.login-options {
      display: flex;
      flex-direction: row;
      gap: 20px;
      margin: 30px 0;
      align-items: stretch;
      justify-content: center;
      flex-wrap: nowrap;
    }

    .login-card {
      flex: 1;
      min-width: 300px;
      max-width: 400px;
      padding: 25px;
      border-radius: 8px;
      background: white;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      display: flex;
      flex-direction: column;
    }
    .card-content {
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .card-button {
      margin-top: auto;
      padding: 20px 15px 0 15px;
    }
    .btn-cac, .btn-manual {
      width: 100%;
      padding: 12px;
      font-size: 16px;
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      color: #fff;
      background-color: #004080;
      border: 2px solid #004080;
      transition: background-color 0.3s ease, border-color 0.3s ease;
    }
    .btn-cac:hover, .btn-manual:hover {
      background-color: #0066cc;
      border-color: #0066cc;
    }
    .icon {
      font-size: 18px;
    }
    #searchResults {
      display: none;
      position: absolute;
      width: calc(100% - 30px);
      max-height: 200px;
      overflow-y: auto;
      z-index: 1000;
    }
    .list-group-item {
      cursor: pointer;
      transition: background-color 0.2s;
      text-align: left;
      padding: 8px 12px;
    }
    .list-group-item:hover {
      background-color: #f8f9fa;
    }
    .list-group-item.text-danger {
      background-color: #f8d7da;
      border-color: #f5c6cb;
    }
    .fa-exclamation-triangle {
      color: #dc3545;
    }
    .admin-header {
      background-color: #2c3e50;
      color: white;
      padding: 15px;
      border-radius: 8px;
      margin-bottom: 20px;
    }
    #pinDialog {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.5);
      z-index: 1050;
    }
    .pin-dialog-content {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 350px;
      background: white;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    }
    .btn-cac .spinner-border {
      vertical-align: middle;
      margin-left: 8px;
    }
/* Add spinner styles */
    .spinner {
      border: 3px solid rgba(0, 0, 0, 0.1);
      border-radius: 50%;
      border-top: 3px solid #007bff;
      width: 20px;
      height: 20px;
      animation: spin 1s linear infinite;
      display: inline-block;
      margin-left: 8px;
      vertical-align: middle;
    }
    
    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }