Readme.md

@@ -8,7 +8,7 @@
 ![MySQL](https://img.shields.io/badge/MySQL-5.7%2B%20%2F%20MariaDB-4479A1?logo=mysql&logoColor=white)
 ![UniFi OS](https://img.shields.io/badge/UniFi%20OS-7.0%2B-0559C9?logo=ubiquiti&logoColor=white)
 ![License](https://img.shields.io/badge/Lizenz-MIT-green)
-![Version](https://img.shields.io/badge/Version-2.4.0-blueviolet)
+![Version](https://img.shields.io/badge/Version-2.5.0-blueviolet)
 ![CI](https://github.com/friloo/unifi-voucher-tool/actions/workflows/ci.yml/badge.svg)
 
 </div>
@@ -45,6 +45,8 @@
 - 💾 **Config-Backup & -Restore** (JSON Export/Import)
 - 🐳 **Docker** – Dockerfile + docker-compose (MariaDB)
 - 🌍 **Öffentlicher Modus** – optional ohne Login nutzbar (mit CSRF-Schutz & Throttle)
+- 🎨 **Einheitliches Design-System** – ein Stylesheet für Frontend, Login und Backend (Tokens, Komponenten, Light/Dark)
+- 🏷️ **Login-Seite individualisierbar** – Firmenname, Logo, Texte, Hintergrundbild bzw. Farbverlauf
 - 🌗 **Dark Mode** – umschaltbar, Einstellung wird im Browser gespeichert
 - 🌐 **Mehrsprachig** – Deutsch / Englisch per Umschalter (`lang/`)
 - 📱 **Responsive Admin-Layout** mit Hamburger-Menü & Sidebar-Overlay
@@ -59,31 +61,35 @@
 
 ## 📸 Screenshots
 
+> Alle Screenshots stammen aus der Oberfläche in Version 2.5.0 (neues Design-System).
+
 ### Anmeldung & Voucher-Erstellung
 
 <div align="center">
-  <img src="docs/screenshots/login.png" alt="Login mit Microsoft 365" width="32%">
+  <img src="docs/screenshots/login.png" alt="Anmeldung" width="48%">
-  <img src="docs/screenshots/voucher-form.png" alt="Voucher erstellen" width="32%">
+  <img src="docs/screenshots/login-branding.png" alt="Anmeldung mit eigenem Branding" width="48%">
-  <img src="docs/screenshots/voucher-result.png" alt="Voucher-Ergebnis" width="32%">
 </div>
 
-### Bulk-Erstellung & Dark Mode
-
 <div align="center">
-  <img src="docs/screenshots/bulk-vouchers.png" alt="Bulk-Voucher-Erstellung" width="48%">
+  <img src="docs/screenshots/voucher-form.png" alt="Voucher erstellen" width="48%">
-  <img src="docs/screenshots/admin-dashboard-dark.png" alt="Dashboard im Dark Mode" width="48%">
+  <img src="docs/screenshots/settings-login.png" alt="Einstellungen der Login-Seite" width="48%">
 </div>
 
-### Administration & Updater
+<div align="center">
+  <img src="docs/screenshots/voucher-result.png" alt="Voucher-Ergebnis mit QR-Code" width="48%">
+  <img src="docs/screenshots/bulk-vouchers.png" alt="Bulk-Voucher-Erstellung" width="48%">
+</div>
+
+### Administration
 
 <div align="center">
   <img src="docs/screenshots/admin-dashboard.png" alt="Dashboard" width="48%">
-  <img src="docs/screenshots/updater-available.png" alt="Auto-Updater" width="48%">
+  <img src="docs/screenshots/admin-dashboard-dark.png" alt="Dashboard im Dark Mode" width="48%">
 </div>
 
 <div align="center">
-  <img src="docs/screenshots/updater.png" alt="Updater – Ausgangszustand" width="48%">
+  <img src="docs/screenshots/vouchers.png" alt="Live-Voucher-Verwaltung" width="48%">
-  <img src="docs/screenshots/maintenance.png" alt="Wartungsmodus" width="48%">
+  <img src="docs/screenshots/settings.png" alt="Einstellungen" width="48%">
 </div>
 
 ### REST-API, 2FA & Integrationen
@@ -97,6 +103,17 @@
   <img src="docs/screenshots/two-factor.png" alt="Zwei-Faktor-Authentifizierung" width="60%">
 </div>
 
+### Updater & Wartungsmodus
+
+<div align="center">
+  <img src="docs/screenshots/updater.png" alt="Updater – Ausgangszustand" width="48%">
+  <img src="docs/screenshots/updater-available.png" alt="Auto-Updater mit verfügbarem Update" width="48%">
+</div>
+
+<div align="center">
+  <img src="docs/screenshots/maintenance.png" alt="Wartungsmodus" width="60%">
+</div>
+
 ---
 
 ## 📋 Anforderungen
@@ -220,6 +237,57 @@ Den Token finden Sie unter **Administration → Einstellungen → Cron**.
 
 ---
 
+## 🎨 Design-System
+
+Frontend, Login-Seiten, Installer, Updater und der gesamte Admin-Bereich nutzen ein
+gemeinsames Stylesheet: **`assets/global.css`**.
+
+- **Design-Tokens** (`:root` bzw. `[data-theme="dark"]`) für Flächen, Text, Linien,
+  Markenfarbe, Statusfarben, Radien, Schatten und Layout-Maße
+- **Komponenten** darauf aufgebaut: Buttons, Formularfelder, Cards, Tabellen, Badges,
+  Alerts, Tabs, Pagination, Modals, Toasts, Statistik-Kacheln, Sidebar/Topbar
+- **Dark Mode** ausschließlich über Tokens – keine `!important`-Overrides mehr
+- **Schriftart** Inter (via Google Fonts) mit System-Font-Fallback
+
+Eigenes Branding lässt sich meist mit wenigen Zeilen umsetzen – z. B. in einer
+eigenen CSS-Datei oder direkt in `assets/global.css`:
+
+```css
+:root {
+    --accent:         #0f766e;   /* Primärfarbe (Buttons, aktive Navigation) */
+    --accent-hover:   #0d5f59;
+    --accent-soft:    #e6f4f2;   /* Flächen für aktive Zustände */
+    --brand-gradient: linear-gradient(135deg, #0f766e 0%, #0ea5e9 100%);
+    --r-lg:           14px;      /* Eckenradius für Cards */
+}
+```
+
+Logo und Favicon werden nicht über CSS, sondern unter
+**Administration → Einstellungen → Allgemein** gesetzt.
+
+### Login-Seite individualisieren
+
+Unter **Administration → Einstellungen → Login-Seite** lässt sich die Anmeldeseite
+ohne Code-Änderung an das eigene Haus anpassen. Leere Felder verwenden jeweils den
+Standardwert – eine frische Installation sieht also unverändert aus.
+
+| Einstellung | Wirkung |
+|---|---|
+| Linke Bildspalte anzeigen | Split-Screen an/aus. Aus = zentrierte Anmeldekarte |
+| Firmenname | Name neben dem Logo bzw. in der Fußzeile (leer = Anwendungstitel) |
+| Logo (URL) | Eigenes Logo in der Bildspalte (leer = allgemeines Logo) |
+| Überschrift / Beschreibungstext | Claim in der Bildspalte |
+| Stichpunkte | Liste mit Haken – ein Stichpunkt pro Zeile, leer = keine Liste |
+| Fußzeile | z. B. `© 2026 Muster GmbH · Datenschutz · Impressum` |
+| Hintergrundbild (URL) | Formatfüllendes Bild der Bildspalte |
+| Verlauf Start-/Endfarbe | Farbverlauf, wenn kein Bild gesetzt ist |
+| Abdunklung (%) | Dunkle Ebene über dem Bild, damit der Text lesbar bleibt |
+
+Über **„Vorschau öffnen"** lässt sich die Login-Seite als angemeldeter Administrator
+ansehen (`login.php?preview=1`), ohne sich abzumelden.
+
+---
+
 ## 🛡️ Sicherheit
 
 Das Tool ist auf einen sicheren Standardbetrieb ausgelegt:
@@ -378,11 +446,12 @@ setzen (`DB_*`, `APP_KEY`).
 - [x] Docker-Container
 - [x] Erweiterte Reporting-Funktionen (CSV/PDF) + Health-Endpoint
 - [x] 2FA-Recovery-Codes, API-Scopes/Rate-Limit/OpenAPI, Test-Suite (PHPUnit/PHPStan)
+- [x] Gemeinsames Design-System für Frontend, Login und Backend
 
 ---
 
 <div align="center">
 
-**Version 2.4.0** · Autor: **Friederich Loheide** · Lizenz: **MIT**
+**Version 2.5.0** · Autor: **Friederich Loheide** · Lizenz: **MIT**
 
 </div>

admin/api_keys.php

@@ -68,28 +68,12 @@ $adminBase   = '';
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>API-Schlüssel – <?= htmlspecialchars($appTitle) ?></title>
 <?php require __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
+<div class="page-header">
-.card { background: var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:24px; margin-bottom:22px; box-shadow:0 4px 14px var(--shadow); }
+    <div>
-.card h2 { font-size:16px; margin-bottom:16px; color:var(--text-primary); }
+        <h1 class="page-title">API-Schlüssel</h1>
-table { width:100%; border-collapse:collapse; }
+        <p class="page-subtitle">Zugänge für externe Systeme – mit Scope und Rate-Limit.</p>
-th,td { text-align:left; padding:11px 8px; font-size:14px; border-bottom:1px solid var(--border-color); color:var(--text-primary); }
+    </div>
-th { color:var(--text-muted); font-weight:600; }
+</div>
-code { font-family:monospace; background:var(--bg-hover); padding:2px 6px; border-radius:5px; }
-.btn { padding:10px 16px; border:none; border-radius:8px; font-weight:600; cursor:pointer; font-size:14px; text-decoration:none; display:inline-block; }
-.btn-primary { background:var(--accent,#667eea); color:#fff; }
-.input { width:100%; padding:11px; border:2px solid var(--border-color); border-radius:8px; background:var(--bg-input,#fff); color:var(--text-primary); font-size:14px; }
-.alert { padding:12px 14px; border-radius:9px; font-size:14px; margin-bottom:18px; }
-.alert-error { background:#fee; border:1px solid #fcc; color:#c33; }
-.alert-ok { background:#efe; border:1px solid #cfc; color:#2a7; }
-.keybox { background:#0f1117; color:#7CFFB2; font-family:monospace; padding:14px; border-radius:8px; word-break:break-all; font-size:15px; margin-top:10px; }
-.badge { padding:3px 9px; border-radius:6px; font-size:12px; font-weight:600; }
-.b-on { background:#e3f6ea; color:#2a7; } .b-off { background:#fdeaea; color:#c33; }
-.a-link { color:var(--accent,#667eea); text-decoration:none; margin-right:10px; font-size:13px; }
-.muted { color:var(--text-muted); font-size:13px; }
-</style>
-</head>
-<body>
-<h1 style="font-size:24px;margin-bottom:20px;color:var(--text-primary);">🔑 API-Schlüssel</h1>
 
 <?php if ($error): ?><div class="alert alert-error"><?= htmlspecialchars($error) ?></div><?php endif; ?>
 <?php if ($success): ?><div class="alert alert-ok"><?= htmlspecialchars($success) ?></div><?php endif; ?>
@@ -130,6 +114,7 @@ code { font-family:monospace; background:var(--bg-hover); padding:2px 6px; borde
     <?php if (empty($keys)): ?>
         <p class="muted">Noch keine API-Schlüssel angelegt.</p>
     <?php else: ?>
+    <div class="table-container">
     <table>
         <tr><th>Name</th><th>Präfix</th><th>Scope</th><th>Limit</th><th>Status</th><th>Zuletzt genutzt</th><th>Erstellt von</th><th></th></tr>
         <?php foreach ($keys as $k): ?>
@@ -139,15 +124,16 @@ code { font-family:monospace; background:var(--bg-hover); padding:2px 6px; borde
             <td><?= ($k['scope'] ?? 'write') === 'read' ? 'nur Lesen' : 'Lesen+Erstellen' ?></td>
             <td><?= (int)($k['rate_limit'] ?? 0) === 0 ? '∞' : (int)$k['rate_limit'] . '/min' ?></td>
             <td><span class="badge <?= $k['is_active'] ? 'b-on' : 'b-off' ?>"><?= $k['is_active'] ? 'aktiv' : 'gesperrt' ?></span></td>
-            <td class="muted"><?= $k['last_used_at'] ? htmlspecialchars($k['last_used_at']) : '–' ?></td>
+            <td class="muted"><?= $k['last_used_at'] ? date('d.m.Y H:i', strtotime($k['last_used_at'])) : '–' ?></td>
             <td class="muted"><?= htmlspecialchars($k['creator'] ?? '–') ?></td>
             <td style="text-align:right;white-space:nowrap;">
                 <a class="a-link" href="?toggle=<?= (int)$k['id'] ?>&token=<?= urlencode($csrf) ?>"><?= $k['is_active'] ? 'Sperren' : 'Aktivieren' ?></a>
-                <a class="a-link" style="color:#e25555;" href="?delete=<?= (int)$k['id'] ?>&token=<?= urlencode($csrf) ?>" onclick="return confirm('Schlüssel löschen?');">Löschen</a>
+                <a class="a-link" style="color:var(--danger);" href="?delete=<?= (int)$k['id'] ?>&token=<?= urlencode($csrf) ?>" onclick="return confirm('Schlüssel löschen?');">Löschen</a>
             </td>
         </tr>
         <?php endforeach; ?>
     </table>
+    </div>
     <?php endif; ?>
 </div>
 
@@ -165,7 +151,7 @@ curl https://IHRE-DOMAIN/api/sites.php -H "X-API-Key: uvt_…"</pre>
     <p class="muted" style="margin-top:12px;">OpenAPI-Spezifikation (Import in Postman/Swagger): <a href="../api/openapi.php" target="_blank">/api/openapi.php</a></p>
 </div>
 
-</div><!-- /main-content -->
+</main>
 <script src="../assets/global.js"></script>
 </body>
 </html>

admin/audit_log.php

@@ -46,21 +46,21 @@ $currentPage = 'audit_log';
 $adminBase   = '';
 
 $actionLabels = [
-    'voucher_created'  => '🎫 Voucher erstellt',
+    'voucher_created'  => 'Voucher erstellt',
-    'voucher_bulk'     => '🎫 Bulk Voucher',
+    'voucher_bulk'     => 'Bulk Voucher',
-    'user_login'       => '🔐 Login',
+    'user_login'       => 'Login',
-    'user_logout'      => '🚪 Logout',
+    'user_logout'      => 'Logout',
-    'user_created'     => '👤 Benutzer erstellt',
+    'user_created'     => 'Benutzer erstellt',
-    'user_updated'     => '👤 Benutzer geändert',
+    'user_updated'     => 'Benutzer geändert',
-    'user_deleted'     => '👤 Benutzer gelöscht',
+    'user_deleted'     => 'Benutzer gelöscht',
-    'site_added'       => '🌐 Site hinzugefügt',
+    'site_added'       => 'Site hinzugefügt',
-    'site_updated'     => '🌐 Site geändert',
+    'site_updated'     => 'Site geändert',
-    'site_deleted'     => '🌐 Site gelöscht',
+    'site_deleted'     => 'Site gelöscht',
-    'settings_saved'   => '⚙️ Einstellungen gespeichert',
+    'settings_saved'   => 'Einstellungen gespeichert',
-    'password_reset'   => '🔑 Passwort-Reset',
+    'password_reset'   => 'Passwort-Reset',
-    'template_created' => '📋 Profil erstellt',
+    'template_created' => 'Profil erstellt',
-    'template_updated' => '📋 Profil geändert',
+    'template_updated' => 'Profil geändert',
-    'template_deleted' => '📋 Profil gelöscht',
+    'template_deleted' => 'Profil gelöscht',
 ];
 ?>
 <!DOCTYPE html>
@@ -70,42 +70,12 @@ $actionLabels = [
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('audit_title') ?> - <?= htmlspecialchars($appTitle) ?></title>
     <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-    <style>
-        .page-header { margin-bottom: 25px; }
-        .page-title  { font-size: 28px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
-        .card { background: var(--bg-card); border-radius: 15px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); overflow: hidden; margin-bottom: 20px; }
-        .card-header { padding: 18px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
-        .card-title  { font-size: 16px; font-weight: 600; color: var(--text-primary); }
-        .table { width: 100%; border-collapse: collapse; }
-        .table th { text-align: left; padding: 11px 15px; background: var(--bg-table-head); color: var(--text-secondary); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
-        .table td { padding: 12px 15px; border-bottom: 1px solid var(--border-color); font-size: 13px; color: var(--text-primary); }
-        .table tr:last-child td { border-bottom: none; }
-        .table tr:hover td { background: var(--bg-hover); }
-        .badge { display: inline-block; padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 500; }
-        .filter-bar { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
-        .filter-bar select { padding: 9px 12px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 13px; background: var(--bg-input); color: var(--text-primary); }
-        .filter-bar select:focus { outline: none; border-color: var(--accent); }
-        .btn-primary  { background: var(--accent); color: white; }
-        .btn-primary:hover { background: var(--accent-hover); }
-        .btn-small { padding: 6px 12px; font-size: 12px; }
-        .ip-cell { font-family: monospace; font-size: 12px; color: var(--text-muted); }
-        .details-cell { max-width: 250px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-secondary); }
-        .pagination { display: flex; align-items: center; justify-content: space-between; padding: 14px 25px; border-top: 1px solid var(--border-color); flex-wrap: wrap; gap: 10px; }
-        .page-info { font-size: 13px; color: var(--text-muted); }
-        .page-btns  { display: flex; gap: 5px; flex-wrap: wrap; }
-        .page-btn   { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border-color); background: var(--bg-card); color: var(--text-secondary); cursor: pointer; font-size: 13px; text-decoration: none; transition: all 0.2s; }
-        .page-btn:hover { border-color: var(--accent); color: var(--accent); }
-        .page-btn.active { background: var(--accent); color: white; border-color: var(--accent); }
-        .page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
-        .empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
-        .empty-state i { font-size: 42px; margin-bottom: 15px; display: block; opacity: 0.3; }
-        .action-chip { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 500; background: var(--bg-hover); color: var(--text-secondary); }
-    </style>
-</head>
 
     <div class="page-header">
+        <div>
             <h1 class="page-title"><?= __('audit_title') ?></h1>
-        <p style="color: var(--text-muted); font-size: 14px;"><?= __('audit_subtitle') ?></p>
+            <p class="page-subtitle"><?= __('audit_subtitle') ?></p>
+        </div>
     </div>
 
     <!-- Filter -->
@@ -151,6 +121,7 @@ $actionLabels = [
             <div class="empty-state"><i class="fas fa-history"></i><p><?= __('audit_none') ?></p></div>
         <?php else: ?>
         <div style="overflow-x:auto;">
+            <div class="table-container">
             <table class="table">
                 <thead>
                     <tr>
@@ -198,6 +169,7 @@ $actionLabels = [
                 </tbody>
             </table>
             </div>
+        </div>
 
         <?php if ($pages > 1): ?>
         <div class="pagination">
@@ -221,7 +193,7 @@ $actionLabels = [
         <?php endif; ?>
     </div>
 
-</div><!-- main-content -->
+</main>
 <script src="../assets/global.js"></script>
 </body>
 </html>

admin/backup.php

@@ -114,22 +114,12 @@ $adminBase   = '';
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Backup & Restore – <?= htmlspecialchars($appTitle) ?></title>
 <?php require __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
+<div class="page-header">
-.card { background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:24px; margin-bottom:22px; box-shadow:0 4px 14px var(--shadow); max-width:680px; }
+    <div>
-.card h2 { font-size:16px; margin-bottom:12px; color:var(--text-primary); }
+        <h1 class="page-title">Backup &amp; Restore</h1>
-.muted { color:var(--text-muted); font-size:13px; margin-bottom:14px; }
+        <p class="page-subtitle">Konfiguration und Daten sichern oder wiederherstellen.</p>
-.btn { padding:11px 18px; border:none; border-radius:8px; font-weight:600; cursor:pointer; font-size:14px; text-decoration:none; display:inline-block; }
+    </div>
-.btn-primary { background:var(--accent,#667eea); color:#fff; }
+</div>
-.btn-secondary { background:var(--bg-hover); color:var(--text-primary); border:1px solid var(--border-color); }
-.alert { padding:12px 14px; border-radius:9px; font-size:14px; margin-bottom:18px; max-width:680px; }
-.alert-error { background:#fee; border:1px solid #fcc; color:#c33; }
-.alert-ok { background:#efe; border:1px solid #cfc; color:#2a7; }
-label.chk { display:flex; align-items:center; gap:9px; margin:8px 0; color:var(--text-primary); font-size:14px; }
-input[type=file] { margin:10px 0; color:var(--text-primary); }
-</style>
-</head>
-<body>
-<h1 style="font-size:24px;margin-bottom:20px;color:var(--text-primary);">💾 Backup &amp; Restore</h1>
 
 <?php if ($error): ?><div class="alert alert-error"><?= htmlspecialchars($error) ?></div><?php endif; ?>
 <?php if ($success): ?><div class="alert alert-ok"><?= htmlspecialchars($success) ?></div><?php endif; ?>
@@ -153,7 +143,7 @@ input[type=file] { margin:10px 0; color:var(--text-primary); }
     </form>
 </div>
 
-</div><!-- /main-content -->
+</main>
 <script src="../assets/global.js"></script>
 </body>
 </html>

admin/import.php

@@ -93,22 +93,12 @@ $adminBase   = '';
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>CSV-Import – <?= htmlspecialchars($appTitle) ?></title>
 <?php require __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
+<div class="page-header">
-.card { background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:24px; margin-bottom:20px; box-shadow:0 4px 14px var(--shadow); max-width:760px; }
+    <div>
-.card h2 { font-size:15px; margin-bottom:12px; color:var(--text-primary); }
+        <h1 class="page-title">Voucher-Import</h1>
-.muted { color:var(--text-muted); font-size:13px; margin-bottom:12px; }
+        <p class="page-subtitle">Mehrere Vouchers auf einmal aus einer CSV-Liste erstellen.</p>
-label { display:block; font-size:13px; color:var(--text-secondary); margin:12px 0 6px; }
+    </div>
-.input,textarea,select { width:100%; padding:11px; border:2px solid var(--border-color); border-radius:8px; background:var(--bg-input,#fff); color:var(--text-primary); font-size:14px; font-family:inherit; }
+</div>
-textarea { min-height:140px; font-family:monospace; }
-.btn { padding:11px 18px; border:none; border-radius:8px; font-weight:600; font-size:14px; cursor:pointer; background:var(--accent,#667eea); color:#fff; }
-.alert { padding:12px 14px; border-radius:9px; font-size:14px; margin-bottom:18px; max-width:760px; }
-.alert-error { background:#fee; border:1px solid #fcc; color:#c33; } .alert-ok { background:#efe; border:1px solid #cfc; color:#2a7; }
-table { width:100%; border-collapse:collapse; } th,td { text-align:left; padding:8px; font-size:13px; border-bottom:1px solid var(--border-color); color:var(--text-primary); }
-code { font-family:monospace; background:var(--bg-hover); padding:2px 6px; border-radius:5px; }
-</style>
-</head>
-<body>
-<h1 style="font-size:24px;margin-bottom:18px;color:var(--text-primary);">📥 Voucher-Import (CSV)</h1>
 
