/* BORNTREND web khach: nen tang + thanh phan dung chung. Chi dung mau/chu trong tokens.css. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--c-bg); color: var(--c-ink);
  font: 400 var(--t-body)/1.65 var(--f-sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; border-radius: 0; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
h1, h2, h3, h4, p, ul, ol, figure, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--c-ink); outline-offset: 3px; }
/* nut nen den: vong trang nam ben trong */
.btn:not(.btn--line):focus-visible, .bt-barm:focus-visible, .bt-float:focus-visible, .skip:focus { outline: 2px solid var(--c-white); outline-offset: -5px; }
.skip { position: absolute; left: 8px; top: -80px; z-index: 300; background: var(--c-ink); color: var(--c-on-ink); padding: 12px 16px; font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.skip:focus { top: 8px; }
::selection { background: var(--c-ink); color: var(--c-on-ink); }
[hidden] { display: none !important; }

.wrap { padding-inline: var(--gutter); }
.sec { margin-top: var(--gap-section); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* chu */
.lbl { font: 500 var(--t-label)/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.muted { color: var(--c-muted); }
.err { color: var(--c-err); }
.sec-title, .page-h { font: 500 12px/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; color: var(--c-ink); margin: 0 0 20px; }
.sec-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.sec-head .sec-title { margin: 0; }
.bleed { margin-inline: calc(-1 * var(--gutter)); }

/* nut: chi nut quan trong la khoi dac (nen den chu trang, vuong goc); nut phu = chu in hoa gach chan 1px, khong khung */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 28px;
  background: var(--c-ink); color: var(--c-on-ink); border: 0; border-radius: 0;
  font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; text-align: center;
  transition: opacity .2s;
}
.btn:hover { opacity: .8; }
.btn--light { background: var(--c-ink); color: var(--c-on-ink); }
.btn--block { display: flex; width: 100%; }
.btn[aria-disabled="true"], .btn:disabled { opacity: .35; cursor: default; }
.btn[aria-disabled="true"]:hover, .btn:disabled:hover { opacity: .35; }
.btn--line { background: none; color: var(--c-ink); min-height: 44px; padding: 0 2px; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.btn--line:hover { opacity: .65; }
.btn--line.btn--block { display: inline-flex; width: auto; justify-self: start; }
.tlink {
  position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0;
  font: 500 var(--t-label)/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; color: inherit;
}
.tlink::after { content: ""; position: absolute; left: 0; right: calc(-1 * var(--track)); bottom: 9px; height: 1px; background: currentColor; }
.tlink:hover { opacity: .65; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; }
.icon-btn svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.2; stroke-linecap: square; }
.icon-btn:hover { opacity: .6; }

/* thanh thong bao + header */
.bt-ann { background: var(--c-block); color: var(--c-on-ink); text-align: center; padding: 10px var(--gutter); min-height: 36px; }
.bt-ann p { font: 400 var(--t-label)/1.5 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.bt-head { position: sticky; top: 0; z-index: 50; background: var(--c-bg); border-bottom: 1px solid var(--c-line); transition: background-color .2s, color .2s, border-color .2s; }
/* trang chu: header trong suot tren video hero, quay ve header trang khi cuon qua ~80% hero */
.bt-head--over { margin-bottom: -72px; background: transparent; border-bottom-color: transparent; color: var(--c-white); }
.bt-head--over .bt-nav a::after { background: var(--c-white); }
.bt-head--over .btn { background: var(--c-white); color: var(--c-ink); }
.bt-head--over .btn:focus-visible { outline-color: var(--c-ink); }
@media (min-width: 1280px) { .bt-head--over { margin-bottom: -76px; } }
.bt-head__in { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 72px; padding-inline: var(--gutter); margin-inline: auto; }
.bt-mark { font: 500 clamp(22px, 2.3vw, 27px)/1 var(--f-mark); letter-spacing: -.02em; text-transform: lowercase; white-space: nowrap; }
.bt-nav { display: flex; align-items: center; gap: clamp(18px, 2.2vw, 36px); }
.bt-nav a { display: inline-flex; align-items: center; min-height: 44px; font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; position: relative; }
.bt-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 10px; height: 1px; background: var(--c-ink); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.bt-nav a:hover::after, .bt-nav a[aria-current="page"]::after { transform: scaleX(1); }
.bt-right { display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.bt-right .btn { min-height: 44px; padding: 0 22px; margin-right: 12px; }
.bt-left { display: flex; align-items: center; }
.bt-d { display: none !important; }
.bt-m { display: flex; }
@media (min-width: 1280px) {
  .bt-d { display: flex !important; }
  .bt-m { display: none !important; }
  /* 6 muc menu dai: logo ben trai, menu ngay sau, cum phai cuoi hang */
  .bt-head__in { height: 76px; display: flex; gap: clamp(28px, 3vw, 48px); }
  .bt-head__in .bt-mark { order: -1; }
  .bt-left { flex: 1; min-width: 0; }
  .bt-nav { gap: clamp(16px, 1.6vw, 28px); }
}
.bt-oq { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.bt-oq:hover { opacity: .6; }

