/* Cửa hàng v2 (0.18, spec §4.5/§4.12): thẻ k-pcard dùng chung + khối trong bài + trang cửa hàng + trang sản phẩm.
   Chỉ biến skin (--c-*, --f-*, --radius, --shadow) và biến tính sẵn của theme (--k-*); giá giảm dùng --k-sale.
   Nền nhạt pha 7%. Mọi chuyển động có tên trong khối prefers-reduced-motion của từng phần. */

/* ===== CARD ===== */
.k-pcard { position: relative; display: flex; flex-direction: column; min-width: 0; background: var(--c-bg); border: 1px solid var(--k-line); border-radius: var(--radius); overflow: hidden; transition: box-shadow .18s; }
.k-pcard:hover { box-shadow: var(--shadow); }
.k-pcard__media { position: relative; display: block; aspect-ratio: 1; background: var(--c-bg); }
.k-pcard__img { width: 100%; height: 100%; object-fit: contain; }
.k-pcard__ph { display: block; width: 100%; height: 100%; background: var(--k-soft) var(--ornament) center / 42% no-repeat; }
.k-pcard__off { position: absolute; top: 8px; left: 8px; padding: 3px 8px; border-radius: var(--k-r-sm); background: var(--k-sale); color: var(--c-on-primary); font: 700 12.5px/1.3 var(--f-body); }
/* Nhãn hết hàng tối như mockup: màu chữ của skin pha trong suốt, chữ nền trang */
.k-pcard__soldout { position: absolute; left: 8px; right: 8px; bottom: 8px; padding: 6px 8px; border-radius: var(--k-r-sm); background: color-mix(in srgb, var(--c-text) 82%, transparent); color: var(--c-bg); font: 700 12.5px/1.3 var(--f-body); text-align: center; }
.k-pcard.is-soldout .k-pcard__img, .k-pcard.is-soldout .k-pcard__ph { filter: grayscale(1); opacity: .6; }
.k-pcard__body { display: flex; flex: 1; flex-direction: column; gap: 6px; min-width: 0; padding: 12px 14px 14px; }
.k-pcard__src { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--c-muted); font: 600 12.5px/1.4 var(--f-body); }
.k-pcard__src .icon { width: 14px; height: 14px; color: var(--c-primary); flex: none; }
.k-pcard__mk { display: inline-grid; place-items: center; flex: none; width: 16px; height: 16px; border-radius: 4px; background: var(--k-soft-2); color: var(--c-primary); font: 700 10px/1 var(--f-body); }
/* Tên sàn dài (AccessTrade) trong thẻ hẹp: tên tự cắt "…", nhãn Sponsored luôn hiện đủ */
.k-pcard__src > span:not([class]) { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.k-pcard__sp { flex: none; margin-left: auto; padding: 1px 6px; border: 1px solid var(--k-line); border-radius: 5px; color: var(--c-muted); font-size: 10.5px; font-weight: 600; }
/* padding/::before: thẻ nằm trong .entry__content thì h3 của bài (chấm accent, lề trái) không được lọt vào;
   hai lớp để thắng mọi luật h3 của theme bất kể thứ tự in stylesheet */
.k-pcard .k-pcard__title { margin: 0; padding: 0; font: 700 15px/1.35 var(--f-head); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.k-pcard .k-pcard__title::before { content: none; }
.k-pcard--grid .k-pcard__title { min-height: 2.7em; }
.k-pcard__title a { color: var(--c-text); text-decoration: none; }
.k-pcard__title a:hover { color: var(--c-primary); }
.k-pcard__excerpt { margin: 0; color: var(--c-muted); font-size: 14px; line-height: 1.5; }
.k-pcard__price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; margin: 0; }
.k-pcard__now { color: var(--c-text); font: 700 16px/1.3 var(--f-body); font-variant-numeric: tabular-nums; }
.k-pcard__now.is-sale { color: var(--k-sale); }
.k-pcard__was { color: var(--c-muted); font-size: 13px; }
.k-pcard__low { margin: 0; color: var(--k-sale); font: 600 12.5px/1.4 var(--f-body); }
.k-pcard__cta { margin-top: auto; padding-top: 4px; }
/* Chữ nút được xuống dòng ở mọi bề rộng ("View on AccessTrade", "Xem trên Shopee" trong thẻ hẹp), icon không bị bóp */
.k-pcard__cta .k-btn { width: 100%; min-height: 40px; padding: 6px 12px; font-size: 14px; line-height: 1.2; white-space: normal; text-align: center; }
