body {
      background: #c8ecf5;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    
    .card {
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      border: none;
    }
    
    .section-title1 {
      color: #2c3e50;
      font-weight: 700;
      border-left: 4px solid #3498db;
      padding-left: 12px;
    }
    
    .autocomplete {
      position: relative;
    }
    
    .autocomplete-items {
      position: absolute;
      border: 1px solid #d4d4d4;
      border-bottom: none;
      border-top: none;
      z-index: 99;
      top: 100%;
      left: 0;
      right: 0;
      max-height: 200px;
      overflow-y: auto;
      background: white;
      border-radius: 0 0 8px 8px;
    }
    
    .autocomplete-item {
      padding: 10px;
      cursor: pointer;
      border-bottom: 1px solid #d4d4d4;
      background-color: #fff;
    }
    
    .autocomplete-item:hover {
      background-color: #e9e9e9;
    }
    
    .autocomplete-item small {
      color: #666;
      font-size: 0.85em;
    }
    
    .autocomplete-active {
      background-color: #007bff !important;
      color: #ffffff;
    }
    
    .table-container {
      position: relative;
      min-height: 200px;
      max-height: 500px;
      overflow-y: auto;
      border: 1px solid #dee2e6;
      border-radius: 8px;
      background: white;
    }
    
    .table thead th {
      position: sticky;
      top: 0;
      background: #f8f9fa;
      z-index: 10;
    }
    
    .action-search-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }
    
    .action-buttons-group {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    
    .table-search-input {
      min-width: 250px;
    }
    
    .loading-spinner {
      display: none;
      text-align: center;
      padding: 2rem;
    }
    
    .no-students {
      text-align: center;
      padding: 2rem;
      color: #6c757d;
    }
    
    .toast-container {
      position: fixed;
      top: 1rem;
      right: 1rem;
      z-index: 1080;
    }
    
    .custom-toast {
      padding: 12px 16px;
      margin-bottom: 10px;
      border-radius: 4px;
      color: white;
      font-weight: 500;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
      animation: slideIn 0.3s ease-out;
      max-width: 300px;
    }
    
    @keyframes slideIn {
      from {
        transform: translateX(100%);
        opacity: 0;
      }
      to {
        transform: translateX(0);
        opacity: 1;
      }
    }
    
    .toast-success {
      background-color: #28a745;
    }
    
    .toast-danger {
      background-color: #dc3545;
    }
    
    .toast-warning {
      background-color: #ffc107;
      color: #212529;
    }
    
    .toast-info {
      background-color: #17a2b8;
    }
    
    .student-status {
      font-size: 12px;
      padding: 4px 8px;
      border-radius: 4px;
      font-weight: bold;
    }
    
    .status-active {
      background-color: #d4edda;
      color: #155724;
    }
    
    .status-inactive {
      background-color: #f8d7da;
      color: #721c24;
    }
    
    .status-graduated {
      background-color: #e2e3e5;
      color: #383d41;
    }
    
    @media (max-width: 768px) {
      .action-search-row {
        flex-direction: column;
        align-items: stretch;
      }
      
      .action-buttons-group {
        justify-content: center;
      }
      
      .table-search-input {
        min-width: 100%;
      }
    }