/* Ngọc May – giao diện khách hàng. Biến màu/chữ/khoảng cách ở theme.css (design system), 3 màu thương hiệu lấy từ Admin › Giao diện. */
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 15px/1.6 var(--font); color: var(--text); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.25; margin: 0 0 .5em; color: var(--text); }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
button, input, select, textarea { font: inherit; color: inherit; }
.container { width: 100%; max-width: calc(var(--container) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.muted { color: var(--muted); }
.mt-0 { margin-top: 0; }

/* Nút – .btn: nút chính (mua hàng, CTA) · .btn--soft: nút phụ · .btn--ghost: nút viền · .icon-btn: nút biểu tượng
   Cỡ: .btn--lg (CTA chính của trang), mặc định. Trạng thái: hover, focus, [disabled], .is-loading (theme.css) */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2); min-height: 44px; padding: 10px 20px; border-radius: var(--radius-pill);
  border: 1.5px solid transparent; background: var(--primary); color: var(--on-color); font: 600 var(--fs-ui)/1.2 var(--font); cursor: pointer; text-decoration: none !important;
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast), box-shadow var(--dur), transform .12s var(--ease-out); }
.btn:hover { background: var(--primary-hover); }
.btn.btn:active:not([disabled]) { transform: scale(.97); }
.btn--soft { background: var(--secondary-soft); color: var(--text); }
.btn--soft:hover { background: color-mix(in srgb, var(--secondary) 30%, #fff); }
.btn--ghost { background: transparent; color: var(--primary); border-color: currentColor; }
.btn--ghost:hover { background: var(--primary-soft); }
.btn--block { width: 100%; }
.btn--lg { min-height: 50px; padding: 13px 26px; font-size: var(--fs-md); }

/* ===== Header: logo · tìm kiếm · hotline · giỏ hàng (dính đầu trang khi cuộn) ===== */
.announce { background: var(--accent); color: var(--text); text-align: center; font-size: var(--fs-sm); padding: 7px var(--gutter); }
.header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; transition: box-shadow var(--dur); }
.header.is-scrolled { box-shadow: var(--shadow-sm); }
.header__row { display: flex; align-items: center; gap: var(--sp-6); padding-block: var(--sp-3); }
.logo { display: flex; align-items: center; flex-shrink: 0; border-radius: var(--radius-sm); }
.logo img { height: 52px; width: auto; }
.logo span { font: 800 var(--fs-xl) var(--font-head); color: var(--primary); }

.search { position: relative; flex: 1; max-width: 600px; height: 48px; display: flex; align-items: center; gap: var(--sp-2); padding: 4px 4px 4px var(--sp-4);
  background: var(--primary-soft); border: 1.5px solid transparent; border-radius: var(--radius-pill); transition: background var(--dur-fast), border-color var(--dur-fast), box-shadow var(--dur-fast); }
.search:focus-within { background: var(--surface); border-color: var(--primary); box-shadow: var(--focus); }
.search__ico { width: 20px; height: 20px; color: var(--muted); flex-shrink: 0; }
.search input { flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; outline: none; font-size: var(--fs-ui); }
.search input::placeholder { color: var(--muted); }
.search button { height: 100%; padding: 0 22px; border: 0; border-radius: var(--radius-pill); background: var(--primary); color: var(--on-color); font-weight: 600; cursor: pointer; transition: background var(--dur-fast); }
.search button:hover { background: var(--primary-hover); }
.search button:focus-visible { outline: 2.5px solid var(--text); outline-offset: 1px; }

/* Gợi ý tìm kiếm (sản phẩm thật từ /api/search) */
.suggest { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 60; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: var(--sp-2); max-height: min(70vh, 480px); overflow-y: auto; overscroll-behavior: contain; animation: drop-in .18s var(--ease-out); }
.suggest[hidden] { display: none; }
.suggest__item { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: var(--sp-3); align-items: center; padding: 6px 8px; border-radius: var(--radius);
  color: var(--text); text-decoration: none !important; }
.suggest__item img, .suggest__noimg { width: 48px; height: 48px; object-fit: contain; border-radius: var(--radius-sm); background: var(--surface-2); }
.suggest__name { font-size: var(--fs-ui); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.suggest__name mark { background: var(--accent); color: inherit; border-radius: 3px; }
.suggest__price { text-align: right; white-space: nowrap; }
.suggest__price b { color: var(--sale); font: 800 var(--fs-ui) var(--font-head); font-variant-numeric: tabular-nums; }
.suggest__price small { display: block; color: var(--muted); font-size: var(--fs-xs); }
.suggest__item:hover, .suggest__item[aria-selected="true"] { background: var(--primary-soft); }
.suggest__all { display: block; margin-top: 4px; padding: 10px 8px 6px; border-top: 1px solid var(--border); font-weight: 600; font-size: var(--fs-ui); }
.suggest__all[aria-selected="true"] { text-decoration: underline; }
.suggest__empty { padding: 12px 8px; color: var(--muted); font-size: var(--fs-ui); }

.header__actions { display: flex; align-items: center; gap: var(--sp-2); margin-left: auto; }
.hotline { display: flex; align-items: center; gap: var(--sp-2); padding: 4px 12px 4px 4px; border-radius: var(--radius-pill); color: var(--muted); font-size: var(--fs-xs); line-height: 1.3;
  text-decoration: none !important; transition: background var(--dur-fast); }
.hotline svg { width: 36px; height: 36px; padding: 9px; border-radius: 50%; background: var(--secondary-soft); color: var(--primary); flex-shrink: 0; }
.hotline span { display: flex; flex-direction: column; }
.hotline b { color: var(--text); font-size: var(--fs-base); }
.hotline:hover { background: var(--surface-2); }
.cart-btn { display: inline-flex; align-items: center; gap: var(--sp-2); min-height: 44px; padding: 4px 18px 4px 4px; border-radius: var(--radius-pill); background: var(--accent-soft);
  color: var(--text); font-weight: 600; font-size: var(--fs-ui); text-decoration: none !important; transition: background var(--dur-fast), transform .12s var(--ease-out); }
.cart-btn:hover { background: var(--accent); }
.cart-btn:active { transform: scale(.96); }
.cart-btn__ico { position: relative; width: 36px; height: 36px; border-radius: 50%; background: var(--surface); display: grid; place-items: center; }
.cart-btn__ico svg { width: 20px; height: 20px; }
.header .menu-toggle { display: none; }

/* ===== Menu máy tính: nút "Danh mục sản phẩm" mở bảng danh mục + thanh liên kết ===== */
.nav { border-top: 1px solid var(--border); }
.nav__head, .nav__contact, .nav__home { display: none; }
.nav__list { list-style: none; display: flex; align-items: center; gap: var(--sp-1); margin: 0; padding: 6px 0; }
.nav__list > li { position: relative; }
.nav a, .nav__cats-btn { display: flex; align-items: center; gap: 6px; min-height: 40px; padding: 8px 14px; border: 0; border-radius: var(--radius-pill); background: none;
  color: var(--text); font: 600 var(--fs-ui)/1.2 var(--font); cursor: pointer; text-decoration: none !important; transition: background var(--dur-fast), color var(--dur-fast); }
.nav a:hover, .nav a.is-active { background: var(--primary-soft); color: var(--primary); }
.nav a:focus-visible, .nav__cats-btn:focus-visible { outline: none; box-shadow: var(--focus); }
.nav svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav .sale-link, .nav .flash-link { color: var(--sale); }
.nav .sale-link:hover, .nav .sale-link.is-active, .nav .flash-link:hover { background: var(--sale-soft); color: var(--sale); }
.nav__cats-btn { margin-right: var(--sp-2); background: var(--primary); color: var(--on-color); }
.nav__cats-btn:hover, .nav__cats-btn[aria-expanded="true"] { background: var(--primary-hover); }
.nav__caret { transition: transform var(--dur) var(--ease-out); }
.nav__cats-btn[aria-expanded="true"] .nav__caret { transform: rotate(180deg); }
.mega { display: none; position: absolute; top: 100%; left: 0; z-index: 60; width: min(560px, 90vw); grid-template-columns: 1fr 1fr; gap: 2px var(--sp-2);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: var(--sp-3); }
.nav__cats.is-open .mega { display: grid; animation: drop-in .2s var(--ease-out); }
@media (hover: hover) and (min-width: 1025px) { .nav__cats:hover .mega { display: grid; } }
.nav .mega__item { justify-content: space-between; gap: var(--sp-3); min-height: 44px; padding: 8px 12px; border-radius: var(--radius); }
.nav .mega__item.is-sub { padding-left: 28px; font-weight: 500; }
.mega__item small { flex-shrink: 0; min-width: 26px; padding: 1px 8px; border-radius: var(--radius-pill); background: var(--surface-2); color: var(--muted); font-size: var(--fs-xs); font-weight: 600; text-align: center; }
.mega__empty { padding: 8px 12px; font-size: var(--fs-ui); }

/* ===== Máy tính bảng + điện thoại: menu là ngăn kéo trượt từ trái ===== */
@media (max-width: 1024px) {
  .header .menu-toggle { display: inline-flex; }
  .hotline { display: none; }
  .nav { position: fixed; inset: 0 auto 0 0; z-index: 70; width: min(340px, 86vw); background: var(--surface); border: 0; box-shadow: var(--shadow-lg);
    overflow-y: auto; overscroll-behavior: contain; transform: translateX(-100%); transition: transform .28s var(--ease-out); }
  .nav.is-open { transform: none; }
  .nav__inner { display: flex; flex-direction: column; min-height: 100%; padding-bottom: calc(var(--sp-6) + env(safe-area-inset-bottom, 0px)); }
  .nav__head { display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 1; padding: var(--sp-3) 0; background: var(--surface); border-bottom: 1px solid var(--border); }
  .nav__head b { font: 800 var(--fs-lg) var(--font-head); }
  .nav__home { display: block; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 2px; padding: var(--sp-3) 0; }
  .nav a { min-height: 48px; padding: 10px 12px; border-radius: var(--radius); }
  .nav__cats-btn { display: none; }
  .mega { display: grid; position: static; width: auto; grid-template-columns: 1fr; padding: 0 0 var(--sp-3); margin-bottom: var(--sp-2); border: 0; border-bottom: 1px solid var(--border);
    border-radius: 0; box-shadow: none; }
  .mega::before { content: 'Danh mục sản phẩm'; padding: 4px 12px 6px; color: var(--muted); font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
  .nav .mega__item { min-height: 48px; }
  .nav__contact { display: grid; gap: var(--sp-2); margin-top: auto; padding-top: var(--sp-4); border-top: 1px solid var(--border); }
  .nav__contact .btn { justify-content: center; border-radius: var(--radius-pill); background: var(--primary); color: var(--on-color); }
  .nav__contact .btn:hover { background: var(--primary-hover); color: var(--on-color); }
  .nav__contact .btn--ghost, .nav__contact .btn--ghost:hover { background: var(--surface); color: var(--primary); border: 1.5px solid currentColor; }
  .nav-overlay { position: fixed; inset: 0; z-index: 65; background: var(--overlay); animation: fade-in .2s ease; }
  html.menu-open { overflow: hidden; }
}
@media (min-width: 1025px) { .nav-overlay { display: none !important; } }
@media (max-width: 860px) {
  .header__row { flex-wrap: wrap; gap: var(--sp-2) var(--sp-3); padding-block: var(--sp-2); }
  .logo img { height: 42px; }
  .search { order: 3; flex-basis: 100%; max-width: none; height: 44px; }
  .search button { padding: 0 18px; }
  .cart-btn { padding: 4px; }
  .cart-btn__text { display: none; }
}