 <?php if ($error): ?><div class="alert alert-error"><?= htmlspecialchars($error) ?></div><?php endif; ?>
 <?php if ($success): ?><div class="alert alert-ok"><?= htmlspecialchars($success) ?></div><?php endif; ?>
@@ -142,7 +132,7 @@ code { font-family:monospace; background:var(--bg-hover); padding:2px 6px; borde
 </div>
 <?php endif; ?>
 
-</div><!-- /main-content -->
+</main>
 <script src="../assets/global.js"></script>
 </body>
 </html>

admin/index.php

@@ -92,74 +92,6 @@ $currentPage = 'dashboard';
     <title><?= __('dashboard_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
     <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.umd.min.js"></script>
 <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
-    .page-header { margin-bottom: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; }
-    .page-title { font-size: 26px; font-weight: 700; color: var(--text-primary); }
-    .page-subtitle { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
-    .live-badge { display: inline-flex; align-items: center; gap: 8px; background: #d4edda; color: #155724; padding: 8px 16px; border-radius: 20px; font-size: 13px; font-weight: 500; }
-    .live-badge .dot { width: 8px; height: 8px; background: #28a745; border-radius: 50%; animation: pulse 2s infinite; }
-    .live-badge.loading { background: #fff3cd; color: #856404; }
-    .live-badge.loading .dot { background: #ffc107; }
-    .live-badge.error { background: #f8d7da; color: #721c24; }
-    .live-badge.error .dot { background: var(--danger); animation: none; }
-    @keyframes pulse { 0%,100%{opacity:1}50%{opacity:.5} }
-    .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin-bottom: 30px; }
-    .stat-card { background: var(--bg-card); padding: 22px; border-radius: 14px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); }
-    .stat-card.live { border-color: var(--success); border-width: 2px; }
-    .stat-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
-    .stat-card-title { color: var(--text-muted); font-size: 13px; font-weight: 500; }
-    .stat-card-icon { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 17px; }
-    .stat-card-value { font-size: 30px; font-weight: 700; color: var(--text-primary); }
-    .stat-card-value.valid { color: var(--success); }
-    .stat-card-value.used { color: var(--warning); }
-    .stat-card-value.expired { color: var(--danger); }
-    .stat-card-sub { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
-    .card { background: var(--bg-card); border-radius: 14px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); margin-bottom: 28px; overflow: hidden; }
-    .card-header { padding: 18px 22px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
-    .card-title { font-size: 17px; font-weight: 600; color: var(--text-primary); }
-    .card-body { padding: 22px; }
-    .table { width: 100%; border-collapse: collapse; }
-    .table th { text-align: left; padding: 11px 14px; background: var(--bg-table-head); color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
-    .table td { padding: 13px 14px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); font-size: 14px; }
-    .table tr:last-child td { border-bottom: none; }
-    .badge { display: inline-block; padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 500; }
-    .badge-success { background: #d4edda; color: #155724; }
-    .badge-warning { background: #fff3cd; color: #856404; }
-    .badge-danger  { background: #f8d7da; color: #721c24; }
-    .badge-info    { background: var(--bg-badge-info); color: var(--text-badge-info); }
-    .btn-primary   { background: var(--accent); color: white; }
-    .btn-primary:hover { background: var(--accent-hover); }
-    .btn-success   { background: var(--success); color: white; }
-    .btn-success:hover { opacity: .9; }
-    .btn-sm { padding: 6px 12px; font-size: 12px; }
-    .chart-container { position: relative; height: 280px; }
-    .site-status { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 14px; }
-    .site-status-card { background: var(--bg-card); border: 2px solid var(--border-color); border-radius: 12px; padding: 18px; transition: border-color .2s; }
-    .site-status-card:hover { border-color: var(--accent); }
-    .site-status-card.error { border-color: var(--danger); }
-    .site-status-name { font-weight: 600; color: var(--text-primary); font-size: 15px; }
-    .site-voucher-count { background: var(--accent); color: white; padding: 3px 11px; border-radius: 20px; font-size: 13px; font-weight: 600; }
-    .site-voucher-count.zero { background: var(--text-muted); }
-    .site-status-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-top: 12px; }
-    .site-stat { text-align: center; padding: 9px; background: var(--bg-hover); border-radius: 8px; }
-    .site-stat-value { font-size: 18px; font-weight: 700; }
-    .site-stat-value.valid { color: var(--success); }
-    .site-stat-value.used  { color: var(--warning); }
-    .site-stat-value.expired { color: var(--danger); }
-    .site-stat-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
-    .site-error { color: var(--danger); font-size: 12px; margin-top: 8px; }
-    .top-users-list { list-style: none; }
-    .top-users-list li { display: flex; justify-content: space-between; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--border-color); }
-    .top-users-list li:last-child { border-bottom: none; }
-    .user-info-row { display: flex; align-items: center; gap: 10px; }
-    .user-avatar-sm { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg,#667eea,#764ba2); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 13px; }
-    .user-count { background: var(--bg-hover); padding: 3px 10px; border-radius: 12px; font-weight: 600; color: var(--text-primary); font-size: 13px; }
-    .refresh-indicator { display: flex; align-items: center; gap: 10px; }
-    .last-update { color: var(--text-muted); font-size: 12px; }
-    .empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
-    .empty-state i { font-size: 40px; margin-bottom: 15px; opacity: .3; display: block; }
-    @media(max-width:768px){ .main-content{ margin-left:0!important; } .stats-grid{ grid-template-columns:1fr 1fr; } }
-</style>
 
 <div class="page-header">
     <div>
@@ -171,7 +103,7 @@ $currentPage = 'dashboard';
             <span class="dot"></span>
             <span id="liveStatus">DB</span>
         </span>
-        <button onclick="refreshData('live')" class="btn btn-success btn-sm" id="refreshBtn">
+        <button onclick="refreshData('live')" class="btn btn-secondary btn-sm" id="refreshBtn">
             <i class="fas fa-sync-alt"></i> <?= __('dashboard_live_refresh') ?>
         </button>
     </div>
@@ -181,43 +113,43 @@ $currentPage = 'dashboard';
     <div class="stat-card">
         <div class="stat-card-header">
             <div class="stat-card-title"><?= __('dashboard_active_sites') ?></div>
-            <div class="stat-card-icon" style="background:#e3f2fd;color:#1976d2;"><i class="fas fa-map-marker-alt"></i></div>
+            <div class="stat-card-icon info"><i class="fas fa-location-dot"></i></div>
         </div>
         <div class="stat-card-value"><?= $stats['total_sites'] ?></div>
     </div>
     <div class="stat-card">
         <div class="stat-card-header">
             <div class="stat-card-title"><?= __('dashboard_users') ?></div>
-            <div class="stat-card-icon" style="background:#f3e5f5;color:#7b1fa2;"><i class="fas fa-users"></i></div>
+            <div class="stat-card-icon accent"><i class="fas fa-users"></i></div>
         </div>
         <div class="stat-card-value"><?= $stats['total_users'] ?></div>
     </div>
     <div class="stat-card live">
         <div class="stat-card-header">
-            <div class="stat-card-title">🟢 <?= __('dashboard_valid') ?></div>
+            <div class="stat-card-title"><?= __('dashboard_valid') ?></div>
-            <div class="stat-card-icon" style="background:#e8f5e9;color:#388e3c;"><i class="fas fa-check-circle"></i></div>
+            <div class="stat-card-icon success"><i class="fas fa-circle-check"></i></div>
         </div>
         <div class="stat-card-value valid" id="liveValid"><?= (int)($voucherStats['valid']??0) ?></div>
         <div class="stat-card-sub" id="subValid"><?= $lastCronSync ? date('H:i', strtotime($lastCronSync)) : __('never') ?></div>
     </div>
     <div class="stat-card live">
         <div class="stat-card-header">
-            <div class="stat-card-title">🟡 <?= __('dashboard_used') ?></div>
+            <div class="stat-card-title"><?= __('dashboard_used') ?></div>
-            <div class="stat-card-icon" style="background:#fff3e0;color:#f57c00;"><i class="fas fa-user-check"></i></div>
+            <div class="stat-card-icon warning"><i class="fas fa-user-check"></i></div>
         </div>
         <div class="stat-card-value used" id="liveUsed"><?= (int)($voucherStats['used']??0) ?></div>
     </div>
     <div class="stat-card live">
         <div class="stat-card-header">
-            <div class="stat-card-title">🔴 <?= __('dashboard_expired') ?></div>
+            <div class="stat-card-title"><?= __('dashboard_expired') ?></div>
-            <div class="stat-card-icon" style="background:#ffebee;color:#d32f2f;"><i class="fas fa-times-circle"></i></div>
+            <div class="stat-card-icon danger"><i class="fas fa-circle-xmark"></i></div>
         </div>
         <div class="stat-card-value expired" id="liveExpired"><?= (int)($voucherStats['expired']??0) ?></div>
     </div>
     <div class="stat-card live">
         <div class="stat-card-header">
-            <div class="stat-card-title">📊 <?= __('dashboard_total') ?></div>
+            <div class="stat-card-title"><?= __('dashboard_total') ?></div>
-            <div class="stat-card-icon" style="background:var(--bg-hover);color:var(--text-muted);"><i class="fas fa-ticket-alt"></i></div>
+            <div class="stat-card-icon"><i class="fas fa-ticket"></i></div>
         </div>
         <div class="stat-card-value" id="liveTotal"><?= (int)($voucherStats['total']??0) ?></div>
     </div>
@@ -225,16 +157,16 @@ $currentPage = 'dashboard';
 
 <div class="card">
     <div class="card-header">
-        <h2 class="card-title">🔴 <?= __('dashboard_vouchers_per_site') ?></h2>
+        <h2 class="card-title"><?= __('dashboard_vouchers_per_site') ?></h2>
         <span class="last-update" id="lastUpdate"><?= $lastCronSync ? date('d.m.Y H:i', strtotime($lastCronSync)) : __('never') ?></span>
     </div>
-    <div class="card-body" style="padding:18px;">
+    <div class="card-body">
         <div class="site-status" id="siteStatusContainer">
             <?php foreach ($sites as $site):
                 $ss = $siteStats[$site['id']] ?? ['total'=>0,'valid'=>0,'used'=>0,'expired'=>0];
             ?>
             <div class="site-status-card" id="site-<?= $site['id'] ?>">
-                <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;">
+                <div style="display:flex;justify-content:space-between;align-items:center;gap:10px;">
                     <div class="site-status-name"><?= htmlspecialchars($site['name']) ?></div>
                     <span class="site-voucher-count <?= (int)$ss['total']===0 ? 'zero' : '' ?>" id="site-total-<?= $site['id'] ?>">
                         <?= (int)$ss['total'] ?>
@@ -249,8 +181,8 @@ $currentPage = 'dashboard';
             </div>
             <?php endforeach; ?>
             <?php if (empty($sites)): ?>
-            <div style="grid-column:1/-1;text-align:center;padding:40px;color:var(--text-muted);">
+            <div class="empty-state" style="grid-column:1/-1;">
-                <i class="fas fa-map-marker-alt" style="font-size:32px;margin-bottom:15px;opacity:.3;display:block;"></i>
+                <div class="empty-icon"><i class="fas fa-location-dot"></i></div>
                 <p><?= __('dashboard_no_data') ?></p>
                 <a href="sites.php" class="btn btn-primary" style="margin-top:15px;"><i class="fas fa-plus"></i> <?= __('sites_add') ?></a>
             </div>
@@ -260,16 +192,16 @@ $currentPage = 'dashboard';
 </div>
 
 <div class="card">
-    <div class="card-header"><h2 class="card-title">📊 <?= __('dashboard_trend') ?></h2></div>
+    <div class="card-header"><h2 class="card-title"><?= __('dashboard_trend') ?></h2></div>
     <div class="card-body">
         <div class="chart-container"><canvas id="voucherChart"></canvas></div>
     </div>
 </div>
 
-<div style="display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:28px;" class="two-col-grid">
+<div class="two-col-grid">
-    <div class="card" style="margin-bottom:0;">
+    <div class="card">
-        <div class="card-header"><h2 class="card-title">🏆 <?= __('dashboard_top_users') ?></h2></div>
+        <div class="card-header"><h2 class="card-title"><?= __('dashboard_top_users') ?></h2></div>
-        <div class="card-body" style="padding:18px 22px;">
+        <div class="card-body">
             <?php if (empty($topUsers)): ?>
                 <div class="empty-state"><i class="fas fa-users"></i><p><?= __('dashboard_no_data') ?></p></div>
             <?php else: ?>
@@ -291,19 +223,20 @@ $currentPage = 'dashboard';
         </div>
     </div>
 
-    <div class="card" style="margin-bottom:0;">
+    <div class="card">
-        <div class="card-header"><h2 class="card-title">📋 <?= __('dashboard_recent') ?></h2><a href="vouchers.php" class="btn btn-secondary btn-sm"><i class="fas fa-external-link-alt"></i> Live</a></div>
+        <div class="card-header"><h2 class="card-title"><?= __('dashboard_recent') ?></h2><a href="vouchers.php" class="btn btn-secondary btn-sm"><i class="fas fa-arrow-up-right-from-square"></i> Live</a></div>
         <div class="card-body" style="padding:0;">
             <?php if (empty($recentVouchers)): ?>
                 <div class="empty-state"><i class="fas fa-ticket-alt"></i><p><?= __('dashboard_no_vouchers') ?></p></div>
             <?php else: ?>
+                <div class="table-container">
                 <table class="table">
                     <thead><tr><th><?= __('label_created') ?></th><th><?= __('label_code') ?></th><th><?= __('label_site') ?></th><th><?= __('label_status') ?></th></tr></thead>
                     <tbody>
                         <?php foreach ($recentVouchers as $v): ?>
                         <tr>
                             <td style="font-size:12px;"><?= date('d.m H:i', strtotime($v['created_at'])) ?></td>
-                            <td><code style="font-size:12px;background:var(--bg-hover);padding:3px 6px;border-radius:4px;"><?= htmlspecialchars($v['voucher_code']) ?></code></td>
+                            <td><code><?= htmlspecialchars($v['voucher_code']) ?></code></td>
                             <td><span class="badge badge-info"><?= htmlspecialchars($v['site_name']??'') ?></span></td>
                             <td>
                                 <?php $st=$v['status']??'valid'; ?>
@@ -313,17 +246,26 @@ $currentPage = 'dashboard';
                         <?php endforeach; ?>
                     </tbody>
                 </table>
+                </div>
             <?php endif; ?>
         </div>
     </div>
 </div>
 
-</div><!-- /main-content -->
+</main>
 
 <div id="toast-container"></div>
 <script src="../assets/global.js"></script>
 <script>
+const rootStyles = getComputedStyle(document.documentElement);
+const accentColor  = rootStyles.getPropertyValue('--accent').trim();
+const surfaceColor = rootStyles.getPropertyValue('--bg-card').trim();
+const gridColor    = rootStyles.getPropertyValue('--border-color').trim();
+const mutedColor   = rootStyles.getPropertyValue('--text-muted').trim();
 const ctx = document.getElementById('voucherChart').getContext('2d');
+const accentFill = ctx.createLinearGradient(0, 0, 0, 280);
+accentFill.addColorStop(0, accentColor + '33');
+accentFill.addColorStop(1, accentColor + '00');
 const chartData = <?= json_encode($chartData) ?>;
 new Chart(ctx, {
     type: 'line',
@@ -332,17 +274,20 @@ new Chart(ctx, {
         datasets: [{
             label: 'Vouchers',
             data: chartData.map(d => d.count),
-            borderColor: '#667eea',
+            borderColor: accentColor,
-            backgroundColor: 'rgba(102,126,234,0.1)',
+            backgroundColor: accentFill,
             tension: 0.4, fill: true,
-            pointBackgroundColor: '#667eea', pointBorderColor: '#fff',
+            pointBackgroundColor: accentColor, pointBorderColor: surfaceColor,
-            pointBorderWidth: 2, pointRadius: 5, pointHoverRadius: 7
+            pointBorderWidth: 2, pointRadius: 4, pointHoverRadius: 6
         }]
     },
     options: {
         responsive: true, maintainAspectRatio: false,
         plugins: { legend: { display: false } },
-        scales: { y: { beginAtZero: true, ticks: { stepSize: 1, color: getComputedStyle(document.documentElement).getPropertyValue('--text-muted').trim() } }, x: { ticks: { color: getComputedStyle(document.documentElement).getPropertyValue('--text-muted').trim() } } }
+        scales: {
+            y: { beginAtZero: true, border: { display: false }, grid: { color: gridColor, drawTicks: false }, ticks: { stepSize: 1, color: mutedColor, padding: 10, font: { size: 11 } } },
+            x: { border: { display: false }, grid: { display: false }, ticks: { color: mutedColor, padding: 8, font: { size: 11 } } }
+        }
     }
 });
 
@@ -396,11 +341,6 @@ async function refreshData(mode='db') {
     refreshBtn.disabled = false;
     refreshBtn.innerHTML = '<i class="fas fa-sync-alt"></i> <?= __('dashboard_live_refresh') ?>';
 }
-
-// Responsive two-column grid
-const twoCol = document.querySelector('.two-col-grid');
-function checkGrid() { if (twoCol) twoCol.style.gridTemplateColumns = window.innerWidth < 900 ? '1fr' : '1fr 1fr'; }
-checkGrid(); window.addEventListener('resize', checkGrid);
 </script>
 </body>
 </html>

admin/integrations.php

@@ -94,22 +94,12 @@ $adminBase   = '';
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Integration & Wartung – <?= htmlspecialchars($appTitle) ?></title>
 <?php require __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
+<div class="page-header">
-.card { background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:24px; margin-bottom:22px; box-shadow:0 4px 14px var(--shadow); max-width:680px; }
+    <div>
-.card h2 { font-size:16px; margin-bottom:6px; color:var(--text-primary); }
+        <h1 class="page-title">Integration &amp; Wartung</h1>
-.muted { color:var(--text-muted); font-size:13px; margin-bottom:14px; }
+        <p class="page-subtitle">SSO, Webhooks, SMS-Versand und Aufbewahrungsfristen.</p>
-label { display:block; font-size:14px; color:var(--text-secondary); margin:14px 0 6px; }
+    </div>
-.input { width:100%; padding:11px; border:2px solid var(--border-color); border-radius:8px; background:var(--bg-input,#fff); color:var(--text-primary); font-size:14px; }
+</div>
-.row { display:grid; grid-template-columns:1fr 1fr 1fr; gap:12px; }
-.chk { display:flex; align-items:center; gap:9px; margin-top:14px; color:var(--text-primary); font-size:14px; }
-.btn { padding:11px 18px; border:none; border-radius:8px; font-weight:600; cursor:pointer; font-size:14px; text-decoration:none; display:inline-block; }
-.btn-primary { background:var(--accent,#667eea); color:#fff; } .btn-secondary { background:var(--bg-hover); color:var(--text-primary); border:1px solid var(--border-color); }
-.alert { padding:12px 14px; border-radius:9px; font-size:14px; margin-bottom:18px; max-width:680px; }
-.alert-error { background:#fee; border:1px solid #fcc; color:#c33; } .alert-ok { background:#efe; border:1px solid #cfc; color:#2a7; }
-</style>
-</head>
-<body>
-<h1 style="font-size:24px;margin-bottom:20px;color:var(--text-primary);">🔧 Integration &amp; Wartung</h1>
 
 <?php if ($error): ?><div class="alert alert-error"><?= htmlspecialchars($error) ?></div><?php endif; ?>
 <?php if ($success): ?><div class="alert alert-ok"><?= htmlspecialchars($success) ?></div><?php endif; ?>
@@ -124,12 +114,12 @@ label { display:block; font-size:14px; color:var(--text-secondary); margin:14px
     <label>Tageslimit Voucher pro Nicht-Admin-Benutzer (0 = unbegrenzt)</label>
     <input class="input" type="number" min="0" name="user_daily_voucher_limit" value="<?= $dailyLimit ?>" style="max-width:200px;">
     <label>Session-Speicher</label>
-    <select class="input" name="session_driver" style="max-width:240px;">
+    <select class="input" name="session_driver" style="max-width:340px;">
         <option value="php" <?= $sessionDriver==='php'?'selected':'' ?>>PHP-Standard (Dateien)</option>
         <option value="db"  <?= $sessionDriver==='db'?'selected':'' ?>>Datenbank (ermöglicht „überall abmelden")</option>
     </select>
     <label>Captcha im öffentlichen Modus</label>
-    <select class="input" name="captcha_mode" style="max-width:240px;">
+    <select class="input" name="captcha_mode" style="max-width:340px;">
         <option value="off"      <?= $captchaMode==='off'?'selected':'' ?>>Aus</option>
         <option value="math"     <?= $captchaMode==='math'?'selected':'' ?>>Rechenaufgabe (ohne externen Dienst)</option>
         <option value="hcaptcha" <?= $captchaMode==='hcaptcha'?'selected':'' ?>>hCaptcha</option>
@@ -198,7 +188,7 @@ label { display:block; font-size:14px; color:var(--text-secondary); margin:14px
 <button class="btn btn-primary" type="submit" name="save">Speichern</button>
 </form>
 
-</div><!-- /main-content -->
+</main>
 <script src="../assets/global.js"></script>
 </body>
 </html>

admin/reports.php

@@ -98,36 +98,26 @@ $adminBase   = '';
 <title>Reporting – <?= htmlspecialchars($appTitle) ?></title>
 <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.umd.min.js"></script>
 <?php require __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
+<div class="page-header">
-.card { background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:22px; margin-bottom:20px; box-shadow:0 4px 14px var(--shadow); }
+    <div>
-.card h2 { font-size:15px; margin-bottom:14px; color:var(--text-primary); }
+        <h1 class="page-title">Reporting</h1>
-.grid4 { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:20px; }
+        <p class="page-subtitle">Auswertungen nach Zeitraum, Site und Benutzer.</p>
-.stat { background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:20px; }
+    </div>
-.stat .n { font-size:28px; font-weight:700; color:var(--text-primary); } .stat .l { color:var(--text-muted); font-size:12.5px; margin-top:3px; }
+</div>
-table { width:100%; border-collapse:collapse; } th,td { text-align:left; padding:10px 8px; font-size:14px; border-bottom:1px solid var(--border-color); color:var(--text-primary); } th { color:var(--text-muted); }
-.btn { padding:9px 15px; border:none; border-radius:8px; font-weight:600; font-size:13px; text-decoration:none; display:inline-block; cursor:pointer; }
-.btn-s { background:var(--bg-hover); color:var(--text-primary); border:1px solid var(--border-color); }
-.toolbar { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:18px; }
-select.input { padding:9px; border:2px solid var(--border-color); border-radius:8px; background:var(--bg-input,#fff); color:var(--text-primary); }
-@media print { .sidebar,.header,.toolbar,.no-print { display:none !important; } .main-content { margin:0 !important; } }
-</style>
-</head>
-<body>
-<h1 style="font-size:24px;margin-bottom:18px;color:var(--text-primary);">📊 Reporting</h1>
 
