:root {
            --primary: #10b981;
            /* Emerald 500 */
            --primary-light: #d1fae5;
            --primary-dark: #059669;
            --secondary: #3b82f6;
            --sidebar-bg: #1e293b;
            /* Slate 800 */
            --sidebar-hover: #334155;
            --sidebar-text: #cbd5e1;
            --sidebar-text-active: #ffffff;
            --bg-color: #f1f5f9;
            /* Slate 100 */
            --surface: #ffffff;
            --text-main: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --danger: #ef4444;
            --warning: #f59e0b;

            --success: #10b981;
            --radius-md: 0.5rem;
            --radius-lg: 1rem;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            display: flex;
            height: 100vh;
            overflow: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* Sidebar */
        .sidebar {
            width: 260px;
            background-color: var(--sidebar-bg);
            color: var(--sidebar-text);
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
            z-index: 10;
        }

        .sidebar-header {
            padding: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .sidebar-header .logo {
            width: 2.5rem;
            height: 2.5rem;
            background: linear-gradient(135deg, var(--primary), #34d399);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
            box-shadow: 0 4px 6px rgba(16, 185, 129, 0.3);
        }

        .sidebar-header .title {
            font-size: 1.125rem;
            font-weight: 700;
            color: white;
            letter-spacing: 0.5px;
        }

        .nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 1.5rem 1rem;
        }

        .nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .nav-menu::-webkit-scrollbar-thumb {
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }

        .nav-item {
            list-style: none;
            margin-bottom: 0.5rem;
        }

        .nav-link {
            display: flex;
            align-items: center;
            padding: 0.75rem 1rem;
            color: var(--sidebar-text);
            text-decoration: none;
            border-radius: var(--radius-md);
            transition: all 0.2s ease;
            font-size: 0.95rem;
            font-weight: 500;
        }

        .nav-link i {
            width: 1.5rem;
            font-size: 1.1rem;
            margin-right: 0.75rem;
            text-align: center;
            opacity: 0.8;
            transition: opacity 0.2s;
        }

        .nav-link:hover {
            background-color: var(--sidebar-hover);
            color: var(--sidebar-text-active);
        }

        .nav-link:hover i {
            opacity: 1;
            color: var(--primary);
        }

        .nav-link.active {
            background-color: rgba(16, 185, 129, 0.15);
            color: var(--primary);
            border-left: 3px solid var(--primary);
        }

        .nav-link.active i {
            color: var(--primary);
            opacity: 1;
        }

        .nav-label {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: #94a3b8;
            margin: 1.5rem 0 0.75rem 1rem;
            font-weight: 600;
        }

        /* Sub-menu */
        .sub-menu {
            padding-left: 2.75rem;
            margin-top: 0.25rem;
            display: none;
        }

        .has-submenu.active+.sub-menu {
            display: block;
        }

        .sub-link {
            display: block;
            padding: 0.5rem 0;
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .sub-link:hover,
        .sub-link.active {
            color: white;
        }

        /* Main Content */
        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }

        /* Topbar */
        .topbar {
            height: 70px;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 2rem;
            box-shadow: var(--shadow-sm);
            z-index: 5;
        }

        .search-bar {
            display: flex;
            align-items: center;
            background-color: var(--bg-color);
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            width: 350px;
            border: 1px solid transparent;
            transition: border-color 0.2s;
        }

        .search-bar:focus-within {
            border-color: var(--primary);
            background-color: white;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        .search-bar input {
            border: none;
            background: transparent;
            outline: none;
            padding-left: 0.75rem;
            width: 100%;
            font-size: 0.95rem;
            font-family: 'Inter', sans-serif;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .icon-btn {
            position: relative;
            background: none;
            border: none;
            font-size: 1.25rem;
            color: var(--text-muted);
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .icon-btn:hover {
            background-color: var(--bg-color);
            color: var(--text-main);
        }

        .badge {
            position: absolute;
            top: 2px;
            right: 2px;
            background-color: var(--danger);
            color: white;
            font-size: 0.65rem;
            font-weight: bold;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--surface);
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-md);
            transition: background-color 0.2s;
        }

        .user-profile:hover {
            background-color: var(--bg-color);
        }

        .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
        }

        .user-info {
            display: flex;
            flex-direction: column;
        }

        .user-name {
            font-size: 0.9rem;
            font-weight: 600;
        }

        .user-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Page Content */
        .page-content {
            padding: 2rem;
            overflow-y: auto;
            flex: 1;
        }

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

        .page-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        .breadcrumb span {
            margin: 0 0.5rem;
        }

        /* Action Buttons */
        .actions-group {
            display: flex;
            gap: 0.75rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.25rem;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            border: 1px solid transparent;
            font-family: inherit;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
            box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 6px rgba(16, 185, 129, 0.3);
        }

        .btn-outline {
            background-color: transparent;
            border-color: var(--border-color);
            color: var(--text-main);
        }

        .btn-outline:hover {
            background-color: var(--bg-color);
            border-color: #cbd5e1;
        }

        /* Filter Section */
        .filter-section {
            background-color: var(--surface);
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            margin-bottom: 1.5rem;
            display: flex;
            gap: 1rem;
            align-items: center;
            border: 1px solid var(--border-color);
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .filter-group select,
        .filter-group input {
            padding: 0.6rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            outline: none;
            font-family: inherit;
            color: var(--text-main);
            background-color: var(--bg-color);
            transition: border-color 0.2s;
        }

        .filter-group select:focus,
        .filter-group input:focus {
            border-color: var(--primary);
        }

        /* Data Table */
        .table-container {
            background-color: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        th {
            background-color: #f8fafc;
            padding: 1rem 1.5rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border-bottom: 1px solid var(--border-color);
        }

        td {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
            vertical-align: middle;
        }

        tbody tr {
            transition: background-color 0.2s;
        }

        tbody tr:hover {
            background-color: #f8fafc;
        }

        tbody tr:last-child td {
            border-bottom: none;
        }

        .product-cell {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .product-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            object-fit: cover;
            background-color: var(--bg-color);
            border: 1px solid var(--border-color);
        }

        .product-info {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .product-name {
            font-weight: 600;
            color: var(--text-main);
        }

        .product-sku {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.75rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .status-success {
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--success);
        }

        .status-warning {
            background-color: rgba(245, 158, 11, 0.1);
            color: var(--warning);
        }

        .status-danger {
            background-color: rgba(239, 68, 68, 0.1);
            color: var(--danger);
        }

        .table-actions {
            display: flex;
            gap: 0.5rem;
        }

        .action-btn {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background-color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            cursor: pointer;
            transition: all 0.2s;
        }

        .action-btn:hover {
            background-color: var(--bg-color);
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .action-btn.delete:hover {
            color: var(--danger);
            border-color: rgba(239, 68, 68, 0.3);
            background-color: rgba(239, 68, 68, 0.05);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            border-top: 1px solid var(--border-color);
            background-color: white;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }

        .page-info {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .page-numbers {
            display: flex;
            gap: 0.35rem;
        }

        .page-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
            background-color: white;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.2s;
        }

        .page-btn:hover:not(:disabled) {
            background-color: var(--bg-color);
        }

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

        .page-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            background-color: var(--bg-color);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                position: absolute;
                transform: translateX(-100%);
            }

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

            .menu-toggle {
                display: block !important;
            }
        }

        .menu-toggle {
            display: none;
            font-size: 1.25rem;
            background: none;
            border: none;
            color: var(--text-main);
            cursor: pointer;
            margin-right: 1rem;
        }