chore: release v0.1.0.51

fix(ui): Segel-Picker-Layout und Formular-Reset korrigieren
Flex-Layout für Pills und Toggle wiederherstellen und den Einklapp-Zustand beim Leeren des Ereignisformulars zurücksetzen. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-31 11:52:20 +02:00 · 2026-05-31 11:52:10 +02:00 · 2026-05-31 11:50:39 +02:00 · 2026-05-31 11:50:23 +02:00 · 2026-05-31 11:48:30 +02:00 · 2026-05-31 11:42:37 +02:00
63 changed files with 5728 additions and 428 deletions
@@ -1 +1 @@
-0.1.0.38
+0.1.0.52
@@ -5,11 +5,14 @@
    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Kostenloses, werbefreies digitales Yacht-Logbuch mit End-to-End-Verschlüsselung und Passkey-Anmeldung. Reisetage, GPS-Tracks, Crew und Schiffsdaten sicher dokumentieren – auch offline als PWA." />
-    <meta name="keywords" content="Yacht-Logbuch, Schiffstagebuch, Bordlogbuch, Segeln, Passkey, E2E-Verschlüsselung, GPS-Track, maritimes Logbuch, kostenlos, werbefrei, gratis, ohne Werbung" />
+    <meta name="keywords" content="Yacht-Logbuch, Schiffstagebuch, Bordlogbuch, Segeln, Passkey, E2E-Verschlüsselung, GPS-Track, maritimes Logbuch, kostenlos, werbefrei, gratis, ohne Werbung, yacht logbook, sailing log, ad-free" />
    <meta name="author" content="Markus F.J. Busche" />
    <meta name="robots" content="index, follow" />
    <meta name="application-name" content="Kapteins Daagbok" />
    <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="x-default" href="https://kapteins-daagbok.eu/" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
@@ -33,7 +36,7 @@
    <script defer data-domain="kapteins-daagbok.eu" src="https://plausible.elpatron.me/js/script.tagged-events.js"></script>
    <title>Kapteins Daagbok – Kostenloses digitales Yacht-Logbuch (werbefrei)</title>
  </head>
-  <body>
+  <body style="margin:0;background:#0b0c10;color:#e2e8f0">
    <div id="root"></div>
    <script type="module" src="/src/main.tsx"></script>
  </body>
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@@ -3360,6 +3522,16 @@
        "url": "https://github.com/sponsors/ljharb"
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@@ -3541,6 +3713,16 @@
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@@ -3642,6 +3824,33 @@
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@@ -3848,6 +4057,16 @@
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@@ -3979,6 +4198,19 @@
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@@ -4068,6 +4300,13 @@
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@@ -6705,6 +6996,13 @@
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+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/stackback/-/stackback-0.0.2.tgz",
+      "integrity": "sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/stackblur-canvas": {
      "version": "2.7.0",
      "resolved": "https://registry.npmjs.org/stackblur-canvas/-/stackblur-canvas-2.7.0.tgz",
@@ -6783,6 +7088,13 @@
        "node": ">=0.1.14"
      }
    },
+    "node_modules/std-env": {
+      "version": "3.10.0",
+      "resolved": "https://registry.npmjs.org/std-env/-/std-env-3.10.0.tgz",
+      "integrity": "sha512-5GS12FdOZNliM5mAOxFRg7Ir0pWz8MdpYm6AY6VPkGpbA7ZzmbzNcBJQ0GPvvyWgcY7QAhCgf9Uy89I03faLkg==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/stop-iteration-iterator": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/stop-iteration-iterator/-/stop-iteration-iterator-1.1.0.tgz",
@@ -6937,6 +7249,26 @@
        "node": ">=10"
      }
    },
+    "node_modules/strip-literal": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/strip-literal/-/strip-literal-3.1.0.tgz",
+      "integrity": "sha512-8r3mkIM/2+PpjHoOtiAW8Rg3jJLHaV7xPwG+YRGrv6FP0wwk/toTpATxWYOW0BKdWwl82VT2tFYi5DlROa0Mxg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "js-tokens": "^9.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      }
+    },
+    "node_modules/strip-literal/node_modules/js-tokens": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-9.0.1.tgz",
+      "integrity": "sha512-mxa9E9ITFOt0ban3j6L5MpjwegGz6lBQmM1IJkWeBZGcMxto50+eWdjC/52xDbS2vy0k7vIMK0Fe2wfL9OQSpQ==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/supports-preserve-symlinks-flag": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
@@ -7018,6 +7350,20 @@
        "utrie": "^1.0.2"
      }
    },
+    "node_modules/tinybench": {
+      "version": "2.9.0",
+      "resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.9.0.tgz",
+      "integrity": "sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/tinyexec": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-0.3.2.tgz",
+      "integrity": "sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/tinyglobby": {
      "version": "0.2.16",
      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.16.tgz",
@@ -7035,6 +7381,36 @@
        "url": "https://github.com/sponsors/SuperchupuDev"
      }
    },
+    "node_modules/tinypool": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/tinypool/-/tinypool-1.1.1.tgz",
+      "integrity": "sha512-Zba82s87IFq9A9XmjiX5uZA/ARWDrB03OHlq+Vw1fSdt0I+4/Kutwy8BP4Y/y/aORMo61FQ0vIb5j44vSo5Pkg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      }
+    },
+    "node_modules/tinyrainbow": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/tinyrainbow/-/tinyrainbow-2.0.0.tgz",
+      "integrity": "sha512-op4nsTR47R6p0vMUUoYl/a+ljLFVtlfaXkLQmqfLR1qHma1h/ysYk4hEXZ880bf2CYgTskvTa/e196Vd5dDQXw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/tinyspy": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/tinyspy/-/tinyspy-4.0.4.tgz",
+      "integrity": "sha512-azl+t0z7pw/z958Gy9svOTuzqIk6xq+NSheJzn5MMWtWTFywIacg2wUlzKFGtt3cthx0r2SxMK0yzJOR0IES7Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
    "node_modules/tr46": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
@@ -7439,6 +7815,29 @@
        }
      }
    },
+    "node_modules/vite-node": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/vite-node/-/vite-node-3.2.4.tgz",
+      "integrity": "sha512-EbKSKh+bh1E1IFxeO0pg1n4dvoOTt0UDiXMd/qn++r98+jPO1xtJilvXldeuQ8giIB5IkpjCgMleHMNEsGH6pg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cac": "^6.7.14",
+        "debug": "^4.4.1",
+        "es-module-lexer": "^1.7.0",
+        "pathe": "^2.0.3",
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0"
+      },
+      "bin": {
+        "vite-node": "vite-node.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
    "node_modules/vite-plugin-pwa": {
      "version": "1.3.0",
      "resolved": "https://registry.npmjs.org/vite-plugin-pwa/-/vite-plugin-pwa-1.3.0.tgz",
@@ -7470,6 +7869,79 @@
        }
      }
    },
+    "node_modules/vitest": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/vitest/-/vitest-3.2.4.tgz",
+      "integrity": "sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/chai": "^5.2.2",
+        "@vitest/expect": "3.2.4",
+        "@vitest/mocker": "3.2.4",
+        "@vitest/pretty-format": "^3.2.4",
+        "@vitest/runner": "3.2.4",
+        "@vitest/snapshot": "3.2.4",
+        "@vitest/spy": "3.2.4",
+        "@vitest/utils": "3.2.4",
+        "chai": "^5.2.0",
+        "debug": "^4.4.1",
+        "expect-type": "^1.2.1",
+        "magic-string": "^0.30.17",
+        "pathe": "^2.0.3",
+        "picomatch": "^4.0.2",
+        "std-env": "^3.9.0",
+        "tinybench": "^2.9.0",
+        "tinyexec": "^0.3.2",
+        "tinyglobby": "^0.2.14",
+        "tinypool": "^1.1.1",
+        "tinyrainbow": "^2.0.0",
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0",
+        "vite-node": "3.2.4",
+        "why-is-node-running": "^2.3.0"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@types/debug": "^4.1.12",
+        "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0",
+        "@vitest/browser": "3.2.4",
+        "@vitest/ui": "3.2.4",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@types/debug": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/void-elements": {
      "version": "3.1.0",
      "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
@@ -7486,6 +7958,16 @@
      "dev": true,
      "license": "BSD-2-Clause"
    },
+    "node_modules/whatwg-mimetype": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
+      "integrity": "sha512-nt+N2dzIutVRxARx1nghPKGv1xHikU7HKdfafKkLNLindmPU/ch3U31NOCGGA/dmPcmb1VlofO0vnKAcsm0o/Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
    "node_modules/whatwg-url": {
      "version": "7.1.0",
      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.1.0.tgz",
@@ -7610,6 +8092,23 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
+    "node_modules/why-is-node-running": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
+      "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "siginfo": "^2.0.0",
+        "stackback": "0.0.2"
+      },
+      "bin": {
+        "why-is-node-running": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/word-wrap": {
      "version": "1.2.5",
      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
@@ -7855,6 +8354,28 @@
        "node": ">=8"
      }
    },
+    "node_modules/ws": {
+      "version": "8.21.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.0.tgz",
+      "integrity": "sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/y18n": {
      "version": "4.0.3",
      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
@@ -7,6 +7,7 @@
    "dev": "vite",
    "build": "tsc -b && vite build",
    "lint": "eslint .",
+    "test": "vitest run",
    "preview": "vite preview",
    "generate:flyer": "node ../scripts/generate-beta-flyer.mjs",
    "generate:flyer:setup": "playwright install chromium"
@@ -36,12 +37,14 @@
    "eslint-plugin-react-hooks": "^7.1.1",
    "eslint-plugin-react-refresh": "^0.5.2",
    "globals": "^17.6.0",
+    "happy-dom": "^20.9.0",
    "playwright": "^1.51.0",
    "qrcode": "^1.5.4",
    "typescript": "~6.0.2",
    "typescript-eslint": "^8.59.2",
    "vite": "^6.3.5",
-    "vite-plugin-pwa": "^1.0.1"
+    "vite-plugin-pwa": "^1.0.1",
+    "vitest": "^3.2.4"
  },
  "engines": {
    "node": ">=20.0.0"
@@ -2,6 +2,7 @@ import { useState, useEffect, useCallback } from 'react'
 import './App.css'
 import { DialogProvider } from './components/ModalDialog.tsx'
 import AuthOnboarding from './components/AuthOnboarding.tsx'
+import UserProfilePage from './components/UserProfilePage.tsx'
 import LogbookDashboard from './components/LogbookDashboard.tsx'
 import VesselForm from './components/VesselForm.tsx'
 import CrewForm from './components/CrewForm.tsx'
@@ -13,7 +14,14 @@ import SettingsForm from './components/SettingsForm.tsx'
 import InvitationAcceptance from './components/InvitationAcceptance.tsx'
 import AppTourOverlay from './components/AppTourOverlay.tsx'
 import { AppTourProvider, useAppTour, type AppTab } from './context/AppTourContext.tsx'
-import { getActiveMasterKey, logoutUser, checkServerSession } from './services/auth.js'
+import { UnsavedChangesProvider, useUnsavedChangesContext } from './context/UnsavedChangesContext.tsx'
+import {
+  logoutUser,
+  checkServerSession,
+  hasUnlockedLocalSession,
+  persistSessionUserId
+} from './services/auth.js'
+import AppErrorBoundary from './components/AppErrorBoundary.tsx'
 import { PlausibleEvents, trackPlausibleEvent } from './services/analytics.js'
 import {
  applyAppearanceToDocument,
@@ -28,6 +36,7 @@ import PwaInstallPrompt from './components/PwaInstallPrompt.tsx'
 import PwaUpdatePrompt from './components/PwaUpdatePrompt.tsx'
 import AppFooter from './components/AppFooter.tsx'
 import LogbookRoleBadge from './components/LogbookRoleBadge.tsx'
+import BetaBadge from './components/BetaBadge.tsx'
 import { db } from './services/db.js'
 import { getLogbookAccess } from './services/logbookAccess.js'
 import type { LogbookAccessRole } from './services/logbook.js'
@@ -47,6 +56,7 @@ const PENDING_PUSH_LOGBOOK_KEY = 'pending_push_logbook_id'

 function App() {
  const { t, i18n } = useTranslation()
+  const { confirmLeave } = useUnsavedChangesContext()
  const { registerNavigation, requestStartAfterLogin, isActive, currentStepId } = useAppTour()
  const [isAuthenticated, setIsAuthenticated] = useState(false)
  const [activeLogbookId, setActiveLogbookId] = useState<string | null>(null)
@@ -58,6 +68,7 @@ function App() {
  const [online, setOnline] = useState(navigator.onLine)
  const [isSyncing, setIsSyncing] = useState(false)
  const [isAcceptingInvite, setIsAcceptingInvite] = useState(false)
+  const [showUserProfile, setShowUserProfile] = useState(false)

  // Viewer mode for read-only shared links
  const [isViewerMode, setIsViewerMode] = useState(false)
@@ -203,6 +214,53 @@ function App() {
    }
  }, [])

+  const clearAuthenticatedAppState = useCallback(() => {
+    setIsAuthenticated(false)
+    setActiveLogbookId(null)
+    setActiveLogbookTitle(null)
+    setShowUserProfile(false)
+    setTourSelectedEntryId(null)
+    setDemoHighlightEntryId(null)
+  }, [])
+
+  /** After PWA/bfcache resume, React state may still say "logged in" while the master key is gone. */
+  const enforceUnlockedSession = useCallback(() => {
+    if (isViewerMode || isDemoMode || isAcceptingInvite) return
+    // Require full local session (incl. userId) so API calls are not left headless.
+    if (isAuthenticated && !hasUnlockedLocalSession()) {
+      clearAuthenticatedAppState()
+    }
+  }, [
+    isAuthenticated,
+    isViewerMode,
+    isDemoMode,
+    isAcceptingInvite,
+    clearAuthenticatedAppState
+  ])
+
+  useEffect(() => {
+    enforceUnlockedSession()
+  }, [enforceUnlockedSession])
+
+  useEffect(() => {
+    const onPageShow = (event: PageTransitionEvent) => {
+      if (event.persisted) {
+        enforceUnlockedSession()
+      }
+    }
+    const onVisibility = () => {
+      if (document.visibilityState === 'visible') {
+        enforceUnlockedSession()
+      }
+    }
+    window.addEventListener('pageshow', onPageShow)
+    document.addEventListener('visibilitychange', onVisibility)
+    return () => {
+      window.removeEventListener('pageshow', onPageShow)
+      document.removeEventListener('visibilitychange', onVisibility)
+    }
+  }, [enforceUnlockedSession])
+
  useEffect(() => {
    let cancelled = false

@@ -211,13 +269,12 @@ function App() {
        const session = await checkServerSession()
        if (cancelled) return

-        if (session.authenticated && session.userId) {
-          localStorage.setItem('active_userid', session.userId)
+        if (session.authenticated) {
+          persistSessionUserId(session.userId)
        }

-        const savedUser = localStorage.getItem('active_username')
-        const key = getActiveMasterKey()
-        if (session.authenticated && savedUser && key) {
+        // Cookie alone is insufficient — need in-memory master key, username, and userId for API.
+        if (session.authenticated && hasUnlockedLocalSession()) {
          setIsAuthenticated(true)
          const savedLogbookId = localStorage.getItem('active_logbook_id')
          const savedLogbookTitle = localStorage.getItem('active_logbook_title')
@@ -226,6 +283,7 @@ function App() {
            setActiveLogbookTitle(savedLogbookTitle)
          }
        }
+        // authenticated + crypto but no userId: stay on login (enforceUnlockedSession guards active UI)
      } catch (err) {
        if (!cancelled) {
          console.warn('Session restore failed:', err)
@@ -236,7 +294,7 @@ function App() {
    return () => {
      cancelled = true
    }
-  }, [])
+  }, [clearAuthenticatedAppState])

  useEffect(() => {
    syncRouteFromLocation()
@@ -346,18 +404,27 @@ function App() {
    consumePendingPushLogbook()
  }

-  const handleLogout = () => {
+  const handleTabChange = async (tab: AppTab) => {
+    if (tab === activeTab) return
+    if (!(await confirmLeave())) return
+    setActiveTab(tab)
+  }
+
+  const handleLogout = async () => {
+    if (!(await confirmLeave())) return
    void logoutUser()
    setIsAuthenticated(false)
    setActiveLogbookId(null)
    setActiveLogbookTitle(null)
+    setShowUserProfile(false)
    setTourSelectedEntryId(null)
    setDemoHighlightEntryId(null)
    localStorage.removeItem('active_logbook_id')
    localStorage.removeItem('active_logbook_title')
  }

-  const handleBackToDashboard = () => {
+  const handleBackToDashboard = async () => {
+    if (!(await confirmLeave())) return
    setActiveLogbookId(null)
    setActiveLogbookTitle(null)
    setTourSelectedEntryId(null)
@@ -420,19 +487,29 @@ function App() {
    )
  }

-  const pwaInstallBanner = <PwaInstallPrompt variant="banner" />
+  const pwaInstallBanner = !isActive ? <PwaInstallPrompt variant="banner" /> : null

  const logbookReadOnly =
    activeLogbookRecord?.isShared === 1 && activeAccessRole === 'READ'
+  const isLogbookOwner =
+    activeAccessRole === 'OWNER' || activeLogbookRecord?.isShared !== 1

  if (!activeLogbookId) {
    return (
      <div style={{ display: 'contents' }}>
        {pwaInstallBanner}
-        <LogbookDashboard
-          onSelectLogbook={selectLogbook}
-          onLogout={handleLogout}
-        />
+        {showUserProfile ? (
+          <UserProfilePage
+            onBack={() => setShowUserProfile(false)}
+            onLogout={handleLogout}
+          />
+        ) : (
+          <LogbookDashboard
+            onSelectLogbook={selectLogbook}
+            onLogout={handleLogout}
+            onOpenProfile={() => setShowUserProfile(true)}
+          />
+        )}
      </div>
    )
  }
@@ -445,13 +522,14 @@ function App() {
        {/* Active Logbook Header */}
        <header className="app-header">
          <div className="app-header-left">
-            <button className="btn-back" onClick={handleBackToDashboard}>
+            <button className="btn-back" onClick={handleBackToDashboard} title={t('nav.dashboard')}>
              <ChevronLeft size={16} />
-              {t('nav.dashboard')}
+              <span className="hide-mobile">{t('nav.dashboard')}</span>
            </button>
            <div className="app-title-area">
              <div className="app-title-row">
                <h2>{activeLogbookTitle}</h2>
+                <BetaBadge />
                {activeAccessRole && activeAccessRole !== 'OWNER' && (
                  <LogbookRoleBadge role={activeAccessRole} />
                )}
@@ -503,7 +581,7 @@ function App() {
        <aside className="app-sidebar">
          <button
            className={`sidebar-btn ${activeTab === 'logs' ? 'active' : ''}`}
-            onClick={() => setActiveTab('logs')}
+            onClick={() => void handleTabChange('logs')}
            data-tour="nav-logs"
          >
            <FileText size={18} />
@@ -512,7 +590,7 @@ function App() {
          
          <button
            className={`sidebar-btn ${activeTab === 'vessel' ? 'active' : ''}`}
-            onClick={() => setActiveTab('vessel')}
+            onClick={() => void handleTabChange('vessel')}
            data-tour="nav-vessel"
          >
            <Ship size={18} />
@@ -521,7 +599,7 @@ function App() {

          <button
            className={`sidebar-btn ${activeTab === 'crew' ? 'active' : ''}`}
-            onClick={() => setActiveTab('crew')}
+            onClick={() => void handleTabChange('crew')}
            data-tour="nav-crew"
          >
            <Users size={18} />
@@ -540,7 +618,7 @@ function App() {

          <button
            className={`sidebar-btn ${activeTab === 'stats' ? 'active' : ''}`}
-            onClick={() => setActiveTab('stats')}
+            onClick={() => void handleTabChange('stats')}
            data-tour="nav-stats"
          >
            <BarChart2 size={18} />
@@ -549,7 +627,7 @@ function App() {

          <button
            className={`sidebar-btn ${activeTab === 'settings' ? 'active' : ''}`}
-            onClick={() => setActiveTab('settings')}
+            onClick={() => void handleTabChange('settings')}
          >
            <Settings size={18} />
            {t('nav.settings')}
@@ -569,11 +647,15 @@ function App() {
          )}

          {activeTab === 'vessel' && (
-            <VesselForm logbookId={activeLogbookId} readOnly={logbookReadOnly} />
+            <VesselForm logbookId={activeLogbookId} readOnly={logbookReadOnly || !isLogbookOwner} />
          )}

          {activeTab === 'crew' && (
-            <CrewForm logbookId={activeLogbookId} readOnly={logbookReadOnly} />
+            <CrewForm
+              logbookId={activeLogbookId}
+              readOnly={logbookReadOnly}
+              skipperReadOnly={!isLogbookOwner}
+            />
          )}

          {activeTab === 'stats' && activeLogbookId && activeLogbookTitle && (
@@ -601,13 +683,17 @@ function App() {

 export default function AppWrapper() {
  return (
-    <DialogProvider>
-      <AppTourProvider>
-        <PwaUpdatePrompt />
-        <App />
-        <AppTourOverlay />
-      </AppTourProvider>
-      <AppFooter />
-    </DialogProvider>
+    <AppErrorBoundary>
+      <DialogProvider>
+        <UnsavedChangesProvider>
+          <AppTourProvider>
+            <PwaUpdatePrompt />
+            <App />
+            <AppTourOverlay />
+          </AppTourProvider>
+          <AppFooter />
+        </UnsavedChangesProvider>
+      </DialogProvider>
+    </AppErrorBoundary>
  )
 }
@@ -46,6 +46,7 @@ export default function AccountDangerZone({ className = '' }: AccountDangerZoneP
      </div>

      <p className="account-danger-zone__desc">{t('settings.danger_zone_desc')}</p>
+      <p className="account-danger-zone__hint">{t('settings.delete_backup_hint')}</p>

      <div className="form-actions account-danger-zone__actions">
        <button
@@ -0,0 +1,42 @@
+import { Component, type ErrorInfo, type ReactNode } from 'react'
+
+interface Props {
+  children: ReactNode
+}
+
+interface State {
+  error: Error | null
+}
+
+export default class AppErrorBoundary extends Component<Props, State> {
+  state: State = { error: null }
+
+  static getDerivedStateFromError(error: Error): State {
+    return { error }
+  }
+
+  componentDidCatch(error: Error, info: ErrorInfo) {
+    console.error('Unhandled app error:', error, info.componentStack)
+  }
+
+  render() {
+    if (!this.state.error) {
+      return this.props.children
+    }
+
+    return (
+      <div className="auth-screen">
+        <div className="auth-card glass" role="alert">
+          <h2 style={{ marginTop: 0 }}>Kapteins Daagbok</h2>
+          <p style={{ color: 'var(--app-text-muted)', lineHeight: 1.5 }}>
+            Die App ist nach dem Neustart in einen fehlerhaften Zustand geraten. Bitte neu laden
+            oder die App vollständig beenden und erneut öffnen.
+          </p>
+          <button type="button" className="btn primary" style={{ width: '100%', marginTop: 16 }} onClick={() => window.location.reload()}>
+            Neu laden
+          </button>
+        </div>
+      </div>
+    )
+  }
+}
@@ -15,12 +15,33 @@ interface SpotlightRect {
  height: number
 }

+const TOOLTIP_EDGE_MARGIN = 16
+const TOOLTIP_ESTIMATED_HEIGHT = 240
+
 function buildCutoutClipPath(rect: SpotlightRect): string {
  const right = rect.left + rect.width
  const bottom = rect.top + rect.height
  return `polygon(evenodd, 0 0, 100vw 0, 100vw 100vh, 0 100vh, 0 0, ${rect.left}px ${rect.top}px, ${right}px ${rect.top}px, ${right}px ${bottom}px, ${rect.left}px ${bottom}px, ${rect.left}px ${rect.top}px)`
 }

+function computeTooltipTop(spotlight: SpotlightRect): number {
+  const viewportBottom = window.innerHeight - TOOLTIP_EDGE_MARGIN
+  const below = spotlight.top + spotlight.height + 12
+  if (below + TOOLTIP_ESTIMATED_HEIGHT <= viewportBottom) {
+    return below
+  }
+
+  const above = spotlight.top - 12 - TOOLTIP_ESTIMATED_HEIGHT
+  if (above >= TOOLTIP_EDGE_MARGIN) {
+    return above
+  }
+
+  return Math.max(
+    TOOLTIP_EDGE_MARGIN,
+    Math.min(below, viewportBottom - TOOLTIP_ESTIMATED_HEIGHT)
+  )
+}
+
 export default function AppTourOverlay() {
  const { t } = useTranslation()
  const {
@@ -111,12 +132,8 @@ export default function AppTourOverlay() {
  const tooltipStyle = centered
    ? undefined
    : spotlight
-      ? {
-          top: Math.min(window.innerHeight - 220, spotlight.top + spotlight.height + 12),
-          left: Math.min(window.innerWidth - 340, Math.max(16, spotlight.left)),
-          maxWidth: '420px'
-        }
-      : { top: '20%', left: '50%', transform: 'translateX(-50%)', maxWidth: '420px' }
+      ? { top: computeTooltipTop(spotlight) }
+      : { top: '20%' }

  const backdropStyle = spotlight && !centered
    ? { clipPath: buildCutoutClipPath(spotlight) }
@@ -13,6 +13,8 @@ import {
 } from '../services/auth.js'
 import { KeyRound, ShieldAlert, Languages, HelpCircle, UserRound, X } from 'lucide-react'
 import RegistrationDisclaimer from './RegistrationDisclaimer.tsx'
+import DisclaimerModal from './DisclaimerModal.tsx'
+import BetaBadge from './BetaBadge.tsx'

 interface AuthOnboardingProps {
  onAuthenticated: () => void
@@ -49,6 +51,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo

  const [isNewRegistration, setIsNewRegistration] = useState(false)
  const [showDisclaimer, setShowDisclaimer] = useState(false)
+  const [showHelp, setShowHelp] = useState(false)

  const finishAuth = () => {
    if (isNewRegistration) {
@@ -272,6 +275,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
            </label>
            <input
              type="password"
+              name="new-pin"
              inputMode="numeric"
              pattern="[0-9]*"
              maxLength={8}
@@ -281,6 +285,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
              onChange={(e) => setPinInput(e.target.value.replace(/\D/g, ''))}
              disabled={loading}
              required
+              autoComplete="new-password"
              style={{ width: '100%', padding: '12px', boxSizing: 'border-box' }}
            />
          </div>
@@ -321,6 +326,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
          <div className="input-group">
            <input
              type="password"
+              name="pin"
              inputMode="numeric"
              pattern="[0-9]*"
              maxLength={8}
@@ -330,6 +336,7 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
              onChange={(e) => setPinLoginInput(e.target.value.replace(/\D/g, ''))}
              disabled={loading}
              required
+              autoComplete="current-password"
              style={{ width: '100%', padding: '12px', boxSizing: 'border-box' }}
            />
          </div>
@@ -405,10 +412,14 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo

  // Render 3: Standard Login / Registration options form
  return (
+    <>
    <div className="auth-card glass">
      <div className="auth-brand">
        <img src="/logo.png" alt="Kapteins Daagbok" className="auth-logo-img" />
-        <h1>{t('app.name')}</h1>
+        <div className="auth-brand-title-row">
+          <h1>{t('app.name')}</h1>
+          <BetaBadge />
+        </div>
        <p className="tagline">{t('auth.tagline')}</p>
      </div>

@@ -562,15 +573,23 @@ export default function AuthOnboarding({ onAuthenticated, onOpenDemo }: AuthOnbo
      </div>

      <div className="auth-footer">
-        <button className="btn-icon-text" onClick={toggleLanguage}>
+        <button type="button" className="btn-icon-text" onClick={toggleLanguage}>
          <Languages size={18} />
          {i18n.language.startsWith('de') ? 'English' : 'Deutsch'}
        </button>
-        <a href="#help" className="btn-icon-text link-sec">
+        <button
+          type="button"
+          className="btn-icon-text link-sec"
+          onClick={() => setShowHelp(true)}
+          title={t('disclaimer.button_title')}
+          aria-label={t('disclaimer.button_title')}
+        >
          <HelpCircle size={18} />
          {t('auth.help')}
-        </a>
+        </button>
      </div>
    </div>
+    <DisclaimerModal open={showHelp} onClose={() => setShowHelp(false)} />
+    </>
  )
 }
@@ -0,0 +1,19 @@
+import { useTranslation } from 'react-i18next'
+
+interface BetaBadgeProps {
+  className?: string
+}
+
+export default function BetaBadge({ className = '' }: BetaBadgeProps) {
+  const { t } = useTranslation()
+
+  return (
+    <span
+      className={`beta-badge ${className}`.trim()}
+      title={t('app.beta_hint')}
+      aria-label={t('app.beta_hint')}
+    >
+      {t('app.beta')}
+    </span>
+  )
+}
@@ -0,0 +1,285 @@
+import { useCallback, useId, useMemo, useRef, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import {
+  type CourseOutputMode,
+  type CourseStep,
+  dialDegreesToStorageValue,
+  formatCourseAngle,
+  formatCourseDisplay,
+  isCardinalDirection,
+  loadCourseDialStep,
+  parseCourseAngle,
+  pointerAngleToDegrees,
+  resolveCourseOutputMode,
+  saveCourseDialStep,
+  snapDegrees,
+  valueToDialDegrees
+} from '../utils/courseAngle.js'
+
+interface CourseDialInputProps {
+  value: string
+  onChange: (value: string) => void
+  disabled?: boolean
+  step?: CourseStep
+  allowCardinal?: boolean
+  displayMode?: 'degrees' | 'cardinal' | 'auto'
+  size?: 'md' | 'sm'
+  'aria-label': string
+  id?: string
+}
+
+const TICK_DEGREES = [0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330]
+
+function polarPoint(degrees: number, radius: number): { x: number; y: number } {
+  const rad = (degrees * Math.PI) / 180
+  return {
+    x: 100 + Math.sin(rad) * radius,
+    y: 100 - Math.cos(rad) * radius
+  }
+}
+
+export default function CourseDialInput({
+  value,
+  onChange,
+  disabled = false,
+  step: stepProp,
+  allowCardinal = false,
+  displayMode = 'degrees',
+  size = 'md',
+  'aria-label': ariaLabel,
+  id: idProp
+}: CourseDialInputProps) {
+  const { t } = useTranslation()
+  const generatedId = useId()
+  const inputId = idProp ?? `${generatedId}-input`
+  const svgRef = useRef<SVGSVGElement>(null)
+  const [step, setStep] = useState<CourseStep>(() => stepProp ?? loadCourseDialStep())
+  const [inputDraft, setInputDraft] = useState<string | null>(null)
+  const [inputError, setInputError] = useState<string | null>(null)
+  const [outputModeOverride, setOutputModeOverride] = useState<CourseOutputMode | null>(null)
+
+  const effectiveStep = stepProp ?? step
+  const outputMode =
+    outputModeOverride ??
+    resolveCourseOutputMode(value, displayMode, allowCardinal)
+
+  const dialDegrees = useMemo(
+    () => snapDegrees(valueToDialDegrees(value, allowCardinal), effectiveStep),
+    [value, allowCardinal, effectiveStep]
+  )
+
+  const centerLabel = useMemo(
+    () => formatCourseDisplay(value, allowCardinal),
+    [value, allowCardinal]
+  )
+
+  const tickLabel = useCallback(
+    (degrees: number) => {
+      if (degrees === 0) return t('logs.compass_n')
+      if (degrees === 90) return t('logs.compass_e')
+      if (degrees === 180) return t('logs.compass_s')
+      if (degrees === 270) return t('logs.compass_w')
+      return String(degrees).padStart(3, '0')
+    },
+    [t]
+  )
+
+  const applyDegrees = useCallback(
+    (degrees: number) => {
+      onChange(dialDegreesToStorageValue(degrees, outputMode, effectiveStep))
+      setInputDraft(null)
+      setInputError(null)
+    },
+    [onChange, outputMode, effectiveStep]
+  )
+
+  const updateFromPointer = useCallback(
+    (clientX: number, clientY: number) => {
+      const svg = svgRef.current
+      if (!svg || disabled) return
+      const rect = svg.getBoundingClientRect()
+      const cx = rect.left + rect.width / 2
+      const cy = rect.top + rect.height / 2
+      const raw = pointerAngleToDegrees(clientX, clientY, cx, cy)
+      applyDegrees(raw)
+    },
+    [applyDegrees, disabled]
+  )
+
+  const handlePointerDown = (e: React.PointerEvent<SVGSVGElement>) => {
+    if (disabled) return
+    e.preventDefault()
+    e.currentTarget.setPointerCapture(e.pointerId)
+    updateFromPointer(e.clientX, e.clientY)
+  }
+
+  const handlePointerMove = (e: React.PointerEvent<SVGSVGElement>) => {
+    if (disabled || !e.currentTarget.hasPointerCapture(e.pointerId)) return
+    updateFromPointer(e.clientX, e.clientY)
+  }
+
+  const handlePointerUp = (e: React.PointerEvent<SVGSVGElement>) => {
+    if (e.currentTarget.hasPointerCapture(e.pointerId)) {
+      e.currentTarget.releasePointerCapture(e.pointerId)
+    }
+  }
+
+  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setInputDraft(e.target.value)
+  }
+
+  const commitInput = () => {
+    const draft = (inputDraft ?? value).trim()
+    setInputDraft(null)
+    if (!draft) {
+      onChange('')
+      setInputError(null)
+      return
+    }
+    if (allowCardinal && outputMode === 'cardinal' && isCardinalDirection(draft)) {
+      onChange(draft.toUpperCase())
+      setInputError(null)
+      return
+    }
+    const parsed = parseCourseAngle(draft)
+    if (parsed === null) {
+      setInputError(t('logs.course_invalid'))
+      return
+    }
+    onChange(formatCourseAngle(snapDegrees(parsed, effectiveStep)))
+    setInputError(null)
+  }
+
+  const handleInputKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
+    if (e.key === 'Enter') {
+      e.preventDefault()
+      commitInput()
+      return
+    }
+    if (e.key === 'ArrowUp' || e.key === 'ArrowDown') {
+      e.preventDefault()
+      const base = parseCourseAngle(value) ?? dialDegrees
+      const delta = e.key === 'ArrowUp' ? effectiveStep : -effectiveStep
+      applyDegrees(base + delta)
+    }
+  }
+
+  const handleStepChange = (next: CourseStep) => {
+    if (stepProp !== undefined) return
+    setStep(next)
+    saveCourseDialStep(next)
+    const parsed = parseCourseAngle(value)
+    if (parsed !== null) {
+      onChange(formatCourseAngle(snapDegrees(parsed, next)))
+    }
+  }
+
+  const toggleOutputMode = () => {
+    const next: CourseOutputMode = outputMode === 'cardinal' ? 'degrees' : 'cardinal'
+    setOutputModeOverride(next)
+    const deg = valueToDialDegrees(value, allowCardinal)
+    onChange(dialDegreesToStorageValue(deg, next, effectiveStep))
+  }
+
+  const inputValue = inputDraft ?? value
+  const sliderNow = dialDegrees
+
+  return (
+    <div
+      className={`course-dial course-dial--${size}${disabled ? ' course-dial--disabled' : ''}`}
+    >
+      {!stepProp && (
+        <div className="course-dial__step-toolbar" role="group" aria-label={t('logs.course_dial_step_label')}>
+          {([1, 5, 10] as const).map((s) => (
+            <button
+              key={s}
+              type="button"
+              className={`course-dial__step-btn${effectiveStep === s ? ' is-active' : ''}`}
+              onClick={() => handleStepChange(s)}
+              disabled={disabled}
+              aria-pressed={effectiveStep === s}
+            >
+              {s === 1 ? t('logs.course_step_fine') : s === 5 ? t('logs.course_step_medium') : t('logs.course_step_coarse')}
+            </button>
+          ))}
+        </div>
+      )}
+
+      <div
+        className="course-dial__ring-wrap"
+        role="slider"
+        aria-label={ariaLabel}
+        aria-valuemin={0}
+        aria-valuemax={360}
+        aria-valuenow={sliderNow}
+        aria-disabled={disabled}
+      >
+        <svg
+          ref={svgRef}
+          className="course-dial__svg"
+          viewBox="0 0 200 200"
+          onPointerDown={handlePointerDown}
+          onPointerMove={handlePointerMove}
+          onPointerUp={handlePointerUp}
+          onPointerCancel={handlePointerUp}
+        >
+          <circle className="course-dial__track" cx="100" cy="100" r="88" />
+          {TICK_DEGREES.map((deg) => {
+            const inner = polarPoint(deg, 76)
+            const outer = polarPoint(deg, 88)
+            const label = polarPoint(deg, 64)
+            return (
+              <g key={deg}>
+                <line className="course-dial__tick" x1={inner.x} y1={inner.y} x2={outer.x} y2={outer.y} />
+                <text className="course-dial__label" x={label.x} y={label.y} textAnchor="middle" dominantBaseline="middle">
+                  {tickLabel(deg)}
+                </text>
+              </g>
+            )
+          })}
+          <g className="course-dial__needle" transform={`rotate(${dialDegrees} 100 100)`}>
+            <line x1="100" y1="100" x2="100" y2="28" />
+            <circle cx="100" cy="100" r="6" />
+          </g>
+          <text className="course-dial__center" x="100" y="100" textAnchor="middle" dominantBaseline="middle">
+            {centerLabel}
+          </text>
+        </svg>
+      </div>
+
+      <p className="course-dial__hint">{t('logs.course_dial_hint')}</p>
+
+      <input
+        id={inputId}
+        type="text"
+        inputMode="numeric"
+        className="input-text course-dial__input"
+        value={inputValue}
+        onChange={handleInputChange}
+        onBlur={commitInput}
+        onKeyDown={handleInputKeyDown}
+        disabled={disabled}
+        placeholder={
+          outputMode === 'cardinal'
+            ? t('logs.course_placeholder_cardinal')
+            : t('logs.course_placeholder_degrees')
+        }
+        aria-label={ariaLabel}
+        aria-invalid={inputError ? true : undefined}
+      />
+
+      {inputError && <p className="course-dial__error">{inputError}</p>}
+
+      {allowCardinal && displayMode === 'auto' && (
+        <button
+          type="button"
+          className="course-dial__mode-toggle"
+          onClick={toggleOutputMode}
+          disabled={disabled}
+        >
+          {outputMode === 'cardinal' ? t('logs.wind_mode_degrees') : t('logs.wind_mode_cardinal')}
+        </button>
+      )}
+    </div>
+  )
+}
@@ -12,6 +12,7 @@ import { Users, User, Plus, Trash2, Edit2, Save, X, Check, Camera } from 'lucide
 interface CrewFormProps {
  logbookId: string
  readOnly?: boolean
+  skipperReadOnly?: boolean
  preloadedData?: any[]
 }