/* Nút biểu tượng + số trên giỏ */
.icon-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%;
  border: 0; background: var(--accent-soft); color: var(--text); cursor: pointer; }
.icon-btn svg { width: 22px; height: 22px; }
.cart-count { position: absolute; top: -2px; right: -2px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: var(--radius); background: var(--sale); color: var(--on-color);
  font-size: var(--fs-xs); font-weight: 700; display: flex; align-items: center; justify-content: center; }
.cart-count:empty, .cart-count[data-n="0"] { display: none; }

/* Breadcrumb */
.crumbs { font-size: var(--fs-sm); color: var(--muted); padding: 14px 0 6px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.crumbs li + li::before { content: '›'; margin-right: 6px; }
.crumbs a { color: var(--muted); }

/* Khối trang chủ */
.section { padding: var(--section) 0; }
.section__head { display: flex; align-items: end; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.section__head h2 { margin: 0; }
.hero { position: relative; margin-top: 18px; border-radius: var(--radius-xl); overflow: hidden; background: var(--accent-soft); }
.hero__slides { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.hero__slides::-webkit-scrollbar { display: none; }
.hero__slide { flex: 0 0 100%; scroll-snap-align: start; position: relative; min-height: 300px; display: flex; align-items: center; }
.hero__slide img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__slide.has-img .hero__text { background: color-mix(in srgb, var(--bg) 90%, transparent); }
.hero__text { position: relative; max-width: 520px; margin: 32px; padding: 24px 28px; border-radius: var(--radius-lg); }
.hero__text p { color: var(--text-2); font-size: var(--fs-md); }
.hero__dots { position: absolute; bottom: 12px; left: 0; right: 0; display: flex; justify-content: center; gap: 6px; }
.hero__dots button { width: 9px; height: 9px; border-radius: 50%; border: 0; background: color-mix(in srgb, var(--text) 20%, transparent); padding: 0; cursor: pointer; }
.hero__dots button.is-on { background: var(--primary); width: 22px; border-radius: var(--radius-sm); }
.perks { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-3); margin-top: var(--sp-4); }
.perk { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 14px 16px; display: flex; gap: 12px; align-items: center; font-size: var(--fs-ui); }
.perk b { display: block; font-size: var(--fs-ui); }
.perk__ico { width: 40px; height: 40px; border-radius: var(--radius); display: grid; place-items: center; background: var(--secondary-soft); color: var(--primary); flex-shrink: 0; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.cat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px; text-align: center; color: var(--text); transition: box-shadow .2s, transform .2s; }
.cat-card:hover { box-shadow: var(--shadow); text-decoration: none; }
.cat-card__img { width: 84px; height: 84px; margin: 0 auto 10px; border-radius: 50%; overflow: hidden; background: var(--accent-soft); display: grid; place-items: center;
  font: 800 28px var(--font-head); color: var(--primary); }
.cat-card__img img { width: 100%; height: 100%; object-fit: cover; }
.cat-card b { display: block; font-size: var(--fs-ui); line-height: 1.35; }
.cat-card small { color: var(--muted); }
.intro { background: var(--secondary-soft); border-radius: var(--radius-xl); padding: 32px; display: grid; gap: 8px; }

/* Thẻ sản phẩm */
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap-grid); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: var(--shadow); border-color: transparent; }
.card__img { position: relative; aspect-ratio: 1; background: var(--surface-2); display: block; }
.card__img img { width: 100%; height: 100%; object-fit: contain; }
/* Nhãn: 1 kiểu (màu sale cho giảm giá; --out cho hết hàng) */
.badge { position: absolute; top: 10px; left: 10px; background: var(--sale); color: var(--on-color); font-size: var(--fs-xs); font-weight: 700; line-height: 1.5; padding: 2px 9px; border-radius: var(--radius-pill); }
.badge--out { background: var(--disabled); }
.card__body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card__title { font: inherit; margin: 0; }
.card__name { color: var(--text); font-weight: 600; font-size: var(--fs-ui); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.8em; }
.price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-top: auto; }
.price b { color: var(--sale); font: 800 var(--fs-price) var(--font-head); }
.price s { color: var(--muted); font-size: var(--fs-sm); }
.price small { color: var(--muted); font-size: var(--fs-xs); }
/* Nút trong thẻ sản phẩm: gọn hơn nhưng vẫn dễ bấm (40px) */
.card .btn, .fcard__add { min-height: 40px; padding: 8px 12px; }

/* Danh sách + bộ lọc */
.listing { display: grid; grid-template-columns: 250px 1fr; gap: 24px; align-items: start; }
.filters { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px; position: sticky; top: 130px; }
.filters h3 { font-size: var(--fs-base); margin: 14px 0 8px; }
.filters h3:first-child { margin-top: 0; }
.filters ul { list-style: none; margin: 0; padding: 0; }
.filters li a { display: block; padding: 5px 8px; border-radius: var(--radius-sm); color: var(--text-2); font-size: var(--fs-ui); }
.filters li a.is-active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.filters label { display: flex; align-items: center; gap: 8px; font-size: var(--fs-ui); padding: 3px 0; }
.filters .row { display: flex; gap: 6px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.filter-toggle { display: none; }
.cat-desc { color: var(--text-2); max-width: 760px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 16px; }
.chip { padding: 6px 14px; border-radius: var(--radius-pill); background: var(--secondary-soft); color: var(--text); font-size: var(--fs-ui); }
.empty { text-align: center; padding: 48px 16px; background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius-lg); color: var(--muted); }
.pagination { display: flex; justify-content: center; gap: 6px; margin: 28px 0 8px; flex-wrap: wrap; }
.pagination a, .pagination span { min-width: 44px; height: 44px; display: grid; place-items: center; padding: 0 12px; border-radius: var(--radius-pill); border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.pagination .is-current { background: var(--primary); color: var(--on-color); border-color: var(--primary); }

/* Chi tiết sản phẩm */
.pd { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; margin-top: 8px; }
.gallery__main { aspect-ratio: 1; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.gallery__main img { width: 100%; height: 100%; object-fit: contain; }
.gallery__thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.gallery__thumbs button { flex: 0 0 72px; height: 72px; padding: 0; border: 2px solid transparent; border-radius: var(--radius); overflow: hidden; background: var(--surface); cursor: pointer; }
.gallery__thumbs button.is-on { border-color: var(--primary); }
.gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd__info h1 { font-size: clamp(22px, 2.6vw, 28px); }
.pd__meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: var(--fs-sm); color: var(--muted); margin-bottom: 12px; }
.pd__price { background: var(--accent-soft); border-radius: var(--radius-lg); padding: 14px 18px; margin: 12px 0 16px; }
.pd__price b { color: var(--sale); font: 800 var(--fs-price-lg) var(--font-head); }
.pd__price s { color: var(--muted); margin-left: 8px; }
.pd__short { color: var(--text-2); }
.opt { margin: 14px 0; }
.opt__label { font-weight: 600; font-size: var(--fs-ui); margin-bottom: 8px; }
.opt__values { display: flex; flex-wrap: wrap; gap: 8px; }
.opt__values button { padding: 8px 14px; border-radius: var(--radius); border: 1.5px solid var(--border); background: var(--surface); cursor: pointer; font-size: var(--fs-ui); }
.opt__values button.is-on { border-color: var(--primary); background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.opt__values button:disabled { opacity: .4; text-decoration: line-through; cursor: not-allowed; }
.qty { display: inline-flex; align-items: center; border: 1.5px solid var(--border); border-radius: var(--radius-pill); overflow: hidden; background: var(--surface); }
.qty button { width: 40px; height: 44px; border: 0; background: transparent; font-size: var(--fs-lg); cursor: pointer; }
.qty input { width: 48px; text-align: center; border: 0; height: 44px; outline: none; -moz-appearance: textfield; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.buy-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 16px 0; }
.buy-row .btn { flex: 1; min-width: 150px; }
.stock-note { font-size: var(--fs-sm); color: var(--muted); }
.stock-note.out { color: var(--error); font-weight: 600; }
.contact-box { display: flex; gap: 10px; flex-wrap: wrap; font-size: var(--fs-ui); margin-top: 8px; }
.tabs { margin-top: 36px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 8px 24px 24px; }
.tabs h2 { font-size: var(--fs-xl); margin-top: 18px; }
.specs { width: 100%; border-collapse: collapse; font-size: var(--fs-ui); }
.specs th, .specs td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.specs th { width: 34%; color: var(--text-2); font-weight: 600; background: var(--surface-2); }
.prose { overflow-wrap: anywhere; }
.prose img { border-radius: var(--radius); margin: 12px auto; height: auto; }
.prose iframe { max-width: 100%; }
.prose table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; }
.prose td, .prose th { border: 1px solid var(--border); padding: 8px; }
.sticky-buy { display: none; }

