diff --git a/config/config.php b/config/config.php
index 5813d05..6561c88 100755
--- a/config/config.php
+++ b/config/config.php
@@ -9,6 +9,7 @@ return [
         'debug' => filter_var($_ENV['APP_DEBUG'] ?? false, FILTER_VALIDATE_BOOLEAN),
         'url' => $_ENV['APP_URL'] ?? 'http://localhost',
         'timezone' => $_ENV['APP_TIMEZONE'] ?? 'America/Santo_Domingo',
+        'asset_version' => $_ENV['ASSET_VERSION'] ?? '0.0.0',
     ],
 
     'database' => [
diff --git a/public/assets/css/style.css b/public/assets/css/style.css
index 6c04cc0..789c036 100755
--- a/public/assets/css/style.css
+++ b/public/assets/css/style.css
@@ -121,7 +121,7 @@ code, pre {
 }
 
 /* App Container */
-.app-container {
+.app-layout {
     display: flex;
     min-height: 100vh;
 }
@@ -159,7 +159,7 @@ code, pre {
     min-height: var(--topbar-height);
 }
 
-.sidebar-logo {
+.sidebar-brand {
     display: flex;
     align-items: center;
     gap: 0.75rem;
@@ -169,32 +169,13 @@ code, pre {
     white-space: nowrap;
 }
 
-.sidebar-logo i {
+.sidebar-brand i {
     font-size: 1.5rem;
     color: var(--accent);
 }
 
-.sidebar-toggle {
-    background: none;
-    border: none;
-    color: var(--text-secondary);
-    cursor: pointer;
-    font-size: 1.1rem;
-    padding: 0.5rem;
-    border-radius: var(--radius-sm);
-    transition: color var(--transition);
-    flex-shrink: 0;
-}
-
-.sidebar-toggle:hover {
-    color: var(--text-primary);
-}
-
-.sidebar-toggle i,
-.mobile-toggle i,
-.nav-link i,
-.nav-sub-item i,
-.user-menu a i {
+.nav-item i,
+.nav-sub-item i {
     pointer-events: none;
 }
 
@@ -204,61 +185,6 @@ code, pre {
     padding: 0.75rem 0;
 }
 
-.nav-list {
-    list-style: none;
-}
-
-.nav-item {
-    margin: 2px 0;
-}
-
-.nav-link {
-    display: flex;
-    align-items: center;
-    gap: 0.75rem;
-    padding: 0.65rem 1.25rem;
-    color: var(--text-secondary);
-    border-radius: 0;
-    transition: all var(--transition);
-    font-size: 0.92rem;
-    white-space: nowrap;
-    border-left: 3px solid transparent;
-}
-
-.nav-link i {
-    width: 20px;
-    text-align: center;
-    flex-shrink: 0;
-}
-
-.nav-link:hover {
-    color: var(--text-primary);
-    background: var(--bg-hover);
-}
-
-.nav-link.active {
-    color: var(--accent);
-    background: var(--accent-light);
-    border-left-color: var(--accent);
-    font-weight: 500;
-}
-
-.nav-divider {
-    height: 1px;
-    background: var(--border-color);
-    margin: 0.5rem 1rem;
-}
-
-.nav-section {
-    padding: 0.5rem 1.25rem;
-    font-size: 0.75rem;
-    text-transform: uppercase;
-    letter-spacing: 0.08em;
-    color: var(--text-muted);
-    font-weight: 600;
-    white-space: nowrap;
-}
-
 .sidebar-footer {
     border-top: 1px solid var(--border-color);
     padding: 0.75rem 1rem;
@@ -321,21 +247,72 @@ code, pre {
     color: var(--text-primary);
 }
 
+.nav-item {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    padding: 0.65rem 1.25rem;
+    color: var(--text-secondary);
+    border-radius: 0;
+    transition: all var(--transition);
+    font-size: 0.92rem;
+    white-space: nowrap;
+    border-left: 3px solid transparent;
+}
+
+.nav-item i {
+    width: 20px;
+    text-align: center;
+    flex-shrink: 0;
+}
+
+.nav-item:hover {
+    color: var(--text-primary);
+    background: var(--bg-hover);
+}
+
+.nav-item.active {
+    color: var(--accent);
+    background: var(--accent-light);
+    border-left-color: var(--accent);
+    font-weight: 500;
+}
+
+.nav-divider {
+    height: 1px;
+    background: var(--border-color);
+    margin: 0.5rem 1rem;
+}
+
+.nav-section {
+    padding: 0.5rem 1.25rem;
+    font-size: 0.75rem;
+    text-transform: uppercase;
+    letter-spacing: 0.08em;
+    color: var(--text-muted);
+    font-weight: 600;
+    white-space: nowrap;
+}
+
+
+
 /* Collapsed state */
-.sidebar.collapsed .logo-text,
-.sidebar.collapsed .nav-link span,
+.sidebar.collapsed .nav-item span,
+.sidebar.collapsed .nav-chevron,
+.sidebar.collapsed .notification-badge,
+.sidebar.collapsed .nav-divider,
 .sidebar.collapsed .nav-section,
 .sidebar.collapsed .user-details,
 .sidebar.collapsed .user-menu,
-.sidebar.collapsed .nav-divider {
+.sidebar.collapsed .sidebar-footer {
     display: none;
 }
 
