/* Web cancook.vn (QĐ-065) — nhận diện cancook: chỉ #231F20 và trắng cho logo; trang tối giản đen–trắng (brand guide mục 4).
   Ưu tiên điện thoại (375 px), chữ hệ thống (tải nhanh, đủ dấu tiếng Việt), nút ≥ 44 px, vòng focus rõ, tôn trọng giảm chuyển động. */
:root {
  --ink: #231f20; --ink-2: #4a4546; --muted: #666; --line: #e0e0e0; --soft: #f5f5f5; --bg: #fff;
  --ok: #1b6b3a; --warn: #8a5a00; --bad: #b42318; --radius: 10px; --max: 1200px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.55 var(--font); color: var(--ink); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* Đầu trang */
.top { position: sticky; top: 0; z-index: 5; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.logo { display: flex; align-items: center; flex: none; }
.logo img { height: 26px; width: auto; }
.nav { display: flex; gap: 4px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav a { text-decoration: none; padding: 10px 10px; border-radius: 8px; white-space: nowrap; font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--soft); }
.cart-link { position: relative; display: inline-flex; align-items: center; gap: 6px; text-decoration: none; padding: 10px 12px;
  border: 1px solid var(--ink); border-radius: 999px; font-weight: 600; white-space: nowrap; }
.cart-count { min-width: 22px; height: 22px; border-radius: 11px; background: var(--ink); color: #fff; font-size: 13px;
  display: inline-grid; place-items: center; padding: 0 6px; }
.notice-test { background: var(--ink); color: #fff; text-align: center; font-size: 13px; padding: 6px 16px; }

/* Nội dung */
main { min-height: 60vh; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: clamp(26px, 5vw, 40px); margin: 24px 0 8px; }
h2 { font-size: 22px; margin: 32px 0 12px; }
.lead { color: var(--ink-2); font-size: 18px; max-width: 46ch; }
.muted { color: var(--muted); }
.hero { background: var(--soft); border-bottom: 1px solid var(--line); }
.hero-bleed { margin: 0 -16px; padding: 0 16px; }
.hero-in { padding-top: 32px; padding-bottom: 40px; }
.hero h1 { margin-top: 0; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 20px 0 0; padding: 0; list-style: none; color: var(--ink-2); font-size: 15px; }
.hero-badges li::before { content: "✓ "; font-weight: 700; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: var(--radius);
  border: 1px solid var(--ink); background: var(--ink); color: #fff; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { background: #000; }
.btn-ghost { background: #fff; color: var(--ink); }
.btn-ghost:hover { background: var(--soft); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-block { width: 100%; }

.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; padding: 0; list-style: none; }
.chips a { display: inline-block; text-decoration: none; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 15px; }
.chips a[aria-current="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 16px 0 40px; padding: 0; list-style: none; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; } }
@media (min-width: 1040px) { .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.card { display: flex; flex-direction: column; height: 100%; text-decoration: none; }
.card-img { aspect-ratio: 1; background: var(--soft); border-radius: var(--radius); overflow: hidden; display: grid; place-items: center; }
.card-img img { width: 100%; height: 100%; object-fit: contain; }
.card-img .noimg { color: var(--muted); font-size: 13px; padding: 12px; text-align: center; }
.card-name { margin: 10px 0 4px; font-size: 15px; font-weight: 500; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card:hover .card-name { text-decoration: underline; }
.price { font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.stock { font-size: 13px; }
.stock.in { color: var(--ok); }
.stock.out { color: var(--bad); }

/* Trang sản phẩm */
.crumbs { font-size: 14px; color: var(--muted); margin: 16px 0 0; }
.crumbs a { color: var(--muted); }
.pdp { display: grid; gap: 24px; margin: 16px 0 40px; }
@media (min-width: 860px) { .pdp { grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: start; } }
.gallery-main { aspect-ratio: 1; background: var(--soft); border-radius: var(--radius); overflow: hidden; display: grid; place-items: center; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.thumbs { display: flex; gap: 8px; margin-top: 8px; overflow-x: auto; }
.thumbs img { width: 72px; height: 72px; object-fit: contain; background: var(--soft); border-radius: 8px; }
.buy h1 { margin-top: 0; font-size: clamp(22px, 4vw, 30px); }
.buy .price { font-size: 26px; margin: 8px 0; }
.variants { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; padding: 0; border: 0; }
.variants legend { font-weight: 600; margin-bottom: 8px; padding: 0; }
.variants label { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.variants input { accent-color: var(--ink); }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: var(--radius); }
.qty button { width: 44px; height: 46px; border: 0; background: none; font-size: 20px; cursor: pointer; color: var(--ink); }
.qty input { width: 48px; height: 46px; border: 0; text-align: center; font: inherit; }
.buy-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 16px 0; }
.buy-row .btn { flex: 1 1 200px; }
.assure { margin: 16px 0; padding: 14px 16px; background: var(--soft); border-radius: var(--radius); font-size: 15px; }
.assure p { margin: 4px 0; }
.desc { max-width: 70ch; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 18px;
  border-radius: 999px; font-size: 15px; box-shadow: 0 6px 24px rgba(0,0,0,.18); z-index: 20; }

