:root {
            --primary-color: #0c2b49;
            --secondary-color: #f38654;
            --text-color: #333;
            --light-gray: #f5f5f5;
            --white: #ffffff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: var(--light-gray);
            color: var(--text-color);
            line-height: 1.6;
            padding: 0;
            margin: 0;
        }

        .product-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 1rem;
            background: var(--white);

            border-radius: 8px;
        }

        .product-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

        .product-gallery {
            flex: 1;
            min-width: 300px;
        }

        .main-image {
            width: 100%;
            height: 450px;
            margin-bottom: 1rem;
            overflow: hidden;
            background-color: var(--light-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }

        .main-image img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            transition: var(--transition);
        }

        .thumbnail-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .thumbnail {
            height: 100px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            background-color: var(--light-gray);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .thumbnail img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }

        .thumbnail:hover, .thumbnail.active {
            border-color: var(--secondary-color);
        }

        .product-details {
            flex: 1;
            min-width: 300px;
            padding: 0 1rem;
        }

        .product-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }

        .product-brand {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 1rem;
            display: block;
        }

        .product-price {
            font-size: 1.75rem;
            color: var(--secondary-color);
            margin: 1.5rem 0;
            font-weight: bold;
        }

        .product-description {
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .product-options {
            margin-bottom: 2rem;
        }

        .option-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            display: block;
        }

        .variant-buttons {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }

        .variant-btn {
            padding: 0.5rem 1rem;
            border: 1px solid #ddd;
            background: var(--white);
            cursor: pointer;
            border-radius: 4px;
            transition: var(--transition);
        }

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

        .variant-btn.active {
            border-color: var(--secondary-color);
            background-color: rgba(231, 76, 60, 0.1);
        }

        .quantity-selector {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
        }

        .quantity-btn {
            width: 40px;
            height: 40px;
            background: var(--light-gray);
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .quantity-input {
            width: 60px;
            height: 40px;
            text-align: center;
            border: 1px solid #ddd;
            margin: 0 0.5rem;
        }

        .action-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .add-to-cart, .buy-now {
            padding: 0.8rem 2rem;
            border: none;
            font-weight: 600;
            cursor: pointer;
            border-radius: 4px;
            transition: var(--transition);
        }

        .add-to-cart {
            background-color: var(--primary-color);
            color: var(--white);
        }

        .buy-now {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        .add-to-cart:hover {
            background-color: #1a252f;
        }

        .buy-now:hover {
            background-color: #c0392b;
        }

        .product-meta {
            margin-top: 2rem;
            border-top: 1px solid #eee;
            padding-top: 1rem;
        }

        .meta-item {
            display: flex;
            margin-bottom: 0.5rem;
        }

        .meta-label {
            font-weight: 600;
            min-width: 120px;
        }

        @media (max-width: 768px) {
            .product-wrapper {
                flex-direction: column;
            }

            .product-details {
                padding: 0;
            }

            .main-image {
                height: 350px;
            }

            .action-buttons {
                flex-direction: column;
            }

            .add-to-cart, .buy-now {
                width: 100%;
            }
        }