diff --git a/Web/templates/mahnungen_admin.html b/Web/templates/mahnungen_admin.html
index cf4b224..151543d 100644
--- a/Web/templates/mahnungen_admin.html
+++ b/Web/templates/mahnungen_admin.html
@@ -1,256 +1,225 @@
 {% extends "base.html" %}
 
-{% block title %}Mahnungen & Überfällige Ausleihen{% endblock %}
+{% block title %}Mahnungsübersicht - {{ APP_VERSION }}{% endblock %}
 
 {% block content %}
-<html lang="de">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+<style>
+  .mahnungen-shell {
+    max-width: 1180px;
+    margin: 0 auto;
+    padding: 20px;
+  }
 
-    <!-- ==========================================
-         CSS STYLES
-         ========================================== -->
-    <style>
-        :root {
-            --bg-color: #f4f7f6;
-            --text-color: #333;
-            --primary: #4a90e2;
-            --danger: #dc3545;
-            --warning: #ffc107;
-            --info: #0dcaf0;
-            --success: #198754;
-            --border-color: #dee2e6;
-        }
+  .mahnungen-head {
+    background: linear-gradient(135deg, #ffffff 0%, #f7f9fc 100%);
+    border: 1px solid #dbe4ee;
+    border-radius: 16px;
+    padding: 18px 20px;
+    margin-bottom: 20px;
+    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.07);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 16px;
+  }
 
-        body {
-            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
-            background-color: var(--bg-color);
-            color: var(--text-color);
-            margin: 0;
-            padding: 20px;
-        }
+  .mahnungen-head h1 {
+    margin: 0;
+    font-size: 1.55rem;
+    color: #1e293b;
+  }
 
-        .container {
-            width: 100%;
-            max-width: 1200px;
-            margin: 0 auto;
-        }
+  .head-actions {
+    display: flex;
+    gap: 10px;
+    flex-wrap: wrap;
+  }
 
-        .header-bar {
-            display: flex;
-            justify-content: space-between;
-            align-items: center;
-            margin-bottom: 20px;
-        }
+  .search-box-wrapper {
+    margin-bottom: 16px;
+  }
 
-        .header-bar h2 {
-            margin: 0;
-            color: #2c3e50;
-        }
+  .search-box {
+    width: 100%;
+    max-width: 360px;
+    padding: 10px 14px;
+    border: 1px solid #cbd5e1;
+    border-radius: 8px;
+    font-size: 0.95rem;
+    outline: none;
+    transition: border-color 0.2s, box-shadow 0.2s;
+  }
 
-        /* Suchfeld Styling */
-        .search-box {
-            padding: 10px;
-            width: 100%;
-            max-width: 300px;
-            border: 1px solid var(--border-color);
-            border-radius: 4px;
-            font-size: 1rem;
-            margin-bottom: 20px;
-        }
+  .search-box:focus {
+    border-color: #3b82f6;
+    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
+  }
 
-        /* Card & Table Styling */
-        .card {
-            background-color: #fff;
-            border-radius: 8px;
-            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
-            padding: 20px;
-            overflow-x: auto;
-        }
+  .mahnungen-card {
+    background: var(--ui-surface, #ffffff);
+    border: 1px solid #e2e8f0;
+    border-radius: 16px;
+    padding: 18px;
+    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
+  }
 
-        .table {
-            width: 100%;
-            border-collapse: collapse;
-            text-align: left;
-        }
+  .mahnungen-table {
+    width: 100%;
+    border-collapse: collapse;
+  }
 
-        .table th, .table td {
-            padding: 12px 15px;
-            border-bottom: 1px solid var(--border-color);
-        }
+  .mahnungen-table th,
+  .mahnungen-table td {
+    padding: 12px 10px;
+    border-bottom: 1px solid #edf2f7;
+    vertical-align: middle;
+    text-align: left;
+  }
 
-        .table th {
-            background-color: #f8f9fa;
-            font-weight: 600;
-            color: #495057;
-        }
+  .mahnungen-table th {
+    font-size: 0.83rem;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: #64748b;
+    background: var(--ui-surface-soft, #f8fafc);
+  }
 
-        .table tbody tr:hover {
-            background-color: #f8f9fa;
-        }
+  .mahnungen-table tr:hover td {
+    background: #fbfdff;
+  }
 
-        /* Badges */
-        .badge {
-            display: inline-block;
-            padding: 5px 10px;
-            font-size: 0.85em;
-            font-weight: bold;
-            border-radius: 20px;
-            color: #fff;
-            text-align: center;
-        }
+  .badge-pill {
+    display: inline-flex;
+    align-items: center;
+    padding: 4px 10px;
+    border-radius: 999px;
+    font-size: 0.78rem;
+    font-weight: 700;
+    line-height: 1;
+  }
 