/* Giỏ hàng / đặt hàng */
.two { display: grid; gap: 24px; margin: 8px 0 48px; }
@media (min-width: 900px) { .two { grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; } }
.box { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.lines { list-style: none; margin: 0; padding: 0; }
.line { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.line:last-child { border-bottom: 0; }
.line img, .line .ph { width: 64px; height: 64px; object-fit: contain; background: var(--soft); border-radius: 8px; }
.line-name { font-weight: 500; }
.line-actions { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.link-btn { background: none; border: 0; padding: 6px 0; color: var(--muted); text-decoration: underline; cursor: pointer; font: inherit; font-size: 14px; }
.sum { width: 100%; border-collapse: collapse; margin: 8px 0; }
.sum td { padding: 6px 0; }
.sum td:last-child { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sum .total td { border-top: 1px solid var(--line); padding-top: 12px; font-weight: 700; font-size: 18px; }
.field { display: grid; gap: 6px; margin: 0 0 14px; }
.field label { font-weight: 600; font-size: 15px; }
.field input, .field textarea, .field select { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid #bdbdbd; border-radius: 8px; font: inherit; color: var(--ink); background: #fff; }
.field textarea { min-height: 80px; resize: vertical; }
.hint { font-size: 13px; color: var(--muted); }
.pay { display: grid; gap: 8px; margin: 0 0 14px; padding: 0; border: 0; }
.pay legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.pay label { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.pay input { margin-top: 4px; accent-color: var(--ink); }
.alert { padding: 12px 14px; border-radius: 8px; margin: 12px 0; border: 1px solid; }
.alert-bad { color: var(--bad); border-color: #f1c4bf; background: #fdf2f1; }
.alert-ok { color: var(--ok); border-color: #b9dfc6; background: #f0f8f3; }
.alert-info { color: var(--ink); border-color: var(--line); background: var(--soft); }
.variant-prices { margin: 8px 0; padding-left: 20px; }
/* Chưa mở đặt hàng trực tuyến (QĐ-066 điểm 4): nút gọi thay nút đặt — tách khỏi khối .assure bên dưới. */
.order-closed { margin: 16px 0 24px; }
.order-closed .call { display: grid; gap: 8px; margin: 12px 0 0; }
.hero-hours { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 8px; }
.empty { text-align: center; padding: 40px 16px; }
.mt0 { margin-top: 0; }
.narrow { max-width: 460px; }
.w640 { max-width: 640px; margin-top: 16px; }
.stack { margin: 12px 0; }
.h-small { margin: 0 0 8px; font-size: 18px; }
.line-plain { grid-template-columns: 1fr auto; }

/* Đơn hàng */
.status { display: inline-flex; gap: 6px; align-items: center; padding: 6px 12px; border-radius: 999px; background: var(--soft); font-weight: 600; }
.qr-pay { display: grid; gap: 16px; align-items: center; justify-items: center; text-align: center; }
@media (min-width: 640px) { .qr-pay { grid-template-columns: auto 1fr; justify-items: start; text-align: left; } }
.qr-pay svg { border: 1px solid var(--line); border-radius: 8px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; word-break: break-word; }

/* Điện thoại hẹp (QC M9, 375 px): menu xuống hàng thứ hai, không phải vuốt ngang; giỏ hàng giữ ở hàng trên. */
@media (max-width: 640px) {
  .top .wrap { flex-wrap: wrap; gap: 4px 12px; padding-top: 8px; padding-bottom: 4px; }
  .cart-link { margin-left: auto; }
  .nav { order: 3; flex: 1 0 100%; margin-left: -10px; flex-wrap: wrap; overflow: visible; }
  .nav a { padding: 8px 10px; font-size: 14px; }
}

/* Xem lại đơn + đồng ý (QĐ-066) */
.review { margin-top: 8px; }
.review h2:focus { outline: none; }
.review h2 { scroll-margin-top: 140px; }   /* không bị thanh đầu trang (dính, 2 hàng ở điện thoại) che khi cuộn tới — QC 2026-10-21 */
.consent { display: grid; gap: 10px; margin: 16px 0; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.check input { width: 20px; height: 20px; margin-top: 2px; flex: none; accent-color: var(--ink); }
.vat { margin: 0 0 8px; color: var(--ink-2); font-size: 14px; }

/* Thông tin sản phẩm (nhãn hàng hoá) */
.specs { display: grid; grid-template-columns: minmax(120px, max-content) 1fr; gap: 8px 20px; margin: 0; }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; }
.specs dd p { margin: 0 0 6px; }
@media (max-width: 480px) { .specs { grid-template-columns: 1fr; gap: 2px; } .specs dd { margin-bottom: 10px; } }

/* Trang chính sách */
.policy { max-width: 75ch; margin-bottom: 40px; }
.policy h2 { font-size: 20px; }
.policy li { margin: 4px 0; }
.policy-list { display: grid; gap: 8px; padding-left: 20px; }
mark.todo { background: #fff3c4; color: #5c4400; padding: 0 3px; border-radius: 3px; }
.foot mark.todo { background: #5c4400; color: #fff3c4; }

/* Chân trang */
.foot { background: var(--ink); color: #fff; margin-top: 48px; }
.foot .wrap { padding-top: 32px; padding-bottom: 32px; display: grid; gap: 24px; }
@media (min-width: 720px) { .foot .wrap { grid-template-columns: 2fr 1fr 1fr; } }
.foot .mt-foot { margin-top: 20px; }
.foot-org p { margin: 8px 0; }
.moit img { width: 150px; height: auto; }
.moit a { display: inline-block; }
.foot a { color: #fff; }
.foot h2 { font-size: 16px; margin: 0 0 10px; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.foot .small { font-size: 13px; color: #cfcfcf; }
.foot-logo { background: #fff; display: inline-block; padding: 8px 12px; border-radius: 8px; }
.foot-logo img { height: 22px; width: auto; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print { .top, .foot, .notice-test { display: none; } }