fix(ui): Vite-Template-CSS entfernen und App-Layout wieder zentrieren

index.css auf App-Shell reduziert, App.css zentral in main.tsx geladen
und #root zentriert Dashboard/Logbuch-Ansichten nach dem Login.

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

client/src/App.tsx

@@ -1,5 +1,4 @@
 import { useState, useEffect, useCallback, useRef } from 'react'
-import './App.css'
 import { DialogProvider } from './components/ModalDialog.tsx'
 import AuthOnboarding from './components/AuthOnboarding.tsx'
 import UserProfilePage from './components/UserProfilePage.tsx'

client/src/index.css

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

client/src/main.tsx

@@ -3,6 +3,7 @@ import { createRoot } from 'react-dom/client'
 import 'leaflet/dist/leaflet.css'
 import './themes.css'
 import './index.css'
+import './App.css'
 import './i18n'
 import App from './App.tsx'
 import { applyAppearanceToDocument } from './services/appearance.ts'