.sidebar {
            min-height: 100vh;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }
        .sidebar .nav-link {
            color: rgba(255, 255, 255, 0.8);
            transition: all 0.3s;
        }
        .sidebar .nav-link:hover {
            color: white;
            background-color: rgba(255, 255, 255, 0.1);
        }
        .sidebar .nav-link.active {
            background-color: rgba(255, 255, 255, 0.2);
            color: white;
        }
        .main-content {
            background-color: #f8f9fa;
            min-height: 100vh;
        }
        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0,0,0,0.08);
        }
        .stats-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }
        .table-responsive {
            border-radius: 10px;
            overflow: hidden;
        }

        /* Select2 Bootstrap 5 Integration */
        .select2-container--default .select2-selection--single {
            height: 38px;
            border: 1px solid #ced4da;
            border-radius: 0.375rem;
            background-color: #fff;
            font-size: 0.875rem;
        }

        .select2-container--default .select2-selection--single .select2-selection__rendered {
            color: #212529;
            line-height: 36px;
            padding-left: 12px;
            padding-right: 20px;
        }

        .select2-container--default .select2-selection--single .select2-selection__placeholder {
            color: #6c757d;
        }

        .select2-container--default .select2-selection--single .select2-selection__arrow {
            height: 36px;
            right: 8px;
        }

        .select2-container--default .select2-selection--single .select2-selection__arrow b {
            border-color: #6c757d transparent transparent transparent;
            margin-top: -2px;
        }

        .select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow b {
            border-color: transparent transparent #6c757d transparent;
            margin-top: -7px;
        }

        .select2-container--default .select2-selection--single .select2-selection__clear {
            cursor: pointer;
            float: right;
            font-weight: bold;
            margin-right: 30px;
            margin-top: 8px;
            color: #6c757d;
        }

        .select2-container--default .select2-selection--single .select2-selection__clear:hover {
            color: #495057;
        }

        .select2-container--default .select2-dropdown {
            border: 1px solid #ced4da;
            border-radius: 0.375rem;
            box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
        }

        .select2-container--default .select2-results__option {
            padding: 8px 12px;
            font-size: 0.875rem;
        }

        .select2-container--default .select2-results__option--highlighted[aria-selected] {
            background-color: #0d6efd;
            color: white;
        }

        .select2-container--default .select2-search--dropdown .select2-search__field {
            border: 1px solid #ced4da;
            border-radius: 0.375rem;
            padding: 6px 12px;
            font-size: 0.875rem;
        }

        .select2-container--default .select2-search--dropdown .select2-search__field:focus {
            outline: none;
            border-color: #86b7fe;
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }

        /* Focus states */
        .select2-container--default .select2-selection--single:focus-within {
            border-color: #86b7fe;
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
            outline: 0;
        }

        /* Logo styles */
        .sidebar-logo {
            height: 88px;
            margin-left: -35px;
            background: #fff;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
            border-right: 1px solid #6878e2;
        }

        .login-logo img {
            width: 325px;
        }