:root {
    --detail-body-bg: #FFFFFF;
    --detail-section-bg: #FFFFFF;
    --main-image-bg: #FFFFFF;
    --thumb-border-default: #000000;
    --thumb-border-active: #787878;
    --detail-category-color: #FF0000;
    --detail-title-color: #000000;
    --detail-price-color: #FF0000;
    --detail-desc-color: #696969;
    --detail-desc-border: #000000;
    --selection-label-color: #000000;
    --color-btn-border: #707070;
    --color-btn-outline: #000000;
    --color-btn-active-outline: #000000;
    --btn-buy-bg: #000000;
    --btn-buy-color: #FFFFFF;
    --btn-buy-hover-bg: #545454;
}

        /* --- RESET & BASE --- */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Montserrat', sans-serif; background-color: var(--detail-body-bg); }

        /* --- PRODUCT DETAIL SECTION (FIXED GAPS) --- */
        .product-details {
            padding: 100px 5% 40px; /* Navbar ke niche space kam kar di */
            background-color: var(--detail-section-bg);
        }

        .detail-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px; /* Dai-Bai gap kam kiya */
            align-items: start;
        }

        /* Gallery Styling */
        .product-gallery {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .main-image {
            width: 100%;
            height: 520px; /* Height thodi kam ki taake screen par fit aaye */
            background-color: var(--main-image-bg);
            border-radius: 20px;
            overflow: hidden;
        }

        .main-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: 0.5s ease;
        }

        .thumbnail-row {
            display: flex;
            gap: 12px;
        }

        .thumb {
            width: 85px;
            height: 85px;
            object-fit: cover;
            border-radius: 12px;
            cursor: pointer;
            border: 2px solid var(--thumb-border-default);
            outline: 1px solid var(--color-btn-outline);
            transition: 0.3s;
        }

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

        /* Info Box Styling */
        .detail-category {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--detail-category-color);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }

        .detail-title {
            font-family: 'Playfair Display', serif;
            font-size: 36px;
            color: var(--detail-title-color);
            margin-bottom: 12px;
            line-height: 1.2;
        }

        .detail-price {
            font-size: 24px;
            color: var(--detail-price-color);
            font-weight: 600;
            margin-bottom: 20px;
        }

        .detail-description {
            font-size: 14px;
            line-height: 1.7;
            color: var(--detail-desc-color);
            margin-bottom: 25px;
            border-top: 1px solid var(--detail-desc-border);
            padding-top: 20px;
        }

        /* Color Selection */
        .selection-group {
            margin-bottom: 25px;
        }

        .selection-group label {
            display: block;
            font-size: 12px;
            text-transform: uppercase;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 1px;
            color: var(--selection-label-color);
        }

        .color-options {
            display: flex;
            gap: 10px;
        }

        .color-btn {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            cursor: pointer;
            border: 2px solid var(--color-btn-border);
            outline: 1px solid var(--color-btn-outline);
            transition: 0.3s;
        }

        .color-btn.active {
            outline: 2px solid var(--color-btn-active-outline);
        }

        /* Buttons */
        .action-buttons {
            display: flex;
            gap: 12px;
            margin-bottom: 30px;
        }

        .btn-buy-now {
            flex: 1;
            text-align: center;
            padding: 16px;
            text-decoration: none;
            text-transform: uppercase;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            border-radius: 50px;
            transition: 0.4s;
        }

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

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

        /* --- MOBILE RESPONSIVE --- */
        @media (max-width: 992px) {
            .detail-container { grid-template-columns: 1fr; gap: 30px; }
            .product-details { padding: 90px 5% 30px; }
            .main-image { height: 400px; }
        }

        @media (max-width: 600px) {
            .detail-title { font-size: 28px; }
            .action-buttons { flex-direction: column; }
            .thumb { width: 70px; height: 70px; }
        }