style(web): Seiten auf Mosaik-Muster umgestellt

Einheitliche Seitenkoepfe mit Modul-Kachel, Knopf- und Linkklassen
statt gelber Schrift, Karten ohne harte Rahmen, Tabellenkoepfe ohne
Grossbuchstaben, Marktplatz mit Fluent-Reitern, Filterpillen und
Kachel-Karten, Einstellungs-/Verwaltungsnavigation mit Auswahlpille,
leere Zustaende mit Symbol im Kreis, Proxmox ohne leuchtende Schatten.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

apps/web/src/app/(portal)/modules/dkv-fleet/components/ExportFileList.tsx

@@ -61,7 +61,7 @@ export function ExportFileList({ historyItems }: ExportFileListProps) {
           <a
             href={exportFileUrl(filename)}
             download
-            className="text-sm text-primary hover:underline"
+            className="text-sm link"
           >
             {filename}
           </a>

apps/web/src/app/(portal)/modules/dkv-fleet/components/InvoiceHistoryTable.tsx

@@ -89,7 +89,7 @@ export function InvoiceHistoryTable({
   const totalPages = Math.ceil(total / 25);
 
   const theadCls =
-    'px-4 py-3 text-xs font-semibold uppercase tracking-wider text-muted-foreground border-b border-border text-left';
+    'px-4 py-3 text-xs font-semibold text-muted-foreground border-b border-border text-left';
 
   return (
     <div className="rounded border border-border overflow-hidden">
@@ -170,7 +170,7 @@ export function InvoiceHistoryTable({
                     <a
                       href={exportFileUrl(row.exportFilename)}
                       download
-                      className="inline-flex items-center gap-1 text-primary text-sm hover:underline"
+                      className="inline-flex items-center gap-1 link text-sm"
                     >
                       <DownloadIcon />
                       {row.exportFilename}

apps/web/src/app/(portal)/modules/dkv-fleet/page.tsx

@@ -4,6 +4,7 @@ import { useCallback, useState } from 'react';
 import { useTranslations } from 'next-intl';
 import { useParams } from 'next/navigation';
 import Link from 'next/link';
+import { PageHeader } from '@/components/layout/page-header';
 import { checkNow, type DkvHistoryEntry } from '@/lib/dkv-api';
 import { InvoiceHistoryTable } from './components/InvoiceHistoryTable';
 import { ExportFileList } from './components/ExportFileList';
@@ -75,51 +76,47 @@ export default function DkvFleetPage() {
   };
 
   return (
-    <div className="mx-auto max-w-5xl space-y-6 p-6">
-      {/* Page Header Row */}
-      <div className="flex items-start justify-between gap-4">
-        <div>
-          <h1 className="text-2xl font-semibold tracking-tight">
-            {t('pageTitle')}
-          </h1>
-          <p className="mt-1 text-sm text-muted-foreground">
-            {lastChecked
-              ? t('lastChecked', { time: formatLastChecked(lastChecked) })
-              : t('neverChecked')}
-          </p>
-        </div>
-
-        {/* Einstellungen-Link */}
-        <Link
-          href={`${basePath}/settings`}
-          className="rounded border border-border px-3 py-2 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
-          title={t('settingsTitle')}
-        >
-          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
+    <div className="mx-auto max-w-5xl space-y-6 p-3 sm:p-6">
+      {/* Seitenkopf (Design „Mosaik“): App-Kachel, Titel, Stand; Aktionen rechts */}
+      <PageHeader
+        moduleSlug="dkv-fleet"
+        title={t('pageTitle')}
+        description={
+          lastChecked
+            ? t('lastChecked', { time: formatLastChecked(lastChecked) })
+            : t('neverChecked')
+        }
+        actions={
+          <>
+            <Link
+              href={`${basePath}/settings`}
+              className="btn btn-secondary btn-icon"
+              title={t('settingsTitle')}
+              aria-label={t('settingsTitle')}
+            >
+              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
             <circle cx="12" cy="12" r="3" />
             <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 2.83-2.83l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z" />
           </svg>
-        </Link>
-
-        {/* "Jetzt prüfen" button per 07-UI-SPEC button states */}
-        <button
-          type="button"
-          onClick={handleCheckNow}
-          disabled={isChecking}
-          className={`rounded bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90 flex items-center${
-            isChecking ? ' opacity-80 cursor-not-allowed' : ''
-          }`}
-        >
-          {isChecking ? (
-            <>
-              <SpinnerIcon />
-              {t('checking')}
-            </>
-          ) : (
-            t('checkNow')
-          )}
-        </button>
-      </div>
+            </Link>
+            <button
+              type="button"
+              onClick={handleCheckNow}
+              disabled={isChecking}
+              className="btn btn-primary"
+            >
+              {isChecking ? (
+                <>
+                  <SpinnerIcon />
+                  {t('checking')}
+                </>
+              ) : (
+                t('checkNow')
+              )}
+            </button>
+          </>
+        }
+      />
 
       {/* Error banner — conditional per UI-SPEC */}
       {pollError && (

apps/web/src/app/(portal)/modules/dkv-fleet/settings/components/CsvImportButton.tsx

@@ -103,14 +103,14 @@ export function CsvImportButton({ onImported }: CsvImportButtonProps) {
       <button
         type="button"
         onClick={handleButtonClick}
-        className="rounded border border-border px-4 py-2 text-sm text-foreground transition-colors hover:bg-muted"
+        className="btn btn-secondary"
       >
         {t('importCsv')}
       </button>
 