@@ -34,9 +35,15 @@ interface DecryptedCrew {
  data: CrewMemberData
 }

-export default function CrewForm({ logbookId, readOnly = false, preloadedData }: CrewFormProps) {
+export default function CrewForm({
+  logbookId,
+  readOnly = false,
+  skipperReadOnly = false,
+  preloadedData
+}: CrewFormProps) {
  const { t } = useTranslation()
  const { showConfirm } = useDialog()
+  const skipperFormReadOnly = readOnly || skipperReadOnly

  // Skipper profile state
  const [skipName, setSkipName] = useState('')
@@ -192,7 +199,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:

  const handleSaveSkipper = async (e: React.FormEvent) => {
    e.preventDefault()
-    if (readOnly) return
+    if (skipperFormReadOnly) return
    setSavingSkipper(true)
    setError(null)
    setSkipperSuccess(false)
@@ -397,10 +404,14 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:

        {error && <div className="auth-error mb-4">{error}</div>}

+        {skipperReadOnly && !readOnly && (
+          <p className="help-text mb-4">{t('crew.skipper_read_only_hint')}</p>
+        )}
+
        <form onSubmit={handleSaveSkipper} className="vessel-form">
          <div className="form-grid">
            <div className="vessel-photo-wrapper">
-              <div className="vessel-photo-preview" onClick={readOnly ? undefined : () => skipFileInputRef.current?.click()} style={{ cursor: readOnly ? 'default' : 'pointer' }}>
+              <div className="vessel-photo-preview" onClick={skipperFormReadOnly ? undefined : () => skipFileInputRef.current?.click()} style={{ cursor: skipperFormReadOnly ? 'default' : 'pointer' }}>
                {skipPhoto ? (
                  <img src={skipPhoto} alt={skipName || 'Skipper'} className="vessel-photo" />
                ) : (
@@ -408,7 +419,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                    <User size={48} className="placeholder-icon" />
                  </div>
                )}
-                {!readOnly && (
+                {!skipperFormReadOnly && (
                  <div className="vessel-photo-overlay">
                    <Camera size={24} />
                    <span>{skipPhoto ? t('vessel.photo_change') : t('vessel.photo_add')}</span>
@@ -416,7 +427,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                )}
              </div>
              
-              {!readOnly && (
+              {!skipperFormReadOnly && (
                <div className="vessel-photo-actions">
                  <button
                    type="button"
@@ -473,7 +484,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipName}
                onChange={(e) => setSkipName(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
                required
              />
            </div>
@@ -485,7 +496,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipAddress}
                onChange={(e) => setSkipAddress(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -496,7 +507,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipBirthDate}
                onChange={(e) => setSkipBirthDate(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -507,7 +518,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipPhone}
                onChange={(e) => setSkipPhone(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -518,7 +529,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipNationality}
                onChange={(e) => setSkipNationality(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -529,7 +540,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipPassport}
                onChange={(e) => setSkipPassport(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -540,7 +551,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipBloodType}
                onChange={(e) => setSkipBloodType(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -551,7 +562,7 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipAllergies}
                onChange={(e) => setSkipAllergies(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>

@@ -562,12 +573,12 @@ export default function CrewForm({ logbookId, readOnly = false, preloadedData }:
                className="input-text"
                value={skipDiseases}
                onChange={(e) => setSkipDiseases(e.target.value)}
-                disabled={savingSkipper || readOnly}
+                disabled={savingSkipper || skipperFormReadOnly}
              />
            </div>
          </div>

-          {!readOnly && (
+          {!skipperFormReadOnly && (
            <div className="form-actions">
              {skipperSuccess && (
                <div className="success-toast">
@@ -0,0 +1,58 @@
+import { useId, useMemo } from 'react'
+import { joinTimeHHMM, splitTimeHHMM } from '../utils/logEntryPayload.js'
+
+const HOURS = Array.from({ length: 24 }, (_, i) => String(i).padStart(2, '0'))
+const MINUTES = Array.from({ length: 60 }, (_, i) => String(i).padStart(2, '0'))
+
+interface EventTimeInput24hProps {
+  value: string
+  onChange: (value: string) => void
+  disabled?: boolean
+  'aria-label'?: string
+}
+
+export default function EventTimeInput24h({
+  value,
+  onChange,
+  disabled = false,
+  'aria-label': ariaLabel
+}: EventTimeInput24hProps) {
+  const baseId = useId()
+  const { hours, minutes } = useMemo(() => splitTimeHHMM(value), [value])
+
+  return (
+    <div className="time-input-24h">
+      <select
+        id={`${baseId}-hours`}
+        className="input-text time-input-24h__select"
+        value={hours}
+        onChange={(e) => onChange(joinTimeHHMM(e.target.value, minutes))}
+        disabled={disabled}
+        aria-label={ariaLabel ? `${ariaLabel} (h)` : undefined}
+      >
+        {HOURS.map((hour) => (
+          <option key={hour} value={hour}>
+            {hour}
+          </option>
+        ))}
+      </select>
+      <span className="time-input-24h__sep" aria-hidden="true">
+        :
+      </span>
+      <select
+        id={`${baseId}-minutes`}
+        className="input-text time-input-24h__select"
+        value={minutes}
+        onChange={(e) => onChange(joinTimeHHMM(hours, e.target.value))}
+        disabled={disabled}
+        aria-label={ariaLabel ? `${ariaLabel} (min)` : undefined}
+      >
+        {MINUTES.map((minute) => (
+          <option key={minute} value={minute}>
+            {minute}
+          </option>
+        ))}
+      </select>
+    </div>
+  )
+}
@@ -372,7 +372,7 @@ export default function LogEntriesList({
          <Calendar size={24} className="form-icon" />
          <h2>{t('logs.title')}</h2>
        </div>
-        <div style={{ display: 'flex', gap: '8px', alignItems: 'center' }}>
+        <div className="section-toolbar">
          <button className="btn secondary" onClick={handleDownloadCsv} disabled={loading || exporting || entries.length === 0} style={{ width: 'auto', padding: '8px 16px' }} title={t('logs.export_csv')}>
            <Download size={16} />
            <span className="hide-mobile">{exporting ? t('logs.exporting') : t('logs.export_csv')}</span>
@@ -384,9 +384,9 @@ export default function LogEntriesList({
          </button>

          {!readOnly && (
-            <button className="btn primary" onClick={handleCreate} disabled={loading || exporting} style={{ width: 'auto', padding: '8px 16px' }}>
+            <button className="btn primary" onClick={handleCreate} disabled={loading || exporting} style={{ width: 'auto', padding: '8px 16px' }} title={t('logs.new_entry')}>
              <Plus size={16} />
-              {t('logs.new_entry')}
+              <span className="hide-mobile">{t('logs.new_entry')}</span>
            </button>
          )}
        </div>
@@ -6,7 +6,7 @@ import { getLogbookKey } from '../services/logbookKeys.js'
 import { encryptJson, decryptJson } from '../services/crypto.js'
 import { syncLogbook } from '../services/sync.js'
 import { downloadLogbookPagePdf } from '../services/pdfExport.js'
-import { FileText, Save, ChevronLeft, Check, Compass, Plus, Trash2, MapPin, CloudSun, Clock, Download, Upload, Pencil, X } from 'lucide-react'
+import { FileText, Save, ChevronLeft, Check, Compass, Plus, Trash2, MapPin, CloudSun, Clock, Download, Upload, Pencil, X, ChevronDown, ChevronUp } from 'lucide-react'
 import PhotoCapture from './PhotoCapture.tsx'
 import SignatureSection from './SignatureSection.tsx'
 import TrackMap from './TrackMap.tsx'
@@ -16,11 +16,16 @@ import {
  fingerprintSignature,
  normalizedSerializedSignature,
  isPasskeySignature,
+  isClassicSignature,
+  createClassicSignature,
  isSignatureValidForEntry,
  hasAnySignature
 } from '../utils/signatures.js'
 import type { SignatureValue } from '../types/signatures.js'
-import { buildLogEntryPayload, type LogEventPayload } from '../utils/logEntryPayload.js'
+import { buildLogEntryPayload, sortLogEventsByTime, normalizeLogEvent, logEventsEqual, currentLocalTimeHHMM, isValidTimeHHMM, type LogEventPayload } from '../utils/logEntryPayload.js'
+import EventTimeInput24h from './EventTimeInput24h.tsx'
+import CourseDialInput from './CourseDialInput.tsx'
+import { degreesToCardinal } from '../utils/courseAngle.js'
 import { hashEntryForSigning } from '../utils/entryCanonicalHash.js'
 import { signLogEntry } from '../services/entrySigning.js'
 import { getLogbookAccess } from '../services/logbookAccess.js'
@@ -35,6 +40,8 @@ import {
  type SavedTrack
 } from '../services/trackUpload.js'
 import { computeTrackStats, formatTrackStats } from '../utils/trackStats.js'
+import { computeFuelPerMotorHour, formatFuelPerMotorHour } from '../utils/fuelStats.js'
+import { useRegisterUnsavedChanges } from '../context/UnsavedChangesContext.tsx'

 function emptyTankLevels() {
  return { morning: 0, refilled: 0, evening: 0, consumption: 0 }
@@ -46,6 +53,7 @@ function fingerprintFromStoredEntry(decrypted: Record<string, unknown>): string
  const trackDistance = decrypted.trackDistanceNm
  const trackSpeedMax = decrypted.trackSpeedMaxKn
  const trackSpeedAvg = decrypted.trackSpeedAvgKn
+  const motorHoursRaw = decrypted.motorHours

  const payload = buildLogEntryPayload({
    date: String(decrypted.date || ''),
@@ -76,6 +84,10 @@ function fingerprintFromStoredEntry(decrypted: Record<string, unknown>): string
      trackSpeedAvg != null && trackSpeedAvg !== ''
        ? parseFloat(String(trackSpeedAvg))
        : undefined,
+    motorHours:
+      motorHoursRaw != null && motorHoursRaw !== ''
+        ? parseFloat(String(motorHoursRaw))
+        : undefined,
    events: (decrypted.events as LogEventPayload[]) || []
  })

@@ -137,7 +149,7 @@ export default function LogEntryEditor({
  const [signSkipper, setSignSkipper] = useState<SignatureValue | ''>('')
  const [signCrew, setSignCrew] = useState<SignatureValue | ''>('')
  const [canSignSkipper, setCanSignSkipper] = useState(false)
-  const [hasWriteCollaborators, setHasWriteCollaborators] = useState(false)
+  const [canSignCrew, setCanSignCrew] = useState(false)
  const [isOnline, setIsOnline] = useState(navigator.onLine)
  const [entryHash, setEntryHash] = useState('')

@@ -146,11 +158,14 @@ export default function LogEntryEditor({
  const [trackSpeedMaxKn, setTrackSpeedMaxKn] = useState('')
  const [trackSpeedAvgKn, setTrackSpeedAvgKn] = useState('')

+  // Motor hours under engine propulsion (per travel day)
+  const [motorHours, setMotorHours] = useState('')
+
  // Events list state
  const [events, setEvents] = useState<LogEvent[]>([])

  // Add Event Form State
-  const [evTime, setEvTime] = useState('')
+  const [evTime, setEvTime] = useState(() => currentLocalTimeHHMM())
  const [evMgk, setEvMgk] = useState('')
  const [evRwk, setEvRwk] = useState('')
  const [evWindPressure, setEvWindPressure] = useState('')
@@ -161,12 +176,14 @@ export default function LogEntryEditor({
  const [evCurrent, setEvCurrent] = useState('')
  const [evHeel, setEvHeel] = useState('')
  const [evSailsOrMotor, setEvSailsOrMotor] = useState('')
+  const [sailsPickerExpanded, setSailsPickerExpanded] = useState(false)
  const [evLogReading, setEvLogReading] = useState('')
  const [evDistance, setEvDistance] = useState('')
  const [evGpsLat, setEvGpsLat] = useState('')
  const [evGpsLng, setEvGpsLng] = useState('')
  const [evRemarks, setEvRemarks] = useState('')
  const [evLocationName, setEvLocationName] = useState('')
+  const [activeCourseTab, setActiveCourseTab] = useState<'mgk' | 'rwk'>('mgk')

  const [loading, setLoading] = useState(false)
  const [saving, setSaving] = useState(false)
@@ -206,6 +223,11 @@ export default function LogEntryEditor({
    if (entry?.trackSpeedAvgKn != null && entry.trackSpeedAvgKn !== '') {
      setTrackSpeedAvgKn(String(entry.trackSpeedAvgKn))
    }
+    if (entry?.motorHours != null && entry.motorHours !== '') {
+      setMotorHours(String(entry.motorHours))
+    } else {
+      setMotorHours('')
+    }
  }

  const buildPayloadForSigning = useCallback((eventsOverride?: LogEvent[]) => {
@@ -229,16 +251,22 @@ export default function LogEntryEditor({
      trackDistanceNm: trackDistanceNm.trim() ? parseFloat(trackDistanceNm) : undefined,
      trackSpeedMaxKn: trackSpeedMaxKn.trim() ? parseFloat(trackSpeedMaxKn) : undefined,
      trackSpeedAvgKn: trackSpeedAvgKn.trim() ? parseFloat(trackSpeedAvgKn) : undefined,
+      motorHours: motorHours.trim() ? parseFloat(motorHours) : undefined,
      events: eventsOverride ?? events
    })
  }, [
    date, dayOfTravel, departure, destination,
    fwMorning, fwRefilled, fwEvening, fwConsumption,
    fuelMorning, fuelRefilled, fuelEvening, fuelConsumption,
-    trackDistanceNm, trackSpeedMaxKn, trackSpeedAvgKn,
+    trackDistanceNm, trackSpeedMaxKn, trackSpeedAvgKn, motorHours,
    events
  ])

+  const fuelPerMotorHour = useMemo(
+    () => computeFuelPerMotorHour(parseFloat(fuelConsumption) || 0, parseFloat(motorHours) || 0),
+    [fuelConsumption, motorHours]
+  )
+
  const currentFingerprint = useMemo(() => {
    const payload = buildPayloadForSigning()
    return JSON.stringify({
@@ -248,7 +276,60 @@ export default function LogEntryEditor({
    })
  }, [buildPayloadForSigning, signSkipper, signCrew])

-  const isDirty = savedFingerprint !== null && currentFingerprint !== savedFingerprint
+  const buildEventFromForm = (): LogEvent =>
+    normalizeLogEvent({
+      time: evTime,
+      mgk: evMgk,
+      rwk: evRwk,
+      windPressure: evWindPressure,
+      windDirection: evWindDirection,
+      windStrength: evWindStrength,
+      seaState: evSeaState,
+      weatherIcon: evWeatherIcon,
+      current: evCurrent,
+      heel: evHeel,
+      sailsOrMotor: evSailsOrMotor,
+      logReading: evLogReading,
+      distance: evDistance,
+      gpsLat: evGpsLat,
+      gpsLng: evGpsLng,
+      remarks: evRemarks
+    })
+
+  const applyEventFormToEvents = (eventData: LogEvent): LogEvent[] => {
+    if (editingEventIndex !== null) {
+      return sortLogEventsByTime(events.map((ev, idx) => (idx === editingEventIndex ? eventData : ev)))
+    }
+    return sortLogEventsByTime([...events, eventData])
+  }
+
+  const hasPendingEventForm = useMemo(() => {
+    if (!evTime.trim()) return false
+    const draft = buildEventFromForm()
+    if (editingEventIndex !== null) {
+      const original = events[editingEventIndex]
+      return original ? !logEventsEqual(draft, original) : false
+    }
+    return true
+  }, [
+    evTime, evMgk, evRwk, evWindPressure, evWindDirection, evWindStrength, evSeaState,
+    evWeatherIcon, evCurrent, evHeel, evSailsOrMotor, evLogReading, evDistance,
+    evGpsLat, evGpsLng, evRemarks, editingEventIndex, events
+  ])
+
+  const isDirty = savedFingerprint !== null && (
+    currentFingerprint !== savedFingerprint || hasPendingEventForm
+  )
+
+  const { confirmLeave } = useRegisterUnsavedChanges(
+    `log-entry-${entryId}`,
+    !readOnly && !loading && isDirty
+  )
+
+  const handleBack = async () => {
+    if (!(await confirmLeave())) return
+    onBack()
+  }

  const persistEntryToDb = useCallback(async (eventsOverride?: LogEvent[]) => {
    if (readOnly) return
@@ -308,8 +389,11 @@ export default function LogEntryEditor({
  useEffect(() => {
    getLogbookAccess(logbookId).then((access) => {
      if (!access) return
-      setCanSignSkipper(access.isOwner || access.role === 'WRITE')
-      setHasWriteCollaborators(access.writeCollaboratorCount > 0)
+      setCanSignSkipper(access.isOwner)
+      setCanSignCrew(
+        access.role === 'WRITE' ||
+        (access.isOwner && access.writeCollaboratorCount === 0)
+      )
    })
  }, [logbookId])

@@ -375,6 +459,7 @@ export default function LogEntryEditor({
  const crewSignatureValid = !isPasskeySignature(signCrew) || isSignatureValidForEntry(signCrew, entryHash)

  const handlePasskeySignSkipper = async () => {
+    if (!canSignSkipper) return
    const confirmed = await confirmSignWarning()
    if (!confirmed) return

@@ -392,6 +477,7 @@ export default function LogEntryEditor({
  }

  const handlePasskeySignCrew = async () => {
+    if (!canSignCrew) return
    const confirmed = await confirmSignWarning()
    if (!confirmed) return

@@ -483,7 +569,7 @@ export default function LogEntryEditor({
          setSignSkipper(normalizeSignature(preloadedEntry.signSkipper) || '')
          setSignCrew(normalizeSignature(preloadedEntry.signCrew) || '')
          loadTrackStatsFromEntry(preloadedEntry)
-          setEvents(preloadedEntry.events || [])
+          setEvents(sortLogEventsByTime((preloadedEntry.events || []).map(normalizeLogEvent)))
          setSavedFingerprint(fingerprintFromStoredEntry(preloadedEntry))
          return
        }
@@ -516,7 +602,7 @@ export default function LogEntryEditor({
            setSignSkipper(normalizeSignature(decrypted.signSkipper) || '')
            setSignCrew(normalizeSignature(decrypted.signCrew) || '')
            loadTrackStatsFromEntry(decrypted)
-            setEvents(decrypted.events || [])
+            setEvents(sortLogEventsByTime((decrypted.events || []).map(normalizeLogEvent)))
            setSavedFingerprint(fingerprintFromStoredEntry(decrypted))
          }
        }
@@ -732,10 +818,7 @@ export default function LogEntryEditor({
      
      // Calculate wind compass direction sector
      if (wind?.deg !== undefined) {
-        const deg = wind.deg
-        const sectors = ['N', 'NNE', 'NE', 'ENE', 'E', 'ESE', 'SE', 'SSE', 'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW']
-        const index = Math.round(deg / 22.5) % 16
-        setEvWindDirection(sectors[index])
+        setEvWindDirection(degreesToCardinal(wind.deg))
      }

      if (data.weather && Array.isArray(data.weather) && data.weather[0]) {
@@ -760,6 +843,9 @@ export default function LogEntryEditor({
    ? ['Großsegel', 'Genua', 'Fock', 'Spinnaker', 'Gennaker']
    : ['Mainsail', 'Genoa', 'Jib', 'Spinnaker', 'Gennaker']

+  const eventSailOptions = yachtSails.length > 0 ? yachtSails : defaultSails
+  const showSailsPickerToggle = eventSailOptions.length + 1 > 6
+
  const toggleSailOrMotor = (item: string) => {
    let currentItems = evSailsOrMotor
      .split(/\s*(?:\+|\bplus\b|,)\s*/i)
@@ -783,27 +869,17 @@ export default function LogEntryEditor({
    return currentItems.includes(item.toLowerCase())
  }

-  const buildEventFromForm = (): LogEvent => ({
-    time: evTime,
-    mgk: evMgk.trim(),
-    rwk: evRwk.trim(),
-    windPressure: evWindPressure.trim(),
-    windDirection: evWindDirection.trim(),
-    windStrength: evWindStrength.trim(),
-    seaState: evSeaState.trim(),
-    weatherIcon: evWeatherIcon.trim(),
-    current: evCurrent.trim(),
-    heel: evHeel.trim(),
-    sailsOrMotor: evSailsOrMotor.trim(),
-    logReading: evLogReading.trim(),
-    distance: evDistance.trim(),
-    gpsLat: evGpsLat.trim(),
-    gpsLng: evGpsLng.trim(),
-    remarks: evRemarks.trim()
+  const motorPropulsionLabel = t('logs.motor_propulsion')
+  const sortedEventSailOptions = [...eventSailOptions].sort((a, b) => {
+    const aActive = isItemActive(a)
+    const bActive = isItemActive(b)
+    if (aActive === bActive) return 0
+    return aActive ? -1 : 1
  })
+  const isMotorActive = isItemActive(motorPropulsionLabel)

  const clearEventForm = () => {
-    setEvTime('')
+    setEvTime(currentLocalTimeHHMM())
    setEvMgk('')
    setEvRwk('')
    setEvWindPressure('')
@@ -821,25 +897,27 @@ export default function LogEntryEditor({
    setEvRemarks('')
    setEvLocationName('')
    setEditingEventIndex(null)
+    setSailsPickerExpanded(false)
  }

  const fillEventForm = (ev: LogEvent) => {
-    setEvTime(ev.time)
-    setEvMgk(ev.mgk)
-    setEvRwk(ev.rwk)
-    setEvWindPressure(ev.windPressure)
-    setEvWindDirection(ev.windDirection)
-    setEvWindStrength(ev.windStrength)
-    setEvSeaState(ev.seaState)
-    setEvWeatherIcon(ev.weatherIcon)
-    setEvCurrent(ev.current)
-    setEvHeel(ev.heel)
-    setEvSailsOrMotor(ev.sailsOrMotor)
-    setEvLogReading(ev.logReading)
-    setEvDistance(ev.distance)
-    setEvGpsLat(ev.gpsLat)
-    setEvGpsLng(ev.gpsLng)
-    setEvRemarks(ev.remarks)
+    const normalized = normalizeLogEvent(ev)
+    setEvTime(normalized.time)
+    setEvMgk(normalized.mgk)
+    setEvRwk(normalized.rwk)
+    setEvWindPressure(normalized.windPressure)
+    setEvWindDirection(normalized.windDirection)
+    setEvWindStrength(normalized.windStrength)
+    setEvSeaState(normalized.seaState)
+    setEvWeatherIcon(normalized.weatherIcon)
+    setEvCurrent(normalized.current)
+    setEvHeel(normalized.heel)
+    setEvSailsOrMotor(normalized.sailsOrMotor)
+    setEvLogReading(normalized.logReading)
+    setEvDistance(normalized.distance)
+    setEvGpsLat(normalized.gpsLat)
+    setEvGpsLng(normalized.gpsLng)
+    setEvRemarks(normalized.remarks)
    setEvLocationName('')
  }

@@ -863,30 +941,28 @@ export default function LogEntryEditor({

  const handleSaveEvent = async (e: React.FormEvent) => {
    e.preventDefault()
-    if (readOnly || !evTime) return
+    if (readOnly || !isValidTimeHHMM(evTime)) return

    const eventData = buildEventFromForm()
-    let nextEvents: LogEvent[]
+    const isEdit = editingEventIndex !== null
+    const hadSkipperSignature = isEdit && !!signSkipper

-    if (editingEventIndex !== null) {
-      const hadSkipperSignature = !!signSkipper
+    if (hadSkipperSignature) {
      markSkipperSignatureClearedForEventChange()
-      nextEvents = events.map((ev, idx) => (idx === editingEventIndex ? eventData : ev))
+    }
+
+    const nextEvents = applyEventFormToEvents(eventData)
+
+    try {
+      await persistEntryToDb(nextEvents)
+      setEvents(nextEvents)
+      clearEventForm()
      if (hadSkipperSignature) {
        void showAlertRef.current(
          t('logs.sign_cleared_skipper_re_sign'),
          t('logs.sign_cleared_skipper_re_sign_title')
        )
      }
-    } else {
-      nextEvents = [...events, eventData]
-    }
-
-    setEvents(nextEvents)
-    clearEventForm()
-
-    try {
-      await persistEntryToDb(nextEvents)
    } catch (err: any) {
      console.error('Failed to auto-save event:', err)
      setError(err.message || 'Failed to save event.')
@@ -935,13 +1011,28 @@ export default function LogEntryEditor({

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
-    if (readOnly || !isDirty) return
+    if (readOnly) return
+
+    let eventsToSave = events
+
+    if (hasPendingEventForm) {
+      const isEdit = editingEventIndex !== null
+      if (isEdit && signSkipper) {
+        markSkipperSignatureClearedForEventChange()
+      }
+      eventsToSave = applyEventFormToEvents(buildEventFromForm())
+      setEvents(eventsToSave)
+      clearEventForm()
+    } else if (!isDirty) {
+      return
+    }
+
    setSaving(true)
    setError(null)
    setSuccess(false)

    try {
-      await persistEntryToDb()
+      await persistEntryToDb(eventsToSave)

      setSuccess(true)
      trackPlausibleEvent(PlausibleEvents.TRAVEL_DAY_SAVED)
@@ -972,7 +1063,7 @@ export default function LogEntryEditor({
      <div className="form-card" style={{ paddingBottom: '20px' }}>
        <div className="section-title-bar">
          <div className="section-title-left">
-            <button className="btn-back" onClick={onBack} style={{ padding: '6px 12px' }}>
+            <button className="btn-back" onClick={() => void handleBack()} style={{ padding: '6px 12px' }}>
              <ChevronLeft size={16} />
              {t('logs.back_to_list')}
            </button>
@@ -992,7 +1083,7 @@ export default function LogEntryEditor({
            style={{ width: 'auto', padding: '8px 16px' }}
          >
            <Download size={16} />
-            <span>{exporting ? t('logs.exporting_pdf') : t('logs.export_pdf')}</span>
+            <span className="hide-mobile">{exporting ? t('logs.exporting_pdf') : t('logs.export_pdf')}</span>
          </button>
        </div>
      </div>
@@ -1053,6 +1144,20 @@ export default function LogEntryEditor({
                disabled={saving || readOnly}
              />
            </div>
+
+            <div className="input-group">
+              <label>{t('logs.motor_hours')}</label>
+              <input
+                type="number"
+                className="input-text"
+                value={motorHours}
+                onChange={(e) => setMotorHours(e.target.value)}
+                disabled={saving || readOnly}
+                min="0"
+                step="0.1"
+                placeholder="0"
+              />
+            </div>
          </div>
        </div>

@@ -1163,6 +1268,22 @@ export default function LogEntryEditor({
                  aria-readonly="true"
                />
              </div>
+
+              <div className="input-group">
+                <label>{t('logs.fuel_per_motor_hour')}</label>
+                <input
+                  type="text"
+                  className="input-text consumption-value"
+                  value={
+                    fuelPerMotorHour != null
+                      ? `${formatFuelPerMotorHour(fuelPerMotorHour)} L/h`
+                      : '—'
+                  }
+                  readOnly
+                  tabIndex={-1}
+                  aria-readonly="true"
+                />
+              </div>
            </div>
          </div>
        </div>
@@ -1262,36 +1383,46 @@ export default function LogEntryEditor({
                  <Clock size={12} style={{ display: 'inline', marginRight: 4 }} />
                  {t('logs.event_time')} *
                </label>
-                <input
-                  type="time"
-                  className="input-text"
+                <EventTimeInput24h
                  value={evTime}
-                  onChange={(e) => setEvTime(e.target.value)}
+                  onChange={setEvTime}
                  disabled={saving}
+                  aria-label={t('logs.event_time')}
                />
              </div>

-              <div className="input-group">
-                <label>{t('logs.event_mgk')}</label>
-                <input
-                  type="text"
-                  placeholder="e.g. 180"
-                  className="input-text"
-                  value={evMgk}
-                  onChange={(e) => setEvMgk(e.target.value)}
-                  disabled={saving}
-                />
-              </div>
-
-              <div className="input-group">
-                <label>{t('logs.event_rwk')}</label>
-                <input
-                  type="text"
-                  placeholder="e.g. 185"
-                  className="input-text"
-                  value={evRwk}
-                  onChange={(e) => setEvRwk(e.target.value)}
+              <div className="input-group course-dial-section">
+                <label>
+                  <Compass size={12} style={{ display: 'inline', marginRight: 4 }} />
+                  {t('logs.event_course_section')}
+                </label>
+                <div className="course-dial-tabs" role="tablist" aria-label={t('logs.event_course_section')}>
+                  <button
+                    type="button"
+                    role="tab"
+                    aria-selected={activeCourseTab === 'mgk'}
+                    className={`course-dial-tab${activeCourseTab === 'mgk' ? ' is-active' : ''}`}
+                    onClick={() => setActiveCourseTab('mgk')}
+                    disabled={saving}
+                  >
+                    {t('logs.course_tab_mgk')}
+                  </button>
+                  <button
+                    type="button"
+                    role="tab"
+                    aria-selected={activeCourseTab === 'rwk'}
+                    className={`course-dial-tab${activeCourseTab === 'rwk' ? ' is-active' : ''}`}
+                    onClick={() => setActiveCourseTab('rwk')}
+                    disabled={saving}
+                  >
+                    {t('logs.course_tab_rwk')}
+                  </button>
+                </div>
+                <CourseDialInput
+                  value={activeCourseTab === 'mgk' ? evMgk : evRwk}
+                  onChange={activeCourseTab === 'mgk' ? setEvMgk : setEvRwk}
                  disabled={saving}
+                  aria-label={activeCourseTab === 'mgk' ? t('logs.event_mgk') : t('logs.event_rwk')}
                />
              </div>