/* Giỏ, thanh toán */
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 24px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; }
.cart-line { display: grid; grid-template-columns: 76px 1fr auto; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); align-items: center; }
.cart-line:last-child { border-bottom: 0; }
.cart-line img { width: 76px; height: 76px; object-fit: cover; border-radius: var(--radius); background: var(--surface-2); }
.cart-line__name { font-weight: 600; color: var(--text); }
.cart-line__var { font-size: var(--fs-sm); color: var(--muted); }
.cart-line__err { font-size: var(--fs-sm); color: var(--error); }
.cart-line__right { text-align: right; display: flex; flex-direction: column; align-items: end; gap: 6px; }
.link-btn { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: var(--fs-sm); padding: 0; text-decoration: underline; }
.sum-row { display: flex; justify-content: space-between; padding: 6px 0; }
.sum-row.total { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 12px; font-weight: 700; font-size: var(--fs-lg); }
.sum-row.total b { color: var(--sale); }
.coupon { display: flex; gap: 8px; margin: 12px 0; }
.coupon input { flex: 1; min-width: 0; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-ui); font-weight: 600; }
.field.full { grid-column: 1 / -1; }
/* Ô nhập / chọn dùng chung: cao 44px, viền rõ, focus có vòng màu chính */
.field input, .field textarea, .field select, .coupon input, .filters input[type=number], .filters select, .toolbar select {
  width: 100%; min-height: 44px; padding: 10px 14px; border: 1.5px solid var(--border-strong); border-radius: var(--radius); background: var(--surface);
  font-size: var(--fs-ui); font-weight: 400; outline: none; transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.filters input[type=number], .filters select { min-height: 40px; padding: 8px 10px; }
.toolbar select { width: auto; }
:is(.field input, .field textarea, .field select, .coupon input, .filters input, .filters select, .toolbar select):focus { border-color: var(--primary); box-shadow: var(--focus); }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field .err { color: var(--error); font-weight: 400; font-size: var(--fs-sm); }
.pay-opt { display: flex; gap: 10px; align-items: flex-start; border: 1.5px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 8px; cursor: pointer; font-weight: 500; }
.pay-opt:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.alert { padding: 12px 16px; border-radius: var(--radius); background: var(--error-soft); color: var(--error); margin-bottom: 14px; }
.alert--ok { background: var(--success-soft); color: var(--success); }
.done { max-width: 640px; margin: 32px auto; text-align: center; }
.done__ico { width: 72px; height: 72px; border-radius: 50%; background: var(--secondary-soft); color: var(--primary); display: grid; place-items: center; margin: 0 auto 12px; }
.bank { text-align: left; background: var(--accent-soft); border-radius: var(--radius-lg); padding: 16px 20px; margin: 16px 0; }

/* Blog */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; color: var(--text); display: flex; flex-direction: column; }
.post-card:hover { text-decoration: none; box-shadow: var(--shadow); }
.post-card img { aspect-ratio: 16/10; object-fit: cover; width: 100%; background: var(--accent-soft); }
.post-card__body { padding: 14px 16px 18px; }
.post-card h3 { font-size: var(--fs-md); margin-bottom: 6px; }
.post-card p { color: var(--muted); font-size: var(--fs-ui); margin: 0; }
.article { max-width: 780px; margin: 0 auto; }
.article__cover { border-radius: var(--radius-lg); margin: 12px 0 20px; width: 100%; }
.coupons { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin-bottom: 24px; }
.coupon-card { border: 2px dashed var(--secondary); background: var(--secondary-soft); border-radius: var(--radius-lg); padding: 14px 16px; }
.coupon-card code { font: 800 var(--fs-lg) var(--font-head); color: var(--primary); }

/* Footer */
.footer { background: var(--dark); color: var(--on-dark); margin-top: var(--sp-12); padding: 40px 0 0; font-size: var(--fs-ui); }
.footer a { color: var(--on-color); }
.footer h3 { color: var(--on-color); font-size: var(--fs-md); }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 24px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer__logo { background: var(--surface); border-radius: var(--radius); padding: 6px 10px; display: inline-block; margin-bottom: 10px; }
.footer__logo img { height: 48px; }
.footer__bottom { border-top: 1px solid color-mix(in srgb, var(--on-dark) 15%, transparent); margin-top: 28px; padding: 14px 0; font-size: var(--fs-sm); color: var(--on-dark-muted); }
.float-contact { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 10px; z-index: 40; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(120px); background: var(--text); color: var(--on-color); padding: 12px 20px; border-radius: var(--radius-pill);
  transition: transform .25s; z-index: 100; font-size: var(--fs-ui); }
.toast.is-on { transform: translateX(-50%) translateY(0); }

/* Responsive */
@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .perks { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .listing { grid-template-columns: minmax(0, 1fr); }
  .filter-toggle { display: inline-flex; }
  .pd { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .cart-layout { grid-template-columns: 1fr; }
  .posts { grid-template-columns: repeat(2, 1fr); }
  .sticky-buy { display: flex; position: fixed; left: 0; right: 0; bottom: 0; gap: 8px; padding: 10px 16px; background: var(--surface); border-top: 1px solid var(--border); z-index: 45; }
  .sticky-buy .btn { flex: 1; }
  body.has-sticky { padding-bottom: 70px; }
  body.has-sticky .float-contact { bottom: 84px; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .card__body { padding: 10px; }
  .posts, .form-grid, .footer__grid { grid-template-columns: 1fr; }
  .perks { grid-template-columns: 1fr 1fr; gap: 8px; }
  .perk { padding: 10px; font-size: var(--fs-xs); }
  .perk__ico { display: none; }
  .hero__slide { min-height: 240px; }
  .hero__text { margin: 16px; padding: 18px; }
  .intro { padding: 20px; }
  .tabs { padding: 4px 14px 16px; }
  .cart-line { grid-template-columns: 60px 1fr; }
  .cart-line img { width: 60px; height: 60px; }
  .cart-line__right { grid-column: 1 / -1; flex-direction: row; justify-content: space-between; align-items: center; }
}

/* ===================== Chuyển động & chi tiết trình duyệt =====================
   Nguyên tắc: nội dung luôn hiện sẵn (JS lỗi vẫn xem được), phản hồi nhanh 120–250ms,
   giảm chuyển động khi máy người dùng bật "prefers-reduced-motion". */
::selection { background: color-mix(in srgb, var(--secondary) 45%, #fff); color: var(--text); }
html { scroll-behavior: smooth; scrollbar-color: color-mix(in srgb, var(--primary) 45%, #fff) transparent; }
input, textarea { caret-color: var(--primary); }
a { text-underline-offset: 3px; }
:focus-visible { outline: 2.5px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-sm); }
.price b, .pd__price b, .sum-row span:last-child, .cart-count { font-variant-numeric: tabular-nums; }

/* Phản hồi khi bấm */
.icon-btn { transition: transform .15s var(--ease-out), background .2s; }
.icon-btn:hover { background: var(--accent); }
.icon-btn:active { transform: scale(.92); }
.opt__values button, .chip, .filters li a, .pagination a { transition: background .18s, border-color .18s, color .18s, transform .12s var(--ease-out); }
.opt__values button:active:not(:disabled) { transform: scale(.95); }
.chip:hover { background: color-mix(in srgb, var(--secondary) 30%, #fff); text-decoration: none; }
.pagination a:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

/* Header có bóng khi cuộn */
@keyframes drop-in { from { opacity: 0; transform: translateY(-6px); } }

/* Ảnh hiện mờ dần khi tải xong (chỉ khi JS đánh dấu là đang chờ) */
img.is-loading { opacity: 0; }
img.is-loaded { opacity: 1; transition: opacity .4s ease; }

/* Thẻ sản phẩm: ảnh phóng nhẹ khi rê chuột */
.card__img { overflow: hidden; }
.card__img img { transition: transform .5s var(--ease-out), opacity .4s ease; }
.card:hover .card__img img { transform: scale(1.05); }
.cat-card__img img { transition: transform .5s var(--ease-out); }
.cat-card:hover .cat-card__img img { transform: scale(1.08); }
.post-card { transition: box-shadow .2s, transform .2s var(--ease-out); }
.post-card img { transition: transform .5s var(--ease-out); }
.post-card:hover img { transform: scale(1.03); }

/* Danh sách hiện lần lượt khi cuộn tới (JS thêm .reveal rồi .is-in; không JS thì vẫn hiện) */
.reveal { opacity: 0; transform: translateY(14px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity .5s ease, transform .6s var(--ease-out); transition-delay: var(--d, 0ms); }

/* Ảnh chính trang sản phẩm đổi mượt */
.gallery__main img { transition: opacity .2s ease, transform .35s var(--ease-out); }
.gallery__main img.is-swapping { opacity: 0; transform: scale(.98); }
.gallery__thumbs button { transition: border-color .2s, transform .15s var(--ease-out); }
.gallery__thumbs button:hover { transform: translateY(-2px); }

/* Giá đổi khi chọn biến thể */
.price-flash { animation: price-flash .5s var(--ease-out); }
@keyframes price-flash { 0% { opacity: .2; transform: translateY(4px); } 100% { opacity: 1; transform: none; } }

/* Thêm vào giỏ: ảnh bay vào giỏ, số trên giỏ nảy lên */
.fly-img { position: fixed; z-index: 200; border-radius: var(--radius); object-fit: cover; pointer-events: none; box-shadow: var(--shadow); }
.cart-count.bump { animation: bump .45s var(--ease-out); }
@keyframes bump { 0% { transform: scale(1); } 35% { transform: scale(1.45); } 100% { transform: scale(1); } }

/* Menu & bộ lọc trên điện thoại mở dạng trượt */
@media (max-width: 860px) {
}
@keyframes slide-down { from { opacity: 0; clip-path: inset(0 0 100% 0); } to { opacity: 1; clip-path: inset(0 0 0 0); } }

/* Thông báo nhỏ có dấu tick */
.toast { display: flex; align-items: center; gap: 8px; transition: transform .35s var(--ease-out), opacity .25s; opacity: 0; }
.toast.is-on { opacity: 1; }
.toast svg { flex-shrink: 0; color: var(--secondary); }

/* Đặt hàng thành công: vẽ dấu tick */
.done__ico { animation: pop-in .5s var(--ease-out) both; }
.done__ico path { stroke-dasharray: 30; stroke-dashoffset: 30; animation: draw .5s .25s var(--ease-out) forwards; }
@keyframes pop-in { from { transform: scale(.6); opacity: 0; } }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* Ô nhập lỗi */
.field input.has-err, .field textarea.has-err { border-color: var(--error); background: var(--error-soft); }
.err:not(:empty) { animation: drop-in .2s var(--ease-out); }

/* Nút lên đầu trang */
.to-top { position: fixed; left: 16px; bottom: 16px; z-index: 40; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--surface); color: var(--primary);
  box-shadow: var(--shadow); display: grid; place-items: center; cursor: pointer; opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity .25s, transform .3s var(--ease-out); }
.to-top.is-on { opacity: 1; transform: none; pointer-events: auto; }
body.has-sticky .to-top { bottom: 84px; }

/* Icon khối cam kết */
.perk__ico svg { width: 22px; height: 22px; }
.perk { transition: border-color .2s; }
.perk:hover { border-color: color-mix(in srgb, var(--secondary) 60%, #fff); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .done__ico path { stroke-dashoffset: 0; }
  .card:hover .card__img img, .cat-card:hover .cat-card__img img, .post-card:hover img { transform: none; }
  /* vẫn giữ phản hồi bằng màu: nút, chip, viền ảnh chọn */
  .btn, .opt__values button, .chip, .gallery__thumbs button { transition: background .15s, border-color .15s, color .15s !important; }
}

/* ===== Trang sản phẩm: nút "Thêm vào giỏ" nhỏ + "Thanh toán" to, popup điền thông tin ===== */
.buy-row .btn--add, .sticky-buy .btn--add { flex: 0 0 auto; min-width: 0; padding: 10px 14px; font-size: var(--fs-ui); }
.buy-row .btn--pay { flex: 1 1 200px; padding: 15px 26px; font-size: var(--fs-md); }
.sticky-buy .btn--pay { flex: 1; padding: 13px 18px; font-size: var(--fs-md); }
@media (max-width: 380px) { .sticky-buy .btn--add span { display: none; } }

.quick { border: 0; padding: 0; background: transparent; color: var(--text); width: calc(100% - 32px); max-width: 540px; max-height: calc(100dvh - 32px); overflow: visible; }
.quick::backdrop { background: var(--overlay); }
.quick[open]::backdrop { animation: fade-in .25s ease; }
.quick__box { background: var(--surface); border-radius: var(--radius-xl); padding: 20px 22px 18px; display: grid; gap: 14px; max-height: calc(100dvh - 32px); overflow-y: auto; overscroll-behavior: contain; box-shadow: var(--shadow-lg); }
.quick[open] .quick__box { animation: quick-in .35s var(--ease-out); }
.quick.is-closing .quick__box { animation: quick-out .18s ease-in forwards; }
.quick.is-closing::backdrop { animation: fade-out .18s ease-in forwards; }
.quick__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.quick__head h2 { margin: 0; font-size: var(--fs-xl); }
.quick__close { width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--primary-soft); color: var(--text); display: grid; place-items: center; cursor: pointer; transition: background .2s, transform .12s var(--ease-out); }
.quick__close:hover { background: var(--accent); }
.quick__close:active { transform: scale(.92); }
.quick__item { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; background: var(--accent-soft); border-radius: var(--radius); padding: 10px 12px; }
.quick__item img { width: 64px; height: 64px; object-fit: cover; border-radius: var(--radius); background: var(--surface); }
.quick__item b { font-size: var(--fs-ui); line-height: 1.35; display: block; }
.quick__item .muted { font-size: var(--fs-sm); }
.quick__qty { font-weight: 700; white-space: nowrap; }
.quick__pay .pay-opt { margin-bottom: 6px; padding: 10px 12px; }
.quick__note { font-size: var(--fs-sm); text-align: center; margin: 0; }
.quick .form-grid { gap: 10px; }
.quick .field input { padding: 10px 12px; }
@keyframes quick-in { from { opacity: 0; transform: translateY(24px) scale(.98); } }
@keyframes quick-out { to { opacity: 0; transform: translateY(16px) scale(.98); } }
@keyframes fade-in { from { opacity: 0; } }
@keyframes fade-out { to { opacity: 0; } }
@media (max-width: 560px) {
  /* Điện thoại: popup là tấm trượt từ dưới lên */
  .quick { width: 100%; max-width: none; margin: auto 0 0; max-height: 92dvh; }
  .quick__box { border-radius: var(--radius-xl) var(--radius-xl) 0 0; max-height: 92dvh; padding: 16px 16px calc(16px + env(safe-area-inset-bottom, 0px)); }
  .quick[open] .quick__box { animation: sheet-in .38s var(--ease-out); }
  .quick.is-closing .quick__box { animation: sheet-out .2s ease-in forwards; }
  .quick .form-grid { grid-template-columns: 1fr; }
}
@keyframes sheet-in { from { transform: translateY(100%); } }
@keyframes sheet-out { to { transform: translateY(100%); } }
html.quick-open { overflow: hidden; }
html.quick-open .to-top, html.quick-open .float-contact { visibility: hidden; }

/* ===== Zalo: mã QR ở nút góc (máy tính), footer, trang liên hệ ===== */
.float-contact { align-items: flex-end; }
.zalo-pop { position: absolute; right: 0; bottom: 120px; width: 232px; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: 16px; display: grid; gap: 8px; justify-items: center; text-align: center; font-size: var(--fs-ui); color: var(--text); animation: zalo-in .25s var(--ease-out); transform-origin: bottom right; }
.zalo-pop[hidden] { display: none; }
.zalo-pop b { font-size: var(--fs-ui); padding-right: 20px; }
.zalo-pop img { width: 168px; height: 168px; border-radius: var(--radius); border: 1px solid var(--border); }
.zalo-pop .muted { font-size: var(--fs-xs); }
.float-contact .zalo-pop .btn { width: 100%; height: auto; border-radius: var(--radius-pill); padding: 9px 12px; font-size: var(--fs-ui); box-shadow: none; display: inline-flex; }
.zalo-pop__close { position: absolute; top: 8px; right: 8px; width: 28px; height: 28px; border-radius: 50%; border: 0; background: var(--primary-soft); color: var(--text); display: grid; place-items: center; cursor: pointer; }
@keyframes zalo-in { from { opacity: 0; transform: translateY(8px) scale(.96); } }
.footer__qr { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
.footer__qr img { width: 88px; height: 88px; border-radius: var(--radius-sm); background: var(--surface); padding: 4px; }
.footer__qr span { font-size: var(--fs-sm); color: var(--on-dark-muted); }
.contact-qr { display: flex; gap: 14px; align-items: center; background: var(--accent-soft); border-radius: var(--radius-lg); padding: 12px; margin: 12px 0; }
.contact-qr img { width: 120px; height: 120px; border-radius: var(--radius); background: var(--surface); flex-shrink: 0; }
.contact-qr p { margin: 4px 0 8px; font-size: var(--fs-sm); }
@media (prefers-reduced-motion: reduce) { .zalo-pop { animation: none; } }

/* ===== Nút liên hệ ở góc: hiện số, vòng sóng toả ra, điện thoại rung theo nhịp ===== */
.fc { --fc: var(--primary); display: flex; align-items: center; text-decoration: none !important; color: var(--on-color); filter: drop-shadow(0 6px 14px rgba(0, 0, 0, .18)); }
.fc--zalo { --fc: #0068FF; } /* màu nhận diện của Zalo */
.fc__ico { position: relative; width: 52px; height: 52px; border-radius: 50%; background: var(--fc); display: grid; place-items: center; flex-shrink: 0; font-weight: 800; font-size: var(--fs-xs); z-index: 1; }
.fc__ico::before, .fc__ico::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--fc); z-index: -1; animation: fc-wave 2.4s ease-out infinite; }
.fc__ico::after { animation-delay: 1.2s; }
.fc__ico svg { width: 24px; height: 24px; }
.fc--call .fc__ico svg { animation: fc-ring 2.4s ease-in-out infinite; transform-origin: 50% 50%; }
.fc__label { background: var(--fc); color: var(--on-color); font: 700 var(--fs-base)/1 var(--font); padding: 10px 30px 10px 16px; margin-right: -24px; border-radius: var(--radius-pill) 0 0 var(--radius-pill); white-space: nowrap; letter-spacing: .01em; font-variant-numeric: tabular-nums; transition: transform .2s var(--ease-out); }
.fc--zalo .fc__label { font-size: var(--fs-sm); padding-block: 9px; }
.fc:hover .fc__label { transform: translateX(-4px); }
.fc:active .fc__ico { transform: scale(.94); }
@keyframes fc-wave { 0% { transform: scale(1); opacity: .55; } 100% { transform: scale(1.7); opacity: 0; } }
@keyframes fc-ring { 0%, 50%, 100% { transform: rotate(0); } 5%, 15%, 25%, 35% { transform: rotate(-14deg); } 10%, 20%, 30%, 40% { transform: rotate(14deg); } }
@media (max-width: 560px) {
  .fc__ico { width: 48px; height: 48px; }
  .fc__label { font-size: var(--fs-ui); padding: 9px 28px 9px 13px; }
  .fc--zalo .fc__label { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .fc__ico::before, .fc__ico::after, .fc--call .fc__ico svg { animation: none; }
  .fc__ico::before { transform: scale(1.25); opacity: .25; }
}

/* ===================== Banner, Flash Sale, thêm giỏ nhanh, giỏ hàng nhanh ===================== */
/* Banner chính: ảnh ngang 3:1 (điện thoại 16:9, hoặc 4:3 nếu có ảnh riêng) – không chiếm hết màn hình */
.hero__slide.has-img { min-height: 0; aspect-ratio: 3 / 1; }
.hero__slide picture { position: absolute; inset: 0; }
.hero__text h2 { font-size: clamp(20px, 2.6vw, 30px); }
.hero__link { position: absolute; inset: 0; }
.hero__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; border: 0; background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--text); display: grid; place-items: center; cursor: pointer; box-shadow: var(--shadow); opacity: 0; transition: opacity .2s, background .2s; z-index: 2; }
.hero__nav--prev { left: 12px; }
.hero__nav--next { right: 12px; }
.hero:hover .hero__nav, .hero__nav:focus-visible { opacity: 1; }
.hero__nav:hover { background: var(--surface); }
.hero__dots { z-index: 2; }
.hero__dots button { transition: width .3s var(--ease-out), background .2s; }
@media (hover: none) { .hero__nav { display: none; } }
@media (max-width: 640px) {
  .hero__slide.has-img { aspect-ratio: 16 / 9; }
  .hero__slide.has-mimg { aspect-ratio: 4 / 3; }
  .hero__slide.has-mimg { align-items: flex-start; } /* ảnh điện thoại: sản phẩm ở nửa dưới, chữ ở trên */
  .hero__slide.has-img .hero__text { margin: 12px; padding: 12px 14px; max-width: 78%; }
  .hero__slide.has-img .hero__text p { display: none; }
  .hero__slide.has-img .hero__text .btn { padding: 9px 16px; font-size: var(--fs-ui); }
}