-.sidebar.collapsed .sidebar-logo {
+.sidebar.collapsed .sidebar-brand {
     justify-content: center;
 }
 
-.sidebar.collapsed .nav-link {
+.sidebar.collapsed .nav-item {
     justify-content: center;
     padding: 0.65rem;
 }
@@ -348,7 +325,7 @@ code, pre {
    Main Content
    ========================================================================== */
 
-.main-content {
+.main-area {
     flex: 1;
     margin-left: var(--sidebar-width);
     transition: margin-left var(--transition);
@@ -357,7 +334,7 @@ code, pre {
     flex-direction: column;
 }
 
-.sidebar.collapsed ~ .main-content {
+.sidebar.collapsed ~ .main-area {
     margin-left: var(--sidebar-collapsed);
 }
 
@@ -365,7 +342,7 @@ code, pre {
    Top Bar
    ========================================================================== */
 
-.top-bar {
+.topbar {
     height: var(--topbar-height);
     background: var(--bg-secondary);
     border-bottom: 1px solid var(--border-color);
@@ -378,48 +355,25 @@ code, pre {
     z-index: 50;
 }
 
-.top-bar-left {
+.topbar-left {
     display: flex;
     align-items: center;
     gap: 1rem;
 }
 
-.mobile-toggle {
-    display: none;
-    background: none;
-    border: none;
-    color: var(--text-secondary);
-    font-size: 1.3rem;
-    cursor: pointer;
-    padding: 0.5rem 0.75rem;
-    border-radius: var(--radius-sm);
-    transition: color var(--transition);
-}
-
-.mobile-toggle:hover {
-    color: var(--text-primary);
-    background: var(--bg-hover);
-}
-
-.mobile-overlay {
-    display: none;
-}
-
-.breadcrumb {
-    font-size: 0.92rem;
-    color: var(--text-secondary);
-    font-weight: 500;
-}
-
-.top-bar-right {
+.topbar-right {
     display: flex;
     align-items: center;
     gap: 0.5rem;
 }
 
-.top-bar-actions {
+.topbar-user {
     display: flex;
-    gap: 0.25rem;
+    align-items: center;
+    gap: 0.5rem;
+    font-size: 0.88rem;
+    color: var(--text-secondary);
+    white-space: nowrap;
 }
 
 .btn-icon {
@@ -442,11 +396,15 @@ code, pre {
    Content Area
    ========================================================================== */
 
-.content-area {
+.page-content {
     flex: 1;
     padding: 1.5rem;
 }
 
+.container {
+    max-width: 100%;
+}
+
 /* ==========================================================================
    Page Header
    ========================================================================== */
@@ -2340,20 +2298,22 @@ textarea.form-input {
         width: 280px;
     }
 
-    .sidebar.mobile-open.collapsed .logo-text,
-    .sidebar.mobile-open.collapsed .nav-link span,
+    .sidebar.mobile-open.collapsed .nav-item span,
+    .sidebar.mobile-open.collapsed .nav-chevron,
+    .sidebar.mobile-open.collapsed .notification-badge,
+    .sidebar.mobile-open.collapsed .nav-divider,
     .sidebar.mobile-open.collapsed .nav-section,
     .sidebar.mobile-open.collapsed .user-details,
     .sidebar.mobile-open.collapsed .user-menu,
-    .sidebar.mobile-open.collapsed .nav-divider {
+    .sidebar.mobile-open.collapsed .sidebar-footer {
         display: flex;
     }
 
-    .sidebar.mobile-open.collapsed .sidebar-logo {
+    .sidebar.mobile-open.collapsed .sidebar-brand {
         justify-content: flex-start;
     }
 
-    .sidebar.mobile-open.collapsed .nav-link {
+    .sidebar.mobile-open.collapsed .nav-item {
         justify-content: flex-start;
         padding: 0.65rem 1.25rem;
     }
@@ -2362,31 +2322,15 @@ textarea.form-input {
         justify-content: flex-start;
     }
 
-    .main-content {
+    .main-area {
         margin-left: 0 !important;
     }
 
-    .mobile-toggle {
-        display: block;
-    }
-
-    .mobile-overlay {
-        display: none;
-        position: fixed;
-        inset: 0;
-        background: rgba(0,0,0,0.5);
-        z-index: 99;
-    }
-
-    .mobile-overlay.active {
-        display: block;
-    }
-
-    .content-area {
+    .page-content {
         padding: 1rem;
     }
 
