/* SƯƠNG Studio — thời trang. Editorial, tối giản, tương phản cao: đen, trắng ngà, đỏ rượu. */
:root {
  --ink: #121212;
  --ink-2: #2a2826;
  --paper: #f5f1eb;
  --bone: #ebe4d9;
  --white: #fffdfa;
  --ox: #8a1c2c;
  --ox-deep: #6e1522;
  --muted: #5b554f;
  --line: #d8d0c4;
  --serif: "Noto Serif Display", "Times New Roman", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--white); color: var(--ink); font: 400 16px/1.65 var(--sans); overflow-x: hidden; }
h1, h2, h3 { margin: 0 0 .5em; font-weight: 500; line-height: 1.08; }
h1, h2 { font-family: var(--serif); letter-spacing: -.02em; }
h1 { font-size: clamp(3.2rem, 15vw, 7.6rem); line-height: .95; }
h2 { font-size: clamp(2.1rem, 7vw, 3.6rem); }
h1 em, h2 em { font-style: italic; color: var(--ox); }
h3 { font: 600 1rem/1.35 var(--sans); }
p { margin: 0 0 1em; }
a { color: inherit; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--ox); outline-offset: 3px; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--ink); color: #fff; }
.skip:focus { top: 12px; }

/* ---- Nút ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 26px;
  border: 1.5px solid var(--ink); border-radius: 0; cursor: pointer; text-decoration: none;
  font: 600 .82rem/1.2 var(--sans); letter-spacing: .12em; text-transform: uppercase; transition: background-color .2s, color .2s;
}
.btn-small { min-height: 44px; padding: 8px 16px; font-size: .74rem; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ox); border-color: var(--ox); }
.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-light { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-light:hover { background: var(--bone); }
.btn-line-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .7); }
.btn-line-light:hover { background: #fff; color: var(--ink); }
.btn-light:focus-visible, .btn-line-light:focus-visible { outline-color: #fff; }
.link-btn {
  padding: 0; border: 0; background: none; cursor: pointer; font: 600 1rem var(--sans); color: var(--ox);
  text-decoration: underline; text-underline-offset: 4px;
}

/* ---- Header ---- */
.site-header { position: sticky; top: 0; z-index: 40; background: rgba(255, 253, 250, .96); border-bottom: 1px solid var(--ink); }
.header-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0 12px; padding-top: 10px; }
.logo {
  display: inline-flex; align-items: baseline; gap: 6px; min-height: 44px; align-items: center; margin: 0;
  font: 700 1.55rem/1 var(--serif); letter-spacing: .2em; text-decoration: none; color: var(--ink);
}
.logo span { font: italic 500 1rem var(--serif); letter-spacing: 0; color: var(--ox); }
.nav { order: 3; flex: 1 0 100%; min-width: 0; margin: 6px -20px 0; border-top: 1px solid var(--line); }
.nav ul { display: flex; margin: 0; padding: 0 10px; list-style: none; overflow-x: auto; scrollbar-width: none; }
.nav ul::-webkit-scrollbar { display: none; }
.nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; white-space: nowrap; text-decoration: none;
  font-size: .78rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
}
.nav a:hover { color: var(--ox); text-decoration: underline; }

/* ---- Hero ---- */
.hero { padding: 34px 0 40px; background: var(--paper); }
.hero-grid { display: grid; gap: 34px; }
.kicker {
  display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0 0 18px; font-size: .75rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase; color: var(--muted);
}
.kicker span + span::before { content: "/"; margin-right: 18px; color: var(--ox); }
.lead { max-width: 30em; font-size: 1.08rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-actions .btn { flex: 1 1 200px; }

.hero-visual { position: relative; padding: 0 0 0 30px; }
.hero-arch {
  position: relative; display: grid; place-items: end center; aspect-ratio: 4 / 5; overflow: hidden;
  border-radius: 999px 999px 0 0; background:
    radial-gradient(circle at 70% 18%, rgba(255, 253, 250, .65) 0 14%, transparent 15%),
    linear-gradient(175deg, #e9d3bb 0%, #d4ab8a 52%, #a8644a 100%);
}
.hero-arch::after { content: ""; position: absolute; inset: auto 0 0; height: 22%; background: linear-gradient(0deg, rgba(18, 18, 18, .18), transparent); }
.hero-figure {
  position: relative; z-index: 1; width: 66%; height: 86%; fill: #f6eadb; stroke: var(--ink); stroke-width: 1.1;
  stroke-linejoin: round; stroke-linecap: round;
}
.hero-tag {
  position: absolute; left: 0; bottom: 26px; z-index: 2; padding: 14px 18px; background: var(--ink); color: #fff;
}
.hero-tag-k { margin: 0; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: #cfc6ba; }
.hero-tag-v { margin: 2px 0 0; font: italic 500 1.5rem/1.1 var(--serif); }
.hero-vertical {
  position: absolute; right: -6px; top: 20px; margin: 0; writing-mode: vertical-rl; font-size: .72rem; font-weight: 700;
  letter-spacing: .4em; color: var(--ink); background: var(--paper); padding: 10px 4px;
}