-        .bg-danger { background-color: var(--danger); }
-        .bg-warning { background-color: var(--warning); color: #000; }
-        .bg-info { background-color: var(--info); color: #000; }
-        .bg-success { background-color: var(--success); }
+  .badge-open { background: #fee2e2; color: #991b1b; }
+  .badge-warning { background: #fef3c7; color: #b45309; }
+  .badge-info { background: #e0f2fe; color: #0369a1; }
+  .badge-paid { background: #dcfce7; color: #166534; }
 
-        .text-danger {
-            color: var(--danger);
-            font-weight: bold;
-        }
+  .mono {
+    font-family: monospace;
+    font-size: 0.92rem;
+  }
 
-        /* Buttons */
-        .btn {
-            padding: 10px 15px;
-            border-radius: 4px;
-            text-decoration: none;
-            font-weight: bold;
-            color: #fff;
-            background-color: #6c757d;
-            border: none;
-            cursor: pointer;
-            transition: background 0.2s;
-        }
+  .text-danger {
+    color: #dc2626;
+    font-weight: 700;
+  }
 
-        .btn:hover { background-color: #5a6268; }
+  .empty-state {
+    text-align: center;
+    color: #6b7280;
+    padding: 36px 20px;
+  }
 
-        /* Alert */
-        .alert-success {
-            background-color: #d1e7dd;
-            color: #0f5132;
-            padding: 15px;
-            border-radius: 4px;
-            text-align: center;
-            border: 1px solid #badbcc;
-        }
-    </style>
-</head>
-<body>
+  @media (max-width: 900px) {
+    .mahnungen-table {
+      display: block;
+      overflow-x: auto;
+      white-space: nowrap;
+    }
+  }
+</style>
 
-    <!-- ==========================================
-         HTML CONTENT (JINJA2)
-         ========================================== -->
-    <div class="container">
-
-        <div class="header-bar">
-            <h2>🚨 Mahnungsübersicht</h2>
-            <a href="{{ url_for('library_loans_admin') }}" class="btn">Zurück zur Bibliothek</a>
-        </div>
-
-        <div class="card">
-            {% if overdue_list %}
-
-                <!-- Suchfeld für das JavaScript -->
-                <input type="text" id="searchInput" class="search-box" placeholder="Suche nach Nutzer, Klasse oder Gegenstand..." onkeyup="filterTable()">
-
-                <table class="table" id="mahnungTable">
-                    <thead>
-                        <tr>
-                            <th>Nutzer</th>
-                            <th>Klasse</th>
-                            <th>Gegenstand</th>
-                            <th>Fällig am</th>
-                            <th>Tage drüber</th>
-                            <th>Mahnstufe</th>
-                            <th>Konto-Status</th>
-                        </tr>
-                    </thead>
-                    <tbody>
-                        {% for item in overdue_list %}
-                            <tr>
-                                <td><strong>{{ item.user }}</strong></td>
-                                <td>{{ item.klasse }}</td>
-                                <td>{{ item.item_name }}</td>
-                                <td>{{ item.due_date }}</td>
-                                <td class="text-danger">{{ item.days_overdue }} Tage</td>
-
-                                <td>
-                                    {% if item.mahnstufe == 2 %}
-                                        <span class="badge bg-danger">Stufe 2 (Gesperrt)</span>
-                                    {% elif item.mahnstufe == 1 %}
-                                        <span class="badge bg-warning">Stufe 1 (Gewarnt)</span>
-                                    {% else %}
-                                        <span class="badge bg-info">Stufe 0 (Neu)</span>
-                                    {% endif %}
-                                </td>
-
-                                <td>
-                                    {% if item.is_blocked %}
-                                        <span class="badge bg-danger">Gesperrt</span>
-                                    {% else %}
-                                        <span class="badge bg-success">Aktiv</span>
-                                    {% endif %}
-                                </td>
-                            </tr>
-                        {% endfor %}
-                    </tbody>
-                </table>
-            {% else %}
-                <div class="alert-success">
-                    <strong>Hervorragend!</strong> Aktuell gibt es keine überfälligen Ausleihen im System.
-                </div>
-            {% endif %}
-        </div>
+<div class="mahnungen-shell">
+  <div class="mahnungen-head">
+    <h1>🚨 Mahnungsübersicht</h1>
+    <div class="head-actions">
+      <a class="btn btn-outline-secondary" href="{{ url_for('library_loans_admin') }}">Zur Ausleihenverwaltung</a>
+      <a class="btn btn-secondary" href="{{ url_for('library_view') }}">Bibliothek öffnen</a>
     </div>
+  </div>
 
-    <!-- ==========================================
-         JAVASCRIPT
-         ========================================== -->
-    <script>
-        /**
-         * Funktion: filterTable()
-         * Liest die Eingabe aus dem Suchfeld und filtert die Tabellenzeilen live.
-         * Durchsucht Nutzer, Klassen und Gegenstände.
-         */
-        function filterTable() {
-            // Hole den Wert aus dem Eingabefeld und wandle ihn in Kleinbuchstaben um
-            let input = document.getElementById("searchInput");
-            let filter = input.value.toLowerCase();
+  <div class="mahnungen-card">
+    {% if overdue_list %}
+      <div class="search-box-wrapper">
+        <input type="text" id="searchInput" class="search-box" placeholder="🔍 Suche nach Nutzer, Klasse oder Gegenstand..." onkeyup="filterTable()">
+      </div>
 
