сделал кнопку настроек, вкладку настроек и сворачивание боковой панели

frontend/admin/css/components.css

@@ -753,4 +753,45 @@ tbody tr:hover {
     display: flex;
     align-items: center;
     gap: 8px;
+}
+
+/* ===== Theme Toggle Button ===== */
+.theme-toggle {
+    width: 42px;
+    height: 42px;
+    border: none;
+    border-radius: 50%;
+    background: var(--bg-card);
+    border: 1px solid var(--bg-card-border);
+    color: var(--text-primary);
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
+    z-index: 100;
+    flex-shrink: 0;
+}
+
+.theme-toggle svg {
+    width: 20px;
+    height: 20px;
+    transition: transform 0.4s ease;
+}
+
+.theme-toggle:hover {
+    transform: scale(1.1);
+    box-shadow: 0 4px 16px var(--accent-glow);
+}
+
+.theme-toggle:active {
+    transform: scale(0.95);
+}
+
+.theme-toggle--fixed {
+    position: fixed;
+    top: 1.25rem;
+    right: 1.25rem;
 }