-    .top-bar {
+    .topbar {
         padding: 0 1rem;
     }
 
@@ -2414,7 +2358,7 @@ textarea.form-input {
         display: none;
     }
 
-    .nav-submenu {
+    .nav-sublist {
         background: rgba(0,0,0,0.1);
     }
 }
@@ -2481,11 +2425,11 @@ textarea.form-input {
    ========================================================================== */
 
 @media print {
-    .sidebar, .top-bar {
+    .sidebar, .topbar {
         display: none;
     }
 
-    .main-content {
+    .main-area {
         margin-left: 0;
     }
 }
@@ -2780,7 +2724,7 @@ textarea.form-input {
 }
 
 /* Sidebar accordion */
-.nav-item-accordion .nav-link {
+.nav-item-accordion .nav-item-toggle {
     display: flex;
     align-items: center;
     gap: 0.5rem;
@@ -2797,20 +2741,13 @@ textarea.form-input {
     transform: rotate(90deg);
 }
 
-.nav-submenu {
+.nav-sublist {
     max-height: 0;
     overflow: hidden;
     transition: max-height 0.25s ease;
     background: rgba(0,0,0,0.15);
 }
 
-.nav-submenu-loading {
-    padding: 0.5rem 1rem;
-    font-size: 0.78rem;
-    color: var(--text-muted);
-    text-align: center;
-}
-
 .nav-sub-item {
     display: flex;
     align-items: center;
@@ -3330,7 +3267,7 @@ input[type="range"]::-moz-range-track {
     display: block;
 }
 
-.notif-dropdown-header {
+.notif-header {
     display: flex;
     align-items: center;
     justify-content: space-between;
@@ -3338,11 +3275,9 @@ input[type="range"]::-moz-range-track {
     border-bottom: 1px solid var(--border-color);
 }
 
-.notif-dropdown-body {
+.notif-list {
     max-height: 360px;
     overflow-y: auto;
 }
 
-.notif-dropdown-footer {
-    border-top: 1px solid var(--border-color);
-}
+
diff --git a/public/assets/js/app.js b/public/assets/js/app.js
index f124df8..fe7baad 100644
--- a/public/assets/js/app.js
+++ b/public/assets/js/app.js
@@ -12,14 +12,6 @@
 
     const sidebar = document.getElementById('sidebar');
     const sidebarToggle = document.getElementById('sidebarToggle');
-    const mobileToggle = document.getElementById('mobileToggle');
-    const mobileOverlay = document.getElementById('mobileOverlay');
-
-    function closeMobileSidebar() {
-        if (!sidebar) return;
-        sidebar.classList.remove('mobile-open');
-        if (mobileOverlay) mobileOverlay.classList.remove('active');
-    }
 
     if (sidebarToggle && sidebar) {
         sidebarToggle.addEventListener('click', function () {
@@ -34,35 +26,6 @@
         } catch (e) {}
     }
 
-    if (mobileToggle && sidebar) {
-        mobileToggle.addEventListener('click', function () {
-            const opening = !sidebar.classList.contains('mobile-open');
-            if (opening) {
-                sidebar.classList.remove('collapsed');
-                sidebar.classList.add('mobile-open');
-                if (mobileOverlay) mobileOverlay.classList.add('active');
-            } else {
-                closeMobileSidebar();
-            }
-        });
-    }
-
-    if (sidebar) {
-        document.addEventListener('click', function (e) {
-            if (window.innerWidth <= 768 &&
-                sidebar.classList.contains('mobile-open') &&
-                !sidebar.contains(e.target) &&
-                e.target !== mobileToggle &&
-                e.target !== mobileOverlay) {
-                closeMobileSidebar();
-            }
-        });
-    }
-
-    if (mobileOverlay) {
-        mobileOverlay.addEventListener('click', closeMobileSidebar);
-    }
-
     /* ==========================================================================
        Theme Toggle
        ========================================================================== */
diff --git a/routes/web.php b/routes/web.php
index 9d3da81..a4b32c9 100755
--- a/routes/web.php
+++ b/routes/web.php
@@ -31,6 +31,7 @@ $router->get('/login', [AuthController::class, 'loginForm']);
 $router->post('/login', [AuthController::class, 'login'], [CSRFMiddleware::class, RateLimitMiddleware::class]);
 $router->get('/register', [AuthController::class, 'registerForm']);
 $router->post('/register', [AuthController::class, 'register'], [CSRFMiddleware::class]);
+$router->get('/logout', [AuthController::class, 'logout']);
 $router->post('/logout', [AuthController::class, 'logout'], [CSRFMiddleware::class]);
 
