:root {
            /* Design System Tokens - Semantic Colors */
            --surface-primary: 0 0% 100%;
            --surface-secondary: 210 40% 96.1%;
            --surface-tertiary: 210 40% 96.1%;
            --surface-inverse: 222.2 84% 4.9%;
            
            --content-primary: 222.2 84% 4.9%;
            --content-secondary: 215.4 16.3% 46.9%;
            --content-tertiary: 215.4 16.3% 46.9%;
            --content-inverse: 210 40% 98%;
            
            --border-primary: 214.3 31.8% 91.4%;
            --border-secondary: 214.3 31.8% 91.4%;
            --border-focus: 221.2 83.2% 53.3%;
            
            --action-primary: 221.2 83.2% 53.3%;
            --action-primary-hover: 221.2 83.2% 48.3%;
            --action-secondary: 210 40% 96.1%;
            --action-destructive: 0 84.2% 60.2%;
            
            --feedback-success: 142 76% 36%;
            --feedback-warning: 38 92% 50%;
            --feedback-error: 0 84.2% 60.2%;
            --feedback-info: 221.2 83.2% 53.3%;
            
            /* Spacing and Layout */
            --space-component-padding: 0.625rem 1.25rem;
            --space-component-gap: 0.5rem;
            --space-section-gap: 2rem;
            --radius-normal: 8px;
            --radius-large: 12px;
            --shadow-normal: 0 1px 3px rgba(0, 0, 0, 0.1);
            --shadow-pronounced: 0 4px 12px rgba(0, 0, 0, 0.15);
            
            /* Typography Scale */
            --text-display: 3rem;
            --text-heading-1: 2.25rem;
            --text-heading-2: 1.875rem;
            --text-heading-3: 1.5rem;
            --text-body-large: 1.125rem;
            --text-body: 1rem;
            --text-body-small: 0.875rem;
            --text-caption: 0.75rem;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html,
        body {
            overflow-x: hidden;
            max-width: 100%;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: hsl(var(--surface-primary));
            color: hsl(var(--content-primary));
            line-height: 1.6;
        }

        /* Layout Container */
        .dashboard-container {
            display: flex;
            min-height: 100vh;
            overflow-x: hidden;
            max-width: 100vw;
        }

        /* Sidebar */
        .sidebar {
            width: 260px;
            background: hsl(var(--surface-secondary));
            border-right: 1px solid hsl(var(--border-primary));
            padding: 2rem 1.5rem;
            position: fixed;
            height: 100vh;
            overflow-y: auto;
            transition: transform 0.3s ease;
        }

        .sidebar.collapsed {
            transform: translateX(-100%);
        }

        .sidebar-header {
            margin-bottom: 2rem;
        }

        .sidebar-logo {
            font-size: var(--text-heading-3);
            font-weight: 700;
            color: hsl(var(--action-primary));
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
        }

        .sidebar-subtitle {
            font-size: var(--text-body-small);
            color: hsl(var(--content-secondary));
        }

        .sidebar-nav {
            list-style: none;
        }

        .sidebar-nav-item {
            margin-bottom: 0.5rem;
        }

        .sidebar-nav-link {
            display: flex;
            align-items: center;
            padding: 0.75rem 1rem;
            color: hsl(var(--content-secondary));
            text-decoration: none;
            border-radius: var(--radius-normal);
            transition: all 0.2s;
            font-weight: 500;
        }

        .sidebar-nav-link:hover {
            background: hsl(var(--surface-tertiary));
            color: hsl(var(--content-primary));
        }

        .sidebar-nav-link.active {
            background: hsl(var(--action-primary));
            color: white;
        }

        .sidebar-icon {
            width: 20px;
            height: 20px;
            margin-right: 0.75rem;
        }

        /* Main Content */
        .main-content {
            flex: 1;
            margin-left: 260px;
            transition: margin-left 0.3s ease;
            overflow-x: hidden;
            max-width: 100%;
        }

