.product-detail {
            padding: 40px 0 60px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 30px;
            font-size: 13px;
            color: #999;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: #333;
            font-weight: 500;
        }
        .product-detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: start;
        }
        .detail-gallery { display: flex; flex-direction: column; gap: 12px; }
        .detail-image-box {
            background: #f5f5f5;
            border-radius: 12px;
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 450px;
            cursor: zoom-in;
            position: relative;
            overflow: hidden;
        }
        .detail-image-box img {
            max-height: 380px;
            max-width: 100%;
            object-fit: contain;
            transition: transform 0.18s ease-out;
            transform-origin: center;
            will-change: transform;
        }
        /* Hover'da büyüteç — JS pivot olarak transform-origin'i imleç pozisyonuna ayarlar */
        .detail-image-box.zoom-active { cursor: zoom-out; }
        .detail-image-box.zoom-active img {
            transform: scale(2.2);
        }
        .detail-image-box .zoom-hint {
            position: absolute;
            top: 10px;
            right: 12px;
            background: rgba(15,23,42,0.65);
            color: #fff;
            padding: 5px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            opacity: 0;
            transition: opacity 0.2s ease;
            pointer-events: none;
            display: flex;
            align-items: center;
            gap: 5px;
            z-index: 2;
        }
        .detail-image-box:hover .zoom-hint { opacity: 1; }
        .detail-image-box.zoom-active .zoom-hint { opacity: 0; }

        /* ===== LIGHTBOX (tam ekran galeri) ===== */
        .urun-lightbox {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.92);
            z-index: 99999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .urun-lightbox.open { opacity: 1; }
        .urun-lightbox-image-wrap {
            max-width: 92vw;
            max-height: 88vh;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: grab;
            user-select: none;
        }
        .urun-lightbox-image-wrap.panning { cursor: grabbing; }
        .urun-lightbox-image-wrap img {
            max-width: 92vw;
            max-height: 88vh;
            object-fit: contain;
            transition: transform 0.2s ease;
            user-select: none;
            -webkit-user-drag: none;
        }
        .urun-lightbox-close, .urun-lightbox-prev, .urun-lightbox-next,
        .urun-lightbox-zoom-in, .urun-lightbox-zoom-out, .urun-lightbox-reset {
            position: absolute;
            background: rgba(255,255,255,0.12);
            color: #fff;
            border: none;
            cursor: pointer;
            border-radius: 50%;
            width: 48px;
            height: 48px;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.18s ease, transform 0.15s ease;
        }
        .urun-lightbox-close:hover, .urun-lightbox-prev:hover, .urun-lightbox-next:hover,
        .urun-lightbox-zoom-in:hover, .urun-lightbox-zoom-out:hover, .urun-lightbox-reset:hover {
            background: rgba(255,255,255,0.25);
            transform: scale(1.06);
        }
        .urun-lightbox-close { top: 18px; right: 18px; }
        .urun-lightbox-prev  { left: 18px;  top: 50%; transform: translateY(-50%); }
        .urun-lightbox-next  { right: 18px; top: 50%; transform: translateY(-50%); }
        .urun-lightbox-prev:hover, .urun-lightbox-next:hover { transform: translateY(-50%) scale(1.06); }