.k-pcard__cta .icon { flex: none; width: 16px; height: 16px; }
/* Chỉ trong thẻ: không đổi nút chung của trang có nạp shop-ui */
.k-pcard .k-btn--outline { background: var(--c-bg); color: var(--c-primary); border-color: color-mix(in srgb, var(--c-primary) 45%, var(--c-bg)); }
.k-pcard .k-btn--outline:hover { background: var(--k-soft); border-color: var(--c-primary); }
.k-pcard .k-btn[disabled], .k-pcard .k-btn[disabled]:hover { background: var(--k-soft); color: var(--c-muted); border-color: transparent; cursor: not-allowed; }
.k-pcard--row { flex-direction: row; align-items: flex-start; }
.k-pcard--row .k-pcard__off { top: 6px; left: 6px; padding: 2px 6px; font-size: 11px; }
.k-pcard--row .k-pcard__media { flex: 0 0 96px; width: 96px; height: 96px; margin: 12px 0 12px 12px; border-radius: var(--k-r-sm); overflow: hidden; }
.k-pcard--row .k-pcard__cta .k-btn { width: auto; }
.k-pcard a:focus-visible, .k-pcard button:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
.k-shop-disclose { margin: 10px 0 0; color: var(--c-muted); font-size: 13px; line-height: 1.5; }
/* Điện thoại (2 cột ~170px): cỡ chữ như mockup .m */
@media (max-width: 640px) {
  .k-pcard__body { padding: 10px 10px 12px; }
  .k-pcard .k-pcard__title { font-size: 14px; }
  .k-pcard__now { font-size: 15px; }
  .k-pcard__was { font-size: 12px; }
  .k-pcard__cta .k-btn { gap: 5px; padding: 6px; font-size: 13.5px; }
}
@media (prefers-reduced-motion: reduce) {
  .k-pcard { transition: none; }
}

/* ===== IN ARTICLE (sidebar / mid / end) ===== */
.k-shop-reason { margin: 0 0 10px; color: var(--c-muted); font-size: 13.5px; line-height: 1.5; }
.k-shop-side { display: grid; gap: 10px; padding: 16px; border: 1px solid var(--k-line); border-radius: var(--k-r-lg); background: var(--c-surface); }
.k-shop-side__head, .kit-shop-end__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.k-shop-side__head .section-title { margin: 0; }
.k-shop-side__all, .kit-shop-end__all { flex: none; color: var(--c-primary); font: 700 14px/1.4 var(--f-body); text-decoration: none; }
.k-shop-side__list { display: grid; gap: 10px; }
.k-shop-side .k-pcard--row .k-pcard__media { flex-basis: 72px; width: 72px; height: 72px; }
.k-shop-side .k-pcard .k-pcard__title { font-size: 14px; }
/* Nút gọn trong cột 320px (mockup btn--xs) */
.k-shop-side .k-pcard__cta .k-btn { min-height: 34px; padding: 4px 12px; font-size: 13.5px; }
.kit-shop-mid { margin: 1.6em 0; padding: 14px 16px; border: 1px solid var(--k-line); border-left: 4px solid var(--c-primary); border-radius: var(--k-r-lg); background: var(--k-soft); }
.kit-shop-mid__head { margin: 0 0 4px; color: var(--c-primary); font: 700 12.5px/1.4 var(--f-body); text-transform: uppercase; letter-spacing: .04em; }
.kit-shop-mid .k-pcard { background: var(--c-surface); }
.kit-shop-end { margin: 2.2em 0 0; padding: 16px; border: 1px solid var(--k-line); border-radius: var(--k-r-lg); background: var(--k-soft); }
.kit-shop-end__head .section-title { margin: 0; }
.kit-shop-end__why { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 8px 0 14px; color: var(--c-muted); font-size: 13.5px; }
.kit-shop-end__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
/* Bốn thẻ trong cột bài (~704px) chỉ rộng ~160px: cỡ gọn như thẻ điện thoại để giá cũ còn chung dòng giá mới (giá dài thì xuống dòng, không tràn). */
.kit-shop-end__grid .k-pcard__body { padding: 10px 10px 12px; }
.kit-shop-end__grid .k-pcard .k-pcard__title { font-size: 14px; }
.kit-shop-end__grid .k-pcard__price { gap: 2px 4px; }
.kit-shop-end__grid .k-pcard__now { font-size: 15px; }
.kit-shop-end__grid .k-pcard__was { font-size: 12px; }
.kit-shop-end__grid .k-pcard__cta .k-btn { gap: 5px; padding: 6px; font-size: 13.5px; }
.kit-shop-end__list { display: grid; gap: 10px; }
