:root {
            --pink: #e91e8c;
            --pink-dark: #c0176f;
            --pink-light: #fce4f3;
            --red: #ef4444;
            --gray-light: #f8f9fa;
            --border: #e5e7eb;
        }

        body {
            font-family: 'Segoe UI', sans-serif;
            background: #fff;
            color: #1a1a1a;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

        /* ===== ZOOM IMAGE ===== */
        .img-zoom-wrapper {
            position: relative;
            overflow: hidden;
            /* ✅ visible থেকে hidden */
            background: #f3f4f6;
            border-radius: 16px;
            cursor: crosshair;
        }

        .img-zoom-wrapper img.main-img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
            display: block;
            border-radius: 16px;
            transition: opacity 0.3s;
        }

        .zoom-lens {
            position: absolute;
            border: 2px solid var(--pink);
            width: 120px;
            height: 120px;
            border-radius: 50%;
            pointer-events: none;
            display: none;
            background: rgba(233, 30, 140, 0.05);
            z-index: 5;
        }

        .zoom-result {
            display: none;
            position: absolute;
            top: 0;
            left: 0;
            /* ✅ পাশে না, image এর উপরেই */
            width: 100%;
            height: 100%;
            border-radius: 16px;
            border: none;
            /* border সরিয়ে দিন */
            background-repeat: no-repeat;
            background-size: 250%;
            z-index: 100;
            pointer-events: none;
        }

        @media (max-width: 991px) {
            .zoom-result {
                display: none !important;
            }
        }

        /* ===== THUMBNAILS ===== */
        .thumb-list {
            display: flex;
            gap: 10px;
            padding: 12px 0 0;
            overflow-x: auto;
        }

        .thumb-list::-webkit-scrollbar {
            height: 4px;
        }

        .thumb-list::-webkit-scrollbar-thumb {
            background: var(--pink);
            border-radius: 4px;
        }

        .thumb-item {
            flex-shrink: 0;
            width: 72px;
            height: 88px;
            border-radius: 10px;
            overflow: hidden;
            border: 2px solid transparent;
            cursor: pointer;
            transition: border-color 0.2s, transform 0.2s;
        }

        .thumb-item:hover {
            transform: scale(1.05);
        }

        .thumb-item.active {
            border-color: var(--pink);
        }

        .thumb-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== PRODUCT INFO ===== */
        .product-title {
            font-size: 1.4rem;
            font-weight: 700;
            line-height: 1.4;
            color: #111;
        }

        @media (min-width: 992px) {
            .product-title {
                font-size: 1.7rem;
            }
        }

        .stars-row {
            color: #f59e0b;
            font-size: 1rem;
        }

        .price-current {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--pink);
        }

        .price-old {
            font-size: 1.3rem;
            color: #9ca3af;
            text-decoration: line-through;
        }

        .badge-save {
            background: #fee2e2;
            color: #b91c1c;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        /* ===== VARIATIONS ===== */
        .variation-btn {
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            background: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            text-align: center;
            width: 100%;
        }

        .variation-btn:hover {
            border-color: #d1d5db;
            background: #f9fafb;
        }

        .variation-btn.selected {
            border-color: var(--pink);
            background: var(--pink-light);
            color: var(--pink-dark);
        }

        .variation-btn .stock-info {
            font-size: 0.72rem;
            color: #6b7280;
            font-weight: 400;
            margin-top: 2px;
        }

        /* ===== ORDER FORM ===== */
        .order-card {
            background: #fafafa;
            border-radius: 20px;
            padding: 28px;
            border: 1px solid var(--border);
        }

        .order-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: #111;
        }

        .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: #374151;
            margin-bottom: 6px;
        }

        .form-control,
        .form-select {
            border: 1.5px solid #d1d5db;
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 0.9rem;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--pink);
            box-shadow: 0 0 0 3px rgba(233, 30, 140, 0.12);
            outline: none;
        }

        /* ===== QUANTITY ===== */
        .qty-wrapper {
            display: flex;
            align-items: center;
            border: 1.5px solid #d1d5db;
            border-radius: 10px;
            overflow: hidden;
            width: fit-content;
        }

        .qty-btn {
            background: none;
            border: none;
            width: 40px;
            height: 46px;
            font-size: 1.2rem;
            cursor: pointer;
            color: #374151;
            transition: background 0.2s;
        }

        .qty-btn:hover {
            background: #f3f4f6;
        }

        .qty-input {
            width: 56px;
            border: none;
            border-left: 1.5px solid #d1d5db;
            border-right: 1.5px solid #d1d5db;
            text-align: center;
            font-weight: 600;
            font-size: 1rem;
            padding: 0;
            height: 46px;
        }

        .qty-input:focus {
            outline: none;
            box-shadow: none;
        }

        /* ===== PAYMENT ===== */
        .payment-option {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border: 1.5px solid var(--border);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.2s;
            margin-bottom: 10px;
        }

        .payment-option:hover {
            background: #f9fafb;
        }

        .payment-option input[type="radio"] {
            accent-color: var(--pink);
            width: 18px;
            height: 18px;
        }

        .payment-option.selected {
            border-color: var(--pink);
            background: var(--pink-light);
        }

        .payment-info-box {
            border-radius: 12px;
            padding: 16px;
            margin-top: 12px;
            font-size: 0.875rem;
        }

        .bkash-box {
            background: #fdf2f8;
            border: 1.5px solid #f9a8d4;
        }

        .nagad-box {
            background: #fff7ed;
            border: 1.5px solid #fdba74;
        }

        /* ===== SUBMIT BTN ===== */
        .btn-order {
            background: linear-gradient(135deg, var(--pink), var(--red));
            border: none;
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 15px;
            border-radius: 14px;
            width: 100%;
            transition: all 0.3s;
            cursor: pointer;
        }

        .btn-order:hover:not(:disabled) {
            background: linear-gradient(135deg, var(--pink-dark), #dc2626);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(233, 30, 140, 0.35);
        }

        .btn-order:disabled {
            opacity: 0.55;
            cursor: not-allowed;
            transform: none;
        }

        /* ===== FEATURE ICONS ===== */
        .feature-item {
            text-align: center;
            padding: 16px 8px;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: var(--pink-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            font-size: 1.3rem;
            color: var(--pink);
        }

        .feature-item p {
            font-size: 0.78rem;
            font-weight: 600;
            margin: 0;
            color: #374151;
        }

        /* ===== DESCRIPTION ===== */
        .desc-section {
            background: #fff;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            margin-top: 24px;
        }

        .desc-section h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .desc-section p {
            font-size: 0.875rem;
            color: #4b5563;
            line-height: 1.8;
            white-space: pre-line;
        }

        /* ===== TOAST ===== */
        .toast-msg {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 14px 22px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            z-index: 9999;
            animation: slideIn 0.3s ease;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }

        .toast-error {
            background: #ef4444;
            color: #fff;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-12px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== STICKY IMAGE ===== */
        @media (min-width: 992px) {
            .sticky-img-col {
                position: sticky;
                top: 20px;
                align-self: flex-start;
            }
        }

        /* ===== NAV ARROWS ===== */
        .img-nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.92);
            border: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
            z-index: 10;
            cursor: pointer;
            transition: background 0.2s;
        }

        .img-nav-btn:hover {
            background: #fff;
        }

        .img-nav-prev {
            left: 10px;
        }

        .img-nav-next {
            right: 10px;
        }