/* ngan keo menu */
.bt-menu { position: fixed; inset: 0; z-index: 120; background: var(--c-bg); display: flex; flex-direction: column; opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s; overflow-y: auto; }
.bt-menu.is-open { opacity: 1; visibility: visible; }
.bt-menu__top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 64px; padding-inline: var(--gutter); border-bottom: 1px solid var(--c-line); flex: none; }
.bt-menu__links { padding: 28px var(--gutter) 0; flex: 1; }
.bt-menu__links a { display: flex; align-items: center; min-height: 52px; font: 500 12px/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; border-bottom: 1px solid var(--c-line); }
.bt-menu__links a:hover { opacity: .6; }
.bt-menu__sub { display: flex; flex-direction: column; margin-top: 0; }
.bt-menu__sub a { color: var(--c-muted); }
.bt-menu__foot { padding: 24px var(--gutter) 32px; flex: none; }

/* nut dat lich noi */
.bt-float { position: fixed; left: 24px; bottom: 24px; z-index: 40; min-height: 48px; display: none; }
.bt-barm { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; background: var(--c-ink); color: var(--c-on-ink); display: flex; align-items: center; justify-content: center; min-height: 52px; padding-bottom: env(safe-area-inset-bottom); font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
body.has-bar { padding-bottom: calc(52px + env(safe-area-inset-bottom)); }
@media (min-width: 1280px) {
  .bt-float { display: inline-flex; }
  .bt-barm { display: none; }
  body.has-bar { padding-bottom: 0; }
}

/* khoi gioi thieu tren footer */
.bt-intro { margin-top: var(--gap-section); padding: 64px 0; }
.bt-intro p { max-width: 32.5em; margin: 0; font: 400 16px/1.5 var(--f-sans); letter-spacing: 0; text-align: left; }
@media (min-width: 900px) { .bt-intro { padding-block: 96px; } }

/* footer */
.bt-foot { padding: 0 0 24px; }
.bt-foot__links { display: flex; flex-wrap: wrap; gap: 0 20px; }
.bt-foot__links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0; font: 500 12px/1.3 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.bt-foot__links a:hover { opacity: .6; }
.bt-foot__bar { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.bt-foot__right { display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; }
.bt-foot__soc { display: flex; gap: 4px; margin-left: -11px; }
.bt-foot__soc a { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: var(--c-muted); }
.bt-foot__soc a:hover { color: var(--c-ink); }
.bt-foot__soc svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.bt-foot__soc svg.fb { fill: currentColor; stroke: none; }
.bt-foot__copy { order: 2; margin: 0; text-align: left; font: 400 var(--t-label)/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; color: var(--c-muted); }
@media (min-width: 900px) {
  .bt-foot__links { gap: 0 32px; }
  .bt-foot__links a { min-height: 0; padding: 6px 0; }
  .bt-foot__bar { flex-direction: row; align-items: center; justify-content: space-between; gap: 16px; margin-top: 32px; }
  .bt-foot__copy { order: -1; }
  .bt-foot__soc { margin-left: 0; }
  .bt-foot__right { justify-content: flex-end; gap: 8px; }
  .bt-foot__right .bt-reg { margin-right: -8px; }
}

body.foot-in .bt-float, body.foot-in .bt-barm { visibility: hidden; }
.bt-reg { display: inline-flex; align-items: center; }
.bt-reg button { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; color: var(--c-muted); }
.bt-reg button:hover { color: var(--c-ink); }
.bt-reg button[aria-current="true"] { color: var(--c-ink); text-decoration: underline; text-underline-offset: 6px; }
.bt-reg i { font-style: normal; color: var(--c-muted); }
.bt-menu__foot .bt-reg { margin-left: -8px; }

/* popup chon vung (lan dau vao trang) */
.bt-region { position: fixed; inset: 0; z-index: 400; background: var(--c-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: clamp(36px, 7vh, 72px); padding: 24px var(--gutter); }
.bt-region__mark { font: 500 clamp(30px, 6vw, 48px)/1 var(--f-mark); letter-spacing: -.02em; text-transform: lowercase; }
.bt-region__opts { display: flex; gap: 12px; width: min(440px, 100%); }
.bt-region__opts .btn { flex: 1; padding: 0 12px; min-height: 52px; }
@media (max-width: 480px) { .bt-region__opts { flex-direction: column; } }