 <div class="toolbar no-print">
     <form method="get" style="display:flex;gap:8px;align-items:center;">
-        <label style="color:var(--text-muted);font-size:13px;">Zeitraum:</label>
+        <label style="margin:0;">Zeitraum</label>
         <select class="input" name="days" onchange="this.form.submit()">
             <?php foreach ([7,30,90,365] as $d): ?>
             <option value="<?= $d ?>" <?= $days===$d?'selected':'' ?>><?= $d ?> Tage</option>
             <?php endforeach; ?>
         </select>
     </form>
-    <a class="btn btn-s" href="?export=daily&days=<?= $days ?>">⬇️ CSV (täglich)</a>
+    <a class="btn btn-secondary" href="?export=daily&days=<?= $days ?>"><i class="fas fa-download"></i> CSV (täglich)</a>
-    <a class="btn btn-s" href="?export=per_site">⬇️ CSV (pro Site)</a>
+    <a class="btn btn-secondary" href="?export=per_site"><i class="fas fa-download"></i> CSV (pro Site)</a>
-    <a class="btn btn-s" href="?export=per_user">⬇️ CSV (pro Nutzer)</a>
+    <a class="btn btn-secondary" href="?export=per_user"><i class="fas fa-download"></i> CSV (pro Nutzer)</a>
-    <button class="btn btn-s" onclick="window.print()">🖨️ Drucken/PDF</button>
+    <button class="btn btn-secondary" onclick="window.print()"><i class="fas fa-print"></i> Drucken/PDF</button>
 </div>
 
 <div class="grid4">
@@ -161,13 +151,23 @@ select.input { padding:9px; border:2px solid var(--border-color); border-radius:
     </table>
 </div>
 
-</div><!-- /main-content -->
+</main>
 <script src="../assets/global.js"></script>
 <script>
+const styles = getComputedStyle(document.documentElement);
+const accent = styles.getPropertyValue('--accent').trim();
+const grid   = styles.getPropertyValue('--border-color').trim();
+const muted  = styles.getPropertyValue('--text-muted').trim();
 new Chart(document.getElementById('chart'), {
   type:'line',
-  data:{ labels: <?= json_encode($chartLabels) ?>, datasets:[{ label:'Voucher', data: <?= json_encode($chartData) ?>, borderColor:'#667eea', backgroundColor:'rgba(102,126,234,.15)', fill:true, tension:.3 }] },
+  data:{ labels: <?= json_encode($chartLabels) ?>, datasets:[{ label:'Voucher', data: <?= json_encode($chartData) ?>, borderColor: accent, backgroundColor: accent + '22', fill:true, tension:.35, pointRadius:0, pointHoverRadius:4, borderWidth:2 }] },
-  options:{ plugins:{legend:{display:false}}, scales:{y:{beginAtZero:true,ticks:{precision:0}}} }
+  options:{
+    plugins:{legend:{display:false}},
+    scales:{
+      y:{ beginAtZero:true, border:{display:false}, grid:{color:grid, drawTicks:false}, ticks:{precision:0, color:muted, padding:10, font:{size:11}} },
+      x:{ border:{display:false}, grid:{display:false}, ticks:{color:muted, padding:8, font:{size:11}} }
+    }
+  }
 });
 </script>
 </body>

admin/security.php

@@ -93,37 +93,24 @@ $activeSessions = $dbSessions ? $auth->activeSessionCount() : 0;
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Zwei-Faktor-Authentifizierung – <?= htmlspecialchars($appTitle) ?></title>
 <?php if (!$totpEnabled && $hasPassword): ?>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js" integrity="sha512-CNgIRecGo7nphbeZ04Sc13ka07paqdeTu0WR1IM4kNcpmBAUSHSe2keRB6Q5pBUtIxCY7bQMsVB0ANBpd6JDg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js" integrity="sha512-CNgIRecGo7nphbeZ04Sc13ka07paqdeTu0WR1IM4kNcpmBAUSHSQX0FslNhTDadL4O5SAGapGt4FodqL8My0mA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
 <?php endif; ?>
-<style>
+<link rel="preconnect" href="https://fonts.googleapis.com">
-* { margin:0; padding:0; box-sizing:border-box; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; }
+<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-body { background:linear-gradient(135deg,#667eea 0%,#764ba2 100%); min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px; }
+<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
-.card { background:#fff; border-radius:18px; box-shadow:0 20px 60px rgba(0,0,0,.3); max-width:480px; width:100%; padding:36px; }
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-h1 { font-size:22px; color:#333; margin-bottom:6px; }
+<link rel="stylesheet" href="../assets/global.css">
-.sub { color:#777; font-size:14px; margin-bottom:24px; }
+<script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
-.alert { padding:12px 14px; border-radius:9px; font-size:14px; margin-bottom:18px; }
-.alert-error { background:#fee; border:1px solid #fcc; color:#c33; }
-.alert-ok { background:#efe; border:1px solid #cfc; color:#2a7; }
-.status { display:inline-flex; align-items:center; gap:8px; padding:6px 12px; border-radius:8px; font-size:13px; font-weight:600; margin-bottom:20px; }
-.on { background:#e3f6ea; color:#2a7; } .off { background:#fdeaea; color:#c33; }
-.qr { display:flex; justify-content:center; margin:18px 0; }
-.secret { font-family:monospace; background:#f5f6fa; padding:10px; border-radius:8px; text-align:center; letter-spacing:2px; word-break:break-all; font-size:14px; margin-bottom:18px; }
-ol { margin:0 0 18px 18px; color:#555; font-size:14px; line-height:1.7; }
-label { display:block; font-size:14px; color:#555; margin-bottom:8px; font-weight:500; }
-input[type=text] { width:100%; padding:13px; border:2px solid #e0e0e0; border-radius:10px; font-size:18px; letter-spacing:6px; text-align:center; }
-.btn { width:100%; padding:14px; border:none; border-radius:10px; font-size:15px; font-weight:600; cursor:pointer; margin-top:14px; }
-.btn-primary { background:#667eea; color:#fff; } .btn-danger { background:#e25555; color:#fff; }
-.back { display:block; text-align:center; margin-top:20px; color:#667eea; text-decoration:none; font-size:14px; }
-.codes-box { background:#fff8e6; border:1px solid #ffe3a3; border-radius:10px; padding:16px; margin-bottom:18px; }
-.codes-box strong { font-size:15px; } .codes-box p { color:#8a6d2f; font-size:13px; margin:6px 0 12px; }
-.codes { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
-.codes span { font-family:monospace; background:#fff; border:1px solid #ffe3a3; border-radius:6px; padding:8px; text-align:center; letter-spacing:2px; font-size:14px; }
-</style>
 </head>
-<body>
+<body class="app-body focus-page">
-<div class="card">
+<div class="focus-card card">
-  <h1>🔐 Zwei-Faktor-Authentifizierung</h1>
+  <div class="focus-head">
+    <span class="focus-icon"><i class="fas fa-shield-halved"></i></span>
+    <div>
+      <h1>Zwei-Faktor-Authentifizierung</h1>
       <p class="sub">Konto: <?= htmlspecialchars($user['email']) ?></p>
+    </div>
+  </div>
 
   <?php if ($setupRequired && !$totpEnabled): ?>
     <div class="alert alert-error">Aus Sicherheitsgründen ist 2FA für Administratoren verpflichtend. Bitte jetzt einrichten.</div>
@@ -133,7 +120,7 @@ input[type=text] { width:100%; padding:13px; border:2px solid #e0e0e0; border-ra
 
   <?php if (!empty($backupCodes)): ?>
     <div class="codes-box">
-      <strong>🔑 Recovery-Codes</strong>
+      <strong><i class="fas fa-key"></i> Recovery-Codes</strong>
       <p>Bewahren Sie diese sicher auf. Jeder Code funktioniert <em>einmal</em>, falls Sie keinen Zugriff auf Ihre App haben.</p>
       <div class="codes">
         <?php foreach ($backupCodes as $c): ?><span><?= htmlspecialchars($c) ?></span><?php endforeach; ?>
@@ -142,22 +129,22 @@ input[type=text] { width:100%; padding:13px; border:2px solid #e0e0e0; border-ra
   <?php endif; ?>
 
   <?php if (!$hasPassword): ?>
-    <div class="status off">● Nicht verfügbar</div>
+    <div class="status off"><i class="fas fa-circle-minus"></i> Nicht verfügbar</div>
     <p class="sub">Ihr Konto meldet sich über Microsoft 365 an. 2FA wird dort in Ihrem Microsoft-Konto verwaltet.</p>
   <?php elseif ($totpEnabled): ?>
-    <div class="status on">● Aktiv</div>
+    <div class="status on"><i class="fas fa-circle-check"></i> Aktiv</div>
     <p class="sub">Bei jeder Anmeldung wird zusätzlich ein Code aus Ihrer Authenticator-App abgefragt.<br>
        Verbleibende Recovery-Codes: <strong><?= (int)$auth->backupCodesRemaining($user) ?></strong></p>
     <form method="post" style="margin-bottom:10px;">
       <input type="hidden" name="csrf_token" value="<?= htmlspecialchars($csrf) ?>">
-      <button type="submit" name="regen_codes" class="btn btn-secondary" style="background:#eef0ff;color:#5a63d6;width:100%;">Recovery-Codes neu erzeugen</button>
+      <button type="submit" name="regen_codes" class="btn btn-secondary btn-lg btn-block">Recovery-Codes neu erzeugen</button>
     </form>
     <form method="post" onsubmit="return confirm('2FA wirklich deaktivieren?');">
       <input type="hidden" name="csrf_token" value="<?= htmlspecialchars($csrf) ?>">
-      <button type="submit" name="disable_totp" class="btn btn-danger">2FA deaktivieren</button>
+      <button type="submit" name="disable_totp" class="btn btn-danger btn-lg btn-block">2FA deaktivieren</button>
     </form>
   <?php else: ?>
-    <div class="status off">● Inaktiv</div>
+    <div class="status off"><i class="fas fa-circle-minus"></i> Inaktiv</div>
     <ol>
       <li>Authenticator-App öffnen (Google Authenticator, Authy, Microsoft Authenticator …)</li>
       <li>QR-Code scannen <em>oder</em> Secret manuell eingeben</li>
@@ -168,27 +155,28 @@ input[type=text] { width:100%; padding:13px; border:2px solid #e0e0e0; border-ra
     <form method="post">
       <input type="hidden" name="csrf_token" value="<?= htmlspecialchars($csrf) ?>">
       <label for="code">6-stelliger Code</label>
-      <input type="text" id="code" name="code" inputmode="numeric" pattern="[0-9]*" maxlength="6" autocomplete="one-time-code" required>
+      <input type="text" id="code" name="code" class="code-input" inputmode="numeric" pattern="[0-9]*" maxlength="6" autocomplete="one-time-code" required placeholder="123456">
-      <button type="submit" name="enable_totp" class="btn btn-primary">2FA aktivieren</button>
+      <button type="submit" name="enable_totp" class="btn btn-primary btn-lg btn-block" style="margin-top:14px;">2FA aktivieren</button>
     </form>
     <script>
       new QRCode(document.getElementById('qrcode'), {
-        text: <?= json_encode($otpUri) ?>, width: 180, height: 180,
+        text: <?= json_encode($otpUri) ?>, width: 168, height: 168,
+        colorDark: '#101625', colorLight: '#ffffff',
         correctLevel: QRCode.CorrectLevel.M
       });
     </script>
   <?php endif; ?>
 
   <?php if ($dbSessions): ?>
-  <hr style="margin:20px 0;border:none;border-top:1px solid #eee;">
+  <hr>
   <p class="sub">Aktive Sitzungen: <strong><?= (int)$activeSessions ?></strong></p>
   <form method="post" onsubmit="return confirm('Alle anderen Sitzungen abmelden?');">
     <input type="hidden" name="csrf_token" value="<?= htmlspecialchars($csrf) ?>">
-    <button type="submit" name="logout_others" class="btn" style="background:#eef0ff;color:#5a63d6;width:100%;">Auf allen anderen Geräten abmelden</button>
+    <button type="submit" name="logout_others" class="btn btn-secondary btn-lg btn-block">Auf allen anderen Geräten abmelden</button>
   </form>
   <?php endif; ?>
 
-  <a class="back" href="../index.php">← Zurück</a>
+  <div class="auth-links"><a class="back-link" href="../index.php"><i class="fas fa-arrow-left"></i> Zurück</a></div>
 </div>
 </body>
 </html>

admin/settings.php

@@ -58,6 +58,21 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['save_settings'])) {
                 $settings['public_access'] = isset($_POST['public_access']) ? '1' : '0';
             }
 
+            if ($formType === 'login') {
+                $settings['login_panel_enabled'] = isset($_POST['login_panel_enabled']) ? '1' : '0';
+                $settings['login_brand_name']    = trim($_POST['login_brand_name'] ?? '');
+                $settings['login_logo_url']      = trim($_POST['login_logo_url'] ?? '');
+                $settings['login_claim_title']   = trim($_POST['login_claim_title'] ?? '');
+                $settings['login_claim_text']    = trim($_POST['login_claim_text'] ?? '');
+                $settings['login_features']      = trim($_POST['login_features'] ?? '');
+                $settings['login_footer']        = trim($_POST['login_footer'] ?? '');
+                $settings['login_bg_image']      = trim($_POST['login_bg_image'] ?? '');
+                $settings['login_bg_from']       = trim($_POST['login_bg_from'] ?? '');
+                $settings['login_bg_to']         = trim($_POST['login_bg_to'] ?? '');
+                $overlay = (int)($_POST['login_bg_overlay'] ?? 40);
+                $settings['login_bg_overlay']    = (string)max(0, min(90, $overlay));
+            }
+
             if ($formType === 'defaults') {
                 $expMin = (int)($_POST['default_expire_minutes'] ?? 480);
                 $defDev = (int)($_POST['default_max_uses'] ?? 1);
@@ -190,6 +205,17 @@ $cs = [
     'email_user_notification_body' => $db->getSetting('email_user_notification_body', "Hallo {USER_NAME},\n\n{CHANGES}"),
     'tinymce_api_key'              => $db->getSetting('tinymce_api_key', ''),
     'print_template'               => $db->getSetting('print_template', '<div style="text-align:center;padding:40px"><h1>{APP_TITLE}</h1><h2>WLAN Code</h2><div style="font-size:48px;font-weight:bold;margin:30px 0;font-family:monospace">{VOUCHER_CODE}</div><p><strong>Gültig bis:</strong> {EXPIRY_DATE} {EXPIRY_TIME}</p><p><strong>Site:</strong> {SITE_NAME}</p><p><strong>Geräte:</strong> {MAX_USES}</p><hr style="margin:30px 0"><div>{INSTRUCTIONS}</div></div>'),
+    'login_panel_enabled'          => $db->getSetting('login_panel_enabled', '1'),
+    'login_brand_name'             => $db->getSetting('login_brand_name', ''),
+    'login_logo_url'               => $db->getSetting('login_logo_url', ''),
+    'login_claim_title'            => $db->getSetting('login_claim_title', ''),
+    'login_claim_text'             => $db->getSetting('login_claim_text', ''),
+    'login_features'               => $db->getSetting('login_features', ''),
+    'login_footer'                 => $db->getSetting('login_footer', ''),
+    'login_bg_image'               => $db->getSetting('login_bg_image', ''),
+    'login_bg_from'                => $db->getSetting('login_bg_from', '#3b2f8f'),
+    'login_bg_to'                  => $db->getSetting('login_bg_to', '#6d5ce7'),
+    'login_bg_overlay'             => $db->getSetting('login_bg_overlay', '40'),
     'cron_token'                   => $db->getSetting('cron_token', ''),
     'last_cron_sync'               => $db->getSetting('last_cron_sync', ''),
 ];
@@ -207,54 +233,18 @@ $adminBase = '';
     <?php if (!empty($cs['tinymce_api_key'])): ?>
     <script src="https://cdn.tiny.cloud/1/<?= htmlspecialchars($cs['tinymce_api_key']) ?>/tinymce/6/tinymce.min.js"></script>
     <?php else: ?>
-    <script src="https://cdn.tiny.cloud/1/no-api-key/tinymce/6/tinymce.min.js"></script>
+    <!-- Ohne API-Key die GPL-Variante von cdnjs laden: gleiche Funktionen, kein Hinweis-Banner. -->
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/tinymce/6.8.3/tinymce.min.js" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+    <script>window.TINYMCE_BASE_URL = 'https://cdnjs.cloudflare.com/ajax/libs/tinymce/6.8.3';</script>
     <?php endif; ?>
 
     <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
 
-    <style>
-        .page-header { margin-bottom: 30px; }
-        .page-title  { font-size: 28px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
-        .alert { padding: 14px 20px; border-radius: 10px; margin-bottom: 25px; font-size: 14px; display: flex; align-items: center; gap: 10px; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .tab-container { background: var(--bg-card); border-radius: 15px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); overflow: hidden; }
-        .tab-navigation { display: flex; background: var(--bg-table-head); border-bottom: 2px solid var(--border-color); overflow-x: auto; position: sticky; top: 70px; z-index: 50; }
-        .tab-button { padding: 15px 20px; background: transparent; border: none; border-bottom: 3px solid transparent; cursor: pointer; font-size: 13px; font-weight: 500; color: var(--text-secondary); transition: all 0.3s; white-space: nowrap; display: flex; align-items: center; gap: 7px; }
-        .tab-button:hover { background: rgba(102,126,234,0.1); color: var(--accent); }
-        .tab-button.active { color: var(--accent); border-bottom-color: var(--accent); background: var(--bg-card); }
-        .tab-content { display: none; padding: 30px; animation: fadeIn 0.2s; }
-        .tab-content.active { display: block; }
-        @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
-        .form-group { margin-bottom: 20px; }
-        label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="text"], input[type="url"], input[type="password"], input[type="number"], input[type="email"], select, textarea { width: 100%; padding: 11px 14px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; transition: border-color 0.2s; font-family: inherit; background: var(--bg-input); color: var(--text-primary); }
-        input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
-        textarea { resize: vertical; min-height: 100px; }
-        .checkbox-group { display: flex; align-items: center; gap: 10px; }
-        .checkbox-group input { width: auto; accent-color: var(--accent); }
-        .help-text { font-size: 12px; color: var(--text-muted); margin-top: 5px; }
-        .info-box { background: #e7f3ff; border: 1px solid #b3d9ff; border-radius: 8px; padding: 15px; margin-bottom: 20px; }
-        .info-box h4 { color: #0066cc; margin-bottom: 8px; font-size: 14px; }
-        .info-box p { color: #004d99; font-size: 13px; line-height: 1.5; }
-        .section-divider { border: none; border-top: 2px solid var(--border-color); margin: 28px 0; }
-        .form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
-        .placeholder-info { background: #fff9e6; border: 1px solid #ffe066; border-radius: 8px; padding: 14px; margin: 14px 0; }
-        .placeholder-info h4 { color: #996600; margin-bottom: 8px; font-size: 14px; }
-        .placeholder-info code { background: #fff; padding: 2px 6px; border-radius: 3px; font-size: 12px; color: #d63384; }
-        .placeholder-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
-        .btn-primary { background: var(--accent); color: white; }
-        .btn-primary:hover { background: var(--accent-hover); }
-        .btn-danger { background: #dc3545; color: white; }
-        .btn-small { padding: 6px 12px; font-size: 13px; }
-        .token-box { background: var(--bg-hover); padding: 14px; border-radius: 6px; font-family: monospace; word-break: break-all; color: var(--text-primary); }
-        code { background: var(--code-bg); color: var(--accent); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
-    </style>
-</head>
-
     <div class="page-header">
+        <div>
             <h1 class="page-title"><?= __('settings_title') ?></h1>
-        <p style="color: var(--text-muted); font-size: 14px;"><?= __('settings_subtitle') ?></p>
+            <p class="page-subtitle"><?= __('settings_subtitle') ?></p>
+        </div>
     </div>
 
     <?php if ($error): ?>
@@ -268,6 +258,7 @@ $adminBase = '';
         <div class="tab-navigation" id="tabNav">
             <button class="tab-button active" data-tab="general"><i class="fas fa-sliders-h"></i> <?= __('settings_tab_general') ?></button>
             <button class="tab-button" data-tab="defaults"><i class="fas fa-sliders-h"></i> <?= __('settings_tab_defaults') ?></button>
+            <button class="tab-button" data-tab="login"><i class="fas fa-right-to-bracket"></i> <?= __('settings_tab_login') ?></button>
             <button class="tab-button" data-tab="cron"><i class="fas fa-clock"></i> <?= __('settings_tab_cron') ?></button>
             <button class="tab-button" data-tab="m365"><i class="fab fa-microsoft"></i> <?= __('settings_tab_m365') ?></button>
             <button class="tab-button" data-tab="smtp"><i class="fas fa-envelope"></i> <?= __('settings_tab_smtp') ?></button>
@@ -331,6 +322,92 @@ $adminBase = '';
             </form>
         </div>
 