       {/* Import mode inline dialog (below button, per UI-SPEC) */}
       {showDialog && selectedFile && (
-        <div className="absolute right-0 top-10 z-30 w-80 rounded border border-border bg-card p-4 shadow-md">
+        <div className="absolute right-0 top-10 z-30 w-80 rounded bg-card dark:border dark:border-border p-4 shadow-md">
           <div className="mb-3 rounded bg-muted/50 px-3 py-2 text-xs text-muted-foreground space-y-0.5">
             <p>{t('csvFormatHelp')}</p>
             <p className="font-mono">{t('csvFormatExample')}</p>
@@ -185,7 +185,7 @@ export function CsvImportButton({ onImported }: CsvImportButtonProps) {
             <button
               type="button"
               onClick={handleCancel}
-              className="rounded border border-border px-3 py-1.5 text-sm text-foreground hover:bg-muted"
+              className="btn btn-secondary"
             >
               {t('form.cancelDialog')}
             </button>

apps/web/src/app/(portal)/modules/dkv-fleet/settings/components/InboxConfigForm.tsx

@@ -525,7 +525,7 @@ export function InboxConfigForm() {
           type="button"
           onClick={handleTestConnection}
           disabled={isTesting || isSaving}
-          className="rounded border border-border px-4 py-2 text-sm text-foreground transition-colors hover:bg-muted disabled:opacity-50 disabled:cursor-not-allowed"
+          className="btn btn-secondary"
         >
           {isTesting ? t('form.testTesting') : t('form.testConnection')}
         </button>
@@ -533,7 +533,7 @@ export function InboxConfigForm() {
           type="button"
           onClick={handleSave}
           disabled={isSaving || isTesting}
-          className="rounded bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed"
+          className="btn btn-primary"
         >
           {t('form.save')}
         </button>
@@ -542,7 +542,7 @@ export function InboxConfigForm() {
             type="button"
             onClick={handleCheckNow}
             disabled={isChecking || isSaving || isTesting}
-            className="rounded border border-border px-4 py-2 text-sm text-foreground transition-colors hover:bg-muted disabled:opacity-50 disabled:cursor-not-allowed"
+            className="btn btn-secondary"
           >
             {isChecking ? 'Prüfe...' : 'Jetzt prüfen'}
           </button>

apps/web/src/app/(portal)/modules/dkv-fleet/settings/components/VehicleTable.tsx

@@ -77,7 +77,7 @@ const vehicleToEdit = (v: DkvVehicle): EditState => ({
 
 // --- Shared classes ---
 const theadCls =
-  'px-3 py-3 text-xs font-semibold uppercase tracking-wider text-muted-foreground border-b border-border text-left';
+  'px-3 py-3 text-xs font-semibold text-muted-foreground border-b border-border text-left';
 const iconBtnCls =
   'p-1 rounded text-muted-foreground hover:text-foreground hover:bg-muted transition-colors';
 const editInputCls =
@@ -95,7 +95,7 @@ function DeleteDialog({ plate, isDeleting, onConfirm, onCancel }: DeleteDialogPr
   const t = useTranslations('dkvFleet');
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40">
-      <div className="rounded border border-border bg-card px-6 py-5 shadow-lg max-w-sm w-full">
+      <div className="rounded bg-card dark:border dark:border-border px-6 py-5 shadow-lg max-w-sm w-full">
         <h3 className="text-base font-semibold text-foreground mb-2">
           {t('deleteVehicle')}
         </h3>
@@ -107,7 +107,7 @@ function DeleteDialog({ plate, isDeleting, onConfirm, onCancel }: DeleteDialogPr
             type="button"
             onClick={onCancel}
             disabled={isDeleting}
-            className="rounded border border-border px-4 py-2 text-sm text-foreground hover:bg-muted disabled:opacity-50 disabled:cursor-not-allowed"
+            className="btn btn-secondary"
           >
             {t('form.cancelDialog')}
           </button>
@@ -132,7 +132,7 @@ interface ToastProps {
 
 function Toast({ message }: ToastProps) {
   return (
-    <div className="fixed bottom-4 right-4 z-50 rounded border border-border bg-card shadow-md px-4 py-3 text-sm">
+    <div className="fixed bottom-4 right-4 z-50 rounded bg-card dark:border dark:border-border shadow-md px-4 py-3 text-sm">
       {message}
     </div>
   );
@@ -317,7 +317,7 @@ export function VehicleTable() {
             type="button"
             onClick={startAdd}
             disabled={isAddingNew}
-            className="rounded bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed"
+            className="btn btn-primary"
           >
             {t('addVehicle')}
           </button>
@@ -408,7 +408,7 @@ export function VehicleTable() {
                           aria-label={t('form.saveRow')}
                           onClick={() => saveEdit(v.id)}
                           disabled={isSavingRow}
-                          className={`${iconBtnCls} hover:text-primary`}
+                          className={`${iconBtnCls} hover:text-foreground`}
                         >
                           <CheckIcon />
                         </button>
@@ -515,7 +515,7 @@ export function VehicleTable() {
                       aria-label={t('form.saveRow')}
                       onClick={saveNew}
                       disabled={isSavingNew}
-                      className={`${iconBtnCls} hover:text-primary`}
+                      className={`${iconBtnCls} hover:text-foreground`}
                     >
                       <CheckIcon />
                     </button>

apps/web/src/app/(portal)/modules/dkv-fleet/settings/page.tsx

@@ -24,7 +24,7 @@ export default function DkvFleetSettingsPage() {
   const tabCls = (tab: ActiveTab) =>
     `px-4 py-2 text-sm transition-colors ${
       activeTab === tab
-        ? 'border-b-2 border-primary text-foreground font-medium'
+        ? 'border-b-2 border-primary-strong text-foreground font-semibold'
         : 'text-muted-foreground hover:text-foreground'
     }`;