:root {
            /* Colors - Light Mode */
            --primary: #ee4d2d;
            --primary-hover: #d73d1f;
            --secondary: #ff9800;
            --bg-color: #f4f6f9;
            --sidebar-bg: #ffffff;
            --card-bg: #ffffff;
            --text-main: #333333;
            --text-muted: #6c757d;
            --border-color: #e9ecef;
            --success: #10b981;
            --danger: #ef4444;
            --warning: #f59e0b;
            --info: #3b82f6;
            
            --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);
            --radius-md: 8px;
            --radius-lg: 12px;
            
            --transition: all 0.3s ease;
        }

        /* Dark Mode Variables */
        [data-theme="dark"] {
            --bg-color: #111827;
            --sidebar-bg: #1f2937;
            --card-bg: #1f2937;
            --text-main: #f9fafb;
            --text-muted: #9ca3af;
            --border-color: #374151;
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            transition: var(--transition);
            overflow-x: hidden;
        }

        /* Access Denied Overlay */
        #access-denied {
            display: none;
            position: fixed;
            inset: 0;
            background: var(--bg-color);
            z-index: 9999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        #access-denied h1 {
            font-size: 24px;
            color: var(--danger);
            margin-bottom: 10px;
        }

        /* Layout Container */
        .admin-layout {
            display: flex;
            min-height: 100vh;
        }

        /* Sidebar */
        .sidebar {
            width: 260px;
            background-color: var(--sidebar-bg);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            z-index: 100;
        }

        .sidebar-header {
            height: 70px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            gap: 10px;
        }

        .sidebar-menu {
            flex: 1;
            padding: 20px 0;
            list-style: none;
        }

        .menu-item {
            padding: 12px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }

        .menu-item:hover, .menu-item.active {
            background-color: rgba(238, 77, 45, 0.1);
            color: var(--primary);
            border-right: 3px solid var(--primary);
        }

        .menu-item i {
            font-size: 18px;
            width: 24px;
            text-align: center;
        }

        /* Main Content */
        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        /* Topbar */
        .topbar {
            height: 70px;
            background-color: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
        }

        .breadcrumb {
            color: var(--text-muted);
            font-size: 14px;
        }

        .breadcrumb span.active {
            color: var(--text-main);
            font-weight: 600;
        }

        .topbar-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .theme-toggle {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .theme-toggle:hover {
            color: var(--primary);
        }

        .admin-profile {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

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

        /* Page Content */
        .content-wrapper {
            padding: 24px;
            overflow-y: auto;
        }

        .page-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .page-title {
            font-size: 24px;
            font-weight: 700;
        }

        /* Filters */
        .filters-container {
            background-color: var(--card-bg);
            padding: 16px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            border: 1px solid var(--border-color);
        }

        .filter-group {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }

        .btn {
            padding: 8px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background-color: var(--card-bg);
            color: var(--text-main);
            font-weight: 500;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

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

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
        }

        .date-input {
            padding: 8px 12px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background-color: var(--card-bg);
            color: var(--text-main);
            font-size: 14px;
            outline: none;
        }

        .date-input:focus {
            border-color: var(--primary);
        }

        /* Dashboard Cards */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-bottom: 24px;
        }

        .stat-card {
            background-color: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: transform 0.2s;
        }

        .stat-card:hover {
            transform: translateY(-4px);
        }

        .stat-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 600;
        }

        .stat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .icon-revenue { background: rgba(16, 185, 129, 0.1); color: var(--success); }
        .icon-orders { background: rgba(59, 130, 246, 0.1); color: var(--info); }
        .icon-aov { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
        .icon-products { background: rgba(238, 77, 45, 0.1); color: var(--primary); }

        .stat-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
        }

        .stat-comparison {
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .trend-up { color: var(--success); }
        .trend-down { color: var(--danger); }
        .trend-neutral { color: var(--text-muted); }

        /* Charts Section */
        .charts-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }

        .chart-card {
            background-color: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        .chart-header {
            margin-bottom: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .chart-title {
            font-size: 16px;
            font-weight: 600;
        }

        .chart-container {
            position: relative;
            height: 350px;
            width: 100%;
        }

        /* Table Section */
        .table-card {
            background-color: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        .table-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            padding: 8px 12px 8px 36px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background-color: var(--bg-color);
            color: var(--text-main);
            outline: none;
            width: 250px;
        }

        .search-box i {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
        }

        .table-responsive {
            overflow-x: auto;
        }

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

        th, td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            font-weight: 600;
            color: var(--text-muted);
            background-color: rgba(0,0,0,0.02);
            cursor: pointer;
            white-space: nowrap;
        }

        th:hover {
            background-color: rgba(0,0,0,0.05);
        }

        .sort-icon {
            margin-left: 4px;
            font-size: 12px;
        }

        tbody tr:hover {
            background-color: rgba(0,0,0,0.01);
        }

        [data-theme="dark"] tbody tr:hover {
            background-color: rgba(255,255,255,0.02);
        }

        .status-badge {
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            display: inline-block;
        }

        .status-completed { background: rgba(16, 185, 129, 0.15); color: var(--success); }
        .status-pending { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
        .status-cancelled { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

        .table-footer-row {
            font-weight: 700;
            background-color: rgba(238, 77, 45, 0.05);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .sidebar {
                position: fixed;
                left: -260px;
                height: 100vh;
            }
            .sidebar.show {
                left: 0;
            }
            .mobile-toggle {
                display: block !important;
            }
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
        }