/* Banner phụ: lưới 2–3 ô */
.sub-banners { display: grid; gap: 14px; margin-top: 14px; grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); }
.sub-banners--1 { --n: 1; } .sub-banners--2 { --n: 2; } .sub-banners--3 { --n: 3; }
.sub-bn { position: relative; display: block; aspect-ratio: 2 / 1; border-radius: var(--radius-lg); overflow: hidden; background: var(--secondary-soft); color: var(--text); text-decoration: none !important; }
.sub-bn picture, .sub-bn img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sub-bn img { transition: transform .5s var(--ease-out); }
.sub-bn:hover img { transform: scale(1.04); }
.sub-bn__text { position: absolute; left: 12px; bottom: 12px; max-width: calc(100% - 24px); background: color-mix(in srgb, var(--bg) 92%, transparent); border-radius: var(--radius); padding: 8px 12px; display: grid; gap: 2px; }
.sub-bn__text b { font: 800 var(--fs-base)/1.3 var(--font-head); }
.sub-bn__text small { color: var(--text-2); font-size: var(--fs-xs); }
.sub-bn__text em { font-style: normal; color: var(--primary); font-weight: 700; font-size: var(--fs-sm); }
@media (max-width: 640px) { .sub-banners { grid-template-columns: 1fr 1fr; gap: 10px; } .sub-banners--1 { grid-template-columns: 1fr; } .sub-bn__text small { display: none; } }

/* Flash Sale: nền vàng pastel, đỏ/cam chỉ cho giá và trạng thái khẩn */
.flash { margin-top: 28px; padding: 18px; border-radius: var(--radius-xl); background: var(--accent); }
.flash__head { display: flex; align-items: center; gap: 12px 18px; flex-wrap: wrap; margin-bottom: 14px; }
.flash__title { display: flex; align-items: center; gap: 10px; }
.flash__title h2 { margin: 0; font-size: clamp(19px, 2.2vw, 24px); text-transform: uppercase; letter-spacing: .02em; }
.flash__title small { color: var(--text-2); font-size: var(--fs-sm); }
.flash__badge { width: 40px; height: 40px; border-radius: var(--radius); background: var(--sale); color: var(--on-color); display: grid; place-items: center; }
.flash__badge .flash-ico { width: 22px; height: 22px; }
.flash__timer { display: flex; align-items: center; gap: 8px; font-size: var(--fs-ui); color: var(--text-2); }
.countdown { display: inline-flex; align-items: center; gap: 4px; font-variant-numeric: tabular-nums; }
.countdown b { min-width: 34px; height: 34px; padding: 0 6px; border-radius: var(--radius-sm); background: var(--text); color: var(--on-color); display: grid; place-items: center; font: 800 var(--fs-md) var(--font-head); }
.countdown i { font-style: normal; font-weight: 800; color: var(--text); }
.flash__all { margin-left: auto; font-weight: 700; white-space: nowrap; }
.flash.is-ended .countdown b { background: var(--disabled); }
.flash__ended { margin: 12px 0 0; padding: 10px 14px; border-radius: var(--radius); background: color-mix(in srgb, var(--surface) 70%, transparent); color: var(--text-2); }
.flash__track-wrap { position: relative; }
.flash__track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 3 * 12px) / 4); gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 2px; }
.flash__track::-webkit-scrollbar { display: none; }
.flash__nav { position: absolute; top: 40%; z-index: 2; width: 38px; height: 38px; border-radius: 50%; border: 0; background: var(--surface); color: var(--text); box-shadow: var(--shadow); display: grid; place-items: center; cursor: pointer; transition: opacity .2s; }
.flash__nav--prev { left: -10px; }
.flash__nav--next { right: -10px; }
.flash__nav:disabled { opacity: 0; pointer-events: none; }
.fcard { scroll-snap-align: start; background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s var(--ease-out); }
.fcard:hover { box-shadow: var(--shadow); }
.fcard__img { position: relative; aspect-ratio: 1; background: var(--surface-2); overflow: hidden; display: block; }
.fcard__img img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s var(--ease-out); }
.fcard:hover .fcard__img img { transform: scale(1.05); }
.fcard__body { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.fcard__name { font: 600 var(--fs-ui)/1.4 var(--font); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.8em; }
.fcard__name a { color: var(--text); }
.fcard__var { color: var(--muted); font-size: var(--fs-xs); margin-top: -4px; }
.fcard__price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-top: auto; }
.fcard__price b { color: var(--sale); font: 800 var(--fs-price) var(--font-head); font-variant-numeric: tabular-nums; }
.fcard__price s { color: var(--muted); font-size: var(--fs-sm); }
.fcard__bar { position: relative; height: 20px; border-radius: var(--radius-pill); background: var(--sale-soft); overflow: hidden; }
.fcard__bar span { position: absolute; inset: 0 auto 0 0; background: var(--sale); border-radius: var(--radius-pill); }
.fcard__bar em { position: relative; display: block; text-align: center; font: 700 var(--fs-xs)/20px var(--font); font-style: normal; color: var(--text); }
.fcard__stock { color: var(--text-2); font-size: var(--fs-xs); }
.fcard.is-soldout .fcard__img img { opacity: .55; }
@media (max-width: 860px) { .flash__track { grid-auto-columns: calc((100% - 2 * 12px) / 3); } .flash__nav { display: none; } }
@media (max-width: 560px) {
  .flash { padding: 14px 12px; border-radius: var(--radius-lg); }
  .flash__track { grid-auto-columns: 44%; gap: 10px; }
  .flash__all { margin-left: 0; }
  .countdown b { min-width: 30px; height: 30px; font-size: var(--fs-base); }
  .fcard__add { padding: 8px 6px; font-size: var(--fs-sm); white-space: nowrap; }
  .fcard__body { padding: 8px 9px 10px; }
}

/* Nhãn Flash Sale ở thẻ sản phẩm và trang chi tiết */
.flash-ico { width: 14px; height: 14px; vertical-align: -2px; }
.badge--flash { display: inline-flex; align-items: center; gap: 2px; }
.pd__flash { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; color: var(--sale); font-weight: 700; font-size: var(--fs-ui); margin-bottom: 4px; }
.countdown--inline { background: var(--text); color: var(--on-color); border-radius: var(--radius-sm); padding: 1px 7px; font: 700 var(--fs-sm) var(--font); }

/* Nút thêm giỏ trên thẻ: luôn hiện (điện thoại không cần rê chuột), máy tính nổi bật khi rê */
.card .card__add { gap: 6px; font-size: var(--fs-sm); }
@media (hover: hover) { .card:hover .card__add { background: var(--primary); color: var(--on-color); } }

/* Giỏ hàng nhanh: ngăn kéo bên phải (điện thoại: từ dưới lên) */
.mc { border: 0; padding: 0; margin: 0 0 0 auto; height: 100dvh; max-height: 100dvh; width: min(420px, 100%); background: transparent; color: var(--text); }
.mc::backdrop { background: var(--overlay); }
.mc[open]::backdrop { animation: fade-in .2s ease; }
.mc__box { height: 100%; background: var(--surface); display: flex; flex-direction: column; box-shadow: var(--shadow-lg); }
.mc[open] .mc__box { animation: drawer-in .3s var(--ease-out); }
.mc.is-closing .mc__box { animation: drawer-out .2s ease-in forwards; }
.mc.is-closing::backdrop { animation: fade-out .2s ease-in forwards; }
@keyframes drawer-in { from { transform: translateX(100%); } }
@keyframes drawer-out { to { transform: translateX(100%); } }
.mc__head { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; padding-top: calc(16px + env(safe-area-inset-top, 0px)); border-bottom: 1px solid var(--border); }
.mc__head h2 { margin: 0; font-size: var(--fs-lg); }
.mc__lines { flex: 1; overflow-y: auto; padding: 4px 18px; overscroll-behavior: contain; }
.mc__line { display: grid; grid-template-columns: 60px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: var(--fs-ui); }
.mc__line img { width: 60px; height: 60px; border-radius: var(--radius); object-fit: cover; background: var(--surface-2); }
.mc__line a { color: var(--text); font-weight: 600; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.mc__line small, .mc__price { display: block; color: var(--muted); font-size: var(--fs-sm); }
.mc__line.is-new { animation: new-line 1.6s ease; }
@keyframes new-line { 0%, 40% { background: var(--secondary-soft); } 100% { background: transparent; } }
.mc__added { display: inline-block; margin-top: 2px; font-size: var(--fs-xs); font-weight: 700; color: var(--success); }
.mc__flash { font-style: normal; font-size: var(--fs-xs); font-weight: 700; color: var(--sale); }
.mc__foot { border-top: 1px solid var(--border); padding: 14px 18px; padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px)); display: grid; gap: 10px; }
.mc__links { display: flex; justify-content: space-between; font-size: var(--fs-ui); }
.mc__skel { height: 72px; margin: 12px 0; border-radius: var(--radius); background: linear-gradient(90deg, var(--surface-2) 25%, var(--bg) 50%, var(--surface-2) 75%); background-size: 200% 100%; animation: skel 1.2s linear infinite; }
@keyframes skel { to { background-position: -200% 0; } }
@media (max-width: 560px) {
  .mc { width: 100%; height: auto; max-height: 88dvh; margin: auto 0 0; }
  .mc__box { border-radius: var(--radius-xl) var(--radius-xl) 0 0; max-height: 88dvh; box-shadow: var(--shadow-lg); }
  .mc[open] .mc__box { animation: sheet-in .32s var(--ease-out); }
  .mc.is-closing .mc__box { animation: sheet-out .2s ease-in forwards; }
}

/* Hộp chọn phân loại */
.pick__prod { display: flex; align-items: center; gap: 12px; }
.pick__prod img { width: 64px; height: 64px; border-radius: var(--radius); object-fit: cover; background: var(--surface-2); }
.pick__opts { border: 0; padding: 0; margin: 0; display: grid; gap: 8px; max-height: 50dvh; overflow-y: auto; }
.pick__opt { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 11px 12px; border: 1.5px solid var(--border); border-radius: var(--radius); cursor: pointer; font-size: var(--fs-ui); transition: border-color .15s, background .15s; }
.pick__opt:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.pick__opt b { color: var(--sale); white-space: nowrap; font-variant-numeric: tabular-nums; }
.pick__opt s { color: var(--muted); font-weight: 400; font-size: var(--fs-xs); }
.pick__opt.is-out { opacity: .5; cursor: not-allowed; }
.pick__opt input { accent-color: var(--primary); }
.toast__act { margin-left: 6px; border: 0; background: color-mix(in srgb, var(--on-color) 16%, transparent); color: var(--on-color); border-radius: var(--radius-pill); padding: 5px 12px; font: 700 var(--fs-sm) var(--font); cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  .mc__skel { animation: none; }
  .mc[open] .mc__box, .mc.is-closing .mc__box, .mc__line.is-new { animation: none; }
}