 $router->get('/profile', [AuthController::class, 'profile'], [AuthMiddleware::class]);
@@ -72,6 +73,11 @@ $router->get('/servers/:id/metrics', [ServerController::class, 'metrics'], [Auth
 $router->post('/servers/:id/thresholds', [ServerController::class, 'saveThresholds'], [AuthMiddleware::class, CSRFMiddleware::class]);
 $router->get('/sidebar/servers', [ServerController::class, 'sidebarServers'], [AuthMiddleware::class]);
 
+$router->get('/account', function () {
+    $view = \ServerManager\Core\App::getInstance()->getView();
+    $view->redirect('/profile');
+});
+
 $router->get('/teams', [TeamController::class, 'index'], [AuthMiddleware::class, RoleMiddleware::class]);
 $router->get('/teams/search-users', [TeamController::class, 'searchUsers'], [AuthMiddleware::class, RoleMiddleware::class]);
 $router->get('/teams/create', [TeamController::class, 'create'], [AuthMiddleware::class, RoleMiddleware::class]);
@@ -90,6 +96,16 @@ $router->post('/terminal/:id/execute', [TerminalController::class, 'execute'], [
 $router->get('/terminal/:id/history', [TerminalController::class, 'history'], [AuthMiddleware::class]);
 $router->post('/terminal/:id/clear-history', [TerminalController::class, 'clearHistory'], [AuthMiddleware::class, CSRFMiddleware::class]);
 
+$router->get('/admin', function () {
+    $view = \ServerManager\Core\App::getInstance()->getView();
+    $view->redirect('/admin/audit');
+}, [AuthMiddleware::class, RoleMiddleware::class]);
+
+$router->get('/admin/activity', function () {
+    $view = \ServerManager\Core\App::getInstance()->getView();
+    $view->redirect('/admin/audit');
+}, [AuthMiddleware::class, RoleMiddleware::class]);
+
 $router->group(['prefix' => 'admin', 'middleware' => [AuthMiddleware::class, RoleMiddleware::class]], function (ServerManager\Core\Router $router) {
     $router->get('/users', [AdminController::class, 'users']);
     $router->post('/users/create', [AdminController::class, 'createUser'], [CSRFMiddleware::class]);
diff --git a/src/Controllers/ApiController.php b/src/Controllers/ApiController.php
index 9ac6c43..69e64a4 100755
--- a/src/Controllers/ApiController.php
+++ b/src/Controllers/ApiController.php
@@ -400,6 +400,7 @@ class ApiController
                 'error' => 'Command execution failed.',
             ], 500);
         }
+    }
 
     public function users(): void
     {
diff --git a/src/Controllers/AuthController.php b/src/Controllers/AuthController.php
index 10fa48e..d68258e 100755
--- a/src/Controllers/AuthController.php
+++ b/src/Controllers/AuthController.php
@@ -67,6 +67,7 @@ class AuthController
         Session::set('username', $user['username']);
         Session::set('user_role', $user['role']);
         Session::set('user_email', $user['email']);
+        Session::set('api_token', $user['api_token']);
         Session::set('login_time', time());
 
         $lifetime = App::getConfig()['session']['lifetime'] ?? 1440;
diff --git a/src/Helpers/functions.php b/src/Helpers/functions.php
index 74b6b54..8b376c8 100755
--- a/src/Helpers/functions.php
+++ b/src/Helpers/functions.php
@@ -47,6 +47,14 @@ if (!function_exists('asset')) {
     }
 }
 
+if (!function_exists('asset_version')) {
+    function asset_version(): string
+    {
+        $config = \ServerManager\Core\App::getConfig();
+        return $config['app']['asset_version'] ?? '0.0.0';
+    }
+}
+
 if (!function_exists('url')) {
     function url(string $path = ''): string
     {
@@ -90,11 +98,23 @@ if (!function_exists('auth')) {
             return null;
         }
 
+        $apiToken = \ServerManager\Core\Session::get('api_token');
+
+        if (empty($apiToken)) {
+            $userModel = new \ServerManager\Models\User();
+            $user = $userModel->findById((int) \ServerManager\Core\Session::get('user_id'));
+            if ($user && !empty($user['api_token'])) {
+                $apiToken = $user['api_token'];
+                \ServerManager\Core\Session::set('api_token', $apiToken);
+            }
+        }
+
         return [
             'id' => \ServerManager\Core\Session::get('user_id'),
             'username' => \ServerManager\Core\Session::get('username'),
             'role' => \ServerManager\Core\Session::get('user_role'),
             'email' => \ServerManager\Core\Session::get('user_email'),
+            'api_token' => $apiToken,
         ];
     }
 }
diff --git a/views/admin/audit.php b/views/admin/audit.php
index 6f3016c..097952c 100755
--- a/views/admin/audit.php
+++ b/views/admin/audit.php
@@ -187,4 +187,4 @@ function selected(string $value, string $compare): string {
     </div>
 </div>
 