+        <!-- Login-Seite -->
+        <div id="tab-login" class="tab-content">
+            <h2 style="margin-bottom: 8px; color: var(--text-primary);"><i class="fas fa-right-to-bracket"></i> <?= __('settings_tab_login') ?></h2>
+            <p style="color: var(--text-muted); font-size: 14px; margin-bottom: 24px;"><?= __('settings_login_intro') ?></p>
+            <form method="post">
+                <input type="hidden" name="csrf_token" value="<?= $auth->getCsrfToken() ?>">
+                <input type="hidden" name="form_type" value="login">
+
+                <div class="checkbox-group" style="margin-bottom: 20px;">
+                    <input type="checkbox" name="login_panel_enabled" id="login_panel_enabled" <?= $cs['login_panel_enabled'] === '1' ? 'checked' : '' ?>>
+                    <label for="login_panel_enabled" style="margin:0;"><?= __('settings_login_panel') ?></label>
+                </div>
+
+                <div class="form-grid">
+                    <div class="form-group">
+                        <label><?= __('settings_login_brand') ?></label>
+                        <input type="text" name="login_brand_name" value="<?= htmlspecialchars($cs['login_brand_name']) ?>" placeholder="<?= htmlspecialchars($cs['app_title']) ?>">
+                        <div class="help-text"><?= __('settings_login_brand_hint') ?></div>
+                    </div>
+                    <div class="form-group">
+                        <label><?= __('settings_login_logo') ?></label>
+                        <input type="url" name="login_logo_url" value="<?= htmlspecialchars($cs['login_logo_url']) ?>" placeholder="https://example.com/logo.svg">
+                        <div class="help-text"><?= __('settings_login_logo_hint') ?></div>
+                    </div>
+                </div>
+
+                <hr class="section-divider">
+
+                <div class="form-group">
+                    <label><?= __('settings_login_claim_title') ?></label>
+                    <input type="text" name="login_claim_title" value="<?= htmlspecialchars($cs['login_claim_title']) ?>" placeholder="<?= htmlspecialchars(__('auth_claim_title')) ?>">
+                </div>
+                <div class="form-group">
+                    <label><?= __('settings_login_claim_text') ?></label>
+                    <textarea name="login_claim_text" rows="3" placeholder="<?= htmlspecialchars(__('auth_claim_text')) ?>"><?= htmlspecialchars($cs['login_claim_text']) ?></textarea>
+                </div>
+                <div class="form-group">
+                    <label><?= __('settings_login_features') ?></label>
+                    <textarea name="login_features" rows="4" placeholder="<?= htmlspecialchars(__('auth_feature_1') . "\n" . __('auth_feature_2') . "\n" . __('auth_feature_3')) ?>"><?= htmlspecialchars($cs['login_features']) ?></textarea>
+                    <div class="help-text"><?= __('settings_login_features_hint') ?></div>
+                </div>
+                <div class="form-group">
+                    <label><?= __('settings_login_footer') ?></label>
+                    <input type="text" name="login_footer" value="<?= htmlspecialchars($cs['login_footer']) ?>" placeholder="© <?= date('Y') ?> <?= htmlspecialchars($cs['app_title']) ?>">
+                </div>
+
+                <hr class="section-divider">
+
+                <div class="form-group">
+                    <label><?= __('settings_login_bg_image') ?></label>
+                    <input type="url" name="login_bg_image" value="<?= htmlspecialchars($cs['login_bg_image']) ?>" placeholder="https://example.com/empfang.jpg">
+                    <div class="help-text"><?= __('settings_login_bg_image_hint') ?></div>
+                </div>
+                <div class="form-grid">
+                    <div class="form-group">
+                        <label><?= __('settings_login_bg_from') ?></label>
+                        <div class="color-field">
+                            <input type="color" class="color-swatch" data-target="login_bg_from"
+                                   value="<?= preg_match('/^#[0-9a-fA-F]{6}$/', $cs['login_bg_from']) ? htmlspecialchars($cs['login_bg_from']) : '#3b2f8f' ?>">
+                            <input type="text" id="login_bg_from" name="login_bg_from" value="<?= htmlspecialchars($cs['login_bg_from']) ?>" placeholder="#3b2f8f">
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label><?= __('settings_login_bg_to') ?></label>
+                        <div class="color-field">
+                            <input type="color" class="color-swatch" data-target="login_bg_to"
+                                   value="<?= preg_match('/^#[0-9a-fA-F]{6}$/', $cs['login_bg_to']) ? htmlspecialchars($cs['login_bg_to']) : '#6d5ce7' ?>">
+                            <input type="text" id="login_bg_to" name="login_bg_to" value="<?= htmlspecialchars($cs['login_bg_to']) ?>" placeholder="#6d5ce7">
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label><?= __('settings_login_overlay') ?></label>
+                        <input type="number" name="login_bg_overlay" min="0" max="90" value="<?= (int)$cs['login_bg_overlay'] ?>">
+                        <div class="help-text"><?= __('settings_login_overlay_hint') ?></div>
+                    </div>
+                </div>
+
+                <div style="display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;">
+                    <button type="submit" name="save_settings" class="btn btn-primary"><i class="fas fa-save"></i> <?= __('btn_save') ?></button>
+                    <a href="../login.php?preview=1" target="_blank" rel="noopener" class="btn btn-secondary">
+                        <i class="fas fa-arrow-up-right-from-square"></i> <?= __('settings_login_preview') ?>
+                    </a>
+                </div>
+            </form>
+        </div>
+
         <!-- Cron-Sync -->
         <div id="tab-cron" class="tab-content">
             <h2 style="margin-bottom: 20px; color: var(--text-primary);"><i class="fas fa-clock"></i> <?= __('settings_tab_cron') ?></h2>
@@ -486,7 +563,7 @@ $adminBase = '';
         </div>
     </div>
 
-</div><!-- main-content -->
+</main>
 
 <script src="../assets/global.js"></script>
 <script>
@@ -502,6 +579,16 @@ document.querySelectorAll('.tab-button').forEach(btn => {
     });
 });
 
+// Farbwähler und Hex-Feld synchron halten
+document.querySelectorAll('.color-swatch').forEach(swatch => {
+    const field = document.getElementById(swatch.dataset.target);
+    if (!field) return;
+    swatch.addEventListener('input', () => { field.value = swatch.value; });
+    field.addEventListener('input', () => {
+        if (/^#[0-9a-fA-F]{6}$/.test(field.value.trim())) swatch.value = field.value.trim();
+    });
+});
+
 // Restore tab from hash
 window.addEventListener('DOMContentLoaded', function() {
     const hash = location.hash.substring(1);
@@ -551,15 +638,25 @@ async function testCronJob() {
 }
 
 function initTinyMCE() {
-    tinymce.init({
+    if (typeof tinymce === 'undefined') return;
+    const dark = document.documentElement.getAttribute('data-theme') === 'dark';
+    const config = {
         selector: '.tinymce-editor',
         height: 350,
         menubar: false,
         plugins: ['advlist','autolink','lists','link','searchreplace','visualblocks','code','fullscreen','table','help','wordcount'],
         toolbar: 'undo redo | blocks | bold italic forecolor | alignleft aligncenter alignright | bullist numlist | removeformat | help',
-        content_style: 'body { font-family: -apple-system, sans-serif; font-size: 14px; line-height: 1.6; }',
+        content_style: "body { font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 14px; line-height: 1.6; }",
+        skin: dark ? 'oxide-dark' : 'oxide',
+        content_css: dark ? 'dark' : 'default',
         branding: false, promotion: false
-    });
+    };
+    if (window.TINYMCE_BASE_URL) {
+        tinymce.baseURL = window.TINYMCE_BASE_URL;
+        config.base_url = window.TINYMCE_BASE_URL;
+        config.suffix = '.min';
+    }
+    tinymce.init(config);
 }
 </script>
 </body>

admin/sites.php

@@ -101,50 +101,6 @@ $currentPage = 'sites';
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('sites_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
 <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
-    .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
-    .page-title { font-size: 26px; font-weight: 700; color: var(--text-primary); }
-    .alert { padding: 13px 18px; border-radius: 10px; font-size: 14px; margin-bottom: 20px; }
-    .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-    .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-    .sites-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 18px; }
-    .site-card { background: var(--bg-card); border: 2px solid var(--border-color); border-radius: 14px; padding: 20px; transition: border-color .2s, box-shadow .2s; }
-    .site-card:hover { border-color: var(--accent); box-shadow: 0 4px 14px rgba(102,126,234,.15); }
-    .site-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
-    .site-name { font-size: 17px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
-    .site-id-label { font-size: 12px; color: var(--text-muted); font-family: monospace; }
-    .site-info { margin: 14px 0; font-size: 13px; color: var(--text-secondary); }
-    .site-info-item { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; }
-    .site-actions { display: flex; gap: 7px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-color); flex-wrap: wrap; }
-    .badge { display: inline-block; padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 500; margin: 2px; }
-    .badge-success { background: #d4edda; color: #155724; }
-    .badge-warning { background: #fff3cd; color: #856404; }
-    .badge-info    { background: var(--bg-badge-info); color: var(--text-badge-info); }
-    .btn { padding: 8px 15px; border-radius: 8px; border: none; font-weight: 500; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: all .2s; font-size: 13px; }
-    .btn-primary { background: var(--accent); color: white; }
-    .btn-primary:hover { background: var(--accent-hover); }
-    .btn-secondary { background: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border-color); }
-    .btn-secondary:hover { background: var(--border-color); }
-    .btn-danger { background: var(--danger); color: white; }
-    .btn-success { background: var(--success); color: white; }
-    .btn-sm { padding: 6px 11px; font-size: 12px; }
-    .modal { display: none; position: fixed; inset: 0; background: var(--modal-overlay); z-index: 1000; align-items: center; justify-content: center; }
-    .modal.active { display: flex; }
-    .modal-content { background: var(--bg-card); border-radius: 14px; max-width: 580px; width: 90%; max-height: 90vh; overflow-y: auto; border: 1px solid var(--border-color); }
-    .modal-header { padding: 22px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
-    .modal-title { font-size: 19px; font-weight: 600; color: var(--text-primary); }
-    .modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-muted); }
-    .modal-body { padding: 22px 25px; }
-    .form-group { margin-bottom: 17px; }
-    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
-    label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-    input[type="text"], input[type="password"], input[type="url"] { width: 100%; padding: 11px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; background: var(--bg-input); color: var(--text-primary); transition: border-color .2s; }
-    input:focus { outline: none; border-color: var(--accent); }
-    .checkbox-group { display: flex; align-items: center; gap: 10px; }
-    .checkbox-group input { width: auto; }
-    .empty-card { background: var(--bg-card); border-radius: 14px; border: 1px solid var(--border-color); padding: 60px 20px; text-align: center; color: var(--text-muted); }
-    @media(max-width:768px){ .main-content{ margin-left:0!important; } .form-grid{ grid-template-columns:1fr; } }
-</style>
 
 <div class="page-header">
     <h1 class="page-title"><?= __('sites_title') ?></h1>
@@ -210,7 +166,7 @@ $currentPage = 'sites';
                 <?= $site['is_active'] ? __('sites_deactivate') : __('sites_activate') ?>
             </a>
             <a href="?delete=<?= $site['id'] ?>&token=<?= $auth->getCsrfToken() ?>"
-               class="btn btn-danger btn-sm"
+               class="btn btn-danger-soft btn-sm"
                onclick="return confirm('Möchten Sie diese Site wirklich löschen?')">
                 <i class="fas fa-trash"></i>
             </a>
@@ -220,7 +176,7 @@ $currentPage = 'sites';
 </div>
 <?php endif; ?>
 
-</div><!-- /main-content -->
+</main>
 
 <!-- Add Site Modal -->
 <div id="addSiteModal" class="modal">

admin/templates.php

@@ -100,51 +100,11 @@ $adminBase   = '';
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('templates_title') ?> - <?= htmlspecialchars($appTitle) ?></title>
     <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-    <style>
-        .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; flex-wrap: wrap; gap: 15px; }
-        .page-title  { font-size: 28px; font-weight: 600; color: var(--text-primary); }
-        .alert { padding: 14px 20px; border-radius: 10px; margin-bottom: 25px; font-size: 14px; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .card { background: var(--bg-card); border-radius: 15px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); overflow: hidden; margin-bottom: 25px; }
-        .card-header { padding: 20px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
-        .card-title  { font-size: 18px; font-weight: 600; color: var(--text-primary); }
-        .table { width: 100%; border-collapse: collapse; }
-        .table th { text-align: left; padding: 12px 15px; background: var(--bg-table-head); color: var(--text-secondary); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
-        .table td { padding: 14px 15px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); font-size: 14px; }
-        .table tr:last-child td { border-bottom: none; }
-        .table tr:hover td { background: var(--bg-hover); }
-        .badge { display: inline-block; padding: 3px 10px; border-radius: 6px; font-size: 11px; font-weight: 500; }
-        .badge-success { background: #d4edda; color: #155724; }
-        .badge-secondary { background: var(--bg-hover); color: var(--text-muted); }
-        .btn-primary  { background: var(--accent); color: white; }
-        .btn-primary:hover { background: var(--accent-hover); }
-        .btn-danger   { background: var(--danger); color: white; }
-        .btn-small    { padding: 6px 12px; font-size: 12px; }
-        .modal { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--modal-overlay); z-index: 500; align-items: center; justify-content: center; }
-        .modal.active { display: flex; }
-        .modal-content { background: var(--bg-card); border-radius: 15px; max-width: 520px; width: 90%; max-height: 90vh; overflow-y: auto; }
-        .modal-header { padding: 22px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
-        .modal-title  { font-size: 18px; font-weight: 600; color: var(--text-primary); }
-        .modal-close  { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-muted); }
-        .modal-body   { padding: 25px; }
-        .form-group   { margin-bottom: 18px; }
-        label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="text"], input[type="number"], textarea, select { width: 100%; padding: 11px 14px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; background: var(--bg-input); color: var(--text-primary); transition: border-color 0.2s; font-family: inherit; }
-        input:focus, textarea:focus { outline: none; border-color: var(--accent); }
-        .checkbox-group { display: flex; align-items: center; gap: 10px; }
-        .checkbox-group input { width: auto; accent-color: var(--accent); }
-        .help-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
-        .empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
-        .empty-state i { font-size: 48px; margin-bottom: 20px; opacity: 0.3; display: block; }
-        .duration-badge { display: inline-flex; align-items: center; gap: 5px; background: var(--bg-hover); padding: 3px 10px; border-radius: 20px; font-size: 12px; color: var(--text-secondary); }
-    </style>
-</head>
 
     <div class="page-header">
         <div>
             <h1 class="page-title"><?= __('templates_title') ?></h1>
-            <p style="color: var(--text-muted); font-size: 14px; margin-top: 5px;"><?= __('templates_subtitle') ?></p>
+            <p class="page-subtitle"><?= __('templates_subtitle') ?></p>
         </div>
         <button onclick="openAddModal()" class="btn btn-primary">
             <i class="fas fa-plus"></i> <?= __('templates_add') ?>
@@ -172,6 +132,7 @@ $adminBase   = '';
             </div>
         <?php else: ?>
             <div style="overflow-x: auto;">
+                <div class="table-container">
                 <table class="table">
                     <thead>
                         <tr>
@@ -216,17 +177,18 @@ $adminBase   = '';
                                         class="btn btn-secondary btn-small"><i class="fas fa-edit"></i></button>
                                 <a href="?delete=<?= $t['id'] ?>&token=<?= $auth->getCsrfToken() ?>"
                                    onclick="return confirm('Profil wirklich löschen?')"
-                                   class="btn btn-danger btn-small"><i class="fas fa-trash"></i></a>
+                                   class="btn btn-danger-soft btn-small"><i class="fas fa-trash"></i></a>
                             </td>
                         </tr>
                         <?php endforeach; ?>
                     </tbody>
                 </table>
                 </div>
+            </div>
         <?php endif; ?>
     </div>
 
-</div><!-- main-content -->
+</main>
 
 <!-- Modal: Hinzufügen -->
 <div id="addModal" class="modal">

admin/users.php

@@ -171,52 +171,6 @@ $currentPage = 'users';
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('users_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
 <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
-    .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
-    .page-title { font-size: 26px; font-weight: 700; color: var(--text-primary); }
-    .card { background: var(--bg-card); border-radius: 14px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); overflow: hidden; margin-bottom: 24px; }
-    .card-header { padding: 18px 22px; border-bottom: 1px solid var(--border-color); }
-    .card-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }
-    .alert { padding: 13px 18px; border-radius: 10px; font-size: 14px; margin-bottom: 20px; }
-    .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-    .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-    .table { width: 100%; border-collapse: collapse; }
-    .table th { text-align: left; padding: 12px 15px; background: var(--bg-table-head); color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
-    .table td { padding: 13px 15px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); font-size: 14px; }
-    .table tr:last-child td { border-bottom: none; }
-    .table tr:hover { background: var(--bg-hover); }
-    .badge { display: inline-block; padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 500; margin: 2px; }
-    .badge-success { background: #d4edda; color: #155724; }
-    .badge-warning { background: #fff3cd; color: #856404; }
-    .badge-danger  { background: #f8d7da; color: #721c24; }
-    .badge-info    { background: var(--bg-badge-info); color: var(--text-badge-info); }
-    .btn { padding: 8px 16px; border-radius: 8px; border: none; font-weight: 500; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: all .2s; font-size: 13px; }
-    .btn-primary { background: var(--accent); color: white; }
-    .btn-primary:hover { background: var(--accent-hover); }
-    .btn-secondary { background: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border-color); }
-    .btn-secondary:hover { background: var(--border-color); }
-    .btn-danger { background: var(--danger); color: white; }
-    .btn-warning { background: var(--warning); color: #333; }
-    .btn-sm { padding: 5px 10px; font-size: 12px; }
-    .modal { display: none; position: fixed; inset: 0; background: var(--modal-overlay); z-index: 1000; align-items: center; justify-content: center; }
-    .modal.active { display: flex; }
-    .modal-content { background: var(--bg-card); border-radius: 14px; max-width: 580px; width: 90%; max-height: 90vh; overflow-y: auto; border: 1px solid var(--border-color); }
-    .modal-header { padding: 22px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
-    .modal-title { font-size: 19px; font-weight: 600; color: var(--text-primary); }
-    .modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-muted); }
-    .modal-body { padding: 22px 25px; }
-    .form-group { margin-bottom: 18px; }
-    label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-    input[type="text"], input[type="email"], input[type="password"] { width: 100%; padding: 11px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; background: var(--bg-input); color: var(--text-primary); transition: border-color .2s; }
-    input:focus { outline: none; border-color: var(--accent); }
-    .checkbox-group { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
-    .checkbox-group input { width: auto; }
-    .site-selection { border: 1px solid var(--border-color); border-radius: 8px; padding: 12px; max-height: 180px; overflow-y: auto; background: var(--bg-hover); }
-    .empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
-    .empty-state i { font-size: 40px; margin-bottom: 15px; opacity: .3; display: block; }
-    .action-btns { display: flex; gap: 5px; flex-wrap: wrap; }
-    @media(max-width:768px){ .main-content{ margin-left:0!important; } .table th:nth-child(5),.table td:nth-child(5){ display:none; } }
-</style>
 
 <div class="page-header">
     <h1 class="page-title"><?= __('users_title') ?></h1>
@@ -239,6 +193,7 @@ $currentPage = 'users';
             <div class="empty-state"><i class="fas fa-users"></i><p><?= __('users_none_found') ?></p></div>
         <?php else: ?>
         <div style="overflow-x:auto;">
+        <div class="table-container">
         <table class="table">
             <thead>
                 <tr>
@@ -320,7 +275,7 @@ $currentPage = 'users';
                                 </a>
                                 <?php endif; ?>
                                 <a href="?delete=<?= $user['id'] ?>&token=<?= $auth->getCsrfToken() ?>"
-                                   class="btn btn-danger btn-sm" title="<?= __('btn_delete') ?>"
+                                   class="btn btn-danger-soft btn-sm" title="<?= __('btn_delete') ?>"
                                    onclick="return confirm('Benutzer wirklich löschen?')">
                                     <i class="fas fa-trash"></i>
                                 </a>
@@ -332,11 +287,12 @@ $currentPage = 'users';
             </tbody>
         </table>
         </div>
+        </div>
         <?php endif; ?>
     </div>
 </div>
 
-</div><!-- /main-content -->
+</main>
 
 <!-- Add User Modal -->
 <div id="addUserModal" class="modal">

admin/vouchers.php

@@ -130,80 +130,20 @@ $currentPage  = 'vouchers';
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('vouchers_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
 <?php include __DIR__ . '/../includes/admin_nav.php'; ?>
-<style>
-    .page-header { margin-bottom: 28px; }
-    .page-title { font-size: 26px; font-weight: 700; color: var(--text-primary); display: flex; align-items: center; gap: 12px; }
-    .page-subtitle { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
-    .live-indicator { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--success); }
-    .live-indicator .dot { width: 8px; height: 8px; background: var(--success); border-radius: 50%; animation: pulse 2s infinite; }
-    @keyframes pulse { 0%,100%{opacity:1}50%{opacity:.5} }
-    .card { background: var(--bg-card); border-radius: 14px; box-shadow: 0 2px 10px var(--shadow); border: 1px solid var(--border-color); margin-bottom: 22px; overflow: hidden; }
-    .card-header { padding: 18px 22px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
-    .card-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }
-    .card-body { padding: 22px; }
-    .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 16px; margin-bottom: 22px; }
-    .stat-card { background: var(--bg-card); padding: 18px; border-radius: 12px; box-shadow: 0 2px 8px var(--shadow); border: 1px solid var(--border-color); }
-    .stat-label { color: var(--text-muted); font-size: 13px; margin-bottom: 6px; }
-    .stat-value { font-size: 28px; font-weight: 700; color: var(--text-primary); }
-    .stat-value.valid { color: var(--success); }
-    .stat-value.used  { color: var(--warning); }
-    .stat-value.expired { color: var(--danger); }
-    .site-selector { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
-    .site-selector select { padding: 10px 14px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; min-width: 220px; cursor: pointer; background: var(--bg-input); color: var(--text-primary); }
-    .site-selector select:focus { outline: none; border-color: var(--accent); }
-    .search-bar { padding: 10px 14px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; background: var(--bg-input); color: var(--text-primary); min-width: 200px; }
-    .search-bar:focus { outline: none; border-color: var(--accent); }
-    .btn { padding: 9px 18px; border-radius: 8px; border: none; font-weight: 500; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: all .2s; font-size: 13px; }
-    .btn-primary { background: var(--accent); color: white; }
-    .btn-primary:hover { background: var(--accent-hover); }
-    .btn-secondary { background: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border-color); }
-    .btn-secondary:hover { background: var(--border-color); }
-    .btn-danger { background: var(--danger); color: white; }
-    .btn-danger:hover { opacity: .88; }
-    .btn-success { background: var(--success); color: white; }
-    .btn-sm { padding: 5px 11px; font-size: 12px; }
-    .btn:disabled { opacity: .55; cursor: not-allowed; }
-    .table-container { overflow-x: auto; }
-    .table { width: 100%; border-collapse: collapse; }
-    .table th { text-align: left; padding: 11px 14px; background: var(--bg-table-head); color: var(--text-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; white-space: nowrap; }
-    .table td { padding: 13px 14px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); font-size: 13px; }
-    .table tr:last-child td { border-bottom: none; }
-    .table tr:hover { background: var(--bg-hover); }
-    .table tr.deleting { opacity: .45; pointer-events: none; }
-    .badge { display: inline-block; padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 500; }
-    .badge-success { background: #d4edda; color: #155724; }
-    .badge-warning { background: #fff3cd; color: #856404; }
-    .badge-danger  { background: #f8d7da; color: #721c24; }
-    .badge-info    { background: var(--bg-badge-info); color: var(--text-badge-info); }
-    code { background: var(--bg-hover); padding: 4px 8px; border-radius: 4px; font-family: 'Courier New', monospace; font-size: 12px; letter-spacing: 1px; }
-    .empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
-    .empty-state i { font-size: 42px; margin-bottom: 18px; opacity: .3; display: block; }
-    .loading { display: flex; align-items: center; justify-content: center; padding: 60px; color: var(--text-muted); gap: 12px; }
-    .loading i { font-size: 22px; animation: spin 1s linear infinite; }
-    @keyframes spin { from{transform:rotate(0)}to{transform:rotate(360deg)} }
-    .filter-row { display: flex; gap: 8px; flex-wrap: wrap; }
-    .filter-btn { padding: 7px 14px; border: 2px solid var(--border-color); background: var(--bg-card); color: var(--text-secondary); border-radius: 8px; cursor: pointer; font-size: 13px; transition: all .2s; }
-    .filter-btn:hover { border-color: var(--accent); }
-    .filter-btn.active { border-color: var(--accent); background: var(--accent); color: white; }
-    .usage-info { display: flex; align-items: center; gap: 6px; }
-    .usage-bar { width: 50px; height: 5px; background: var(--border-color); border-radius: 3px; overflow: hidden; }
-    .usage-bar-fill { height: 100%; background: var(--accent); border-radius: 3px; }
-    .voucher-note { max-width: 180px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
-    .no-sites-warning { background: #fff3cd; border: 1px solid #ffc107; border-radius: 12px; padding: 30px; text-align: center; color: #856404; }
-    @media(max-width:768px){ .main-content{ margin-left:0!important; } }
-</style>
 