@media (max-width: 900px) {
  .kit-shop-end__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
/* Dưới 640px: một hàng cuộn ngang có điểm dừng (không bao giờ để trang tràn ngang). */
@media (max-width: 640px) {
  .kit-shop-end { padding: 14px; }
  .kit-shop-end__grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 12px; margin: 0 -14px; padding: 0 14px 6px; scroll-padding-inline: 14px; overscroll-behavior-x: contain; }
  .kit-shop-end__grid > .k-pcard { flex: 0 0 72%; scroll-snap-align: start; }
}
/* [kit_products] khi có shop (B8): thẻ chung trong cột bài. */
.kit-shop-code { margin: 1.4em 0; }
.kit-shop-code--grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.kit-shop-code--list { display: grid; gap: 10px; }

/* ===== SHOP PAGE ===== */
.k-shop { padding-bottom: var(--k-section-y); }
.k-shop-head { display: grid; gap: 8px; margin: 12px 0 24px; }
.k-shop-head__eyebrow { margin: 0; color: var(--c-primary); font: 700 12.5px/1.4 var(--f-body); text-transform: uppercase; letter-spacing: .05em; }
.k-shop-head__title { margin: 0; }
.k-shop-head__lead { margin: 0; color: var(--c-muted); }
.k-shop-search { display: flex; gap: 8px; max-width: 520px; }
.k-shop-search input { flex: 1; min-width: 0; min-height: 40px; padding: 0 14px; border: 1px solid var(--k-line); border-radius: var(--k-pill); background: var(--c-surface); color: var(--c-text); font: 400 15px/1 var(--f-body); }
.k-shop-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin: 0 0 32px; }
.k-shop-tile { display: grid; grid-template-columns: 40px minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 10px; align-items: center; padding: 12px; border: 1px solid var(--k-line); border-radius: var(--k-r-lg); background: var(--c-surface); color: var(--c-text); text-decoration: none; }
.k-shop-tile:hover, .k-shop-tile.is-current { border-color: var(--c-primary); }
.k-shop-tile__ic { grid-row: 1 / 3; display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--k-r-sm); background: var(--k-soft); color: var(--c-primary); font-size: 20px; }
.k-shop-tile__name { font: 700 15px/1.3 var(--f-head); }
.k-shop-tile__n { color: var(--c-muted); font-size: 13px; }
.k-shop-subgroups { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.k-shop-sale { margin: 0 0 36px; }
/* "Đang giảm giá" là MỘT hàng như mockup 04 (5 thẻ ở desktop), thêm thẻ thì cuộn ngang, không đẩy lưới chính xuống. */
.k-shop-row { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 4 * 14px) / 5); gap: 14px; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x proximity; }
.k-shop-row > .k-pcard { scroll-snap-align: start; }
/* Cột hẹp (~180px ở 1100): giá mới + giá cũ 7 chữ số vẫn một dòng; điện thoại thì giá cũ xuống dòng gọn như mockup. */
.k-shop-row .k-pcard__price { gap: 2px 4px; }
.k-shop-row .k-pcard__now { font-size: 15px; }
.k-shop-row .k-pcard__was { font-size: 12px; }
.k-shop .k-head { grid-template-columns: minmax(0, 1fr) auto; margin-bottom: 16px; }
.k-shop .k-head > .k-link { justify-self: end; }
.k-shop-all > .k-head__title { margin: 0 0 14px; }
.k-shop-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 0 0 16px; }
.k-shop-bar__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.k-shop-bar__count { margin: 0 0 0 auto; color: var(--c-muted); font-size: 14px; }
.k-shop-sort { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.k-shop-sort select { min-height: 36px; padding: 0 10px; border: 1px solid var(--k-line); border-radius: var(--k-r-sm); background: var(--c-surface); color: var(--c-text); font: inherit; }
.k-shop-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.k-shop-more { display: flex; justify-content: center; gap: 12px; margin: 28px 0 0; }
.k-shop-empty { padding: 24px; border: 1px dashed var(--k-line); border-radius: var(--k-r-lg); text-align: center; }