-<script src="/assets/js/audit-log.js"></script>
+<script src="/assets/js/audit-log.js?v=<?= asset_version() ?>"></script>
diff --git a/views/admin/notifications.php b/views/admin/notifications.php
index 86185f4..313575e 100644
--- a/views/admin/notifications.php
+++ b/views/admin/notifications.php
@@ -139,4 +139,4 @@ $data = $notifications['data'] ?? [];
     </div>
 </div>
 
-<script src="/assets/js/admin-notifications.js"></script>
+<script src="/assets/js/admin-notifications.js?v=<?= asset_version() ?>"></script>
diff --git a/views/admin/security.php b/views/admin/security.php
index 76576f3..11b2c6a 100755
--- a/views/admin/security.php
+++ b/views/admin/security.php
@@ -102,4 +102,4 @@
     </div>
 </div>
 
-<script src="/assets/js/admin-security.js"></script>
+<script src="/assets/js/admin-security.js?v=<?= asset_version() ?>"></script>
diff --git a/views/admin/users.php b/views/admin/users.php
index 16d2319..fb3c683 100755
--- a/views/admin/users.php
+++ b/views/admin/users.php
@@ -121,4 +121,4 @@
     </div>
 </div>
 
-<script src="/assets/js/admin-users.js"></script>
+<script src="/assets/js/admin-users.js?v=<?= asset_version() ?>"></script>
diff --git a/views/dashboard/index.php b/views/dashboard/index.php
index 03bc55b..544e121 100755
--- a/views/dashboard/index.php
+++ b/views/dashboard/index.php
@@ -165,5 +165,5 @@ $aggregatedMetrics = $aggregatedMetrics ?? [];
 
 <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.7/dist/chart.umd.min.js"></script>
 <script>const aggregatedData = <?= json_encode($aggregatedMetrics, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES) ?>;</script>
-<script src="/assets/js/dashboard-chart.js"></script>
+<script src="/assets/js/dashboard-chart.js?v=<?= asset_version() ?>"></script>
 </div>
diff --git a/views/layouts/auth.php b/views/layouts/auth.php
index 565b29f..d14013b 100755
--- a/views/layouts/auth.php
+++ b/views/layouts/auth.php
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title><?= htmlspecialchars($title ?? 'ServerManager') ?></title>
     <link rel="icon" type="image/svg+xml" href="/assets/img/server.svg">
-    <link rel="stylesheet" href="/assets/css/style.css">
+    <link rel="stylesheet" href="/assets/css/style.css?v=<?= asset_version() ?>">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
 </head>
 <body class="auth-page">
@@ -13,6 +13,6 @@
         <?= $content ?? '' ?>
     </div>
     <div id="toastContainer" class="toast-container"></div>
-    <script src="/assets/js/app.js"></script>
+    <script src="/assets/js/app.js?v=<?= asset_version() ?>"></script>
 </body>
 </html>
diff --git a/views/layouts/main.php b/views/layouts/main.php
index 1629a42..f2ae26a 100755
--- a/views/layouts/main.php
+++ b/views/layouts/main.php
@@ -1,5 +1,4 @@
 <?php
-$user = $user ?? null;
 $notifications = $notifications ?? [];
 $unreadCount = $unreadCount ?? 0;
 $teamId = $teamId ?? null;
@@ -7,6 +6,10 @@ $title = $title ?? 'ServerManager';
 $content = $content ?? '';
 
 $currentRoute = $_SERVER['REQUEST_URI'] ?? '/';
+
+if (!isset($user) || $user === null) {
+    $user = auth();
+}
 ?>
 <!DOCTYPE html>
 <html lang="en">
@@ -16,7 +19,7 @@ $currentRoute = $_SERVER['REQUEST_URI'] ?? '/';
     <title><?= htmlspecialchars($title) ?> — ServerManager</title>
     <meta name="api-token" content="<?= htmlspecialchars($user['api_token'] ?? '') ?>">
     <meta name="csrf-token" content="<?= $this->csrfToken() ?>">
-    <link rel="stylesheet" href="/assets/css/style.css">
+    <link rel="stylesheet" href="/assets/css/style.css?v=<?= asset_version() ?>">
     <link rel="icon" type="image/svg+xml" href="/assets/img/server.svg">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
@@ -41,6 +44,12 @@ $currentRoute = $_SERVER['REQUEST_URI'] ?? '/';
                     <span>Dashboard</span>
                 </a>
 
+                <!-- Notifications -->
+                <a href="/notifications" class="nav-item <?= str_starts_with($currentRoute, '/notifications') ? 'active' : '' ?>">
+                    <i class="fas fa-bell"></i>
+                    <span>Notifications</span>
+                </a>
+
                 <!-- Servers -->
                 <div class="nav-item-accordion <?= str_starts_with($currentRoute, '/servers') || str_starts_with($currentRoute, '/terminal') ? 'expanded' : '' ?>">
                     <a href="#" class="nav-item nav-item-toggle <?= str_starts_with($currentRoute, '/servers') ? 'active' : '' ?>" onclick="toggleServerList(event)">
@@ -53,41 +62,80 @@ $currentRoute = $_SERVER['REQUEST_URI'] ?? '/';
                     </div>
                 </div>
 