        .urun-lightbox-zoom-controls {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            background: rgba(0,0,0,0.5);
            padding: 8px 14px;
            border-radius: 999px;
        }
        .urun-lightbox-zoom-controls button {
            position: static;
            width: 38px;
            height: 38px;
            font-size: 14px;
        }
        .urun-lightbox-zoom-pct {
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            min-width: 56px;
            justify-content: center;
        }
        .urun-lightbox-counter {
            position: absolute;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            color: #fff;
            background: rgba(0,0,0,0.5);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        @media (max-width: 600px) {
            .detail-image-box.zoom-active img { transform: scale(1.8); }
            .urun-lightbox-close, .urun-lightbox-prev, .urun-lightbox-next { width: 40px; height: 40px; font-size: 15px; }
            .urun-lightbox-prev { left: 8px; }
            .urun-lightbox-next { right: 8px; }
        }
        .detail-thumbnails {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            padding: 4px 0;
        }
        .detail-thumb {
            flex-shrink: 0;
            width: 70px;
            height: 70px;
            border: 2px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f9f9f9;
            transition: border-color 0.2s;
        }
        .detail-thumb:hover { border-color: #0054A6; }
        .detail-thumb.active { border-color: #0054A6; box-shadow: 0 0 0 2px rgba(0,84,166,0.2); }
        .detail-thumb img { max-width: 60px; max-height: 60px; object-fit: contain; }
        .detail-info {
            padding-top: 10px;
        }
        .detail-category {
            display: inline-block;
            background: #e8f0fa;
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }
        .detail-title {
            font-size: 28px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .detail-icon-badges {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }
        .detail-icon-badges img {
            height: 50px;
            width: auto;
            object-fit: contain;
        }
        .detail-name-area {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 20px;
        }
        .detail-energy-badge img {
            width: 50px;
            height: auto;
        }
        .detail-name-text {
            flex: 1;
        }
        .detail-subtitle {
            display: block;
            font-size: 14px;
            color: #666;
            margin-top: 6px;
            line-height: 1.5;
        }
        .detail-price-row {
            margin-top: 20px;
            margin-bottom: 8px;
        }
        .detail-price {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
        }
        .detail-price.ask {
            font-size: 15px;
            color: #e67e22;
        }
        .detail-vat {
            font-size: 13px;
            color: #999;
            margin-left: 6px;
        }
        .detail-stock {
            font-size: 14px;
            font-weight: 600;
            color: #27ae60;
            margin-bottom: 18px;
        }
        .detail-stock i { margin-right: 4px; }
        .detail-cart-row {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
        }
        .detail-qty {
            display: flex;
            align-items: center;
            border: 2px solid #ddd;
            border-radius: 8px;
            overflow: hidden;
        }
        .detail-qty-btn {
            background: #f5f5f5;
            border: none;
            width: 42px;
            height: 46px;
            font-size: 14px;
            color: #555;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .detail-qty-btn:hover { background: #e0e0e0; }
        .detail-qty input {
            width: 54px;
            height: 46px;
            text-align: center;
            border: none;
            border-left: 1px solid #ddd;
            border-right: 1px solid #ddd;
            font-family: inherit;
            font-size: 16px;
            font-weight: 600;
            color: #333;
            outline: none;
            -moz-appearance: textfield;
        }
        .detail-qty input::-webkit-outer-spin-button,
        .detail-qty input::-webkit-inner-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }
        .detail-add-cart {
            flex: 1;
            background: var(--primary);
            color: white;
            border: none;
            height: 50px;
            border-radius: 8px;
            font-family: inherit;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: background 0.2s;
        }
        .detail-add-cart:hover { background: #003d7a; }
        .detail-fav-btn {
            width: 50px; height: 50px; background: white; border: 2px solid #eee;
            border-radius: 8px; font-size: 20px; color: #ccc; cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            transition: all 0.2s; flex-shrink: 0;
        }
        .detail-fav-btn:hover { border-color: #e74c3c; color: #e74c3c; }
        .detail-fav-btn.active { border-color: #e74c3c; color: #e74c3c; }
        .detail-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 30px;
        }
        .detail-feature {
            background: #f9f9f9;
            border-radius: 8px;
            padding: 16px;
            text-align: center;
        }
        .detail-feature i {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 8px;
            display: block;
        }
        .detail-feature span {
            font-size: 12px;
            font-weight: 600;
            color: #333;
        }
        /* Tabs */
        .product-tabs-section {
            padding: 40px 0;
            background: #f9f9f9;
            border-top: 1px solid #eee;
        }
        .tab-header {
            border-bottom: 3px solid #eee;
            margin-bottom: 30px;
        }
        .tab-buttons {
            display: flex;
            gap: 0;
        }
        .tab-btn {
            background: none;
            border: none;
            padding: 14px 28px;
            font-family: inherit;
            font-size: 15px;
            font-weight: 600;
            color: #999;
            cursor: pointer;
            border-bottom: 3px solid transparent;
            margin-bottom: -3px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        .tab-btn:hover { color: #555; }
        .tab-btn.active {
            color: #0054A6;
            border-bottom-color: #0054A6;
        }