 <div class="page-header">
+    <div>
         <h1 class="page-title">
             <?= __('vouchers_title') ?>
             <span class="live-indicator"><span class="dot"></span>LIVE</span>
         </h1>
         <p class="page-subtitle"><?= __('vouchers_subtitle') ?></p>
+    </div>
 </div>
 
 <?php if (empty($sites)): ?>
 <div class="no-sites-warning">
-    <i class="fas fa-exclamation-triangle" style="font-size:48px;margin-bottom:15px;opacity:.7;display:block;"></i>
+    <i class="fas fa-triangle-exclamation" style="font-size:26px;margin-bottom:12px;display:block;"></i>
     <h3><?= __('vouchers_no_sites') ?></h3>
     <a href="sites.php" class="btn btn-primary" style="margin-top:20px;"><i class="fas fa-plus"></i> <?= __('nav_sites') ?></a>
 </div>
@@ -227,7 +167,7 @@ $currentPage  = 'vouchers';
                 <?php endforeach; ?>
             </select>
             <input type="search" id="searchInput" class="search-bar" placeholder="<?= __('vouchers_search') ?>" oninput="filterAndRender()" style="display:none;">
-            <button id="refreshBtn" class="btn btn-success" onclick="loadVouchers(true)" disabled>
+            <button id="refreshBtn" class="btn btn-secondary" onclick="loadVouchers(true)" disabled>
                 <i class="fas fa-sync-alt"></i> <?= __('btn_refresh') ?>
             </button>
         </div>
@@ -258,7 +198,7 @@ $currentPage  = 'vouchers';
 </div>
 <?php endif; ?>
 
-</div><!-- /main-content -->
+</main>
 
 <div id="toast-container"></div>
 <script src="../assets/global.js"></script>
@@ -404,7 +344,7 @@ function renderVouchers() {
             <td>${remaining?`<span style="color:var(--success)"><i class="fas fa-clock"></i> ${remaining}</span><br>`:''}<small style="color:var(--text-muted)">${v.duration} Min.</small></td>
             <td style="white-space:nowrap;">
                 <button onclick="resendVoucher('${v._id}','${escapeHtml(v.formatted_code||'')}')" class="btn btn-secondary btn-sm" title="Per E-Mail senden"><i class="fas fa-envelope"></i></button>
-                <button onclick="deleteVoucher('${v._id}')" class="btn btn-danger btn-sm" title="<?= __('btn_delete') ?>"><i class="fas fa-trash"></i></button>
+                <button onclick="deleteVoucher('${v._id}')" class="btn btn-danger-soft btn-sm" title="<?= __('btn_delete') ?>"><i class="fas fa-trash"></i></button>
             </td>
         </tr>`;
     });

assets/global.js

@@ -17,7 +17,12 @@ function updateDarkModeBtn() {
     const btn = document.getElementById('darkModeBtn');
     if (!btn) return;
     const isDark = document.documentElement.getAttribute('data-theme') === 'dark';
-    btn.textContent = isDark ? '☀️' : '🌙';
+    const icon = btn.querySelector('i');
+    if (icon) {
+        icon.className = isDark ? 'fas fa-sun' : 'fas fa-moon';
+    } else {
+        btn.textContent = isDark ? '☀' : '☾';
+    }
     btn.title = isDark ? 'Light Mode' : 'Dark Mode';
 }
 
@@ -42,8 +47,8 @@ document.addEventListener('DOMContentLoaded', updateDarkModeBtn);
     const icons = {
         success: '✓',
         error: '✕',
-        info: 'ℹ',
+        info: 'i',
-        warning: '⚠'
+        warning: '!'
     };
 
     window.showToast = function(type, title, message, duration) {

forgot_password.php

@@ -83,30 +83,15 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('reset_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <link rel="stylesheet" href="assets/global.css">
     <script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
-    <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
-        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
-        .box { background: var(--bg-card); border-radius: 20px; box-shadow: 0 20px 60px var(--shadow-lg); max-width: 420px; width: 100%; padding: 45px 40px; text-align: center; }
-        .logo { max-width: 180px; height: auto; margin-bottom: 25px; }
-        h1 { color: var(--text-primary); font-size: 26px; margin-bottom: 8px; }
-        .subtitle { color: var(--text-muted); font-size: 14px; margin-bottom: 28px; line-height: 1.5; }
-        .form-group { margin-bottom: 18px; text-align: left; }
-        label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="email"] { width: 100%; padding: 13px; border: 2px solid var(--border-color); border-radius: 10px; font-size: 15px; background: var(--bg-input); color: var(--text-primary); transition: border-color 0.2s; }
-        input:focus { outline: none; border-color: var(--accent); }
-        .btn { width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; transition: all 0.2s; margin-top: 8px; }
-        .btn:hover { background: var(--accent-hover); transform: translateY(-2px); }
-        .alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; text-align: left; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .back-link { display: block; margin-top: 22px; color: var(--accent); text-decoration: none; font-size: 14px; }
-        .back-link:hover { text-decoration: underline; }
-    </style>
 </head>
-<body>
+<body class="app-body focus-page">
-<div class="box">
+<div class="focus-card card">
     <?php if ($logoUrl): ?>
         <img src="<?= htmlspecialchars($logoUrl) ?>" alt="Logo" class="logo">
     <?php else: ?>
@@ -129,11 +114,11 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             <label for="email"><?= __('reset_email_label') ?></label>
             <input type="email" id="email" name="email" required autofocus placeholder="name@example.com">
         </div>
-        <button type="submit" class="btn"><?= __('reset_send_btn') ?></button>
+        <button type="submit" class="btn btn-primary btn-lg btn-block"><?= __('reset_send_btn') ?></button>
     </form>
     <?php endif; ?>
 
-    <a href="login.php" class="back-link"><?= __('reset_back_login') ?></a>
+    <div class="auth-links"><a href="login.php" class="back-link"><i class="fas fa-arrow-left"></i> <?= __('reset_back_login') ?></a></div>
 </div>
 <script src="assets/global.js"></script>
 </body>

includes/admin_nav.php

@@ -8,138 +8,126 @@ $currentPage = $currentPage ?? '';
 $faviconUrl  = isset($db) ? $db->getSetting('favicon_url', '') : '';
 $currentUser = isset($auth) ? $auth->getCurrentUser() : null;
 $lang        = I18n::getLanguage();
+$base        = $adminBase ?? '';          // Prefix bis zum admin/-Ordner
+$rootBase    = $base === '' ? '../' : '';  // Prefix bis zum Projekt-Root
+
+/** Navigation als Datenstruktur – Reihenfolge = Darstellung. */
+$navGroups = [
+    'nav_group_overview' => [
+        ['dashboard', 'index.php',      'fa-chart-pie',       'nav_dashboard'],
+        ['reports',   'reports.php',    'fa-chart-line',      'nav_reports'],
+        ['audit_log', 'audit_log.php',  'fa-clock-rotate-left','nav_audit_log'],
+    ],
+    'nav_group_manage' => [
+        ['vouchers',  'vouchers.php',   'fa-ticket',          'nav_vouchers'],
+        ['templates', 'templates.php',  'fa-layer-group',     'nav_templates'],
+        ['import',    'import.php',     'fa-file-arrow-up',   'nav_import'],
+        ['sites',     'sites.php',      'fa-location-dot',    'nav_sites'],
+        ['users',     'users.php',      'fa-users',           'nav_users'],
+    ],
+    'nav_group_system' => [
+        ['settings',     'settings.php',     'fa-sliders',      'nav_settings'],
+        ['integrations', 'integrations.php', 'fa-plug',         'nav_integrations'],
+        ['api_keys',     'api_keys.php',     'fa-key',          'nav_api_keys'],
+        ['security',     'security.php',     'fa-shield-halved','nav_security'],
+        ['backup',       'backup.php',       'fa-database',     'nav_backup'],
+        ['update',       'update.php',       'fa-rotate',       'nav_update'],
+    ],
+];
+
+/** Aktuellen Seitentitel für die Breadcrumb finden. */
+$currentLabel = __('nav_dashboard');
+foreach ($navGroups as $items) {
+    foreach ($items as $item) {
+        if ($item[0] === $currentPage) { $currentLabel = __($item[3]); }
+    }
+}
 ?>
     <?php if ($faviconUrl): ?>
     <link rel="icon" type="image/x-icon" href="<?= htmlspecialchars($faviconUrl) ?>">
     <?php endif; ?>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="<?= $adminBase ?? '../' ?>assets/global.css">
+    <link rel="stylesheet" href="<?= $rootBase ?>assets/global.css">
     <script>
         (function(){
             const t = localStorage.getItem('theme') || 'light';
             document.documentElement.setAttribute('data-theme', t);
         })();
     </script>
-
-    <style>
-        /* Base admin layout using CSS variables */
-        * { margin: 0; padding: 0; box-sizing: border-box; }
-        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; background: var(--bg-body); color: var(--text-primary); }
-        .header { background: var(--bg-header); border-bottom: 1px solid var(--border-color); padding: 0 30px; height: 70px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 150; box-shadow: 0 2px 10px var(--shadow); }
-        .header-left { display: flex; align-items: center; gap: 12px; }
-        .header-title { font-size: 20px; font-weight: 600; color: var(--text-primary); }
-        .header-right { display: flex; align-items: center; gap: 10px; }
-        .sidebar { position: fixed; left: 0; top: 70px; bottom: 0; width: 260px; background: var(--bg-sidebar); border-right: 1px solid var(--border-color); padding: 20px 0; overflow-y: auto; z-index: 100; }
-        .sidebar-nav { list-style: none; }
-        .sidebar-nav li { margin-bottom: 2px; }
-        .sidebar-nav a { display: flex; align-items: center; gap: 12px; padding: 11px 25px; color: var(--text-secondary); text-decoration: none; transition: all 0.2s; font-size: 14px; border-radius: 0 8px 8px 0; margin-right: 12px; }
-        .sidebar-nav a:hover, .sidebar-nav a.active { background: var(--bg-hover); color: var(--accent); }
-        .sidebar-nav i { width: 18px; text-align: center; font-size: 15px; }
-        .sidebar-section { padding: 16px 25px 6px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
-        .main-content { margin-left: 260px; padding: 30px; min-height: calc(100vh - 70px); }
-        .user-menu { display: flex; align-items: center; gap: 10px; padding: 6px 12px; background: var(--bg-hover); border-radius: 10px; }
-        .user-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); display: flex; align-items: center; justify-content: center; color: white; font-weight: 600; font-size: 14px; flex-shrink: 0; }
-        .user-name { font-weight: 500; font-size: 13px; color: var(--text-primary); }
-        .btn { padding: 8px 16px; border-radius: 8px; border: none; font-weight: 500; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: all 0.2s; font-size: 13px; }
-        .btn-secondary { background: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border-color); }
-        .btn-secondary:hover { background: var(--border-color); color: var(--text-primary); }
-    </style>
 </head>
 <body>
 
-<!-- Sidebar overlay for mobile -->
 <div class="sidebar-overlay" onclick="closeMobileSidebar()"></div>
 
-<div class="header">
+<aside class="sidebar" id="adminSidebar">
+    <a href="<?= $rootBase ?>index.php" class="sidebar-brand">
+        <span class="brand-mark"><i class="fas fa-wifi"></i></span>
+        <span class="brand-text">
+            <span class="brand-name"><?= htmlspecialchars($appTitle ?? 'Voucher Tool') ?></span>
+            <span class="brand-sub"><?= __('nav_administration') ?></span>
+        </span>
+    </a>
+
+    <nav>
+        <?php foreach ($navGroups as $groupKey => $items): ?>
+        <div class="sidebar-section"><?= __($groupKey) ?></div>
+        <ul class="sidebar-nav">
+            <?php foreach ($items as [$key, $href, $icon, $labelKey]): ?>
+            <li>
+                <a href="<?= $base . $href ?>" class="<?= $currentPage === $key ? 'active' : '' ?>">
+                    <i class="fas <?= $icon ?>"></i> <?= __($labelKey) ?>
+                </a>
+            </li>
+            <?php endforeach; ?>
+        </ul>
+        <?php endforeach; ?>
+    </nav>
+
+    <?php if ($currentUser): ?>
+    <div class="sidebar-foot">
+        <div class="user-menu" style="width:100%;justify-content:flex-start;">
+            <div class="user-avatar"><?= strtoupper(mb_substr($currentUser['name'], 0, 1)) ?></div>
+            <div style="min-width:0;flex:1;">
+                <div class="user-name" style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;"><?= htmlspecialchars($currentUser['name']) ?></div>
+                <div class="user-role"><?= htmlspecialchars($currentUser['role'] ?? '') ?></div>
+            </div>
+            <a href="<?= $rootBase ?>logout.php" class="icon-btn" title="<?= __('btn_logout') ?>" style="width:30px;height:30px;font-size:12px;">
+                <i class="fas fa-arrow-right-from-bracket"></i>
+            </a>
+        </div>
+    </div>
+    <?php endif; ?>
+</aside>
+
+<header class="topbar">
     <div class="header-left">
         <button class="mobile-menu-btn" onclick="toggleMobileSidebar()" title="Menu">
             <i class="fas fa-bars"></i>
         </button>
-        <div class="header-title">
+        <div class="breadcrumb">
-            <i class="fas fa-shield-alt" style="color: var(--accent);"></i>
+            <span><?= __('nav_administration') ?></span>
-            <?= __('nav_administration') ?>
+            <span class="sep">/</span>
+            <span class="current"><?= htmlspecialchars($currentLabel) ?></span>
         </div>
     </div>
     <div class="header-right">
-        <!-- Language switcher -->
         <div class="lang-switcher">
             <?php foreach (I18n::getAvailable() as $code => $label): ?>
             <button class="lang-btn <?= $lang === $code ? 'active' : '' ?>"
                     onclick="switchLanguage('<?= $code ?>')"><?= strtoupper($code) ?></button>
             <?php endforeach; ?>
         </div>
-        <!-- Dark mode toggle -->
+        <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">
-        <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">🌙</button>
+            <i class="fas fa-moon"></i>
-        <!-- Back link -->
+        </button>
-        <a href="<?= $adminBase ?? '../' ?>index.php" class="btn btn-secondary">
+        <a href="<?= $rootBase ?>index.php" class="btn btn-secondary">
             <i class="fas fa-arrow-left"></i>
             <span class="hide-mobile"><?= __('nav_back') ?></span>
         </a>
-        <!-- User menu -->
-        <?php if ($currentUser): ?>
-        <div class="user-menu">
-            <div class="user-avatar"><?= strtoupper(mb_substr($currentUser['name'], 0, 1)) ?></div>
-            <div class="user-name hide-mobile"><?= htmlspecialchars($currentUser['name']) ?></div>
     </div>
-        <?php endif; ?>
+</header>
-    </div>
-</div>
 
-<div class="sidebar" id="adminSidebar">
+<main class="main-content">
-    <nav>
-        <div class="sidebar-section">Main</div>
-        <ul class="sidebar-nav">
-            <li><a href="<?= $adminBase ?? '' ?>index.php" class="<?= $currentPage === 'dashboard' ? 'active' : '' ?>">
-                <i class="fas fa-home"></i> <?= __('nav_dashboard') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>sites.php" class="<?= $currentPage === 'sites' ? 'active' : '' ?>">
-                <i class="fas fa-map-marker-alt"></i> <?= __('nav_sites') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>users.php" class="<?= $currentPage === 'users' ? 'active' : '' ?>">
-                <i class="fas fa-users"></i> <?= __('nav_users') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>vouchers.php" class="<?= $currentPage === 'vouchers' ? 'active' : '' ?>">
-                <i class="fas fa-ticket-alt"></i> <?= __('nav_vouchers') ?>
-            </a></li>
-        </ul>
-        <div class="sidebar-section" style="margin-top: 10px;">Tools</div>
-        <ul class="sidebar-nav">
-            <li><a href="<?= $adminBase ?? '' ?>templates.php" class="<?= $currentPage === 'templates' ? 'active' : '' ?>">
-                <i class="fas fa-layer-group"></i> <?= __('nav_templates') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>audit_log.php" class="<?= $currentPage === 'audit_log' ? 'active' : '' ?>">
-                <i class="fas fa-history"></i> <?= __('nav_audit_log') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>reports.php" class="<?= $currentPage === 'reports' ? 'active' : '' ?>">
-                <i class="fas fa-chart-line"></i> <?= __('nav_reports') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>import.php" class="<?= $currentPage === 'import' ? 'active' : '' ?>">
-                <i class="fas fa-file-import"></i> <?= __('nav_import') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>settings.php" class="<?= $currentPage === 'settings' ? 'active' : '' ?>">
-                <i class="fas fa-cog"></i> <?= __('nav_settings') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>api_keys.php" class="<?= $currentPage === 'api_keys' ? 'active' : '' ?>">
-                <i class="fas fa-key"></i> <?= __('nav_api_keys') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>security.php" class="<?= $currentPage === 'security' ? 'active' : '' ?>">
-                <i class="fas fa-user-shield"></i> <?= __('nav_security') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>integrations.php" class="<?= $currentPage === 'integrations' ? 'active' : '' ?>">
-                <i class="fas fa-plug"></i> <?= __('nav_integrations') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>backup.php" class="<?= $currentPage === 'backup' ? 'active' : '' ?>">
-                <i class="fas fa-database"></i> <?= __('nav_backup') ?>
-            </a></li>
-            <li><a href="<?= $adminBase ?? '' ?>update.php" class="<?= $currentPage === 'update' ? 'active' : '' ?>">
-                <i class="fas fa-sync-alt"></i> <?= __('nav_update') ?>
-            </a></li>
-        </ul>
-    </nav>
-</div>
-
-<div class="main-content">
-<style>
-.hide-mobile { }
-@media(max-width:600px) { .hide-mobile { display: none; } }
-</style>

index.php

@@ -284,112 +284,69 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= htmlspecialchars($appTitle) ?></title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <link rel="stylesheet" href="assets/global.css">
     <?php if ($captchaMode === 'hcaptcha' && $hcaptchaSiteKey !== ''): ?>
     <script src="https://js.hcaptcha.com/1/api.js" async defer></script>
     <?php endif; ?>
     <script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
     <?php if ($voucherCreated): ?>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js" integrity="sha512-CNgIRecGo7nphbeZ04Sc13ka07paqdeTu0WR1IM4kNcpmBAUSHSe2keRB6Q5pBUtIxCY7bQMsVB0ANBpd6JDg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js" integrity="sha512-CNgIRecGo7nphbeZ04Sc13ka07paqdeTu0WR1IM4kNcpmBAUSHSQX0FslNhTDadL4O5SAGapGt4FodqL8My0mA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
     <?php endif; ?>
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        /* Seitenspezifisch: Druckansicht der Voucher-Karten.
-        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; padding: 20px; }
+           Die Druckvorlage ist am Bildschirm ausgeblendet und erscheint nur im Druck. */
-        .header { max-width: 1200px; margin: 0 auto 30px; display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); padding: 15px 25px; border-radius: 15px; }
+        #printArea { display: none; }
-        .header-title { color: white; font-size: 20px; font-weight: 600; }
-        .header-right { display: flex; align-items: center; gap: 10px; }
-        .btn-header { background: white; color: #667eea; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: 500; font-size: 14px; transition: all 0.2s; border: none; cursor: pointer; }
-        .btn-header:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
-        .container { max-width: 600px; margin: 0 auto; background: var(--bg-card); border-radius: 20px; box-shadow: 0 20px 60px var(--shadow-lg); padding: 40px; }
-        h1 { text-align: center; color: var(--text-primary); margin-bottom: 30px; font-size: 28px; }
-        .logo { max-width: 250px; display: block; margin: 0 auto 30px; }
-        .alert { padding: 14px; border-radius: 10px; margin-bottom: 25px; font-size: 14px; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .form-group { margin-bottom: 20px; }
-        label { display: block; margin-bottom: 8px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="text"], input[type="number"], input[type="email"], select { width: 100%; padding: 14px; border: 2px solid var(--border-color); border-radius: 10px; font-size: 15px; transition: all 0.2s; background: var(--bg-input); color: var(--text-primary); }
-        input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(102,126,234,0.1); }
-        .btn { width: 100%; padding: 16px; background: var(--accent); color: white; border: none; border-radius: 10px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
-        .btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(102,126,234,0.4); }
-        .btn:disabled { background: #ccc; cursor: not-allowed; transform: none; }
-        .btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); margin-top: 10px; }
-        .btn-outline:hover { background: var(--accent); color: white; }
-        .mode-tabs { display: flex; gap: 8px; margin-bottom: 25px; background: var(--bg-hover); padding: 6px; border-radius: 12px; }
-        .mode-tab { flex: 1; padding: 10px; border: none; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500; background: transparent; color: var(--text-secondary); transition: all 0.2s; }
-        .mode-tab.active { background: var(--bg-card); color: var(--accent); box-shadow: 0 2px 8px var(--shadow); }
-        .template-dropdown { margin-bottom: 20px; padding: 15px; background: var(--bg-hover); border-radius: 12px; border: 2px solid var(--border-color); }
-        .template-dropdown label { color: var(--text-secondary); font-size: 13px; margin-bottom: 6px; }
-        .template-hint { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
-        .voucher-result { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; border-radius: 15px; text-align: center; margin-bottom: 25px; }
-        .voucher-code { font-size: 32px; font-weight: bold; letter-spacing: 2px; margin: 20px 0; font-family: 'Courier New', monospace; cursor: pointer; }
-        .voucher-code:hover { opacity: 0.85; }
-        .voucher-info { font-size: 14px; opacity: 0.9; margin-top: 10px; }
-        .qr-wrapper { display: flex; flex-direction: column; align-items: center; margin: 20px 0 0; }
-        .qr-wrapper canvas, .qr-wrapper img { border: 6px solid white; border-radius: 8px; }
-        .qr-label { font-size: 12px; opacity: 0.8; margin-top: 8px; }
-        .instruction-box { background: var(--bg-hover); padding: 20px; border-radius: 10px; margin-top: 25px; }
-        .instruction-box h3 { color: var(--text-primary); margin-bottom: 10px; font-size: 16px; }
-        .instruction-box p, .instruction-box div { color: var(--text-secondary); line-height: 1.6; font-size: 14px; }
-        .empty-state { text-align: center; padding: 40px; color: var(--text-muted); }
-        .email-option { background: var(--bg-hover); border: 2px solid var(--border-color); border-radius: 12px; padding: 20px; margin: 20px 0; transition: all 0.2s; }
-        .email-option.active { background: var(--bg-hover); border-color: var(--accent); }
-        .email-checkbox-wrapper { display: flex; align-items: center; gap: 12px; cursor: pointer; }
-        .email-checkbox-wrapper input[type="checkbox"] { width: 20px; height: 20px; cursor: pointer; accent-color: var(--accent); }
-        .email-checkbox-wrapper label { margin: 0; cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-primary); display: flex; align-items: center; gap: 8px; }
-        .email-input-wrapper { max-height: 0; overflow: hidden; opacity: 0; transition: all 0.3s; }
-        .email-input-wrapper.show { max-height: 120px; opacity: 1; margin-top: 15px; }
-        .bulk-table { width: 100%; border-collapse: collapse; margin-top: 15px; }
-        .bulk-table th { background: var(--bg-hover); color: var(--text-secondary); padding: 10px 12px; text-align: left; font-size: 12px; text-transform: uppercase; }
-        .bulk-table td { padding: 12px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); font-size: 14px; }
-        .bulk-table tr:last-child td { border-bottom: none; }
-        .bulk-table code { background: var(--bg-hover); padding: 4px 8px; border-radius: 4px; font-family: monospace; letter-spacing: 1px; cursor: pointer; }
-        .bulk-table code:hover { opacity: 0.75; }
-        .copy-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
-        @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
         @media print {
+            #printArea { display: block; }
             body * { visibility: hidden; }
             #printArea, #printArea * { visibility: visible; }
-            #printArea { position: absolute; left: 0; top: 0; width: 100%; background: white; }
+            #printArea { position: absolute; left: 0; top: 0; width: 100%; background: #fff; }
             .no-print { display: none !important; }
             .print-page-break { page-break-after: always; }
         }
-        @media (max-width: 480px) {
-            .container { padding: 25px 20px; border-radius: 15px; }
-            .header { padding: 12px 15px; }
-        }
     </style>
 </head>
-<body>
+<body class="app-body">
 