-                <!-- Teams -->
+                <!-- Administration -->
+                <?php if (is_super_admin()): ?>
+                <hr class="nav-divider">
+                <div class="nav-section">Administration</div>
+
                 <a href="/teams" class="nav-item <?= str_starts_with($currentRoute, '/teams') ? 'active' : '' ?>">
-                    <i class="fas fa-users"></i>
+                    <i class="fas fa-users-cog"></i>
                     <span>Teams</span>
                 </a>
 
-                <!-- Activity Log (admin+) -->
-                <?php if (is_admin() || is_super_admin()): ?>
-                <a href="/admin/activity" class="nav-item <?= str_starts_with($currentRoute, '/admin/activity') ? 'active' : '' ?>">
+                <a href="/admin/users" class="nav-item <?= str_starts_with($currentRoute, '/admin/users') ? 'active' : '' ?>">
+                    <i class="fas fa-users"></i>
+                    <span>Users</span>
+                </a>
+
+                <a href="/admin/audit" class="nav-item <?= str_starts_with($currentRoute, '/admin/audit') ? 'active' : '' ?>">
                     <i class="fas fa-history"></i>
-                    <span>Activity Log</span>
+                    <span>Audit Logs</span>
                 </a>
-                <?php endif; ?>
 
-                <!-- Admin panel (admin+) -->
-                <?php if (is_admin() || is_super_admin()): ?>
-                <a href="/admin" class="nav-item <?= str_starts_with($currentRoute, '/admin') ? 'active' : '' ?>">
-                    <i class="fas fa-cog"></i>
-                    <span>Administration</span>
+                <a href="/admin/security" class="nav-item <?= str_starts_with($currentRoute, '/admin/security') ? 'active' : '' ?>">
+                    <i class="fas fa-shield-alt"></i>
+                    <span>Security</span>
                 </a>
-                <?php endif; ?>
 
+                <a href="/admin/app-version" class="nav-item <?= str_starts_with($currentRoute, '/admin/app-version') ? 'active' : '' ?>">
+                    <i class="fas fa-mobile-alt"></i>
+                    <span>App Version</span>
+                </a>
+
+                <a href="/admin/notifications" class="nav-item <?= str_starts_with($currentRoute, '/admin/notifications') ? 'active' : '' ?>">
+                    <i class="fas fa-bell"></i>
+                    <span>Notifications</span>
+                </a>
+
+                <a href="/admin/policies" class="nav-item <?= str_starts_with($currentRoute, '/admin/policies') ? 'active' : '' ?>">
+                    <i class="fas fa-file-contract"></i>
+                    <span>Policies</span>
+                </a>
+                <?php elseif (is_admin()): ?>
                 <hr class="nav-divider">
+                <div class="nav-section">Administration</div>
 
-                <!-- Account -->
-                <a href="/account" class="nav-item <?= str_starts_with($currentRoute, '/account') ? 'active' : '' ?>">
-                    <i class="fas fa-user"></i>
-                    <span>My Account</span>
+                <a href="/teams" class="nav-item <?= str_starts_with($currentRoute, '/teams') ? 'active' : '' ?>">
+                    <i class="fas fa-users-cog"></i>
+                    <span>Teams</span>
                 </a>
+                <?php endif; ?>
 
-                <a href="/logout" class="nav-item nav-item-danger">
-                    <i class="fas fa-sign-out-alt"></i>
-                    <span>Log out</span>
+                <!-- Mobile -->
+                <hr class="nav-divider">
+                <div class="nav-section">Mobile</div>
+                <a href="/sysadmin.apk" class="nav-item" download>
+                    <i class="fas fa-download"></i>
+                    <span>Download APK</span>
                 </a>
             </nav>
+
+            <div class="sidebar-footer">
+                <div class="user-info">
+                    <div class="user-avatar"><?= strtoupper(substr($user['username'] ?? '?', 0, 2)) ?></div>
+                    <div class="user-details">
+                        <span class="user-name"><?= htmlspecialchars($user['username'] ?? 'Guest') ?></span>
+                        <span class="user-role"><?= htmlspecialchars(ucfirst(str_replace('_', ' ', $user['role'] ?? 'guest'))) ?></span>
+                    </div>
+                    <div class="user-menu">
+                        <a href="/profile" title="Profile"><i class="fas fa-user-cog"></i></a>
+                        <form method="POST" action="/logout" class="logout-form" style="display:inline">
+                            <input type="hidden" name="_csrf_token" value="<?= $this->csrfToken() ?>">
+                            <button type="submit" title="Logout" style="background:none;border:none;color:inherit;cursor:pointer;padding:0;font:inherit;line-height:1"><i class="fas fa-sign-out-alt"></i></button>
+                        </form>
+                    </div>
+                </div>
+            </div>
         </aside>
 