@@ -1370,15 +1501,15 @@ export default function LogEntryEditor({
            </div>

            <div className="form-grid mb-4">
-              <div className="input-group">
+              <div className="input-group course-dial-section">
                <label>{t('logs.event_wind_direction')}</label>
-                <input
-                  type="text"
-                  placeholder="e.g. NNE"
-                  className="input-text"
+                <CourseDialInput
                  value={evWindDirection}
-                  onChange={(e) => setEvWindDirection(e.target.value)}
+                  onChange={setEvWindDirection}
                  disabled={saving || weatherLoading}
+                  allowCardinal
+                  displayMode="auto"
+                  aria-label={t('logs.event_wind_direction')}
                />
              </div>

@@ -1442,25 +1573,6 @@ export default function LogEntryEditor({
                  onChange={(e) => setEvSailsOrMotor(e.target.value)}
                  disabled={saving}
                />
-                <div className="sails-picker-container">
-                  <div className="sails-picker-pills">
-                    {(yachtSails.length > 0 ? yachtSails : defaultSails).map((sail) => (
-                      <span
-                        key={sail}
-                        className={`sail-pill ${isItemActive(sail) ? 'active' : ''}`}
-                        onClick={() => toggleSailOrMotor(sail)}
-                      >
-                        {sail}
-                      </span>
-                    ))}
-                    <span
-                      className={`sail-pill motor-pill ${isItemActive(t('logs.motor_propulsion')) ? 'active' : ''}`}
-                      onClick={() => toggleSailOrMotor(t('logs.motor_propulsion'))}
-                    >
-                      {t('logs.motor_propulsion')}
-                    </span>
-                  </div>
-                </div>
              </div>

              <div className="input-group">
@@ -1475,7 +1587,63 @@ export default function LogEntryEditor({
                />
              </div>

-              <div className="input-group" style={{ gridColumn: 'span 2' }}>
+              <div
+                className={[
+                  'sails-picker-container grid-span-2',
+                  showSailsPickerToggle ? 'is-collapsible' : '',
+                  showSailsPickerToggle && !sailsPickerExpanded ? 'is-collapsed' : '',
+                ].filter(Boolean).join(' ')}
+              >
+                <div className="sails-picker-pills">
+                  {isMotorActive && (
+                    <span
+                      className={`sail-pill motor-pill active`}
+                      onClick={() => toggleSailOrMotor(motorPropulsionLabel)}
+                    >
+                      {motorPropulsionLabel}
+                    </span>
+                  )}
+                  {sortedEventSailOptions.map((sail) => (
+                    <span
+                      key={sail}
+                      className={`sail-pill ${isItemActive(sail) ? 'active' : ''}`}
+                      onClick={() => toggleSailOrMotor(sail)}
+                    >
+                      {sail}
+                    </span>
+                  ))}
+                  {!isMotorActive && (
+                    <span
+                      className="sail-pill motor-pill"
+                      onClick={() => toggleSailOrMotor(motorPropulsionLabel)}
+                    >
+                      {motorPropulsionLabel}
+                    </span>
+                  )}
+                </div>
+                {showSailsPickerToggle && (
+                  <button
+                    type="button"
+                    className="sails-picker-toggle"
+                    onClick={() => setSailsPickerExpanded((prev) => !prev)}
+                    aria-expanded={sailsPickerExpanded}
+                  >
+                    {sailsPickerExpanded ? (
+                      <>
+                        <ChevronUp size={14} aria-hidden="true" />
+                        {t('logs.sails_picker_show_less')}
+                      </>
+                    ) : (
+                      <>
+                        <ChevronDown size={14} aria-hidden="true" />
+                        {t('logs.sails_picker_show_more')}
+                      </>
+                    )}
+                  </button>
+                )}
+              </div>
+
+              <div className="input-group grid-span-2">
                <label>{t('logs.event_remarks')}</label>
                <input
                  type="text"
@@ -1505,7 +1673,7 @@ export default function LogEntryEditor({
                type="button"
                className="btn secondary"
                onClick={handleSaveEvent}
-                disabled={saving || !evTime}
+                disabled={saving || !isValidTimeHHMM(evTime)}
                style={{ width: 'auto', padding: '10px 20px', display: 'flex' }}
              >
                {editingEventIndex !== null ? <Save size={16} /> : <Plus size={16} />}
@@ -1567,15 +1735,16 @@ export default function LogEntryEditor({
                    )}
                  </span>
                </div>
-                <div style={{ display: 'flex', gap: '8px', flexWrap: 'wrap' }}>
+                <div className="track-actions">
                  <button
                    type="button"
                    className="btn secondary"
                    onClick={() => downloadTrackFile(savedTrack)}
                    style={{ width: 'auto', padding: '6px 12px', fontSize: '13px', display: 'flex', alignItems: 'center', gap: '4px' }}
+                    title={t('logs.gps_tracking_btn_gpx')}
                  >
                    <Download size={14} />
-                    {t('logs.gps_tracking_btn_gpx')}
+                    <span className="hide-mobile">{t('logs.gps_tracking_btn_gpx')}</span>
                  </button>
                  {!readOnly && (
                    <button
@@ -1583,9 +1752,10 @@ export default function LogEntryEditor({
                      className="btn secondary"
                      onClick={handleDeleteTrack}
                      style={{ width: 'auto', padding: '6px 12px', fontSize: '13px', display: 'flex', alignItems: 'center', gap: '4px', background: 'rgba(239, 68, 68, 0.1)', color: '#ef4444', borderColor: 'rgba(239, 68, 68, 0.2)' }}
+                      title={t('logs.gps_track_delete')}
                    >
                      <Trash2 size={14} />
-                      {t('logs.gps_track_delete')}
+                      <span className="hide-mobile">{t('logs.gps_track_delete')}</span>
                    </button>
                  )}
                </div>
@@ -1646,13 +1816,40 @@ export default function LogEntryEditor({
          disabled={saving}
          isOnline={isOnline}
          canSignSkipper={canSignSkipper}
-          hasWriteCollaborators={hasWriteCollaborators}
+          canSignCrew={canSignCrew}
          signSkipper={signSkipper}
          signCrew={signCrew}
          skipperSignatureValid={skipperSignatureValid}
          crewSignatureValid={crewSignatureValid}
-          onSignSkipperChange={setSignSkipper}
-          onSignCrewChange={setSignCrew}
+          onSignSkipperChange={(value) => {
+            if (canSignSkipper && !readOnly) setSignSkipper(value)
+          }}
+          onSignCrewChange={(value) => {
+            if (!canSignCrew || readOnly) return
+            if (!value) {
+              setSignCrew('')
+              return
+            }
+            if (isPasskeySignature(value) || isClassicSignature(value)) {
+              setSignCrew(value)
+              return
+            }
+            if (!canSignSkipper) {
+              const userId = localStorage.getItem('active_userid') || ''
+              const username = localStorage.getItem('active_username') || ''
+              if (userId && username) {
+                setSignCrew(createClassicSignature({
+                  role: 'crew',
+                  userId,
+                  username,
+                  signedAt: new Date().toISOString(),
+                  payload: value
+                }))
+                return
+              }
+            }
+            setSignCrew(value)
+          }}
          onPasskeySignSkipper={handlePasskeySignSkipper}
          onPasskeySignCrew={handlePasskeySignCrew}
          onBeforeSign={confirmSignWarning}
@@ -12,6 +12,7 @@ import {
  type LogbookBackupPreview
 } from '../services/logbookBackup.js'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'

 interface LogbookBackupPanelProps {
  logbookId: string
@@ -41,7 +42,7 @@ function mapBackupError(code: string, t: (key: string) => string): string {
 }

 export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBackupPanelProps) {
-  const { t } = useTranslation()
+  const { t, i18n } = useTranslation()
  const { showConfirm } = useDialog()
  const fileInputRef = useRef<HTMLInputElement>(null)

@@ -58,6 +59,16 @@ export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBac
  const [error, setError] = useState<string | null>(null)
  const [success, setSuccess] = useState<string | null>(null)

+  const handleExportSubmit = async (e: React.FormEvent) => {
+    e.preventDefault()
+    await handleExport()
+  }
+
+  const handleImportSubmit = async (e: React.FormEvent) => {
+    e.preventDefault()
+    await handleRestore()
+  }
+
  const handleExport = async () => {
    setError(null)
    setSuccess(null)
@@ -209,40 +220,45 @@ export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBac
        </h4>
        <p className="text-muted backup-section-desc">{t('settings.backup_export_desc')}</p>

-        <div className="input-group">
-          <label htmlFor="backup-export-passphrase">{t('settings.backup_passphrase')}</label>
-          <input
-            id="backup-export-passphrase"
-            type="password"
-            className="input-text"
-            value={exportPassphrase}
-            onChange={(e) => setExportPassphrase(e.target.value)}
-            placeholder={t('settings.backup_passphrase_placeholder')}
-            autoComplete="new-password"
-            disabled={exporting}
-          />
-        </div>
-        <div className="input-group">
-          <label htmlFor="backup-export-confirm">{t('settings.backup_passphrase_confirm')}</label>
-          <input
-            id="backup-export-confirm"
-            type="password"
-            className="input-text"
-            value={exportConfirm}
-            onChange={(e) => setExportConfirm(e.target.value)}
-            autoComplete="new-password"
-            disabled={exporting}
-          />
-        </div>
-        <button
-          type="button"
-          className="btn primary"
-          onClick={handleExport}
-          disabled={exporting || !exportPassphrase || !exportConfirm}
-        >
-          <Download size={16} />
-          {exporting ? t('settings.backup_exporting') : t('settings.backup_export_btn')}
-        </button>
+        <form onSubmit={handleExportSubmit} className="backup-export-form">
+          <div className="input-group">
+            <label htmlFor="backup-export-passphrase">{t('settings.backup_passphrase')}</label>
+            <input
+              id="backup-export-passphrase"
+              name="backup-export-passphrase"
+              type="password"
+              className="input-text"
+              value={exportPassphrase}
+              onChange={(e) => setExportPassphrase(e.target.value)}
+              placeholder={t('settings.backup_passphrase_placeholder')}
+              autoComplete="new-password"
+              disabled={exporting}
+              required
+            />
+          </div>
+          <div className="input-group">
+            <label htmlFor="backup-export-confirm">{t('settings.backup_passphrase_confirm')}</label>
+            <input
+              id="backup-export-confirm"
+              name="backup-export-confirm"
+              type="password"
+              className="input-text"
+              value={exportConfirm}
+              onChange={(e) => setExportConfirm(e.target.value)}
+              autoComplete="new-password"
+              disabled={exporting}
+              required
+            />
+          </div>
+          <button
+            type="submit"
+            className="btn primary"
+            disabled={exporting || !exportPassphrase || !exportConfirm}
+          >
+            <Download size={16} />
+            {exporting ? t('settings.backup_exporting') : t('settings.backup_export_btn')}
+          </button>
+        </form>
      </section>

      <section className="backup-section backup-section--import" aria-labelledby="backup-import-heading">
@@ -252,58 +268,61 @@ export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBac
        </h4>
        <p className="text-muted backup-section-desc">{t('settings.backup_restore_desc')}</p>

-        <div className="input-group">
-          <label htmlFor="backup-import-file">{t('settings.backup_file_label')}</label>
-          <input
-            id="backup-import-file"
-            ref={fileInputRef}
-            type="file"
-            accept=".daagbok.json,application/json"
-            className="input-text"
-            onChange={handleFileChange}
-            disabled={importing}
-          />
-        </div>
+        <form onSubmit={handleImportSubmit} className="backup-import-form">
+          <div className="input-group">
+            <label htmlFor="backup-import-file">{t('settings.backup_file_label')}</label>
+            <input
+              id="backup-import-file"
+              ref={fileInputRef}
+              type="file"
+              accept=".daagbok.json,application/json"
+              className="input-text"
+              onChange={handleFileChange}
+              disabled={importing}
+            />
+          </div>

-        {importFile && (
-          <>
-            <div className="input-group">
-              <label htmlFor="backup-import-passphrase">{t('settings.backup_passphrase')}</label>
-              <input
-                id="backup-import-passphrase"
-                type="password"
-                className="input-text"
-                value={importPassphrase}
-                onChange={(e) => {
-                  setImportPassphrase(e.target.value)
-                  setImportPreview(null)
-                }}
-                autoComplete="current-password"
-                disabled={importing}
-              />
-            </div>
+          {importFile && (
+            <>
+              <div className="input-group">
+                <label htmlFor="backup-import-passphrase">{t('settings.backup_passphrase')}</label>
+                <input
+                  id="backup-import-passphrase"
+                  name="backup-import-passphrase"
+                  type="password"
+                  className="input-text"
+                  value={importPassphrase}
+                  onChange={(e) => {
+                    setImportPassphrase(e.target.value)
+                    setImportPreview(null)
+                  }}
+                  autoComplete="current-password"
+                  disabled={importing}
+                  required
+                />
+              </div>

-            <div className="backup-actions-row">
-              <button
-                type="button"
-                className="btn secondary"
-                onClick={handlePreviewImport}
-                disabled={previewing || importing || !importPassphrase}
-              >
-                {previewing ? t('settings.backup_previewing') : t('settings.backup_preview_btn')}
-              </button>
-              <button
-                type="button"
-                className="btn primary"
-                onClick={() => handleRestore()}
-                disabled={importing || !importPassphrase}
-              >
-                <Upload size={16} />
-                {importing ? t('settings.backup_restoring') : t('settings.backup_restore_btn')}
-              </button>
-            </div>
-          </>
-        )}
+              <div className="backup-actions-row">
+                <button
+                  type="button"
+                  className="btn secondary"
+                  onClick={handlePreviewImport}
+                  disabled={previewing || importing || !importPassphrase}
+                >
+                  {previewing ? t('settings.backup_previewing') : t('settings.backup_preview_btn')}
+                </button>
+                <button
+                  type="submit"
+                  className="btn primary"
+                  disabled={importing || !importPassphrase}
+                >
+                  <Upload size={16} />
+                  {importing ? t('settings.backup_restoring') : t('settings.backup_restore_btn')}
+                </button>
+              </div>
+            </>
+          )}
+        </form>

        {importPreview && (
          <div className="backup-preview glass">
@@ -316,7 +335,7 @@ export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBac
            </ul>
            <p className="text-muted backup-preview-date">
              {t('settings.backup_exported_at', {
-                date: new Date(importPreview.exportedAt).toLocaleString()
+                date: formatAppDateTime(importPreview.exportedAt, i18n.language)
              })}
            </p>
          </div>
@@ -1,13 +1,13 @@
-import React, { useState, useEffect } from 'react'
+import React, { useState, useEffect, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
 import { useLiveQuery } from 'dexie-react-hooks'
 import { db } from '../services/db.js'
-import { fetchLogbooks, createLogbook, deleteLogbook, type DecryptedLogbook } from '../services/logbook.js'
+import { fetchLogbooks, createLogbook, deleteLogbook, updateLogbookTitle, type DecryptedLogbook } from '../services/logbook.js'
 import LogbookRoleBadge from './LogbookRoleBadge.tsx'
+import BetaBadge from './BetaBadge.tsx'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import { logoutUser } from '../services/auth.js'
 import { useDialog } from './ModalDialog.tsx'
-import AccountDangerZone from './AccountDangerZone.tsx'
 import { BookOpen, Plus, Trash2, LogOut, Languages, RefreshCw, Ship, User, Wifi, WifiOff } from 'lucide-react'
 import DisclaimerHeaderButton from './DisclaimerHeaderButton.tsx'
 import FeedbackHeaderButton from './FeedbackHeaderButton.tsx'
@@ -15,13 +15,17 @@ import FeedbackHeaderButton from './FeedbackHeaderButton.tsx'
 interface LogbookDashboardProps {
  onSelectLogbook: (id: string, title: string) => void
  onLogout: () => void
+  onOpenProfile: () => void
 }

-export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookDashboardProps) {
+export default function LogbookDashboard({ onSelectLogbook, onLogout, onOpenProfile }: LogbookDashboardProps) {
  const { t, i18n } = useTranslation()
  const { showConfirm } = useDialog()
  const [logbooks, setLogbooks] = useState<DecryptedLogbook[]>([])
  const [newTitle, setNewTitle] = useState('')
+  const [editingLogbookId, setEditingLogbookId] = useState<string | null>(null)
+  const [editingTitleDraft, setEditingTitleDraft] = useState('')
+  const titleInputRef = useRef<HTMLInputElement>(null)
  const [loading, setLoading] = useState(false)
  const [refreshing, setRefreshing] = useState(false)
  const [error, setError] = useState<string | null>(null)
@@ -98,6 +102,49 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
    }
  }

+  useEffect(() => {
+    if (editingLogbookId) {
+      titleInputRef.current?.focus()
+      titleInputRef.current?.select()
+    }
+  }, [editingLogbookId])
+
+  const startTitleEdit = (lb: DecryptedLogbook, e: React.MouseEvent) => {
+    e.stopPropagation()
+    setEditingLogbookId(lb.id)
+    setEditingTitleDraft(lb.title)
+  }
+
+  const cancelTitleEdit = () => {
+    setEditingLogbookId(null)
+    setEditingTitleDraft('')
+  }
+
+  const commitTitleEdit = async (id: string) => {
+    if (editingLogbookId !== id) return
+
+    const lb = logbooks.find((item) => item.id === id)
+    const trimmedTitle = editingTitleDraft.trim()
+    cancelTitleEdit()
+
+    if (!lb || !trimmedTitle || trimmedTitle === lb.title.trim()) return
+
+    setLoading(true)
+    setError(null)
+    try {
+      await updateLogbookTitle(id, trimmedTitle)
+      setLogbooks((prev) =>
+        prev.map((item) =>
+          item.id === id ? { ...item, title: trimmedTitle, updatedAt: new Date().toISOString() } : item
+        )
+      )
+    } catch (err: any) {
+      setError(err.message || 'Failed to update logbook title')
+    } finally {
+      setLoading(false)
+    }
+  }
+
  const handleLogout = () => {
    void logoutUser()
    onLogout()
@@ -111,7 +158,10 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
  const ownedLogbooks = logbooks.filter((lb) => !lb.isShared)
  const sharedLogbooks = logbooks.filter((lb) => lb.isShared)

-  const renderLogbookCard = (lb: DecryptedLogbook) => (
+  const renderLogbookCard = (lb: DecryptedLogbook) => {
+    const isEditingTitle = editingLogbookId === lb.id
+
+    return (
    <div
      key={lb.id}
      className={`logbook-card glass${lb.isShared ? ' logbook-card--shared' : ''}`}
@@ -123,7 +173,36 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD

      <div className="card-info">
        <div className="card-title-row">
-          <h3>{lb.title}</h3>
+          {isEditingTitle ? (
+            <input
+              ref={titleInputRef}
+              type="text"
+              className="logbook-title-inline-edit input-text"
+              value={editingTitleDraft}
+              onChange={(e) => setEditingTitleDraft(e.target.value)}
+              onClick={(e) => e.stopPropagation()}
+              onKeyDown={(e) => {
+                if (e.key === 'Enter') {
+                  e.preventDefault()
+                  void commitTitleEdit(lb.id)
+                } else if (e.key === 'Escape') {
+                  e.preventDefault()
+                  cancelTitleEdit()
+                }
+              }}
+              onBlur={() => void commitTitleEdit(lb.id)}
+              disabled={loading}
+              aria-label={t('dashboard.edit_title')}
+            />
+          ) : (
+            <h3
+              className={lb.isShared ? undefined : 'logbook-title-editable'}
+              onClick={lb.isShared ? undefined : (e) => startTitleEdit(lb, e)}
+              title={lb.isShared ? undefined : t('dashboard.edit_title')}
+            >
+              {lb.title}
+            </h3>
+          )}
          <LogbookRoleBadge role={lb.accessRole} />
        </div>
        <div className="card-meta">
@@ -143,16 +222,22 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
        </div>
      </div>

-      <button
-        className="btn-delete"
-        onClick={(e) => handleDelete(lb.id, e)}
-        title={t('dashboard.delete_btn')}
-        style={{ visibility: lb.isShared ? 'hidden' : 'visible' }}
-      >
-        <Trash2 size={18} />
-      </button>
+      {!lb.isShared && (
+        <div className="logbook-card-actions">
+          <button
+            type="button"
+            className="btn-delete"
+            onClick={(e) => handleDelete(lb.id, e)}
+            title={t('dashboard.delete_btn')}
+            aria-label={t('dashboard.delete_btn')}
+          >
+            <Trash2 size={18} />
+          </button>
+        </div>
+      )}
    </div>
-  )
+    )
+  }

  const renderLogbookSection = (
    title: string,
@@ -177,7 +262,10 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
        <div className="header-brand">
          <Ship className="header-logo" size={32} />
          <div>
-            <h1>{t('app.name')}</h1>
+            <div className="header-brand-title-row">
+              <h1>{t('app.name')}</h1>
+              <BetaBadge />
+            </div>
            <p className="subtitle">{t('app.tagline')}</p>
          </div>
        </div>
@@ -206,14 +294,16 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
          </div>

          {/* Skipper profile */}
-          <div
-            className="skipper-badge"
-            title={t('dashboard.logged_in_as', { name: username })}
-            aria-label={t('dashboard.logged_in_as', { name: username })}
+          <button
+            type="button"
+            className="btn-icon skipper-badge"
+            onClick={onOpenProfile}
+            title={t('dashboard.open_profile', { name: username })}
+            aria-label={t('dashboard.open_profile', { name: username })}
          >
-            <User size={16} aria-hidden="true" />
+            <User size={18} aria-hidden="true" />
            <span className="skipper-badge__name">{username}</span>
-          </div>
+          </button>

          {/* Lang toggle */}
          <button className="btn-icon" onClick={toggleLanguage} title="Switch Language">
@@ -285,10 +375,6 @@ export default function LogbookDashboard({ onSelectLogbook, onLogout }: LogbookD
          )}
        </section>
      </main>
-
-      <section className="dashboard-account-section" aria-label={t('settings.danger_zone_title')}>
-        <AccountDangerZone />
-      </section>
    </div>
  )
 }
@@ -2,6 +2,7 @@ import { useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { Fingerprint, Loader2, AlertTriangle } from 'lucide-react'
 import type { PasskeySignature } from '../types/signatures.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'

 interface PasskeySignButtonProps {
  label: string
@@ -42,9 +43,7 @@ export default function PasskeySignButton({
    }
  }

-  const formattedDate = signature
-    ? new Date(signature.signedAt).toLocaleString(i18n.language === 'de' ? 'de-DE' : 'en-GB')
-    : ''
+  const formattedDate = signature ? formatAppDateTime(signature.signedAt, i18n.language) : ''

  return (
    <div className="passkey-sign-block">
@@ -233,7 +233,6 @@ export default function PhotoCapture({ entryId, logbookId, readOnly = false, pre
            <input
              type="file"
              accept="image/*"
-              capture="environment"
              ref={fileInputRef}
              onChange={handleFileChange}
              style={{ display: 'none' }}
@@ -1,6 +1,7 @@
 import { useState, useEffect } from 'react'
 import { useTranslation } from 'react-i18next'
 import { decryptJson } from '../services/crypto.js'
+import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
 import VesselForm from './VesselForm.tsx'
 import CrewForm from './CrewForm.tsx'
 import LogEntriesList from './LogEntriesList.tsx'
@@ -124,6 +125,7 @@ export default function ReadOnlyViewer({ token, hexKey }: ReadOnlyViewerProps) {
        }
      }
      setGpsTracks(decGpsTracks)
+      trackPlausibleEvent(PlausibleEvents.PUBLIC_LINK_OPENED)

    } catch (err: any) {
      console.error(err)
@@ -3,7 +3,6 @@ import { useTranslation } from 'react-i18next'
 import { Settings as SettingsIcon, Save, Check, Users, Trash2, Copy, Link as LinkIcon, Compass } from 'lucide-react'
 import { ensureLogbookKey } from '../services/logbookKeys.js'
 import LogbookBackupPanel from './LogbookBackupPanel.tsx'
-import AccountDangerZone from './AccountDangerZone.tsx'
 import PwaInstallPrompt from './PwaInstallPrompt.tsx'
 import PushNotificationSettings from './PushNotificationSettings.tsx'
 import { useDialog } from './ModalDialog.tsx'
@@ -111,6 +110,7 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
          const logbookKey = await ensureLogbookKey(logbookId)
          const hexKey = bufferToHex(logbookKey)
          setShareLink(`${window.location.origin}/share?token=${data.token}#key=${hexKey}`)
+          trackPlausibleEvent(PlausibleEvents.LOGBOOK_SHARED)
          showAlert('Public share link enabled!')
        } else {
          setShareEnabled(false)
@@ -292,12 +292,14 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
            </label>
            <input
              id="owm-api-key"
+              name="owm-api-key"
              type="password"
              className="input-text"
              placeholder="e.g. 8b6a7f...d8"
              value={apiKey}
              onChange={(e) => setApiKey(e.target.value)}
              disabled={saving}
+              autoComplete="off"
            />
          </div>
        </div>
@@ -398,6 +400,10 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
            {t('settings.share_desc')}
          </p>

+          <p className="signature-lock-notice" style={{ marginBottom: '16px' }}>
+            {t('settings.share_privacy_warning')}
+          </p>
+
          <div style={{ display: 'flex', alignItems: 'center', gap: '10px', marginBottom: '20px' }}>
            <label className="switch-label" style={{ display: 'flex', alignItems: 'center', gap: '10px', cursor: 'pointer', fontSize: '14px', color: '#f1f5f9' }}>
              <input
@@ -413,7 +419,7 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
          </div>

          {shareEnabled && shareLink && (
-            <div className="input-group mb-4" style={{ display: 'flex', gap: '8px', alignItems: 'center' }}>
+            <div className="input-group mb-4 copy-link-row">
              <input
                type="text"
                readOnly
@@ -454,7 +460,7 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
            {t('logs.invite_link_desc')}
          </p>

-          <div className="form-actions" style={{ justifyContent: 'flex-start', gap: '12px', marginBottom: '20px' }}>
+          <div className="form-actions form-actions--start" style={{ gap: '12px', marginBottom: '20px' }}>
            <button
              type="button"
              className="btn primary"
@@ -468,7 +474,7 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
          </div>

          {inviteLink && (
-            <div className="input-group mb-6" style={{ display: 'flex', gap: '8px', alignItems: 'center' }}>
+            <div className="input-group mb-6 copy-link-row">
              <input
                type="text"
                readOnly
@@ -534,8 +540,6 @@ export default function SettingsForm({ logbookId, onLogbookRestored }: SettingsF
          )}
        </div>
      )}
-      {/* Danger Zone / Account Deletion */}
-      <AccountDangerZone className="mt-6" />
    </div>
  )
 }
@@ -4,7 +4,8 @@ import { Check } from 'lucide-react'
 import SignaturePad from './SignaturePad.tsx'
 import PasskeySignButton from './PasskeySignButton.tsx'
 import type { PasskeySignature, SignatureValue } from '../types/signatures.js'
-import { isPasskeySignature } from '../utils/signatures.js'
+import { isPasskeySignature, getSignaturePayload, getSignatureAttribution } from '../utils/signatures.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'

 type SignatureMode = 'passkey' | 'classic'

@@ -13,7 +14,7 @@ interface SignatureSectionProps {
  disabled?: boolean
  isOnline: boolean
  canSignSkipper: boolean
-  hasWriteCollaborators: boolean
+  canSignCrew: boolean
  signSkipper: SignatureValue | ''
  signCrew: SignatureValue | ''
  skipperSignatureValid: boolean
@@ -25,14 +26,28 @@ interface SignatureSectionProps {
  onBeforeSign?: () => Promise<boolean>
 }

+function SignerAttributionBadge({ value }: { value: SignatureValue | '' }) {
+  const { t, i18n } = useTranslation()
+  const attribution = getSignatureAttribution(value)
+  if (!attribution) return null
+
+  const formattedDate = formatAppDateTime(attribution.signedAt, i18n.language)
+
+  return (
+    <div className="passkey-sign-badge valid signature-attribution-badge">
+      <span>{t('logs.sign_passkey_signed', { username: attribution.username })}</span>
+      <span className="passkey-sign-date">{formattedDate}</span>
+    </div>
+  )
+}
+
 function padValue(value: SignatureValue | ''): string {
-  if (!value || isPasskeySignature(value)) return ''
-  return value
+  return getSignaturePayload(value)
 }

 function modeFromValue(value: SignatureValue | '', passkeyAvailable: boolean): SignatureMode {
  if (isPasskeySignature(value)) return 'passkey'
-  if (value) return 'classic'
+  if (getSignaturePayload(value)) return 'classic'
  return passkeyAvailable ? 'passkey' : 'classic'
 }

@@ -108,6 +123,7 @@ function RoleSignatureBlock({
    }
    return (
      <div className="signature-role-block">
+        <SignerAttributionBadge value={value} />
        <SignaturePad
          id={padId}
          label={roleLabel}
@@ -162,6 +178,7 @@ function RoleSignatureBlock({

      {showClassicPanel && (
        <>
+          <SignerAttributionBadge value={value} />
          <SignaturePad
            id={padId}
            label={roleLabel}
@@ -189,7 +206,7 @@ export default function SignatureSection({
  disabled = false,
  isOnline,
  canSignSkipper,
-  hasWriteCollaborators,
+  canSignCrew,
  signSkipper,
  signCrew,
  skipperSignatureValid,
@@ -203,7 +220,7 @@ export default function SignatureSection({
  const { t } = useTranslation()

  const showSkipperPasskey = canSignSkipper && isOnline
-  const showCrewPasskey = hasWriteCollaborators && isOnline
+  const showCrewPasskey = canSignCrew && isOnline
  const hasSignature = !!(signSkipper || signCrew)

  return (
@@ -228,7 +245,7 @@ export default function SignatureSection({
          passkeySignature={isPasskeySignature(signSkipper) ? signSkipper : undefined}
          signatureValid={skipperSignatureValid}
          showPasskey={showSkipperPasskey}
-          readOnly={readOnly}
+          readOnly={readOnly || !canSignSkipper}
          disabled={disabled}
          classicHint={showSkipperPasskey ? t('logs.sign_classic_or_passkey') : undefined}
          offlineHint={!isOnline && canSignSkipper ? t('logs.sign_offline_hint') : undefined}
@@ -245,7 +262,7 @@ export default function SignatureSection({
          passkeySignature={isPasskeySignature(signCrew) ? signCrew : undefined}
          signatureValid={crewSignatureValid}
          showPasskey={showCrewPasskey}
-          readOnly={readOnly}
+          readOnly={readOnly || !canSignCrew}
          disabled={disabled}
          classicHint={showCrewPasskey ? t('logs.sign_crew_passkey_hint') : undefined}
          onChange={onSignCrewChange}
@@ -1,9 +1,10 @@
 import { useCallback, useEffect, useMemo, useState, type ReactNode } from 'react'
 import { useTranslation } from 'react-i18next'
-import { BarChart2, Anchor, Droplets, Fuel, Sailboat, Gauge } from 'lucide-react'
+import { BarChart2, Anchor, Droplets, Fuel, Sailboat, Gauge, Timer } from 'lucide-react'
 import MultiTrackMap from './MultiTrackMap.tsx'
 import {
  formatLiters,
+  formatHours,
  formatNm,
  loadAccountStats,
  loadLogbookStats,
@@ -12,6 +13,7 @@ import {
  type TravelDayStats
 } from '../services/statsAggregation.js'
 import { compareTravelDaysChronological } from '../utils/logEntryTankLevels.js'
+import { formatFuelPerMotorHour } from '../utils/fuelStats.js'

 interface StatsDashboardProps {
  logbookId: string
@@ -78,12 +80,26 @@ function TotalsGrid({ totals }: { totals: StatsTotals }) {
        value={formatNm(totals.motorDistanceNm)}
        unit={t('stats.unit_nm')}
      />
+      <KpiCard
+        icon={<Timer size={20} />}
+        label={t('stats.motor_hours_total')}
+        value={formatHours(totals.totalMotorHours)}
+        unit={t('stats.unit_h')}
+      />
      <KpiCard
        icon={<Fuel size={20} />}
        label={t('stats.fuel_total')}
        value={formatLiters(totals.totalFuelL)}
        unit={t('stats.unit_l')}
      />
+      {totals.fuelPerMotorHourL != null && (
+        <KpiCard
+          icon={<Timer size={20} />}
+          label={t('stats.fuel_per_motor_hour')}
+          value={formatFuelPerMotorHour(totals.fuelPerMotorHourL)}
+          unit={`${t('stats.unit_l')}/${t('stats.unit_h')}`}
+        />
+      )}
      <KpiCard
        icon={<Droplets size={20} />}
        label={t('stats.water_total')}
@@ -247,6 +263,36 @@ function LogbookScopeView({ summary }: { summary: LogbookStatsSummary }) {
        />
      </div>

