/* =====================================================================
   PAGE: CHI TIẾT SẢN PHẨM — chỉ tải khi is_product()
   Markup thêm bởi inc/single-product.php (class gv-*), bộ đếm ảnh: assets/js/single-product.js
   Thẻ "sản phẩm tương tự" dùng components/product-card.css (đã tải vì is_woocommerce()).
   Bố cục: breadcrumb · [gallery khung 3:2 + thumbnail + thông số nổi bật | thẻ xám mua hàng] · tab
   ===================================================================== */

/* ---- Breadcrumb (in trên cùng bằng inc/single-product.php) ---- */
.gv-breadcrumb { padding: 14px 0 12px; font-size: 13px; color: var(--gv-muted); }
.gv-breadcrumb a { color: var(--gv-text-2); }
.gv-breadcrumb a:hover { color: var(--gv-accent); }
.gv-breadcrumb .gv-sep { margin: 0 6px; color: var(--gv-muted-2); }
.single-product .product-info .woocommerce-breadcrumb, .single-product .product-info .product-breadcrumb-container,
.single-product .product-info .product-short-description { display: none; }

/* ---- Hai cột: 58% / 42% ---- */
.single-product .product-main .row { align-items: flex-start; }
.single-product .product-main .product-gallery { flex: 0 0 58%; max-width: 58%; }
.single-product .product-main .product-info { flex: 0 0 42%; max-width: 42%; }

/* ---- Gallery: khung ảnh tỉ lệ 3:2, ảnh contain, nền trắng ---- */
.single-product .product-gallery { display: flex; flex-direction: column; }
.single-product .product-images { order: 0; position: relative; margin: 0; background: var(--gv-white); border: 1px solid var(--gv-border-2); border-radius: 12px; overflow: hidden; }
.single-product .product-images .image-tools, .single-product .product-images .badge-container { display: none; }
.single-product .product-images .flickity-viewport { height: auto !important; aspect-ratio: 3 / 2; }
.single-product .product-images .woocommerce-product-gallery__image { width: 100%; aspect-ratio: 3 / 2; margin: 0; }
.single-product .product-images .woocommerce-product-gallery__image > a { display: block; width: 100%; height: 100%; }
.single-product .product-images .woocommerce-product-gallery__image img { width: 100%; height: 100%; object-fit: contain; background: var(--gv-white); }

/* Nút trái/phải tròn xám, luôn hiện */
.single-product .product-images .flickity-prev-next-button { opacity: 1 !important; width: 38px; height: 38px; border-radius: 50%; background: rgba(115, 115, 115, .85); color: var(--gv-white); }
.single-product .product-images .flickity-prev-next-button:hover { background: var(--gv-text-2); }
.single-product .product-images .flickity-prev-next-button svg { fill: var(--gv-white); }
.single-product .product-images .flickity-prev-next-button.previous { left: 12px; }
.single-product .product-images .flickity-prev-next-button.next { right: 12px; }

/* Bộ đếm ảnh 1/14 */
.gv-gallery-count { position: absolute; left: 12px; bottom: 12px; z-index: 5; padding: 2px 10px; border-radius: 99px; background: rgba(0, 0, 0, .5); color: var(--gv-white); font-size: 12px; font-weight: 500; line-height: 20px; }

/* Thumbnail: ô 3:2 nhỏ, viền, ô đang chọn viền xanh */
.single-product .product-thumbnails { order: 1; margin-top: 10px; }
.single-product .product-thumbnails .col { flex: 0 0 16.6667% !important; width: 16.6667% !important; max-width: 16.6667% !important; padding: 0 6px 0 0; } /* mỗi thumbnail = 1/6 chiều ngang gallery */
.single-product .product-thumbnails .col a { display: block; border: 1px solid var(--gv-border-2); border-radius: 8px; overflow: hidden; background: var(--gv-white); }
.single-product .product-thumbnails .col.is-nav-selected a { border: 2px solid var(--gv-link); }
.single-product .product-thumbnails img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: contain; opacity: 1; margin: 0; }

