/></svg>Svenska</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 22 16" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="22" height="16" fill="#BA0C2F"/><rect x="6" width="4" height="16" fill="#fff"/><rect y="6" width="22" height="4" fill="#fff"/><rect x="7" width="2" height="16" fill="#00205B"/><rect y="7" width="22" height="2" fill="#00205B"/></svg>Norsk</span></span></div>
       <div class="feature"><span class="feature-icon">✦</span><span>3 Themes, jeweils mit heller und dunkler Variante</span></div>
       <div class="feature"><span class="feature-icon">✦</span><span>Crafted in Kiel.Sailing.City.</span></div>
     </section>

docs/marketing/beta-flyer.nb.html

@@ -0,0 +1,381 @@
+<!DOCTYPE html>
+<html lang="nb">
+<head>
+  <meta charset="UTF-8" />
+  <title>Kapteins Daagbok - Beta-flygeblad</title>
+  <style>
+    @page {
+      size: A4 portrait;
+      margin: 0;
+    }
+
+    * {
+      box-sizing: border-box;
+      margin: 0;
+      padding: 0;
+    }
+
+    html, body {
+      width: 210mm;
+      height: 297mm;
+      font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
+      color: #e2e8f0;
+      background: #0f172a;
+      -webkit-print-color-adjust: exact;
+      print-color-adjust: exact;
+    }
+
+    .page {
+      width: 210mm;
+      height: 297mm;
+      max-height: 297mm;
+      padding: 12mm 15mm 10mm;
+      display: flex;
+      flex-direction: column;
+      gap: 5mm;
+      background:
+        radial-gradient(ellipse 120% 80% at 100% 0%, rgba(56, 189, 248, 0.12) 0%, transparent 55%),
+        radial-gradient(ellipse 90% 60% at 0% 100%, rgba(134, 59, 255, 0.14) 0%, transparent 50%),
+        linear-gradient(165deg, #0f172a 0%, #1e293b 45%, #0f172a 100%);
+      position: relative;
+      overflow: hidden;
+    }
+
+    .page::before {
+      content: "";
+      position: absolute;
+      inset: 8mm;
+      border: 1px solid rgba(148, 163, 184, 0.18);
+      border-radius: 4mm;
+      pointer-events: none;
+    }
+
+    header {
+      display: flex;
+      align-items: center;
+      gap: 5mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .logo {
+      width: 16mm;
+      height: 16mm;
+      flex-shrink: 0;
+      object-fit: contain;
+    }
+
+    .title-block h1 {
+      font-size: 23pt;
+      font-weight: 700;
+      letter-spacing: -0.02em;
+      color: #f8fafc;
+      line-height: 1.1;
+    }
+
+    .title-block p {
+      font-size: 12pt;
+      color: #94a3b8;
+      margin-top: 1.5mm;
+    }
+
+    .badge {
+      margin-left: auto;
+      align-self: flex-start;
+      background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
+      color: #1e293b;
+      font-size: 11pt;
+      font-weight: 800;
+      letter-spacing: 0.12em;
+      padding: 2.5mm 4.5mm;
+      border-radius: 2mm;
+      text-transform: uppercase;
+    }
+
+    .intro {
+      font-size: 12pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+      flex-shrink: 0;
+      max-width: 95%;
+      position: relative;
+      z-index: 1;
+    }
+
+    .intro strong {
+      color: #f8fafc;
+    }
+
+    .screenshots {
+      display: grid;
+      grid-template-columns: repeat(3, 1fr);
+      gap: 3mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .screenshot-card {
+      border-radius: 2.5mm;
+      overflow: hidden;
+      border: 1px solid rgba(148, 163, 184, 0.22);
+      background: rgba(15, 23, 42, 0.55);
+      display: flex;
+      flex-direction: column;
+      min-width: 0;
+    }
+
+    .screenshot-card img {
+      width: 100%;
+      height: 50mm;
+      object-fit: contain;
+      object-position: top center;
+      display: block;
+      background: #0b1220;
+    }
+
+    .screenshot-caption {
+      font-size: 9pt;
+      color: #94a3b8;
+      text-align: center;
+      padding: 1.5mm 2mm;
+      line-height: 1.3;
+      flex-shrink: 0;
+    }
+
+    .features {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 1.8mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .feature {
+      display: flex;
+      gap: 2.5mm;
+      align-items: flex-start;
+      font-size: 10.5pt;
+      line-height: 1.28;
+      color: #e2e8f0;
+    }
+
+    .feature-icon {
+      color: #38bdf8;
+      font-weight: 700;
+      flex-shrink: 0;
+      width: 4mm;
+    }
+
+    .lang-list {
+      display: inline-flex;
+      flex-wrap: wrap;
+      align-items: center;
+      gap: 1.5mm;
+    }
+
+    .lang-item {
+      display: inline-flex;
+      align-items: center;
+      gap: 1.2mm;
+      white-space: nowrap;
+    }
+
+    .feature-flag {
+      display: inline-block;
+      width: 5mm;
+      height: 3.5mm;
+      border-radius: 0.3mm;
+      flex-shrink: 0;
+      box-shadow: 0 0 0 0.15mm rgba(0, 0, 0, 0.25);
+    }
+
+    .lang-sep {
+      color: #94a3b8;
+    }
+
+    .beta-box {
+      background: rgba(30, 41, 59, 0.85);
+      border: 1px solid rgba(251, 191, 36, 0.35);
+      border-left: 3px solid #fbbf24;
+      border-radius: 3mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .beta-box h2 {
+      font-size: 12.5pt;
+      color: #fbbf24;
+      margin-bottom: 2mm;
+      font-weight: 700;
+    }
+
+    .beta-box p {
+      font-size: 10.5pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+    }
+
+    .cta {
+      display: flex;
+      align-items: center;
+      gap: 7mm;
+      background: rgba(15, 23, 42, 0.6);
+      border: 1px solid rgba(148, 163, 184, 0.2);
+      border-radius: 4mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .qr {
+      width: 32mm;
+      height: 32mm;
+      background: #fff;
+      padding: 2mm;
+      border-radius: 2mm;
+      flex-shrink: 0;
+    }
+
+    .qr img {
+      width: 100%;
+      height: 100%;
+      display: block;
+    }
+
+    .cta-text h3 {
+      font-size: 14.5pt;
+      color: #38bdf8;
+      font-weight: 700;
+      margin-bottom: 2mm;
+    }
+
+    .cta-text p {
+      font-size: 11pt;
+      color: #94a3b8;
+      line-height: 1.5;
+    }
+
+    .tags {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 2mm;
+      margin-top: 3mm;
+    }
+
+    .tag {
+      font-size: 9.5pt;
+      font-weight: 600;
+      letter-spacing: 0.04em;
+      text-transform: uppercase;
+      color: #64748b;
+      border: 1px solid rgba(100, 116, 139, 0.4);
+      border-radius: 1.5mm;
+      padding: 1mm 2.5mm;
+    }
+
+    footer {
+      border-top: 1px solid rgba(148, 163, 184, 0.15);
+      padding-top: 3mm;
+      margin-top: auto;
+      flex-shrink: 0;
+      font-size: 9.5pt;
+      line-height: 1.5;
+      color: #64748b;
+      position: relative;
+      z-index: 1;
+    }
+
+    footer strong {
+      color: #94a3b8;
+      font-weight: 600;
+    }
+  </style>
+</head>
+<body>
+  <article class="page">
+    <header>
+      <img class="logo" src="../../client/public/logo.png" alt="Kapteins Daagbok" />
+      <div class="title-block">
+        <h1>Kapteins Daagbok</h1>
+        <p>Digital loggbok for fritidsbåter - gratis og reklamefri</p>
+      </div>
+      <span class="badge">Beta</span>
+    </header>
+
+    <p class="intro">
+      Oppbevar loggboken om bord digitalt: reisedager, GPS-spor, mannskaps- og skipsdata
+      <strong>Ende-til-ende-kryptert</strong>kan installeres som en app og
+      <strong>også offline</strong> kan brukes til sjøs.