+      <div className="member-editor-card glass mt-6">
+        <h3 className="stats-section-title">{t('stats.daily_motor_hours')}</h3>
+        <p className="stats-section-sub">
+          {t('stats.avg_motor_hours')}: {formatHours(totals.avgMotorHoursPerDay)} {t('stats.unit_h')}
+          {totals.fuelPerMotorHourL != null && (
+            <>
+              {' · '}
+              {t('stats.fuel_per_motor_hour')}: {formatFuelPerMotorHour(totals.fuelPerMotorHourL)} {t('stats.unit_l')}/{t('stats.unit_h')}
+            </>
+          )}
+        </p>
+        <DailyBarChart
+          days={travelDays}
+          valueFn={(d) => d.motorHours}
+          barClass="stats-bar--motor-hours"
+          formatValue={formatHours}
+        />
+        {travelDays.some((d) => d.fuelPerMotorHourL != null) && (
+          <>
+            <h4 className="stats-section-subtitle mt-4">{t('stats.daily_fuel_per_motor_hour')}</h4>
+            <DailyBarChart
+              days={travelDays}
+              valueFn={(d) => d.fuelPerMotorHourL ?? 0}
+              barClass="stats-bar--fuel-per-hour"
+              formatValue={(v) => formatFuelPerMotorHour(v > 0 ? v : null)}
+            />
+          </>
+        )}
+      </div>
+
      <div className="member-editor-card glass mt-6">
        <h3 className="stats-section-title">{t('stats.daily_consumption')}</h3>
        <p className="stats-section-sub">
@@ -256,6 +302,9 @@ function LogbookScopeView({ summary }: { summary: LogbookStatsSummary }) {
          {totals.fuelPerNmL != null && (
            <> · {t('stats.fuel_per_nm')}: {totals.fuelPerNmL} {t('stats.unit_l')}/{t('stats.unit_nm')}</>
          )}
+          {totals.fuelPerMotorHourL != null && (
+            <> · {t('stats.fuel_per_motor_hour')}: {formatFuelPerMotorHour(totals.fuelPerMotorHourL)} {t('stats.unit_l')}/{t('stats.unit_h')}</>
+          )}
        </p>
        <ConsumptionChart days={travelDays} />
      </div>
@@ -367,6 +416,7 @@ export default function StatsDashboard({ logbookId, logbookTitle }: StatsDashboa
                        <th>{t('stats.travel_days')}</th>
                        <th>{t('stats.total_distance')}</th>
                        <th>{t('stats.fuel_total')}</th>
+                        <th>{t('stats.motor_hours_total')}</th>
                        <th>{t('stats.water_total')}</th>
                      </tr>
                    </thead>
@@ -377,6 +427,7 @@ export default function StatsDashboard({ logbookId, logbookTitle }: StatsDashboa
                          <td>{lb.totals.travelDayCount}</td>
                          <td>{formatNm(lb.totals.totalDistanceNm)} {t('stats.unit_nm')}</td>
                          <td>{formatLiters(lb.totals.totalFuelL)} {t('stats.unit_l')}</td>
+                          <td>{formatHours(lb.totals.totalMotorHours)} {t('stats.unit_h')}</td>
                          <td>{formatLiters(lb.totals.totalFreshwaterL)} {t('stats.unit_l')}</td>
                        </tr>
                      ))}
@@ -397,8 +448,39 @@ export default function StatsDashboard({ logbookId, logbookTitle }: StatsDashboa
                    />
                  </div>

+                  <div className="member-editor-card glass mt-6">
+                    <h3 className="stats-section-title">{t('stats.daily_motor_hours')}</h3>
+                    {accountStats.totals.fuelPerMotorHourL != null && (
+                      <p className="stats-section-sub">
+                        {t('stats.fuel_per_motor_hour')}: {formatFuelPerMotorHour(accountStats.totals.fuelPerMotorHourL)} {t('stats.unit_l')}/{t('stats.unit_h')}
+                      </p>
+                    )}
+                    <DailyBarChart
+                      days={allAccountDays}
+                      valueFn={(d) => d.motorHours}
+                      barClass="stats-bar--motor-hours"
+                      formatValue={formatHours}
+                    />
+                    {allAccountDays.some((d) => d.fuelPerMotorHourL != null) && (
+                      <>
+                        <h4 className="stats-section-subtitle mt-4">{t('stats.daily_fuel_per_motor_hour')}</h4>
+                        <DailyBarChart
+                          days={allAccountDays}
+                          valueFn={(d) => d.fuelPerMotorHourL ?? 0}
+                          barClass="stats-bar--fuel-per-hour"
+                          formatValue={(v) => formatFuelPerMotorHour(v > 0 ? v : null)}
+                        />
+                      </>
+                    )}
+                  </div>
+
                  <div className="member-editor-card glass mt-6">
                    <h3 className="stats-section-title">{t('stats.daily_consumption')}</h3>
+                    {accountStats.totals.fuelPerMotorHourL != null && (
+                      <p className="stats-section-sub">
+                        {t('stats.fuel_per_motor_hour')}: {formatFuelPerMotorHour(accountStats.totals.fuelPerMotorHourL)} {t('stats.unit_l')}/{t('stats.unit_h')}
+                      </p>
+                    )}
                    <ConsumptionChart days={allAccountDays} />
                  </div>

@@ -0,0 +1,782 @@
+import { useCallback, useEffect, useMemo, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import { useLiveQuery } from 'dexie-react-hooks'
+import {
+  User,
+  ChevronLeft,
+  LogOut,
+  KeyRound,
+  Copy,
+  Check,
+  Plus,
+  Trash2,
+  BookOpen,
+  Anchor,
+  Gauge,
+  Sailboat,
+  Timer,
+  Share2,
+  Calendar,
+  Lock,
+  BarChart2,
+  Shield,
+  Smartphone,
+  RefreshCw,
+  Wifi,
+  WifiOff,
+  CircleCheck,
+  CircleAlert
+} from 'lucide-react'
+import AccountDangerZone from './AccountDangerZone.tsx'
+import BetaBadge from './BetaBadge.tsx'
+import { useDialog } from './ModalDialog.tsx'
+import {
+  addPasskey,
+  fetchUserProfile,
+  forgetUsername,
+  getActiveMasterKey,
+  getKnownUsernames,
+  hasLocalPin,
+  removeLocalPin,
+  removePasskey,
+  renamePasskey,
+  rotateRecoveryPhrase,
+  setLocalPin,
+  type UserProfile
+} from '../services/auth.js'
+import {
+  formatHours,
+  formatNm,
+  loadAccountStats,
+  type AccountStatsSummary
+} from '../services/statsAggregation.js'
+import { db } from '../services/db.js'
+import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
+
+interface UserProfilePageProps {
+  onBack: () => void
+  onLogout: () => void
+}
+
+function formatAccountAge(createdAt: string, locale: string): string {
+  const created = new Date(createdAt)
+  if (Number.isNaN(created.getTime())) return createdAt
+  return created.toLocaleDateString(locale, {
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric'
+  })
+}
+
+function KpiCard({
+  icon,
+  label,
+  value,
+  unit
+}: {
+  icon: React.ReactNode
+  label: string
+  value: string
+  unit?: string
+}) {
+  return (
+    <div className="stats-kpi-card glass">
+      <div className="stats-kpi-icon">{icon}</div>
+      <div className="stats-kpi-body">
+        <span className="stats-kpi-label">{label}</span>
+        <span className="stats-kpi-value">
+          {value}
+          {unit ? <span className="stats-kpi-unit">{unit}</span> : null}
+        </span>
+      </div>
+    </div>
+  )
+}
+
+function SecurityCheckItem({ ok, label }: { ok: boolean; label: string }) {
+  return (
+    <li className={`profile-security-item ${ok ? 'profile-security-item--ok' : 'profile-security-item--warn'}`}>
+      {ok ? <CircleCheck size={18} aria-hidden="true" /> : <CircleAlert size={18} aria-hidden="true" />}
+      <span>{label}</span>
+    </li>
+  )
+}
+
+export default function UserProfilePage({ onBack, onLogout }: UserProfilePageProps) {
+  const { t, i18n } = useTranslation()
+  const { showConfirm, showAlert } = useDialog()
+  const username = localStorage.getItem('active_username') || 'Skipper'
+
+  const [profile, setProfile] = useState<UserProfile | null>(null)
+  const [accountStats, setAccountStats] = useState<AccountStatsSummary | null>(null)
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+  const [copiedUserId, setCopiedUserId] = useState(false)
+  const [passkeyBusy, setPasskeyBusy] = useState(false)
+  const [pinBusy, setPinBusy] = useState(false)
+  const [pinInput, setPinInput] = useState('')
+  const [pinConfirm, setPinConfirm] = useState('')
+  const [pinActive, setPinActive] = useState(() => hasLocalPin(username))
+  const [newPasskeyLabel, setNewPasskeyLabel] = useState('')
+  const [passkeyLabels, setPasskeyLabels] = useState<Record<string, string>>({})
+  const [online, setOnline] = useState(navigator.onLine)
+  const [isKnownDevice, setIsKnownDevice] = useState(() =>
+    getKnownUsernames().some((u) => u.toLowerCase() === username.toLowerCase())
+  )
+  const [recoveryBusy, setRecoveryBusy] = useState(false)
+  const [pendingRecoveryPhrase, setPendingRecoveryPhrase] = useState<string | null>(null)
+  const [recoveryCopied, setRecoveryCopied] = useState(false)
+
+  const pendingSyncCount = useLiveQuery(() => db.syncQueue.count()) ?? 0
+
+  const sharedLogbookCount = useLiveQuery(
+    () => db.logbooks.filter((lb) => lb.isShared === 1).count(),
+    []
+  ) ?? 0
+
+  const loadData = useCallback(async () => {
+    setLoading(true)
+    setError(null)
+    try {
+      const profileData = await fetchUserProfile()
+      setProfile(profileData)
+
+      try {
+        const stats = await loadAccountStats(false)
+        setAccountStats(stats)
+      } catch (statsErr) {
+        console.error('Failed to load account stats for profile:', statsErr)
+        setAccountStats(null)
+      }
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : t('profile.load_error'))
+    } finally {
+      setLoading(false)
+    }
+  }, [t])
+
+  useEffect(() => {
+    void loadData()
+  }, [loadData])
+
+  useEffect(() => {
+    trackPlausibleEvent(PlausibleEvents.PROFILE_OPENED)
+  }, [])
+
+  useEffect(() => {
+    const handleOnline = () => setOnline(true)
+    const handleOffline = () => setOnline(false)
+    window.addEventListener('online', handleOnline)
+    window.addEventListener('offline', handleOffline)
+    return () => {
+      window.removeEventListener('online', handleOnline)
+      window.removeEventListener('offline', handleOffline)
+    }
+  }, [])
+
+  useEffect(() => {
+    if (!profile) return
+    const labels: Record<string, string> = {}
+    for (const cred of profile.credentials) {
+      labels[cred.id] = cred.label ?? ''
+    }
+    setPasskeyLabels(labels)
+  }, [profile])
+
+  const statsTotals = accountStats?.totals
+  const logbookCount =
+    accountStats?.logbooks.length ?? profile?.serverMeta.ownedLogbookCount ?? 0
+
+  const accountAgeLabel = useMemo(() => {
+    if (!profile?.createdAt) return '—'
+    return formatAccountAge(profile.createdAt, i18n.language)
+  }, [profile?.createdAt, i18n.language])
+
+  const handleCopyUserId = async () => {
+    if (!profile?.userId) return
+    try {
+      await navigator.clipboard.writeText(profile.userId)
+      setCopiedUserId(true)
+      window.setTimeout(() => setCopiedUserId(false), 2000)
+    } catch {
+      showAlert(t('profile.copy_failed'))
+    }
+  }
+
+  const handleAddPasskey = async () => {
+    setPasskeyBusy(true)
+    setError(null)
+    try {
+      const hadLabel = Boolean(newPasskeyLabel.trim())
+      await addPasskey(newPasskeyLabel)
+      setNewPasskeyLabel('')
+      await loadData()
+      trackPlausibleEvent(PlausibleEvents.PASSKEY_ADDED, { labeled: hadLabel })
+      showAlert(t('profile.add_passkey_success'))
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : t('profile.add_passkey_failed'))
+    } finally {
+      setPasskeyBusy(false)
+    }
+  }
+
+  const handleRenamePasskey = async (credentialId: string) => {
+    setPasskeyBusy(true)
+    setError(null)
+    try {
+      await renamePasskey(credentialId, passkeyLabels[credentialId] ?? '')
+      await loadData()
+      trackPlausibleEvent(PlausibleEvents.PASSKEY_RENAMED)
+      showAlert(t('profile.passkey_rename_success'))
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : t('profile.passkey_rename_failed'))
+    } finally {
+      setPasskeyBusy(false)
+    }
+  }
+
+  const handleForgetDevice = async () => {
+    const confirmed = await showConfirm(
+      t('profile.device_forget_confirm_desc'),
+      t('profile.device_forget_confirm_title'),
+      t('profile.device_forget_confirm_yes'),
+      t('profile.device_forget_confirm_no')
+    )
+    if (!confirmed) return
+
+    forgetUsername(username)
+    setIsKnownDevice(false)
+    trackPlausibleEvent(PlausibleEvents.DEVICE_FORGOTTEN)
+  }
+
+  const handleRemovePasskey = async (credentialId: string) => {
+    if (profile && profile.credentials.length <= 1) {
+      trackPlausibleEvent(PlausibleEvents.LAST_PASSKEY_REMOVE_HINTED)
+      await showAlert(
+        t('profile.remove_passkey_last_desc'),
+        t('profile.remove_passkey_last_title')
+      )
+      return
+    }
+
+    const confirmed = await showConfirm(
+      t('profile.remove_passkey_confirm_desc'),
+      t('profile.remove_passkey_confirm_title'),
+      t('profile.remove_passkey_confirm_yes'),
+      t('profile.remove_passkey_confirm_no')
+    )
+    if (!confirmed) return
+
+    setPasskeyBusy(true)
+    setError(null)
+    try {
+      await removePasskey(credentialId)
+      await loadData()
+      trackPlausibleEvent(PlausibleEvents.PASSKEY_REMOVED)
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : t('profile.remove_passkey_failed'))
+    } finally {
+      setPasskeyBusy(false)
+    }
+  }
+
+  const handleSavePin = async (e: React.FormEvent) => {
+    e.preventDefault()
+    if (pinInput.length < 4) {
+      setError(t('profile.pin_length_error'))
+      return
+    }
+    if (pinInput !== pinConfirm) {
+      setError(t('profile.pin_mismatch'))
+      return
+    }
+
+    const masterKey = getActiveMasterKey()
+    if (!masterKey) {
+      setError(t('profile.pin_no_session'))
+      return
+    }
+
+    const pinAction = pinActive ? 'change' : 'set'
+
+    setPinBusy(true)
+    setError(null)
+    try {
+      await setLocalPin(pinInput.trim(), username, masterKey)
+      setPinActive(true)
+      setPinInput('')
+      setPinConfirm('')
+      trackPlausibleEvent(PlausibleEvents.LOCAL_PIN_SET, { action: pinAction })
+      showAlert(t('profile.pin_saved'))
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : t('profile.pin_save_failed'))
+    } finally {
+      setPinBusy(false)
+    }
+  }
+
+  const handleRemovePin = async () => {
+    const confirmed = await showConfirm(
+      t('profile.remove_pin_confirm_desc'),
+      t('profile.remove_pin_confirm_title'),
+      t('profile.remove_pin_confirm_yes'),
+      t('profile.remove_pin_confirm_no')
+    )
+    if (!confirmed) return
+
+    removeLocalPin(username)
+    setPinActive(false)
+    setPinInput('')
+    setPinConfirm('')
+    trackPlausibleEvent(PlausibleEvents.LOCAL_PIN_REMOVED)
+  }
+
+  const handleRotateRecovery = async () => {
+    const confirmed = await showConfirm(
+      t('profile.recovery_rotate_confirm_desc'),
+      t('profile.recovery_rotate_confirm_title'),
+      t('profile.recovery_rotate_confirm_yes'),
+      t('profile.recovery_rotate_confirm_no')
+    )
+    if (!confirmed) return
+
+    if (!getActiveMasterKey()) {
+      setError(t('profile.recovery_rotate_no_session'))
+      return
+    }
+
+    setRecoveryBusy(true)
+    setError(null)
+    try {
+      const phrase = await rotateRecoveryPhrase()
+      setPendingRecoveryPhrase(phrase)
+      trackPlausibleEvent(PlausibleEvents.RECOVERY_ROTATED)
+    } catch (err: unknown) {
+      if (err instanceof Error && err.message === 'NO_ACTIVE_MASTER_KEY') {
+        setError(t('profile.recovery_rotate_no_session'))
+      } else {
+        setError(err instanceof Error ? err.message : t('profile.recovery_rotate_failed'))
+      }
+    } finally {
+      setRecoveryBusy(false)
+    }
+  }
+
+  const handleCopyRecoveryPhrase = async () => {
+    if (!pendingRecoveryPhrase) return
+    try {
+      await navigator.clipboard.writeText(pendingRecoveryPhrase)
+      setRecoveryCopied(true)
+      window.setTimeout(() => setRecoveryCopied(false), 2000)
+    } catch {
+      showAlert(t('profile.copy_failed'))
+    }
+  }
+
+  const handleConfirmRecoverySaved = () => {
+    setPendingRecoveryPhrase(null)
+    setRecoveryCopied(false)
+  }
+
+  return (
+    <div className="dashboard-container">
+      <header className="dashboard-header dashboard-header--profile">
+        <div className="header-brand profile-header-brand">
+          <button className="btn-back profile-back-btn" onClick={onBack} title={t('profile.back')}>
+            <ChevronLeft size={16} />
+            <span>{t('profile.back')}</span>
+          </button>
+          <div>
+            <div className="header-brand-title-row">
+              <h1>{t('profile.title')}</h1>
+              <BetaBadge />
+            </div>
+            <p className="subtitle">{t('profile.subtitle', { name: username })}</p>
+          </div>
+        </div>
+
+        <div className="header-actions">
+          <button className="btn-icon logout" onClick={onLogout} title={t('dashboard.logout')}>
+            <LogOut size={18} />
+          </button>
+        </div>
+      </header>
+
+      <main className="profile-main">
+        {error && <div className="auth-error mb-4">{error}</div>}
+
+        {loading ? (
+          <div className="tab-placeholder">
+            <User className="header-logo spin" size={48} />
+            <p>{t('profile.loading')}</p>
+          </div>
+        ) : pendingRecoveryPhrase ? (
+          <section className="form-card profile-recovery-card">
+            <div className="form-header">
+              <KeyRound size={24} className="form-icon" />
+              <h2>{t('auth.recovery_title')}</h2>
+            </div>
+            <p className="profile-recovery-warning">{t('profile.recovery_rotate_new_warning')}</p>
+            <div className="phrase-grid">
+              {pendingRecoveryPhrase.split(' ').map((word, idx) => (
+                <div key={idx} className="phrase-word">
+                  <span className="word-num">{idx + 1}</span>
+                  {word}
+                </div>
+              ))}
+            </div>
+            <div className="form-actions profile-recovery-actions">
+              <button type="button" className="btn secondary" onClick={() => void handleCopyRecoveryPhrase()}>
+                {recoveryCopied ? t('auth.copied') : t('auth.copy_phrase')}
+              </button>
+              <button type="button" className="btn primary" onClick={handleConfirmRecoverySaved}>
+                {t('auth.confirm_recovery')}
+              </button>
+            </div>
+          </section>
+        ) : profile ? (
+          <>
+            <section className="form-card">
+              <div className="form-header">
+                <User size={24} className="form-icon" />
+                <h2>{t('profile.identity_title')}</h2>
+              </div>
+
+              <dl className="profile-dl">
+                <div className="profile-dl-row">
+                  <dt>{t('profile.username')}</dt>
+                  <dd>{profile.username}</dd>
+                </div>
+                <div className="profile-dl-row">
+                  <dt>{t('profile.user_id')}</dt>
+                  <dd className="profile-user-id">
+                    <code>{profile.userId}</code>
+                    <button
+                      type="button"
+                      className="btn-icon profile-copy-btn"
+                      onClick={() => void handleCopyUserId()}
+                      title={t('profile.copy_user_id')}
+                    >
+                      {copiedUserId ? <Check size={16} /> : <Copy size={16} />}
+                    </button>
+                  </dd>
+                </div>
+                <div className="profile-dl-row">
+                  <dt>{t('profile.account_since')}</dt>
+                  <dd>{accountAgeLabel}</dd>
+                </div>
+                <div className="profile-dl-row">
+                  <dt>{t('profile.prf_status')}</dt>
+                  <dd>
+                    {profile.hasPrfEncryption
+                      ? t('profile.prf_active')
+                      : t('profile.prf_inactive')}
+                  </dd>
+                </div>
+              </dl>
+            </section>
+
+            <section className="member-editor-card glass">
+              <div className="profile-section-header">
+                <Shield size={20} />
+                <h3>{t('profile.security_title')}</h3>
+              </div>
+              <p className="profile-section-desc">{t('profile.security_desc')}</p>
+              <ul className="profile-security-list">
+                <SecurityCheckItem
+                  ok={profile.credentials.length > 0}
+                  label={
+                    profile.credentials.length > 0
+                      ? t('profile.security_passkeys_ok')
+                      : t('profile.security_passkeys_missing')
+                  }
+                />
+                <SecurityCheckItem
+                  ok={profile.hasPrfEncryption}
+                  label={
+                    profile.hasPrfEncryption
+                      ? t('profile.security_prf_ok')
+                      : t('profile.security_prf_missing')
+                  }
+                />
+                <SecurityCheckItem
+                  ok={pinActive}
+                  label={pinActive ? t('profile.security_pin_ok') : t('profile.security_pin_missing')}
+                />
+                <SecurityCheckItem ok label={t('profile.security_recovery_ok')} />
+              </ul>
+              <p className="profile-section-desc profile-recovery-hint">{t('profile.security_recovery_hint')}</p>
+              <div className="form-actions profile-recovery-actions">
+                <button
+                  type="button"
+                  className="btn secondary"
+                  onClick={() => void handleRotateRecovery()}
+                  disabled={recoveryBusy || passkeyBusy || pinBusy}
+                >
+                  {recoveryBusy ? t('profile.processing') : t('profile.recovery_rotate_btn')}
+                </button>
+              </div>
+            </section>
+
+            <section className="member-editor-card glass">
+              <div className="profile-section-header">
+                <Smartphone size={20} />
+                <h3>{t('profile.device_title')}</h3>
+              </div>
+              <p className="profile-section-desc">{t('profile.device_desc')}</p>
+              <div className={`profile-device-status conn-status ${online ? (pendingSyncCount > 0 ? 'warning' : 'online') : 'offline'}`}>
+                {online ? (
+                  pendingSyncCount > 0 ? (
+                    <>
+                      <RefreshCw size={16} className="spin" aria-hidden="true" />
+                      <span>{t('profile.device_sync_pending', { count: pendingSyncCount })}</span>
+                    </>
+                  ) : (
+                    <>
+                      <Wifi size={16} aria-hidden="true" />
+                      <span>{t('profile.device_sync_ok')}</span>
+                    </>
+                  )
+                ) : (
+                  <>
+                    <WifiOff size={16} aria-hidden="true" />
+                    <span>{t('sync.status_offline')}</span>
+                  </>
+                )}
+              </div>
+              <p className="profile-pin-status">
+                {isKnownDevice ? t('profile.device_remembered') : t('profile.device_not_remembered')}
+              </p>
+              {isKnownDevice && (
+                <div className="form-actions">
+                  <button
+                    type="button"
+                    className="btn secondary"
+                    onClick={() => void handleForgetDevice()}
+                  >
+                    {t('profile.device_forget_btn')}
+                  </button>
+                </div>
+              )}
+            </section>
+
+            <section className="member-editor-card glass">
+              <div className="profile-section-header">
+                <Lock size={20} />
+                <h3>{t('profile.pin_title')}</h3>
+              </div>
+              <p className="profile-section-desc">{t('auth.setup_pin_warning')}</p>
+              <p className="profile-pin-status">
+                {t('profile.pin_status')}:{' '}
+                <strong>{pinActive ? t('profile.pin_active') : t('profile.pin_inactive')}</strong>
+              </p>
+
+              <form onSubmit={(e) => void handleSavePin(e)} className="profile-pin-form">
+                <div className="input-group">
+                  <label htmlFor="profile-pin">{t('auth.pin_label')}</label>
+                  <input
+                    id="profile-pin"
+                    type="password"
+                    inputMode="numeric"
+                    autoComplete="new-password"
+                    className="input-text"
+                    placeholder={t('auth.pin_placeholder')}
+                    value={pinInput}
+                    onChange={(e) => setPinInput(e.target.value)}
+                    disabled={pinBusy}
+                  />
+                </div>
+                <div className="input-group">
+                  <label htmlFor="profile-pin-confirm">{t('profile.pin_confirm_label')}</label>
+                  <input
+                    id="profile-pin-confirm"
+                    type="password"
+                    inputMode="numeric"
+                    autoComplete="new-password"
+                    className="input-text"
+                    placeholder={t('profile.pin_confirm_placeholder')}
+                    value={pinConfirm}
+                    onChange={(e) => setPinConfirm(e.target.value)}
+                    disabled={pinBusy}
+                  />
+                </div>
+                <div className="form-actions">
+                  <button
+                    type="submit"
+                    className="btn primary"
+                    disabled={pinBusy || pinInput.length < 4 || pinConfirm.length < 4}
+                  >
+                    {pinActive ? t('profile.pin_change_btn') : t('profile.pin_set_btn')}
+                  </button>
+                  {pinActive && (
+                    <button
+                      type="button"
+                      className="btn secondary"
+                      onClick={() => void handleRemovePin()}
+                      disabled={pinBusy}
+                    >
+                      {t('profile.pin_remove_btn')}
+                    </button>
+                  )}
+                </div>
+              </form>
+            </section>
+
+            <section className="member-editor-card glass">
+              <div className="profile-section-header">
+                <KeyRound size={20} />
+                <h3>{t('profile.passkeys_title')}</h3>
+              </div>
+              <p className="profile-section-desc">{t('profile.passkeys_desc')}</p>
+
+              {profile.credentials.length === 0 ? (
+                <p className="profile-empty">{t('profile.passkeys_empty')}</p>
+              ) : (
+                <ul className="profile-passkey-list">
+                  {profile.credentials.map((cred) => (
+                    <li key={cred.id} className="profile-passkey-item">
+                      <div className="profile-passkey-main">
+                        <span className="profile-passkey-label">
+                          {cred.label || t('profile.passkey_unnamed')}
+                        </span>
+                        <span className="profile-passkey-id">{cred.credentialIdPreview}</span>
+                        {cred.transports.length > 0 && (
+                          <span className="profile-passkey-transports">
+                            {cred.transports.join(', ')}
+                          </span>
+                        )}
+                        <div className="profile-passkey-rename">
+                          <input
+                            type="text"
+                            className="input-text"
+                            value={passkeyLabels[cred.id] ?? ''}
+                            onChange={(e) =>
+                              setPasskeyLabels((prev) => ({ ...prev, [cred.id]: e.target.value }))
+                            }
+                            placeholder={t('profile.passkey_label_placeholder')}
+                            disabled={passkeyBusy}
+                            maxLength={64}
+                          />
+                          <button
+                            type="button"
+                            className="btn secondary"
+                            onClick={() => void handleRenamePasskey(cred.id)}
+                            disabled={passkeyBusy}
+                          >
+                            {t('profile.passkey_rename_btn')}
+                          </button>
+                        </div>
+                      </div>
+                      <button
+                        type="button"
+                        className="btn-icon danger"
+                        onClick={() => void handleRemovePasskey(cred.id)}
+                        disabled={passkeyBusy}
+                        title={t('profile.remove_passkey_btn')}
+                      >
+                        <Trash2 size={16} />
+                      </button>
+                    </li>
+                  ))}
+                </ul>
+              )}
+
+              <div className="profile-add-passkey">
+                <div className="input-group">
+                  <label htmlFor="profile-new-passkey-label">{t('profile.passkey_label')}</label>
+                  <input
+                    id="profile-new-passkey-label"
+                    type="text"
+                    className="input-text"
+                    value={newPasskeyLabel}
+                    onChange={(e) => setNewPasskeyLabel(e.target.value)}
+                    placeholder={t('profile.passkey_label_placeholder')}
+                    disabled={passkeyBusy}
+                    maxLength={64}
+                  />
+                </div>
+              </div>
+
+              <div className="form-actions mt-4">
+                <button
+                  type="button"
+                  className="btn primary"
+                  onClick={() => void handleAddPasskey()}
+                  disabled={passkeyBusy}
+                >
+                  <Plus size={16} />
+                  {passkeyBusy ? t('profile.processing') : t('profile.add_passkey_btn')}
+                </button>
+              </div>
+            </section>
+
+            <section className="form-card">
+              <div className="form-header">
+                <BarChart2 size={24} className="form-icon" />
+                <div>
+                  <h2>{t('profile.stats_title')}</h2>
+                  <p className="stats-subtitle">{t('profile.stats_subtitle')}</p>
+                </div>
+              </div>
+
+              {(statsTotals || profile) && (
+                <div className="stats-kpi-grid">
+                  <KpiCard
+                    icon={<BookOpen size={20} />}
+                    label={t('profile.stats_logbooks')}
+                    value={String(logbookCount)}
+                  />
+                  {statsTotals && (
+                    <>
+                      <KpiCard
+                        icon={<Anchor size={20} />}
+                        label={t('stats.travel_days')}
+                        value={String(statsTotals.travelDayCount)}
+                      />
+                      <KpiCard
+                        icon={<Gauge size={20} />}
+                        label={t('stats.total_distance')}
+                        value={formatNm(statsTotals.totalDistanceNm)}
+                        unit={t('stats.unit_nm')}
+                      />
+                      <KpiCard
+                        icon={<Sailboat size={20} />}
+                        label={t('stats.sail_distance')}
+                        value={formatNm(statsTotals.sailDistanceNm)}
+                        unit={t('stats.unit_nm')}
+                      />
+                      <KpiCard
+                        icon={<Gauge size={20} />}
+                        label={t('stats.motor_distance')}
+                        value={formatNm(statsTotals.motorDistanceNm)}
+                        unit={t('stats.unit_nm')}
+                      />
+                      <KpiCard
+                        icon={<Timer size={20} />}
+                        label={t('stats.motor_hours_total')}
+                        value={formatHours(statsTotals.totalMotorHours)}
+                        unit={t('stats.unit_h')}
+                      />
+                      <KpiCard
+                        icon={<Share2 size={20} />}
+                        label={t('profile.stats_shared_logbooks')}
+                        value={String(sharedLogbookCount)}
+                      />
+                    </>
+                  )}
+                  <KpiCard
+                    icon={<Calendar size={20} />}
+                    label={t('profile.stats_account_since')}
+                    value={accountAgeLabel}
+                  />
+                </div>
+              )}
+            </section>
+
+            <AccountDangerZone className="mt-6" />
+          </>
+        ) : null}
+      </main>
+    </div>
+  )
+}
@@ -0,0 +1,77 @@
+import {
+  createContext,
+  useContext,
+  useCallback,
+  useEffect,
+  useRef,
+  useMemo,
+  type ReactNode
+} from 'react'
+import { useTranslation } from 'react-i18next'
+import { useDialog } from '../components/ModalDialog.tsx'
+
+interface UnsavedChangesContextValue {
+  setDirty: (source: string, dirty: boolean) => void
+  confirmLeave: () => Promise<boolean>
+}
+
+const UnsavedChangesContext = createContext<UnsavedChangesContextValue | null>(null)
+
+export function UnsavedChangesProvider({ children }: { children: ReactNode }) {
+  const { t } = useTranslation()
+  const { showConfirm } = useDialog()
+  const dirtySources = useRef(new Set<string>())
+
+  const setDirty = useCallback((source: string, dirty: boolean) => {
+    if (dirty) dirtySources.current.add(source)
+    else dirtySources.current.delete(source)
+  }, [])
+
+  const confirmLeave = useCallback(async (): Promise<boolean> => {
+    if (dirtySources.current.size === 0) return true
+    return showConfirm(
+      t('common.unsaved_changes_message'),
+      t('common.unsaved_changes_title'),
+      t('common.unsaved_changes_leave'),
+      t('common.unsaved_changes_stay')
+    )
+  }, [showConfirm, t])
+
+  useEffect(() => {
+    const handler = (e: BeforeUnloadEvent) => {
+      if (dirtySources.current.size === 0) return
+      e.preventDefault()
+      e.returnValue = ''
+    }
+    window.addEventListener('beforeunload', handler)
+    return () => window.removeEventListener('beforeunload', handler)
+  }, [])
+
+  const value = useMemo(() => ({ setDirty, confirmLeave }), [setDirty, confirmLeave])
+
+  return (
+    <UnsavedChangesContext.Provider value={value}>
+      {children}
+    </UnsavedChangesContext.Provider>
+  )
+}
+
+export function useUnsavedChangesContext(): UnsavedChangesContextValue {
+  const ctx = useContext(UnsavedChangesContext)
+  if (!ctx) {
+    throw new Error('useUnsavedChangesContext must be used within UnsavedChangesProvider')
+  }
+  return ctx
+}
+
+/** Register a form/view as having unsaved changes (cleared automatically on unmount). */
+export function useRegisterUnsavedChanges(source: string, isDirty: boolean) {
+  const { setDirty, confirmLeave } = useUnsavedChangesContext()
+
+  useEffect(() => {
+    setDirty(source, isDirty)
+    return () => setDirty(source, false)
+  }, [source, isDirty, setDirty])
+
+  return { confirmLeave }
+}
@@ -6,6 +6,8 @@ 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'

 function isUpdateSuppressed(): boolean {
  const suppressUntil = Number(sessionStorage.getItem(UPDATE_SUPPRESS_KEY) || '0')
@@ -48,8 +50,13 @@ export function usePwaUpdate() {
    needRefresh: [needRefresh, setNeedRefresh],
    updateServiceWorker
  } = useRegisterSW({
-    immediate: true,
+    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()
@@ -0,0 +1,25 @@
+import { describe, expect, it } from 'vitest'
+import deJson from './locales/de.json'
+import enJson from './locales/en.json'
+
+const resources = {
+  de: { translation: deJson.translation },
+  en: { translation: enJson.translation }
+}
+
+describe('course dial i18n keys', () => {
+  it.each([
+    'logs.event_course_section',
+    'logs.course_tab_mgk',
+    'logs.course_tab_rwk',
+    'logs.course_dial_hint',
+    'logs.course_step_fine',
+    'logs.wind_mode_cardinal'
+  ])('resolves %s in de and en bundles', async (key) => {
+    const { default: i18n } = await import('i18next')
+    await i18n.init({ lng: 'de', resources, defaultNS: 'translation' })
+    expect(i18n.t(key)).not.toBe(key)
+    await i18n.changeLanguage('en')
+    expect(i18n.t(key)).not.toBe(key)
+  })
+})
@@ -1,25 +1,36 @@
 import i18n from 'i18next'
 import { initReactI18next } from 'react-i18next'
 import LanguageDetector from 'i18next-browser-languagedetector'
-import enTranslation from './locales/en.json'
-import deTranslation from './locales/de.json'
+import enJson from './locales/en.json'
+import deJson from './locales/de.json'
+import { initSeo } from '../utils/seo.js'
+
+/** JSON files wrap strings in `translation` — register that namespace explicitly. */
+const resources = {
+  en: { translation: enJson.translation },
+  de: { translation: deJson.translation }
+}

 i18n
  .use(LanguageDetector)
  .use(initReactI18next)
  .init({
-    resources: {
-      en: enTranslation,
-      de: deTranslation
-    },
+    resources,
+    defaultNS: 'translation',
    fallbackLng: 'en',
+    supportedLngs: ['de', 'en'],
+    nonExplicitSupportedLngs: true,
+    load: 'languageOnly',
    interpolation: {
      escapeValue: false // React already escapes values (prevents XSS)
    },
    detection: {
-      order: ['localStorage', 'navigator'],
+      order: ['querystring', 'localStorage', 'navigator'],
+      lookupQuerystring: 'lng',
      caches: ['localStorage']
    }
  })

