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

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        /* Navigation */
        .navbar {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            padding: 0 20px;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
        }

        .logo h2 {
            color: #1e3a8a;
            font-size: 1.5rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: #1e3a8a;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #fa8bfa;
        }

        .cart-icon {
            position: relative;
            background: #7a85a3;
            color: white;
            padding: 10px 15px;
            border-radius: 25px;
            text-decoration: none;
            transition: background 0.3s;
        }

        .cart-icon:hover {
            background: #fa8b3c;
        }

        .cart-count {
            position: absolute;
            top: -5px;
            right: -5px;
            background: #ef4444;
            color: white;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }

        .mobile-menu span {
            width: 25px;
            height: 3px;
            background: #1e3a8a;
            margin: 3px 0;
            transition: 0.3s;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, #e0f2fe 0%, #b3e5fc 100%);
            padding: 120px 20px 60px;
            text-align: center;
        }

        .page-header h1 {
            font-size: 2.5rem;
            color: #1e3a8a;
            margin-bottom: 1rem;
        }

        .page-header p {
            font-size: 1.1rem;
            color: #64748b;
        }

        /* Search and Filter */
        .search-filter {
            background: white;
            padding: 20px;
            margin: 20px auto;
            max-width: 1200px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }

        .search-box {
            flex: 1;
            min-width: 250px;
        }

        .search-box input {
            width: 100%;
            padding: 12px;
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            font-size: 1rem;
        }

        .filter-select {
            min-width: 150px;
        }

        .filter-select select {
            width: 100%;
            padding: 12px;
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            font-size: 1rem;
            background: white;
        }

        /* Products Grid */
        .products-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }

        .product-image {
            width: 100%;
            height: 200px;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: #64748b;
        }

        .product-info {
            padding: 20px;
        }

        .product-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1e3a8a;
            margin-bottom: 10px;
        }

        .product-price {
            font-size: 1.3rem;
            font-weight: 700;
            color: #22c55e;
            margin-bottom: 10px;
        }

        .product-stock {
            font-size: 0.9rem;
            margin-bottom: 15px;
            padding: 5px 10px;
            border-radius: 15px;
            display: inline-block;
        }

        .in-stock {
            background: #dcfce7;
            color: #166534;
        }

        .out-of-stock {
            background: #fee2e2;
            color: #dc2626;
        }

        .low-stock {
            background: #fef3c7;
            color: #d97706;
        }

        .add-to-cart {
            width: 100%;
            background: #1e3a8a;
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s;
        }

        .add-to-cart:hover:not(:disabled) {
            background: #f97316;
        }

        .add-to-cart:disabled {
            background: #94a3b8;
            cursor: not-allowed;
        }

        .quantity-controls {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .quantity-btn {
            background: #e2e8f0;
            border: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .quantity-btn:hover {
            background: #cbd5e1;
        }

        .quantity-input {
            width: 50px;
            text-align: center;
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            padding: 5px;
        }

        /* Loading and Empty States */
        .loading {
            text-align: center;
            padding: 40px;
            color: #64748b;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #64748b;
        }

        .empty-state h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            }

            .nav-links.active {
                display: flex;
            }

            .mobile-menu {
                display: flex;
            }

            .page-header h1 {
                font-size: 2rem;
            }

            .search-filter {
                flex-direction: column;
                align-items: stretch;
            }

            .search-box,
            .filter-select {
                min-width: 100%;
            }

            .products-grid {
                grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            }
        }

        @media (max-width: 480px) {
            .products-grid {
                grid-template-columns: 1fr;
            }
        }