* { margin: 0; padding: 0; box-sizing: border-box; }
    
    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      padding: 20px;
    }

    .container { max-width: 1400px; margin: 0 auto; }

    .header {
      background: white;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 6px rgba(0,0,0,0.1);
      margin-bottom: 30px;
    }

    .header h1 {
      color: #667eea;
      font-size: 28px;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .header p { color: #666; }

    .card {
      background: white;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 6px rgba(0,0,0,0.1);
      margin-bottom: 30px;
    }

    .card h2 {
      color: #333;
      margin-bottom: 20px;
      padding-bottom: 10px;
      border-bottom: 2px solid #f0f0f0;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .form-group { margin-bottom: 20px; }

    .form-group label {
      display: block;
      color: #555;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .form-group input,
    .form-group select {
      width: 100%;
      padding: 12px;
      border: 2px solid #e0e0e0;
      border-radius: 6px;
      font-size: 14px;
      transition: border-color 0.3s;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    .form-group input:focus,
    .form-group select:focus {
      outline: none;
      border-color: #667eea;
    }

    .form-group small {
      display: block;
      color: #999;
      margin-top: 5px;
      font-size: 12px;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .btn {
      padding: 12px 24px;
      border: none;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn:disabled { opacity: 0.6; cursor: not-allowed; }

    .btn-primary {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
    }

    .btn-primary:hover:not(:disabled) {
      transform: translateY(-2px);
      box-shadow: 0 4px 8px rgba(102, 126, 234, 0.4);
    }

    .btn-secondary { background: #6c757d; color: white; }
    .btn-danger { background: #dc3545; color: white; }
    .btn-success { background: #28a745; color: white; }
    .btn-warning { background: #ffc107; color: #333; }
    .btn-info { background: #17a2b8; color: white; }
    .btn-small { padding: 8px 16px; font-size: 12px; }

    .table-container {
      overflow-x: auto;
      max-height: 400px;
      overflow-y: auto;
    }

    table { width: 100%; border-collapse: collapse; }

    thead {
      background: #f8f9fa;
      position: sticky;
      top: 0;
      z-index: 10;
    }

    th {
      padding: 15px;
      text-align: left;
      font-weight: 600;
      color: #555;
      border-bottom: 2px solid #dee2e6;
    }

    td {
      padding: 15px;
      border-bottom: 1px solid #e9ecef;
      color: #333;
    }

    tbody tr:hover { background: #f8f9fa; }

    .badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 600;
    }

    .badge-success { background: #d4edda; color: #155724; }
    .badge-danger { background: #f8d7da; color: #721c24; }
    .badge-warning { background: #fff3cd; color: #856404; }
    .badge-info { background: #d1ecf1; color: #0c5460; }

    .alert {
      padding: 15px 20px;
      border-radius: 6px;
      margin-bottom: 20px;
      display: none;
      animation: slideIn 0.3s ease;
    }

    @keyframes slideIn {
      from { opacity: 0; transform: translateY(-10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .alert-success { background: #d4edda; border: 1px solid #c3e6cb; color: #155724; }
    .alert-error { background: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; }
    .alert-info { background: #d1ecf1; border: 1px solid #bee5eb; color: #0c5460; }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-bottom: 30px;
    }

    .stat-card {
      background: white;
      padding: 24px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      border-left: 4px solid #667eea;
      transition: transform 0.2s;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }

    .stat-card.success { border-left-color: #28a745; }
    .stat-card.danger { border-left-color: #dc3545; }
    .stat-card.warning { border-left-color: #ffc107; }

    .stat-value {
      font-size: 32px;
      font-weight: bold;
      color: #667eea;
      margin: 10px 0;
    }

    .stat-card.success .stat-value { color: #28a745; }
    .stat-card.danger .stat-value { color: #dc3545; }
    .stat-card.warning .stat-value { color: #ffc107; }

    .stat-label {
      color: #666;
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .stat-sublabel {
      color: #999;
      font-size: 12px;
      margin-top: 5px;
    }

    .actions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .empty-state {
      text-align: center;
      padding: 60px 20px;
      color: #999;
    }

    .empty-state-icon {
      font-size: 64px;
      margin-bottom: 20px;
    }

    .loading {
      display: none;
      text-align: center;
      padding: 40px;
      color: #667eea;
    }

    .loading-spinner {
      border: 4px solid #f3f3f3;
      border-top: 4px solid #667eea;
      border-radius: 50%;
      width: 50px;
      height: 50px;
      animation: spin 1s linear infinite;
      margin: 0 auto 20px;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    .modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.6);
      z-index: 1000;
      align-items: center;
      justify-content: center;
    }

    .modal.active { display: flex; }

    .modal-content {
      background: white;
      padding: 30px;
      border-radius: 10px;
      max-width: 600px;
      width: 90%;
      max-height: 90vh;
      overflow-y: auto;
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 15px;
      border-bottom: 2px solid #f0f0f0;
    }

    .modal-header h3 {
      color: #333;
      font-size: 20px;
    }

    .close-modal {
      background: none;
      border: none;
      font-size: 28px;
      color: #999;
      cursor: pointer;
      line-height: 1;
      padding: 0;
      width: 30px;
      height: 30px;
    }

    .close-modal:hover { color: #333; }

    .actions {
      display: flex;
      gap: 10px;
      margin-top: 20px;
      justify-content: flex-end;
    }

    .info-box {
      background: #e7f3ff;
      border-left: 4px solid #2196F3;
      padding: 15px;
      border-radius: 4px;
      margin-bottom: 20px;
    }

    .info-box p {
      margin: 0;
      color: #333;
      font-size: 14px;
    }

    .config-status {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
    }

    .config-status.ok { background: #d4edda; color: #155724; }
    .config-status.error { background: #f8d7da; color: #721c24; }