/* Khung xem trước trong Admin */
.pv-ribbon { position: fixed; top: 0; left: 50%; transform: translateX(-50%); z-index: 100; background: var(--text); color: var(--on-color); font-size: var(--fs-xs); font-weight: 600;
  padding: 4px 14px; border-radius: 0 0 10px 10px; pointer-events: none; opacity: .85; white-space: nowrap; }

/* ===================== Trang chủ (Phase 3) ===================== */
/* Khối chào khi chưa có banner: chữ bên trái, ảnh sản phẩm thật bên phải */
.welcome { margin-top: var(--sp-5); display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: center; gap: var(--sp-8);
  padding: var(--sp-8) var(--sp-8) var(--sp-8) var(--sp-12); border-radius: var(--radius-xl); background: var(--accent-soft); overflow: hidden; }
.welcome__eyebrow { display: inline-block; margin: 0 0 var(--sp-3); padding: 4px 12px; border-radius: var(--radius-pill); background: var(--secondary-soft); color: var(--primary);
  font-size: var(--fs-sm); font-weight: 700; }
.welcome h2 { font-size: clamp(26px, 3.6vw, 40px); line-height: 1.2; margin-bottom: var(--sp-3); }
.welcome__text > p:not(.welcome__eyebrow) { color: var(--text-2); font-size: var(--fs-md); max-width: 460px; margin: 0 0 var(--sp-6); }
.welcome__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.welcome__shots { display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: 1fr 1fr; gap: var(--sp-3); aspect-ratio: 5 / 4; }
.welcome__shots--1 { grid-template-columns: 1fr; grid-template-rows: 1fr; aspect-ratio: 1; max-width: 360px; justify-self: end; }
.welcome__shots--2 { grid-template-rows: 1fr; aspect-ratio: 12 / 7; }
.welcome__shot { display: block; overflow: hidden; border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
.welcome__shot:first-child { grid-row: 1 / -1; }
.welcome__shot img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease-out); }
.welcome__shot:hover img { transform: scale(1.04); }

/* Banner carousel: nút CTA rõ trên mọi ảnh */
.hero__text .btn { margin-top: var(--sp-2); }

/* Cam kết: cả ô bấm được, dẫn tới chính sách */
.perks .perk { color: var(--text-2); text-decoration: none; }
.perks .perk b { color: var(--text); }

/* Lối tắt danh mục: ô tròn đồng bộ, điện thoại vuốt ngang */
.qcats { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: var(--sp-3); }
.qcat { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: var(--sp-4) var(--sp-2); border-radius: var(--radius-lg); background: var(--surface);
  border: 1px solid var(--border); color: var(--text); text-align: center; text-decoration: none !important; transition: border-color var(--dur-fast), box-shadow var(--dur); }
.qcat:hover { border-color: color-mix(in srgb, var(--primary) 35%, #fff); box-shadow: var(--shadow-sm); }
.qcat__img { width: 76px; height: 76px; margin-bottom: var(--sp-2); border-radius: 50%; overflow: hidden; display: grid; place-items: center; background: var(--accent-soft);
  color: var(--primary); font: 800 26px var(--font-head); }
.qcat__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease-out); }
.qcat:hover .qcat__img img { transform: scale(1.08); }
.qcat__img svg, .qcat__img .flash-ico { width: 32px; height: 32px; }
.qcat--sale .qcat__img { background: var(--sale-soft); color: var(--sale); }
.qcat b { font-size: var(--fs-ui); line-height: 1.35; }
.qcat small { color: var(--muted); font-size: var(--fs-xs); }

/* Dải sản phẩm trượt ngang */
.rail__ctrl { display: flex; align-items: center; gap: var(--sp-2); }
.rail__ctrl a { margin-right: var(--sp-2); font-weight: 600; white-space: nowrap; }
.rail__btn { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); display: grid; place-items: center;
  cursor: pointer; transition: background var(--dur-fast), border-color var(--dur-fast), opacity var(--dur-fast); }
.rail__btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.rail__btn:disabled { opacity: .35; cursor: default; }
.rail.is-static .rail__btn { display: none; }
.rail__track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 3 * var(--gap-grid)) / 4); gap: var(--gap-grid); overflow-x: auto;
  scroll-snap-type: x mandatory; scrollbar-width: none; padding: 2px 2px 6px; margin: -2px; overscroll-behavior-x: contain; }
.rail__track::-webkit-scrollbar { display: none; }
.rail__track > * { scroll-snap-align: start; }
.section.rail { padding-bottom: calc(var(--section) - 6px); }

/* Cẩm nang */
.post-card__img { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--accent-soft); }
.post-card__img img { width: 100%; height: 100%; }
.post-card__body { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.post-card time { color: var(--muted); font-size: var(--fs-xs); }
.post-card h3 { margin: 0; }
.post-card__more { margin-top: auto; padding-top: var(--sp-2); color: var(--primary); font-weight: 600; font-size: var(--fs-ui); }

/* Footer 5 cột */
.footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1fr 1.3fr; gap: var(--sp-6); }
.footer h3 { margin-bottom: var(--sp-3); }
.footer ul { gap: var(--sp-2); }
.footer a { color: var(--on-dark); text-decoration: none; transition: color var(--dur-fast); }
.footer a:hover { color: var(--on-color); text-decoration: underline; }
.footer__about p { margin: 0 0 var(--sp-2); }
.footer__muted { color: var(--on-dark-muted); font-size: var(--fs-sm); }
.footer__social { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-3); }
.footer__social a { padding: 6px 12px; border-radius: var(--radius-pill); border: 1px solid color-mix(in srgb, var(--on-dark) 30%, transparent); font-size: var(--fs-sm); }
.footer__social a:hover { background: color-mix(in srgb, var(--on-color) 10%, transparent); text-decoration: none; }

@media (max-width: 1024px) {
  .welcome { padding: var(--sp-8); gap: var(--sp-6); }
  .rail__track { grid-auto-columns: calc((100% - 2 * var(--gap-grid)) / 3); }
  .footer__grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer__about { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .welcome { grid-template-columns: 1fr; padding: var(--sp-6) var(--sp-5); gap: var(--sp-5); }
  .welcome__shots { aspect-ratio: 16 / 10; }
  .welcome__cta .btn { flex: 1 1 0; min-height: 46px; padding: 10px 8px; font-size: var(--fs-ui); white-space: nowrap; }
  .qcats { display: flex; overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: none; margin: 0 calc(-1 * var(--gutter)); padding: 2px var(--gutter) 6px; }
  .qcats::-webkit-scrollbar { display: none; }
  .qcat { flex: 0 0 112px; scroll-snap-align: start; padding: var(--sp-3) var(--sp-2); }
  .qcat__img { width: 64px; height: 64px; }
  .rail__track { grid-auto-columns: 44%; margin: 0 calc(-1 * var(--gutter)); padding: 2px var(--gutter) 6px; scroll-padding-inline: var(--gutter); }
  .rail__btn { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) { .footer__grid > :last-child { grid-column: 1 / -1; } }
@media (prefers-reduced-motion: reduce) { .welcome__shot:hover img, .qcat:hover .qcat__img img { transform: none; } }

/* Trang Khuyến mại khi không có Flash Sale */
.flash-empty { display: flex; align-items: center; gap: var(--sp-4); margin-top: var(--sp-5); padding: var(--sp-4) var(--sp-5); border-radius: var(--radius-lg); background: var(--accent-soft); border: 1px dashed color-mix(in srgb, var(--sale) 35%, #fff); }
.flash-empty p { margin: 2px 0 0; font-size: var(--fs-ui); }

/* ===================== Phase 5: thẻ sản phẩm + trang danh sách ===================== */
/* Thẻ sản phẩm dùng chung */
.card__img { display: grid; place-items: center; }
.card__noimg { display: grid; justify-items: center; gap: 6px; color: var(--muted); font-size: var(--fs-xs); }
.card__tags { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; flex-wrap: wrap; gap: 4px; pointer-events: none; }
.card__tags .badge { position: static; }
.badge--best { background: var(--accent); color: var(--text); }
.card.is-out .card__img img { opacity: .5; filter: grayscale(.4); }
.card__meta { color: var(--muted); font-size: var(--fs-xs); margin-top: -2px; }
.card__stock { color: var(--warning); font-size: var(--fs-xs); font-weight: 600; }
.price--contact { color: var(--primary) !important; }
.card .card__add { margin-top: 2px; }
.card .btn--ghost.card__add { border-width: 1.5px; }

/* Thanh trên danh sách: số sản phẩm · Bộ lọc · Sắp xếp */
.toolbar__count { color: var(--muted); }
.toolbar__count b { color: var(--text); }
.toolbar__actions { display: flex; gap: var(--sp-2); align-items: center; }
.count-dot { min-width: 20px; height: 20px; padding: 0 6px; border-radius: var(--radius-pill); background: var(--primary); color: var(--on-color); font-size: var(--fs-xs); display: inline-grid; place-items: center; }
.active-filters { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin: -4px 0 var(--sp-4); }
.af { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: var(--radius-pill); background: var(--primary-soft); color: var(--primary);
  font-size: var(--fs-sm); font-weight: 600; text-decoration: none !important; transition: background var(--dur-fast); }
.af span { font-size: 16px; line-height: 1; }
.af:hover { background: color-mix(in srgb, var(--primary) 18%, #fff); }
.af--clear { background: none; color: var(--muted); text-decoration: underline !important; }
.grid--listing { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

/* Bộ lọc */
.filters { padding: 0; overflow: hidden; }
.filters__head { display: none; }
.filters__body { padding: var(--sp-2) var(--sp-4); max-height: calc(100vh - 220px); overflow-y: auto; overscroll-behavior: contain; }
.filters fieldset { border: 0; margin: 0; padding: var(--sp-3) 0; border-bottom: 1px solid var(--border); }
.filters fieldset:last-child { border-bottom: 0; }
.filters legend { padding: 0; margin-bottom: var(--sp-2); font: 700 var(--fs-ui) var(--font-head); color: var(--text); }
.filters li a { display: flex; justify-content: space-between; gap: 8px; }
.filters li a small { color: var(--muted); }
.filters__foot { display: flex; gap: var(--sp-2); padding: var(--sp-3) var(--sp-4); border-top: 1px solid var(--border); background: var(--surface); }
.filters__foot .btn { flex: 1; min-height: 40px; padding: 8px 12px; }
.price-quick, .pill-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--sp-2); }
.filters fieldset > .pill-opt { margin: 0 6px 6px 0; }
.pill-opt { display: inline-flex !important; padding: 0 !important; cursor: pointer; }
.pill-opt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.pill-opt span { padding: 5px 11px; border-radius: var(--radius-pill); border: 1.5px solid var(--border-strong); background: var(--surface); font-size: var(--fs-sm); color: var(--text-2);
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast); }
.pill-opt:hover span { border-color: var(--primary); }
.pill-opt input:checked + span { background: var(--primary); border-color: var(--primary); color: var(--on-color); font-weight: 600; }
.pill-opt input:focus-visible + span { box-shadow: var(--focus); }
.check-opt { min-height: 32px; }
.filters-overlay { display: none; }