         <!-- Main Content -->
@@ -153,12 +201,12 @@ $currentRoute = $_SERVER['REQUEST_URI'] ?? '/';
 
     <div id="toastContainer" class="toast-container"></div>
 
-    <script src="/assets/js/app.js"></script>
+    <script src="/assets/js/app.js?v=<?= asset_version() ?>"></script>
     <?php if (isset($scripts)): ?>
         <?php foreach ($scripts as $script): ?>
             <script src="<?= htmlspecialchars($script) ?>"></script>
         <?php endforeach; ?>
     <?php endif; ?>
-<script src="/assets/js/main.js"></script>
+<script src="/assets/js/main.js?v=<?= asset_version() ?>"></script>
 </body>
 </html>
diff --git a/views/notifications/index.php b/views/notifications/index.php
index 1a9bfb5..b71368d 100644
--- a/views/notifications/index.php
+++ b/views/notifications/index.php
@@ -67,4 +67,4 @@ $data = $notifications ?? [];
 </div>
 <?php endif; ?>
 
-<script src="/assets/js/notifications.js"></script>
+<script src="/assets/js/notifications.js?v=<?= asset_version() ?>"></script>
diff --git a/views/pages/landing.php b/views/pages/landing.php
index da68394..177a18d 100644
--- a/views/pages/landing.php
+++ b/views/pages/landing.php
@@ -1,4 +1,4 @@
-<?php ?><link rel="stylesheet" href="/assets/css/landing.css">
+<?php ?><link rel="stylesheet" href="/assets/css/landing.css?v=<?= asset_version() ?>">
 
 <div class="landing-page">
     <section class="landing-hero">
diff --git a/views/pages/privacy.php b/views/pages/privacy.php
index 321eb4a..0c61462 100644
--- a/views/pages/privacy.php
+++ b/views/pages/privacy.php
@@ -1,4 +1,4 @@
-<?php ?><link rel="stylesheet" href="/assets/css/legal.css">
+<?php ?><link rel="stylesheet" href="/assets/css/legal.css?v=<?= asset_version() ?>">
 <div class="legal-page">
     <div class="legal-container">
         <div class="legal-card" style="width:85%;margin:3rem auto;padding:3rem 3.5rem;background:var(--card-bg);border-radius:12px;box-shadow:0 2px 16px rgba(0,0,0,0.18)">
diff --git a/views/pages/terms.php b/views/pages/terms.php
index 01f293c..b0f7c47 100644
--- a/views/pages/terms.php
+++ b/views/pages/terms.php
@@ -1,4 +1,4 @@
-<?php ?><link rel="stylesheet" href="/assets/css/legal.css">
+<?php ?><link rel="stylesheet" href="/assets/css/legal.css?v=<?= asset_version() ?>">
 <div class="legal-page">
     <div class="legal-container">
         <div class="legal-card" style="width:85%;margin:3rem auto;padding:3rem 3.5rem;background:var(--card-bg);border-radius:12px;box-shadow:0 2px 16px rgba(0,0,0,0.18)">
diff --git a/views/servers/create.php b/views/servers/create.php
index 2e60b47..b494ff0 100644
--- a/views/servers/create.php
+++ b/views/servers/create.php
@@ -171,4 +171,4 @@ document.querySelectorAll('.auth-method-tabs .tab').forEach(tab => {
 
 let permIndex = <?= !empty($savedPerms) && is_array($savedPerms) ? count($savedPerms) : 0 ?>;
 </script>
-<script src="/assets/js/server-permissions.js"></script>
+<script src="/assets/js/server-permissions.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/database.php b/views/servers/database.php
index 6160977..82aff64 100644
--- a/views/servers/database.php
+++ b/views/servers/database.php
@@ -95,5 +95,5 @@ $status = $db['status'] ?? 'inactive';
 const serverId = <?= json_encode($server['id']) ?>;
 const databases = <?= json_encode(array_column($databases, 'name')) ?>;
 </script>
-<script src="/assets/js/database-manager.js"></script>
+<script src="/assets/js/database-manager.js?v=<?= asset_version() ?>"></script>
 <?php endif; ?>
diff --git a/views/servers/edit.php b/views/servers/edit.php
index 8e37d52..fd525ac 100644
--- a/views/servers/edit.php
+++ b/views/servers/edit.php
@@ -156,4 +156,4 @@ $hasKey = !empty($server['ssh_key']);
 <script>
 let permIndex = <?= count($permissions) ?>;
 </script>
-<script src="/assets/js/server-permissions.js"></script>
+<script src="/assets/js/server-permissions.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/index.php b/views/servers/index.php
index 7d0e49a..baaa00f 100644
--- a/views/servers/index.php
+++ b/views/servers/index.php
@@ -141,4 +141,4 @@ $groups = $groups ?? [];
     </div>
 </div>
 