+    </p>
+
+    <section class="features" aria-label="Funksjoner">
+      <div class="feature"><span class="feature-icon">✦</span><span>Reisedager i nautisk loggbokformat (havn, vær, seil, mannskap, drivstoffnivå)</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Offline-kompatibel PWA - kjører på alle smarttelefoner og nettbrett</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Enkel passordfri Passkey-pålogging</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Ende-til-ende-kryptering</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Opplasting av GPS-spor (GPX/KML) med kartvisning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Rutestatistikk</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Fotobilag per reisedag</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Avatarbilder for skipper og mannskap</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Inviter mannskapet - samarbeid om loggboken</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>PDF- &amp; CSV-Export</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Kryptert sikkerhetskopiering og gjenoppretting</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Del loggboken med venner</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Et hvilket som helst antall skip og loggbøker</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>English</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 37 28" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="37" height="28" fill="#C8102E"/><rect x="12" width="4" height="28" fill="#fff"/><rect y="12" width="37" height="4" fill="#fff"/></svg>Dansk</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 16 10" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="16" height="10" fill="#006AA7"/><rect x="5" width="2" height="10" fill="#FECC00"/><rect y="4" width="16" height="2" fill="#FECC00"/></svg>Svenska</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 22 16" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="22" height="16" fill="#BA0C2F"/><rect x="6" width="4" height="16" fill="#fff"/><rect y="6" width="22" height="4" fill="#fff"/><rect x="7" width="2" height="16" fill="#00205B"/><rect y="7" width="22" height="2" fill="#00205B"/></svg>Norsk</span></span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>3 temaer, hvert med en lys og en mørk variant</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Laget i Kiel.Sailing.City..</span></div>
+    </section>
+
+    <section class="screenshots" aria-label="Skjermbilder av appen">
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-login.png" alt="Registrering med Passkey og demo" />
+        <figcaption class="screenshot-caption">Registrering &amp; Passkey</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-logbook.png" alt="Loggbok med reisedager" />
+        <figcaption class="screenshot-caption">Loggbokdagbok</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-vessel.png" alt="Skipsdata med bilde av båten" />
+        <figcaption class="screenshot-caption">Skipsdata</figcaption>
+      </figure>
+    </section>
+
+    <section class="beta-box">
+      <h2>Betafasen - dine tilbakemeldinger teller</h2>
+      <p>
+        Kapteins Daagbok er en<strong>Privat hobbyprosjekt uten profitthensikt</strong>.
+        Som betatester bidrar du til å forbedre appen for skippere og mannskap i hverdagen - tilbakemeldinger er hjertelig velkomne.
+        Tilbakemeldinger er hjertelig velkomne.
+      </p>
+    </section>
+
+    <section class="cta">
+      <div class="qr">
+        <img src="assets/qr-kapteins-daagbok.eu.png" alt="QR-kode: kapteins-daagbok.eu" />
+      </div>
+      <div class="cta-text">
+        <h3>kapteins-daagbok.eu</h3>
+        <p>Åpne i nettleseren eller legg til som en app på startskjermen. Registrer deg med Passkey - ingen appbutikk er nødvendig.</p>
+        <div class="tags">
+          <span class="tag">Kostnadsfritt</span>
+          <span class="tag">Gratis annonsering</span>
+          <span class="tag">E2E-kryptert</span>
+        </div>
+      </div>
+    </section>
+
+    <footer>
+      <strong>Avtrykk</strong><br />
+      KnorrLabs · Markus F.J. Busche · Knorrstr. 16 · 24106 Kiel · elpatron+kd@mailbox.org
+    </footer>
+  </article>
+</body>
+</html>

docs/marketing/beta-flyer.sv.html

@@ -0,0 +1,381 @@
+<!DOCTYPE html>
+<html lang="sv">
+<head>
+  <meta charset="UTF-8" />
+  <title>Kapteins Daagbok - Beta-flygblad</title>
+  <style>
+    @page {
+      size: A4 portrait;
+      margin: 0;
+    }
+
+    * {
+      box-sizing: border-box;
+      margin: 0;
+      padding: 0;
+    }
+
+    html, body {
+      width: 210mm;
+      height: 297mm;
+      font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
+      color: #e2e8f0;
+      background: #0f172a;
+      -webkit-print-color-adjust: exact;
+      print-color-adjust: exact;
+    }
+
+    .page {
+      width: 210mm;
+      height: 297mm;
+      max-height: 297mm;
+      padding: 12mm 15mm 10mm;
+      display: flex;
+      flex-direction: column;
+      gap: 5mm;
+      background:
+        radial-gradient(ellipse 120% 80% at 100% 0%, rgba(56, 189, 248, 0.12) 0%, transparent 55%),
+        radial-gradient(ellipse 90% 60% at 0% 100%, rgba(134, 59, 255, 0.14) 0%, transparent 50%),
+        linear-gradient(165deg, #0f172a 0%, #1e293b 45%, #0f172a 100%);
+      position: relative;
+      overflow: hidden;
+    }
+
+    .page::before {
+      content: "";
+      position: absolute;
+      inset: 8mm;