/* ---- Dải chạy ---- */
.marquee { overflow: hidden; background: var(--ink); color: #fff; border-top: 1px solid var(--ink); }
.marquee-track { display: flex; width: max-content; animation: marquee 30s linear infinite; }
.marquee ul { display: flex; margin: 0; padding: 0; list-style: none; }
.marquee li {
  padding: 14px 26px; white-space: nowrap; font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
}
.marquee li::after { content: "✦"; margin-left: 52px; color: #d9a3ab; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---- Section chung ---- */
.section { padding: 64px 0; }
.section-paper { background: var(--paper); }
.section-dark { background: var(--ink); color: #eae4dc; }
.section-head { margin-bottom: 32px; }
.section-head p { color: var(--muted); max-width: 34em; }
.section-head.split { border-bottom: 1px solid var(--ink); padding-bottom: 18px; }

/* ---- Sản phẩm ---- */
.products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 14px; margin: 0; padding: 0; list-style: none; }
.product { display: flex; flex-direction: column; }
.p-media { position: relative; display: grid; place-items: center; aspect-ratio: 3 / 4; overflow: hidden; margin-bottom: 12px; }
.p-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s cubic-bezier(.2, .7, .2, 1), filter .6s ease; }
.product:hover .p-photo { transform: scale(1.045); filter: saturate(1.06); }
.tone-1 { background: linear-gradient(160deg, #efe3d3, #d7bfa4); }
.tone-2 { background: linear-gradient(160deg, #e3e6dc, #b5bda4); }
.tone-3 { background: linear-gradient(160deg, #ece6dd, #c9bba6); }
.tone-4 { background: linear-gradient(160deg, #e9cfd1, #b5636f); }
.tone-5 { background: linear-gradient(160deg, #e7d8cb, #9b7461); }
.tone-6 { background: linear-gradient(160deg, #dfe3dc, #7b8b73); }
.tone-7 { background: linear-gradient(160deg, #f0e9df, #c8b393); }
.tone-8 { background: linear-gradient(160deg, #eceae6, #b9b5ae); }
.p-tag {
  position: absolute; left: 0; top: 12px; z-index: 1; padding: 5px 10px; background: var(--white); color: var(--ink);
  font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
}
.p-tag-sale { background: var(--ox); color: #fff; }
.p-info { display: flex; flex-direction: column; flex: 1; }
.p-info h3 { margin-bottom: .35em; font-size: .95rem; font-weight: 600; }
.p-colors { display: flex; gap: 6px; margin: 0 0 6px; }
.sw { width: 14px; height: 14px; border-radius: 50%; border: 1px solid rgba(18, 18, 18, .35); }
.sw-cream { background: #efe2cc; } .sw-black { background: #151515; } .sw-white { background: #fff; }
.sw-olive { background: #75794f; } .sw-beige { background: #cdb998; } .sw-ivory { background: #f4ecdc; }
.sw-oxblood { background: #7a1f2b; } .sw-cocoa { background: #6b4a3a; } .sw-moss { background: #4f5d43; } .sw-grey { background: #9a9893; }
.p-price { margin: auto 0 10px; font: 600 1.02rem var(--sans); }
.p-price .sale { color: var(--ox); }
.p-price del { margin-left: 4px; font-weight: 400; font-size: .88rem; color: var(--muted); }
.btn-buy { width: 100%; background: var(--white); color: var(--ink); padding: 10px 12px; font-size: .74rem; }
.btn-buy:hover { background: var(--ink); color: #fff; }

/* ---- Câu chuyện ---- */
.story { display: grid; gap: 20px; }
.story h2 { color: #fff; }
.story h2 em { color: #e3a8b0; }
.story p { color: #cfc8bf; font-size: 1.05rem; max-width: 40em; }
.story-num { margin: 0; font: italic 500 clamp(5rem, 24vw, 11rem)/.9 var(--serif); color: #e3a8b0; }
.story-num span { display: block; font: 600 .8rem var(--sans); letter-spacing: .3em; text-transform: uppercase; color: #cfc8bf; margin-top: 10px; }
.story-facts { display: grid; gap: 0; margin: 26px 0 0; padding: 0; list-style: none; border-top: 1px solid #3d3a37; }
.story-facts li { padding: 14px 0; border-bottom: 1px solid #3d3a37; color: #cfc8bf; }
.story-facts strong { display: inline-block; min-width: 96px; font: 500 1.3rem var(--serif); color: #fff; }