/* skeleton + anh */
.ph { position: relative; display: block; overflow: hidden; background: var(--c-skel); }
.ph::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(100deg, transparent 20%, var(--c-shim) 50%, transparent 80%);
  transform: translateX(-100%); animation: bt-sh 1.5s infinite;
}
.ph--none::before { display: none; }
.ph-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .6s ease; z-index: 1; }
.ph-img.is-in { opacity: 1; }
@keyframes bt-sh { to { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce) { .ph::before { animation: none; } html { scroll-behavior: auto; } * { transition-duration: .01ms !important; } }
.r23 { aspect-ratio: var(--ratio-card); }

/* luoi + the san pham */
.grid4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 3px; margin-inline: calc(-1 * var(--gutter)); }
@media (max-width: 899px) { .grid4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.pc { display: block; padding-bottom: 20px; }
.pc .ph { aspect-ratio: var(--ratio-card); }
.pc__2 { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .5s ease; z-index: 2; }
@media (hover: hover) { .pc:hover .pc__2.is-in { opacity: 1; } }
.pc__name { display: block; margin-top: 12px; padding-inline: 10px; font: 500 var(--t-label)/1.5 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.pc__price { display: block; margin-top: 4px; padding-inline: 10px; font: 400 12.5px/1.4 var(--f-sans); color: var(--c-muted); }
.empty { font-size: 15px; color: var(--c-muted); padding: 24px 0; }

/* dai loc */
.tabs { position: relative; display: flex; gap: clamp(20px, 3vw, 36px); overflow-x: auto; overflow-y: hidden; overscroll-behavior-x: contain; touch-action: pan-x; -webkit-overflow-scrolling: touch; scrollbar-width: none; border-bottom: 1px solid var(--c-line); }
.tabs::-webkit-scrollbar { display: none; }
.tabs a, .tabs button { flex: none; display: inline-flex; align-items: center; justify-content: flex-start; min-width: 44px; min-height: 48px; font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; color: var(--c-muted); border-bottom: 1px solid transparent; margin-bottom: -1px; }
.tabs a:hover, .tabs button:hover { color: var(--c-ink); }
.tabs a[aria-current="true"], .tabs button[aria-current="true"] { color: var(--c-ink); border-bottom-color: var(--c-ink); }

/* form */
.fld { display: block; margin-bottom: 20px; }
.fld > .lbl { display: block; margin-bottom: 8px; color: var(--c-muted); }
.in {
  display: block; width: 100%; min-height: 48px; padding: 12px 0; background: transparent; color: var(--c-input-ink);
  border: 0; border-bottom: 1px solid var(--c-ink); border-radius: 0;
  font: 400 16px/1.4 var(--f-sans);
}
input[type="search"]::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }
.in::placeholder { color: var(--c-muted); opacity: 1; }
.in:focus { outline: none; border-bottom-width: 2px; padding-bottom: 11px; }
.in:-webkit-autofill { -webkit-text-fill-color: var(--c-input-ink); box-shadow: 0 0 0 100px var(--c-white) inset; }
textarea.in { min-height: 96px; resize: vertical; }
select.in, input[type="date"].in { -webkit-appearance: none; appearance: none; }
select.in { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-ink) 50%), linear-gradient(135deg, var(--c-ink) 50%, transparent 50%); background-position: calc(100% - 9px) 50%, calc(100% - 4px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 28px; }
.chk { display: flex; align-items: flex-start; gap: 12px; min-height: 44px; padding: 10px 0; font-size: 14px; line-height: 1.5; cursor: pointer; }
.chk input { appearance: none; flex: none; width: 18px; height: 18px; margin: 2px 0 0; background: transparent; border: 1px solid var(--c-ink); border-radius: 0; display: grid; place-content: center; cursor: pointer; }
.chk input:checked { background: var(--c-ink); border-color: var(--c-ink); }
.chk input:checked::after { content: ""; width: 9px; height: 5px; border-left: 1.5px solid var(--c-white); border-bottom: 1.5px solid var(--c-white); transform: translateY(-1px) rotate(-45deg); }
.chk a { text-decoration: underline; text-underline-offset: 3px; display: inline-block; padding: 12px 0; margin: -12px 0; }
.radios { display: flex; gap: 4px 8px; flex-wrap: wrap; }
.radios label { cursor: pointer; }
.radios input { position: absolute; opacity: 0; pointer-events: none; }
.radios span { display: inline-flex; align-items: center; min-height: 48px; padding: 0 12px; color: var(--c-muted); font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.radios label:hover span { color: var(--c-ink); }
.radios input:checked + span { color: var(--c-ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.radios input:focus-visible + span { outline: 2px solid var(--c-ink); outline-offset: 3px; }
.form-err { color: var(--c-err); font-size: 14px; min-height: 22px; margin: 4px 0 12px; }
.form-ok { font: 400 16px/1.6 var(--f-sans); }