/* Trạng thái không có kết quả */
.empty--rich { display: grid; justify-items: center; gap: var(--sp-2); padding: var(--sp-12) var(--sp-4); }
.empty--rich svg { color: var(--primary); opacity: .6; }
.empty--rich h2 { margin: 0; font-size: var(--fs-lg); color: var(--text); }
.empty--rich p { margin: 0; max-width: 460px; }
.empty__cta { display: flex; flex-wrap: wrap; gap: var(--sp-2); justify-content: center; margin-top: var(--sp-2); }

/* Máy tính bảng + điện thoại: bộ lọc là ngăn kéo trượt từ phải */
@media (max-width: 1024px) {
  .listing { grid-template-columns: minmax(0, 1fr); }
  .filter-toggle { display: inline-flex; }
  .filters { position: fixed; inset: 0 0 0 auto; z-index: 70; width: min(380px, 90vw); display: flex; flex-direction: column; border: 0; border-radius: 0;
    box-shadow: var(--shadow-lg); transform: translateX(100%); transition: transform .28s var(--ease-out); top: 0; }
  .filters.is-open { transform: none; }
  .filters__head { display: flex; justify-content: space-between; align-items: center; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--border); }
  .filters__head b { font: 800 var(--fs-lg) var(--font-head); }
  .filters__body { flex: 1; max-height: none; }
  .filters__foot { padding-bottom: calc(var(--sp-3) + env(safe-area-inset-bottom, 0px)); }
  .filters__foot .btn { min-height: 46px; }
  .pill-opt span { padding: 8px 14px; }
  .filters-overlay { display: block; position: fixed; inset: 0; z-index: 65; background: var(--overlay); animation: fade-in .2s ease; }
  .filters-overlay[hidden] { display: none; }
  .grid--listing { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .grid--listing { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar { position: sticky; top: 108px; z-index: 20; margin: 0 calc(-1 * var(--gutter)) var(--sp-3); padding: var(--sp-2) var(--gutter); background: var(--bg); }
  .toolbar__actions { flex: 1; justify-content: flex-end; }
  .toolbar__actions .btn, .toolbar__actions select { min-height: 40px; }
  .card__tags { top: 6px; left: 6px; right: 6px; }
  .card .card__add span { font-size: var(--fs-xs); }
}

/* ===================== Phase 6: trang chi tiết sản phẩm ===================== */
.pd { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: var(--sp-8); align-items: start; }
.gallery { position: sticky; top: 130px; }
.gallery__main { position: relative; display: grid; place-items: center; }
.gallery__track { display: flex; width: 100%; height: 100%; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
.gallery__track::-webkit-scrollbar { display: none; }
.gallery__track:focus-visible { outline-offset: -3px; }
.gallery__slide { flex: 0 0 100%; scroll-snap-align: start; border: 0; padding: 0; background: var(--surface); cursor: zoom-in; }
.gallery__slide img { width: 100%; height: 100%; object-fit: contain; }
.gallery__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; border: 0; display: grid; place-items: center; cursor: pointer;
  background: color-mix(in srgb, var(--surface) 90%, transparent); color: var(--text); box-shadow: var(--shadow-sm); opacity: 0; transition: opacity var(--dur), background var(--dur-fast); }
.gallery__nav--prev { left: 10px; }
.gallery__nav--next { right: 10px; }
.gallery__main:hover .gallery__nav, .gallery__nav:focus-visible { opacity: 1; }
.gallery__count, .gallery__hint { position: absolute; bottom: 10px; padding: 3px 10px; border-radius: var(--radius-pill); background: color-mix(in srgb, var(--text) 70%, transparent);
  color: var(--on-color); font-size: var(--fs-xs); font-weight: 600; pointer-events: none; }
.gallery__count { right: 10px; }
.gallery__hint { left: 10px; display: inline-flex; align-items: center; gap: 4px; opacity: 0; transition: opacity var(--dur); }
.gallery__main:hover .gallery__hint { opacity: 1; }
.gallery__noimg { font-size: var(--fs-ui); }
.gallery__thumbs { scroll-behavior: smooth; scrollbar-width: thin; }
.gallery__thumbs button { flex-basis: 76px; height: 76px; border-color: var(--border); }
.gallery__thumbs button:hover { border-color: color-mix(in srgb, var(--primary) 45%, #fff); }
.gallery__thumbs img { object-fit: contain; background: var(--surface); }
@media (hover: none) { .gallery__nav, .gallery__hint { display: none; } }

.pd__info h1 { margin-bottom: var(--sp-2); }
.pd__price { padding: var(--sp-4) var(--sp-5); }
.pd__price-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; }
.pd__price-row s { margin-left: 0; }
.pd__off { position: static; align-self: center; }
.pd__stock { margin: var(--sp-2) 0 0; font-size: var(--fs-ui); font-weight: 600; color: var(--success); display: flex; align-items: center; gap: 6px; }
.pd__stock::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.pd__stock.is-out { color: var(--error); }
.pd__keys { list-style: none; margin: 0 0 var(--sp-4); padding: 0; display: grid; gap: 4px; font-size: var(--fs-ui); }
.pd__keys li { display: flex; gap: var(--sp-2); }
.pd__keys span { color: var(--muted); min-width: 110px; }
.opt__label b { color: var(--primary); }
.opt__values button { min-height: 40px; }
.opt.is-missing .opt__values button:not(:disabled) { border-color: var(--error); }
.opt__err { margin: 0; color: var(--error); font-size: var(--fs-sm); font-weight: 600; }
.opt__err:empty { display: none; }
.buy-row .btn--add { flex: 0 1 auto; }
.pd__assure { list-style: none; margin: var(--sp-4) 0 0; padding: var(--sp-3) var(--sp-4); border: 1px dashed var(--border-strong); border-radius: var(--radius); display: grid; gap: 6px;
  font-size: var(--fs-sm); color: var(--text-2); }
.pd__assure li::before { content: '✓'; color: var(--success); font-weight: 700; margin-right: 6px; }

/* Tab thông tin */
.pd-tabs { margin-top: var(--sp-8); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.pd-tabs__bar { display: flex; gap: 2px; padding: 0 var(--sp-4); border-bottom: 1px solid var(--border); overflow-x: auto; scrollbar-width: none; }
.pd-tabs__bar::-webkit-scrollbar { display: none; }
.pd-tabs__bar [role=tab] { flex-shrink: 0; min-height: 50px; padding: 0 var(--sp-4); border: 0; border-bottom: 3px solid transparent; background: none; color: var(--muted);
  font: 700 var(--fs-base) var(--font-head); cursor: pointer; transition: color var(--dur-fast), border-color var(--dur-fast); }
.pd-tabs__bar [role=tab]:hover { color: var(--text); }
.pd-tabs__bar [aria-selected="true"] { color: var(--primary); border-bottom-color: var(--primary); }
.pd-tabs__bar [role=tab]:focus-visible { outline-offset: -4px; }
.pd-tabs__panel { padding: var(--sp-5) var(--sp-6) var(--sp-6); }
.pd-tabs.is-tabbed .pd-tabs__title { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.pd-tabs__title { font-size: var(--fs-xl); }
.pd-desc { max-width: 820px; line-height: 1.75; }
.pd-desc.is-clamped { max-height: 560px; overflow: hidden; -webkit-mask-image: linear-gradient(#000 75%, transparent); mask-image: linear-gradient(#000 75%, transparent); }
.pd-desc__more { margin-top: var(--sp-3); }
.pd-policy { margin: 0; padding-left: 18px; display: grid; gap: var(--sp-2); }

/* Phóng to ảnh */
.zoom { width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(10, 18, 17, .94); display: none; place-items: center; }
.zoom[open] { display: grid; }
.zoom::backdrop { background: transparent; }
.zoom img { max-width: 94vw; max-height: 88dvh; object-fit: contain; border-radius: var(--radius); background: var(--surface); }
.zoom__close, .zoom__nav { position: absolute; width: 48px; height: 48px; border-radius: 50%; border: 0; background: color-mix(in srgb, var(--surface) 92%, transparent); color: var(--text);
  display: grid; place-items: center; cursor: pointer; }
.zoom__close { top: 14px; right: 14px; }
.zoom__nav--prev { left: 14px; top: 50%; transform: translateY(-50%); }
.zoom__nav--next { right: 14px; top: 50%; transform: translateY(-50%); }
.zoom__count { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); color: var(--on-color); font-weight: 600; }

/* Thanh mua dính đáy: giá + giỏ + Mua ngay; chỉ hiện khi đã cuộn qua khu mua hàng */
.sticky-buy__price { display: flex; flex-direction: column; justify-content: center; line-height: 1.2; min-width: 0; margin-right: auto; }
.sticky-buy__price small { color: var(--muted); font-size: var(--fs-xs); }
.sticky-buy__price b { color: var(--sale); font: 800 var(--fs-md) var(--font-head); white-space: nowrap; }
@media (max-width: 1024px) {
  .pd { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--sp-6); }
}
@media (max-width: 860px) {
  .pd { grid-template-columns: minmax(0, 1fr); }
  .gallery { position: static; }
  .gallery__thumbs button { flex-basis: 60px; height: 60px; }
  .sticky-buy { transform: translateY(110%); transition: transform .25s var(--ease-out); box-shadow: 0 -6px 20px rgba(20, 60, 55, .08); }
  .sticky-buy.is-on { transform: none; }
  .sticky-buy .btn--add { flex: 0 0 48px; padding: 0; }
  .sticky-buy .btn--pay { flex: 0 1 46%; }
  .pd-tabs__panel { padding: var(--sp-4); }
  .pd-tabs__bar { padding: 0; }
}
@media (max-width: 560px) {
  .buy-row .qty { flex: 0 0 auto; }
  .buy-row .btn--add { flex: 1 1 auto; }
  .buy-row .btn--pay { flex: 1 1 100%; }
  .pd__keys span { min-width: 90px; }
}