        .main-content.expanded {
            margin-left: 0;
        }

        /* Header */
        .header {
            background: hsl(var(--surface-primary));
            border-bottom: 1px solid hsl(var(--border-primary));
            padding: 1.5rem 2rem;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }

        .header-title-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .menu-toggle {
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: var(--radius-normal);
            color: hsl(var(--content-primary));
            display: none;
        }

        .menu-toggle:hover {
            background: hsl(var(--surface-secondary));
        }

        .page-title {
            font-size: var(--text-heading-2);
            font-weight: 600;
            color: hsl(var(--content-primary));
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .search-box {
            position: relative;
            width: 300px;
        }

        .search-input {
            width: 100%;
            padding: 0.625rem 1rem;
            border: 1px solid hsl(var(--border-primary));
            border-radius: var(--radius-normal);
            background: hsl(var(--surface-primary));
            font-size: var(--text-body);
            transition: all var(--timing-fast) ease-out;
        }

        .search-input:focus {
            outline: none;
            border-color: hsl(var(--action-primary));
            box-shadow: var(--shadow-focus);
        }

        .search-input:focus-visible {
            box-shadow: var(--shadow-focus);
        }

        .search-input:focus:not(:focus-visible) {
            box-shadow: none;
        }

        /* Buttons */
        .btn {
            padding: var(--space-component-padding);
            border-radius: var(--radius-normal);
            font-weight: 500;
            font-size: var(--text-body);
            cursor: pointer;
            transition: all var(--timing-fast) ease-out;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: var(--space-component-gap);
        }

        .btn-primary {
            background: hsl(var(--action-primary));
            color: white;
        }

        .btn-primary:hover:not(:disabled) {
            background: hsl(var(--action-primary-hover));
            transform: translateY(-1px);
            box-shadow: var(--shadow-pronounced);
        }

        .btn-primary:active:not(:disabled) {
            transform: translateY(0) scale(0.98);
            transition: transform var(--timing-instant) ease-out;
        }

        .btn-primary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .btn-secondary {
            background: hsl(var(--surface-secondary));
            color: hsl(var(--content-primary));
            border: 1px solid hsl(var(--border-primary));
        }

        .btn-secondary:hover:not(:disabled) {
            background: hsl(var(--surface-tertiary));
        }

        .btn-secondary:active:not(:disabled) {
            transform: scale(0.98);
            transition: transform var(--timing-instant) ease-out;
        }

        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        /* Content Area */
        .content {
            padding: 2rem;
            overflow-x: hidden;
        }

        .content-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2rem;
        }

        .content-title {
            font-size: var(--text-heading-1);
            font-weight: 600;
        }

        .content-actions {
            display: flex;
            gap: 1rem;
        }

        /* Filters Bar */
        .filters-bar {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: hsl(var(--surface-secondary));
            border-radius: var(--radius-normal);
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .filter-select {
            padding: 0.5rem 1rem;
            border: 1px solid hsl(var(--border-primary));
            border-radius: var(--radius-normal);
            background: hsl(var(--surface-primary));
            font-size: var(--text-body-small);
            min-width: 150px;
        }

        /* Table */
        .table-container {
            background: hsl(var(--surface-primary));
            border: 1px solid hsl(var(--border-primary));
            border-radius: var(--radius-normal);
            overflow-x: auto;
            box-shadow: var(--shadow-normal);
        }

        .products-table {
            width: 100%;
            min-width: 1600px;
            border-collapse: collapse;
        }

        .products-table th,
        .products-table td {
            padding: 1.25rem 1rem;
            text-align: left;
            border-bottom: 1px solid hsl(var(--border-primary));
            vertical-align: top;
        }

        .products-table th {
            background: hsl(var(--surface-secondary));
            font-weight: 600;
            font-size: var(--text-caption);
            color: hsl(var(--content-secondary));
            text-transform: uppercase;
            letter-spacing: 0.05em;
            position: sticky;
            top: 0;
            z-index: 10;
        }

        .products-table tbody tr {
            transition: background-color var(--timing-fast) ease-out;
        }

        .products-table tbody tr:hover {
            background: hsl(var(--surface-secondary) / 0.5);
        }