+initSeo(i18n)
+
 export default i18n
@@ -2,7 +2,15 @@
  "translation": {
    "app": {
      "name": "Kapteins Daagbok",
-      "tagline": "Privates Yacht-Logbuch"
+      "tagline": "Privates Yacht-Logbuch",
+      "beta": "Beta",
+      "beta_hint": "Beta-Version — Funktionen können sich noch ändern"
+    },
+    "common": {
+      "unsaved_changes_title": "Ungespeicherte Änderungen",
+      "unsaved_changes_message": "Du hast ungespeicherte Änderungen. Möchtest du die Seite wirklich verlassen? Deine Änderungen gehen verloren.",
+      "unsaved_changes_leave": "Verlassen",
+      "unsaved_changes_stay": "Bleiben"
    },
    "nav": {
      "dashboard": "Dashboard",
@@ -15,7 +23,7 @@
    },
    "auth": {
      "welcome": "Willkommen bei Kapteins Daagbok",
-      "tagline": "Sicheres, E2E-verschlüsseltes maritimes Logbuch.",
+      "tagline": "Dein sicheres, E2E-verschlüsseltes maritimes Logbuch.",
      "register": "Mit Passkey registrieren",
      "login": "Mit Passkey anmelden",
      "login_as": "Anmelden als {{name}}",
@@ -143,6 +151,7 @@
      "sign_passkey_signing": "Passkey wird angefordert…",
      "sign_passkey_signed": "Freigegeben von {{username}}",
      "sign_passkey_export": "Passkey: {{username}} ({{date}})",
+      "sign_attribution_export": "{{username}} ({{date}})",
      "sign_passkey_clear": "Passkey-Freigabe entfernen",
      "sign_mode_passkey": "Passkey",
      "sign_mode_classic": "Klassisch",
@@ -181,6 +190,23 @@
      "event_time": "Uhrzeit",
      "event_mgk": "MgK Kurs",
      "event_rwk": "RwK Kurs",
+      "event_course_section": "Kurs",
+      "course_dial_hint": "Am Ring drehen oder Grad eingeben",
+      "course_dial_step_label": "Schrittweite",
+      "course_step_fine": "1°",
+      "course_step_medium": "5°",
+      "course_step_coarse": "10°",
+      "course_tab_mgk": "MgK",
+      "course_tab_rwk": "rwK",
+      "course_invalid": "Ungültiger Kurs (0–360)",
+      "course_placeholder_degrees": "z. B. 180",
+      "course_placeholder_cardinal": "z. B. NW",
+      "compass_n": "N",
+      "compass_e": "O",
+      "compass_s": "S",
+      "compass_w": "W",
+      "wind_mode_cardinal": "Kardinal",
+      "wind_mode_degrees": "Als Grad",
      "event_wind_direction": "Wind-Richtung",
      "event_wind_strength": "Windstärke",
      "event_sea_state": "Seegang",
@@ -196,6 +222,10 @@
      "event_heel": "Krängung (°)",
      "event_sails": "Segelführung / Motor",
      "motor_propulsion": "Maschinenfahrt",
+      "sails_picker_show_more": "Alle Segel anzeigen",
+      "sails_picker_show_less": "Weniger anzeigen",
+      "motor_hours": "Maschinenstunden (gesamt)",
+      "fuel_per_motor_hour": "Verbrauch pro Maschinenstunde",
      "event_distance": "Distanz (sm)",
      "export_csv": "CSV herunterladen",
      "share_csv": "CSV teilen",
@@ -258,11 +288,106 @@
      "role_crew": "Crew-Zugang",
      "role_crew_hint": "Eingeladenes Logbuch — du kannst als Crew mitarbeiten und signieren",
      "role_read": "Nur Lesen",
-      "role_read_hint": "Geteiltes Logbuch — nur Ansicht, keine Bearbeitung"
+      "role_read_hint": "Geteiltes Logbuch — nur Ansicht, keine Bearbeitung",
+      "open_profile": "Profil von {{name}} öffnen",
+      "edit_title": "Logbuch umbenennen",
+      "edit_placeholder": "Neuer Name des Logbuchs",
+      "edit_success": "Logbuch erfolgreich umbenannt",
+      "edit_btn": "Umbenennen"
+    },
+    "profile": {
+      "title": "Benutzerprofil",
+      "subtitle": "Konto, Passkeys und Statistiken für {{name}}",
+      "back": "Zurück zum Dashboard",
+      "loading": "Profil wird geladen…",
+      "load_error": "Profil konnte nicht geladen werden.",
+      "copy_failed": "Kopieren fehlgeschlagen.",
+      "processing": "Wird verarbeitet…",
+      "identity_title": "Konto-Identität",
+      "username": "Benutzername",
+      "user_id": "Benutzer-ID",
+      "copy_user_id": "Benutzer-ID kopieren",
+      "account_since": "Konto seit",
+      "prf_status": "Passkey-Schlüsselableitung (PRF)",
+      "prf_active": "Aktiv",
+      "prf_inactive": "Nicht eingerichtet",
+      "passkeys_title": "Passkeys",
+      "passkeys_desc": "Registriere auf jedem Gerät einen eigenen Passkey. So kannst du dich auch nach einem Plattformwechsel anmelden.",
+      "passkeys_empty": "Keine Passkeys gefunden.",
+      "add_passkey_btn": "Neuen Passkey hinzufügen",
+      "add_passkey_success": "Passkey erfolgreich hinzugefügt.",
+      "add_passkey_failed": "Passkey konnte nicht hinzugefügt werden.",
+      "remove_passkey_btn": "Passkey entfernen",
+      "remove_passkey_last_title": "Letzter Passkey",
+      "remove_passkey_last_desc": "Der einzige Passkey kann nicht entfernt werden, ohne den Zugang zu deinem Konto zu verlieren. Um das Konto vollständig zu löschen, nutze die Gefahrenzone am Ende dieser Seite.",
+      "remove_passkey_failed": "Passkey konnte nicht entfernt werden.",
+      "remove_passkey_confirm_title": "Passkey entfernen?",
+      "remove_passkey_confirm_desc": "Dieses Gerät kann sich danach nicht mehr mit diesem Passkey anmelden.",
+      "remove_passkey_confirm_yes": "Entfernen",
+      "remove_passkey_confirm_no": "Abbrechen",
+      "pin_title": "Lokaler PIN",
+      "pin_status": "Status",
+      "pin_active": "Aktiv auf diesem Gerät",
+      "pin_inactive": "Nicht eingerichtet",
+      "pin_confirm_label": "PIN bestätigen",
+      "pin_confirm_placeholder": "PIN erneut eingeben",
+      "pin_set_btn": "PIN einrichten",
+      "pin_change_btn": "PIN ändern",
+      "pin_remove_btn": "PIN entfernen",
+      "pin_saved": "PIN gespeichert.",
+      "pin_save_failed": "PIN konnte nicht gespeichert werden.",
+      "pin_mismatch": "Die PIN-Eingaben stimmen nicht überein.",
+      "pin_length_error": "Die PIN muss mindestens 4 Zeichen haben.",
+      "pin_no_session": "Sitzung abgelaufen — bitte erneut anmelden.",
+      "remove_pin_confirm_title": "PIN entfernen?",
+      "remove_pin_confirm_desc": "Du musst dich auf diesem Gerät wieder mit Passkey oder Wiederherstellungsschlüssel anmelden.",
+      "remove_pin_confirm_yes": "PIN entfernen",
+      "remove_pin_confirm_no": "Abbrechen",
+      "security_title": "Sicherheits-Checkliste",
+      "security_desc": "Überblick über die wichtigsten Schutzmechanismen deines Kontos.",
+      "security_passkeys_ok": "Mindestens ein Passkey registriert",
+      "security_passkeys_missing": "Kein Passkey registriert",
+      "security_prf_ok": "PRF-Schlüsselableitung aktiv",
+      "security_prf_missing": "PRF nicht eingerichtet",
+      "security_pin_ok": "Lokaler PIN auf diesem Gerät",
+      "security_pin_missing": "Kein lokaler PIN",
+      "security_recovery_ok": "Wiederherstellungsschlüssel eingerichtet",
+      "security_recovery_hint": "Die 12 Wörter wurden bei der Registrierung angezeigt. Bewahre sie offline und getrennt vom Gerät auf. Du kannst unten einen neuen Schlüssel erstellen — der alte wird dann ungültig.",
+      "recovery_rotate_btn": "Neuen Wiederherstellungsschlüssel erstellen",
+      "recovery_rotate_confirm_title": "Neuen Wiederherstellungsschlüssel erstellen?",
+      "recovery_rotate_confirm_desc": "Der bisherige 12-Wörter-Schlüssel wird sofort ungültig. Stelle sicher, dass du den neuen Schlüssel sicher aufbewahrst, bevor du fortfährst.",
+      "recovery_rotate_confirm_yes": "Neuen Schlüssel erstellen",
+      "recovery_rotate_confirm_no": "Abbrechen",
+      "recovery_rotate_new_warning": "WICHTIG: Schreib diese 12 Wörter auf und bewahre sie offline auf. Der bisherige Wiederherstellungsschlüssel ist ab sofort ungültig.",
+      "recovery_rotate_failed": "Wiederherstellungsschlüssel konnte nicht erstellt werden.",
+      "recovery_rotate_no_session": "Verschlüsselungssitzung abgelaufen — bitte abmelden und erneut anmelden, dann erneut versuchen.",
+      "device_title": "Dieses Gerät",
+      "device_desc": "Lokaler Cache, Sync-Status und Schnell-Login auf diesem Browser.",
+      "device_sync_pending": "{{count}} ausstehende Sync-Einträge",
+      "device_sync_ok": "Alle lokalen Änderungen synchronisiert",
+      "device_remembered": "Account für Schnell-Login auf diesem Gerät gespeichert",
+      "device_not_remembered": "Account nicht in der Schnell-Login-Liste",
+      "device_forget_btn": "Account auf diesem Gerät vergessen",
+      "device_forget_confirm_title": "Schnell-Login entfernen?",
+      "device_forget_confirm_desc": "Der Account verschwindet aus der Schnell-Login-Liste auf diesem Gerät. Deine Session und lokalen Logbücher bleiben erhalten.",
+      "device_forget_confirm_yes": "Entfernen",
+      "device_forget_confirm_no": "Abbrechen",
+      "passkey_label": "Name für neuen Passkey (optional)",
+      "passkey_label_placeholder": "z. B. MacBook, iPhone",
+      "passkey_rename_btn": "Name speichern",
+      "passkey_rename_success": "Passkey-Name gespeichert.",
+      "passkey_rename_failed": "Passkey-Name konnte nicht gespeichert werden.",
+      "passkey_unnamed": "Unbenannter Passkey",
+      "stats_title": "Statistiken",
+      "stats_subtitle": "Über alle deine Logbücher auf diesem Gerät",
+      "stats_logbooks": "Logbücher",
+      "stats_account_since": "Konto seit",
+      "stats_shared_logbooks": "Geteilte Logbücher"
    },
    "crew": {
      "title": "Skipper- & Crew-Profile",
      "skipper_section": "Skipper-Profil",
+      "skipper_read_only_hint": "Das Skipper-Profil kann nur vom Logbuch-Eigner bearbeitet werden.",
      "crew_section": "Crew-Liste",
      "add_crew": "Crew-Mitglied hinzufügen",
      "edit_crew": "Crew-Mitglied bearbeiten",
@@ -320,6 +445,7 @@
      "color_scheme_dark": "Dunkel",
      "share_title": "Logbuch teilen (Schreibgeschützt)",
      "share_desc": "Aktiviere diese Option, um einen öffentlichen, schreibgeschützten Link zu erstellen. Jeder mit dem Link kann deine Reisen, Yacht-Profile und Besatzung ansehen. Die Verschlüsselungsschlüssel werden niemals an den Server übertragen (sie bleiben im Hash-Teil der URL).",
+      "share_privacy_warning": "Empfehlung: Teile diesen Link nur privat (z. B. per E-Mail oder Messenger), nicht in sozialen Medien.",
      "share_enable": "Öffentlichen Link aktivieren",
      "share_copied": "Link kopiert!",
      "share_copy_btn": "Link kopieren",
@@ -331,6 +457,7 @@
      "delete_account_confirm_yes": "Ja, Konto und alle Daten löschen",
      "delete_account_confirm_no": "Abbrechen",
      "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…",
      "tour_title": "App-Tour",
      "tour_desc": "Lass dich erneut durch die wichtigsten Bereiche der App führen.",
@@ -469,6 +596,9 @@
      "travel_days": "Reisetage",
      "sail_distance": "Unter Segel",
      "motor_distance": "Maschinenfahrt",
+      "motor_hours_total": "Maschinenstunden gesamt",
+      "daily_motor_hours": "Maschinenstunden pro Reisetag",
+      "avg_motor_hours": "Ø Maschinenstunden pro Reisetag",
      "unknown_propulsion": "Unbekannt",
      "fuel_total": "Kraftstoff gesamt",
      "water_total": "Wasser gesamt",
@@ -482,9 +612,12 @@
      "avg_fuel": "Ø Kraftstoff",
      "avg_water": "Ø Wasser",
      "fuel_per_nm": "Kraftstoff pro sm",
+      "fuel_per_motor_hour": "Kraftstoff pro Maschinenstunde",
+      "daily_fuel_per_motor_hour": "Kraftstoffverbrauch pro Maschinenstunde je Reisetag",
      "fuel_legend": "Kraftstoff",
      "water_legend": "Wasser",
      "unit_nm": "sm",
+      "unit_h": "h",
      "unit_l": "L",
      "day_label": "Tag {{day}}",
      "account_logbooks": "Logbücher im Überblick",
@@ -542,6 +675,12 @@
          "body": "Du landest gleich im Statistik-Dashboard. Die Tour kannst du jederzeit unter Einstellungen erneut starten. Gute Fahrt!"
        }
      }
+    },
+    "seo": {
+      "title": "Kapteins Daagbok – Kostenloses digitales Yacht-Logbuch (werbefrei)",
+      "description": "Kostenloses, werbefreies digitales Yacht-Logbuch mit End-to-End-Verschlüsselung und Passkey-Anmeldung. Reisetage, GPS-Tracks, Crew und Schiffsdaten sicher dokumentieren – auch offline als PWA.",
+      "keywords": "Yacht-Logbuch, Schiffstagebuch, Bordlogbuch, Segeln, Passkey, E2E-Verschlüsselung, GPS-Track, maritimes Logbuch, kostenlos, werbefrei, gratis, ohne Werbung",
+      "ogImageAlt": "Kapteins Daagbok Logo"
    }
  }
 }
@@ -2,7 +2,15 @@
  "translation": {
    "app": {
      "name": "Kapteins Daagbok",
-      "tagline": "Private Yacht Logbook"
+      "tagline": "Private Yacht Logbook",
+      "beta": "Beta",
+      "beta_hint": "Beta release — features may still change"
+    },
+    "common": {
+      "unsaved_changes_title": "Unsaved changes",
+      "unsaved_changes_message": "You have unsaved changes. Leave this page anyway? Your changes will be lost.",
+      "unsaved_changes_leave": "Leave",
+      "unsaved_changes_stay": "Stay"
    },
    "nav": {
      "dashboard": "Dashboard",
@@ -143,6 +151,7 @@
      "sign_passkey_signing": "Requesting Passkey…",
      "sign_passkey_signed": "Signed by {{username}}",
      "sign_passkey_export": "Passkey: {{username}} ({{date}})",
+      "sign_attribution_export": "{{username}} ({{date}})",
      "sign_passkey_clear": "Remove Passkey signature",
      "sign_mode_passkey": "Passkey",
      "sign_mode_classic": "Classic",
@@ -181,6 +190,23 @@
      "event_time": "Time",
      "event_mgk": "MgK Course",
      "event_rwk": "RwK Course",
+      "event_course_section": "Course",
+      "course_dial_hint": "Drag the ring or enter degrees",
+      "course_dial_step_label": "Step size",
+      "course_step_fine": "1°",
+      "course_step_medium": "5°",
+      "course_step_coarse": "10°",
+      "course_tab_mgk": "MgK",
+      "course_tab_rwk": "rwK",
+      "course_invalid": "Invalid course (0–360)",
+      "course_placeholder_degrees": "e.g. 180",
+      "course_placeholder_cardinal": "e.g. NW",
+      "compass_n": "N",
+      "compass_e": "E",
+      "compass_s": "S",
+      "compass_w": "W",
+      "wind_mode_cardinal": "Cardinal",
+      "wind_mode_degrees": "As degrees",
      "event_wind_direction": "Wind Dir",
      "event_wind_strength": "Wind Str",
      "event_sea_state": "Sea State",
@@ -196,6 +222,10 @@
      "event_heel": "Heel Angle (°)",
      "event_sails": "Sails / Motor Status",
      "motor_propulsion": "Engine Propulsion",
+      "sails_picker_show_more": "Show all sails",
+      "sails_picker_show_less": "Show less",
+      "motor_hours": "Engine hours (total)",
+      "fuel_per_motor_hour": "Consumption per engine hour",
      "event_distance": "Distance (nm)",
      "export_csv": "Download CSV",
      "share_csv": "Share CSV",
@@ -258,11 +288,106 @@
      "role_crew": "Crew access",
      "role_crew_hint": "Invited logbook — you can collaborate and sign as crew",
      "role_read": "Read only",
-      "role_read_hint": "Shared logbook — view only, no editing"
+      "role_read_hint": "Shared logbook — view only, no editing",
+      "open_profile": "Open profile for {{name}}",
+      "edit_title": "Rename Logbook",
+      "edit_placeholder": "New name of the logbook",
+      "edit_success": "Logbook renamed successfully",
+      "edit_btn": "Rename"
+    },
+    "profile": {
+      "title": "User profile",
+      "subtitle": "Account, passkeys and statistics for {{name}}",
+      "back": "Back to dashboard",
+      "loading": "Loading profile…",
+      "load_error": "Could not load profile.",
+      "copy_failed": "Copy failed.",
+      "processing": "Processing…",
+      "identity_title": "Account identity",
+      "username": "Username",
+      "user_id": "User ID",
+      "copy_user_id": "Copy user ID",
+      "account_since": "Account since",
+      "prf_status": "Passkey key derivation (PRF)",
+      "prf_active": "Active",
+      "prf_inactive": "Not configured",
+      "passkeys_title": "Passkeys",
+      "passkeys_desc": "Register a passkey on each device you use. This helps when switching platforms or browsers.",
+      "passkeys_empty": "No passkeys found.",
+      "add_passkey_btn": "Add new passkey",
+      "add_passkey_success": "Passkey added successfully.",
+      "add_passkey_failed": "Could not add passkey.",
+      "remove_passkey_btn": "Remove passkey",
+      "remove_passkey_last_title": "Last passkey",
+      "remove_passkey_last_desc": "The only passkey cannot be removed without losing access to your account. To delete the account entirely, use the danger zone at the bottom of this page.",
+      "remove_passkey_failed": "Could not remove passkey.",
+      "remove_passkey_confirm_title": "Remove passkey?",
+      "remove_passkey_confirm_desc": "This device will no longer be able to sign in with this passkey.",
+      "remove_passkey_confirm_yes": "Remove",
+      "remove_passkey_confirm_no": "Cancel",
+      "pin_title": "Local PIN",
+      "pin_status": "Status",
+      "pin_active": "Active on this device",
+      "pin_inactive": "Not configured",
+      "pin_confirm_label": "Confirm PIN",
+      "pin_confirm_placeholder": "Re-enter PIN",
+      "pin_set_btn": "Set PIN",
+      "pin_change_btn": "Change PIN",
+      "pin_remove_btn": "Remove PIN",
+      "pin_saved": "PIN saved.",
+      "pin_save_failed": "Could not save PIN.",
+      "pin_mismatch": "PIN entries do not match.",
+      "pin_length_error": "PIN must be at least 4 characters.",
+      "pin_no_session": "Session expired — please sign in again.",
+      "remove_pin_confirm_title": "Remove PIN?",
+      "remove_pin_confirm_desc": "You will need to sign in on this device with passkey or recovery phrase again.",
+      "remove_pin_confirm_yes": "Remove PIN",
+      "remove_pin_confirm_no": "Cancel",
+      "security_title": "Security checklist",
+      "security_desc": "Overview of the most important protections for your account.",
+      "security_passkeys_ok": "At least one passkey registered",
+      "security_passkeys_missing": "No passkey registered",
+      "security_prf_ok": "PRF key derivation active",
+      "security_prf_missing": "PRF not configured",
+      "security_pin_ok": "Local PIN on this device",
+      "security_pin_missing": "No local PIN",
+      "security_recovery_ok": "Recovery phrase configured",
+      "security_recovery_hint": "The 12 words were shown at registration. Store them offline and separately from this device. You can create a new phrase below — the old one will then be invalidated.",
+      "recovery_rotate_btn": "Create new recovery phrase",
+      "recovery_rotate_confirm_title": "Create new recovery phrase?",
+      "recovery_rotate_confirm_desc": "Your previous 12-word phrase will be invalidated immediately. Make sure you can store the new phrase securely before continuing.",
+      "recovery_rotate_confirm_yes": "Create new phrase",
+      "recovery_rotate_confirm_no": "Cancel",
+      "recovery_rotate_new_warning": "IMPORTANT: Write down these 12 words and store them offline. Your previous recovery phrase is no longer valid.",
+      "recovery_rotate_failed": "Could not create a new recovery phrase.",
+      "recovery_rotate_no_session": "Encryption session expired — please sign out and sign in again, then retry.",
+      "device_title": "This device",
+      "device_desc": "Local cache, sync status, and quick login on this browser.",
+      "device_sync_pending": "{{count}} pending sync items",
+      "device_sync_ok": "All local changes synced",
+      "device_remembered": "Account saved for quick login on this device",
+      "device_not_remembered": "Account not in the quick-login list",
+      "device_forget_btn": "Forget account on this device",
+      "device_forget_confirm_title": "Remove quick login?",
+      "device_forget_confirm_desc": "The account will be removed from the quick-login list on this device. Your session and local logbooks stay on this device.",
+      "device_forget_confirm_yes": "Remove",
+      "device_forget_confirm_no": "Cancel",
+      "passkey_label": "Name for new passkey (optional)",
+      "passkey_label_placeholder": "e.g. MacBook, iPhone",
+      "passkey_rename_btn": "Save name",
+      "passkey_rename_success": "Passkey name saved.",
+      "passkey_rename_failed": "Could not save passkey name.",
+      "passkey_unnamed": "Unnamed passkey",
+      "stats_title": "Statistics",
+      "stats_subtitle": "Across all your logbooks on this device",
+      "stats_logbooks": "Logbooks",
+      "stats_account_since": "Account since",
+      "stats_shared_logbooks": "Shared logbooks"
    },
    "crew": {
      "title": "Skipper & Crew Profiles",
      "skipper_section": "Skipper Profile",
+      "skipper_read_only_hint": "The skipper profile can only be edited by the logbook owner.",
      "crew_section": "Crew List",
      "add_crew": "Add Crew Member",
      "edit_crew": "Edit Crew Member",
@@ -320,6 +445,7 @@
      "color_scheme_dark": "Dark",
      "share_title": "Share Logbook (Read-Only)",
      "share_desc": "Enable this to generate a public, read-only link. Anyone with the link can view your travels, yacht profile, and crew members. Decryption keys are never transmitted to the server (they stay in the hash part of the URL).",
+      "share_privacy_warning": "Recommendation: Share this link only privately (e.g. via email or messenger), not on social media.",
      "share_enable": "Enable Public Link",
      "share_copied": "Link copied!",
      "share_copy_btn": "Copy Link",
@@ -331,6 +457,7 @@
      "delete_account_confirm_yes": "Yes, Delete Account and All Data",
      "delete_account_confirm_no": "Cancel",
      "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…",
      "tour_title": "App tour",
      "tour_desc": "Take a guided walkthrough of the main areas of the app again.",
@@ -469,6 +596,9 @@
      "travel_days": "Travel days",
      "sail_distance": "Under sail",
      "motor_distance": "Engine",
+      "motor_hours_total": "Total engine hours",
+      "daily_motor_hours": "Engine hours per travel day",
+      "avg_motor_hours": "Avg. engine hours per travel day",
      "unknown_propulsion": "Unknown",
      "fuel_total": "Total fuel",
      "water_total": "Total water",
@@ -482,9 +612,12 @@
      "avg_fuel": "Avg. fuel",
      "avg_water": "Avg. water",
      "fuel_per_nm": "Fuel per nm",
+      "fuel_per_motor_hour": "Fuel per engine hour",
+      "daily_fuel_per_motor_hour": "Fuel consumption per engine hour by travel day",
      "fuel_legend": "Fuel",
      "water_legend": "Water",
      "unit_nm": "nm",
+      "unit_h": "h",
      "unit_l": "L",
      "day_label": "Day {{day}}",
      "account_logbooks": "Logbooks overview",
@@ -542,6 +675,12 @@
          "body": "You'll land on the statistics dashboard next. You can restart the tour anytime in Settings. Fair winds!"
        }
      }
+    },
+    "seo": {
+      "title": "Kapteins Daagbok – Free Digital Yacht Logbook (Ad-Free)",
+      "description": "Free, ad-free digital yacht logbook with end-to-end encryption and Passkey sign-in. Document travel days, GPS tracks, crew and vessel data securely — offline-capable PWA.",
+      "keywords": "yacht logbook, ship logbook, sailing log, maritime logbook, passkey, E2E encryption, GPS track, free, ad-free, offline PWA",
+      "ogImageAlt": "Kapteins Daagbok logo"
    }
  }
 }
@@ -3,14 +3,55 @@ import { createRoot } from 'react-dom/client'
 import 'leaflet/dist/leaflet.css'
 import './themes.css'
 import './index.css'
-import App from './App.tsx'
 import './i18n'
+import App from './App.tsx'
 import { applyAppearanceToDocument } from './services/appearance.ts'

-applyAppearanceToDocument()
+/** Stale PWA precache on localhost can shadow Vite dev modules. */
+async function clearDevServiceWorkerCaches(): Promise<void> {
+  if (!import.meta.env.DEV || !('serviceWorker' in navigator)) return
+  const regs = await navigator.serviceWorker.getRegistrations()
+  await Promise.all(regs.map((r) => r.unregister()))
+  if ('caches' in window) {
+    const keys = await caches.keys()
+    await Promise.all(keys.map((k) => caches.delete(k)))
+  }
+}

-createRoot(document.getElementById('root')!).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
-)
+function renderBootstrapError(message: string): void {
+  const root = document.getElementById('root')
+  if (!root) return
+  root.innerHTML = `
+    <div class="auth-screen">
+      <div class="auth-card glass" role="alert" style="max-width:420px">
+        <h2 style="margin-top:0">Kapteins Daagbok</h2>
+        <p style="color:var(--app-text-muted);line-height:1.5">${message}</p>
+        <button type="button" class="btn primary" style="width:100%;margin-top:16px" onclick="location.reload()">
+          Neu laden
+        </button>
+      </div>
+    </div>`
+}
+
+async function bootstrap(): Promise<void> {
+  applyAppearanceToDocument()
+  await clearDevServiceWorkerCaches()
+
+  const rootEl = document.getElementById('root')
+  if (!rootEl) {
+    throw new Error('Missing #root element')
+  }
+
+  createRoot(rootEl).render(
+    <StrictMode>
+      <App />
+    </StrictMode>,
+  )
+}
+
+void bootstrap().catch((err) => {
+  console.error('App bootstrap failed:', err)
+  renderBootstrapError(
+    'Die App konnte nicht gestartet werden. Bitte neu laden oder die App vollständig beenden und erneut öffnen.',
+  )
+})
@@ -14,6 +14,8 @@ export const PlausibleEvents = {
  ONBOARDING_TOUR_SKIPPED: 'Onboarding Tour Skipped',
  INVITE_GENERATED: 'Invite Generated',
  INVITE_ACCEPTED: 'Invite Accepted',
+  LOGBOOK_SHARED: 'Logbook Shared',
+  PUBLIC_LINK_OPENED: 'Public Link Opened',
  PDF_EXPORTED: 'PDF Exported',
  CSV_EXPORTED: 'CSV Exported',
  CSV_SHARED: 'CSV Shared',
@@ -23,7 +25,16 @@ export const PlausibleEvents = {
  DEMO_OPENED: 'Demo Opened',
  PUSH_ENABLED: 'Push Enabled',
  PUSH_DISABLED: 'Push Disabled',
-  FOOTER_LINK_CLICKED: 'Footer Link Clicked'
+  FOOTER_LINK_CLICKED: 'Footer Link Clicked',
+  PROFILE_OPENED: 'Profile Opened',
+  PASSKEY_ADDED: 'Passkey Added',
+  PASSKEY_REMOVED: 'Passkey Removed',
+  PASSKEY_RENAMED: 'Passkey Renamed',
+  LAST_PASSKEY_REMOVE_HINTED: 'Last Passkey Remove Hinted',
+  LOCAL_PIN_SET: 'Local PIN Set',
+  LOCAL_PIN_REMOVED: 'Local PIN Removed',
+  DEVICE_FORGOTTEN: 'Device Forgotten',
+  RECOVERY_ROTATED: 'Recovery Rotated'
 } as const

 export type PlausibleEventName = (typeof PlausibleEvents)[keyof typeof PlausibleEvents]
@@ -33,10 +33,33 @@ export function setActiveMasterKey(key: ArrayBuffer | null) {
 }

 export async function checkServerSession(): Promise<{ authenticated: boolean; userId?: string }> {
+  const controller = new AbortController()
+  const timeoutId = window.setTimeout(() => controller.abort(), 8_000)
  try {
-    return await apiJson<{ authenticated: boolean; userId?: string }>(`${API_BASE}/session`)
+    return await apiJson<{ authenticated: boolean; userId?: string }>(`${API_BASE}/session`, {
+      signal: controller.signal
+    })
  } catch {
    return { authenticated: false }
+  } finally {
+    window.clearTimeout(timeoutId)
+  }
+}
+
+/** Master key + username in memory/storage — enough to stay in the unlocked UI. */
+export function hasUnlockedLocalCrypto(): boolean {
+  return !!(getActiveMasterKey() && localStorage.getItem('active_username'))
+}
+
+/** Crypto unlock plus user id for authenticated API calls (userId may already be in localStorage). */
+export function hasUnlockedLocalSession(): boolean {
+  return hasUnlockedLocalCrypto() && !!localStorage.getItem('active_userid')
+}
+
+/** Persist server session user id when the /session response includes it. */
+export function persistSessionUserId(userId: string | undefined): void {
+  if (userId) {
+    localStorage.setItem('active_userid', userId)
  }
 }

