/* --- نفس تنسيقات التصميم السابق --- */
        :root {
            --bg-dark: #050505;
            --bg-card: #121212;
            --gold-main: #D4AF37;
            --gold-gradient: linear-gradient(135deg, #D4AF37 0%, #AA8C2C 100%);
            /* لون واتساب الأخضر لتمييز زر الشراء */
            --whatsapp-green: #25D366; 
            --text-white: #ffffff;
            --text-gray: #a0a0a0;
            --border-light: rgba(255, 255, 255, 0.1);
            --safe-area-bottom: env(safe-area-inset-bottom);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        body {
            font-family: 'Cairo', sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            padding-bottom: 100px;
        }

        /* --- Header --- */
        .product-header {
            position: fixed;
            top: 0; width: 100%; padding: 15px 20px; display: flex;
            justify-content: space-between; align-items: center; z-index: 100;
            background: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent);
        }
        .icon-btn {
            width: 40px; height: 40px; background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px); border-radius: 50%; display: flex;
            align-items: center; justify-content: center; color: white;
            text-decoration: none; font-size: 1.2rem; border: 1px solid rgba(255,255,255,0.05);
            transition: 0.3s;
        }

        /* --- Gallery --- */
        .image-gallery { position: relative; width: 100%; height: 65vh; background: #222; overflow: hidden; }
        .slider-wrapper { display: flex; width: 100%; height: 100%; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
        .slider-wrapper::-webkit-scrollbar { display: none; }
        .slide { flex: 0 0 100%; width: 100%; height: 100%; scroll-snap-align: center; }
        .slide img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
        .dots-container { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 10; }
        .dot { width: 8px; height: 8px; background: rgba(255,255,255,0.3); border-radius: 50%; transition: 0.3s; }
        .dot.active { background: var(--gold-main); width: 20px; border-radius: 10px; }

        /* --- Sheet --- */
        .product-details-sheet {
            margin-top: -30px; background: var(--bg-dark); border-radius: 30px 30px 0 0;
            padding: 30px 20px; position: relative; z-index: 20;
            box-shadow: 0 -10px 30px rgba(0,0,0,0.5); border-top: 1px solid var(--border-light);
        }
        .drag-indicator { width: 50px; height: 4px; background: #333; border-radius: 10px; margin: 0 auto 20px; }
        .title-row { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
        .product-title { font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
        .product-price { color: var(--gold-main); font-size: 1.4rem; font-weight: 700; }
        .badge { display: inline-block; background: rgba(212, 175, 55, 0.15); color: var(--gold-main); padding: 4px 10px; border-radius: 5px; font-size: 0.8rem; margin-bottom: 15px; }
        .rating { color: #FFD700; font-size: 0.9rem; margin-bottom: 20px; display: flex; align-items: center; gap: 5px; }
        .rating span { color: var(--text-gray); font-size: 0.8rem; }

        /* --- Selectors --- */
        .selector-section { margin-bottom: 25px; }
        .selector-title { font-size: 1rem; margin-bottom: 10px; display: flex; justify-content: space-between; }
        .size-guide-btn { color: var(--gold-main); font-size: 0.85rem; cursor: pointer; text-decoration: underline; }
        .colors-container { display: ruby }
        .color-option { width: 35px; height: 35px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; position: relative; margin-right: 6px; }
        .color-option.active { border-color: var(--gold-main); transform: scale(1.1); }
        .c-navy { background: #001f3f; } .c-gray { background: #555; } .c-black { background: #000; border: 1px solid #333; } .c-burgundy { background: #800020; }
        .sizes-container { display: flex; gap: 10px; flex-wrap: wrap; }
        .size-option { width: 50px; height: 40px; border: 1px solid var(--border-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.3s; font-weight: 600; color: var(--text-gray); }
        .size-option.active { background: var(--gold-main); color: #000; border-color: var(--gold-main); box-shadow: 0 0 10px rgba(212, 175, 55, 0.3); }

        .description p { line-height: 1.6; color: var(--text-gray); font-size: 0.95rem; margin-bottom: 20px; }
        .specs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border-light); }
        .spec-item { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: #ccc; }
        .spec-item i { color: var(--gold-main); }

        /* --- Sticky Footer (Modified for WhatsApp) --- */
        .sticky-footer {
            position: fixed; bottom: 0; left: 0; width: 100%;
            background: rgba(18, 18, 18, 0.95); backdrop-filter: blur(10px);
            padding: 15px 20px calc(15px + var(--safe-area-bottom));
            display: flex; align-items: center; gap: 20px;
            border-top: 1px solid var(--border-light); z-index: 90;
        }

        .quantity-control { display: flex; align-items: center; background: #222; border-radius: 25px; padding: 5px; border: 1px solid #333; }
        .qty-btn { width: 35px; height: 35px; border: none; background: transparent; color: white; font-size: 1.2rem; cursor: pointer; }
        .qty-display { width: 30px; text-align: center; font-weight: 600; }

        .buy-whatsapp-btn {
            flex: 1;
            /* استخدام لون واتساب أو الذهبي حسب الرغبة - سأستخدم الذهبي للحفاظ على الهوية مع أيقونة واتساب */
            background: var(--gold-gradient); 
            border: none; height: 50px; border-radius: 25px;
            font-weight: 700; font-size: 1rem; color: #000;
            display: flex; align-items: center; justify-content: center; gap: 10px;
            box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3); cursor: pointer; transition: 0.2s;
        }
        .buy-whatsapp-btn:active { transform: scale(0.97); }
        .buy-whatsapp-btn i { font-size: 1.2rem; }

        /* --- Modal --- */
        .modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); z-index: 200; justify-content: center; align-items: center; padding: 20px; }
        .modal-content { background: #1a1a1a; padding: 20px; border-radius: 15px; width: 100%; max-width: 400px; position: relative; border: 1px solid var(--gold-main); }
        .close-modal { position: absolute; top: 10px; left: 15px; font-size: 1.5rem; color: #fff; cursor: pointer; }
        .size-img { width: 100%; border-radius: 10px; margin-top: 10px; }