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

        body {
            background: #f5f5f5;
            padding: 20px;
        }

        .header {
            background: white;
            padding: 15px 30px;
            border-radius: 15px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #0066cc;
        }

        .cart-btn {
            background: #0066cc;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 16px;
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .cart-btn:hover {
            background: #0052a3;
        }

        .cart-count {
            background: red;
            border-radius: 50%;
            padding: 2px 8px;
            font-size: 14px;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }

        .product-card {
            background: white;
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            transition: transform 0.2s;
        }

        .product-card:hover {
            transform: translateY(-5px);
        }

        .product-img {
            width: 100%;
            height: 200px;
            object-fit: contain;
            background: #fafafa;
            border-radius: 10px;
            margin-bottom: 15px;
        }

        .product-title {
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 8px;
        }

        .price {
            font-size: 22px;
            font-weight: bold;
            color: #0066cc;
            margin: 10px 0;
        }

        .specs-short {
            font-size: 13px;
            color: #666;
            margin: 10px 0;
            padding: 8px;
            background: #f0f0f0;
            border-radius: 8px;
        }

        .rating {
            color: #ffaa00;
            margin: 8px 0;
            font-size: 14px;
        }

        button {
            background: #0066cc;
            color: white;
            border: none;
            padding: 10px;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            font-size: 14px;
            margin-top: 8px;
        }

        button:hover {
            background: #0052a3;
        }

        .details-btn {
            background: #28a745;
        }

        .details-btn:hover {
            background: #218838;
        }

        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            justify-content: center;
            align-items: center;
            z-index: 1000;
        }

        .modal-content {
            background: white;
            max-width: 500px;
            width: 90%;
            border-radius: 20px;
            padding: 25px;
            max-height: 80vh;
            overflow-y: auto;
        }

        .close {
            float: right;
            font-size: 28px;
            cursor: pointer;
        }

        .specs-full {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 10px;
            margin: 15px 0;
        }

        .specs-full p {
            margin: 8px 0;
        }

        .reviews-list {
            margin: 15px 0;
        }

        .review {
            background: #f1f1f1;
            padding: 10px;
            border-radius: 8px;
            margin-bottom: 10px;
        }

        .add-review {
            margin-top: 15px;
        }

        .add-review input, .add-review textarea, .add-review select {
            width: 100%;
            padding: 8px;
            margin: 5px 0;
            border: 1px solid #ddd;
            border-radius: 8px;
        }

        .cart-sidebar {
            position: fixed;
            top: 0;
            right: -380px;
            width: 350px;
            height: 100%;
            background: white;
            box-shadow: -2px 0 10px rgba(0,0,0,0.2);
            z-index: 1100;
            transition: 0.3s;
            padding: 20px;
            display: flex;
            flex-direction: column;
        }

        .cart-sidebar.open {
            right: 0;
        }

        .cart-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #ddd;
            padding-bottom: 10px;
        }

        .cart-items {
            flex: 1;
            overflow-y: auto;
            margin: 15px 0;
        }

        .cart-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #eee;
            padding: 10px 0;
        }

        .cart-total {
            font-size: 20px;
            font-weight: bold;
            text-align: right;
            border-top: 1px solid #ddd;
            padding-top: 10px;
        }

        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.3);
            z-index: 1050;
        }

        .overlay.active {
            display: block;
        }

        footer {
            text-align: center;
            padding: 20px;
            color: #666;
            margin-top: 20px;
        }