@@ -543,3 +566,137 @@ export async function deleteAccount(): Promise<boolean> {
  }
  return false
 }
+
+export interface UserProfileCredential {
+  id: string
+  label: string | null
+  credentialIdPreview: string
+  transports: string[]
+}
+
+export interface UserProfile {
+  userId: string
+  username: string
+  createdAt: string
+  hasPrfEncryption: boolean
+  credentials: UserProfileCredential[]
+  serverMeta: {
+    ownedLogbookCount: number
+    collaborationCount: number
+  }
+}
+
+export async function fetchUserProfile(): Promise<UserProfile> {
+  return apiJson<UserProfile>(`${API_BASE}/profile`)
+}
+
+async function enrollPrfFromMasterKey(masterKey: ArrayBuffer, prfFirst: ArrayBuffer): Promise<void> {
+  const prfKey = await deriveKeyFromPrf(prfFirst)
+  const encryptedPrf = await encryptBuffer(masterKey, prfKey)
+  await apiJson(`${API_BASE}/enroll-prf`, {
+    method: 'POST',
+    body: JSON.stringify({
+      encryptedMasterKeyPrf: encryptedPrf.ciphertext,
+      encryptedMasterKeyPrfIv: encryptedPrf.iv,
+      encryptedMasterKeyPrfTag: encryptedPrf.tag
+    })
+  })
+}
+
+export async function addPasskey(label?: string): Promise<void> {
+  await reauthWithPasskey()
+
+  const options = await apiJson<any>(`${API_BASE}/add-credential-options`, {
+    method: 'POST'
+  })
+
+  if (!options.extensions) {
+    options.extensions = {}
+  }
+  options.extensions.prf = { eval: { first: PRF_SALT.buffer } }
+
+  let credentialResponse
+  const prfRequested = !!options.extensions?.prf
+  try {
+    credentialResponse = await startRegistration({ optionsJSON: options })
+  } catch (err: any) {
+    const isOptionError = err.name === 'NotSupportedError' ||
+      err.message?.toLowerCase().includes('options') ||
+      err.message?.toLowerCase().includes('process') ||
+      err.message?.toLowerCase().includes('unable to')
+    if (prfRequested && isOptionError) {
+      console.warn('Add passkey with PRF extension failed, retrying without PRF:', err)
+      if (options.extensions) {
+        delete options.extensions.prf
+      }
+      credentialResponse = await startRegistration({ optionsJSON: options })
+    } else {
+      throw err
+    }
+  }
+
+  await apiJson(`${API_BASE}/add-credential-verify`, {
+    method: 'POST',
+    body: JSON.stringify({
+      credentialResponse,
+      challenge: options.challenge,
+      ...(label?.trim() ? { label: label.trim() } : {})
+    })
+  })
+
+  const masterKey = getActiveMasterKey()
+  const prfFirstBuffer = extractPrfFirst(credentialResponse.clientExtensionResults || {})
+  if (masterKey && prfFirstBuffer) {
+    try {
+      await enrollPrfFromMasterKey(masterKey, prfFirstBuffer)
+    } catch (err) {
+      console.error('Failed to enroll PRF after adding passkey:', err)
+    }
+  }
+}
+
+export async function removePasskey(credentialDbId: string): Promise<void> {
+  await reauthWithPasskey()
+
+  const res = await apiFetch(`${API_BASE}/credentials/${credentialDbId}`, {
+    method: 'DELETE'
+  })
+
+  if (!res.ok) {
+    const body = await res.json().catch(() => ({}))
+    throw new Error(body.error || 'Failed to remove passkey')
+  }
+}
+
+export async function renamePasskey(credentialDbId: string, label: string): Promise<void> {
+  await reauthWithPasskey()
+
+  await apiJson(`${API_BASE}/credentials/${credentialDbId}`, {
+    method: 'PATCH',
+    body: JSON.stringify({ label })
+  })
+}
+
+export async function rotateRecoveryPhrase(): Promise<string> {
+  const masterKey = getActiveMasterKey()
+  if (!masterKey) {
+    throw new Error('NO_ACTIVE_MASTER_KEY')
+  }
+
+  await reauthWithPasskey()
+
+  const recoveryPhrase = generateRecoveryPhrase()
+  const recoveryKey = await deriveKeyFromPhrase(recoveryPhrase)
+  const encryptedRecovery = await encryptBuffer(masterKey, recoveryKey)
+
+  await apiJson(`${API_BASE}/rotate-recovery`, {
+    method: 'POST',
+    body: JSON.stringify({
+      encryptedMasterKeyRec: encryptedRecovery.ciphertext,
+      encryptedMasterKeyRecIv: encryptedRecovery.iv,
+      encryptedMasterKeyRecTag: encryptedRecovery.tag
+    })
+  })
+
+  return recoveryPhrase
+}
@@ -0,0 +1,53 @@
+import { beforeEach, describe, expect, it } from 'vitest'
+import {
+  hasUnlockedLocalCrypto,
+  hasUnlockedLocalSession,
+  setActiveMasterKey
+} from './auth.js'
+
+describe('local session unlock checks', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    setActiveMasterKey(null)
+  })
+
+  it('hasUnlockedLocalCrypto with master key and username only', () => {
+    setActiveMasterKey(new ArrayBuffer(32))
+    localStorage.setItem('active_username', 'skipper')
+    expect(hasUnlockedLocalCrypto()).toBe(true)
+    expect(hasUnlockedLocalSession()).toBe(false)
+  })
+
+  it('hasUnlockedLocalSession when userId is present', () => {
+    setActiveMasterKey(new ArrayBuffer(32))
+    localStorage.setItem('active_username', 'skipper')
+    localStorage.setItem('active_userid', 'user-1')
+    expect(hasUnlockedLocalCrypto()).toBe(true)
+    expect(hasUnlockedLocalSession()).toBe(true)
+  })
+
+  it('hasUnlockedLocalCrypto false without master key', () => {
+    localStorage.setItem('active_username', 'skipper')
+    localStorage.setItem('active_userid', 'user-1')
+    expect(hasUnlockedLocalCrypto()).toBe(false)
+  })
+})
+
+describe('persistSessionUserId', () => {
+  beforeEach(() => {
+    localStorage.clear()
+  })
+
+  it('stores userId when provided', async () => {
+    const { persistSessionUserId } = await import('./auth.js')
+    persistSessionUserId('user-42')
+    expect(localStorage.getItem('active_userid')).toBe('user-42')
+  })
+
+  it('does not clear existing userId when omitted', async () => {
+    const { persistSessionUserId } = await import('./auth.js')
+    localStorage.setItem('active_userid', 'user-1')
+    persistSessionUserId(undefined)
+    expect(localStorage.getItem('active_userid')).toBe('user-1')
+  })
+})
@@ -3,7 +3,9 @@ import { getActiveMasterKey } from './auth.js'
 import { getLogbookKey } from './logbookKeys.js'
 import { decryptJson } from './crypto.js'
 import { formatSignatureForExport, normalizeSignature } from '../utils/signatures.js'
+import { sortLogEventsByTime } from '../utils/logEntryPayload.js'
 import i18n from '../i18n/index.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'

 function escapeCsvValue(val: string | number | undefined | null): string {
  if (val === null || val === undefined) return '';
@@ -79,7 +81,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
  const headers = [
    'Date', 'Day of Travel', 'Departure Port', 'Destination Port',
    'Skipper Signature', 'Crew Signature',
-    'Track Distance (nm)', 'Track Max Speed (kn)', 'Track Avg Speed (kn)',
+    'Track Distance (nm)', 'Track Max Speed (kn)', 'Track Avg Speed (kn)', 'Motor Hours (h)',
    'Event Time', 'MgK Course', 'RwK Course',
    'Wind Dir', 'Wind Str', 'Barometer (hPa)', 'Sea State',
    'Current', 'Heel Angle', 'Sails/Motor', 'Log (nm)', 'Distance (nm)',
@@ -93,8 +95,12 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
  const exportLabels = {
    imagePlaceholder: i18n.t('logs.sign_export_image'),
    passkeyLabel: (username: string, signedAt: string) => {
-      const date = new Date(signedAt).toLocaleString(i18n.language === 'de' ? 'de-DE' : 'en-GB')
+      const date = formatAppDateTime(signedAt, i18n.language)
      return i18n.t('logs.sign_passkey_export', { username, date })
+    },
+    attributionLabel: (username: string, signedAt: string) => {
+      const date = formatAppDateTime(signedAt, i18n.language)
+      return i18n.t('logs.sign_attribution_export', { username, date })
    }
  };

@@ -108,6 +114,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
    const trackDist = entry.trackDistanceNm ?? '';
    const trackMax = entry.trackSpeedMaxKn ?? '';
    const trackAvg = entry.trackSpeedAvgKn ?? '';
+    const motorH = entry.motorHours ?? '';
    const fwM = entry.freshwater?.morning ?? '';
    const fwR = entry.freshwater?.refilled ?? '';
    const fwE = entry.freshwater?.evening ?? '';
@@ -123,7 +130,7 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
      rows.push([
        dateVal, travelDay, dep, dest,
        signS, signC,
-        trackDist, trackMax, trackAvg,
+        trackDist, trackMax, trackAvg, motorH,
        '', '', '',
        '', '', '', '',
        '', '', '', '', '',
@@ -134,12 +141,12 @@ export async function exportLogbookToCsv(logbookId: string, preloadedData?: { ya
      ].map(escapeCsvValue));
    } else {
      // Sort events chronologically by time
-      const sortedEvents = [...eventsList].sort((a, b) => (a.time || '').localeCompare(b.time || ''));
+      const sortedEvents = sortLogEventsByTime(eventsList);
      for (const ev of sortedEvents) {
        rows.push([
          dateVal, travelDay, dep, dest,
          signS, signC,
-          trackDist, trackMax, trackAvg,
+          trackDist, trackMax, trackAvg, motorH,
          ev.time || '', ev.mgk || '', ev.rwk || '',
          ev.windDirection || '', ev.windStrength || '', ev.windPressure || '', ev.seaState || '',
          ev.current || '', ev.heel || '', ev.sailsOrMotor || '', ev.logReading || '', ev.distance || '',
@@ -26,6 +26,7 @@ export interface DemoDaySpec {
  filename: string
  freshwater: { morning: number; refilled: number; evening: number; consumption: number }
  fuel: { morning: number; refilled: number; evening: number; consumption: number }
+  motorHours?: number
  events: Array<Record<string, string>>
 }

@@ -100,6 +101,7 @@ 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 },
+      motorHours: 1.5,
      events: [
        {
          time: '09:00',
@@ -247,6 +249,9 @@ export function buildPublicDemoFixture(): PublicDemoFixture {
      entryPayload.trackSpeedMaxKn = stats.speedMaxKn
      entryPayload.trackSpeedAvgKn = stats.speedAvgKn
    }
+    if (day.motorHours != null && day.motorHours > 0) {
+      entryPayload.motorHours = day.motorHours
+    }

    entries.push(entryPayload as PublicDemoFixture['entries'][number])

@@ -303,6 +308,9 @@ export function buildDemoEntryPayloads(): Array<{
      entryPayload.trackSpeedMaxKn = stats.speedMaxKn
      entryPayload.trackSpeedAvgKn = stats.speedAvgKn
    }
+    if (day.motorHours != null && day.motorHours > 0) {
+      entryPayload.motorHours = day.motorHours
+    }

    return {
      entryId,
@@ -322,3 +322,64 @@ export async function deleteLogbook(id: string): Promise<void> {
  await deleteLocalLogbookCache(id)
  trackPlausibleEvent(PlausibleEvents.LOGBOOK_DELETED)
 }
+
+// Update the title of a logbook. Encrypts the title and updates locally + on server
+export async function updateLogbookTitle(id: string, newTitle: string): Promise<void> {
+  const userId = localStorage.getItem('active_userid')
+  if (!userId) {
+    throw new Error('User not authenticated')
+  }
+
+  const masterKey = getActiveMasterKey()
+  if (!masterKey) {
+    throw new Error('Master key not found. User must log in.')
+  }
+
+  const logbookKey = await getLogbookKey(id) || masterKey
+
+  // E2E Encrypt the new title using the Logbook Key (or master key fallback)
+  const encrypted = await encryptJson(newTitle, logbookKey)
+  const encryptedTitleStr = JSON.stringify(encrypted)
+  const now = new Date().toISOString()
+
+  const payloadData = {
+    encryptedTitle: encryptedTitleStr
+  }
+
+  if (navigator.onLine) {
+    try {
+      const response = await apiFetch(`${API_BASE}/${id}`, {
+        method: 'PUT',
+        body: JSON.stringify(payloadData)
+      })
+
+      if (response.ok) {
+        // Update local IndexedDB cache as synced
+        await db.logbooks.update(id, {
+          encryptedTitle: encryptedTitleStr,
+          updatedAt: now,
+          isSynced: 1
+        })
+        return
+      }
+    } catch (error) {
+      console.warn('Failed to update logbook on server, saving locally instead:', error)
+    }
+  }
+
+  // If offline or request failed, store locally as unsynced and add to queue
+  await db.logbooks.update(id, {
+    encryptedTitle: encryptedTitleStr,
+    updatedAt: now,
+    isSynced: 0
+  })
+
+  await db.syncQueue.put({
+    action: 'update',
+    type: 'logbook',
+    payloadId: id,
+    logbookId: id,
+    data: JSON.stringify(payloadData),
+    updatedAt: now
+  })
+}
@@ -3,12 +3,13 @@ import { db } from './db.js'
 import { getActiveMasterKey } from './auth.js'
 import { getLogbookKey } from './logbookKeys.js'
 import { decryptJson } from './crypto.js'
-import { isSignatureImage, isPasskeySignature } from '../utils/signatures.js'
+import { isSignatureImage, isPasskeySignature, isClassicSignature, getSignaturePayload } from '../utils/signatures.js'
+import { sortLogEventsByTime } from '../utils/logEntryPayload.js'
 import i18n from '../i18n/index.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'

 function formatPasskeySignDate(signedAt: string): string {
-  const locale = i18n.language === 'de' ? 'de-DE' : 'en-GB'
-  return new Date(signedAt).toLocaleString(locale)
+  return formatAppDateTime(signedAt, i18n.language)
 }

 export async function generateLogbookPagePdf(logbookId: string, entryId: string, preloadedData?: { yacht: any; entry: any }): Promise<jsPDF> {
@@ -132,7 +133,7 @@ export async function generateLogbookPagePdf(logbookId: string, entryId: string,
  // Draw Data Rows
  const events = entry.events || [];
  const maxRows = 16;
-  const sortedEvents = [...events].sort((a: any, b: any) => (a.time || '').localeCompare(b.time || ''));
+  const sortedEvents = sortLogEventsByTime(events);

  doc.setFont('Helvetica', 'normal');

@@ -255,8 +256,16 @@ export async function generateLogbookPagePdf(logbookId: string, entryId: string,
    const crewDate = formatPasskeySignDate(entry.signCrew.signedAt);
    doc.text(`Passkey: ${entry.signCrew.username}`, sigX + 80.5, sigY + 9);
    doc.text(crewDate, sigX + 80.5, sigY + 13.5);
-  } else if (isSignatureImage(entry.signCrew)) {
-    doc.addImage(entry.signCrew, 'PNG', sigX + 80.5, sigY + 6, 72, 14)
+  } else if (isClassicSignature(entry.signCrew)) {
+    doc.setFont('Helvetica', 'normal');
+    const crewDate = formatPasskeySignDate(entry.signCrew.signedAt);
+    doc.text(entry.signCrew.username, sigX + 80.5, sigY + 9);
+    doc.text(crewDate, sigX + 80.5, sigY + 13.5);
+    if (isSignatureImage(entry.signCrew.payload)) {
+      doc.addImage(entry.signCrew.payload, 'PNG', sigX + 80.5, sigY + 6, 72, 14)
+    }
+  } else if (isSignatureImage(getSignaturePayload(entry.signCrew))) {
+    doc.addImage(getSignaturePayload(entry.signCrew), 'PNG', sigX + 80.5, sigY + 6, 72, 14)
  } else {
    doc.setFont('Helvetica', 'normal');
    doc.text(String(entry.signCrew || '—').toUpperCase(), sigX + 80.5, sigY + 11.2);
@@ -10,6 +10,7 @@ import {
  parseEventDistanceNm,
  splitDistanceByPropulsion
 } from '../utils/propulsionStats.js'
+import { computeFuelPerMotorHour } from '../utils/fuelStats.js'

 export type DistanceSource = 'gps' | 'events' | 'none'

@@ -27,6 +28,8 @@ export interface TravelDayStats {
  sailDistanceNm: number
  motorDistanceNm: number
  unknownPropulsionNm: number
+  motorHours: number
+  fuelPerMotorHourL: number | null
  hasGpsTrack: boolean
 }

@@ -59,12 +62,15 @@ export interface StatsTotals {
  sailDistanceNm: number
  motorDistanceNm: number
  unknownPropulsionNm: number
+  totalMotorHours: number
  totalFuelL: number
  totalFreshwaterL: number
  avgDistancePerDayNm: number
+  avgMotorHoursPerDay: number
  avgFuelPerDayL: number
  avgFreshwaterPerDayL: number
  fuelPerNmL: number | null
+  fuelPerMotorHourL: number | null
 }

 const TRACK_COLORS = [
@@ -102,6 +108,7 @@ function buildTotals(days: TravelDayStats[]): StatsTotals {
  const sailDistanceNm = days.reduce((sum, d) => sum + d.sailDistanceNm, 0)
  const motorDistanceNm = days.reduce((sum, d) => sum + d.motorDistanceNm, 0)
  const unknownPropulsionNm = days.reduce((sum, d) => sum + d.unknownPropulsionNm, 0)
+  const totalMotorHours = days.reduce((sum, d) => sum + d.motorHours, 0)
  const totalFuelL = days.reduce((sum, d) => sum + d.fuelConsumptionL, 0)
  const totalFreshwaterL = days.reduce((sum, d) => sum + d.freshwaterConsumptionL, 0)

@@ -112,10 +119,13 @@ function buildTotals(days: TravelDayStats[]): StatsTotals {
    sailDistanceNm: Number(sailDistanceNm.toFixed(2)),
    motorDistanceNm: Number(motorDistanceNm.toFixed(2)),
    unknownPropulsionNm: Number(unknownPropulsionNm.toFixed(2)),
+    totalMotorHours: Number(totalMotorHours.toFixed(1)),
    totalFuelL: Number(totalFuelL.toFixed(1)),
    totalFreshwaterL: Number(totalFreshwaterL.toFixed(1)),
    avgDistancePerDayNm:
      travelDayCount > 0 ? Number((totalDistanceNm / travelDayCount).toFixed(2)) : 0,
+    avgMotorHoursPerDay:
+      travelDayCount > 0 ? Number((totalMotorHours / travelDayCount).toFixed(1)) : 0,
    avgFuelPerDayL:
      travelDayCount > 0 ? Number((totalFuelL / travelDayCount).toFixed(1)) : 0,
    avgFreshwaterPerDayL:
@@ -123,7 +133,8 @@ function buildTotals(days: TravelDayStats[]): StatsTotals {
    fuelPerNmL:
      totalDistanceNm > 0 && totalFuelL > 0
        ? Number((totalFuelL / totalDistanceNm).toFixed(2))
-        : null
+        : null,
+    fuelPerMotorHourL: computeFuelPerMotorHour(totalFuelL, totalMotorHours)
  }
 }

@@ -180,6 +191,9 @@ async function loadTravelDaysForLogbook(
      hasGpsTrack = !!(await db.gpsTracks.get(entry.payloadId))
    }

+    const fuelConsumptionL = Number(payload.fuel?.consumption) || 0
+    const motorHours = Number(payload.motorHours) || 0
+
    days.push({
      entryId: entry.payloadId,
      logbookId,
@@ -189,11 +203,13 @@ async function loadTravelDaysForLogbook(
      destination: payload.destination || '',
      distanceNm,
      distanceSource,
-      fuelConsumptionL: Number(payload.fuel?.consumption) || 0,
+      fuelConsumptionL,
      freshwaterConsumptionL: Number(payload.freshwater?.consumption) || 0,
      sailDistanceNm: propulsion.sailDistanceNm,
      motorDistanceNm: propulsion.motorDistanceNm,
      unknownPropulsionNm: propulsion.unknownPropulsionNm,
+      motorHours,
+      fuelPerMotorHourL: computeFuelPerMotorHour(fuelConsumptionL, motorHours),
      hasGpsTrack
    })
  }
@@ -249,3 +265,7 @@ export function formatNm(value: number): string {
 export function formatLiters(value: number): string {
  return Number.isInteger(value) ? String(value) : value.toFixed(1)
 }
+
+export function formatHours(value: number): string {
+  return Number.isInteger(value) ? String(value) : value.toFixed(1)
+}
@@ -11,5 +11,16 @@ export interface PasskeySignature {
  clientVerified: boolean
 }

-/** Legacy: PNG data URL oder getippter Name */
-export type SignatureValue = string | PasskeySignature
+/** Klassische Unterschrift mit Benutzer-Zuordnung (Crew) */
+export interface ClassicSignature {
+  kind: 'classic'
+  version: 1
+  role: 'skipper' | 'crew'
+  userId: string
+  username: string
+  signedAt: string
+  payload: string
+}
+
+/** Legacy: PNG data URL oder getippter Name; oder strukturierte Signaturen */
+export type SignatureValue = string | PasskeySignature | ClassicSignature
@@ -0,0 +1,75 @@
+import { describe, expect, it } from 'vitest'
+import {
+  cardinalToDegrees,
+  degreesToCardinal,
+  formatCourseAngle,
+  isCardinalDirection,
+  normalizeCourseAngleString,
+  normalizeWindDirectionString,
+  parseCourseAngle,
+  pointerAngleToDegrees,
+  snapDegrees
+} from './courseAngle.js'
+
+describe('parseCourseAngle', () => {
+  it('parses padded and plain degrees', () => {
+    expect(parseCourseAngle('042')).toBe(42)
+    expect(parseCourseAngle('185°')).toBe(185)
+    expect(parseCourseAngle('360')).toBe(0)
+  })
+
+  it('rejects invalid values', () => {
+    expect(parseCourseAngle('999')).toBeNull()
+    expect(parseCourseAngle('abc')).toBeNull()
+  })
+
+  it('parses cardinal labels', () => {
+    expect(parseCourseAngle('NW')).toBe(315)
+  })
+})
+
+describe('snapDegrees', () => {
+  it('snaps to step', () => {
+    expect(snapDegrees(47, 5)).toBe(45)
+    expect(snapDegrees(358, 5)).toBe(0)
+  })
+})
+
+describe('cardinal helpers', () => {
+  it('roundtrips cardinal through degrees', () => {
+    expect(degreesToCardinal(225)).toBe('SW')
+    expect(cardinalToDegrees('SW')).toBe(225)
+    expect(isCardinalDirection('nne')).toBe(true)
+  })
+})
+
+describe('pointerAngleToDegrees', () => {
+  it('returns 0 for north', () => {
+    expect(pointerAngleToDegrees(100, 50, 100, 100)).toBe(0)
+  })
+
+  it('returns 90 for east', () => {
+    expect(Math.round(pointerAngleToDegrees(150, 100, 100, 100))).toBe(90)
+  })
+})
+
+describe('normalizeCourseAngleString', () => {
+  it('keeps empty when allowed', () => {
+    expect(normalizeCourseAngleString('', { allowEmpty: true })).toBe('')
+  })
+
+  it('normalizes numeric course', () => {
+    expect(normalizeCourseAngleString('042')).toBe('42')
+    expect(formatCourseAngle(42, true)).toBe('042')
+  })
+})
+
+describe('normalizeWindDirectionString', () => {
+  it('preserves cardinal wind', () => {
+    expect(normalizeWindDirectionString('nw')).toBe('NW')
+  })
+
+  it('normalizes degree wind', () => {
+    expect(normalizeWindDirectionString('090')).toBe('90')
+  })
+})
@@ -0,0 +1,160 @@
+export const CARDINAL_DIRECTIONS = [
+  'N', 'NNE', 'NE', 'ENE', 'E', 'ESE', 'SE', 'SSE',
+  'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW'
+] as const
+
+export type CardinalDirection = (typeof CARDINAL_DIRECTIONS)[number]
+export type CourseStep = 1 | 5 | 10
+
+const CARDINAL_SET = new Set<string>(CARDINAL_DIRECTIONS)
+
+export function isCardinalDirection(value: string): boolean {
+  return CARDINAL_SET.has(value.trim().toUpperCase())
+}
+
+export function cardinalToDegrees(label: string): number | null {
+  const upper = label.trim().toUpperCase()
+  const index = CARDINAL_DIRECTIONS.indexOf(upper as CardinalDirection)
+  if (index < 0) return null
+  return (index * 22.5) % 360
+}
+
+export function degreesToCardinal(degrees: number): CardinalDirection {
+  const normalized = ((degrees % 360) + 360) % 360
+  const index = Math.round(normalized / 22.5) % 16
+  return CARDINAL_DIRECTIONS[index]
+}
+
+export function snapDegrees(degrees: number, step: CourseStep): number {
+  const normalized = ((degrees % 360) + 360) % 360
+  const snapped = Math.round(normalized / step) * step
+  return snapped >= 360 ? 0 : snapped
+}
+
+/** 0° = north, clockwise (maritime compass). */
+export function pointerAngleToDegrees(
+  clientX: number,
+  clientY: number,
+  centerX: number,
+  centerY: number
+): number {
+  const dx = clientX - centerX
+  const dy = centerY - clientY
+  const radians = Math.atan2(dx, dy)
+  let degrees = (radians * 180) / Math.PI
+  if (degrees < 0) degrees += 360
+  return degrees
+}
+
+export function parseCourseAngle(value: string): number | null {
+  const trimmed = value.trim().replace(/°/g, '')
+  if (!trimmed) return null
+
+  const cardinalDeg = cardinalToDegrees(trimmed)
+  if (cardinalDeg !== null) return Math.round(cardinalDeg)
+
+  if (!/^\d{1,3}$/.test(trimmed)) return null
+  const degrees = parseInt(trimmed, 10)
+  if (Number.isNaN(degrees)) return null
+  if (degrees === 360) return 0
+  if (degrees < 0 || degrees > 360) return null
+  return degrees
+}
+
+export function formatCourseAngle(degrees: number, pad = false): string {
+  const normalized = ((Math.round(degrees) % 360) + 360) % 360
+  const text = String(normalized)
+  return pad ? text.padStart(3, '0') : text
+}
+
+export function normalizeCourseAngleString(
+  value: string,
+  options?: { allowEmpty?: boolean }
+): string {
+  const trimmed = value.trim()
+  if (!trimmed) return options?.allowEmpty ? '' : ''
+
+  if (isCardinalDirection(trimmed)) {
+    return trimmed.toUpperCase()
+  }
+
+  const parsed = parseCourseAngle(trimmed)
+  if (parsed === null) return trimmed
+  return formatCourseAngle(parsed)
+}
+
+export function normalizeWindDirectionString(value: string): string {
+  const trimmed = value.trim()
+  if (!trimmed) return ''
+
+  if (isCardinalDirection(trimmed)) {
+    return trimmed.toUpperCase()
+  }
+
+  const parsed = parseCourseAngle(trimmed)
+  if (parsed === null) return trimmed
+  return formatCourseAngle(parsed)
+}
+
+export function valueToDialDegrees(value: string, allowCardinal = false): number {
+  const parsed = parseCourseAngle(value)
+  if (parsed !== null) return parsed
+  if (allowCardinal && isCardinalDirection(value)) {
+    return cardinalToDegrees(value) ?? 0
+  }
+  return 0
+}
+
+export type CourseOutputMode = 'degrees' | 'cardinal'
+
+export function resolveCourseOutputMode(
+  value: string,
+  displayMode: 'degrees' | 'cardinal' | 'auto',
+  allowCardinal: boolean
+): CourseOutputMode {
+  if (!allowCardinal || displayMode === 'degrees') return 'degrees'
+  if (displayMode === 'cardinal') return 'cardinal'
+  return isCardinalDirection(value) ? 'cardinal' : 'degrees'
+}
+
+export function dialDegreesToStorageValue(
+  degrees: number,
+  mode: CourseOutputMode,
+  step: CourseStep
+): string {
+  const snapped = snapDegrees(degrees, step)
+  if (mode === 'cardinal') return degreesToCardinal(snapped)
+  return formatCourseAngle(snapped)
+}
+
+export function formatCourseDisplay(
+  value: string,
+  allowCardinal: boolean
+): string {
+  if (!value.trim()) return '—'
+  if (allowCardinal && isCardinalDirection(value)) return value.toUpperCase()
+  const parsed = parseCourseAngle(value)
+  if (parsed === null) return value
+  return `${formatCourseAngle(parsed, true)}°`
+}
+
+const STEP_STORAGE_KEY = 'kaptein-course-dial-step'
+
+export function loadCourseDialStep(): CourseStep {
+  try {
+    const raw = sessionStorage.getItem(STEP_STORAGE_KEY)
+    if (raw === '5') return 5
+    if (raw === '10') return 10
+  } catch {
+    /* ignore */
+  }
+  return 1
+}
+
+export function saveCourseDialStep(step: CourseStep): void {
+  try {
+    sessionStorage.setItem(STEP_STORAGE_KEY, String(step))
+  } catch {
+    /* ignore */
+  }
+}
@@ -0,0 +1,37 @@
+/** 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 APP_DATE_TIME_OPTIONS: Intl.DateTimeFormatOptions = {
+  year: 'numeric',
+  month: '2-digit',
+  day: '2-digit',
+  hour: '2-digit',
+  minute: '2-digit',
+  hour12: false
+}
+
+const APP_TIME_OPTIONS: Intl.DateTimeFormatOptions = {
+  hour: '2-digit',
+  minute: '2-digit',
+  hour12: false
+}
+
+function toDate(value: Date | string | number): Date | null {
+  const date = value instanceof Date ? value : new Date(value)
+  return Number.isNaN(date.getTime()) ? null : date
+}
+
+export function formatAppDateTime(value: Date | string | number, language?: string): string {
+  const date = toDate(value)
+  if (!date) return String(value)
+  return date.toLocaleString(resolveIntlLocale(language), APP_DATE_TIME_OPTIONS)
+}
+
+export function formatAppTime(value: Date | string | number, language?: string): string {
+  const date = toDate(value)
+  if (!date) return String(value)
+  return date.toLocaleTimeString(resolveIntlLocale(language), APP_TIME_OPTIONS)
+}
@@ -0,0 +1,13 @@
+/** Liters per motor hour from daily fuel consumption and motor hours. */
+export function computeFuelPerMotorHour(
+  fuelConsumptionL: number,
+  motorHours: number
+): number | null {
+  if (motorHours <= 0) return null
+  return Number((fuelConsumptionL / motorHours).toFixed(2))
+}
+
+export function formatFuelPerMotorHour(value: number | null | undefined): string {
+  if (value == null) return '—'
+  return Number.isInteger(value) ? String(value) : value.toFixed(2)
+}
@@ -0,0 +1,62 @@
+import type { i18n as I18nInstance } from 'i18next'
+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$/
+
+function createMockI18n(language: string): I18nInstance {
+  return {
+    isInitialized: true,
+    language,
+    t: (key: string) => key,
+    on: vi.fn()
+  } as unknown as I18nInstance
+}
+
+describe('normalizeSeoLang', () => {
+  it.each([
+    ['de', 'de'],
+    ['de-DE', 'de'],
+    ['en', 'en'],
+    ['en-US', 'en'],
+    ['en-GB', 'en']
+  ] as const)('maps %s to short code %s', (input, expected) => {
+    expect(normalizeSeoLang(input)).toBe(expected)
+  })
+})
+
+describe('updatePageSeo html lang', () => {
+  beforeEach(() => {
+    document.documentElement.lang = 'de'
+    window.history.replaceState({}, '', '/')
+  })
+
+  it.each([
+    ['de', 'de'],
+    ['en', 'en'],
+    ['en-GB', 'en']
+  ] 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)
+  })
+})
+
+describe('resolveIntlLocale', () => {
+  it('uses full BCP 47 tags for Intl formatting only', () => {
+    expect(resolveIntlLocale('de')).toBe('de-DE')
+    expect(resolveIntlLocale('en')).toBe('en-GB')
+  })
+
+  it('does not reuse Intl locale tags for html lang', () => {
+    const intlLocale = resolveIntlLocale('en')
+    const htmlLang = normalizeSeoLang('en')
+
+    expect(intlLocale).toBe('en-GB')
+    expect(htmlLang).toBe('en')
+    expect(htmlLang).not.toBe(intlLocale)
+  })
+})
@@ -1,3 +1,8 @@
+import {
+  normalizeCourseAngleString,
+  normalizeWindDirectionString
+} from './courseAngle.js'
+
 export interface LogEventPayload {
  time: string
  mgk: string
@@ -17,6 +22,100 @@ export interface LogEventPayload {
  remarks: string
 }