        .products-table tbody tr:hover td:nth-child(1),
        .products-table tbody tr:hover td:nth-child(2) {
            background: hsl(var(--surface-secondary) / 0.5);
        }

        .products-table tr:last-child td {
            border-bottom: none;
        }

        /* Column Widths */
        .products-table th:nth-child(1),
        .products-table td:nth-child(1) {
            width: 60px; /* Checkbox - fixed width for sticky */
            min-width: 60px;
            position: sticky;
            left: 0;
            background: hsl(var(--surface-primary));
            z-index: 20;
        }

        .products-table th:nth-child(1) {
            background: hsl(var(--surface-secondary));
            z-index: 30;
        }

        .products-table th:nth-child(2),
        .products-table td:nth-child(2) {
            width: 400px; /* Product - fixed width for sticky */
            min-width: 400px;
            max-width: 400px;
            position: sticky;
            left: 60px;
            background: hsl(var(--surface-primary));
            z-index: 20;
        }

        .products-table th:nth-child(2) {
            background: hsl(var(--surface-secondary));
            z-index: 30;
        }

        /* Ensure sticky columns have shadow on scroll */
        .products-table th:nth-child(2)::after,
        .products-table td:nth-child(2)::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 1px;
            background: hsl(var(--border-primary));
            box-shadow: 2px 0 4px rgba(0, 0, 0, 0.05);
        }

        .products-table th:nth-child(3),
        .products-table td:nth-child(3) {
            width: 7%; /* SKU */
        }

        .products-table th:nth-child(4),
        .products-table td:nth-child(4) {
            width: 8%; /* Vendor */
        }

        .products-table th:nth-child(5),
        .products-table td:nth-child(5) {
            width: 7%; /* Price */
        }

        .products-table th:nth-child(6),
        .products-table td:nth-child(6) {
            width: 7%; /* Status */
        }

        .products-table th:nth-child(7),
        .products-table td:nth-child(7) {
            width: 12%; /* Categories */
        }

        .products-table th:nth-child(8),
        .products-table td:nth-child(8) {
            width: 8%; /* Last Modified */
        }

        .products-table th:nth-child(9),
        .products-table td:nth-child(9) {
            width: 8%; /* Author */
        }

        .products-table th:nth-child(10),
        .products-table td:nth-child(10) {
            width: 5%; /* Actions */
        }

        /* Product Cell */
        .product-cell {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }

        .product-image {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            background: hsl(var(--surface-tertiary));
            border: 1px solid hsl(var(--border-primary));
            border-radius: var(--radius-normal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .product-info {
            flex: 1;
            min-width: 0;
            max-width: 100%;
            overflow: visible;
        }

        .product-info h3 {
            font-size: var(--text-body);
            font-weight: 600;
            margin: 0 0 0.375rem 0;
            color: hsl(var(--content-primary));
            line-height: 1.4;
            word-wrap: break-word;
            overflow-wrap: break-word;
            white-space: normal;
        }

        .product-info p {
            font-size: var(--text-body-small);
            color: hsl(var(--content-secondary));
            line-height: 1.5;
            margin: 0;
            word-wrap: break-word;
            overflow-wrap: break-word;
            white-space: normal;
        }

        /* Status Badge */
        .status-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.375rem 0.875rem;
            border-radius: 100px;
            font-size: var(--text-caption);
            font-weight: 600;
            text-transform: capitalize;
            white-space: nowrap;
        }

        .status-pending {
            background: hsl(var(--feedback-warning) / 0.1);
            color: hsl(var(--feedback-warning));
        }

        .status-active {
            background: hsl(var(--feedback-success) / 0.1);
            color: hsl(var(--feedback-success));
        }

        /* Category Tags */
        .category-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.625rem;
            background: hsl(var(--action-primary) / 0.1);
            color: hsl(var(--action-primary));
            border-radius: var(--radius-small);
            font-size: var(--text-caption);
            font-weight: 500;
            margin-right: 0.375rem;
            margin-bottom: 0.25rem;
            text-decoration: none;
            white-space: nowrap;
            transition: all var(--timing-fast) ease-out;
        }

