.back-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: #374151;
            background: rgba(255,255,255,0.9);
            border: 1px solid rgba(209,230,255,0.7);
            padding: 8px 16px;
            border-radius: 99px;
            box-shadow: 0 1px 4px rgba(0,0,0,0.06);
            transition: all 0.2s;
            text-decoration: none;
        }
        .back-btn:hover {
            background: white;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .dark .back-btn {
            background: rgba(30,41,59,0.9);
            border-color: rgba(51,65,85,0.7);
            color: #e2e8f0;
        }

        /* Product image card */
        .product-img-card {
            background: rgba(255,255,255,0.85);
            border-radius: 20px;
            border: 1px solid rgba(200,228,255,0.6);
            box-shadow: 0 4px 24px rgba(59,130,246,0.08);
            overflow: hidden;
        }
        .dark .product-img-card {
            background: rgba(30,41,59,0.85);
            border-color: rgba(51,65,85,0.5);
        }

        /* Info card */
        .info-card {
            background: rgba(255,255,255,0.9);
            border-radius: 20px;
            border: 1px solid rgba(200,228,255,0.5);
            box-shadow: 0 4px 24px rgba(59,130,246,0.07);
            padding: 28px 32px;
        }
        .dark .info-card {
            background: rgba(30,41,59,0.9);
            border-color: rgba(51,65,85,0.5);
        }

        /* Badge */
        .badge-category {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 99px;
            background: #3b82f6;
            color: white;
        }
        .badge-sale {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 99px;
            background: #1e293b;
            color: white;
        }
        .dark .badge-sale {
            background: #334155;
        }

        .badge-views {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 99px;
            background: #8b5cf6;
            color: white;
        }
        .dark .badge-views {
            background: #7c3aed;
        }


             .badge-share {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 99px;
            background: #bfda25;
            color: white;
        }
        .badge-share:hover {
            background: #a3b635;
            color: white;
            text-decoration: none;
        }
        
        .dark .badge-share {
            background: #a3b635;
            text-decoration: none;
        }
        .dark .badge-share:hover {
            background: #a3b635;
            color: white;
            text-decoration: none;
        }


        /* Description */
        .desc-text {
            font-size: 14px;
            line-height: 1.7;
            color: #4b5563;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .dark .desc-text {
            color: #94a3b8;
        }
        .desc-text.collapsed {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .read-more-btn {
            font-size: 14px;
            font-weight: 500;
            color: #3b82f6;
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
            margin-top: 4px;
        }
        .read-more-btn:hover { text-decoration: underline; }

        /* Tabs */
        .tabs-bar {
            display: flex;
            gap: 0;
            border-bottom: 2px solid rgba(209,230,255,0.6);
            margin: 0 -32px;
            padding: 0 32px;
        }
        .tab-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: #6b7280;
            padding: 10px 4px;
            margin-right: 24px;
            border-bottom: 2px solid transparent;
            margin-bottom: -2px;
            cursor: pointer;
            transition: all 0.2s;
            background: none;
            border-top: none;
            border-left: none;
            border-right: none;
        }
        .tab-btn.active {
            color: #1d4ed8;
            border-bottom-color: #1d4ed8;
            font-weight: 600;
        }
        .dark .tab-btn { color: #64748b; }
        .dark .tab-btn.active { color: #60a5fa; border-bottom-color: #60a5fa; }

        .search-box {
            width: 100%;
            padding: 10px 16px 10px 40px;
            background: #f1f7ff;
            border: 1px solid rgba(196,220,255,0.7);
            border-radius: 12px;
            font-size: 14px;
            color: #374151;
            outline: none;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .search-box:focus {
            border-color: #93c5fd;
            box-shadow: 0 0 0 3px rgba(147,197,253,0.2);
        }
        .dark .search-box {
            background: rgba(30,41,59,0.7);
            border-color: rgba(51,65,85,0.6);
            color: #e2e8f0;
        }
        .search-wrap {
            position: relative;
        }
        .search-wrap .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 13px;
        }