+      border: 1px solid rgba(148, 163, 184, 0.18);
+      border-radius: 4mm;
+      pointer-events: none;
+    }
+
+    header {
+      display: flex;
+      align-items: center;
+      gap: 5mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .logo {
+      width: 16mm;
+      height: 16mm;
+      flex-shrink: 0;
+      object-fit: contain;
+    }
+
+    .title-block h1 {
+      font-size: 23pt;
+      font-weight: 700;
+      letter-spacing: -0.02em;
+      color: #f8fafc;
+      line-height: 1.1;
+    }
+
+    .title-block p {
+      font-size: 12pt;
+      color: #94a3b8;
+      margin-top: 1.5mm;
+    }
+
+    .badge {
+      margin-left: auto;
+      align-self: flex-start;
+      background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
+      color: #1e293b;
+      font-size: 11pt;
+      font-weight: 800;
+      letter-spacing: 0.12em;
+      padding: 2.5mm 4.5mm;
+      border-radius: 2mm;
+      text-transform: uppercase;
+    }
+
+    .intro {
+      font-size: 12pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+      flex-shrink: 0;
+      max-width: 95%;
+      position: relative;
+      z-index: 1;
+    }
+
+    .intro strong {
+      color: #f8fafc;
+    }
+
+    .screenshots {
+      display: grid;
+      grid-template-columns: repeat(3, 1fr);
+      gap: 3mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .screenshot-card {
+      border-radius: 2.5mm;
+      overflow: hidden;
+      border: 1px solid rgba(148, 163, 184, 0.22);
+      background: rgba(15, 23, 42, 0.55);
+      display: flex;
+      flex-direction: column;
+      min-width: 0;
+    }
+
+    .screenshot-card img {
+      width: 100%;
+      height: 50mm;
+      object-fit: contain;
+      object-position: top center;
+      display: block;
+      background: #0b1220;
+    }
+
+    .screenshot-caption {
+      font-size: 9pt;
+      color: #94a3b8;
+      text-align: center;
+      padding: 1.5mm 2mm;
+      line-height: 1.3;
+      flex-shrink: 0;
+    }
+
+    .features {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 1.8mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .feature {
+      display: flex;
+      gap: 2.5mm;
+      align-items: flex-start;
+      font-size: 10.5pt;
+      line-height: 1.28;
+      color: #e2e8f0;
+    }
+
+    .feature-icon {
+      color: #38bdf8;
+      font-weight: 700;
+      flex-shrink: 0;
+      width: 4mm;
+    }
+
+    .lang-list {
+      display: inline-flex;
+      flex-wrap: wrap;
+      align-items: center;
+      gap: 1.5mm;
+    }
+
+    .lang-item {
+      display: inline-flex;
+      align-items: center;
+      gap: 1.2mm;
+      white-space: nowrap;
+    }
+
+    .feature-flag {
+      display: inline-block;
+      width: 5mm;
+      height: 3.5mm;
+      border-radius: 0.3mm;
+      flex-shrink: 0;
+      box-shadow: 0 0 0 0.15mm rgba(0, 0, 0, 0.25);
+    }
+
+    .lang-sep {
+      color: #94a3b8;
+    }
+
+    .beta-box {
+      background: rgba(30, 41, 59, 0.85);
+      border: 1px solid rgba(251, 191, 36, 0.35);
+      border-left: 3px solid #fbbf24;
+      border-radius: 3mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .beta-box h2 {
+      font-size: 12.5pt;
+      color: #fbbf24;
+      margin-bottom: 2mm;
+      font-weight: 700;
+    }
+
+    .beta-box p {
+      font-size: 10.5pt;
+      line-height: 1.5;
+      color: #cbd5e1;
+    }
+
+    .cta {
+      display: flex;
+      align-items: center;
+      gap: 7mm;
+      background: rgba(15, 23, 42, 0.6);
+      border: 1px solid rgba(148, 163, 184, 0.2);
+      border-radius: 4mm;
+      padding: 5mm 6mm;
+      flex-shrink: 0;
+      position: relative;
+      z-index: 1;
+    }
+
+    .qr {
+      width: 32mm;
+      height: 32mm;
+      background: #fff;
+      padding: 2mm;
+      border-radius: 2mm;
+      flex-shrink: 0;
+    }
+
+    .qr img {
+      width: 100%;
+      height: 100%;
+      display: block;
+    }
+
+    .cta-text h3 {
+      font-size: 14.5pt;
+      color: #38bdf8;
+      font-weight: 700;
+      margin-bottom: 2mm;
+    }
+
+    .cta-text p {
+      font-size: 11pt;
+      color: #94a3b8;
+      line-height: 1.5;
+    }
+
+    .tags {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 2mm;
+      margin-top: 3mm;
+    }
+
+    .tag {
+      font-size: 9.5pt;
+      font-weight: 600;
+      letter-spacing: 0.04em;
+      text-transform: uppercase;
+      color: #64748b;
+      border: 1px solid rgba(100, 116, 139, 0.4);
+      border-radius: 1.5mm;
+      padding: 1mm 2.5mm;
+    }
+
+    footer {
+      border-top: 1px solid rgba(148, 163, 184, 0.15);
+      padding-top: 3mm;
+      margin-top: auto;
+      flex-shrink: 0;
+      font-size: 9.5pt;
+      line-height: 1.5;
+      color: #64748b;
+      position: relative;
+      z-index: 1;
+    }
+
+    footer strong {
+      color: #94a3b8;
+      font-weight: 600;
+    }
+  </style>
+</head>
+<body>
+  <article class="page">
+    <header>
+      <img class="logo" src="../../client/public/logo.png" alt="Kapteins Daagbok" />
+      <div class="title-block">
+        <h1>Kapteins Daagbok</h1>
+        <p>Digital loggbok för båtar - gratis &amp; reklamfri</p>
+      </div>
+      <span class="badge">Beta</span>
+    </header>
+
+    <p class="intro">
+      Förvara din loggbok ombord digitalt: resdagar, GPS-spår, besättnings- och fartygsdata
+      <strong>End-to-end-kryptering</strong>kan installeras som en app och
+      <strong>också offline</strong> användbar till sjöss.