        .category-tag:hover {
            background: hsl(var(--action-primary) / 0.2);
        }

        .category-tag:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .category-tag:active {
            transform: scale(0.98);
        }

        /* Author */
        .author-cell {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: var(--text-body-small);
        }

        .author-avatar {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            background: hsl(var(--action-primary));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: var(--text-caption);
        }

        .author-cell span {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* Actions */
        .actions-cell {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-icon {
            padding: 0.5rem;
            background: transparent;
            border: 1px solid hsl(var(--border-primary));
            border-radius: var(--radius-normal);
            cursor: pointer;
            transition: all var(--timing-fast) ease-out;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 32px;
            min-height: 32px;
            color: hsl(var(--content-primary));
        }

        .btn-icon:hover:not(:disabled) {
            background: hsl(var(--surface-secondary));
            border-color: hsl(var(--action-primary));
        }

        .btn-icon:active:not(:disabled) {
            transform: scale(0.95);
            transition: transform var(--timing-instant) ease-out;
        }

        .btn-icon:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .btn-icon svg {
            width: 16px;
            height: 16px;
        }

        .btn-destructive {
            color: hsl(var(--feedback-error));
        }

        .btn-destructive:hover:not(:disabled) {
            background: hsl(var(--feedback-error) / 0.1);
            border-color: hsl(var(--feedback-error));
        }

        .btn-destructive:focus-visible {
            box-shadow: 0 0 0 2px hsl(var(--surface-primary)), 0 0 0 4px hsl(var(--feedback-error));
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 0;
            margin-top: 2rem;
        }

        .pagination-info {
            color: hsl(var(--content-secondary));
            font-size: var(--text-body-small);
        }

        .pagination-controls {
            display: flex;
            gap: 0.5rem;
        }

        .page-btn {
            padding: 0.5rem 0.75rem;
            min-width: 36px;
            min-height: 36px;
            border: 1px solid hsl(var(--border-primary));
            background: hsl(var(--surface-primary));
            color: hsl(var(--content-primary));
            border-radius: var(--radius-normal);
            cursor: pointer;
            font-size: var(--text-body-small);
            transition: all var(--timing-fast) ease-out;
        }

        .page-btn:hover:not(:disabled) {
            background: hsl(var(--surface-secondary));
        }

        .page-btn:active:not(:disabled) {
            transform: scale(0.95);
            transition: transform var(--timing-instant) ease-out;
        }

        .page-btn:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .page-btn.active {
            background: hsl(var(--action-primary));
            color: white;
            border-color: hsl(var(--action-primary));
        }

        /* Checkboxes */
        input[type="checkbox"] {
            width: 16px;
            height: 16px;
            cursor: pointer;
            accent-color: hsl(var(--action-primary));
        }

        input[type="checkbox"]:focus-visible {
            outline: 2px solid hsl(var(--border-focus));
            outline-offset: 2px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .menu-toggle {
                display: block;
            }

            .sidebar {
                transform: translateX(-100%);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .search-box {
                width: 200px;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
            }

            .header-actions {
                flex-direction: column;
            }

            .search-box {
                width: 100%;
            }

            .content-header {
                flex-direction: column;
                align-items: start;
                gap: 1rem;
            }

            .filters-bar {
                flex-direction: column;
                align-items: stretch;
            }

            .filter-select {
                width: 100%;
            }

            .table-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .products-table {
                min-width: 1600px;
            }

            .pagination {
                flex-direction: column;
                gap: 1rem;
                align-items: stretch;
            }

            .pagination-controls {
                justify-content: center;
            }

            /* Increase touch targets on mobile */
            .btn-icon {
                min-width: 44px;
                min-height: 44px;
                padding: 0.75rem;
            }

            .page-btn {
                min-width: 44px;
                min-height: 44px;
                padding: 0.75rem 1rem;
            }

            input[type="checkbox"] {
                width: 20px;
                height: 20px;
            }
        }