-<script src="/assets/js/server-list.js"></script>
+<script src="/assets/js/server-list.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/nginx.php b/views/servers/nginx.php
index fb3d1af..4386cd1 100644
--- a/views/servers/nginx.php
+++ b/views/servers/nginx.php
@@ -323,5 +323,5 @@ $configValid = $nginx['config_valid'] ?? false;
 <script>
 const serverId = <?= json_encode($server['id']) ?>;
 </script>
-<script src="/assets/js/nginx-manager.js"></script>
+<script src="/assets/js/nginx-manager.js?v=<?= asset_version() ?>"></script>
 <?php endif; ?>
diff --git a/views/servers/processes.php b/views/servers/processes.php
index 3427074..9f9d83e 100644
--- a/views/servers/processes.php
+++ b/views/servers/processes.php
@@ -103,4 +103,4 @@ $processList = $processList ?? [];
 <script>
 const serverId = <?= $server['id'] ?>;
 </script>
-<script src="/assets/js/server-processes.js"></script>
+<script src="/assets/js/server-processes.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/services.php b/views/servers/services.php
index 49eef86..cd03945 100644
--- a/views/servers/services.php
+++ b/views/servers/services.php
@@ -51,5 +51,5 @@ const allServices = <?= json_encode($services, JSON_HEX_TAG | JSON_UNESCAPED_SLA
 const perPage = <?= $perPage ?>;
 const serverId = <?= $server['id'] ?>;
 </script>
-<script src="/assets/js/server-services.js"></script>
+<script src="/assets/js/server-services.js?v=<?= asset_version() ?>"></script>
 
diff --git a/views/servers/show.php b/views/servers/show.php
index c117b63..602af29 100644
--- a/views/servers/show.php
+++ b/views/servers/show.php
@@ -375,4 +375,4 @@ $canManage = $server_role === 'owner' || $server_role === 'manager';
 const serverId = <?= $server['id'] ?>;
 const serverName = '<?= addslashes($server['name'] ?? '') ?>';
 </script>
-<script src="/assets/js/server-show.js"></script>
+<script src="/assets/js/server-show.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/ssl.php b/views/servers/ssl.php
index 5263b70..d66cd72 100644
--- a/views/servers/ssl.php
+++ b/views/servers/ssl.php
@@ -191,4 +191,4 @@ $certs = $ssl['certificates'] ?? [];
 <script>
 const serverId = <?= $server['id'] ?>;
 </script>
-<script src="/assets/js/server-ssl.js"></script>
+<script src="/assets/js/server-ssl.js?v=<?= asset_version() ?>"></script>
diff --git a/views/servers/system_users.php b/views/servers/system_users.php
index f956dc2..3fb59a4 100644
--- a/views/servers/system_users.php
+++ b/views/servers/system_users.php
@@ -123,4 +123,4 @@ $lastLogins = $sysusers['last_logins'] ?? '';
 <script>
 const serverId = <?= $server['id'] ?>;
 </script>
-<script src="/assets/js/system-users.js"></script>
+<script src="/assets/js/system-users.js?v=<?= asset_version() ?>"></script>
diff --git a/views/teams/index.php b/views/teams/index.php
index f509bda..7deb796 100644
--- a/views/teams/index.php
+++ b/views/teams/index.php
@@ -71,4 +71,4 @@
     <input type="hidden" name="_csrf_token" value="<?= $this->csrfToken() ?>">
 </form>
 
-<script src="/assets/js/team-index.js"></script>
+<script src="/assets/js/team-index.js?v=<?= asset_version() ?>"></script>
diff --git a/views/teams/show.php b/views/teams/show.php
index ccab00f..22b7796 100644
--- a/views/teams/show.php
+++ b/views/teams/show.php
@@ -150,4 +150,4 @@ const teamId = <?= $team['id'] ?>;
 const teamName = '<?= htmlspecialchars(addslashes($team['name'] ?? '')) ?>';
 const teamDescription = '<?= htmlspecialchars(addslashes($team['description'] ?? '')) ?>';
 </script>
-<script src="/assets/js/team-show.js"></script>
+<script src="/assets/js/team-show.js?v=<?= asset_version() ?>"></script>
diff --git a/views/terminal/index.php b/views/terminal/index.php
index 87249ad..dac85fa 100755
--- a/views/terminal/index.php
+++ b/views/terminal/index.php
@@ -150,4 +150,4 @@ $commandHistory = $commandHistory ?? [];
 <script>
 const serverId = <?= $server['id'] ?>;
 </script>
-<script src="/assets/js/terminal.js"></script>
+<script src="/assets/js/terminal.js?v=<?= asset_version() ?>"></script>