.k-sheet { width: min(480px, 100%); max-width: 100%; margin: auto auto 0; padding: 0 0 env(safe-area-inset-bottom); border: 0; border-radius: var(--k-r-lg) var(--k-r-lg) 0 0; background: var(--c-surface); color: var(--c-text); }
.k-sheet::backdrop { background: color-mix(in srgb, var(--c-text) 45%, transparent); }
.k-sheet__head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--k-line); }
.k-sheet__head h2 { margin: 0; font-size: 17px; }
.k-sheet__close { width: 36px; height: 36px; border: 0; border-radius: var(--k-r-sm); background: var(--k-soft); color: var(--c-text); font-size: 22px; cursor: pointer; }
.k-sheet__list { margin: 0; padding: 6px 0; list-style: none; }
.k-sheet__list a { display: block; padding: 12px 16px; color: var(--c-text); text-decoration: none; }
.k-sheet__list a[aria-current] { color: var(--c-primary); font-weight: 700; }
.k-shop-sort__open[hidden] { display: none; }
@media (max-width: 1099px) {
  .k-shop-row { grid-auto-columns: calc((100% - 3 * 14px) / 4); }
}
@media (max-width: 900px) {
  .k-shop-row { grid-auto-columns: calc((100% - 2 * 14px) / 3); }
  .k-shop-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .k-shop-tiles { display: flex; overflow-x: auto; gap: 8px; margin: 0 -16px 24px; padding: 0 16px 4px; scroll-snap-type: x proximity; }
  .k-shop-tile { flex: 0 0 auto; grid-template-columns: 32px auto; padding: 8px 12px; border-radius: var(--k-pill); scroll-snap-align: start; }
  .k-shop-tile__ic { width: 32px; height: 32px; }
  .k-shop-tile__n { display: none; }
  .k-shop-row { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; margin: 0 -16px; padding: 0 16px 6px; }
  .k-shop-row > .k-pcard { flex: 0 0 46%; scroll-snap-align: start; }
  .k-shop-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .k-shop-bar { position: sticky; top: 0; z-index: 20; margin: 0 -16px 12px; padding: 8px 16px; background: var(--c-bg); border-bottom: 1px solid var(--k-line); }
  .k-shop-bar__chips { flex-wrap: nowrap; overflow-x: auto; width: 100%; }
  .kit-sort-js .k-shop-sort { display: none; }
}
@media (min-width: 641px) {
  .k-shop-sort__open { display: none; }
}

/* ===== PRODUCT PAGE ===== */
.k-product { padding-bottom: var(--k-section-y); }
.k-product__top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; margin: 12px 0 40px; }
.k-pgal__main { position: relative; margin: 0; aspect-ratio: 1; border-radius: var(--k-r-lg); overflow: hidden; background: var(--c-surface); border: 1px solid var(--k-line); }
.k-pgal__main img { width: 100%; height: 100%; object-fit: contain; }
.k-pgal__main .k-pcard__off { top: 12px; left: 12px; font-size: 14px; }
.k-pgal__thumbs { display: flex; gap: 8px; margin: 10px 0 0; padding: 0; list-style: none; overflow-x: auto; }
.k-pgal__thumb { padding: 0; width: 64px; height: 64px; border: 2px solid var(--k-line); border-radius: var(--k-r-sm); background: var(--c-surface); overflow: hidden; cursor: pointer; }
.k-pgal__thumb[aria-pressed="true"] { border-color: var(--c-primary); }
.k-pgal__thumb img { width: 100%; height: 100%; object-fit: cover; }
.k-psum { display: grid; align-content: start; gap: 12px; }
.k-psum__src { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0; color: var(--c-muted); font-size: 14px; }
.k-psum__src .icon { width: 16px; height: 16px; color: var(--c-primary); }
.k-psum__src strong { color: var(--c-text); }
.k-psum__src .k-pcard__sp { margin-left: 4px; }
.k-psum__stock { justify-self: start; margin: 0; padding: 2px 10px; border-radius: var(--k-pill); background: var(--k-soft); color: var(--c-primary); font: 700 13px/1.6 var(--f-body); }
.k-psum__title { margin: 0; }
.k-psum__lead { margin: 0; color: var(--c-muted); }
.k-pcard__notify { display: block; margin-top: 6px; font: 600 13px/1.3 var(--f-body); text-align: center; color: var(--c-accent); }