/* ---- Bảng size ---- */
.size-grid { display: grid; gap: 10px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--ink); }
.size-table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: .95rem; }
.size-table th, .size-table td { padding: 14px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.size-table thead th { background: var(--ink); color: #fff; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600; }
.size-table tbody th { font: 700 1.2rem var(--serif); color: var(--ox); }
.size-table tbody tr:last-child > * { border-bottom: 0; }
.size-table tbody tr:hover { background: var(--paper); }

/* ---- Chính sách ---- */
.policies { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.policy { padding: 24px 0; border-bottom: 1px solid var(--line); }
.policy p { color: var(--ink-2); }
.policy-n { margin: 0 0 6px; font: italic 500 1.6rem var(--serif); color: var(--ox) !important; }
.policy h3 { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; }
.policy-small { font-size: .88rem; color: var(--muted) !important; margin-bottom: 0; }
.policy-accent { background: var(--ink); color: #fff; padding: 24px 20px; border: 0; }
.policy-accent p { color: #e8e1d8; }
.policy-accent .policy-n { color: #e3a8b0 !important; }
.policy-accent .policy-small { color: #bdb5ab !important; }
.code { display: inline-block; padding: 2px 8px; margin-right: 4px; border: 1px dashed #e3a8b0; color: #fff; font-weight: 700; letter-spacing: .08em; }

/* ---- Đánh giá ---- */
.reviews { display: grid; gap: 0; }
.review { margin: 0; padding: 26px 0; border-bottom: 1px solid var(--line); }
.stars { display: flex; gap: 2px; margin-bottom: 12px; }
.stars svg { width: 15px; height: 15px; fill: var(--ink); }
.stars svg.off { fill: var(--line); }
.review blockquote { margin: 0 0 12px; }
.review blockquote p { margin: 0; font: italic 500 1.3rem/1.45 var(--serif); }
.review figcaption { font-size: .85rem; color: var(--muted); }
.review figcaption strong { color: var(--ink); }

/* ---- Hỏi đáp ---- */
.faq-grid { display: grid; gap: 10px; }
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 58px; padding: 14px 0;
  cursor: pointer; list-style: none; font-weight: 600; font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; font: 400 1.6rem/1 var(--serif); color: var(--ox); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 20px; color: var(--ink-2); max-width: 46em; }

/* ---- Showroom ---- */
.showroom { background: var(--ox-deep); color: #fff; }
.showroom h2 { color: #fff; }
.showroom h2 em { color: #f3c6cc; }
.showroom .kicker { color: #f3c6cc; }
.showroom-grid { display: grid; gap: 20px; }
.showroom-info { font-style: normal; }
.showroom-info p { display: grid; gap: 2px; padding: 12px 0; margin: 0; border-bottom: 1px solid rgba(255, 255, 255, .22); font-size: 1.05rem; }
.showroom-info a { color: #fff; font-weight: 600; }
.label { font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: #f3c6cc; }
.showroom-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.showroom-actions .btn { flex: 1 1 200px; }

/* ---- Footer ---- */
.site-footer { padding: 36px 0 110px; background: var(--ink); color: #cfc8bf; font-size: .9rem; }
.site-footer a { color: #fff; }
.logo-footer { color: #fff; margin-bottom: 10px; }
.logo-footer span { color: #e3a8b0; }
.footer-note { color: #a49c92; margin: 0; }

/* ---- Màn hình lớn ---- */
@media (min-width: 700px) {
  .products { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 22px; }
  .policies { grid-template-columns: repeat(2, 1fr); gap: 0 30px; }
  .reviews { grid-template-columns: repeat(3, 1fr); gap: 0 30px; }
  .review { border-bottom: 0; border-top: 1px solid var(--ink); }
  .section-head.split { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
  .section-head.split h2 { margin: 0; }
  .section-head.split p { margin: 0; text-align: right; }
}
@media (min-width: 1040px) {
  .header-row { flex-wrap: nowrap; padding-top: 0; min-height: 76px; }
  .nav { order: 0; flex: 1 1 auto; min-width: 0; margin: 0; border: 0; }
  .nav ul { justify-content: center; }
  .logo { font-size: 1.8rem; }
  .hero { padding: 70px 0 80px; }
  .hero-grid { grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: end; }
  .hero-visual { padding-left: 50px; }
  .section { padding: 100px 0; }
  .products { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .story { grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: center; }
  .size-grid { grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: start; }
  .policies { grid-template-columns: repeat(4, 1fr); }
  .policy { padding: 28px 22px 28px 0; border-bottom: 0; }
  .policy-accent { padding: 28px 22px; }
  .faq-grid { grid-template-columns: .7fr 1.3fr; gap: 60px; align-items: start; }
  .showroom-grid { grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
  .site-footer { padding-bottom: 40px; }
  .footer-row { display: grid; grid-template-columns: auto 1fr auto; gap: 30px; align-items: center; }
  .footer-row p { margin: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .p-photo { transition: none; }
}

/* Ảnh thật người mẫu trong khung vòm */
.hero-arch .hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 40% center; }
.hero-arch::after { z-index: 1; }