        /* Variant cards grid */
        .variants-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .variant-card {
            background: rgba(248,251,255,0.9);
            border: 1px solid rgba(209,230,255,0.7);
            border-radius: 14px;
            padding: 16px;
            cursor: pointer;
            transition: all 0.2s;
        }
        .variant-card:hover {
            border-color: #93c5fd;
            box-shadow: 0 2px 12px rgba(59,130,246,0.1);
        }
        .variant-card.selected {
            border-color: #3b82f6;
            background: rgba(239,246,255,0.95);
            box-shadow: 0 0 0 2px rgba(59,130,246,0.25);
        }
        .variant-card.out-of-stock {
            opacity: 0.75;
            cursor: default;
        }
        .dark .variant-card {
            background: rgba(30,41,59,0.6);
            border-color: rgba(51,65,85,0.5);
        }
        .dark .variant-card.selected {
            border-color: #60a5fa;
            background: rgba(30,58,100,0.3);
        }
        .variant-name {
            font-size: 14px;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 4px;
        }
        .dark .variant-name { color: #e2e8f0; }
        .badge-available {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            color: #059669;
        }
        .badge-habis {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            color: #ef4444;
        }
        .variant-price {
            font-size: 16px;
            font-weight: 700;
            color: #1e293b;
            margin-top: 8px;
        }
        .dark .variant-price { color: #e2e8f0; }

        /* Qty + total row */
        .qty-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(240,248,255,0.8);
            border: 1px solid rgba(196,220,255,0.6);
            border-radius: 14px;
            padding: 16px 20px;
        }
        .dark .qty-row {
            background: rgba(30,41,59,0.6);
            border-color: rgba(51,65,85,0.5);
        }
        .qty-control {
            display: inline-flex;
            align-items: center;
            border: 1px solid rgba(196,220,255,0.8);
            border-radius: 10px;
            overflow: hidden;
            background: white;
        }
        .dark .qty-control {
            background: rgba(15,23,42,0.5);
            border-color: rgba(51,65,85,0.6);
        }
        .qty-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 500;
            color: #6b7280;
            background: none;
            border: none;
            cursor: pointer;
            transition: background 0.15s;
        }
        .qty-btn:hover { background: #f1f5f9; color: #374151; }
        .dark .qty-btn {
            background: transparent;
            color: #e2e8f0;
        }
        .dark .qty-btn:hover {
            background: rgba(51,65,85,0.4);
            color: #e2e8f0;
        }
        .qty-num {
            width: 40px;
            text-align: center;
            font-weight: 700;
            font-size: 15px;
            color: #1e293b;
        }
        .dark .qty-num { color: #e2e8f0; }

        /* Action buttons */
        .btn-cart {
            flex: 1;
            height: 48px;
            background: #3b82f6;
            color: white;
            font-weight: 700;
            font-size: 15px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: transform 0.1s;
            box-shadow: 0 2px 12px rgba(59,130,246,0.25);
        }
        .btn-cart:active:not(:disabled) { transform: translateY(-2px); }
        .btn-cart:disabled { opacity: 0.5; cursor: not-allowed; }
        .btn-view-cart {
            flex: 1;
            height: 48px;
            background: #10b981;
            color: white;
            font-weight: 700;
            font-size: 15px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: transform 0.1s;
            box-shadow: 0 2px 12px rgba(16,185,129,0.25);
        }
        .btn-view-cart:active { transform: translateY(-2px); }
        /* Remove hover color/background for cart buttons in dark mode */
        .dark .btn-cart:hover,
        .dark .btn-view-cart:hover {

            color: inherit;
        }

        /* Cart drawer */
        #cartDrawer aside {
            background: white;
        }
        .dark #cartDrawer aside {
            background: #0f172a;
        }

        /* Tab content */
        .tab-content { display: none; }
        .tab-content.active { display: block; }