+    </p>
+
+    <section class="features" aria-label="Funktioner">
+      <div class="feature"><span class="feature-icon">✦</span><span>Resdagar i nautiskt loggboksformat (hamn, väder, segel, besättning, bränslenivåer)</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Offline-kompatibel PWA - körs på alla smartphones och surfplattor</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Enkel lösenordsfri Passkey-inloggning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>End-to-end-kryptering</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Uppladdning av GPS-spår (GPX/KML) med kartvisning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Statistik över rutter</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Fotobilagor per resdag</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Fotoavatarbilder för skeppare och besättning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Bjud in besättningen - arbeta tillsammans med loggboken</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>PDF- &amp; CSV-Export</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Krypterad säkerhetskopiering och återställning</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Dela loggbok med vänner</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Valfritt antal fartyg och loggböcker</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>English</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 37 28" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="37" height="28" fill="#C8102E"/><rect x="12" width="4" height="28" fill="#fff"/><rect y="12" width="37" height="4" fill="#fff"/></svg>Dansk</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 16 10" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="16" height="10" fill="#006AA7"/><rect x="5" width="2" height="10" fill="#FECC00"/><rect y="4" width="16" height="2" fill="#FECC00"/></svg>Svenska</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 22 16" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="22" height="16" fill="#BA0C2F"/><rect x="6" width="4" height="16" fill="#fff"/><rect y="6" width="22" height="4" fill="#fff"/><rect x="7" width="2" height="16" fill="#00205B"/><rect y="7" width="22" height="2" fill="#00205B"/></svg>Norsk</span></span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>3 teman, vart och ett med en ljus och en mörk variant</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Tillverkad i Kiel.Sailing.City..</span></div>
+    </section>
+
+    <section class="screenshots" aria-label="Appens skärmdumpar">
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-login.png" alt="Registrering med Passkey och demo" />
+        <figcaption class="screenshot-caption">Registrering &amp; Passkey</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-logbook.png" alt="Loggboksdagbok med resedagar" />
+        <figcaption class="screenshot-caption">Loggboksjournal</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-vessel.png" alt="Fartygsdata med foto av yacht" />
+        <figcaption class="screenshot-caption">Fartygsdata</figcaption>
+      </figure>
+    </section>
+
+    <section class="beta-box">
+      <h2>Betafas - din feedback är viktig</h2>
+      <p>
+        Kapteins Daagbok är en<strong>Privat hobbyprojekt utan vinstsyfte</strong>.
+        Som betatestare hjälper du till att förbättra appen för skeppare och besättning i vardagen - feedback är uttryckligen välkommen.
+        Feedback är uttryckligen välkommen.
+      </p>
+    </section>
+
+    <section class="cta">
+      <div class="qr">
+        <img src="assets/qr-kapteins-daagbok.eu.png" alt="QR-kod: kapteins-daagbok.eu" />
+      </div>
+      <div class="cta-text">
+        <h3>kapteins-daagbok.eu</h3>
+        <p>Öppna i webbläsaren eller lägg till som en app på hemskärmen. Registrera dig med Passkey - ingen appbutik krävs.</p>
+        <div class="tags">
+          <span class="tag">Kostnadsfritt</span>
+          <span class="tag">Reklamfri</span>
+          <span class="tag">E2E-krypterad</span>
+        </div>
+      </div>
+    </section>
+
+    <footer>
+      <strong>Avtryck</strong><br />
+      KnorrLabs · Markus F.J. Busche · Knorrstr. 16 · 24106 Kiel · elpatron+kd@mailbox.org
+    </footer>
+  </article>
+</body>
+</html>

docs/plausible-events.md

@@ -49,6 +49,7 @@ Kapteins Daagbok nutzt [Plausible Analytics](https://plausible.io/) mit dem Scri
 | Local PIN Removed | Lokaler PIN entfernt (`UserProfilePage.tsx`) | — |
 | Device Forgotten | Account aus Schnell-Login-Liste dieses Geräts entfernt (`UserProfilePage.tsx`) | — |
 | Recovery Rotated | Neuer 12-Wörter-Wiederherstellungsschlüssel erstellt (`UserProfilePage.tsx`) | — |
+| Language Changed | Sprache über UI-Wechsler gewählt (`i18nLanguages.ts` via Sprach-Button in App, Dashboard, Auth, Demo, Einladung, Share-Viewer) | `from`, `to`: ISO 639-1 (`de`, `en`, `da`, `sv`, `nb`) |
 
 ## Bewusst nicht getrackt
 
@@ -56,6 +57,7 @@ Kapteins Daagbok nutzt [Plausible Analytics](https://plausible.io/) mit dem Scri
 - **Manuelle Signaturen:** Nur Passkey-Signaturen lösen `Entry Signed` aus.
 - **PII:** Keine Inhalte aus verschlüsselten Logbüchern in Properties.
 - **Profil-KPIs:** Statistik-Karten und User-ID-Kopieren werden nicht getrackt (reine Anzeige bzw. zu granular).
+- **Sprache bei Erstbesuch:** Automatische Browser-/URL-Erkennung (`i18next-browser-languagedetector`, `?lng=`) löst kein `Language Changed` aus — nur explizite Klicks auf den Sprach-Button.
 - **Kontolöschung:** `Account Deleted` bleibt in `auth.ts` — unabhängig davon, ob die Gefahrenzone auf der Profilseite oder früher in den Einstellungen genutzt wurde.
 
 ## Typische Funnels (Plausible Goals)
@@ -69,6 +71,7 @@ Empfohlene Goal-Ketten für Auswertung:
 5. **Export:** Travel Day Saved → PDF Exported / CSV Exported
 6. **Datensicherung:** Backup Exported → Backup Restored
 7. **Kontosicherheit:** Profile Opened → Passkey Added / Local PIN Set / Recovery Rotated; Last Passkey Remove Hinted → Account Deleted (selten, aber aussagekräftig)
+8. **Internationalisierung:** Language Changed (Verteilung `to`, Pfade mit Übersetzungs-Feedback)
 
 ## Entwicklung
 
@@ -77,6 +80,7 @@ import { PlausibleEvents, trackPlausibleEvent } from './services/analytics.js'
 
 trackPlausibleEvent(PlausibleEvents.TRAVEL_DAY_SAVED)
 trackPlausibleEvent(PlausibleEvents.ENTRY_SIGNED, { role: 'skipper' })
+trackPlausibleEvent(PlausibleEvents.LANGUAGE_CHANGED, { from: 'de', to: 'da' })
 ```
 
 Lokal ohne Plausible-Script ist `trackPlausibleEvent` ein No-Op. In Production im Browser-Netzwerk-Tab auf Requests an die Plausible-Instanz prüfen.

package.json

@@ -0,0 +1,12 @@
+{
+  "name": "kapteins-daagbok",
+  "private": true,
+  "description": "Root scripts — run from repo root. Client scripts also work via: cd client && npm run …",
+  "scripts": {
+    "translate:locales": "node scripts/translate-locales.mjs",
+    "translate:flyer": "node scripts/translate-flyer.mjs",
+    "validate:i18n": "node scripts/validate-i18n-keys.mjs",
+    "generate:flyer": "node scripts/generate-beta-flyer.mjs",
+    "generate:flyer:all": "node scripts/generate-beta-flyer.mjs --all"
+  }
+}

scripts/generate-beta-flyer.mjs

@@ -1,7 +1,12 @@
 #!/usr/bin/env node
 /**
- * Generates the beta flyer PDF from docs/marketing/beta-flyer.html
- * Usage: npm run generate:flyer --prefix client
+ * Generates beta flyer PDF/PNG from docs/marketing/beta-flyer*.html
+ *
+ * Usage:
+ *   node scripts/generate-beta-flyer.mjs              # German PDF
+ *   node scripts/generate-beta-flyer.mjs --png          # German PNG
+ *   node scripts/generate-beta-flyer.mjs --all          # all locales, PDF + PNG
+ *   node scripts/generate-beta-flyer.mjs --lang da,sv # selected locales
  */
 
 import { execSync } from 'node:child_process'
@@ -15,13 +20,38 @@ const repoRoot = resolve(__dirname, '..')
