:root {
    --bg: #0f172a;
    --panel: #111827;
    --card: #0b1220;
    --muted: #9aa3b2;
    --text: #e5e7eb;
    --primary: #3b82f6;
    --primary-600: #2563eb;
    --danger: #ef4444;
    --ok: #10b981;
    --warn: #f59e0b;
    --border: #1f2937;
    --chip: #1f2a44;
    --table-alt: #0d1530;
  }
  
  * {
    box-sizing: border-box;
  }
  
  html,
  body {
    margin: 0;
    padding: 0;
    background: linear-gradient(180deg, #0b1220, #0a1020 60%, #070b17);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
      Helvetica, sans-serif;
  }
  
  .hidden {
    display: none !important;
  }
  
  .topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(5, 10, 20, 0.7);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 10px 16px;
  }
  
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .logo {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    color: white;
    font-weight: 800;
    padding: 6px 10px;
    border-radius: 8px;
  }
  
  .brand-text {
    font-weight: 700;
    color: #dbeafe;
  }
  
  .nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 16px;
    width: 100%;
  }
  
  .nav-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
  }
  
  .nav-btn:hover {
    border-color: var(--primary);
  }
  
  .spacer {
    flex: 1;
  }
  
  .icon-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 50px;
    cursor: pointer;
  }
  
  .notif {
    position: relative;
    margin-right: 8px;
  }
  
  .badge {
    background: var(--danger);
    color: #fff;
    border-radius: 10px;
    padding: 1px 6px;
    font-size: 12px;
    margin-left: 4px;
  }
  
  .notif-panel {
    position: absolute;
    right: 0;
    top: 40px;
    min-width: 280px;
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 8px;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    max-height: 360px;
    overflow: auto;
  }
  
  .user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--chip);
  }
  
  .role {
    color: #c7d2fe;
    background: #1e1b4b;
    border: 1px solid #312e81;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
  }
  
  .btn {
    background: #1f2937;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
  }
  
  .btn:hover {
    border-color: var(--primary);
  }
  
  .btn.primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-600);
  }
  
  .btn.secondary {
    background: transparent;
  }
  
  .btn.danger {
    background: var(--danger);
    color: #fff;
    border-color: #dc2626;
  }
  
  .btn.block {
    width: 100%;
  }
  
  .link {
    background: transparent;
    border: none;
    color: #93c5fd;
    cursor: pointer;
    padding: 6px 0;
  }
  
  .view {
    padding: 16px;
  }
  
  .card {
    background: linear-gradient(180deg, #0b1220, #0a1120);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.25);
  }
  
  .login-card {
    max-width: 360px;
    margin: 40px auto;
    text-align: center;
  }
  
  .form label {
    display: block;
    margin-bottom: 10px;
    color: #cbd5e1;
  }
  
  .form input,
  .form select,
  .form textarea {
    width: 100%;
    padding: 8px 10px;
    margin-top: 6px;
    background: #0b1220;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
  }
  
  .form .row {
    display: flex;
    gap: 10px;
    align-items: center;
  }
  
  .table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
  }
  
  .table th,
  .table td {
    border-bottom: 1px solid var(--border);
    padding: 8px;
    text-align: left;
    font-size: 14px;
  }
  
  .table tbody tr:nth-child(odd) {
    background: var(--table-alt);
  }
  
  .search {
    width: 100%;
    padding: 8px;
    border-radius: 8px;
    background: #0b1220;
    color: var(--text);
    border: 1px solid var(--border);
    margin-bottom: 10px;
  }
  
  .grid {
    display: grid;
    gap: 14px;
  }
  
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .stats {
    display: grid;
    gap: 8px;
  }
  
  .stats .stat {
    display: flex;
    justify-content: space-between;
    background: #0c1326;
    border: 1px solid var(--border);
    padding: 10px;
    border-radius: 8px;
  }
  
  .actions {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
  }
  
  .tabs {
    margin-top: 18px;
    margin-bottom: 8px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }
  
  .tab-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
  }
  
  .tab-btn.active {
    border-color: var(--primary);
    background: #0b1a36;
  }
  
  .tab-content {
    margin-top: 10px;
  }
  
  .tag {
    background: #0d213f;
    color: #c7d2fe;
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid #1d2f57;
    margin-left: 8px;
    font-size: 12px;
  }
  
  .note {
    color: var(--muted);
    font-size: 13px;
  }
  
  .toast {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: #0b1220;
    color: #fff;
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 20;
  }
  
  .modal {
    position: fixed;
    inset: 0;
    background: rgba(6, 12, 25, 0.55);
    display: grid;
    place-items: center;
    z-index: 30;
  }
  
  .modal-content {
    width: 96%;
    max-width: 420px;
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 16px;
    border-radius: 10px;
  }
  
  @media (max-width: 980px) {
    .grid-2 {
      grid-template-columns: 1fr;
    }
    .grid-3 {
      grid-template-columns: 1fr;
    }
    .topbar {
      flex-wrap: wrap;
      gap: 10px;
    }
  }