.k-psum__notify { margin: 8px 0 0; font-weight: 600; }
.k-psum__soldout { margin: 0; padding: 10px 14px; border: 1px solid var(--k-line); border-radius: var(--k-r-sm); font-weight: 700; }
.k-pricebox { padding: 14px 16px; border-radius: var(--k-r-lg); background: var(--k-soft); }
.k-pricebox.is-sale { background: color-mix(in srgb, var(--k-sale) 7%, var(--c-surface)); }
.k-pricebox__label, .k-pricebox__note { margin: 0; color: var(--c-muted); font-size: 13px; }
.k-pricebox__row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; margin: 2px 0; }
.k-pricebox__now { font: 700 28px/1.2 var(--f-body); color: var(--c-text); }
.k-pricebox.is-sale .k-pricebox__now, .k-pricebox__save { color: var(--k-sale); }
.k-pricebox__row del { color: var(--c-muted); }
.k-pricebox__off { padding: 2px 8px; border-radius: var(--k-pill); background: var(--k-sale); color: var(--c-on-primary); font: 700 13px/1.4 var(--f-body); }
.k-pricebox__save { margin: 0; font: 700 13.5px/1.4 var(--f-body); }
.k-buy { display: grid; grid-template-columns: auto 1fr 1fr; gap: 10px; align-items: stretch; }
.k-buy--aff { grid-template-columns: 1fr; }
.k-buy .k-btn, .kit-buybar .k-btn { gap: 6px; }
.k-buy .k-btn--outline, .kit-buybar .k-btn--outline { background: var(--c-bg); color: var(--c-primary); border-color: var(--c-primary); }
.k-buy .k-btn--outline:hover, .kit-buybar .k-btn--outline:hover { background: var(--k-soft); }
.k-buy .icon, .kit-buybar .icon { width: 18px; height: 18px; }
.k-buy__go { min-height: 48px; font-size: 16px; }
.kit-buybar__cart.is-added { border-color: var(--c-primary); color: var(--c-primary); }
.k-buy__hint, .k-buy__other { margin: 0; color: var(--c-muted); font-size: 13px; }
.k-qty { display: inline-flex; align-items: stretch; border: 1px solid var(--k-line); border-radius: var(--radius); overflow: hidden; }
.k-qty__btn { width: 40px; border: 0; background: var(--c-surface); color: var(--c-text); font-size: 18px; cursor: pointer; }
.k-qty__in { width: 48px; border: 0; border-inline: 1px solid var(--k-line); background: var(--c-surface); color: var(--c-text); text-align: center; font: 700 15px/1 var(--f-body); -moz-appearance: textfield; }
.k-disclose-box { margin: 0; padding: 10px 12px; border: 1px dashed var(--k-line); border-radius: var(--k-r-sm); color: var(--c-muted); font-size: 13px; line-height: 1.5; }
.k-ptrust { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin: 4px 0 0; padding: 0; list-style: none; }
.k-ptrust li { display: flex; gap: 8px; align-items: flex-start; padding: 10px; border: 1px solid var(--k-line); border-radius: var(--k-r-sm); font-size: 13px; line-height: 1.4; }
.k-ptrust .icon { flex: none; width: 20px; height: 20px; color: var(--c-primary); }
.k-ptrust li > span { display: grid; gap: 2px; color: var(--c-muted); }
.k-ptrust strong { color: var(--c-text); }
.k-product__body { max-width: var(--k-measure); }
.k-pblock { margin: 0 0 28px; padding: 18px 20px; border: 1px solid var(--k-line); border-radius: var(--k-r-lg); background: var(--c-surface); }
.k-pblock h2 { margin: 0 0 12px; font-size: 20px; }
.k-highlights, .k-review ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.k-highlights li { display: flex; gap: 8px; }
.k-highlights .icon { flex: none; width: 18px; height: 18px; margin-top: 3px; color: var(--c-primary); }
.k-review .is-pro .k-review__mark { color: var(--c-primary); }
.k-review .is-con .k-review__mark { color: var(--k-danger); }
.k-review__mark { display: inline-block; width: 1.4em; font-weight: 700; }
.k-fit { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.k-fit__item { display: grid; gap: 4px; padding: 12px; border-radius: var(--k-r-sm); background: var(--k-soft); font-size: 14px; }
.k-fit__ic { font-size: 20px; color: var(--c-primary); }