 const clientDir = resolve(repoRoot, 'client')
 const marketingDir = resolve(repoRoot, 'docs/marketing')
 const assetsDir = resolve(marketingDir, 'assets')
-const htmlPath = resolve(marketingDir, 'beta-flyer.html')
 const qrPath = resolve(assetsDir, 'qr-kapteins-daagbok.eu.png')
-const pdfPath = resolve(marketingDir, 'kapteins-daagbok-beta-flyer.pdf')
 const appUrl = 'https://kapteins-daagbok.eu'
 
+const LOCALES = {
+  de: { html: 'beta-flyer.html', suffix: '' },
+  da: { html: 'beta-flyer.da.html', suffix: '.da' },
+  sv: { html: 'beta-flyer.sv.html', suffix: '.sv' },
+  nb: { html: 'beta-flyer.nb.html', suffix: '.nb' }
+}
+
 const require = createRequire(resolve(clientDir, 'package.json'))
 
+function parseArgs(argv) {
+  const all = argv.includes('--all')
+  let langs = all ? Object.keys(LOCALES) : ['de']
+  let pdf = !argv.includes('--png-only')
+  let png = argv.includes('--png') || argv.includes('--all') || argv.includes('--png-only')
+
+  if (argv.includes('--pdf-only')) {
+    pdf = true
+    png = false
+  }
+
+  for (let i = 2; i < argv.length; i++) {
+    if (argv[i] === '--lang' && argv[i + 1]) {
+      langs = argv[++i].split(',').map((l) => l.trim())
+    }
+  }
+
+  return { langs, pdf, png }
+}
+
 function isMissingBrowserError(err) {
   const msg = err instanceof Error ? err.message : String(err)
   return msg.includes("Executable doesn't exist") || msg.includes('browserType.launch')
@@ -63,33 +93,79 @@ async function ensureQrCode() {
   console.log('QR code written:', qrPath)
 }
 
-async function renderPdf() {
-  let playwright
+function loadPlaywright() {
   try {
-    playwright = require('playwright')
+    return require('playwright')
   } catch {
     console.error('Fehlende Abhängigkeit: "npm install -D playwright" in client/ ausführen.')
     process.exit(1)
   }
+}
+
+async function renderPdf(page, htmlPath, pdfPath) {
+  await page.goto(pathToFileURL(htmlPath).href, { waitUntil: 'networkidle' })
+  await page.pdf({
+    path: pdfPath,
+    format: 'A4',
+    printBackground: true,
+    preferCSSPageSize: true,
+    margin: { top: 0, right: 0, bottom: 0, left: 0 }
+  })
+  console.log('PDF written:', pdfPath)
+}
+
+async function renderPng(page, htmlPath, pngPath) {
+  await page.goto(pathToFileURL(htmlPath).href, { waitUntil: 'networkidle' })
+  await page.screenshot({
+    path: pngPath,
+    fullPage: true,
+    type: 'png'
+  })
+  console.log('PNG written:', pngPath)
+}
+
+async function generateForLocale(playwright, lang, { pdf, png }) {
+  const locale = LOCALES[lang]
+  if (!locale) {
+    console.error(`Unknown locale: ${lang}`)
+    process.exit(1)
+  }
+
+  const htmlPath = resolve(marketingDir, locale.html)
+  const baseName = `kapteins-daagbok-beta-flyer${locale.suffix}`
+  const pdfPath = resolve(marketingDir, `${baseName}.pdf`)
+  const pngPath = resolve(marketingDir, `${baseName}.png`)
+
+  console.log(`\n→ ${lang.toUpperCase()} (${locale.html})`)
 
   await ensurePlaywrightChromium(playwright)
-
   const browser = await playwright.chromium.launch({ headless: true })
+
   try {
-    const page = await browser.newPage()
-    await page.goto(pathToFileURL(htmlPath).href, { waitUntil: 'networkidle' })
-    await page.pdf({
-      path: pdfPath,
-      format: 'A4',
-      printBackground: true,
-      preferCSSPageSize: true,
-      margin: { top: 0, right: 0, bottom: 0, left: 0 }
-    })
-    console.log('PDF written:', pdfPath)
+    if (pdf) {
+      const page = await browser.newPage()
+      await renderPdf(page, htmlPath, pdfPath)
+      await page.close()
+    }
+
+    if (png) {
+      const context = await browser.newContext({
+        viewport: { width: 794, height: 1123 },
+        deviceScaleFactor: 2
+      })
+      const page = await context.newPage()
+      await renderPng(page, htmlPath, pngPath)
+      await context.close()
+    }
   } finally {
     await browser.close()
   }
 }
 
+const { langs, pdf, png } = parseArgs(process.argv)
 await ensureQrCode()
-await renderPdf()
+
+const playwright = loadPlaywright()
+for (const lang of langs) {
+  await generateForLocale(playwright, lang, { pdf, png })
+}

scripts/lib/deepl-translate.mjs

@@ -0,0 +1,185 @@
+/**
+ * Shared DeepL API helpers for batch translation scripts.
+ * @see https://developers.deepl.com/docs/getting-started/quickstart
+ */
+
+import { readFileSync } from 'node:fs'
+import { resolve, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const repoRoot = resolve(__dirname, '../..')
