diff --git a/users.php b/users.php
index b5af325..c680e83 100755
--- a/users.php
+++ b/users.php
@@ -60,7 +60,7 @@ if ($is_admin && isset($_GET['action']) && $_GET['action'] == 'delete' && isset(
 // --- Nur Admins: Bearbeiten ---
 if ($is_admin && isset($_GET['action']) && $_GET['action'] == 'edit' && isset($_GET['id'])) {
     $id = (int)$_GET['id'];
-    $stmt = mysqli_prepare($conn, "SELECT id, username, email, role, birthday FROM users WHERE id = ?");
+    $stmt = mysqli_prepare($conn, "SELECT id, username, email, role, birthday, last_activity FROM users WHERE id = ?");
     mysqli_stmt_bind_param($stmt, "i", $id);
     mysqli_stmt_execute($stmt);
     $result = mysqli_stmt_get_result($stmt);
@@ -88,9 +88,6 @@ if ($is_admin && $_SERVER["REQUEST_METHOD"] == "POST") {
     $email = !empty($email_raw) ? $email_raw : null;
     $birthday_db = deDateToDb($birthday_de);
 
-    // --- DEBUG: Zeige, was konvertiert wurde (kannst du später löschen) ---
-    // error_log("DEBUG: birthday_de='$birthday_de' → birthday_db='$birthday_db'");
-
     if (empty($username)) {
         $message = "Benutzername ist erforderlich.";
         $message_type = 'danger';
@@ -186,9 +183,9 @@ if ($is_admin && $_SERVER["REQUEST_METHOD"] == "POST") {
     }
 }
 
-// --- Mitgliederliste ---
+// --- Mitgliederliste --- 🔹 last_activity hinzugefügt
 $users = [];
-$result = mysqli_query($conn, "SELECT id, username, role, email, birthday FROM users ORDER BY id ASC");
+$result = mysqli_query($conn, "SELECT id, username, role, email, birthday, last_activity FROM users ORDER BY id ASC");
 while ($row = mysqli_fetch_assoc($result)) {
     $users[] = $row;
 }
@@ -280,6 +277,7 @@ require_once 'inc/header.php';
                             <th class="text-center" style="width: 56px;">Daten</th>
                             <th>Rolle</th>
                             <?php if ($is_admin): ?>
+                                <th class="text-center" style="width: 1px;"></th>
                                 <th class="text-end"></th>
                             <?php endif; ?>
                         </tr>
@@ -309,6 +307,22 @@ require_once 'inc/header.php';
                                     </span>
                                 </td>
                                 <?php if ($is_admin): ?>
+                                    <!-- 🔹 Neue Status-Spalte -->
+                                    <td class="text-center align-middle">
+                                        <?php
+                                        $is_online = !empty($user['last_activity']) && strtotime($user['last_activity']) >= strtotime('-10 minutes');
+                                        $tooltip = $is_online
+                                            ? 'Online'
+                                            : (!empty($user['last_activity'])
+                                                ? 'Zuletzt online: ' . date('d.m.Y H:i', strtotime($user['last_activity']))
+                                                : 'Noch nie gesehen');
+                                        $color = $is_online ? 'success' : 'secondary';
+                                        ?>
+                                        <span
+                                            class="badge rounded-pill bg-<?= $color ?> d-inline-block"
+                                            title="<?= htmlspecialchars($tooltip) ?>"
+                                            style="width: 12px; height: 12px; padding: 0; border: 1px solid #555;"></span>
+                                    </td>
                                     <td class="text-end align-middle">
                                         <div class="dropdown">
                                             <a href="#" class="text-secondary" role="button" data-bs-toggle="dropdown" aria-expanded="false">