/* ---- Thông số nổi bật ---- */
.gv-highlights { order: 2; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--gv-border); }
.gv-highlights-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.gv-highlights-head h3 { margin: 0; font-size: 16px; font-weight: 700; color: var(--gv-text); text-transform: none; }
.gv-to-specs { display: inline-flex; align-items: center; white-space: nowrap; font-size: 13px; font-weight: 600; color: var(--gv-link); }
.gv-to-specs .gv-ico { color: var(--gv-link); font-size: 18px; }
.gv-highlights ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.gv-highlights li { margin: 0; padding: 10px 12px; background: var(--gv-bg); border-radius: 8px; list-style: none; }
.gv-hl-label { display: block; margin-bottom: 4px; font-size: 12px; color: var(--gv-muted); }
.gv-hl-val { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--gv-text); }
.gv-hl-val .gv-ico { font-size: 18px; color: var(--gv-text-3); }

/* ---- Thẻ thông tin mua hàng ---- */
.single-product .product-info { padding: 18px 20px; background: var(--gv-bg); border-radius: 12px; }
.single-product .product-info .is-divider { display: none; }
.single-product .product-info .product-title { margin: 0 0 6px; font-size: 20px; font-weight: 700; line-height: 1.35; color: var(--gv-text); text-transform: none; }
.gv-specs-link { display: inline-block; margin-bottom: 12px; font-size: 13px; color: var(--gv-link); }
.single-product .product-info .price-wrapper { margin: 0 0 14px; }
.single-product .product-info .price { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; margin: 0; }
.single-product .product-info .price ins { order: 1; text-decoration: none; }
.single-product .product-info .price ins .amount, .single-product .product-info .price > .amount { color: var(--gv-price); font-size: 28px; font-weight: 700; line-height: 1.2; }
.single-product .product-info .price del { order: 2; opacity: 1; color: var(--gv-muted); font-size: 15px; }
.single-product .product-info .price del .amount { color: var(--gv-muted); font-weight: 400; }
.single-product .product-info .gv-pct { order: 3; padding: 1px 8px; font-size: 13px; }

/* Ưu đãi đi kèm */
.gv-offers { margin-bottom: 16px; padding: 12px; background: var(--gv-primary-soft); border: 1px solid var(--gv-primary-line); border-radius: 10px; }
.gv-offers-title { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; font-size: 14px; font-weight: 700; color: var(--gv-accent); }
.gv-offers-title .gv-ico { color: var(--gv-accent); font-size: 18px; }
.gv-offers ul { margin: 0; padding: 0; list-style: none; }
.gv-offers li { display: flex; align-items: flex-start; gap: 6px; margin: 0 0 6px; padding: 8px 10px; background: var(--gv-white); border-radius: 8px; font-size: 13px; line-height: 1.45; color: var(--gv-text-2); list-style: none; }
.gv-offers li:last-child { margin-bottom: 0; }
.gv-offers li .gv-ico { flex: none; margin-top: 1px; font-size: 16px; color: var(--gv-accent); }

/* Nút mua: lưới 2 cột — Mua ngay | Tư vấn ngay, Thêm vào giỏ ở hàng dưới */
.single-product .product-info form.cart { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 12px; }
.single-product .product-info form.cart .quantity { display: none; }
.single-product .product-info form.cart .button, .gv-advice { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; min-height: 56px; margin: 0; padding: 6px 12px; border-radius: 10px; font-size: 16px; font-weight: 700; text-transform: none; letter-spacing: 0; box-shadow: none; }
.single-product .product-info form.cart .ux-buy-now-button, .single-product .product-info form.cart .buy-now-button { order: 1; background: var(--gv-primary-dark) !important; color: var(--gv-white) !important; border: 0; }
.single-product .product-info form.cart .single_add_to_cart_button { order: 3; grid-column: 1 / -1; min-height: 48px; background: var(--gv-white) !important; color: var(--gv-accent) !important; border: 1.5px solid var(--gv-primary); }
.gv-advice { order: 2; background: var(--gv-white); border: 1.5px solid var(--gv-link); color: var(--gv-link); text-align: center; }
.gv-advice strong { font-size: 16px; }
.gv-advice span { font-size: 12px; font-weight: 400; color: var(--gv-text-3); }
.gv-notes { margin: 0; font-size: 12px; line-height: 1.55; color: var(--gv-muted); }