.k-fit__not { margin: 12px 0 0; padding: 8px 12px; border-radius: var(--k-r-sm); background: var(--k-accent-soft); font-size: 14px; }
.k-specs { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.k-specs th, .k-specs td { padding: 9px 10px; border-bottom: 1px solid var(--k-line); text-align: left; vertical-align: top; }
.k-specs th { width: 36%; color: var(--c-muted); font-weight: 600; }
.k-readmore ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.k-readmore a { display: flex; gap: 12px; align-items: center; color: var(--c-text); text-decoration: none; font-weight: 600; }
.k-readmore img { flex: none; width: 64px; height: 64px; border-radius: var(--k-r-sm); object-fit: cover; }
.k-prelated { margin: 12px 0 0; }
.kit-buybar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); border-top: 1px solid var(--k-line); background: var(--c-surface); box-shadow: var(--shadow); transform: translateY(0); transition: transform .2s; }
.kit-buybar[hidden] { display: none; }
.kit-buybar__price { display: grid; font-size: 13px; }
.kit-buybar__price strong { color: var(--c-text); font-size: 17px; }
.kit-buybar__price.is-sale strong { color: var(--k-sale); }
.kit-buybar__actions { display: flex; gap: 8px; }
.kit-buybar__cart .icon { width: 20px; height: 20px; }
.k-added__line { display: flex; gap: 12px; align-items: center; padding: 12px 16px; }
.k-added__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 16px 16px; }
@media (min-width: 1100px) {
  /* Cùng bề rộng và vị trí với cụm bài viết (--k-measure + --k-gutter + --k-side), căn giữa. Không có cột bên thì một cột. */
  .k-product__lower { display: grid; grid-template-columns: minmax(0, var(--k-measure)); column-gap: var(--k-gutter); justify-content: center; align-items: start; max-width: calc(var(--k-measure) + var(--k-gutter) + var(--k-side)); margin-inline: auto; }
  .k-product__lower--side { grid-template-columns: minmax(0, var(--k-measure)) var(--k-side); justify-content: space-between; }
  .k-product__side { position: sticky; top: 16px; }
}
@media (min-width: 901px) {
  .kit-buybar { display: none; }
  .k-prelated .k-shop-row { grid-auto-columns: calc((100% - 3 * 14px) / 4); }
}
@media (max-width: 900px) {
  .k-product__top { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .k-buy:not(.k-buy--aff) { grid-template-columns: auto 1fr; }
  .k-buy__now { grid-column: 1 / -1; }
  html.kit-buybar-open body { padding-bottom: 72px; }
}
@media (max-width: 640px) {
  .k-ptrust { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .kit-buybar { transition: none; }
}

/* ===== CART DRAWER + CART BODY (cart.js dựng; trang giỏ dùng chung các lớp kit-cart__*) ===== */
.kit-drawer { position: fixed; inset: 0; z-index: 70; }
.kit-drawer[hidden] { display: none; }
.kit-drawer__scrim { position: absolute; inset: 0; background: color-mix(in srgb, var(--c-text) 45%, transparent); opacity: 0; transition: opacity .22s; }
.kit-drawer__panel { position: absolute; top: 0; right: 0; bottom: 0; display: flex; flex-direction: column; width: min(420px, 100vw); background: var(--c-bg); color: var(--c-text); box-shadow: var(--shadow); transform: translateX(100%); transition: transform .22s ease; outline: none; }
.kit-drawer.is-open .kit-drawer__scrim { opacity: 1; }
.kit-drawer.is-open .kit-drawer__panel { transform: none; }
.kit-drawer__head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--k-line); }
.kit-drawer__head h2 { margin: 0; font: 700 20px/1.3 var(--f-head); }
.kit-drawer__count { color: var(--c-muted); font: 600 15px/1 var(--f-body); }
.kit-drawer__close { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 0; border-radius: var(--radius); background: none; color: var(--c-text); cursor: pointer; }
.kit-drawer__close:hover { background: var(--k-soft); }