/* chip (size, gio): chu in hoa, chon = den gach chan 2px, khong khung */
.chips { display: flex; flex-wrap: wrap; gap: 4px 8px; }
.chip { min-width: 56px; min-height: 48px; padding: 0 12px; color: var(--c-muted); font: 500 var(--t-label)/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; transition: color .15s; }
.chip:hover:not(:disabled) { color: var(--c-ink); }
.chip[aria-pressed="true"] { color: var(--c-ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.chip:disabled { opacity: .35; text-decoration: line-through; cursor: default; }

/* lich */
.cal { width: 100%; max-width: 440px; }
.cal__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.cal__title { font: 500 12px/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.cal__nav { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; }
.cal__nav svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.2; }
.cal__nav:disabled { opacity: .35; cursor: default; }
.cal__grid { display: grid; grid-template-columns: repeat(7, 1fr); }
.cal__dow { text-align: center; font: 500 10px/1 var(--f-sans); letter-spacing: .1em; color: var(--c-muted); padding: 10px 0; text-transform: uppercase; }
.cal__d { min-height: 44px; aspect-ratio: 1 / 0.92; display: flex; align-items: center; justify-content: center; font: 400 14px/1 var(--f-sans); margin: 1px; }
.cal__d:hover:not(:disabled):not([aria-pressed="true"]) { background: var(--c-in); }
.cal__d:disabled { opacity: .35; text-decoration: line-through; cursor: default; }
.cal__d[aria-pressed="true"] { background: var(--c-ink); color: var(--c-on-ink); }
.cal__d.is-today { font-weight: 500; }

/* ngan keo ben phai */
.dr { position: fixed; inset: 0; z-index: 150; visibility: hidden; }
.dr.is-open { visibility: visible; }
.dr__bg { position: absolute; inset: 0; background: var(--c-shade-60); opacity: 0; transition: opacity .3s; }
.dr.is-open .dr__bg { opacity: 1; }
.dr__panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(480px, 100%); background: var(--c-bg); border-left: 1px solid var(--c-line); transform: translateX(100%); transition: transform .35s cubic-bezier(.2, .7, .2, 1); display: flex; flex-direction: column; }
.dr.is-open .dr__panel { transform: none; }
.dr__head { display: flex; align-items: center; justify-content: space-between; padding: 8px 8px 8px 24px; border-bottom: 1px solid var(--c-line); flex: none; min-height: 60px; }
.dr__title { font: 500 var(--t-label)/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.dr__body { padding: 24px; overflow-y: auto; flex: 1; -webkit-overflow-scrolling: touch; }

/* vung cham >= 44px tren man hinh cam ung */
.bt-mark { display: inline-flex; align-items: center; min-height: 44px; }
@media (max-width: 1279px) {
  .info a.row { display: flex; align-items: center; min-height: 44px; }
}

/* iPhone: ô ngày trống không co lại, chữ căn trái, cao bằng ô chọn */
input[type="date"].in { display: flex; align-items: center; height: 48px; line-height: 1.4; text-align: left; }
input[type="date"].in::-webkit-date-and-time-value { text-align: left; margin: 0; }
input[type="date"].in::-webkit-calendar-picker-indicator { opacity: 1; }

/* Đợt 4B: ô nhận tin ở footer (không box, ô nhập chỉ kẻ dưới, nút đen chữ trắng) */
.bt-news { position: relative; margin: 0 0 24px; max-width: 480px; }
.bt-news__lbl { display: block; font: 500 var(--t-label)/1.4 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; }
.bt-news__row { display: flex; align-items: flex-end; gap: 12px; margin-top: 8px; }
.bt-news__row input { flex: 1; min-width: 0; min-height: 44px; padding: 0; border: 0; border-bottom: 1px solid var(--c-ink); border-radius: 0; background: transparent; color: var(--c-ink); font: 400 16px/1.4 var(--f-sans); outline: none; }
.bt-news__btn { flex: none; min-height: 44px; padding: 0 20px; border: 0; border-radius: 0; background: var(--c-ink); color: var(--c-white); font: 500 12px/1 var(--f-sans); letter-spacing: var(--track); text-transform: uppercase; cursor: pointer; }
.bt-news__btn:disabled { opacity: .5; }
.bt-news__agree { display: flex; align-items: center; gap: 10px; min-height: 44px; font: 400 13px/1.4 var(--f-sans); color: var(--c-muted); cursor: pointer; }
.bt-news__agree input { width: 18px; height: 18px; margin: 0; accent-color: var(--c-ink); }
.bt-news__msg { margin: 4px 0 0; min-height: 1em; font: 400 13px/1.4 var(--f-sans); }
.bt-news__msg.is-err { color: var(--c-err); }
.bt-news__hp { position: absolute; left: 0; top: 0; width: 1px; height: 1px; opacity: 0; pointer-events: none; overflow: hidden; }