/* ---- Tab thông tin / thông số ---- */
.single-product .woocommerce-tabs { margin-top: 28px; padding: 8px 20px 20px; background: var(--gv-white); border: 1px solid var(--gv-border); border-radius: 12px; }
.single-product .woocommerce-tabs .tabs { border-bottom: 1px solid var(--gv-border); margin-bottom: 0; }
.single-product .woocommerce-tabs .nav > li > a { font-size: 15px; font-weight: 600; text-transform: none; color: var(--gv-text-3); }
.single-product .woocommerce-tabs .nav > li.active > a { color: var(--gv-accent); border-color: var(--gv-primary); }
.single-product .woocommerce-Tabs-panel { padding-top: 18px; }
.woocommerce-product-attributes { width: 100%; margin: 0; border: 1px solid var(--gv-border); border-radius: 10px; border-collapse: separate; border-spacing: 0; overflow: hidden; }
.woocommerce-product-attributes th, .woocommerce-product-attributes td { padding: 10px 14px; border: 0; border-bottom: 1px solid var(--gv-border-soft); font-size: 14px; text-align: left; }
.woocommerce-product-attributes tr:last-child th, .woocommerce-product-attributes tr:last-child td { border-bottom: 0; }
.woocommerce-product-attributes th { width: 30%; background: var(--gv-bg); font-weight: 600; color: var(--gv-text-2); text-transform: none; }
.woocommerce-product-attributes td p { margin: 0; }

/* ---- Sản phẩm tương tự + thanh mua cố định ---- */
.single-product .related .product-section-title, .single-product .related-products-wrapper .product-section-title { font-size: 20px; font-weight: 700; text-transform: none; color: var(--gv-text); }
.sticky-add-to-cart .button { background: var(--gv-primary-dark) !important; border-radius: 8px; text-transform: none; }
.sticky-add-to-cart .single_add_to_cart_button { background: var(--gv-white) !important; color: var(--gv-accent) !important; border: 1.5px solid var(--gv-primary); }

/* ---- Mobile / tablet: xếp 1 cột ---- */
@media (max-width: 849px) {
	.single-product .product-main .product-gallery, .single-product .product-main .product-info { flex: 0 0 100%; max-width: 100%; }
	.single-product .product-info { margin-top: 14px; padding: 14px; }
	.single-product .product-info .product-title { font-size: 18px; }
	.single-product .product-info .price ins .amount, .single-product .product-info .price > .amount { font-size: 24px; }
	.single-product .product-thumbnails .col { flex-basis: 25% !important; width: 25% !important; max-width: 25% !important; } /* mobile: 1/4 */
	.gv-highlights ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.single-product .woocommerce-tabs { padding: 4px 12px 14px; }
	.woocommerce-product-attributes th { width: 40%; }
}

/* ---- Mua kèm giá sốc (inc/product-bundle.php, assets/js/single-product.js) ---- */
.gv-bundle { margin-bottom: 16px; padding: 12px; background: var(--gv-warn-soft); border: 1px solid #fdba74; border-radius: 10px; }
.gv-bundle-title { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; font-size: 14px; font-weight: 700; color: #c2410c; }
.gv-bundle-title .gv-ico { color: var(--gv-warn); font-size: 20px; }
.gv-bundle ul { margin: 0; padding: 0; list-style: none; }
.gv-bundle-item { display: flex; align-items: center; gap: 10px; margin: 0 0 8px; padding: 8px 10px; background: var(--gv-white); border: 1px solid transparent; border-radius: 8px; list-style: none; transition: border-color .15s; }
.gv-bundle-item.is-selected { border-color: var(--gv-link); }
.gv-bundle-img { flex: none; width: 54px; }
.gv-bundle-img img { display: block; width: 54px; height: 54px; object-fit: contain; border-radius: 6px; }
.gv-bundle-info { flex: 1; min-width: 0; }
.gv-bundle-name { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 2px; font-size: 13px; font-weight: 500; line-height: 1.35; color: var(--gv-ink); }
.gv-bundle-price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; }
.gv-bundle-price strong { font-size: 14px; color: var(--gv-price); }
.gv-bundle-price del { font-size: 12px; color: var(--gv-muted-2); }
.gv-bundle-toggle { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; margin: 0; padding: 0; background: var(--gv-white); border: 1.5px solid var(--gv-link); border-radius: 50%; cursor: pointer; line-height: 1; }
.gv-bundle-toggle .gv-ico { font-size: 18px; color: var(--gv-link); }
.gv-bundle-item.is-selected .gv-bundle-toggle { background: var(--gv-link); }
.gv-bundle-item.is-selected .gv-bundle-toggle .gv-ico { color: var(--gv-white); }
.gv-bundle-total { margin-top: 4px; font-size: 13px; color: var(--gv-text-2); }
.gv-bundle-total[hidden] { display: none; }
.gv-bundle-total b { color: var(--gv-price); }
.gv-bundle-tag { color: #c2410c; font-weight: 500; }