+
+/** Terms that must not be translated (product, tech, brands). */
+export const NO_TRANSLATE_TERMS = [
+  'Kapteins Daagbok',
+  'Kiel.Sailing.City.',
+  'KnorrLabs',
+  'Markus F.J. Busche',
+  'kapteins-daagbok.eu',
+  'elpatron+kd@mailbox.org',
+  'GPX/KML',
+  'GPX',
+  'KML',
+  'PDF',
+  'CSV',
+  'PWA',
+  'E2E',
+  'Passkey',
+  'OpenWeatherMap',
+  'Safari',
+  'iPad',
+  'iPhone',
+  'Android',
+  'Knorrstr. 16 · 24106 Kiel',
+  'KnorrLabs · Markus F.J. Busche · Knorrstr. 16 · 24106 Kiel · elpatron+kd@mailbox.org'
+]
+
+const PLACEHOLDER_RE = /\{\{[^}]+\}\}/g
+
+export function loadEnvKey() {
+  const fromEnv = process.env.DEEPL_API_KEY ?? process.env.DeepLAPIKey
+  if (fromEnv) return fromEnv.trim()
+
+  try {
+    const envPath = resolve(repoRoot, '.env')
+    const content = readFileSync(envPath, 'utf8')
+    for (const line of content.split('\n')) {
+      const match = line.match(/^(?:DEEPL_API_KEY|DeepLAPIKey)\s*=\s*(.+)$/)
+      if (match) return match[1].trim()
+    }
+  } catch {
+    // .env optional when key is exported in shell
+  }
+
+  throw new Error('DeepL API key missing. Set DEEPL_API_KEY or DeepLAPIKey in .env')
+}
+
+export function resolveApiUrl(apiKey) {
+  if (process.env.DEEPL_API_URL) return process.env.DEEPL_API_URL
+  return apiKey.endsWith(':fx')
+    ? 'https://api-free.deepl.com/v2/translate'
+    : 'https://api.deepl.com/v2/translate'
+}
+
+export function protectText(text) {
+  const segments = []
+  let protectedText = text.replace(PLACEHOLDER_RE, (match) => {
+    const id = segments.length
+    segments.push(match)
+    return `__X${id}__`
+  })
+
+  for (const term of NO_TRANSLATE_TERMS) {
+    if (!protectedText.includes(term)) continue
+    const id = segments.length
+    segments.push(term)
+    protectedText = protectedText.split(term).join(`__X${id}__`)
+  }
+
+  return { text: protectedText, segments }
+}
+
+export function restoreText(text, segments) {
+  let restored = text
+  segments.forEach((value, id) => {
+    restored = restored.replaceAll(`__X${id}__`, value)
+    restored = restored.replaceAll(`__ X ${id} __`, value)
+    restored = restored.replaceAll(`__X ${id}__`, value)
+  })
+  return restored
+}
+
+function sleep(ms) {
+  return new Promise((resolveSleep) => setTimeout(resolveSleep, ms))
+}
+
+export async function translateBatch(texts, targetLang, { sourceLang = 'DE', apiKey, retries = 3 } = {}) {
+  if (texts.length === 0) return []
+
+  const key = apiKey ?? loadEnvKey()
+  const url = resolveApiUrl(key)
+  const protectedEntries = texts.map((text) => protectText(text))
+
+  const body = {
+    text: protectedEntries.map((entry) => entry.text),
+    source_lang: sourceLang,
+    target_lang: targetLang
+  }
+
+  for (let attempt = 0; attempt < retries; attempt++) {
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: {
+        Authorization: `DeepL-Auth-Key ${key}`,
+        'Content-Type': 'application/json',
+        'User-Agent': 'kapteins-daagbok-translate/1.0'
+      },
+      body: JSON.stringify(body)
+    })
+
+    if (response.status === 429 && attempt < retries - 1) {
+      const waitMs = 1500 * (attempt + 1)
+      console.warn(`Rate limited — waiting ${waitMs}ms…`)
+      await sleep(waitMs)
+      continue
+    }
+
+    if (!response.ok) {
+      const detail = await response.text()
+      throw new Error(`DeepL error ${response.status}: ${detail}`)
+    }
+
+    const payload = await response.json()
+    return payload.translations.map((item, index) =>
+      restoreText(item.text, protectedEntries[index].segments)
+    )
+  }
+
+  throw new Error('DeepL translation failed after retries')
+}
+
+export async function translateTexts(texts, targetLang, options = {}) {
+  const batchSize = options.batchSize ?? 40
+  const results = []
+
+  for (let i = 0; i < texts.length; i += batchSize) {
+    const batch = texts.slice(i, i + batchSize)
+    const translated = await translateBatch(batch, targetLang, options)
+    results.push(...translated)
+    if (i + batchSize < texts.length) {
+      process.stdout.write(`  ${Math.min(i + batchSize, texts.length)}/${texts.length}\r`)
+      await sleep(300)
+    }
+  }
+
+  process.stdout.write(`  ${texts.length}/${texts.length}\n`)
+  return results
+}
+
+export function flattenTranslation(obj, prefix = '') {
+  const entries = []
+  for (const [key, value] of Object.entries(obj)) {
+    const path = prefix ? `${prefix}.${key}` : key
+    if (value && typeof value === 'object' && !Array.isArray(value)) {
+      entries.push(...flattenTranslation(value, path))
+    } else if (typeof value === 'string') {
+      entries.push([path, value])
+    }
+  }
+  return entries
+}
+
+export function unflattenTranslation(entries) {
+  const root = {}
+  for (const [path, value] of entries) {
+    const parts = path.split('.')
+    let node = root
+    for (let i = 0; i < parts.length - 1; i++) {
+      node[parts[i]] ??= {}
+      node = node[parts[i]]
+    }
+    node[parts[parts.length - 1]] = value
+  }
+  return root
+}

scripts/translate-flyer.mjs

@@ -0,0 +1,155 @@
+#!/usr/bin/env node
+/**
+ * Generate localized beta flyer HTML from the German master via DeepL.
+ * Only visible body text and <title> are translated — CSS/HTML structure stay intact.
+ *
+ * Usage: node scripts/translate-flyer.mjs [--lang da,sv,nb]
+ */
+
+import { readFile, writeFile } from 'node:fs/promises'
+import { resolve, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import { loadEnvKey, translateTexts } from './lib/deepl-translate.mjs'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const repoRoot = resolve(__dirname, '..')