+/** Local time as HH:MM (24-hour). */
+export function currentLocalTimeHHMM(date: Date = new Date()): string {
+  const hours = String(date.getHours()).padStart(2, '0')
+  const minutes = String(date.getMinutes()).padStart(2, '0')
+  return `${hours}:${minutes}`
+}
+
+/** Parse 24h or 12h (AM/PM) time strings to HH:MM. */
+export function parseTimeToHHMM(value: string): string | null {
+  const trimmed = value.trim()
+  if (!trimmed) return null
+
+  const amPm = trimmed.match(/^(\d{1,2}):(\d{2})(?::\d{2})?\s*(AM|PM)$/i)
+  if (amPm) {
+    let hours = parseInt(amPm[1], 10)
+    const minutes = parseInt(amPm[2], 10)
+    const isPm = amPm[3].toUpperCase() === 'PM'
+    if (hours < 1 || hours > 12 || minutes < 0 || minutes > 59) return null
+    if (hours === 12) hours = isPm ? 12 : 0
+    else if (isPm) hours += 12
+    return `${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}`
+  }
+
+  const h24 = trimmed.match(/^(\d{1,2}):(\d{2})(?::\d{2})?$/)
+  if (h24) {
+    const hours = parseInt(h24[1], 10)
+    const minutes = parseInt(h24[2], 10)
+    if (hours >= 0 && hours <= 23 && minutes >= 0 && minutes <= 59) {
+      return `${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}`
+    }
+  }
+
+  return null
+}
+
+export function isValidTimeHHMM(value: string): boolean {
+  return parseTimeToHHMM(value) !== null
+}
+
+export function splitTimeHHMM(value: string): { hours: string; minutes: string } {
+  const parsed = parseTimeToHHMM(value) ?? currentLocalTimeHHMM()
+  return { hours: parsed.slice(0, 2), minutes: parsed.slice(3, 5) }
+}
+
+export function joinTimeHHMM(hours: string, minutes: string): string {
+  const h = Math.min(23, Math.max(0, parseInt(hours, 10) || 0))
+  const m = Math.min(59, Math.max(0, parseInt(minutes, 10) || 0))
+  return `${String(h).padStart(2, '0')}:${String(m).padStart(2, '0')}`
+}
+
+const LOG_EVENT_FIELDS: (keyof LogEventPayload)[] = [
+  'time', 'mgk', 'rwk', 'windPressure', 'windDirection', 'windStrength', 'seaState',
+  'weatherIcon', 'current', 'heel', 'sailsOrMotor', 'logReading', 'distance',
+  'gpsLat', 'gpsLng', 'remarks'
+]
+
+/** Normalize partial/legacy events so all fields are strings (safe for form + save). */
+export function normalizeLogEvent(event: Partial<LogEventPayload> | Record<string, unknown>): LogEventPayload {
+  const e = event as Record<string, unknown>
+  const timeRaw = String(e.time ?? '').trim()
+  const normalized: LogEventPayload = {
+    time: parseTimeToHHMM(timeRaw) ?? (timeRaw.length >= 5 ? timeRaw.slice(0, 5) : timeRaw),
+    mgk: normalizeCourseAngleString(String(e.mgk ?? ''), { allowEmpty: true }),
+    rwk: normalizeCourseAngleString(String(e.rwk ?? ''), { allowEmpty: true }),
+    windPressure: '',
+    windDirection: normalizeWindDirectionString(String(e.windDirection ?? '')),
+    windStrength: '',
+    seaState: '',
+    weatherIcon: '',
+    current: '',
+    heel: '',
+    sailsOrMotor: '',
+    logReading: '',
+    distance: '',
+    gpsLat: '',
+    gpsLng: '',
+    remarks: ''
+  }
+  for (const key of LOG_EVENT_FIELDS) {
+    if (key === 'time' || key === 'mgk' || key === 'rwk' || key === 'windDirection') continue
+    normalized[key] = String(e[key] ?? '').trim()
+  }
+  return normalized
+}
+
+export function logEventsEqual(a: LogEventPayload, b: LogEventPayload): boolean {
+  return LOG_EVENT_FIELDS.every((key) => a[key] === b[key])
+}
+
+/** Chronological order: earliest time first (HH:MM). */
+export function sortLogEventsByTime<T extends LogEventPayload>(events: T[]): T[] {
+  return [...events].sort((a, b) => (a.time || '').localeCompare(b.time || ''))
+}
+
 export interface LogEntryPayloadInput {
  date: string
  dayOfTravel: string
@@ -27,6 +126,7 @@ export interface LogEntryPayloadInput {
  trackDistanceNm?: number
  trackSpeedMaxKn?: number
  trackSpeedAvgKn?: number
+  motorHours?: number
  events: LogEventPayload[]
 }

@@ -38,12 +138,15 @@ export function buildLogEntryPayload(input: LogEntryPayloadInput): Record<string
    destination: input.destination.trim(),
    freshwater: { ...input.freshwater },
    fuel: { ...input.fuel },
-    events: input.events.map((e) => ({ ...e }))
+    events: sortLogEventsByTime(input.events.map((e) => normalizeLogEvent(e)))
  }

  if (input.trackDistanceNm !== undefined) payload.trackDistanceNm = input.trackDistanceNm
  if (input.trackSpeedMaxKn !== undefined) payload.trackSpeedMaxKn = input.trackSpeedMaxKn
  if (input.trackSpeedAvgKn !== undefined) payload.trackSpeedAvgKn = input.trackSpeedAvgKn
+  if (input.motorHours !== undefined && input.motorHours > 0) {
+    payload.motorHours = Number(input.motorHours.toFixed(2))
+  }

  return payload
 }
@@ -0,0 +1,73 @@
+import type { i18n as I18nInstance } from 'i18next'
+
+const SITE_ORIGIN = 'https://kapteins-daagbok.eu'
+
+export type SeoLang = 'de' | 'en'
+
+let i18nRef: I18nInstance | null = null
+
+export function normalizeSeoLang(lng: string): SeoLang {
+  return lng.startsWith('de') ? 'de' : 'en'
+}
+
+function setMeta(attr: 'name' | 'property', key: string, content: string) {
+  let el = document.querySelector(`meta[${attr}="${key}"]`)
+  if (!el) {
+    el = document.createElement('meta')
+    el.setAttribute(attr, key)
+    document.head.appendChild(el)
+  }
+  el.setAttribute('content', content)
+}
+
+function syncLanguageUrl(lang: SeoLang) {
+  const url = new URL(window.location.href)
+  const currentLng = url.searchParams.get('lng')
+  if (currentLng && normalizeSeoLang(currentLng) === lang) return
+
+  url.searchParams.set('lng', lang)
+  const next = `${url.pathname}${url.search}${url.hash}`
+  window.history.replaceState({}, '', next)
+}
+
+export function updatePageSeo(lng?: string) {
+  if (!i18nRef?.isInitialized) return
+
+  const lang = normalizeSeoLang(lng ?? i18nRef.language)
+  document.documentElement.lang = lang
+
+  const title = i18nRef.t('seo.title')
+  document.title = title
+
+  const description = i18nRef.t('seo.description')
+  const keywords = i18nRef.t('seo.keywords')
+  const imageAlt = i18nRef.t('seo.ogImageAlt')
+
+  setMeta('name', 'description', description)
+  setMeta('name', 'keywords', keywords)
+  setMeta('property', 'og:title', title)
+  setMeta('property', 'og:description', description)
+  setMeta('property', 'og:locale', lang === 'de' ? 'de_DE' : 'en_US')
+  setMeta('property', 'og:locale:alternate', lang === 'de' ? 'en_US' : 'de_DE')
+  setMeta('name', 'twitter:title', title)
+  setMeta('name', 'twitter:description', description)
+  setMeta('property', 'og:image:alt', imageAlt)
+  setMeta('name', 'twitter:image:alt', imageAlt)
+
+  syncLanguageUrl(lang)
+}
+
+export function initSeo(i18n: I18nInstance) {
+  i18nRef = i18n
+  i18n.on('initialized', () => updatePageSeo())
+  i18n.on('languageChanged', (lng) => updatePageSeo(lng))
+  if (i18n.isInitialized) {
+    updatePageSeo()
+  }
+}
+
+export function hreflangUrl(lang: SeoLang): string {
+  return `${SITE_ORIGIN}/?lng=${lang}`
+}
+
+export const seoSiteOrigin = SITE_ORIGIN
@@ -1,8 +1,13 @@
 import { hashEntryForSigning } from './entryCanonicalHash.js'
-import type { PasskeySignature, SignatureValue } from '../types/signatures.js'
+import type { ClassicSignature, PasskeySignature, SignatureValue } from '../types/signatures.js'

 export type SkipperSignStatus = 'none' | 'valid' | 'invalid'

+export interface SignatureAttribution {
+  username: string
+  signedAt: string
+}
+
 export function isSignatureImage(value: string | undefined | null): boolean {
  return typeof value === 'string' && value.startsWith('data:image/')
 }
@@ -16,9 +21,52 @@ export function isPasskeySignature(value: unknown): value is PasskeySignature {
  )
 }

+export function isClassicSignature(value: unknown): value is ClassicSignature {
+  return (
+    typeof value === 'object' &&
+    value !== null &&
+    (value as ClassicSignature).kind === 'classic' &&
+    (value as ClassicSignature).version === 1
+  )
+}
+
+export function getSignaturePayload(value: SignatureValue | '' | undefined | null): string {
+  if (!value) return ''
+  if (isClassicSignature(value)) return value.payload
+  if (isPasskeySignature(value)) return ''
+  return value
+}
+
+export function getSignatureAttribution(value: SignatureValue | '' | undefined | null): SignatureAttribution | null {
+  if (!value || typeof value === 'string') return null
+  if (isPasskeySignature(value) || isClassicSignature(value)) {
+    return { username: value.username, signedAt: value.signedAt }
+  }
+  return null
+}
+
+export function createClassicSignature(input: {
+  role: 'skipper' | 'crew'
+  userId: string
+  username: string
+  signedAt: string
+  payload: string
+}): ClassicSignature {
+  return {
+    kind: 'classic',
+    version: 1,
+    role: input.role,
+    userId: input.userId,
+    username: input.username,
+    signedAt: input.signedAt,
+    payload: input.payload
+  }
+}
+
 export function normalizeSignature(value: unknown): SignatureValue | undefined {
  if (value === null || value === undefined || value === '') return undefined
  if (isPasskeySignature(value)) return value
+  if (isClassicSignature(value)) return value
  if (typeof value === 'string') return value
  return undefined
 }
@@ -47,6 +95,7 @@ export async function getSkipperSignStatus(
 export interface SignatureExportLabels {
  imagePlaceholder: string
  passkeyLabel: (username: string, signedAt: string) => string
+  attributionLabel: (username: string, signedAt: string) => string
 }

 export function formatSignatureForExport(
@@ -57,15 +106,19 @@ export function formatSignatureForExport(
  if (isPasskeySignature(value)) {
    return labels.passkeyLabel(value.username, value.signedAt)
  }
+  if (isClassicSignature(value)) {
+    return labels.attributionLabel(value.username, value.signedAt)
+  }
  if (isSignatureImage(value)) return labels.imagePlaceholder
  return value
 }

 export function serializeSignature(value: SignatureValue | '' | undefined): SignatureValue | undefined {
  if (!value) return undefined
-  if (isPasskeySignature(value)) return value
-  if (isSignatureImage(value)) return value
-  const trimmed = value.trim()
+  if (isPasskeySignature(value) || isClassicSignature(value)) return value
+  const payload = typeof value === 'string' ? value : getSignaturePayload(value)
+  if (isSignatureImage(payload)) return payload
+  const trimmed = payload.trim()
  return trimmed || undefined
 }

@@ -21,5 +21,6 @@
    "erasableSyntaxOnly": true,
    "noFallthroughCasesInSwitch": true
  },
-  "include": ["src"]
+  "include": ["src"],
+  "exclude": ["src/**/*.test.ts"]
 }
@@ -1,3 +1,4 @@
+/// <reference types="vitest/config" />
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 import { VitePWA } from 'vite-plugin-pwa'
@@ -20,6 +21,10 @@ function readAppVersion(): string {

 // https://vite.dev/config/
 export default defineConfig({
+  test: {
+    environment: 'happy-dom',
+    include: ['src/**/*.test.ts']
+  },
  define: {
    __APP_VERSION__: JSON.stringify(readAppVersion())
  },
@@ -42,6 +47,9 @@ export default defineConfig({
      srcDir: 'src',
      filename: 'sw.ts',
      registerType: 'prompt',
+      devOptions: {
+        enabled: false
+      },
      includeAssets: ['favicon.ico', 'logo.png'],
      injectManifest: {
        globPatterns: ['**/*.{js,css,html,ico,png,svg,woff2,webmanifest}']
@@ -49,7 +57,9 @@ export default defineConfig({
      manifest: {
        name: 'Kapteins Daagbok',
        short_name: 'Daagbok',
-        description: 'Free, ad-free maritime logbook with E2E encryption and Passkeys',
+        lang: 'de',
+        description:
+          'Digitales Yacht-Logbuch — E2E-verschlüsselt, offline-fähig.',
        theme_color: '#1e293b',
        background_color: '#0f172a',
        display: 'standalone',
@@ -28,9 +28,11 @@
    .page {
      width: 210mm;
      height: 297mm;
-      padding: 14mm 16mm 12mm;
+      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%),
@@ -52,20 +54,20 @@
      display: flex;
      align-items: center;
      gap: 5mm;
-      margin-bottom: 6mm;
+      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    .logo {
-      width: 14mm;
-      height: 14mm;
+      width: 16mm;
+      height: 16mm;
      flex-shrink: 0;
      object-fit: contain;
    }

    .title-block h1 {
-      font-size: 22pt;
+      font-size: 23pt;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: #f8fafc;
@@ -73,7 +75,7 @@
    }

    .title-block p {
-      font-size: 10.5pt;
+      font-size: 12pt;
      color: #94a3b8;
      margin-top: 1.5mm;
    }
@@ -83,19 +85,19 @@
      align-self: flex-start;
      background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
      color: #1e293b;
-      font-size: 9pt;
+      font-size: 11pt;
      font-weight: 800;
      letter-spacing: 0.12em;
-      padding: 2mm 4mm;
+      padding: 2.5mm 4.5mm;
      border-radius: 2mm;
      text-transform: uppercase;
    }

    .intro {
-      font-size: 10.5pt;
-      line-height: 1.55;
+      font-size: 12pt;
+      line-height: 1.5;
      color: #cbd5e1;
-      margin-bottom: 6mm;
+      flex-shrink: 0;
      max-width: 95%;
      position: relative;
      z-index: 1;
@@ -105,11 +107,48 @@
      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: 3mm 6mm;
-      margin-bottom: 6mm;
+      gap: 2.5mm 6mm;
+      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }
@@ -118,7 +157,7 @@
      display: flex;
      gap: 2.5mm;
      align-items: flex-start;
-      font-size: 9.5pt;
+      font-size: 10.5pt;
      line-height: 1.4;
      color: #e2e8f0;
    }
@@ -130,26 +169,53 @@
      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;
-      margin-bottom: 6mm;
+      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    .beta-box h2 {
-      font-size: 11pt;
+      font-size: 12.5pt;
      color: #fbbf24;
      margin-bottom: 2mm;
      font-weight: 700;
    }

    .beta-box p {
-      font-size: 9.5pt;
+      font-size: 10.5pt;
      line-height: 1.5;
      color: #cbd5e1;
    }
@@ -157,12 +223,12 @@
    .cta {
      display: flex;
      align-items: center;
-      gap: 8mm;
+      gap: 7mm;
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(148, 163, 184, 0.2);
      border-radius: 4mm;
      padding: 5mm 6mm;
-      margin-bottom: auto;
+      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }
@@ -183,16 +249,16 @@
    }

    .cta-text h3 {
-      font-size: 13pt;
+      font-size: 14.5pt;
      color: #38bdf8;
      font-weight: 700;
      margin-bottom: 2mm;
    }

    .cta-text p {
-      font-size: 9pt;
+      font-size: 11pt;
      color: #94a3b8;
-      line-height: 1.45;
+      line-height: 1.5;
    }

    .tags {
@@ -203,7 +269,7 @@
    }

    .tag {
-      font-size: 7.5pt;
+      font-size: 9.5pt;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
@@ -216,8 +282,9 @@
    footer {
      border-top: 1px solid rgba(148, 163, 184, 0.15);
      padding-top: 3mm;
-      margin-top: 5mm;
-      font-size: 7.5pt;
+      margin-top: auto;
+      flex-shrink: 0;
+      font-size: 9.5pt;
      line-height: 1.5;
      color: #64748b;
      position: relative;
@@ -242,20 +309,42 @@
    </header>

    <p class="intro">
-      Führe dein Bordlogbuch digital: Reisetage, GPS-Tracks, Crew und Schiffsdaten —
-      <strong>End-to-End-verschlüsselt</strong>, als App installierbar und
+      Führe dein Bordlogbuch digital: Reisetage, GPS-Tracks, Crew- und Schiffsdaten —
+      <strong>Ende-zu-Ende-verschlüsselt</strong>, als App installierbar und
      <strong>auch offline</strong> auf See nutzbar.
    </p>

    <section class="features" aria-label="Funktionen">
-      <div class="feature"><span class="feature-icon">✦</span><span>Reisetage im nautischen Logbuch-Format (Hafen, Wetter, Tankstände)</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span>Offline-fähige PWA — installierbar auf Smartphone &amp; Tablet</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span>Passkey-Anmeldung &amp; clientseitige Verschlüsselung</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span>GPS-Tracks (GPX/KML), Karte &amp; Streckenstatistik</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Reisetage im nautischen Logbuch-Format (Hafen, Wetter, Besegelung, Crew, Tankstände)</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Offline-fähige PWA — läuft auf jedem Smartphone &amp; Tablet</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Einfache passwortlose Passkey-Anmeldung</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Ende-zu-Ende Verschlüsselung</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>GPS-Track Upload (GPX/KML) mit Kartendarstellung</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Streckenstatistik</span></div>
      <div class="feature"><span class="feature-icon">✦</span><span>Foto-Anhänge pro Reisetag</span></div>
+      <div class="feature"><span class="feature-icon">✦</span><span>Foto-Anhänge für Skipper und Crew</span></div>
      <div class="feature"><span class="feature-icon">✦</span><span>Crew einladen — gemeinsam am Logbuch arbeiten</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span>PDF- &amp; CSV-Export, verschlüsseltes Backup</span></div>
-      <div class="feature"><span class="feature-icon">✦</span><span>Mehrere Logbücher · Deutsch &amp; Englisch</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>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>Crafted in Kiel.Sailing.City.</span></div>
+    </section>
+
+    <section class="screenshots" aria-label="App-Screenshots">
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-login.png" alt="Anmeldung mit Passkey und Demo" />
+        <figcaption class="screenshot-caption">Anmeldung &amp; Passkey</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-logbook.png" alt="Logbuch-Journal mit Reisetagen" />
+        <figcaption class="screenshot-caption">Logbuch-Journal</figcaption>
+      </figure>
+      <figure class="screenshot-card">
+        <img src="assets/screenshot-vessel.png" alt="Schiffs-Stammdaten mit Yachtfoto" />
+        <figcaption class="screenshot-caption">Schiffsdaten</figcaption>
+      </figure>
    </section>

    <section class="beta-box">
@@ -0,0 +1,296 @@
+# Implementierungsplan: 360°-Kompass-Dial für Kursangaben
+
+**Status:** Implementiert (Branch `feat/compass-course-dial`)  
+**Bezug:** Ereignisprotokoll (`LogEntryEditor`), Felder MgK / rwK / Windrichtung  
+**Vorbild im Projekt:** `EventTimeInput24h` (spezialisierte Eingabe + Text-Fallback, keine API-Änderung)
+
+---
+
+## 1. Ziel und Nicht-Ziele
+
+### Ziel
+- Eingabe von Kurswinkeln (0°–360°) über einen **mobil tauglichen Kompass-Ring** (Drag/Tap).
+- **Hybrid-Eingabe:** Dial + numerisches Feld (wie bei der Uhrzeit).
+- Einheitliche Normalisierung (`000`–`360`, Speicherung als String ohne `°`).
+- Wiederverwendbare Komponente für **MgK**, **rwK** und optional **Wind** (Gradmodus).
+
+### Nicht-Ziele (v1)
+- Keine Änderung am Server-Schema oder Verschlüsselungsformat.
+- Keine Device-Orientation / echter Kompass des Geräts (optional Phase 2).
+- Kein Ersatz der Ablenkungstabelle (`DeviationForm`) – bleibt 10°-Raster.
+- Windrichtung bleibt **kompatibel** mit bestehenden Kardinalwerten (`N`, `NNE`, …) aus Wetter-API.
+
+---
+
+## 2. Ist-Analyse
+
+| Feld | Speicherformat | UI heute | Besonderheit |
+|------|----------------|----------|--------------|
+| `mgk` | String, z. B. `"042"` | Text `placeholder="e.g. 180"` | Grad, PDF/CSV mit `°` |
+| `rwk` | String, z. B. `"038"` | Text | Grad |
+| `windDirection` | String | Text | Oft **Kardinal** (`NW`) via OpenWeather; manuell auch Grad möglich |
+
+**Betroffene Dateien (Lesen/Schreiben, unverändert speichern):**
+- `client/src/components/LogEntryEditor.tsx` – Formular + Tabelle
+- `client/src/utils/logEntryPayload.ts` – `normalizeLogEvent`
+- `client/src/services/pdfExport.ts`, `csvExport.ts` – Export
+- `client/src/services/demoLogbookData.ts` – Demo-Daten
+
+**Referenz-Pattern:** `EventTimeInput24h.tsx` + `parseTimeToHHMM` / `joinTimeHHMM` in `logEntryPayload.ts`.
+
+---
+
+## 3. Architektur
+
+```
+client/src/utils/courseAngle.ts          # Parsing, Normalisierung, Winkel-Mathe
+client/src/components/CourseDialInput.tsx # UI: SVG-Ring + Zahleneingabe
+client/src/components/CourseDialField.tsx # Label + Fehler + Modus (optional)
+client/src/App.css                       # .course-dial-* Styles
+client/src/components/LogEntryEditor.tsx # Integration MgK/rwk/Wind
+client/src/i18n/locales/{de,en}.json     # Strings
+```
+
+### 3.1 Utility-Schicht `courseAngle.ts`
+
+| Funktion | Verhalten |
+|----------|-----------|
+| `parseCourseAngle(value)` | `"185"`, `"185°"`, `" 042 "` → `185` oder `null` |
+| `formatCourseAngle(degrees, pad?)` | `185` → `"185"` oder `"185"` / `"042"` (pad optional) |
+| `normalizeCourseAngleString(value)` | Parse oder Fallback; für `normalizeLogEvent` |
+| `pointerAngleToDegrees(clientX, clientY, cx, cy)` | `atan2`, 0° = Nord, Uhrzeigersinn maritim |
+| `degreesToCardinal(deg)` | 16-Sektoren (bestehende Logik aus Wetter-Import) |
+| `cardinalToDegrees(label)` | Reverse für Dial-Anzeige bei Kardinal-Strings |
+| `snapDegrees(deg, step)` | `step` 1, 5 oder 10 |
+
+**Konvention:** 0° = Nord, Winkel im Uhrzeigersinn (Kompass/Navigation), konsistent mit `wind.deg` in `LogEntryEditor`.
+
+### 3.2 Komponente `CourseDialInput`
+
+**Props:**
+```ts
+interface CourseDialInputProps {
+  value: string                    // roher Formularwert
+  onChange: (value: string) => void
+  disabled?: boolean
+  step?: 1 | 5 | 10                // Standard: 1
+  allowCardinal?: boolean          // Wind: true → Anzeige/Export Kardinal optional
+  displayMode?: 'degrees' | 'cardinal' | 'auto'
+  'aria-label': string
+  id?: string
+}
+```
+
+**UI-Aufbau:**
+1. **SVG-Ring** (ca. 200–240 px Desktop, min. 160 px Mobile)
+   - Gradmarken alle 30° (Labels 000, 030, … 330)
+   - Zeiger / Highlight-Bogen bei aktuellem Wert
+   - `touch-action: none` auf Ringfläche
+2. **Zentrum:** große Anzeige `185°` oder `NW`
+3. **Darunter:** `<input type="text" inputMode="numeric">` mit Validierung on blur
+4. **Fein/Grob-Toggle** (optional): 1° / 5° / 10° (lokal in `sessionStorage` merken)
+
+**Interaktion:**
+- `pointerdown` → `setPointerCapture` → `pointermove` → Winkel berechnen → snappen → `onChange`
+- Tap auf Ring: Winkel zum Tap-Punkt
+- Tastatur am Zahleneingang: Pfeiltasten ±step (wenn fokussiert)
+
+**Barrierefreiheit:**
+- `role="slider"`, `aria-valuemin={0}`, `aria-valuemax={360}`, `aria-valuenow`, `aria-label`
+- Zahleneingang bleibt voll bedienbar ohne Dial
+- Fokus-Reihenfolge: Input vor Dial oder umgekehrt (Input zuerst empfohlen)
+
+### 3.3 Windrichtung: Modus-Entscheidung
+
+**Empfehlung v1:** Zwei Darstellungsmodi, **ein Speicher-String**:
+
+| Modus | Speicher | Dial |
+|-------|----------|------|
+| Grad | `"225"` | Standard-Dial |
+| Kardinal | `"SW"` | Dial zeigt Sektor-Mitte (225°), Änderung schreibt Kardinal |
+
+- Wetter-Import (`handleFetchWeather`) setzt weiter Kardinal → Dial mappt auf Sektor.
+- Nutzer kann auf Grad umschalten (kleiner Link „Als Grad“ / Toggle).
+- `normalizeLogEvent`: erkennt Kardinal vs. Zahl, keine erzwungene Konvertierung beim Laden.
+
+---
+
+## 4. Integration `LogEntryEditor`
+
+### 4.1 Layout (mobil-first)
+
+**Problem:** Formular ist bereits dicht (`form-grid`).
+
+**Lösung:** Kurs-Block als **eigene Sektion** „Kurs“ mit Tabs:
+
+```
+[ MgK ] [ rwK ]     ← Tab-Leiste (Segmented Control)
+┌─────────────────────────┐
+│     CourseDialInput      │  ← ein Dial, Wert je Tab
+│     + Zahleneingang      │
+└─────────────────────────┘
+```
+
+- Ein Dial, State wechselt mit Tab (`activeCourseField: 'mgk' | 'rwk'`).
+- Spart Platz; MgK/rwk werden nacheinander gesetzt (typischer Workflow).
+
+**Windrichtung:** eigene Zeile unter Wetter-Grid; kompakter Dial (kleinere `size="sm"`) oder ausklappbar „Wind am Kompass setzen“.
+
+### 4.2 Ersetzungen
+
+| Alt | Neu |
+|-----|-----|
+| `<input>` MgK | `<CourseDialInput value={evMgk} … />` |
+| `<input>` rwK | Tab + gleicher Dial |
+| `<input>` Wind | `<CourseDialInput allowCardinal displayMode="auto" … />` |
+
+### 4.3 `normalizeLogEvent`
+
+```ts
+mgk: normalizeCourseAngleString(e.mgk, { allowEmpty: true }),
+rwk: normalizeCourseAngleString(e.rwk, { allowEmpty: true }),
+windDirection: normalizeWindDirectionString(e.windDirection), // Kardinal ODER Grad-String
+```
+
+Bestehende Demo- und Export-Daten bleiben gültig.
+
+---
+
+## 5. Styling (`App.css`)
+
+- `.course-dial` – Container, max-width, zentriert
+- `.course-dial__svg` – `width: 100%; aspect-ratio: 1`
+- `.course-dial__ring` – stroke, hover/active
+- `.course-dial__needle` – transform `rotate(${deg}deg)`
+- `.course-dial__value` – tabular-nums, große Schrift
+- `.course-dial__input` – wie `.time-input-24h`
+- `.course-dial-tabs` – Segmented Control (bestehende `--app-accent-*` Tokens)
+- **Responsive:** `@media (max-width: 640px)` – Dial max  min(72vw, 220px); Touch-Target Ring ≥ 44 px
+
+**Theme:** `currentColor` / CSS-Variablen (`--app-text`, `--app-accent-light`) – Dark/Light via `themes.css`.
+
+---
+
+## 6. Internationalisierung
+
+Neue Keys unter `logs.*`:
+
+| Key | DE | EN |
+|-----|----|----|
+| `course_dial_hint` | Am Ring drehen oder Grad eingeben | Drag the ring or enter degrees |
+| `course_step_fine` | 1° | 1° |
+| `course_step_medium` | 5° | 5° |
+| `course_step_coarse` | 10° | 10° |
+| `course_tab_mgk` | MgK | MgK |
+| `course_tab_rwk` | rwK | rwK |
+| `course_invalid` | Ungültiger Kurs (0–360) | Invalid course (0–360) |
+| `wind_mode_cardinal` | Kardinal | Cardinal |
+| `wind_mode_degrees` | Grad | Degrees |
+
+---
+
+## 7. Phasen und Aufwand
+
+### Phase A – Fundament (1–1,5 Tage)
+- [ ] `courseAngle.ts` + Unit-Tests (Vitest einrichten falls noch nicht vorhanden)
+- [ ] `CourseDialInput` (nur Grad, step 1/5, Pointer + Input)
+- [ ] CSS Grundlayout
+- [ ] Story/manuell: isoliert in kleiner Demo-Route oder Storybook (optional)
+
+**Akzeptanz:** Dial setzt 0–360, Input synchron, Mobile Chrome/Safari getestet.
+
+### Phase B – LogEntryEditor MgK/rwk (1 Tag)
+- [ ] Tab-UI MgK / rwK
+- [ ] Integration, `normalizeLogEvent`
+- [ ] Read-only: Dial disabled, Wert nur Anzeige
+
+**Akzeptanz:** Ereignis speichern/laden/PDF unverändert korrekt; Skipper-Signatur-Flow unberührt.
+
+### Phase C – Windrichtung (0,5–1 Tag)
+- [ ] `allowCardinal` / `displayMode`
+- [ ] Wetter-Import kompatibel
+- [ ] Toggle Kardinal ↔ Grad
+
+**Akzeptanz:** API-Wind `NW` zeigt Dial auf NW; manuelle Grad-Eingabe möglich.
+
+### Phase D – Polish (1–1,5 Tage)
+- [ ] Fein/Grob-Schritte + Persistenz
+- [ ] Tastatur (Pfeiltasten), Fokus-Stile
+- [ ] Reduzierte Bewegung (`prefers-reduced-motion`: nur Input, Dial statisch)
+- [ ] Plausible-Event optional: `Course Dial Used` (nur wenn Analytics gewünscht)
+- [ ] Dokumentation in `docs/plausible-events.md` falls Event
+
+### Phase E – QA & Edge Cases (0,5 Tag)
+- [ ] Leerer Wert, 360 → 0 oder 360 (festlegen: **360 als Eingabe → speichern `360` oder `000`** – Empfehlung: intern 0–359 speichern, Anzeige 360 = 0)
+- [ ] Sehr lange Formulare auf kleinen Screens (Scroll, kein Layout-Sprung)
+- [ ] Offline/PWA, kein Regression bei `buildLogEntryPayload` / Signatur-Hash
+
+**Gesamtaufwand:** ca. **4–5 Entwicklertage** für vollständige Implementierung inkl. Wind + A11y + QA.
+
+---
+
+## 8. Tests
+
+### Unit (`courseAngle.ts`)
+- Parse: `"042"`, `"360"`, `"999"` (invalid), `"NW"` (wind helper)
+- `pointerAngleToDegrees` mit festen Koordinaten
+- `snapDegrees(47, 5)` → 45
+- `degreesToCardinal` / `cardinalToDegrees` Roundtrip
+
+### Komponente (Testing Library)
+- `onChange` bei simuliertem Pointer-Event (oder direktem `setValue` via Input)
+- Disabled-State
+- `aria-valuenow` aktualisiert
+
+### Manuell / UAT
+| # | Schritt | Erwartung |
+|---|---------|-----------|
+| 1 | Neues Ereignis, MgK am Dial auf 090 | Tabelle zeigt `90°`, PDF/CSV `90` |
+| 2 | rwK per Tastatur `270` | Dial zeigt West |
+| 3 | Wetter laden | Wind `NW`, Dial passend |
+| 4 | iPhone Safari, Daumen-Drag | Kein Scroll-Leaken, Wert stabil |
+| 5 | Nur Tastatur | Input allein speicherbar |
+| 6 | Bestehenden Eintrag bearbeiten | Alte Werte korrekt im Dial |
+
+---
+
+## 9. Risiken und Mitigationen
+
+| Risiko | Mitigation |
+|--------|------------|
+| Dial zu groß auf Mobile | Tabs + max-width; Wind einklappbar |
+| Scroll vs. Drag | `touch-action: none` nur am Ring |
+| Kardinal/Grad-Inkonsistenz | `displayMode="auto"`, kein Silent-Overwrite |
+| Signatur-Hash ändert sich | Nur Normalisierung die bereits gültige Strings erlaubt; keine Rundung beim Speichern ohne Nutzeraktion |
+| Performance bei vielen Events | Dial nur im Formular, nicht in Tabelle |
+
+---
+
+## 10. Optionale Erweiterungen (Post-v1)
+
+1. **MgK → rwK aus Ablenkungstabelle** vorschlagen (Lookup `deviations[roundedMgK]`).
+2. **DeviceOrientation** für Ring-Ausrichtung (mit Permission-Hinweis).
+3. **Haptik** `navigator.vibrate(10)` bei Snap (Android).
+4. **DeviationForm:** visueller Kompass statt nur Grid (separate Story).
+
+---
+
+## 11. Abnahmekriterien (Definition of Done)
+
+- [ ] MgK und rwK im Ereignisformular per Dial + Input editierbar (Desktop + Mobile).
+- [ ] Windrichtung: Dial + Kardinal/Grad kompatibel mit Wetter-Import.
+- [ ] Keine Backend-/Migrations-Änderung; bestehende Logbücher laden unverändert.
+- [ ] PDF/CSV/Signatur-Verhalten identisch zu heute (nur Darstellung/Eingabe verbessert).
+- [ ] WCAG: Slider + Input bedienbar, `prefers-reduced-motion` berücksichtigt.
+- [ ] DE/EN vollständig übersetzt.
+
+---
+
+## 12. Empfohlene Umsetzungsreihenfolge (Commits)
+
+1. `feat(course): add courseAngle utilities and tests`
+2. `feat(course): add CourseDialInput component and styles`
+3. `feat(logs): integrate compass dial for MgK and rwK`
+4. `feat(logs): wind direction dial with cardinal support`
+5. `fix(logs): a11y and reduced-motion for course dial`
+6. `docs: compass course dial plan and plausible event` (optional)
@@ -29,6 +29,8 @@ Kapteins Daagbok nutzt [Plausible Analytics](https://plausible.io/) mit dem Scri
 | Demo Opened | Public-Demo unter `/demo` geöffnet (`DemoViewer.tsx`) | — |
 | Invite Generated | Einladungslink erzeugt (`SettingsForm.tsx`) | — |
 | Invite Accepted | Einladung angenommen und Logbuch beigetreten (`InvitationAcceptance.tsx`) | — |
+| Logbook Shared | Öffentlicher Freigabelink aktiviert (`SettingsForm.tsx`) | — |
+| Public Link Opened | Freigabelink unter `/share` erfolgreich geladen (`ReadOnlyViewer.tsx`) | — |
 | PDF Exported | PDF-Export eines Reisetags (`LogEntryEditor.tsx`, `LogEntriesList.tsx`) | `scope`: `entry` |
 | CSV Exported | CSV-Download aus der Eintragsliste (`LogEntriesList.tsx`) | — |
 | CSV Shared | CSV über Web Share API geteilt (`LogEntriesList.tsx`) | — |
@@ -38,12 +40,23 @@ Kapteins Daagbok nutzt [Plausible Analytics](https://plausible.io/) mit dem Scri
 | Push Enabled | Crew-Änderungs-Push aktiviert (`PushNotificationSettings.tsx`) | — |
 | Push Disabled | Crew-Änderungs-Push deaktiviert (`PushNotificationSettings.tsx`) | — |
 | Footer Link Clicked | Klick auf Autoren-Link im App-Footer (`AppFooter.tsx`) | — |
+| Profile Opened | Profilseite geöffnet (`UserProfilePage.tsx`, einmal pro Mount) | — |
+| Passkey Added | Passkey erfolgreich registriert (`UserProfilePage.tsx`) | `labeled`: `true` \| `false` (optionaler Name gesetzt) |
+| Passkey Removed | Passkey entfernt, mindestens ein Key verbleibt (`UserProfilePage.tsx`) | — |
+| Passkey Renamed | Passkey-Name gespeichert (`UserProfilePage.tsx`) | — |
+| Last Passkey Remove Hinted | Löschen des einzigen Passkeys abgebrochen — Hinweisdialog zur Kontolöschung (`UserProfilePage.tsx`) | — |
+| Local PIN Set | Lokaler PIN gesetzt oder geändert (`UserProfilePage.tsx`) | `action`: `set` \| `change` |
+| 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`) | — |