/* ===================== Phase 7: giỏ hàng & thanh toán ===================== */
/* Các bước đặt hàng */
.co-steps { list-style: none; display: flex; justify-content: center; gap: var(--sp-2); margin: var(--sp-5) 0 var(--sp-4); padding: 0; font-size: var(--fs-sm); color: var(--muted); }
.co-steps li { display: flex; align-items: center; gap: var(--sp-2); }
.co-steps li + li::before { content: ''; width: 28px; height: 2px; background: var(--border-strong); margin-right: var(--sp-1); }
.co-steps li span, .co-steps a span { width: 24px; height: 24px; border-radius: 50%; display: inline-grid; place-items: center; background: var(--surface-2); border: 1.5px solid var(--border-strong); font-weight: 700; margin-right: 6px; }
.co-steps a { color: inherit; display: inline-flex; align-items: center; }
.co-steps .is-on { color: var(--text); font-weight: 700; }
.co-steps .is-on span { background: var(--primary); border-color: var(--primary); color: var(--on-color); }
.co-steps .is-done span { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
.cart-title { margin: 0 0 var(--sp-4); font-size: var(--fs-h2); }
.cart-title .muted { font: 500 var(--fs-base) var(--font); }
.cart-layout { grid-template-columns: minmax(0, 1fr) 380px; }
.cart-sum { position: sticky; top: 130px; display: grid; gap: var(--sp-3); }
.cart-sum h2 { margin: 0; font-size: var(--fs-lg); display: flex; justify-content: space-between; align-items: baseline; }
.cart-sum__edit { font: 600 var(--fs-sm) var(--font); }
.cart-sum__note { margin: 0; font-size: var(--fs-xs); text-align: center; }
.cart-sum .sum-row.total { margin-top: 0; }
.sum-row--off span:last-child { color: var(--success); font-weight: 600; }
.link-back { display: inline-block; margin-top: var(--sp-3); font-weight: 600; }

/* Dòng hàng */
.cart-lines { padding: var(--sp-2) var(--sp-5); }
.cart-line { grid-template-columns: 88px minmax(0, 1fr) auto; align-items: start; }
.cart-line img, .mc__noimg { width: 88px; height: 88px; border-radius: var(--radius); object-fit: contain; background: var(--surface-2); display: block; }
.cart-line__main { display: grid; gap: 3px; }
.cart-line__name { font-weight: 600; color: var(--text); line-height: 1.4; }
.cart-line__price { font-size: var(--fs-ui); color: var(--text-2); }
.cart-line__price s, .mc__price s { color: var(--muted); font-size: var(--fs-xs); }
.cart-line__hint { font-size: var(--fs-xs); color: var(--warning); font-weight: 600; }
.cart-line__right { gap: var(--sp-2); }
.cart-line__total { font: 800 var(--fs-md) var(--font-head); color: var(--text); }
.cart-line.is-bad, .mc__line.is-bad { background: color-mix(in srgb, var(--error-soft) 60%, transparent); margin: 0 calc(-1 * var(--sp-5)); padding-inline: var(--sp-5); }
.qty--sm button { width: 34px; height: 36px; font-size: var(--fs-md); }
.qty--sm input { width: 40px; height: 36px; font-size: var(--fs-ui); }
.qty button:disabled { opacity: .35; cursor: not-allowed; }
.alert--warn { background: var(--warning-soft); color: var(--warning); }

/* Giỏ trống */
.cart-empty { display: grid; justify-items: center; gap: var(--sp-3); text-align: center; padding: var(--sp-12) var(--sp-4); }
.cart-empty svg { color: var(--primary); opacity: .55; }
.cart-empty h1 { margin: 0; font-size: var(--fs-h2); }
.cart-empty p { margin: 0; max-width: 420px; }
.cart-empty__cta { display: flex; flex-wrap: wrap; gap: var(--sp-2); justify-content: center; }
.cart-empty--sm { padding: var(--sp-8) var(--sp-2); }
.cart-empty--sm b { font-size: var(--fs-md); }

/* Mã giảm giá */
.coupon { display: grid; gap: 4px; margin: 0; }
.coupon__row { display: flex; gap: var(--sp-2); }
.coupon__row input { flex: 1; min-width: 0; text-transform: uppercase; }
.coupon__remove { display: none; }
.coupon.is-applied .coupon__apply { display: none; }
.coupon.is-applied .coupon__remove { display: inline-flex; }
.coupon.is-applied input { background: var(--success-soft); border-color: var(--success); }
.coupon__msg { margin: 0; font-size: var(--fs-sm); }
.coupon__msg:empty { display: none; }
.coupon__msg.is-ok { color: var(--success); font-weight: 600; }
.coupon__msg.is-err { color: var(--error); }

/* Giỏ hàng nhanh */
.mc__line { grid-template-columns: 60px minmax(0, 1fr) auto; align-items: start; }
.mc__line img, .mc__line .mc__noimg { width: 60px; height: 60px; object-fit: contain; }
.mc__info { display: grid; gap: 2px; min-width: 0; }
.mc__row { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-2); margin-top: 4px; }
.mc__row b { font-variant-numeric: tabular-nums; }
.icon-x { width: 32px; height: 32px; border-radius: 50%; border: 0; background: none; color: var(--muted); display: grid; place-items: center; cursor: pointer; transition: background var(--dur-fast), color var(--dur-fast); }
.icon-x:hover { background: var(--error-soft); color: var(--error); }
.mc__actions { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); }
.mc__actions[hidden] { display: none; }
.mc__continue { justify-self: center; }

/* Thanh toán */
.co-sec { border: 1px solid var(--border); margin: 0 0 var(--sp-4); padding: var(--sp-4) var(--sp-5) var(--sp-5); min-width: 0; }
.co-sec legend { display: flex; align-items: center; gap: var(--sp-2); padding: 0 6px; margin-left: -6px; font: 800 var(--fs-lg) var(--font-head); }
.co-sec__n { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: var(--on-color); font-size: var(--fs-ui); }
.field small { font-weight: 400; }
.pay-opt { align-items: center; }
.pay-opt b { font-weight: 600; }
.pay-opt.is-static { cursor: default; border-color: var(--primary); background: var(--primary-soft); }
.pay-opt__ico { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); color: var(--primary); flex-shrink: 0; }
.co-lines { display: grid; gap: var(--sp-3); max-height: 320px; overflow-y: auto; padding: 6px 4px 0 0; }
.co-line { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: var(--sp-3); align-items: center; font-size: var(--fs-ui); }
.co-line__img { position: relative; width: 52px; height: 52px; border-radius: var(--radius-sm); background: var(--surface-2); }
.co-line__img img { width: 52px; height: 52px; object-fit: contain; border-radius: var(--radius-sm); }
.co-line__img i { position: absolute; top: -6px; right: -6px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: var(--radius-pill); background: var(--text-2); color: var(--on-color);
  font: 700 var(--fs-xs)/20px var(--font); text-align: center; font-style: normal; }
.co-line__name { display: grid; line-height: 1.35; }
.co-line__name small { color: var(--muted); font-size: var(--fs-xs); }

/* Đặt hàng thành công */
.done { max-width: 880px; margin: 0 auto var(--sp-8); text-align: left; display: grid; gap: var(--sp-4); }
.done__head { text-align: center; display: grid; justify-items: center; gap: var(--sp-2); }
.done__head h1 { margin: 0; }
.done__head p { margin: 0; color: var(--text-2); }
.done__code { margin-top: var(--sp-2); padding: 8px 18px; border-radius: var(--radius-pill); background: var(--accent-soft); font-size: var(--fs-base); }
.done__code b { font: 800 var(--fs-lg) var(--font-head); letter-spacing: .04em; margin-left: 6px; }
.done__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
.done .panel h2 { font-size: var(--fs-lg); margin: 0 0 var(--sp-3); }
.done__dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px var(--sp-4); margin: 0; font-size: var(--fs-ui); }
.done__dl dt { color: var(--muted); }
.done__dl dd { margin: 0; overflow-wrap: anywhere; }
.done__total { color: var(--sale); font: 800 var(--fs-lg) var(--font-head); }
.pay-status { display: inline-block; padding: 2px 10px; border-radius: var(--radius-pill); font-size: var(--fs-sm); font-weight: 700; }
.pay-status--wait { background: var(--warning-soft); color: var(--warning); }
.pay-status--ok { background: var(--success-soft); color: var(--success); }
.done .bank { margin: var(--sp-3) 0 0; }
.done__cta { display: flex; flex-wrap: wrap; gap: var(--sp-2); justify-content: center; }
.done__note { text-align: center; margin: 0; font-size: var(--fs-sm); }

/* Thanh tổng tiền cố định (điện thoại) */
.total-bar { display: none; }
@media (max-width: 860px) {
  .cart-layout { grid-template-columns: minmax(0, 1fr); }
  .cart-sum { position: static; }
  .total-bar:not([hidden]) { display: flex; align-items: center; gap: var(--sp-3); position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; padding: 10px var(--gutter);
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)); background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -6px 20px rgba(20, 60, 55, .08); }
  .total-bar div { display: grid; line-height: 1.2; margin-right: auto; }
  .total-bar small { color: var(--muted); font-size: var(--fs-xs); }
  .total-bar b { color: var(--sale); font: 800 var(--fs-lg) var(--font-head); }
  .total-bar .btn { min-width: 150px; }
  body:has(.total-bar:not([hidden])) { padding-bottom: 74px; }
  body:has(.total-bar:not([hidden])) .float-contact, body:has(.total-bar:not([hidden])) .to-top { bottom: 88px; }
  .done__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .co-steps { font-size: var(--fs-xs); gap: 4px; }
  .co-steps li + li::before { width: 12px; }
  .cart-lines { padding: var(--sp-1) var(--sp-3); }
  .cart-line { grid-template-columns: 72px minmax(0, 1fr); }
  .cart-line img, .cart-line .mc__noimg { width: 72px; height: 72px; }
  .cart-line.is-bad { margin: 0 calc(-1 * var(--sp-3)); padding-inline: var(--sp-3); }
  .co-sec { padding: var(--sp-3) var(--sp-4) var(--sp-4); }
  .done__dl { grid-template-columns: 1fr; gap: 0; }
  .done__dl dd { margin-bottom: 6px; }
}
.mc { max-width: 100vw; } /* bỏ giới hạn rộng mặc định của <dialog> để giỏ nhanh phủ hết chiều ngang điện thoại */