-<div style="position:fixed;top:15px;right:20px;display:flex;gap:8px;z-index:10;" class="no-print">
+<header class="app-topbar no-print">
+    <a href="index.php" class="brand">
+        <span class="brand-mark"><i class="fas fa-wifi"></i></span>
+        <span class="brand-name"><?= htmlspecialchars($appTitle) ?></span>
+    </a>
+    <div class="app-actions">
         <div class="lang-switcher">
             <?php foreach (I18n::getAvailable() as $code => $label): ?>
             <button class="lang-btn <?= I18n::getLanguage() === $code ? 'active' : '' ?>"
                     onclick="switchLanguage('<?= $code ?>')"><?= strtoupper($code) ?></button>
             <?php endforeach; ?>
         </div>
-    <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">🌙</button>
+        <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">
-</div>
+            <i class="fas fa-moon"></i>
-
+        </button>
-<?php if ($currentUser): ?>
+        <?php if ($currentUser): ?>
-<div class="header no-print">
-    <div class="header-title">👋 <?= __('hello', ['name' => htmlspecialchars($currentUser['name'])]) ?></div>
-    <div class="header-right">
             <?php if ($auth->isAdmin()): ?>
-            <a href="admin/" class="btn-header">⚙️ <?= __('nav_administration') ?></a>
+            <a href="admin/" class="btn btn-secondary">
+                <i class="fas fa-sliders"></i> <span class="hide-mobile"><?= __('nav_administration') ?></span>
+            </a>
             <?php endif; ?>
-        <a href="logout.php" class="btn-header"><?= __('btn_logout') ?></a>
+            <div class="user-menu">
+                <div class="user-avatar"><?= strtoupper(mb_substr($currentUser['name'], 0, 1)) ?></div>
+                <div class="user-name hide-mobile"><?= htmlspecialchars($currentUser['name']) ?></div>
+                <a href="logout.php" class="icon-btn" title="<?= __('btn_logout') ?>" style="width:28px;height:28px;font-size:11px;">
+                    <i class="fas fa-arrow-right-from-bracket"></i>
+                </a>
             </div>
-</div>
+        <?php elseif ($publicAccess): ?>
-<?php elseif ($publicAccess): ?>
+            <a href="login.php" class="btn btn-secondary">
-<div class="header no-print">
+                <i class="fas fa-right-to-bracket"></i> <?= __('btn_login') ?>
-    <div class="header-title"><?= htmlspecialchars($appTitle) ?></div>
+            </a>
-    <div class="header-right">
+        <?php endif; ?>
-        <a href="login.php" class="btn-header">🔐 <?= __('btn_login') ?></a>
     </div>
-</div>
+</header>
-<?php endif; ?>
 
 <div class="container">
     <?php if ($logoUrl && !$voucherCreated && !$bulkCreated): ?>
@@ -397,7 +354,10 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
     <?php endif; ?>
 
     <?php if (!$voucherCreated && !$bulkCreated): ?>
+    <div class="app-card-head">
         <h1><?= htmlspecialchars($appTitle) ?></h1>
+        <p><?= __('app_subtitle') ?></p>
+    </div>
     <?php endif; ?>
 
     <?php if ($error): ?>
@@ -410,13 +370,19 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
         </div>
 
         <div class="voucher-result no-print">
-            <div style="font-size:18px;margin-bottom:10px;"><?= __('voucher_success_title') ?></div>
+            <div class="result-label"><i class="fas fa-circle-check"></i> <?= __('voucher_success_title') ?></div>
             <div class="voucher-code" id="voucherCode" onclick="copyCode()" title="Klicken zum Kopieren">
                 <?= htmlspecialchars($voucherCode) ?>
             </div>
             <div class="voucher-info">
-                <?= str_replace('{minutes}', $voucherData['expire_min'], __('voucher_validity')) ?>
+                <i class="fas fa-copy"></i> <?= __('voucher_copy_hint') ?>
             </div>
+            <div class="voucher-meta">
+                <span><i class="fas fa-clock"></i> <?= str_replace('{minutes}', $voucherData['expire_min'], __('voucher_validity')) ?></span>
+                <span><i class="fas fa-location-dot"></i> <?= htmlspecialchars($voucherData['site_name']) ?></span>
+                <span><i class="fas fa-mobile-screen"></i> <?= (int)$voucherData['max_uses'] ?> <?= __('label_devices') ?></span>
+            </div>
+            <div class="ticket-divider"></div>
             <div class="qr-wrapper no-print">
                 <div id="qrcode"></div>
                 <div class="qr-label"><?= __('voucher_qr_label') ?></div>
@@ -430,15 +396,22 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
         </div>
         <?php endif; ?>
 
-        <form method="get" class="no-print" style="margin-top:15px;">
+        <div class="no-print" style="display:flex;gap:10px;margin-top:18px;">
-            <button type="submit" class="btn"><?= __('btn_new_code') ?></button>
+            <form method="get" style="flex:1;">
-        </form>
+                <button type="submit" class="btn btn-primary btn-lg btn-block">
-        <button onclick="window.print()" class="btn btn-outline no-print" style="margin-top:10px;">
+                    <i class="fas fa-plus"></i> <?= __('btn_new_code') ?>
-            🖨️ <?= __('voucher_print_btn') ?>
                 </button>
+            </form>
+            <button onclick="window.print()" class="btn btn-secondary btn-lg">
+                <i class="fas fa-print"></i> <?= __('voucher_print_btn') ?>
+            </button>
+        </div>
 
     <?php elseif ($bulkCreated): ?>
-        <h1 style="font-size:22px;margin-bottom:20px;"><?= str_replace('{count}', count($bulkVouchers), __('bulk_results')) ?></h1>
+        <div class="app-card-head">
+            <h1><?= str_replace('{count}', count($bulkVouchers), __('bulk_results')) ?></h1>
+            <p><?= __('bulk_results_hint') ?></p>
+        </div>
 
         <div id="printArea">
             <?php foreach ($bulkVouchers as $idx => $bv): ?>
@@ -472,21 +445,21 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                     <?php endforeach; ?>
                 </tbody>
             </table>
-            <p class="copy-hint" style="margin-top:8px;">Code anklicken zum Kopieren</p>
+            <p class="copy-hint"><i class="fas fa-copy"></i> <?= __('voucher_copy_hint') ?></p>
         </div>
 
         <div class="no-print" style="display:flex;gap:10px;margin-top:20px;">
-            <button onclick="window.print()" class="btn" style="flex:1;">
+            <button onclick="window.print()" class="btn btn-primary btn-lg" style="flex:1;">
-                🖨️ <?= __('bulk_print_all') ?>
+                <i class="fas fa-print"></i> <?= __('bulk_print_all') ?>
             </button>
             <form method="get" style="flex:1;">
-                <button type="submit" class="btn btn-outline" style="width:100%;"><?= __('btn_new_code') ?></button>
+                <button type="submit" class="btn btn-secondary btn-lg btn-block"><?= __('btn_new_code') ?></button>
             </form>
         </div>
 
     <?php elseif (empty($sites)): ?>
         <div class="empty-state">
-            <div style="font-size:60px;margin-bottom:20px;opacity:0.3;">📶</div>
+            <div class="empty-icon"><i class="fas fa-wifi"></i></div>
             <p><?= __('voucher_no_sites') ?><br>
             <?php if ($auth->isAdmin()): ?>
                 <a href="admin/" style="color:var(--accent);"><?= __('voucher_no_sites_admin') ?></a>
@@ -570,7 +543,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                     <div class="email-checkbox-wrapper">
                         <input type="checkbox" id="send_email" name="send_email" onchange="toggleEmailField()">
                         <label for="send_email">
-                            ✉️ <?= __('voucher_email_send') ?>
+                            <i class="fas fa-envelope" style="color:var(--accent);"></i> <?= __('voucher_email_send') ?>
                         </label>
                     </div>
                     <div class="email-input-wrapper" id="email_field">
@@ -587,7 +560,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                 <div class="email-option">
                     <div class="email-checkbox-wrapper">
                         <input type="checkbox" id="send_sms" name="send_sms" onchange="document.getElementById('sms_field').style.display=this.checked?'block':'none'">
-                        <label for="send_sms">📱 Code per SMS versenden</label>
+                        <label for="send_sms"><i class="fas fa-comment-sms" style="color:var(--accent);"></i> Code per SMS versenden</label>
                     </div>
                     <div id="sms_field" style="display:none;margin-top:12px;">
                         <label for="recipient_phone">Telefonnummer (international, z.B. +49170…)</label>
@@ -596,8 +569,8 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                 </div>
                 <?php endif; ?>
 
-                <button type="submit" class="btn" id="submitBtn">
+                <button type="submit" class="btn btn-primary btn-lg btn-block" id="submitBtn">
-                    <?= __('voucher_create_btn') ?>
+                    <i class="fas fa-ticket"></i> <?= __('voucher_create_btn') ?>
                 </button>
             </form>
         </div>
@@ -617,7 +590,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                     <label for="bulk_count"><?= __('bulk_quantity') ?></label>
                     <input type="number" id="bulk_count" name="bulk_count"
                            min="1" max="20" value="5" required>
-                    <p style="font-size:12px;color:var(--text-muted);margin-top:5px;"><?= __('bulk_quantity_hint') ?></p>
+                    <p class="form-hint"><?= __('bulk_quantity_hint') ?></p>
                 </div>
 
                 <div class="form-group">
@@ -646,7 +619,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
                     </select>
                 </div>
 
-                <button type="submit" class="btn" id="bulkSubmitBtn">
+                <button type="submit" class="btn btn-primary btn-lg btn-block" id="bulkSubmitBtn">
                     <?= str_replace('{count}', '<span id="bulkCountLabel">5</span>', __('bulk_create_btn')) ?>
                 </button>
             </form>
@@ -670,7 +643,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
         new QRCode(document.getElementById('qrcode'), {
             text: '<?= addslashes($voucherCode) ?>',
             width: 160, height: 160,
-            colorDark: '#ffffff', colorLight: 'transparent',
+            colorDark: '#101625', colorLight: '#ffffff',
             correctLevel: QRCode.CorrectLevel.M
         });
     });
@@ -742,7 +715,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
         const btn = document.getElementById('submitBtn');
         if (!btn || btn.disabled) { e.preventDefault(); return; }
         btn.disabled = true;
-        btn.innerHTML = '⏳ <?= __('voucher_creating') ?>';
+        btn.innerHTML = '<i class="fas fa-circle-notch fa-spin"></i> <?= __('voucher_creating') ?>';
     });
 
     document.getElementById('bulkForm')?.addEventListener('submit', function(e) {
@@ -750,7 +723,7 @@ function buildPrintCard($template, $data, $instructionHeader, $instructionText,
         if (!btn || btn.disabled) { e.preventDefault(); return; }
         const count = document.getElementById('bulk_count').value;
         btn.disabled = true;
-        btn.innerHTML = '⏳ <?= addslashes(str_replace('{count}', "' + count + '", __('bulk_creating'))) ?>';
+        btn.innerHTML = '<i class="fas fa-circle-notch fa-spin"></i> <?= addslashes(str_replace('{count}', "' + count + '", __('bulk_creating'))) ?>';
     });
 
     document.addEventListener('DOMContentLoaded', function() {

install.php

@@ -185,153 +185,54 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>UniFi Voucher System - Installation</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <link rel="stylesheet" href="assets/global.css">
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        /* Installer-spezifisch: Fortschrittsanzeige und Abschnitte */
-        body {
+        .install-head { display: flex; align-items: center; gap: 14px; margin-bottom: 4px; }
-            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+        .progress { position: relative; display: flex; justify-content: space-between; margin: 26px 0 28px; }
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            min-height: 100vh;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            padding: 20px;
-        }
-        .container {
-            background: white;
-            border-radius: 16px;
-            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
-            max-width: 600px;
-            width: 100%;
-            padding: 40px;
-        }
-        h1 { color: #333; margin-bottom: 10px; font-size: 28px; }
-        h2 { color: #667eea; margin-bottom: 20px; font-size: 20px; font-weight: 500; }
-        .progress {
-            display: flex;
-            justify-content: space-between;
-            margin: 30px 0;
-            position: relative;
-        }
         .progress::before {
-            content: '';
+            content: ''; position: absolute; top: 14px; left: 14px; right: 14px;
-            position: absolute;
+            height: 2px; background: var(--border-color); z-index: 0;
-            top: 15px;
-            left: 0;
-            right: 0;
-            height: 2px;
-            background: #e0e0e0;
-            z-index: 0;
         }
         .progress-step {
-            width: 30px;
+            position: relative; z-index: 1;
-            height: 30px;
+            width: 28px; height: 28px; border-radius: 50%;
-            border-radius: 50%;
+            display: flex; align-items: center; justify-content: center;
-            background: #e0e0e0;
+            background: var(--bg-card); border: 1px solid var(--border-color);
-            display: flex;
+            color: var(--text-muted); font-size: 12px; font-weight: 650;
-            align-items: center;
-            justify-content: center;
-            font-weight: bold;
-            color: #999;
-            position: relative;
-            z-index: 1;
-        }
-        .progress-step.active {
-            background: #667eea;
-            color: white;
-        }
-        .progress-step.completed {
-            background: #4caf50;
-            color: white;
-        }
-        .form-group {
-            margin-bottom: 20px;
-        }
-        label {
-            display: block;
-            margin-bottom: 8px;
-            color: #555;
-            font-weight: 500;
-        }
-        input[type="text"],
-        input[type="email"],
-        input[type="password"],
-        textarea {
-            width: 100%;
-            padding: 12px;
-            border: 2px solid #e0e0e0;
-            border-radius: 8px;
-            font-size: 14px;
-            transition: border-color 0.3s;
-        }
-        input:focus, textarea:focus {
-            outline: none;
-            border-color: #667eea;
-        }
-        textarea {
-            resize: vertical;
-            min-height: 80px;
-        }
-        .checkbox-group {
-            display: flex;
-            align-items: center;
-        }
-        .checkbox-group input {
-            width: auto;
-            margin-right: 10px;
-        }
-        .btn {
-            background: #667eea;
-            color: white;
-            padding: 14px 30px;
-            border: none;
-            border-radius: 8px;
-            font-size: 16px;
-            font-weight: 600;
-            cursor: pointer;
-            transition: background 0.3s;
-            width: 100%;
-        }
-        .btn:hover {
-            background: #5568d3;
-        }
-        .error {
-            background: #fee;
-            border: 1px solid #fcc;
-            color: #c33;
-            padding: 12px;
-            border-radius: 8px;
-            margin-bottom: 20px;
-        }
-        .success {
-            background: #efe;
-            border: 1px solid #cfc;
-            color: #3c3;
-            padding: 12px;
-            border-radius: 8px;
-            margin-bottom: 20px;
-        }
-        .help-text {
-            font-size: 12px;
-            color: #999;
-            margin-top: 4px;
         }
+        .progress-step.active    { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: var(--ring); }
+        .progress-step.completed { background: var(--success); border-color: var(--success); color: #fff; }
         .section {
-            background: #f8f9fa;
+            padding: 18px;
-            padding: 20px;
-            border-radius: 8px;
             margin-bottom: 20px;
+            background: var(--bg-subtle);
+            border: 1px solid var(--border-color);
+            border-radius: var(--r-md);
         }
-        .section h3 {
+        .section h3 { font-size: 14px; margin-bottom: 14px; }
-            margin-bottom: 15px;
+        .error, .success {
-            color: #333;
+            padding: 12px 15px; margin-bottom: 20px;
-            font-size: 16px;
+            border-radius: var(--r-md); font-size: 13.5px;
+            border: 1px solid var(--danger-border); background: var(--danger-soft); color: var(--danger);
         }
+        .success { border-color: var(--success-border); background: var(--success-soft); color: var(--success); }
+        form > h3 { font-size: 15px; margin-bottom: 16px; }
     </style>
 </head>
-<body>
+<body class="app-body focus-page">
-    <div class="container">
+    <div class="focus-card card">
-        <h1>🚀 UniFi Voucher System</h1>
+        <div class="install-head">
-        <h2>Installation</h2>
+            <span class="focus-icon"><i class="fas fa-rocket"></i></span>
+            <div>
+                <h1 style="font-size:20px;">UniFi Voucher System</h1>
+                <p class="sub">Installation in fünf Schritten</p>
+            </div>
+        </div>
         
         <div class="progress">
             <div class="progress-step <?= $step >= 1 ? 'completed' : '' ?>">1</div>
@@ -354,7 +255,7 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
                 <strong>✓ Installation erfolgreich abgeschlossen!</strong><br>
                 Sie können sich jetzt mit Ihren Admin-Zugangsdaten anmelden.
             </div>
-            <a href="index.php" class="btn">Zum Login</a>
+            <a href="index.php" class="btn btn-primary btn-lg btn-block">Zum Login</a>
         <?php elseif ($step === 1): ?>
             <form method="post">
                 <input type="hidden" name="step" value="2">
@@ -382,7 +283,7 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
                     <input type="password" name="db_pass">
                 </div>
                 
-                <button type="submit" class="btn">Weiter →</button>
+                <button type="submit" class="btn btn-primary btn-lg btn-block">Weiter <i class="fas fa-arrow-right"></i></button>
             </form>
         
         <?php elseif ($step === 2): ?>
@@ -411,7 +312,7 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
                     <input type="password" name="admin_password_confirm" required>
                 </div>
                 
-                <button type="submit" class="btn">Weiter →</button>
+                <button type="submit" class="btn btn-primary btn-lg btn-block">Weiter <i class="fas fa-arrow-right"></i></button>
             </form>
         
         <?php elseif ($step === 3): ?>
@@ -461,7 +362,7 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
                     <div class="help-text">Leer lassen, wenn M365-Login nicht verwendet werden soll</div>
                 </div>
                 
-                <button type="submit" class="btn">Weiter →</button>
+                <button type="submit" class="btn btn-primary btn-lg btn-block">Weiter <i class="fas fa-arrow-right"></i></button>
             </form>
         
         <?php elseif ($step === 4): ?>
@@ -474,7 +375,7 @@ if ($step === 5 && $_SERVER['REQUEST_METHOD'] === 'POST') {
                     Die Datenbank und alle notwendigen Dateien werden erstellt.
                 </p>
                 
-                <button type="submit" class="btn">Installation abschließen</button>
+                <button type="submit" class="btn btn-primary btn-lg btn-block">Installation abschließen</button>
             </form>
         <?php endif; ?>
     </div>

lang/de.php

@@ -1,6 +1,9 @@
 <?php
 return [
     // Navigation
+    'nav_group_overview'=> 'Übersicht',
+    'nav_group_manage'  => 'Verwaltung',
+    'nav_group_system'  => 'System',
     'nav_dashboard'     => 'Dashboard',
     'nav_sites'         => 'Sites verwalten',
     'nav_users'         => 'Benutzer verwalten',
@@ -98,7 +101,9 @@ return [
     'voucher_email_hint'    => 'gast@example.com',
     'voucher_create_btn'    => 'Voucher erstellen',
     'voucher_creating'      => 'Erstelle Voucher...',
-    'voucher_success_title' => '✓ Ihr Zugangs-Code',
+    'voucher_success_title' => 'Zugangs-Code erstellt',
+    'voucher_copy_hint'     => 'Code antippen zum Kopieren',
+    'app_subtitle'          => 'WLAN-Zugangscodes in Sekunden erstellen – für Gäste, Teams und Events.',
     'voucher_validity'      => 'Gültig für {minutes} Minuten ab Erstellung',
     'voucher_qr_label'      => 'QR-Code scannen zum Verbinden',
     'voucher_print_btn'     => 'Code ausdrucken',
@@ -119,6 +124,7 @@ return [
     'bulk_success'      => '{count} Vouchers erfolgreich erstellt!',
     'bulk_print_all'    => 'Alle ausdrucken',
     'bulk_results'      => 'Erstellte Vouchers ({count})',
+    'bulk_results_hint' => 'Alle Codes sind sofort gültig und können gedruckt oder kopiert werden.',
 
     // Templates
     'templates_title'   => 'Voucher-Profile',
@@ -214,6 +220,25 @@ return [
     // Settings
     'settings_title'    => 'Einstellungen',
     'settings_subtitle' => 'System-Konfiguration und Personalisierung',
+    'settings_tab_login'          => 'Login-Seite',
+    'settings_login_intro'        => 'Aussehen und Texte der Anmeldeseite. Leere Felder verwenden die Standardwerte.',
+    'settings_login_panel'        => 'Linke Bildspalte (Split-Screen) anzeigen',
+    'settings_login_brand'        => 'Firmenname',
+    'settings_login_brand_hint'   => 'Leer = Anwendungstitel wird verwendet.',
+    'settings_login_logo'         => 'Logo (URL)',
+    'settings_login_logo_hint'    => 'Leer = allgemeines Logo aus dem Tab „Allgemein".',
+    'settings_login_claim_title'  => 'Überschrift',
+    'settings_login_claim_text'   => 'Beschreibungstext',
+    'settings_login_features'     => 'Stichpunkte',
+    'settings_login_features_hint'=> 'Ein Stichpunkt pro Zeile. Leer lassen, um keine Liste anzuzeigen.',
+    'settings_login_footer'       => 'Fußzeile',
+    'settings_login_bg_image'     => 'Hintergrundbild (URL)',
+    'settings_login_bg_image_hint'=> 'Optional. Wird formatfüllend angezeigt; ohne Bild gilt der Farbverlauf.',
+    'settings_login_bg_from'      => 'Verlauf: Startfarbe',
+    'settings_login_bg_to'        => 'Verlauf: Endfarbe',
+    'settings_login_overlay'      => 'Abdunklung des Bildes (%)',
+    'settings_login_overlay_hint' => '0–90 %. Höhere Werte machen den Text auf hellen Bildern besser lesbar.',
+    'settings_login_preview'      => 'Vorschau öffnen',
     'settings_tab_general'  => 'Allgemein',
     'settings_tab_defaults' => 'Voucher-Standards',
     'settings_tab_cron'     => 'Cron-Sync',
@@ -244,13 +269,18 @@ return [
 
     // Login / Auth
     'login_title'       => 'Anmelden',
+    'auth_claim_title'  => 'WLAN-Gastzugänge, zentral verwaltet.',
+    'auth_claim_text'   => 'Vouchers für alle UniFi-Sites erstellen, versenden und auswerten – aus einer Oberfläche.',
+    'auth_feature_1'    => 'Voucher per E-Mail, SMS oder QR-Code',
+    'auth_feature_2'    => 'Rollen, 2FA und vollständiges Audit-Log',
+    'auth_feature_3'    => 'Live-Statistiken je Site und Benutzer',
     'login_subtitle'    => 'Melden Sie sich an, um fortzufahren',
     'login_email'       => 'E-Mail',
     'login_password'    => 'Passwort',
     'login_btn'         => 'Anmelden',
     'login_ms'          => 'Mit Microsoft anmelden',
     'login_local'       => 'Mit Benutzername und Passwort anmelden',
-    'login_back'        => '← Zurück zur Code-Erstellung',
+    'login_back'        => 'Zurück zur Code-Erstellung',
     'login_forgot'      => 'Passwort vergessen?',
     'login_error_empty' => 'Bitte E-Mail und Passwort eingeben',
     'login_error_rate'  => 'Zu viele Fehlversuche. Bitte warten Sie 10 Minuten.',
@@ -262,7 +292,7 @@ return [
     'reset_email_label' => 'E-Mail-Adresse',
     'reset_send_btn'    => 'Reset-Link senden',
     'reset_success'     => 'Falls ein Konto mit dieser E-Mail existiert, erhalten Sie in Kürze eine E-Mail.',
-    'reset_back_login'  => '← Zurück zum Login',
+    'reset_back_login'  => 'Zurück zum Login',
     'reset_new_pw'      => 'Neues Passwort festlegen',
     'reset_new_pw_label'=> 'Neues Passwort',
     'reset_confirm_label'=> 'Passwort bestätigen',

lang/en.php

@@ -1,6 +1,9 @@
 <?php
 return [
     // Navigation
+    'nav_group_overview'=> 'Overview',
+    'nav_group_manage'  => 'Management',
+    'nav_group_system'  => 'System',
     'nav_dashboard'     => 'Dashboard',
     'nav_sites'         => 'Manage Sites',
     'nav_users'         => 'Manage Users',
@@ -98,7 +101,9 @@ return [
     'voucher_email_hint'    => 'guest@example.com',
     'voucher_create_btn'    => 'Create Voucher',
     'voucher_creating'      => 'Creating Voucher...',
-    'voucher_success_title' => '✓ Your Access Code',
+    'voucher_success_title' => 'Access code created',
+    'voucher_copy_hint'     => 'Tap the code to copy it',
+    'app_subtitle'          => 'Create Wi-Fi access codes in seconds – for guests, teams and events.',
     'voucher_validity'      => 'Valid for {minutes} minutes from creation',
     'voucher_qr_label'      => 'Scan QR code to connect',
     'voucher_print_btn'     => 'Print Code',
@@ -119,6 +124,7 @@ return [
     'bulk_success'      => '{count} vouchers created successfully!',
     'bulk_print_all'    => 'Print All',
     'bulk_results'      => 'Created Vouchers ({count})',
+    'bulk_results_hint' => 'All codes are valid immediately and can be printed or copied.',
 
     // Templates
     'templates_title'   => 'Voucher Profiles',
@@ -214,6 +220,25 @@ return [
     // Settings
     'settings_title'    => 'Settings',
     'settings_subtitle' => 'System configuration and customization',
+    'settings_tab_login'          => 'Login page',
+    'settings_login_intro'        => 'Appearance and wording of the sign-in page. Empty fields fall back to the defaults.',
+    'settings_login_panel'        => 'Show left image column (split screen)',
+    'settings_login_brand'        => 'Company name',
+    'settings_login_brand_hint'   => 'Empty = application title is used.',
+    'settings_login_logo'         => 'Logo (URL)',
+    'settings_login_logo_hint'    => 'Empty = general logo from the "General" tab.',
+    'settings_login_claim_title'  => 'Headline',
+    'settings_login_claim_text'   => 'Description',
+    'settings_login_features'     => 'Bullet points',
+    'settings_login_features_hint'=> 'One bullet per line. Leave empty to hide the list.',
+    'settings_login_footer'       => 'Footer',
+    'settings_login_bg_image'     => 'Background image (URL)',
+    'settings_login_bg_image_hint'=> 'Optional. Displayed full-bleed; without an image the gradient is used.',
+    'settings_login_bg_from'      => 'Gradient: start colour',
+    'settings_login_bg_to'        => 'Gradient: end colour',
+    'settings_login_overlay'      => 'Image dimming (%)',
+    'settings_login_overlay_hint' => '0–90%. Higher values keep text readable on bright images.',
+    'settings_login_preview'      => 'Open preview',
     'settings_tab_general'  => 'General',
     'settings_tab_defaults' => 'Voucher Defaults',
     'settings_tab_cron'     => 'Cron Sync',
@@ -244,13 +269,18 @@ return [
 
     // Login / Auth
     'login_title'       => 'Sign In',
+    'auth_claim_title'  => 'Wi-Fi guest access, centrally managed.',
+    'auth_claim_text'   => 'Create, deliver and analyse vouchers for every UniFi site from a single interface.',
+    'auth_feature_1'    => 'Vouchers via email, SMS or QR code',
+    'auth_feature_2'    => 'Roles, 2FA and a complete audit log',
+    'auth_feature_3'    => 'Live statistics per site and user',
     'login_subtitle'    => 'Sign in to continue',
     'login_email'       => 'Email',
     'login_password'    => 'Password',
     'login_btn'         => 'Sign In',
     'login_ms'          => 'Sign in with Microsoft',
     'login_local'       => 'Sign in with username and password',
-    'login_back'        => '← Back to Code Creation',
+    'login_back'        => 'Back to Code Creation',
     'login_forgot'      => 'Forgot password?',
     'login_error_empty' => 'Please enter email and password',
     'login_error_rate'  => 'Too many failed attempts. Please wait 10 minutes.',
@@ -262,7 +292,7 @@ return [
     'reset_email_label' => 'Email Address',
     'reset_send_btn'    => 'Send Reset Link',
     'reset_success'     => 'If an account with this email exists, you will receive an email shortly.',
-    'reset_back_login'  => '← Back to Login',
+    'reset_back_login'  => 'Back to Login',
     'reset_new_pw'      => 'Set New Password',
     'reset_new_pw_label'=> 'New Password',
     'reset_confirm_label'=> 'Confirm Password',

login.php

@@ -10,7 +10,10 @@ require_once __DIR__ . '/includes/I18n.php';
 
 try {
     $auth = new Auth();
-    if ($auth->isLoggedIn()) { header('Location: index.php'); exit; }
+    // Angemeldete Admins koennen die Login-Seite mit ?preview=1 ansehen
+    // (Vorschau aus den Einstellungen), ohne abgemeldet zu werden.
+    $isPreview = isset($_GET['preview']) && $auth->isLoggedIn() && $auth->isAdmin();
+    if ($auth->isLoggedIn() && !$isPreview) { header('Location: index.php'); exit; }
 } catch (Exception $e) {
     die('Fehler beim Initialisieren: ' . $e->getMessage());
 }
@@ -117,6 +120,34 @@ try {
 
     $showLocalLogin = isset($_GET['local']) && $_GET['local'] === '1';
 
+    // --- Individualisierung der Login-Seite -------------------------------
+    // Alle Werte sind optional; leer bedeutet "Standard verwenden".
+    $loginBrand   = $db->getSetting('login_brand_name', '') ?: $appTitle;
+    $loginLogo    = $db->getSetting('login_logo_url', '') ?: $logoUrl;
+    $showPanel    = $db->getSetting('login_panel_enabled', '1') === '1';
+    $claimTitle   = $db->getSetting('login_claim_title', '') ?: __('auth_claim_title');
+    $claimText    = $db->getSetting('login_claim_text', '') ?: __('auth_claim_text');
+
+    $featureRaw   = trim((string)$db->getSetting('login_features', ''));
+    if ($featureRaw !== '') {
+        $loginFeatures = array_values(array_filter(array_map('trim', preg_split('/\r\n|\r|\n/', $featureRaw))));
+    } else {
+        $loginFeatures = [__('auth_feature_1'), __('auth_feature_2'), __('auth_feature_3')];
+    }
+
+    $loginFooter  = $db->getSetting('login_footer', '') ?: ('© ' . date('Y') . ' ' . $loginBrand);
+    $loginBgImage = trim((string)$db->getSetting('login_bg_image', ''));
+    $loginBgFrom  = $db->getSetting('login_bg_from', '') ?: '#3b2f8f';
+    $loginBgTo    = $db->getSetting('login_bg_to', '')   ?: '#6d5ce7';
+    $loginOverlay = max(0, min(90, (int)$db->getSetting('login_bg_overlay', '40')));
+
+    $visualStyle  = '--login-from:' . htmlspecialchars($loginBgFrom, ENT_QUOTES)
+                  . ';--login-to:' . htmlspecialchars($loginBgTo, ENT_QUOTES)
+                  . ';--login-overlay:' . ($loginOverlay / 100);
+    if ($loginBgImage !== '') {
+        $visualStyle .= ";--login-image:url('" . htmlspecialchars($loginBgImage, ENT_QUOTES) . "')";
+    }
+
 } catch (Exception $e) {
     die('Datenbankfehler: ' . $e->getMessage());
 }
@@ -127,57 +158,65 @@ try {
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('login_title') ?> – <?= htmlspecialchars($appTitle) ?></title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <link rel="stylesheet" href="assets/global.css">
     <script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
-    <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
-        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
-        .login-container { background: var(--bg-card); border-radius: 20px; box-shadow: 0 20px 60px var(--shadow-lg); max-width: 420px; width: 100%; padding: 50px 40px; text-align: center; }
-        .logo { max-width: 200px; height: auto; margin-bottom: 30px; }
-        h1 { color: var(--text-primary); font-size: 28px; margin-bottom: 10px; }
-        .subtitle { color: var(--text-muted); font-size: 14px; margin-bottom: 30px; }
-        .form-group { margin-bottom: 20px; text-align: left; }
-        label { display: block; margin-bottom: 8px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="email"], input[type="password"] { width: 100%; padding: 14px; border: 2px solid var(--border-color); border-radius: 10px; font-size: 15px; background: var(--bg-input); color: var(--text-primary); transition: all 0.2s; }
-        input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(102,126,234,0.1); }
-        .btn { width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 10px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.2s; margin-top: 10px; }
-        .btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(102,126,234,0.4); }
-        .btn-microsoft { background: #2f2f2f; color: white; border: none; margin-top: 0; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 16px 24px; border-radius: 10px; width: 100%; font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
-        .btn-microsoft:hover { background: #1a1a1a; transform: translateY(-2px); }
-        .btn-microsoft svg { width: 20px; height: 20px; }
-        .divider { margin: 22px 0; text-align: center; position: relative; }
-        .divider::before { content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 1px; background: var(--border-color); }
-        .divider span { background: var(--bg-card); padding: 0 15px; color: var(--text-muted); font-size: 13px; position: relative; z-index: 1; }
-        .alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .back-link { display: block; margin-top: 20px; color: var(--accent); text-decoration: none; font-size: 14px; }
-        .back-link:hover { text-decoration: underline; }
-        .local-login-link { display: block; margin-top: 20px; color: var(--text-muted); text-decoration: none; font-size: 13px; }
-        .local-login-link:hover { color: var(--accent); text-decoration: underline; }
-        .forgot-link { display: block; margin-top: 12px; text-align: right; color: var(--text-muted); font-size: 13px; text-decoration: none; }
-        .forgot-link:hover { color: var(--accent); text-decoration: underline; }
-        .header-tools { position: absolute; top: 20px; right: 20px; display: flex; gap: 8px; }
-    </style>
 </head>
-<body>
+<body class="auth-body<?= $showPanel ? '' : ' auth-body-single' ?>">
-<div style="position:fixed;top:15px;right:20px;display:flex;gap:8px;z-index:10;">
+
+<?php if ($showPanel): ?>
+<section class="auth-visual<?= $loginBgImage !== '' ? ' has-image' : '' ?>" style="<?= $visualStyle ?>">
+    <div class="auth-brand">
+        <?php if ($loginLogo): ?>
+            <img src="<?= htmlspecialchars($loginLogo) ?>" alt="<?= htmlspecialchars($loginBrand) ?>" class="auth-brand-logo">
+        <?php else: ?>
+            <span class="brand-mark"><i class="fas fa-wifi"></i></span>
+            <span><?= htmlspecialchars($loginBrand) ?></span>
+        <?php endif; ?>
+    </div>
+    <div class="auth-claim">
+        <?php if ($claimTitle !== ''): ?><h2><?= htmlspecialchars($claimTitle) ?></h2><?php endif; ?>
+        <?php if ($claimText !== ''): ?><p><?= htmlspecialchars($claimText) ?></p><?php endif; ?>
+        <?php if (!empty($loginFeatures)): ?>
+        <ul class="auth-features">
+            <?php foreach ($loginFeatures as $feature): ?>
+            <li><span class="tick"><i class="fas fa-check"></i></span> <?= htmlspecialchars($feature) ?></li>
+            <?php endforeach; ?>
+        </ul>
+        <?php endif; ?>
+    </div>
+    <div class="auth-foot"><?= htmlspecialchars($loginFooter) ?></div>
+</section>
+<?php endif; ?>
+
+<section class="auth-panel">
+    <div class="auth-tools">
         <div class="lang-switcher">
             <?php foreach (I18n::getAvailable() as $code => $label): ?>
             <button class="lang-btn <?= I18n::getLanguage() === $code ? 'active' : '' ?>"
                     onclick="switchLanguage('<?= $code ?>')"><?= strtoupper($code) ?></button>
             <?php endforeach; ?>
         </div>
-    <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">🌙</button>
+        <button id="darkModeBtn" class="dark-mode-toggle" onclick="toggleDarkMode()" title="Dark Mode">
-</div>
+            <i class="fas fa-moon"></i>
+        </button>
+    </div>
 
 <div class="login-container">
-    <?php if ($logoUrl): ?>
+    <?php if (!$showPanel): ?>
-        <img src="<?= htmlspecialchars($logoUrl) ?>" alt="Logo" class="logo">
+        <?php if ($loginLogo): ?>
+            <img src="<?= htmlspecialchars($loginLogo) ?>" alt="<?= htmlspecialchars($loginBrand) ?>" class="logo">
         <?php else: ?>
-        <h1><?= htmlspecialchars($appTitle) ?></h1>
+            <div class="auth-mark">
+                <span class="brand-mark"><i class="fas fa-wifi"></i></span>
+                <span><?= htmlspecialchars($loginBrand) ?></span>
+            </div>
         <?php endif; ?>
-
+    <?php endif; ?>
+    <h1><?= __('login_title') ?></h1>
     <p class="subtitle"><?= __('login_subtitle') ?></p>
 
     <?php if ($error): ?>
@@ -189,20 +228,19 @@ try {
 
     <?php if ($show2fa): ?>
         <form method="post">
-            <p style="color:var(--text-secondary,#666);font-size:14px;margin-bottom:18px;">
+            <p class="subtitle">
                 Bitte geben Sie den 6-stelligen Code aus Ihrer Authenticator-App ein
                 – oder einen Ihrer Recovery-Codes.
             </p>
             <div class="form-group">
                 <label for="totp_code">Code</label>
-                <input type="text" id="totp_code" name="totp_code" maxlength="9"
+                <input type="text" id="totp_code" name="totp_code" maxlength="9" class="code-input"
                        autocomplete="one-time-code" required autofocus
-                       placeholder="123456 oder XXXX-XXXX"
+                       placeholder="123456">
-                       style="letter-spacing:3px;text-align:center;font-size:18px;">
             </div>
-            <button type="submit" class="btn">Bestätigen</button>
+            <button type="submit" class="btn btn-primary btn-lg">Bestätigen</button>
         </form>
-        <a href="login.php" class="local-login-link">Abbrechen</a>
+        <div class="auth-links"><a href="login.php" class="local-login-link">Abbrechen</a></div>
     <?php elseif ($m365Enabled && !$showLocalLogin): ?>
         <a href="<?= htmlspecialchars($m365LoginUrl) ?>" class="btn-microsoft">
             <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 23 23">
@@ -213,7 +251,7 @@ try {
             </svg>
             <?= __('login_ms') ?>
         </a>
-        <a href="?local=1" class="local-login-link"><?= __('login_local') ?></a>
+        <div class="auth-links"><a href="?local=1" class="local-login-link"><?= __('login_local') ?></a></div>
     <?php else: ?>
         <form method="post">
             <div class="form-group">
@@ -227,7 +265,7 @@ try {
             <?php if ($smtpEnabled): ?>
             <a href="forgot_password.php" class="forgot-link"><?= __('login_forgot') ?></a>
             <?php endif; ?>
-            <button type="submit" class="btn"><?= __('login_btn') ?></button>
+            <button type="submit" class="btn btn-primary btn-lg"><?= __('login_btn') ?></button>
         </form>
 
         <?php if ($m365Enabled): ?>
@@ -246,15 +284,16 @@ try {
 
     <?php if (!$show2fa && $oidcEnabled): ?>
         <div class="divider"><span><?= __('or') ?></span></div>
-        <a href="<?= htmlspecialchars($oidcLoginUrl) ?>" class="btn" style="display:block;text-align:center;text-decoration:none;background:#444;">
+        <a href="<?= htmlspecialchars($oidcLoginUrl) ?>" class="btn btn-secondary btn-lg">
-            🔑 <?= htmlspecialchars($oidcName) ?>
+            <i class="fas fa-key"></i> <?= htmlspecialchars($oidcName) ?>
         </a>
     <?php endif; ?>
 
     <?php if ($publicAccess): ?>
-        <a href="index.php" class="back-link"><?= __('login_back') ?></a>
+        <div class="auth-links"><a href="index.php" class="back-link"><i class="fas fa-arrow-left"></i> <?= __('login_back') ?></a></div>
     <?php endif; ?>
 </div>
+</section>
 
 <script src="assets/global.js"></script>
 </body>

login_simple.php

@@ -120,162 +120,22 @@ try {
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Login - <?= htmlspecialchars($appTitle) ?></title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <link rel="stylesheet" href="assets/global.css">
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        /* Diagnose-Ausgabe am Seitenende */
-        body {
-            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            min-height: 100vh;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            padding: 20px;
-        }
-        .login-container {
-            background: white;
-            border-radius: 20px;
-            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
-            max-width: 420px;
-            width: 100%;
-            padding: 50px 40px;
-            text-align: center;
-        }
-        .logo {
-            max-width: 200px;
-            height: auto;
-            margin-bottom: 30px;
-        }
-        h1 {
-            color: #333;
-            font-size: 28px;
-            margin-bottom: 10px;
-        }
-        .subtitle {
-            color: #666;
-            font-size: 14px;
-            margin-bottom: 30px;
-        }
-        .form-group {
-            margin-bottom: 20px;
-            text-align: left;
-        }
-        label {
-            display: block;
-            margin-bottom: 8px;
-            color: #555;
-            font-weight: 500;
-            font-size: 14px;
-        }
-        input[type="email"],
-        input[type="password"] {
-            width: 100%;
-            padding: 14px;
-            border: 2px solid #e0e0e0;
-            border-radius: 10px;
-            font-size: 15px;
-            transition: all 0.3s;
-        }
-        input:focus {
-            outline: none;
-            border-color: #667eea;
-            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
-        }
-        .btn {
-            width: 100%;
-            padding: 14px;
-            background: #667eea;
-            color: white;
-            border: none;
-            border-radius: 10px;
-            font-size: 16px;
-            font-weight: 600;
-            cursor: pointer;
-            transition: all 0.3s;
-            margin-top: 10px;
-        }
-        .btn:hover {
-            background: #5568d3;
-            transform: translateY(-2px);
-            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
-        }
-        .btn-microsoft {
-            background: white;
-            color: #333;
-            border: 2px solid #e0e0e0;
-            margin-top: 15px;
-            text-decoration: none;
-            display: inline-flex;
-            align-items: center;
-            justify-content: center;
-        }
-        .btn-microsoft:hover {
-            background: #f8f9fa;
-            border-color: #667eea;
-            transform: translateY(-2px);
-            text-decoration: none;
-        }
-        .divider {
-            margin: 25px 0;
-            text-align: center;
-            position: relative;
-        }
-        .divider::before {
-            content: '';
-            position: absolute;
-            top: 50%;
-            left: 0;
-            right: 0;
-            height: 1px;
-            background: #e0e0e0;
-        }
-        .divider span {
-            background: white;
-            padding: 0 15px;
-            color: #999;
-            font-size: 13px;
-            position: relative;
-            z-index: 1;
-        }
-        .alert {
-            padding: 12px;
-            border-radius: 8px;
-            margin-bottom: 20px;
-            font-size: 14px;
-        }
-        .alert-error {
-            background: #fee;
-            border: 1px solid #fcc;
-            color: #c33;
-        }
-        .alert-success {
-            background: #efe;
-            border: 1px solid #cfc;
-            color: #3c3;
-        }
-        .back-link {
-            display: block;
-            margin-top: 20px;
-            color: #667eea;
-            text-decoration: none;
-            font-size: 14px;
-        }
-        .back-link:hover {
-            text-decoration: underline;
-        }
         .debug-info {
-            background: #f8f9fa;
+            margin-top: 22px; padding: 14px;
-            border: 1px solid #e0e0e0;
+            background: var(--bg-subtle); border: 1px solid var(--border-color); border-radius: var(--r-md);
-            padding: 15px;
+            font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); text-align: left;
-            margin-top: 20px;
-            border-radius: 8px;
-            text-align: left;
-            font-size: 12px;
-            color: #666;
         }
     </style>
 </head>
-<body>
+<body class="app-body focus-page">
-    <div class="login-container">
+    <div class="focus-card card login-container">
         <?php if ($logoUrl): ?>
             <img src="<?= htmlspecialchars($logoUrl) ?>" alt="Logo" class="logo">
         <?php else: ?>
@@ -303,18 +163,18 @@ try {
                 <input type="password" id="password" name="password" required>
             </div>
             