 ## Bewusst nicht getrackt

 - **Demo-Logbuch:** Beim automatischen Seed (`demoLogbook.ts`) werden keine Events ausgelöst — nur echte Nutzeraktionen zählen.
 - **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).
+- **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)

@@ -52,8 +65,10 @@ Empfohlene Goal-Ketten für Auswertung:
 1. **Aktivierung:** Account Created → Logbook Created → Travel Day Created → Travel Day Saved
 2. **Onboarding:** Account Created → Onboarding Tour Completed (vs. Onboarding Tour Skipped)
 3. **Kollaboration:** Invite Generated → Invite Accepted
-4. **Export:** Travel Day Saved → PDF Exported / CSV Exported
-5. **Datensicherung:** Backup Exported → Backup Restored
+4. **Öffentliche Freigabe:** Logbook Shared → Public Link Opened
+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)

 ## Entwicklung

@@ -52,6 +52,7 @@ model Credential {
  id           String   @id @default(uuid())
  userId       String
  credentialId String   @unique
+  label        String?
  publicKey    Bytes
  counter      BigInt
  transports   String[] // WebAuthn transports list
@@ -22,8 +22,22 @@ const rpID = process.env.RP_ID || 'localhost'
 const origin = process.env.ORIGIN || 'http://localhost:5173'

 const registrationChallenges = new Map<string, string>()
+/** WebAuthn registration challenges for add-credential flow: challenge -> userId */
+const addCredentialChallenges = new Map<string, string>()
 const activeChallenges = new Set<string>()

+function previewCredentialId(credentialId: string): string {
+  if (credentialId.length <= 16) return credentialId
+  return `${credentialId.slice(0, 8)}…${credentialId.slice(-8)}`
+}
+
+function normalizeCredentialLabel(label: unknown): string | null {
+  if (typeof label !== 'string') return null
+  const trimmed = label.trim()
+  if (!trimmed) return null
+  return trimmed.slice(0, 64)
+}
+
 router.post('/register-options', async (req, res) => {
  try {
    const { username } = req.body
@@ -381,4 +395,259 @@ router.post('/enroll-prf', requireReauth, async (req: any, res) => {
  }
 })

+router.post('/rotate-recovery', requireReauth, async (req: any, res) => {
+  try {
+    const { encryptedMasterKeyRec, encryptedMasterKeyRecIv, encryptedMasterKeyRecTag } = req.body
+    if (!encryptedMasterKeyRec || !encryptedMasterKeyRecIv || !encryptedMasterKeyRecTag) {
+      return res.status(400).json({ error: 'Missing required recovery key fields' })
+    }
+
+    if (
+      typeof encryptedMasterKeyRec !== 'string' ||
+      typeof encryptedMasterKeyRecIv !== 'string' ||
+      typeof encryptedMasterKeyRecTag !== 'string'
+    ) {
+      return res.status(400).json({ error: 'Invalid recovery key fields format' })
+    }
+
+    await prisma.user.update({
+      where: { id: req.userId },
+      data: {
+        encryptedMasterKeyRec,
+        encryptedMasterKeyRecIv,
+        encryptedMasterKeyRecTag
+      }
+    })
+
+    return res.json({ success: true })
+  } catch (error: any) {
+    console.error('Error rotating recovery key:', 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({
+      where: { id: req.userId },
+      include: {
+        credentials: {
+          orderBy: { id: 'asc' }
+        },
+        _count: {
+          select: {
+            logbooks: true,
+            collaborations: true
+          }
+        }
+      }
+    })
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' })
+    }
+
+    return res.json({
+      userId: user.id,
+      username: user.username,
+      createdAt: user.createdAt.toISOString(),
+      hasPrfEncryption: user.encryptedMasterKeyPrf != null,
+      credentials: user.credentials.map((cred) => ({
+        id: cred.id,
+        label: cred.label,
+        credentialIdPreview: previewCredentialId(cred.credentialId),
+        transports: cred.transports
+      })),
+      serverMeta: {
+        ownedLogbookCount: user._count.logbooks,
+        collaborationCount: user._count.collaborations
+      }
+    })
+  } catch (error: any) {
+    console.error('Error fetching user profile:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
+router.post('/add-credential-options', requireReauth, async (req: any, res) => {
+  try {
+    const user = await prisma.user.findUnique({
+      where: { id: req.userId },
+      include: { credentials: true }
+    })
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' })
+    }
+
+    const userID = Buffer.from(user.username, 'utf8').toString('base64url')
+    const excludeCredentials = user.credentials.map((cred) => ({
+      id: Buffer.from(cred.credentialId, 'base64url'),
+      type: 'public-key' as const,
+      transports: cred.transports as any[]
+    }))
+
+    const options = await generateRegistrationOptions({
+      rpName,
+      rpID,
+      userID,
+      userName: user.username,
+      userDisplayName: user.username,
+      attestationType: 'none',
+      authenticatorSelection: {
+        residentKey: 'required',
+        userVerification: 'preferred'
+      },
+      supportedAlgorithmIDs: [-7, -257],
+      excludeCredentials
+    })
+
+    addCredentialChallenges.set(options.challenge, req.userId)
+
+    return res.json(options)
+  } catch (error: any) {
+    console.error('Error generating add-credential options:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
+router.post('/add-credential-verify', requireReauth, async (req: any, res) => {
+  try {
+    const { credentialResponse, challenge } = req.body
+    if (!credentialResponse || !challenge) {
+      return res.status(400).json({ error: 'credentialResponse and challenge are required' })
+    }
+
+    const label = normalizeCredentialLabel(req.body.label)
+
+    const challengeUserId = addCredentialChallenges.get(challenge)
+    if (!challengeUserId) {
+      return res.status(400).json({ error: 'Challenge not found or expired' })
+    }
+
+    if (challengeUserId !== req.userId) {
+      return res.status(403).json({ error: 'Challenge does not belong to this account' })
+    }
+
+    // Single-use: invalidate before verification so failed attempts cannot be retried
+    addCredentialChallenges.delete(challenge)
+
+    const user = await prisma.user.findUnique({
+      where: { id: req.userId }
+    })
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' })
+    }
+
+    const verification = await verifyRegistrationResponse({
+      response: credentialResponse,
+      expectedChallenge: challenge,
+      expectedOrigin: origin,
+      expectedRPID: rpID
+    })
+
+    if (!verification.verified || !verification.registrationInfo) {
+      return res.status(400).json({ error: 'WebAuthn verification failed' })
+    }
+
+    const { credentialID, credentialPublicKey, counter } = verification.registrationInfo
+    const credentialId = Buffer.from(credentialID).toString('base64url')
+
+    const existing = await prisma.credential.findUnique({
+      where: { credentialId }
+    })
+    if (existing) {
+      return res.status(400).json({ error: 'Credential already registered' })
+    }
+
+    const credential = await prisma.credential.create({
+      data: {
+        userId: req.userId,
+        credentialId,
+        label,
+        publicKey: Buffer.from(credentialPublicKey),
+        counter: BigInt(counter),
+        transports: credentialResponse.response.transports || []
+      }
+    })
+
+    return res.json({
+      verified: true,
+      credential: {
+        id: credential.id,
+        label: credential.label,
+        credentialIdPreview: previewCredentialId(credential.credentialId),
+        transports: credential.transports
+      }
+    })
+  } catch (error: any) {
+    console.error('Error verifying add-credential response:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
+router.patch('/credentials/:id', requireReauth, async (req: any, res) => {
+  try {
+    const { id } = req.params
+    const label = normalizeCredentialLabel(req.body?.label)
+
+    const credential = await prisma.credential.findUnique({
+      where: { id }
+    })
+
+    if (!credential || credential.userId !== req.userId) {
+      return res.status(404).json({ error: 'Credential not found' })
+    }
+
+    const updated = await prisma.credential.update({
+      where: { id },
+      data: { label }
+    })
+
+    return res.json({
+      credential: {
+        id: updated.id,
+        label: updated.label,
+        credentialIdPreview: previewCredentialId(updated.credentialId),
+        transports: updated.transports
+      }
+    })
+  } catch (error: any) {
+    console.error('Error updating credential label:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
+router.delete('/credentials/:id', requireReauth, async (req: any, res) => {
+  try {
+    const { id } = req.params
+
+    const credential = await prisma.credential.findUnique({
+      where: { id }
+    })
+
+    if (!credential || credential.userId !== req.userId) {
+      return res.status(404).json({ error: 'Credential not found' })
+    }
+
+    const credentialCount = await prisma.credential.count({
+      where: { userId: req.userId }
+    })
+
+    if (credentialCount <= 1) {
+      return res.status(400).json({ error: 'Cannot remove the last passkey' })
+    }
+
+    await prisma.credential.delete({
+      where: { id }
+    })
+
+    return res.json({ success: true })
+  } catch (error: any) {
+    console.error('Error deleting credential:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
 export default router
@@ -131,4 +131,41 @@ router.delete('/:id', async (req: any, res) => {
  }
 })

+// 5. Update a logbook title
+router.put('/:id', async (req: any, res) => {
+  try {
+    const { id } = req.params
+    const { encryptedTitle } = req.body
+
+    if (!encryptedTitle) {
+      return res.status(400).json({ error: 'encryptedTitle is required' })
+    }
+
+    const logbook = await prisma.logbook.findUnique({
+      where: { id }
+    })
+
+    if (!logbook) {
+      return res.status(404).json({ error: 'Logbook not found' })
+    }
+
+    if (logbook.userId !== req.userId) {
+      return res.status(403).json({ error: 'Forbidden: Access denied' })
+    }
+
+    const updatedLogbook = await prisma.logbook.update({
+      where: { id },
+      data: {
+        encryptedTitle,
+        updatedAt: new Date()
+      }
+    })
+
+    return res.json(updatedLogbook)
+  } catch (error: any) {
+    console.error('Error updating logbook:', error)
+    return res.status(500).json({ error: error.message || 'Internal server error' })
+  }
+})
+
 export default router
@@ -57,6 +57,13 @@ function hasWriteAccess(access: { isOwner: boolean; collaboration?: { role: stri
  return access.isOwner || access.collaboration?.role === 'WRITE'
 }

+async function hasWriteCollaborators(logbookId: string): Promise<boolean> {
+  const count = await prisma.collaboration.count({
+    where: { logbookId, role: 'WRITE' }
+  })
+  return count > 0
+}
+
 async function getAllowCredentialsForRole(
  logbookId: string,
  role: 'skipper' | 'crew',
@@ -79,7 +86,16 @@ async function getAllowCredentialsForRole(
  })

  const userIds = collaborations.map((c) => c.userId)
-  if (userIds.length === 0) return []
+  if (userIds.length === 0) {
+    const credentials = await prisma.credential.findMany({
+      where: { userId: requestingUserId }
+    })
+    return credentials.map((cred) => ({
+      id: Buffer.from(cred.credentialId, 'base64url'),
+      type: 'public-key' as const,
+      transports: cred.transports as any[]
+    }))
+  }

  const credentials = await prisma.credential.findMany({
    where: { userId: { in: userIds } }
@@ -99,14 +115,7 @@ async function isAuthorizedSigner(
  role: 'skipper' | 'crew'
 ): Promise<boolean> {
  if (role === 'skipper') {
-    // Skipper signing: owner or WRITE collaborator (design §2.1), using their own passkey.
-    if (signerUserId === ownerUserId) return true
-    const collaboration = await prisma.collaboration.findUnique({
-      where: {
-        logbookId_userId: { logbookId, userId: signerUserId }
-      }
-    })
-    return collaboration?.role === 'WRITE'
+    return signerUserId === ownerUserId
  }

  const collaboration = await prisma.collaboration.findUnique({
@@ -114,7 +123,13 @@ async function isAuthorizedSigner(
      logbookId_userId: { logbookId, userId: signerUserId }
    }
  })
-  return collaboration?.role === 'WRITE'
+  if (collaboration?.role === 'WRITE') return true
+
+  if (signerUserId === ownerUserId) {
+    return !(await hasWriteCollaborators(logbookId))
+  }
+
+  return false
 }

 router.post('/options', async (req: any, res) => {
@@ -138,6 +153,16 @@ router.post('/options', async (req: any, res) => {
      return res.status(403).json({ error: 'Forbidden: WRITE access required to sign entries' })
    }

+    const authorized = await isAuthorizedSigner(
+      logbookId,
+      access.logbook.userId,
+      req.userId,
+      role
+    )
+    if (!authorized) {
+      return res.status(403).json({ error: 'Forbidden: Signer not authorized for this role' })
+    }
+
    const allowCredentials = await getAllowCredentialsForRole(
      logbookId,
      role,
@@ -146,9 +171,7 @@ router.post('/options', async (req: any, res) => {

    if (allowCredentials.length === 0) {
      return res.status(400).json({
-        error: role === 'crew'
-          ? 'No write collaborators with passkeys found'
-          : 'No passkey credentials found for signer'
+        error: 'No passkey credentials found for signer'
      })
    }

@@ -46,7 +46,7 @@ router.post('/push', async (req: any, res) => {
        // Authorize: Check if logbook belongs to user
        // Exception: If action is create logbook, the logbook might not exist yet,
        // so we authorize based on user creating a logbook with their userId.
-        if (type === 'logbook' && action === 'create') {
+        if (type === 'logbook' && (action === 'create' || action === 'update')) {
          const existing = await prisma.logbook.findUnique({
            where: { id: logbookId }
          })
@@ -69,9 +69,9 @@ router.post('/push', async (req: any, res) => {
            },
            update: {
              encryptedTitle: parsed.encryptedTitle,
-              encryptedKey: parsed.encryptedKey || null,
-              iv: parsed.iv || null,
-              tag: parsed.tag || null,
+              ...(parsed.encryptedKey !== undefined ? { encryptedKey: parsed.encryptedKey } : {}),
+              ...(parsed.iv !== undefined ? { iv: parsed.iv } : {}),
+              ...(parsed.tag !== undefined ? { tag: parsed.tag } : {}),
              updatedAt: itemUpdatedAt
            }
          })
@@ -121,6 +121,17 @@ router.post('/push', async (req: any, res) => {
          continue
        }

+        if (!isOwner && (type === 'yacht' || (type === 'crew' && payloadId === 'skipper'))) {
+          results.push({
+            payloadId,
+            status: 'error',
+            error: type === 'yacht'
+              ? 'Forbidden: Only owner can modify vessel data'
+              : 'Forbidden: Only owner can modify skipper profile'
+          })
+          continue
+        }
+
        if (action === 'delete') {
          if (type === 'yacht') {
            await prisma.yachtPayload.deleteMany({ where: { logbookId } })
Author	SHA1	Message	Date
elpatron	f12b9b2a1a	chore: release v0.1.0.51	2026-05-31 11:52:20 +02:00
elpatron	34914b4f19	fix(ui): Segel-Picker-Layout und Formular-Reset korrigieren Flex-Layout für Pills und Toggle wiederherstellen und den Einklapp-Zustand beim Leeren des Ereignisformulars zurücksetzen. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:52:10 +02:00
elpatron	d9fa8c0edf	chore: release v0.1.0.50	2026-05-31 11:50:39 +02:00
elpatron	adf02acd45	fix(ui): Segel-Picker auf Mobile weiter verdichten Einklappbare Badge-Liste bei vielen Segeln, kompaktere Pills und aktive Auswahl bleibt oben sichtbar. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:50:23 +02:00
elpatron	3992db9d61	fix(ui): Besegelungs-Badges auf Mobile platzsparender anordnen Die Segel-Pills nutzen die volle Formularbreite und wrappen kompakt, statt in der halben Grid-Spalte untereinander zu stapeln. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:48:30 +02:00
elpatron	51f6a1b291	chore: release v0.1.0.49	2026-05-31 11:42:37 +02:00
elpatron	0b07d8b3d3	feat(auth): Hilfe-Button auf Login öffnet Hinweise-Modal Ersetzt den toten #help-Link durch einen Button, der dasselbe Hinweise- und Haftungsausschluss-Modal wie in der App anzeigt. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:42:28 +02:00
elpatron	a07e033e62	copy(i18n): Login-Tagline persönlicher formulieren „Dein sicheres …“ statt „Sicheres …“ auf der Anmeldeseite. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:40:06 +02:00
elpatron	bbe63dfb47	chore: release v0.1.0.48	2026-05-31 11:38:03 +02:00
elpatron	57f63ad486	fix(auth): Session-Restore erst mit vollständiger lokaler Session Stellt hasUnlockedLocalSession für UI-Wiederherstellung und enforceUnlockedSession wieder her; persistSessionUserId setzt userId nur bei Angabe in der Server-Antwort. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:37:50 +02:00
elpatron	728c40f936	chore: release v0.1.0.47	2026-05-31 11:35:51 +02:00
elpatron	72cbad8d5e	fix(auth): Session-Wiederherstellung nicht an active_userid koppeln Trennt hasUnlockedLocalCrypto (Master-Key + Username) von hasUnlockedLocalSession (+ userId für API), damit ein gültiges Server-Cookie ohne userId in der Antwort keinen fälschlichen Logout auslöst. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:35:17 +02:00
elpatron	15f2172a38	fix: ungenutzten getActiveMasterKey-Import entfernen Behebt TS6133 und schlägt fehlenden Docker-Frontend-Build wieder frei. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:34:01 +02:00
elpatron	e2e038f2d6	chore: release v0.1.0.46	2026-05-31 11:30:47 +02:00
elpatron	634eb622fd	fix(pwa): weiße Seite nach Android-Neustart ohne Master-Key vermeiden Erzwingt Login wenn nur die HTTP-Session übrig ist, begrenzt SW-Reloads, fängt Bootstrap-/Render-Fehler ab und stabilisiert den PWA-Kaltstart. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:30:37 +02:00
elpatron	04b822b263	fix(logs): Wind- und Kurs-Dial auf gleiche Größe bringen Der Wind-Dial nutzte size="sm" (220px), der Kurs-Dial md (260px). Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:26:56 +02:00
elpatron	ee60d5fda3	fix(dev): veralteten PWA-Cache bereinigen, damit i18n-Labels laden Stale Service-Worker-Precache konnte Vite-Module und Locale-Bundles überlagern, sodass Kompass-Dial-Texte als Roh-i18n-Keys erschienen. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:25:10 +02:00
elpatron	3a7d244433	fix(logs): Kompass-Dial-Locales und UI-Labels vervollständigen Ergänzt fehlende i18n-Keys (Himmelsrichtungen, Platzhalter, Schrittweite) und zeigt Validierungsfehler im Kurs-Dial. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:12:43 +02:00
elpatron	9e03fcda0a	feat(logs): Kompass-Dial für Kurs- und Windeingabe Ersetzt Textfelder für MgK, rwK und Wind durch einen mobilen Kompass-Ring, normalisiert Kurswinkel beim Speichern und führt Vitest mit Regressionstests für html lang ein. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:08:36 +02:00
elpatron	34c7d2d65c	fix(logs): 24h-Uhrzeit per Dropdown und konsistentes html lang Ersetzt natives type=time (AM/PM je nach System) durch Stunde/Minute-Auswahl, wandelt 12h-Werte beim Laden um und stellt html lang auf de/en zurück. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 11:01:03 +02:00
elpatron	658bc6c0c9	feat(logs): Ereignis-Uhrzeit vorbelegen und 24h-Format vereinheitlichen Neue Ereignisse starten mit der aktuellen Uhrzeit; Datums-/Zeitanzeigen und Zeit-Picker nutzen durchgängig das 24-Stunden-Format. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 10:57:47 +02:00
elpatron	dee2f7b95b	chore: release v0.1.0.45	2026-05-31 10:50:13 +02:00
elpatron	4eaf5d7f30	fix(dashboard): Löschbutton und Badge auf Logbuch-Karten trennen Aktions-Spalte im Flex-Layout statt absoluter Positionierung, mit responsivem Stacking auf schmalen Viewports. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 10:49:55 +02:00
elpatron	257bca14d1	feat(dashboard): Logbuch-Titel per Inline-Bearbeitung umbenennen Ersetzt Umbenennen-Button und Modal durch Klick auf den Kartentitel. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 10:48:22 +02:00
elpatron	917fb92d85	feat: add logbook title editing with E2E encryption and sync support	2026-05-31 10:45:36 +02:00
elpatron	b48b31580d	chore: release v0.1.0.44	2026-05-31 10:08:13 +02:00
elpatron	7f0223c636	fix(profile): Abbrechen-Text im Recovery-Rotations-Dialog Verwendet recovery_rotate_confirm_no statt remove_passkey_confirm_no. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 10:01:30 +02:00
elpatron	68af8c6361	fix(profile): Reauth für Passkey-Umbenennung und Geräte-Dialog PATCH /credentials verlangt requireReauth wie add/delete; Client ruft reauthWithPasskey vor rename auf. Abbrechen-Text beim Gerät vergessen korrigiert. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:59:44 +02:00
elpatron	ad7e036ab7	feat(profile): Wiederherstellungsschlüssel rotieren Neuer Recovery-Code über Profilseite mit Passkey-Reauth, Anzeige der 12 Wörter und API-Endpoint rotate-recovery; Plausible-Event dokumentiert. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:58:21 +02:00
elpatron	12c02f6392	fix(profile): eigene Fehlermeldung beim Passkey-Umbenennen Verwendet profile.passkey_rename_failed statt add_passkey_failed, damit Fehler beim Umbenennen nicht fälschlich als Hinzufügen angezeigt werden. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:50:16 +02:00
elpatron	3698c6fbca	feat(analytics): Plausible-Events für Profilseite Trackt Profilaufruf, Passkey-/PIN-Aktionen und Gerät vergessen; Dokumentation in docs/plausible-events.md ergänzt. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:47:12 +02:00
elpatron	d4538ec06e	feat(profile): Passkey-Labels, Sicherheits-Checkliste und Geräte-Block Erweitert die Profilseite um benennbare Passkeys, Sicherheitsübersicht, Gerät/Sync-Status, Backup-Hinweis in der Gefahrenzone und Dialog beim Löschen des letzten Passkeys. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:43:28 +02:00
elpatron	86cb4d92ec	fix(profile): Logbuch-KPI und Statistik-Fallback robuster laden Profil bleibt bei fehlenden Client-Stats sichtbar; logbookCount nutzt lokale logbooks.length mit Server-Fallback statt totem ?? in ungerenderter Sektion. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:30:58 +02:00
elpatron	b72b20b66c	fix(dashboard): Profil-Button an btn-icon-Stil angleichen Nutzt dieselbe 36px-Höhe, Farben und Hover wie die übrigen Header-Buttons; auf Mobile nur Icon in Kreisform. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:27:21 +02:00
elpatron	6ad75ff947	fix(auth): Add-credential-Challenges pro Versuch und single-use Speichert Challenges nach challenge statt userId für parallele Flows und invalidiert sie vor der Verifikation, damit fehlgeschlagene Versuche keine Leaks hinterlassen. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:25:02 +02:00
elpatron	75eba362d6	fix(profile): Linksbündiges Layout der Profilseite Überschreibt die zentrierte #root-Textausrichtung für Identität, PIN-Formular und Header, damit Labels und Werte konsistent ausgerichtet sind. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:24:20 +02:00
elpatron	afc5a1e200	feat(profile): Benutzerprofilseite mit Passkeys, PIN und Statistiken Zentralisiert Account-Verwaltung vom Dashboard aus: Identität, Passkey-CRUD, lokaler PIN und KPIs; Kontolöschung wandert ausschließlich in die Profilseite. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-31 09:19:56 +02:00
elpatron	79a54fdfc2	chore: release v0.1.0.43	2026-05-30 20:56:13 +02:00
elpatron	e73c078463	fix(seo): replaceState nur bei abweichendem lng und Manifest auf Deutsch Vermeidet unnötige History-Änderungen beim Seitenaufbau und stellt die PWA-Beschreibung konsistent zu lang: 'de' bereit. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:55:14 +02:00
elpatron	2eb6551200	chore: release v0.1.0.42	2026-05-30 20:53:29 +02:00
elpatron	9baaccf239	feat(settings): Warnhinweis zum privaten Teilen des Logbuch-Links Nutzer sollen den Share-Link nur privat teilen, nicht in sozialen Medien. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:52:57 +02:00
elpatron	df53420f3b	feat(seo): Zweisprachige Meta-Tags und hreflang für DE/EN SEO-Texte in i18n, dynamische Meta-Updates beim Sprachwechsel, hreflang-Links und ?lng-Parameter; PWA-Manifest zweisprachig. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:52:39 +02:00
elpatron	5271ed90c1	fix(marketing): Union-Jack-ClipPath im Beta-Flyer wiederherstellen Der vorherige Fix hatte den SVG-Pfad durch fragmentierte Subpaths ersetzt; korrekter Pfad und PDF neu generiert. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:48:20 +02:00
elpatron	a8ba998444	fix(marketing): Ungültigen Union-Jack-ClipPath im Beta-Flyer korrigieren Der SVG-Pfad für die roten Diagonalen war syntaktisch fehlerhaft; PDF neu generiert. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:44:40 +02:00
elpatron	67d169080e	docs(marketing): Landesflaggen für DE/EN im Beta-Flyer Deutsch- und Englisch-Hinweis mit Inline-SVG-Flaggen und aktualisiertem PDF. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 20:39:44 +02:00
elpatron	c67c1425df	chore: release v0.1.0.41	2026-05-30 19:32:37 +02:00
elpatron	d231a7fb40	feat(logs): Maschinenstunden pro Reisetag und Verbrauch pro Stunde Maschinenstunden sind im Journal erfassbar; der Kraftstoffverbrauch pro Maschinenstunde wird aus Tagesverbrauch und Maschinenstunden berechnet und in Journal sowie Statistik als Read-only angezeigt. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:29:38 +02:00
elpatron	4acb9b1290	fix(logs): Crew-Unterschrift mit Benutzerzuordnung und Owner-Crew-Signatur Klassische Crew-Signaturen speichern Unterzeichner und Datum; Export und UI zeigen die Zuordnung. Eigner ohne WRITE-Collaborators dürfen wieder als Crew per Passkey signieren. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:24:46 +02:00
elpatron	4484724d38	fix(logs): Skipper- und Crew-Unterschrift rollenbasiert trennen Jede Rolle darf nur das eigene Signaturfeld bearbeiten; Passkey-Freigabe auf dem Server entsprechend eingeschränkt. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:21:51 +02:00
elpatron	5ea5111ec3	fix(auth): Schiffsdaten und Skipper-Profil nur für Logbuch-Eigner Eingeladene Crew (WRITE) sieht Schiffsdaten und Skipper-Profil schreibgeschützt; Server-Sync lehnt entsprechende Änderungen ab. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:17:45 +02:00
elpatron	7ab0ec6061	fix(logs): Ereignis-Bearbeitung sichern und Warnung bei ungespeicherten Änderungen Normalisiert partielle Logbuch-Events beim Speichern (z. B. Besegelung) und warnt beim Verlassen von Editor, Tabs und Browser. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:15:49 +02:00
elpatron	258fee31ab	fix(logs): Ereignisprotokoll chronologisch nach Uhrzeit sortieren Einträge werden beim Laden, Speichern und Export älteste-oben angezeigt (sortLogEventsByTime). Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 19:05:46 +02:00
elpatron	2e83f1c6bb	fix(logs): Galerie-Upload für Foto-Anhänge auf Mobilgeräten ermöglichen Entfernt capture="environment", damit Nutzer neben der Kamera auch Bilder aus der Gerätegalerie wählen können. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 18:59:48 +02:00
elpatron	fcb76d1305	docs(marketing): Update beta flyer layout and content Modified the screenshot layout to a three-column grid with adjusted gaps, reduced screenshot height for better fit, and refined feature descriptions for clarity. Added a new screenshot for vessel data. Updated the corresponding PDF to reflect these changes.	2026-05-30 18:22:09 +02:00
elpatron	7d96bbcfd8	docs(marketing): Beta-Flyer mit App-Screenshots und größerer Typografie Zwei Screenshots nebeneinander, Schriftgrößen für bessere Seitennutzung auf A4. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 17:22:52 +02:00
elpatron	a586fcbfba	fix(ui): autocomplete und Formulare für Passwort-Felder PIN, Backup-Export/Import und API-Key entsprechen Chrome-DOM-Empfehlungen. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 16:36:38 +02:00
elpatron	0ed9ac6941	chore: release v0.1.0.40	2026-05-30 16:31:10 +02:00
elpatron	b4fff04ee1	docs(marketing): Beta-Flyer-PDF neu generieren Aktualisierte PDF-Version aus dem überarbeiteten HTML-Flyer. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 16:30:55 +02:00
elpatron	7e01106801	fix(ui): Mobile-Layout für Tour, Header, Toolbars und Dialoge Onboarding-Tooltip bleibt im Viewport; PWA-Banner während Tour aus. Kopfzeilen, Listen-Toolbars, Link-Zeilen und Modals für iPhone optimiert. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 16:30:33 +02:00
elpatron	caf6e395cd	docs(marketing): Revise beta flyer feature descriptions for clarity and detail Updated the feature descriptions to enhance clarity, including separating passwordless login and end-to-end encryption, and specifying GPS track upload with map representation. Added new feature for photo attachments for skipper and crew. Updated the corresponding PDF to reflect these changes.	2026-05-30 15:17:43 +02:00
elpatron	a67575f4d2	chore: release v0.1.0.39	2026-05-30 15:10:26 +02:00
elpatron	c2d620025e	feat(ui): Beta-Badge in Login-, Dashboard- und Logbuch-Titelzeile Wiederverwendbare BetaBadge-Komponente mit i18n-Tooltip. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 15:10:11 +02:00
elpatron	1524321afd	docs(marketing): Update beta flyer feature description for passwordless login Revised the feature description to specify "Passwortlose Passkey-Anmeldung" instead of "Passkey-Anmeldung" for clarity. Updated the corresponding PDF to reflect this change.	2026-05-30 14:58:40 +02:00
elpatron	ab8a188fa0	chore: release v0.1.0.38	2026-05-30 14:49:49 +02:00
elpatron	bb98af040e	feat(analytics): Plausible-Events für öffentliche Logbuch-Freigabe Trackt Aktivierung des Freigabelinks und erfolgreiches Öffnen unter /share. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 14:49:19 +02:00
elpatron	333c36db21	docs(marketing): Correct typo in beta flyer feature description Updated the description in the beta flyer to correct the phrase "Crew und Schiffsdaten" to "Crew- und Schiffsdaten" for grammatical accuracy.	2026-05-30 14:36:31 +02:00
elpatron	3bd1970c59	docs(marketing): Update GPS feature description in beta flyer Revised the GPS feature description from "GPS-Tracks" to "GPS-Track Upload" for improved clarity. Updated the corresponding PDF to reflect this change.	2026-05-30 14:35:58 +02:00
elpatron	75c1369c75	docs(marketing): Split PDF & CSV export and encryption features for clarity Updated the beta flyer to separate the PDF & CSV export feature from the encrypted backup and recovery feature, enhancing clarity in the feature list.	2026-05-30 14:35:07 +02:00
elpatron	9ce1e384b7	docs(marketing): Update beta flyer feature list for improved detail Enhanced the feature description to include 'Crew' in the nautical logbook format. Updated the PDF to reflect these changes.	2026-05-30 14:32:28 +02:00
elpatron	3eee42a30c	docs(marketing): Beta-Flyer Feature-Liste erweitern Neue Punkte für Teilen, mehrere Logbücher, Sprachen und Kiel-Herkunft; PDF neu erzeugt. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-30 14:31:52 +02:00
elpatron	90ffff0da6	fix(beta-flyer): update feature descriptions for clarity and accuracy Revised the descriptions of offline capabilities and encryption methods in the beta flyer to enhance clarity. The PWA is now described as functioning on any smartphone and tablet, and the encryption method is specified as end-to-end.	2026-05-30 14:23:58 +02:00
@@ -1 +1 @@
 .1.0.38
 .1.0.52