.kit-drawer__body { flex: 1; min-height: 0; overflow-y: auto; padding: 14px 20px; display: grid; gap: 14px; align-content: start; }
.kit-drawer__foot { padding: 14px 20px 20px; border-top: 1px solid var(--k-line); background: var(--c-bg); }
html.kit-drawer-open { overflow: hidden; }

/* Phần dùng chung (ngăn kéo + trang giỏ) */
.kit-cart__bar { display: grid; gap: 8px; padding: 12px 14px; border-radius: var(--k-r-lg); background: var(--k-soft); }
.kit-cart__bar-text { margin: 0; font: 600 14px/1.4 var(--f-body); }
.kit-cart__bar-track { height: 8px; border-radius: var(--k-pill); background: color-mix(in srgb, var(--c-primary) 18%, var(--c-bg)); overflow: hidden; }
.kit-cart__bar-fill { display: block; height: 100%; border-radius: var(--k-pill); background: var(--c-primary); transition: width .25s; }
.kit-cart__step { display: inline-flex; align-items: center; border: 1px solid var(--k-line); border-radius: var(--radius); overflow: hidden; }
.kit-cart__stepbtn { width: 34px; height: 34px; border: 0; background: var(--c-bg); color: var(--c-text); font: 700 18px/1 var(--f-body); cursor: pointer; }
.kit-cart__stepbtn:hover:not(:disabled) { background: var(--k-soft); }
.kit-cart__stepbtn:disabled { color: var(--c-muted); cursor: not-allowed; }
.kit-cart__step .kit-cart__qty { width: 3.2em; padding: 6px 0; border: 0; border-inline: 1px solid var(--k-line); border-radius: 0; text-align: center; -moz-appearance: textfield; appearance: textfield; }
.kit-cart__step .kit-cart__qty::-webkit-outer-spin-button, .kit-cart__step .kit-cart__qty::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.kit-cart__old { margin-left: 6px; color: var(--c-muted); font-size: .85em; }
.kit-cart__remove { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--c-muted); text-decoration: none; }
.kit-cart__remove:hover { color: var(--k-danger); }
.kit-cart__upsell { display: grid; gap: 8px; padding: 12px; border: 1px dashed var(--k-line); border-radius: var(--k-r-lg); }
.kit-cart__upsell-title { margin: 0; font: 700 13.5px/1.4 var(--f-body); color: var(--c-primary); }
.kit-cart__upsell-row { display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; gap: 12px; align-items: center; }
.kit-cart__save { margin: 0; color: var(--k-sale); font: 600 14px/1.4 var(--f-body); }
.kit-cart__hint { margin: 0; color: var(--c-muted); font-size: 13px; }
.kit-cart__status { margin: 0; color: var(--c-muted); }

/* Trong ngăn kéo (shop.css không nạp ở mọi trang nên dòng giỏ có kiểu riêng ở đây) */
.kit-drawer .kit-cart__lines { margin: 0; padding: 0; list-style: none; }
.kit-drawer .kit-cart__line { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--k-line); }
.kit-drawer .kit-cart__media { display: block; width: 64px; height: 64px; border-radius: var(--k-r-sm); background: var(--k-soft); overflow: hidden; }
.kit-drawer .kit-cart__media img { width: 64px; height: 64px; object-fit: cover; }
.kit-drawer .kit-cart__info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.kit-drawer .kit-cart__title { color: var(--c-text); font: 700 14.5px/1.35 var(--f-head); text-decoration: none; overflow-wrap: anywhere; }
.kit-drawer .kit-cart__price { color: var(--c-muted); font-size: 14px; }
.kit-drawer .kit-cart__controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-top: 2px; }
.kit-drawer .kit-cart__stock { order: 5; flex-basis: 100%; color: var(--c-muted); }
.kit-drawer .kit-cart__sum { margin-left: auto; font-weight: 700; white-space: nowrap; }
.kit-drawer .kit-cart__sold-out { color: var(--k-danger); }
.kit-drawer .kit-cart__line.is-sold-out .kit-cart__title, .kit-drawer .kit-cart__line.is-sold-out .kit-cart__price { color: var(--c-muted); }
.kit-drawer .kit-cart__line.is-sold-out .kit-cart__media { opacity: .55; }
.kit-drawer .kit-cart__foot { display: grid; gap: 8px; }
