/* Container styles */
        #products-container {
            display: grid;
            grid-template-columns: 1fr;
            /* Single column layout */
            gap: 1rem;
            /* Space between items */
        }

        /* Product item styles */
        .product-item {
            background-color: #f9fafb;
            /* Light gray background */
            border: 1px solid #d1d5db;
            /* Border with light gray color */
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            /* Subtle shadow for depth */
            border-radius: 0.5rem;
            /*  corners */
            padding: 1rem;
            /* Inner spacing */
            display: none;
            /* Default hidden, will be shown by JavaScript */
        }

        .product-item:first-of-type {
            display: block;
            /* Show the first item by default */
        }

        /* Text styles */
        .product-item div {
            margin-bottom: 0.5rem;
            /* Space between lines */
            color: #4b5563;
            /* Gray text */
            font-size: 0.875rem;
            /* Slightly small font */
        }

        .product-item .text-lg {
            font-size: 1.125rem;
            /* Large text */
            font-weight: 600;
            /* Semi-bold */
            color: #1f2937;
            /* Dark gray */
        }

        .product-item .text-blue-600 {
            color: #2563eb;
            /* Blue for emphasis */
        }

        .product-item .font-medium {
            font-weight: 500;
            /* Medium weight */
        }

        .product-item .font-semibold {
            font-weight: 600;
            /* Semi-bold weight */
        }

        /* Pagination styles */
        #pagination {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            /* Space between buttons */
            margin-top: 1.5rem;
            /* Space above pagination */
        }

        .pagination-button {
            background-color: #024ba2;
            /* Blue background */
            color: #ffffff;
            /* White text */
            font-size: 0.875rem;
            /* Small font */
            font-weight: 500;
            /* Medium weight */
            padding: 0.5rem 1rem;
            /* Padding for clickable size */
            border-radius: 0.25rem;
            /*  corners */
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            /* Light shadow */
            cursor: pointer;
            /* Pointer cursor for interactivity */
            transition: background-color 0.3s;
            /* Smooth hover effect */
            outline: none !important;
            border: none;
        }

        .pagination-button:hover {
            background-color: #2563eb;
            /* Darker blue on hover */
        }

        /* Responsive adjustments */
        @media (min-width: 768px) {
            #products-container {
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
                /* Responsive grid for wider screens */
            }
        }

        #default-tab li {
            color: white !important;
        }

        /* ==== Select2 - No Border Tailwind Style ==== */
        .select2-container {
            width: 100% !important;
            font-size: 0.875rem;
            /* text-sm */
            border: 1px solid #f9fafb !important;
        }

        .select2-container--default .select2-selection--single {
            background-color: #f1f5f9;
            /* bg-slate-100 */
            border: none !important;
            border-radius: 0.375rem;
            /* rounded-md */
            height: 2.5rem;
            /* h-10 */
            display: flex;
            align-items: center;
            box-shadow: none !important;
            transition: background-color 0.2s ease-in-out;
        }

        .select2-container--default .select2-selection--single:hover {
            background-color: #e2e8f0;
            /* bg-slate-200 */
        }

        .select2-container--default .select2-selection--single:focus,
        .select2-container--default .select2-selection--single:active {
            background-color: #e2e8f0;
            /* focus nhẹ */
            outline: none !important;
            border: none !important;
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
            /* viền sáng rất nhẹ */
        }

        .select2-container--default .select2-selection--single .select2-selection__rendered {
            padding-left: 0.75rem;
            color: #111827;
            /* text-gray-900 */
            line-height: 2.5rem;
        }

        .select2-container--default .select2-selection--single .select2-selection__arrow {
            height: 2.5rem;
            right: 0.75rem;
        }

        /* Dropdown */
        .select2-dropdown {
            border: none !important;
            border-radius: 0.5rem;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            margin-top: 6px;
            overflow: hidden;
            background-color: #fff;
        }

        .select2-results__option {
            padding: 0.5rem 0.75rem;
            font-size: 0.875rem;
            color: #111827;
            cursor: pointer;
            transition: background-color 0.15s ease;
        }

        .select2-results__option--highlighted {
            background-color: #2563eb;
            /* blue-600 */
            color: #fff;
        }

        /* Mobile optimization */
        @media (max-width: 640px) {
            .select2-container--default .select2-selection--single {
                height: 2.75rem;
                font-size: 1rem;
            }

            .select2-results__option {
                padding: 0.75rem 1rem;
                font-size: 1rem;
            }
        }