-            <button type="submit" class="btn">Anmelden</button>
+            <button type="submit" class="btn btn-primary btn-lg btn-block">Anmelden</button>
         </form>
         
         <?php if ($m365Enabled): ?>
             <div class="divider"><span>oder</span></div>
             <a href="<?= htmlspecialchars($m365LoginUrl) ?>" class="btn btn-microsoft">
-                🔷 Mit Microsoft 365 anmelden
+                <i class="fab fa-microsoft"></i> Mit Microsoft 365 anmelden
             </a>
         <?php endif; ?>
         
         <?php if ($publicAccess): ?>
-            <a href="index.php" class="back-link">← Zurück zur Code-Erstellung</a>
+            <div class="auth-links"><a href="index.php" class="back-link"><i class="fas fa-arrow-left"></i> Zurück zur Code-Erstellung</a></div>
         <?php endif; ?>
         
         <!-- Debug Info (kann nach erfolgreicher Einrichtung entfernt werden) -->

m365_debug.php

@@ -32,52 +32,21 @@ $redirectUri = $protocol . '://' . $host . $scriptPath . '/m365_callback.php';
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>M365 Debug</title>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="assets/global.css">
     <style>
-        body {
+        body { padding: 32px 20px; }
-            font-family: monospace;
+        .section { max-width: 820px; margin: 0 auto 18px; padding: 20px; background: var(--bg-card);
-            padding: 20px;
+                   border: 1px solid var(--border-color); border-radius: var(--r-lg); box-shadow: var(--shadow-sm); }
-            background: #f5f5f5;
+        .section h2 { font-size: 15px; margin-bottom: 12px; }
-        }
+        .ok    { color: var(--success); font-weight: 600; }
-        .section {
+        .error { color: var(--danger); font-weight: 600; }
-            background: white;
+        .info  { color: var(--text-muted); }
-            padding: 20px;
+        .url   { padding: 10px 12px; background: var(--bg-subtle); border: 1px solid var(--border-color);
-            margin-bottom: 20px;
+                 border-radius: var(--r-sm); font-family: var(--font-mono); font-size: 12.5px; word-break: break-all; }
-            border-radius: 8px;
-            border: 1px solid #ddd;
-        }
-        h2 {
-            margin-top: 0;
-            color: #333;
-        }
-        .ok {
-            color: green;
-            font-weight: bold;
-        }
-        .error {
-            color: red;
-            font-weight: bold;
-        }
-        .info {
-            color: #666;
-            font-size: 12px;
-            margin-top: 5px;
-        }
-        code {
-            background: #f0f0f0;
-            padding: 2px 6px;
-            border-radius: 3px;
-        }
-        .copyable {
-            background: #f9f9f9;
-            border: 1px solid #ddd;
-            padding: 10px;
-            border-radius: 4px;
-            margin: 10px 0;
-            word-break: break-all;
-        }
     </style>
 </head>
-<body>
+<body class="app-body">
     <h1>🔍 Microsoft 365 OAuth Debug</h1>
     
     <div class="section">

reset_password.php

@@ -69,38 +69,25 @@ if ($valid && $_SERVER['REQUEST_METHOD'] === 'POST') {
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= __('reset_new_pw') ?> – <?= htmlspecialchars($appTitle) ?></title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <link rel="stylesheet" href="assets/global.css">
     <script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        .pw-strength { height: 4px; border-radius: var(--r-pill); margin-top: 8px; background: var(--border-color); transition: width .3s, background-color .3s; }
-        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
-        .box { background: var(--bg-card); border-radius: 20px; box-shadow: 0 20px 60px var(--shadow-lg); max-width: 420px; width: 100%; padding: 45px 40px; text-align: center; }
-        .logo { max-width: 180px; height: auto; margin-bottom: 25px; }
-        h1 { color: var(--text-primary); font-size: 24px; margin-bottom: 8px; }
-        .subtitle { color: var(--text-muted); font-size: 14px; margin-bottom: 28px; }
-        .form-group { margin-bottom: 18px; text-align: left; }
-        label { display: block; margin-bottom: 7px; color: var(--text-secondary); font-weight: 500; font-size: 14px; }
-        input[type="password"] { width: 100%; padding: 13px; border: 2px solid var(--border-color); border-radius: 10px; font-size: 15px; background: var(--bg-input); color: var(--text-primary); transition: border-color 0.2s; }
-        input:focus { outline: none; border-color: var(--accent); }
-        .btn { width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; transition: all 0.2s; margin-top: 8px; }
-        .btn:hover { background: var(--accent-hover); transform: translateY(-2px); }
-        .alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; text-align: left; }
-        .alert-error   { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-success { background: #efe; border: 1px solid #cfc; color: #3c3; }
-        .back-link { display: block; margin-top: 22px; color: var(--accent); text-decoration: none; font-size: 14px; }
-        .back-link:hover { text-decoration: underline; }
-        .pw-strength { height: 4px; border-radius: 2px; margin-top: 6px; transition: all 0.3s; background: var(--border-color); }
         .pw-strength.weak   { background: var(--danger);  width: 30%; }
         .pw-strength.medium { background: var(--warning); width: 65%; }
         .pw-strength.strong { background: var(--success); width: 100%; }
     </style>
 </head>
-<body>
+<body class="app-body focus-page">
-<div class="box">
+<div class="focus-card card">
     <?php if ($logoUrl): ?>
         <img src="<?= htmlspecialchars($logoUrl) ?>" alt="Logo" class="logo">
     <?php else: ?>
-        <div style="font-size:28px;font-weight:700;color:var(--text-primary);margin-bottom:10px;"><?= htmlspecialchars($appTitle) ?></div>
+        <div class="focus-icon" style="margin-bottom:14px;"><i class="fas fa-key"></i></div>
     <?php endif; ?>
 
     <h1><?= __('reset_new_pw') ?></h1>
@@ -124,10 +111,10 @@ if ($valid && $_SERVER['REQUEST_METHOD'] === 'POST') {
             <label><?= __('reset_confirm_label') ?></label>
             <input type="password" name="confirm_password" required>
         </div>
-        <button type="submit" class="btn"><?= __('reset_set_btn') ?></button>
+        <button type="submit" class="btn btn-primary btn-lg btn-block"><?= __('reset_set_btn') ?></button>
     </form>
     <?php elseif ($success): ?>
-        <a href="login.php" class="btn" style="display:block;text-decoration:none;text-align:center;"><?= __('btn_login') ?></a>
+        <a href="login.php" class="btn btn-primary btn-lg btn-block"><?= __('btn_login') ?></a>
     <?php endif; ?>
 
     <a href="login.php" class="back-link"><?= __('reset_back_login') ?></a>

test.php

@@ -13,7 +13,15 @@ if (file_exists(__DIR__ . '/config.php')) {
     $auth->requireAdmin();
 }
 
-echo "<h1>System Test</h1>";
+echo '<!DOCTYPE html><html lang="de"><head><meta charset="UTF-8">'
+   . '<meta name="viewport" content="width=device-width, initial-scale=1.0">'
+   . '<title>System-Test</title>'
+   . '<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">'
+   . '<link rel="stylesheet" href="assets/global.css">'
+   . '<style>.focus-card h2{font-size:14px;margin:22px 0 8px;} .focus-card h2:first-of-type{margin-top:0;}'
+   . 'pre{white-space:pre-wrap;}</style>'
+   . '</head><body class="app-body focus-page">'
+   . '<div class="focus-card card wide"><h1 style="font-size:20px;margin-bottom:18px;">System-Test</h1>';
 
 // 1. PHP Version
 echo "<h2>1. PHP Version</h2>";
@@ -270,6 +278,8 @@ try {
 }
 
 echo "<hr>";
-echo "<h2>✓ Test abgeschlossen</h2>";
+echo "<h2>Test abgeschlossen</h2>";
-echo "<p><a href='login.php'>Zum Login</a> | <a href='index.php'>Zur Startseite</a></p>";
+echo "<p><a class='btn btn-secondary' href='login.php'>Zum Login</a> "
+   . "<a class='btn btn-primary' href='index.php'>Zur Startseite</a></p>";
+echo "</div></body></html>";
 ?>

updater/templates/maintenance.html

@@ -5,37 +5,87 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta http-equiv="refresh" content="15">
     <title>Wartungsmodus</title>
+    <!-- Bewusst vollstaendig eigenstaendig: waehrend des Updates koennen
+         assets/ und externe Ressourcen kurzzeitig nicht verfuegbar sein. -->
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        *, *::before, *::after { box-sizing: border-box; }
         body {
-            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            margin: 0;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
             min-height: 100vh;
             display: flex;
             align-items: center;
             justify-content: center;
-            padding: 20px;
+            padding: 24px;
+            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
+            color: #101625;
+            background:
+                radial-gradient(760px 420px at 12% -8%, #eeeefc, transparent 62%),
+                radial-gradient(620px 420px at 100% 6%, rgba(139,92,246,.12), transparent 64%),
+                #f6f7f9;
+            -webkit-font-smoothing: antialiased;
         }
         .card {
-            background: white;
-            border-radius: 20px;
-            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
-            max-width: 460px;
             width: 100%;
-            padding: 48px 40px;
+            max-width: 440px;
+            padding: 40px 34px;
             text-align: center;
+            background: #fff;
+            border: 1px solid #e5e8ee;
+            border-radius: 20px;
+            box-shadow: 0 28px 60px -24px rgba(16,24,40,.28), 0 8px 24px -12px rgba(16,24,40,.12);
+        }
+        .icon {
+            width: 52px; height: 52px;
+            margin: 0 auto 22px;
+            display: flex; align-items: center; justify-content: center;
+            border-radius: 14px;
+            background: linear-gradient(135deg, #5b5bd6 0%, #8b5cf6 100%);
+            box-shadow: 0 10px 24px -10px rgba(91,91,214,.9);
+        }
+        .icon svg { width: 24px; height: 24px; fill: none; stroke: #fff; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
+        h1 { margin: 0 0 10px; font-size: 21px; font-weight: 650; letter-spacing: -0.02em; }
+        p { margin: 0; color: #525c6e; font-size: 14px; line-height: 1.6; }
+        .bar {
+            position: relative;
+            height: 4px;
+            margin: 26px 0 16px;
+            border-radius: 999px;
+            background: #eef0f4;
+            overflow: hidden;
+        }
+        .bar::after {
+            content: '';
+            position: absolute; top: 0; left: 0;
+            width: 38%; height: 100%;
+            border-radius: 999px;
+            background: linear-gradient(90deg, #5b5bd6, #8b5cf6);
+            animation: slide 1.6s ease-in-out infinite;
+        }
+        @keyframes slide {
+            0%   { transform: translateX(-100%); }
+            100% { transform: translateX(300%); }
+        }
+        .hint { font-size: 12.5px; color: #8a93a3; }
+        @media (prefers-color-scheme: dark) {
+            body { color: #e9ecf3; background: radial-gradient(760px 420px at 12% -8%, #1a1c30, transparent 62%), #0a0c11; }
+            .card { background: #12151d; border-color: #232838; }
+            p { color: #a2abbd; }
+            .bar { background: #1a1f2b; }
+            .hint { color: #6f7889; }
         }
-        .icon { font-size: 56px; margin-bottom: 20px; }
-        h1 { color: #333; font-size: 24px; margin-bottom: 12px; }
-        p { color: #666; line-height: 1.6; font-size: 15px; }
-        .hint { margin-top: 24px; font-size: 13px; color: #999; }
     </style>
 </head>
 <body>
     <div class="card">
-        <div class="icon">🛠️</div>
+        <div class="icon">
+            <svg viewBox="0 0 24 24" aria-hidden="true">
+                <path d="M14.7 6.3a4 4 0 0 1 5.3 5.3l-8 8a2.8 2.8 0 0 1-4-4l8-8"/>
+                <path d="M4 20l2-6"/>
+            </svg>
+        </div>
         <h1>Kurz mal Wartung</h1>
         <p>Es wird gerade ein Update eingespielt. Die Seite ist in wenigen Augenblicken wieder erreichbar.</p>
+        <div class="bar"></div>
         <p class="hint">Diese Seite aktualisiert sich automatisch.</p>
     </div>
 </body>

updater/templates/update.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Admin-UI fuer den Updater. Standalone-Template mit Inline-CSS/JS
+ * Admin-UI fuer den Updater. Nutzt das gemeinsame Design-System
- * (das Projekt hat kein gemeinsames Admin-Layout-/Template-System).
+ * (assets/global.css); nur Updater-spezifische Regeln stehen inline.
  *
  * Verfuegbare Variablen: $manager, $auth, $currentSha, $channel, $csrfToken
  *
@@ -20,75 +20,58 @@ $channels = \Updater\UpdateManager::CHANNELS;
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>System-Update</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <link rel="stylesheet" href="../assets/global.css">
+    <script>(function(){ const t=localStorage.getItem('theme')||'light'; document.documentElement.setAttribute('data-theme',t); })();</script>
     <style>
-        * { margin: 0; padding: 0; box-sizing: border-box; }
+        /* Updater-spezifisch – der Rest kommt aus dem gemeinsamen Design-System. */
-        body {
+        .wrap { max-width: 780px; margin: 0 auto; padding: 36px 0 60px; }
-            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+        .update-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+        .update-head .title { display: flex; align-items: center; gap: 13px; }
-            min-height: 100vh;
+        .kv-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--border-color); }
-            padding: 30px 20px;
+        .kv-row:last-of-type { border-bottom: none; }
-        }
+        .kv-row .k { color: var(--text-secondary); font-size: 13.5px; }
-        .wrap { max-width: 760px; margin: 0 auto; }
+        .kv-row .v { color: var(--text-primary); font-size: 13.5px; font-weight: 600; font-family: var(--font-mono); }
-        .topbar {
+        .kv-row .v select { font-family: var(--font-sans); font-weight: 500; width: auto; min-width: 150px; }
-            display: flex; justify-content: space-between; align-items: center;
+        .progress-wrap { display: none; margin-top: 18px; }
-            margin-bottom: 24px;
+        .progress-bar { height: 8px; border-radius: var(--r-pill); background: var(--bg-hover); overflow: hidden; }
-        }
+        .progress-fill { height: 100%; width: 0; border-radius: var(--r-pill); background: var(--accent); transition: width .3s; }
-        .topbar h1 { color: #fff; font-size: 22px; }
+        .progress-msg { margin-top: 8px; font-size: 12.5px; color: var(--text-muted); }
-        .topbar a {
+        .alert { display: none; margin: 16px 0 0; }
-            background: rgba(255,255,255,.18); color: #fff; text-decoration: none;
+        .alert.show { display: flex; }
-            padding: 9px 16px; border-radius: 8px; font-size: 14px;
-        }
-        .card {
-            background: #fff; border-radius: 16px; padding: 28px;
-            box-shadow: 0 14px 40px rgba(0,0,0,.2); margin-bottom: 22px;
-        }
-        .card h2 { font-size: 16px; color: #333; margin-bottom: 16px; }
-        .row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #f0f0f0; }
-        .row:last-child { border-bottom: none; }
-        .row .k { color: #777; font-size: 14px; }
-        .row .v { color: #222; font-size: 14px; font-weight: 600; font-family: monospace; }
-        .btn {
-            background: #667eea; color: #fff; border: none; border-radius: 9px;
-            padding: 12px 20px; font-size: 15px; font-weight: 600; cursor: pointer;
-            transition: background .2s;
-        }
-        .btn:hover { background: #5568d3; }
-        .btn:disabled { background: #bbb; cursor: not-allowed; }
-        .btn-green { background: #2e9e5b; }
-        .btn-green:hover { background: #257d49; }
-        select {
-            padding: 10px; border: 2px solid #e0e0e0; border-radius: 8px; font-size: 14px;
-        }
-        .muted { color: #888; font-size: 13px; margin-top: 8px; }
-        .progress-wrap { display: none; margin-top: 16px; }
-        .progress-bar { height: 14px; background: #eee; border-radius: 8px; overflow: hidden; }
-        .progress-fill { height: 100%; width: 0; background: #667eea; transition: width .3s; }
-        .progress-msg { font-size: 13px; color: #555; margin-top: 8px; }
-        .alert { padding: 12px 14px; border-radius: 9px; font-size: 14px; margin-top: 14px; display: none; }
-        .alert.show { display: block; }
-        .alert-error { background: #fee; border: 1px solid #fcc; color: #c33; }
-        .alert-ok { background: #efe; border: 1px solid #cfc; color: #2a7; }
         .changelog {
-            background: #f8f9fb; border-radius: 9px; padding: 14px; margin-top: 14px;
-            font-size: 13px; color: #444; white-space: pre-wrap; max-height: 260px; overflow: auto;
             display: none;
+            margin-top: 16px; padding: 14px;
+            max-height: 260px; overflow: auto;
+            background: var(--bg-subtle); border: 1px solid var(--border-color); border-radius: var(--r-md);
+            font-size: 13px; color: var(--text-secondary); white-space: pre-wrap;
         }
-        .mig-item { display: flex; justify-content: space-between; padding: 6px 0; font-size: 13px; }
+        .mig-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--border-color); font-size: 13.5px; }
-        .badge { padding: 2px 8px; border-radius: 6px; font-size: 12px; font-weight: 600; }
+        .mig-item:last-child { border-bottom: none; }
-        .badge-on { background: #e3f6ea; color: #2a7; }
+        .mig-item span:first-child { font-family: var(--font-mono); font-size: 12.5px; }
-        .badge-off { background: #fdeaea; color: #c33; }
+        .badge-on  { background: var(--success-soft); color: var(--success); border: 1px solid var(--success-border); }
-        .tabs { display: flex; gap: 8px; margin-bottom: 16px; }
+        .badge-off { background: var(--warning-soft); color: var(--warning); border: 1px solid var(--warning-border); }
-        .tab { padding: 8px 14px; border-radius: 8px; background: #f0f0f0; cursor: pointer; font-size: 14px; }
+        .tabs { display: inline-flex; gap: 3px; padding: 3px; margin-bottom: 18px; background: var(--bg-hover); border: 1px solid var(--border-color); border-radius: var(--r-md); }
-        .tab.active { background: #667eea; color: #fff; }
+        .tab { padding: 7px 16px; border-radius: var(--r-sm); font-size: 13px; font-weight: 550; color: var(--text-secondary); cursor: pointer; }
+        .tab.active { background: var(--bg-card); color: var(--text-primary); box-shadow: var(--shadow-xs); font-weight: 600; }
         .pane { display: none; }
         .pane.active { display: block; }
     </style>
 </head>
-<body>
+<body class="app-body">
 <div class="wrap">
-    <div class="topbar">
+    <div class="update-head">
-        <h1>🔄 System-Update</h1>
+        <div class="title">
-        <a href="/admin/">← Administration</a>
+            <span class="focus-icon"><i class="fas fa-rotate"></i></span>
+            <div>
+                <h1 style="font-size:20px;">System-Update</h1>
+                <p class="sub">Aktualisierung aus dem gewählten Release-Channel</p>
+            </div>
+        </div>
+        <a href="/admin/" class="btn btn-secondary"><i class="fas fa-arrow-left"></i> Administration</a>
     </div>
 
     <div class="tabs">
@@ -99,8 +82,8 @@ $channels = \Updater\UpdateManager::CHANNELS;
     <div class="pane active" id="pane-update">
         <div class="card">
             <h2>Aktuelle Version</h2>
-            <div class="row"><span class="k">Installierte Version (SHA)</span><span class="v" id="curSha"><?= htmlspecialchars($shortSha) ?></span></div>
+            <div class="kv-row"><span class="k">Installierte Version (SHA)</span><span class="v" id="curSha"><?= htmlspecialchars($shortSha) ?></span></div>
-            <div class="row"><span class="k">Update-Channel</span>
+            <div class="kv-row"><span class="k">Update-Channel</span>
                 <span class="v">
                     <select id="channel">
                         <?php foreach ($channels as $key => $url): ?>
@@ -114,8 +97,8 @@ $channels = \Updater\UpdateManager::CHANNELS;
 
         <div class="card">
             <h2>Updates</h2>
-            <button class="btn" id="btnCheck">Auf Updates prüfen</button>
+            <button class="btn btn-primary" id="btnCheck"><i class="fas fa-magnifying-glass"></i> Auf Updates prüfen</button>
-            <button class="btn btn-green" id="btnInstall" style="display:none;">Update installieren</button>
+            <button class="btn btn-success" id="btnInstall" style="display:none;margin-left:8px;"><i class="fas fa-download"></i> Update installieren</button>
 
             <div class="changelog" id="changelog"></div>
 
@@ -133,7 +116,7 @@ $channels = \Updater\UpdateManager::CHANNELS;
         <div class="card">
             <h2>Migrations-Status</h2>
             <div id="migList"><p class="muted">Wird geladen …</p></div>
-            <button class="btn" id="btnRunMig" style="margin-top:16px; display:none;">Ausstehende Migrationen ausführen</button>
+            <button class="btn btn-primary" id="btnRunMig" style="margin-top:16px; display:none;">Ausstehende Migrationen ausführen</button>
             <div class="alert alert-ok" id="migAlert"></div>
         </div>
     </div>
@@ -171,7 +154,7 @@ $('channel').addEventListener('change', async (e) => {
 // Auf Updates pruefen
 $('btnCheck').addEventListener('click', async () => {
     clearAlerts();
-    $('btnCheck').disabled = true; $('btnCheck').textContent = 'Prüfe …';
+    $('btnCheck').disabled = true; $('btnCheck').innerHTML = '<i class="fas fa-circle-notch fa-spin"></i> Prüfe …';
     try {
         const r = await fetch('update.php?action=check');
         const d = await r.json();
@@ -193,7 +176,7 @@ $('btnCheck').addEventListener('click', async () => {
     } catch (e) {
         showAlert('error', 'Prüfung fehlgeschlagen: ' + e.message);
     } finally {
-        $('btnCheck').disabled = false; $('btnCheck').textContent = 'Auf Updates prüfen';
+        $('btnCheck').disabled = false; $('btnCheck').innerHTML = '<i class="fas fa-magnifying-glass"></i> Auf Updates prüfen';
     }
 });