.kit-drawer .kit-cart__subtotal { display: flex; justify-content: space-between; gap: 12px; margin: 0; }
.kit-drawer .kit-cart__total { font: 700 20px/1.2 var(--f-head); color: var(--c-primary); }
.kit-drawer .kit-cart__checkout { width: 100%; min-height: 46px; margin-top: 4px; }
.kit-drawer .kit-cart__empty { margin: 0; color: var(--c-muted); }
.kit-drawer .kit-notice { margin: 0; }

@media (max-width: 640px) {
  .kit-drawer__panel { width: 100vw; }
  .kit-drawer__foot { position: sticky; bottom: 0; box-shadow: 0 -8px 24px color-mix(in srgb, var(--c-text) 10%, transparent); }
}
@media (prefers-reduced-motion: reduce) {
  .kit-drawer__scrim, .kit-drawer__panel, .kit-cart__bar-fill { transition: none; }
}

/* ===== COMBO (0.20, spec §6.2, mockup 08): thẻ chung + ảnh ghép, nhãn "Combo N món", dòng thành phần, tiết kiệm thật;
   khối "Gồm N sản phẩm", "Có trong combo", hàng "Combo tiết kiệm". Không chuyển động mới. ===== */
.k-pcard--combo { border-color: color-mix(in srgb, var(--c-accent) 30%, var(--k-line)); }
.k-pcard__collage { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-content: center; gap: 2px; width: 100%; height: 100%; background: var(--k-soft); }
.k-pcard__collage--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.k-pcard__collage--1 { grid-template-columns: minmax(0, 1fr); }
.k-pcard__collage > img, .k-pcard__collage > .k-pcard__ph { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; }
.k-pgal__main .k-pcard__collage { position: absolute; inset: 0; }
.k-pcard__more { position: absolute; right: 8px; bottom: 8px; padding: 2px 8px; border-radius: var(--k-pill); background: var(--c-bg); color: var(--c-text); font: 700 12px/1.4 var(--f-body); }
.k-pcard__combo { position: absolute; top: 36px; left: 8px; padding: 3px 8px; border-radius: var(--k-pill); background: var(--k-accent-soft); color: var(--c-text); font: 700 12px/1.3 var(--f-body); }
.k-pcard__media:not(:has(.k-pcard__off)) .k-pcard__combo { top: 8px; }
.k-pcard--row .k-pcard__combo { display: none; }
.k-pcard__parts { margin: 0; color: var(--c-muted); font-size: 12.5px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
.k-pcard__save { margin: 0; color: var(--k-sale); font: 600 13px/1.35 var(--f-body); }
.k-shop-combos { margin: 0 0 36px; }
.k-shop .k-shop-combos .k-head { margin-bottom: 4px; }
.k-shop-combos__lead { margin: 0 0 16px; color: var(--c-muted); font-size: 14px; }
.k-combo-parts ol { display: grid; margin: 0; padding: 0; list-style: none; }
.k-combo-parts li { position: relative; display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 10px; border: 1px solid var(--k-line); border-radius: var(--k-r-lg); background: var(--c-bg); }
.k-combo-parts li + li { margin-top: 26px; }
.k-combo-parts li + li::before { content: "+"; content: "+" / ""; position: absolute; top: -23px; left: 50%; transform: translateX(-50%); color: var(--c-accent); font: 700 20px/1 var(--f-body); }
.k-combo-parts__img { display: block; width: 56px; height: 56px; border-radius: var(--k-r-sm); overflow: hidden; background: var(--k-soft); }
.k-combo-parts__img img, .k-combo-parts__img .k-pcard__ph { width: 56px; height: 56px; object-fit: cover; }
.k-combo-parts__info { display: grid; gap: 2px; min-width: 0; }
.k-combo-parts__title { overflow-wrap: anywhere; }
.k-combo-parts__info .k-link { font-size: 13px; }
.k-combo-parts__price { color: var(--c-muted); font-size: 13.5px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.k-incombo .k-pcard + .k-pcard { margin-top: 10px; }
@media (max-width: 640px) {
  .k-combo-parts li { grid-template-columns: 48px minmax(0, 1fr); }
  .k-combo-parts__img, .k-combo-parts__img img, .k-combo-parts__img .k-pcard__ph { width: 48px; height: 48px; }
  .k-combo-parts__price { grid-column: 2; white-space: normal; }
}