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

        /* Feature blocks */
        .feature-block {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid #eee;
        }
        .feature-block:last-child { border-bottom: none; }
        .feature-block-icon {
            width: 70px;
            height: 70px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .feature-block-icon img {
            max-width: 60px;
            max-height: 60px;
            object-fit: contain;
        }
        .feature-block-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 8px;
        }
        .feature-block-text p {
            font-size: 14px;
            color: #555;
            line-height: 1.7;
        }

        /* Specs table */
        .specs-table {
            width: 100%;
            border-collapse: collapse;
        }
        .specs-table tr.even { background: white; }
        .specs-table tr.odd { background: #f5f5f5; }
        .specs-table td {
            padding: 14px 20px;
            font-size: 14px;
            border-bottom: 1px solid #eee;
        }
        .spec-key {
            font-weight: 600;
            color: #333;
            width: 40%;
        }
        .spec-val { color: #555; }

        /* Doc items */
        .doc-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background: white;
            border: 1px solid #eee;
            border-radius: 8px;
            margin-bottom: 10px;
            transition: all 0.2s;
            color: #333;
        }
        .doc-item:hover {
            border-color: #0054A6;
            box-shadow: 0 2px 8px rgba(0,84,166,0.1);
            color: #0054A6;
        }
        .doc-item .fa-file-pdf { font-size: 24px; color: #e74c3c; }
        .doc-item span { flex: 1; font-size: 14px; font-weight: 500; }
        .doc-item .fa-download { font-size: 14px; color: #999; }
        .doc-item:hover .fa-download { color: #0054A6; }

        @media (max-width: 768px) {
            .tab-btn { padding: 12px 16px; font-size: 13px; }
            .feature-block { flex-direction: column; gap: 12px; }
            .spec-key { width: 50%; }
        }

        /* Taksit */
        .taksit-bank-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .taksit-bank-tab {
            padding: 10px 18px;
            border: 2px solid #e0e0e0;
            background: white;
            border-radius: 8px;
            font-family: inherit;
            font-size: 13px;
            font-weight: 600;
            color: #666;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        .taksit-bank-tab:hover { border-color: var(--bank-color, #0054A6); color: var(--bank-color, #0054A6); }
        .taksit-bank-tab.active { background: var(--bank-color, #0054A6); border-color: var(--bank-color, #0054A6); color: white; }
        .taksit-bank-tab i { font-size: 16px; }
        .taksit-table-wrap { display: none; }
        .taksit-table-wrap.active { display: block; }
        .taksit-table {
            width: 100%;
            border-collapse: collapse;
            border-radius: 8px;
            overflow: hidden;
        }
        .taksit-table th {
            background: #f5f5f5;
            padding: 12px 16px;
            text-align: left;
            font-size: 13px;
            font-weight: 600;
            color: #555;
            border-bottom: 2px solid #e0e0e0;
        }
        .taksit-table td {
            padding: 11px 16px;
            border-bottom: 1px solid #f0f0f0;
            font-size: 13px;
        }
        .taksit-table tr:hover { background: #fafafa; }
        .taksit-table tr.taksit-free { background: #f0fff4; }
        .taksit-table tr.taksit-free:hover { background: #e0f8e8; }
        .taksit-count { font-weight: 600; color: #333; }
        .taksit-amount { font-weight: 600; color: #0054A6; }
        .taksit-total { color: #666; }
        .taksit-badge-free {
            background: #27ae60;
            color: white;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 10px;
            margin-left: 6px;
            text-transform: uppercase;
        }
        @media (max-width: 768px) {
            .taksit-bank-tabs { gap: 6px; }
            .taksit-bank-tab { padding: 8px 12px; font-size: 11px; }
            .taksit-bank-tab i { display: none; }
            .taksit-table th, .taksit-table td { padding: 8px 10px; font-size: 12px; }
        }