-            // Hole die Tabelle und alle Zeilen (tr) aus dem tbody
-            let table = document.getElementById("mahnungTable");
-            let tr = table.getElementsByTagName("tbody")[0].getElementsByTagName("tr");
+      <table class="mahnungen-table" id="mahnungTable">
+        <thead>
+          <tr>
+            <th>Nutzer</th>
+            <th>Klasse</th>
+            <th>Gegenstand</th>
+            <th>Fällig am</th>
+            <th>Tage drüber</th>
+            <th>Mahnstufe</th>
+            <th>Konto-Status</th>
+          </tr>
+        </thead>
+        <tbody>
+          {% for item in overdue_list %}
+          <tr>
+            <td><strong>{{ item.user or '—' }}</strong></td>
+            <td>{{ item.klasse or '—' }}</td>
+            <td>{{ item.item_name or '—' }}</td>
+            <td><span class="mono">{{ item.due_date or '—' }}</span></td>
+            <td class="text-danger">{{ item.days_overdue }} Tage</td>
+            <td>
+              {% if item.mahnstufe == 2 %}
+                <span class="badge-pill badge-open">Stufe 2 (Gesperrt)</span>
+              {% elif item.mahnstufe == 1 %}
+                <span class="badge-pill badge-warning">Stufe 1 (Gewarnt)</span>
+              {% else %}
+                <span class="badge-pill badge-info">Stufe 0 (Neu)</span>
+              {% endif %}
+            </td>
+            <td>
+              {% if item.is_blocked %}
+                <span class="badge-pill badge-open">Gesperrt</span>
+              {% else %}
+                <span class="badge-pill badge-paid">Aktiv</span>
+              {% endif %}
+            </td>
+          </tr>
+          {% endfor %}
+        </tbody>
+      </table>
+    {% else %}
+      <div class="empty-state">
+        <strong>Hervorragend!</strong> Aktuell gibt es keine überfälligen Ausleihen im System.
+      </div>
+    {% endif %}
+  </div>
+</div>
 
-            // Durchlaufe alle Zeilen
-            for (let i = 0; i < tr.length; i++) {
-                // Hole die Zellen für Nutzer (0), Klasse (1) und Gegenstand (2)
-                let tdUser = tr[i].getElementsByTagName("td")[0];
-                let tdClass = tr[i].getElementsByTagName("td")[1];
-                let tdItem = tr[i].getElementsByTagName("td")[2];
+<script>
+  function filterTable() {
+    const input = document.getElementById("searchInput");
+    const filter = input.value.toLowerCase();
+    const table = document.getElementById("mahnungTable");
+    const tr = table.getElementsByTagName("tbody")[0].getElementsByTagName("tr");
 
-                if (tdUser || tdClass || tdItem) {
-                    // Extrahiere den Text
-                    let textUser = tdUser.textContent || tdUser.innerText;
-                    let textClass = tdClass.textContent || tdClass.innerText;
-                    let textItem = tdItem.textContent || tdItem.innerText;
+    for (let i = 0; i < tr.length; i++) {
+      const tdUser = tr[i].getElementsByTagName("td")[0];
+      const tdClass = tr[i].getElementsByTagName("td")[1];
+      const tdItem = tr[i].getElementsByTagName("td")[2];
 
-                    // Prüfe, ob der Suchbegriff in einer der drei Spalten vorkommt
-                    if (
-                        textUser.toLowerCase().indexOf(filter) > -1 ||
-                        textClass.toLowerCase().indexOf(filter) > -1 ||
-                        textItem.toLowerCase().indexOf(filter) > -1
-                    ) {
-                        tr[i].style.display = ""; // Zeile anzeigen
-                    } else {
-                        tr[i].style.display = "none"; // Zeile ausblenden
-                    }
-                }
-            }
+      if (tdUser || tdClass || tdItem) {
+        const textUser = tdUser.textContent || tdUser.innerText;
+        const textClass = tdClass.textContent || tdClass.innerText;
+        const textItem = tdItem.textContent || tdItem.innerText;
+
+        if (
+          textUser.toLowerCase().indexOf(filter) > -1 ||
+          textClass.toLowerCase().indexOf(filter) > -1 ||
+          textItem.toLowerCase().indexOf(filter) > -1
+        ) {
+          tr[i].style.display = "";
+        } else {
+          tr[i].style.display = "none";
         }
-    </script>
-
-</body>
-</html>
+      }
+    }
+  }
+</script>
 {% endblock %}
\ No newline at end of file