+const sourcePath = resolve(repoRoot, 'docs/marketing/beta-flyer.html')
+
+const TARGETS = {
+  da: { code: 'DA', htmlLang: 'da', file: 'beta-flyer.da.html' },
+  sv: { code: 'SV', htmlLang: 'sv', file: 'beta-flyer.sv.html' },
+  nb: { code: 'NB', htmlLang: 'nb', file: 'beta-flyer.nb.html' }
+}
+
+const LANG_LIST_BLOCK = `<span class="lang-list"><span class="lang-item"><svg class="feature-flag" viewBox="0 0 5 3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="5" height="1" fill="#000"/><rect y="1" width="5" height="1" fill="#D00"/><rect y="2" width="5" height="1" fill="#FFCE00"/></svg>Deutsch</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 60 30" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><clipPath id="gb-a"><path d="M0 0v30h60V0z"/></clipPath><clipPath id="gb-b"><path d="M30 15h30v15zv15H0z"/></clipPath><g clip-path="url(#gb-a)"><path d="M0 0v30h60V0z" fill="#012169"/><path d="M0 0l60 30m0-30L0 30" stroke="#fff" stroke-width="6"/><path d="M0 0l60 30m0-30L0 30" clip-path="url(#gb-b)" stroke="#C8102E" stroke-width="4"/><path d="M30 0v30M0 15h60" stroke="#fff" stroke-width="10"/><path d="M30 0v30M0 15h60" stroke="#C8102E" stroke-width="6"/></g></svg>English</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 37 28" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="37" height="28" fill="#C8102E"/><rect x="12" width="4" height="28" fill="#fff"/><rect y="12" width="37" height="4" fill="#fff"/></svg>Dansk</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 16 10" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="16" height="10" fill="#006AA7"/><rect x="5" width="2" height="10" fill="#FECC00"/><rect y="4" width="16" height="2" fill="#FECC00"/></svg>Svenska</span><span class="lang-sep">·</span><span class="lang-item"><svg class="feature-flag" viewBox="0 0 22 16" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><rect width="22" height="16" fill="#BA0C2F"/><rect x="6" width="4" height="16" fill="#fff"/><rect y="6" width="22" height="4" fill="#fff"/><rect x="7" width="2" height="16" fill="#00205B"/><rect y="7" width="22" height="2" fill="#00205B"/></svg>Norsk</span></span>`
+
+/** Pull translatable strings from visible content only (never from <style>). */
+function collectSegments(html) {
+  const segments = []
+
+  const titleMatch = html.match(/<title>([^<]*)<\/title>/i)
+  if (titleMatch?.[1]?.trim()) {
+    segments.push({ kind: 'title', original: titleMatch[1] })
+  }
+
+  const bodyMatch = html.match(/<body[^>]*>([\s\S]*?)<\/body>/i)
+  const bodyHtml = bodyMatch?.[1] ?? ''
+
+  const textRe = />([^<]+)</g
+  let match
+  while ((match = textRe.exec(bodyHtml)) !== null) {
+    const text = match[1]
+    if (!text.trim()) continue
+    // Legal imprint stays identical in all locales
+    if (text.includes('KnorrLabs')) continue
+    segments.push({ kind: 'text', original: text })
+  }
+
+  const ariaRe = /aria-label="([^"]+)"/g
+  while ((match = ariaRe.exec(bodyHtml)) !== null) {
+    segments.push({ kind: 'aria', original: match[1] })
+  }
+
+  const altRe = /alt="([^"]+)"/g
+  while ((match = altRe.exec(bodyHtml)) !== null) {
+    segments.push({ kind: 'alt', original: match[1] })
+  }
+
+  return segments
+}
+
+function applySegments(html, segments, translated) {
+  let result = html
+
+  segments.forEach((segment, index) => {
+    const next = translated[index]
+    if (segment.original === next) return
+
+    switch (segment.kind) {
+      case 'title':
+        result = result.replace(
+          `<title>${segment.original}</title>`,
+          `<title>${next}</title>`
+        )
+        break
+      case 'text': {
+        const needle = `>${segment.original}<`
+        const pos = result.indexOf(needle)
+        if (pos === -1) return
+        result = `${result.slice(0, pos)}>${next}<${result.slice(pos + needle.length)}`
+        break
+      }
+      case 'aria':
+        result = result.replace(
+          `aria-label="${segment.original}"`,
+          `aria-label="${next}"`
+        )
+        break
+      case 'alt':
+        result = result.replace(
+          `alt="${segment.original}"`,
+          `alt="${next}"`
+        )
+        break
+      default:
+        break
+    }
+  })
+
+  return result
+}
+
+function patchLanguageFeature(html) {
+  return html.replace(
+    /(<div class="feature"><span class="feature-icon">✦<\/span>)<span class="lang-list">[\s\S]*?<\/span>(<\/div>)/,
+    `$1${LANG_LIST_BLOCK}$2`
+  )
+}
+
+function parseArgs(argv) {
+  let langs = Object.keys(TARGETS)
+  for (let i = 2; i < argv.length; i++) {
+    if (argv[i] === '--lang' && argv[i + 1]) {
+      langs = argv[++i].split(',').map((l) => l.trim())
+    }
+  }
+  return langs
+}
+
+async function main() {
+  const langs = parseArgs(process.argv)
+  const apiKey = loadEnvKey()
+  const sourceHtml = await readFile(sourcePath, 'utf8')
+  const segments = collectSegments(sourceHtml)
+  const texts = segments.map((s) => s.original)
+
+  console.log(`Translating ${texts.length} visible strings per locale…`)
+
+  for (const lang of langs) {
+    const target = TARGETS[lang]
+    if (!target) {
+      console.error(`Unknown language: ${lang}`)
+      process.exit(1)
+    }
+
+    console.log(`\n→ ${target.file}`)
+    const translated = await translateTexts(texts, target.code, {
+      sourceLang: 'DE',
+      apiKey,
+      batchSize: 20
+    })
+
+    let html = applySegments(sourceHtml, segments, translated)
+    html = html.replace(/<html lang="de">/, `<html lang="${target.htmlLang}">`)
+    html = patchLanguageFeature(html)
+
+    const outPath = resolve(repoRoot, 'docs/marketing', target.file)
+    await writeFile(outPath, html, 'utf8')
+    console.log(`Wrote ${outPath}`)
+  }
+}
+
+main().catch((err) => {
+  console.error(err.message ?? err)
+  process.exit(1)
+})

scripts/translate-locales.mjs

@@ -0,0 +1,99 @@
+#!/usr/bin/env node
+/**
+ * Translate i18n locale JSON from German master via DeepL.
+ *
+ * Usage:
+ *   node scripts/translate-locales.mjs [--lang da,sv,nb] [--source client/src/i18n/locales/de.json]
+ */
+
+import { readFile, writeFile } from 'node:fs/promises'
+import { resolve, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import {
+  flattenTranslation,
+  loadEnvKey,
+  translateTexts,
+  unflattenTranslation
+} from './lib/deepl-translate.mjs'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const repoRoot = resolve(__dirname, '..')
+const defaultSource = resolve(repoRoot, 'client/src/i18n/locales/de.json')
+
+const TARGETS = {
+  da: 'DA',
+  sv: 'SV',
+  nb: 'NB'
+}
+
+/** Keys whose values stay identical to source (language names, brand). */
+const COPY_AS_IS_PREFIXES = ['languages.', 'app.name']
+
+function parseArgs(argv) {
+  let langs = Object.keys(TARGETS)
+  let sourcePath = defaultSource
+
+  for (let i = 2; i < argv.length; i++) {
+    if (argv[i] === '--lang' && argv[i + 1]) {
+      langs = argv[++i].split(',').map((l) => l.trim())
+    } else if (argv[i] === '--source' && argv[i + 1]) {
+      sourcePath = resolve(repoRoot, argv[++i])
+    }
+  }
+
+  return { langs, sourcePath }
+}
+
+function shouldCopyAsIs(path) {
+  return COPY_AS_IS_PREFIXES.some((prefix) => path === prefix || path.startsWith(prefix))
+}
+
+async function translateLocale(sourceJson, langCode, apiKey) {
+  const entries = flattenTranslation(sourceJson.translation)
+  const toTranslate = []
+  const indices = []
+
+  entries.forEach(([path, value], index) => {
+    if (shouldCopyAsIs(path)) return
+    toTranslate.push(value)
+    indices.push(index)
+  })
+
+  console.log(`Translating ${toTranslate.length} strings to ${langCode.toUpperCase()}…`)
+  const translated = await translateTexts(toTranslate, TARGETS[langCode], {
+    sourceLang: 'DE',
+    apiKey
+  })
+
+  const resultEntries = [...entries]
+  indices.forEach((entryIndex, i) => {
+    resultEntries[entryIndex][1] = translated[i]
+  })
+
+  return { translation: unflattenTranslation(resultEntries) }
+}
+
+async function main() {
+  const { langs, sourcePath } = parseArgs(process.argv)
+  const apiKey = loadEnvKey()
+  const sourceRaw = await readFile(sourcePath, 'utf8')
+  const sourceJson = JSON.parse(sourceRaw)
+
+  for (const lang of langs) {
+    if (!TARGETS[lang]) {
+      console.error(`Unknown language: ${lang}`)
+      process.exit(1)
+    }
+
+    const outPath = resolve(repoRoot, `client/src/i18n/locales/${lang}.json`)
+    console.log(`\n→ ${lang}.json`)
+    const translated = await translateLocale(sourceJson, lang, apiKey)
+    await writeFile(outPath, `${JSON.stringify(translated, null, 2)}\n`, 'utf8')
+    console.log(`Wrote ${outPath}`)
+  }
+}
+
+main().catch((err) => {
+  console.error(err.message ?? err)
+  process.exit(1)
+})

scripts/validate-i18n-keys.mjs

@@ -0,0 +1,52 @@
+#!/usr/bin/env node
+/**
+ * Verify all locale JSON files have identical key sets.
+ * Usage: node scripts/validate-i18n-keys.mjs
+ */
+
+import { readFile } from 'node:fs/promises'
+import { resolve, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import { flattenTranslation } from './lib/deepl-translate.mjs'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const localesDir = resolve(__dirname, '../client/src/i18n/locales')
+const localeFiles = ['de.json', 'en.json', 'da.json', 'sv.json', 'nb.json']
+
+async function loadKeys(filename) {
+  const raw = await readFile(resolve(localesDir, filename), 'utf8')
+  const json = JSON.parse(raw)
+  return flattenTranslation(json.translation).map(([path]) => path).sort()
+}
+
+async function main() {
+  const keySets = {}
+  for (const file of localeFiles) {
+    keySets[file] = await loadKeys(file)
+  }
+
+  const master = keySets['de.json']
+  let failed = false
+
+  for (const file of localeFiles) {
+    if (file === 'de.json') continue
+    const keys = keySets[file]
+    const missing = master.filter((k) => !keys.includes(k))
+    const extra = keys.filter((k) => !master.includes(k))
+    if (missing.length || extra.length) {
+      failed = true
+      console.error(`\n${file}:`)
+      if (missing.length) console.error(`  missing (${missing.length}):`, missing.slice(0, 10).join(', '))
+      if (extra.length) console.error(`  extra (${extra.length}):`, extra.slice(0, 10).join(', '))
+    } else {
+      console.log(`${file}: OK (${keys.length} keys)`)
+    }
+  }
+
+  if (failed) process.exit(1)
+}
+
+main().catch((err) => {
+  console.error(err)
+  process.exit(1)
+})

server/prisma/schema.prisma

@@ -22,6 +22,7 @@ model User {
   collaborations           Collaboration[]
   pushSubscriptions        PushSubscription[]
   notificationPrefs        UserNotificationPrefs?
+  appearancePrefs          UserAppearancePrefs?
 }
 
 model PushSubscription {
@@ -48,6 +49,15 @@ model UserNotificationPrefs {
   user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 }
 
+model UserAppearancePrefs {
+  userId      String   @id
+  theme       String   @default("auto")
+  colorScheme String   @default("auto")
+  updatedAt   DateTime @updatedAt
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+}
+
 model Credential {
   id           String   @id @default(uuid())
   userId       String

server/src/routes/auth.ts

@@ -38,6 +38,17 @@ function normalizeCredentialLabel(label: unknown): string | null {
   return trimmed.slice(0, 64)
 }
 
+const VALID_THEMES = new Set(['auto', 'ocean', 'material', 'cupertino'])
+const VALID_COLOR_SCHEMES = new Set(['auto', 'light', 'dark'])
+
+function parseThemePreference(value: unknown): string | null {
+  return typeof value === 'string' && VALID_THEMES.has(value) ? value : null
+}
+
+function parseColorSchemePreference(value: unknown): string | null {
+  return typeof value === 'string' && VALID_COLOR_SCHEMES.has(value) ? value : null
+}
+
 router.post('/register-options', async (req, res) => {
   try {
     const { username } = req.body
@@ -426,6 +437,57 @@ router.post('/rotate-recovery', requireReauth, async (req: any, res) => {
   }
 })
 
+router.get('/appearance-prefs', requireUser, async (req: any, res) => {
+  try {
+    const prefs = await prisma.userAppearancePrefs.findUnique({
+      where: { userId: req.userId }
+    })
+
+    return res.json({
+      theme: prefs?.theme ?? 'auto',
+      colorScheme: prefs?.colorScheme ?? 'auto',
+      persisted: prefs != null
+    })
+  } catch (error: any) {
+    console.error('Error reading appearance prefs:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
+router.put('/appearance-prefs', requireUser, async (req: any, res) => {
+  try {
+    const theme = parseThemePreference(req.body?.theme)
+    const colorScheme = parseColorSchemePreference(req.body?.colorScheme)
+    if (!theme || !colorScheme) {
+      return res.status(400).json({ error: 'Invalid theme or colorScheme' })
+    }
+
+    const prefs = await prisma.userAppearancePrefs.upsert({
+      where: { userId: req.userId },
+      create: {
+        userId: req.userId,
+        theme,
+        colorScheme,
+        updatedAt: new Date()
+      },
+      update: {
+        theme,
+        colorScheme,
+        updatedAt: new Date()
+      }
+    })
+
+    return res.json({
+      theme: prefs.theme,
+      colorScheme: prefs.colorScheme,
+      persisted: true
+    })
+  } catch (error: any) {
+    console.error('Error updating appearance prefs:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
 router.get('/profile', requireUser, async (req: any, res) => {
   try {
     const user = await prisma.user.findUnique({

server/src/routes/feedback.ts

@@ -5,7 +5,7 @@ import { analyzeFeedbackSpam, feedbackLimiter } from '../middleware/feedbackProt
 
 const router = Router()
 
-const VALID_CATEGORIES = new Set(['bug', 'feature', 'general'])
+const VALID_CATEGORIES = new Set(['bug', 'feature', 'general', 'translation'])
 const MAX_MESSAGE_LENGTH = 2000
 const MAX_EMAIL_LENGTH = 254
 const EMAIL_PATTERN = /^[^\s@]+@[^\s@]+\.[^\s@]+$/