        /* Reviews */
        .rv-summary { display:flex; align-items:center; gap:30px; margin-bottom:30px; padding:24px; background:#f9f9f9; border-radius:12px; flex-wrap:wrap; }
        .rv-avg { text-align:center; min-width:120px; }
        .rv-avg-num { font-size:48px; font-weight:700; color:#0054A6; line-height:1; }
        .rv-avg-stars { color:#f39c12; font-size:20px; margin:8px 0 4px; }
        .rv-avg-count { font-size:13px; color:#999; }
        .rv-bars { flex:1; min-width:200px; }
        .rv-bar-row { display:flex; align-items:center; gap:8px; margin-bottom:4px; font-size:12px; }
        .rv-bar-label { width:50px; text-align:right; color:#666; }
        .rv-bar-track { flex:1; height:8px; background:#e0e0e0; border-radius:4px; overflow:hidden; }
        .rv-bar-fill { height:100%; background:#f39c12; border-radius:4px; }
        .rv-bar-count { width:30px; color:#999; }

        .rv-item { padding:20px 0; border-bottom:1px solid #eee; }
        .rv-item:last-child { border-bottom:none; }
        .rv-item-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:8px; }
        .rv-item-user { font-weight:600; color:#333; font-size:14px; }
        .rv-item-date { font-size:12px; color:#999; }
        .rv-item-stars { color:#f39c12; font-size:14px; margin-bottom:6px; }
        .rv-item-title { font-weight:600; color:#333; font-size:14px; margin-bottom:4px; }
        .rv-item-comment { font-size:14px; color:#555; line-height:1.7; }
        .rv-empty { text-align:center; padding:40px; color:#999; }
        .rv-empty i { font-size:40px; display:block; margin-bottom:12px; color:#ddd; }

        .rv-form { margin-top:30px; padding:24px; background:#f9f9f9; border-radius:12px; }
        .rv-form h3 { font-size:18px; font-weight:700; margin-bottom:16px; color:#1a1a2e; }
        .rv-form-login { text-align:center; padding:30px; color:#666; }
        .rv-form-login a { color:#0054A6; font-weight:600; }
        .rv-stars-select { display:flex; gap:4px; margin-bottom:16px; flex-direction:row-reverse; justify-content:flex-end; }
        .rv-stars-select input { display:none; }
        .rv-stars-select label { font-size:28px; color:#ddd; cursor:pointer; transition:color 0.15s; }
        .rv-stars-select label:hover, .rv-stars-select label:hover ~ label,
        .rv-stars-select input:checked ~ label { color:#f39c12; }
        .rv-input { width:100%; padding:10px 14px; border:1px solid #ddd; border-radius:8px; font-family:inherit; font-size:14px; outline:none; margin-bottom:12px; }
        .rv-input:focus { border-color:#0054A6; }
        .rv-textarea { min-height:100px; resize:vertical; }
        .rv-submit { background:#0054A6; color:white; border:none; padding:12px 28px; border-radius:8px; font-family:inherit; font-size:15px; font-weight:600; cursor:pointer; display:flex; align-items:center; gap:8px; }
        .rv-submit:hover { background:#003d7a; }

        @media(max-width:768px) { .rv-summary { flex-direction:column; text-align:center; } }

        .related-products {
            padding: 50px 0;
            background: #f5f5f5;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .product-not-found {
            text-align: center;
            padding: 100px 20px;
        }
        .product-not-found i {
            font-size: 64px;
            color: #ddd;
            margin-bottom: 20px;
        }
        .product-not-found h2 {
            font-size: 24px;
            color: #333;
            margin-bottom: 12px;
        }
        .product-not-found p {
            color: #999;
            margin-bottom: 24px;
        }
        .btn-back {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 32px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 14px;
        }
        .btn-back:hover {
            background: #003d7a;
        }

        @media (max-width: 768px) {
            .product-detail-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .detail-image-box {
                min-height: 300px;
                padding: 30px;
            }
            .detail-title {
                font-size: 22px;
            }
            .detail-features {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }