:root {
  --ink: #27211b;
  --paper: #f4eee3;
  --paper-deep: #e9ddca;
  --white: #fffaf2;
  --muted: #786f64;
  --line: rgba(67, 49, 33, 0.16);
  --gold: #a97d42;
  --copper: #96563b;
  --serif: Georgia, "Times New Roman", "Noto Serif SC", "Songti SC", serif;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image: url("./assets/maple-pattern.png"), linear-gradient(135deg, rgba(255,255,255,.32), rgba(229,216,196,.16));
  background-size: 920px 920px, auto;
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--sans);
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
  background: rgba(244,238,227,.9);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; width: fit-content; }
.brand img { width: 52px; height: 52px; object-fit: contain; mix-blend-mode: multiply; }
.brand span { display: grid; line-height: 1; }
.brand strong { font-family: var(--serif); font-size: 19px; letter-spacing: .18em; font-weight: 500; }
.brand small { margin-top: 6px; color: var(--muted); font-size: 9px; letter-spacing: .22em; }
.desktop-nav { display: flex; gap: 32px; color: #5f554a; font-size: 14px; }
.desktop-nav a:hover { color: var(--copper); }
.header-actions { display: flex; justify-content: flex-end; align-items: center; gap: 12px; }
.language-button { width: 42px; height: 42px; border: 1px solid #8b7a66; border-radius: 50%; background: rgba(255,255,255,.28); color: var(--ink); cursor: pointer; }
.header-cta { padding: 12px 18px; background: var(--ink); color: var(--white); font-size: 14px; font-weight: 700; }

.hero { display: grid; grid-template-columns: .88fr 1.12fr; min-height: calc(100vh - 76px); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 9vw 6vw 7vw 8vw; background: radial-gradient(circle at 12% 10%, rgba(169,125,66,.18), transparent 34%), rgba(255,250,242,.36); }
.eyebrow { margin: 0 0 22px; color: var(--copper); font-size: 13px; font-weight: 800; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow.light { color: #e2c493; }
h1, h2 { margin: 0; font-family: var(--serif); font-weight: 400; letter-spacing: -.035em; }
h1 { max-width: 650px; font-size: clamp(48px, 6vw, 92px); line-height: .99; }
.hero-lede { max-width: 570px; margin: 30px 0 0; color: #665d53; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid transparent; cursor: pointer; font-weight: 800; }
.button.primary { background: var(--ink); color: var(--white); }
.button.secondary { border-color: #766b5e; background: rgba(255,255,255,.24); color: var(--ink); }
.button:hover, .header-cta:hover { opacity: .82; }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 60px 0 0; max-width: 520px; }
.hero-facts div { border-top: 1px solid #b5a894; padding-top: 16px; }
.hero-facts dt { font-family: var(--serif); font-size: 22px; }
.hero-facts dd { margin: 5px 0 0; color: #786f64; font-size: 12px; }
.hero-visual { position: relative; min-height: 680px; overflow: hidden; background: #141414; }
.hero-visual > img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,10,10,.2), transparent 32%), linear-gradient(0deg, rgba(0,0,0,.48), transparent 40%); }
.hero-card { position: absolute; z-index: 2; right: 5vw; bottom: 5vw; display: grid; min-width: 280px; padding: 22px; border: 1px solid rgba(255,255,255,.25); background: rgba(10,10,10,.7); color: var(--white); backdrop-filter: blur(14px); }
.hero-card span { color: #c9c2b8; font-size: 12px; }
.hero-card strong { margin-top: 8px; font-family: var(--serif); font-size: 30px; font-weight: 400; }
.hero-card small { margin-top: 7px; color: var(--gold); }

.trust-bar { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); background: rgba(255,250,242,.48); }
.trust-bar span { padding: 23px 18px; text-align: center; color: #655b50; font-size: 13px; letter-spacing: .08em; }
.trust-bar span + span { border-left: 1px solid var(--line); }
.section { padding: 120px 8vw; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 52px; }
.section-heading.compact { margin-bottom: 42px; }
.section-heading h2, .jewellery-copy h2, .assurance-copy h2, .inquiry-intro h2 { max-width: 780px; font-size: clamp(38px, 4.8vw, 70px); line-height: 1.05; }
.section-heading > p { max-width: 520px; margin: 0; color: #71675d; line-height: 1.85; }
.stone-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); box-shadow: 0 28px 70px rgba(69,48,27,.08); }
.stone-card { position: relative; min-height: 520px; padding: 34px; border-left: 1px solid var(--line); background: rgba(255,250,242,.82); color: var(--ink); }
.stone-card:first-child { border-left: 0; }
.stone-card.featured { background: #30271f; color: var(--white); }
.card-number { color: #817a70; font-size: 12px; letter-spacing: .18em; }
.diamond-symbol { display: grid; place-items: center; width: 100px; height: 100px; margin: 40px 0 55px; border: 1px solid currentColor; transform: rotate(45deg); font-family: var(--serif); font-size: 34px; }
.diamond-symbol.oval { border-radius: 50%; transform: none; }
.diamond-symbol + .card-kicker { margin-top: 0; }
.card-kicker { color: var(--copper); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.stone-card h3 { margin: 10px 0 12px; font-family: var(--serif); font-size: 32px; font-weight: 400; }
.stone-card > p:not(.card-kicker) { min-height: 54px; color: #71675d; line-height: 1.7; }
.featured > p:not(.card-kicker) { color: #cfc5b8; }
.stone-card ul { padding: 0; margin: 26px 0; list-style: none; color: #5d544a; font-size: 14px; line-height: 2; }
.featured ul { color: #e2d8cb; }
.stone-card a { display: inline-block; margin-top: auto; border-bottom: 1px solid currentColor; padding-bottom: 5px; font-size: 14px; font-weight: 800; }

.jewellery-section { padding-top: 20px; }
.jewellery-panel { display: grid; grid-template-columns: 1fr 1fr; background: linear-gradient(125deg, #843f2d, #2a1511 72%); color: var(--white); }
.jewellery-copy { padding: 80px; }
.jewellery-copy p:not(.eyebrow) { max-width: 600px; color: #e1cbc3; font-size: 16px; line-height: 1.9; }
.text-link { display: inline-block; margin-top: 24px; color: #f4d8a7; border-bottom: 1px solid currentColor; padding-bottom: 6px; font-weight: 700; }
.jewellery-options { display: grid; border-left: 1px solid rgba(255,255,255,.16); }
.jewellery-options article { padding: 40px 48px; border-bottom: 1px solid rgba(255,255,255,.16); }
.jewellery-options article:last-child { border-bottom: 0; }
.jewellery-options span { color: #d7ad7b; font-size: 12px; }
.jewellery-options h3 { margin: 8px 0; font-family: var(--serif); font-size: 28px; font-weight: 400; }
.jewellery-options p { margin: 0; color: #cdaea3; }

.process-section { background: rgba(233,221,202,.78); color: var(--ink); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0; margin: 0; list-style: none; border-top: 1px solid #bdb7ae; }
.process-grid li { padding: 32px 28px 0 0; }
.process-grid span { color: var(--copper); font-size: 12px; font-weight: 800; }
.process-grid h3 { margin: 58px 0 14px; font-family: var(--serif); font-size: 26px; font-weight: 400; }
.process-grid p { margin: 0; color: #625d56; line-height: 1.75; }

.assurance-section { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 8vw; }
.assurance-mark { aspect-ratio: 1; overflow: hidden; border: 1px solid var(--line); background: rgba(255,250,242,.58); box-shadow: 0 24px 70px rgba(69,48,27,.08); }
.assurance-mark img { width: 100%; height: 100%; padding: 7%; object-fit: contain; mix-blend-mode: multiply; }
.assurance-copy > p:not(.eyebrow) { max-width: 680px; color: #71675d; line-height: 1.9; }
.assurance-list { display: grid; margin-top: 36px; border-top: 1px solid var(--line); }
.assurance-list span { padding: 18px 0; border-bottom: 1px solid var(--line); color: #51483f; }

.inquiry-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; background: rgba(255,250,242,.74); border-top: 1px solid var(--line); }
.inquiry-section .eyebrow.light { color: var(--copper); }
.inquiry-intro p:not(.eyebrow) { max-width: 520px; color: #71675d; line-height: 1.85; }
.inquiry-form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.inquiry-form label { display: grid; gap: 9px; color: #5e5449; font-size: 13px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea { width: 100%; border: 0; border-bottom: 1px solid #9b8a76; border-radius: 0; padding: 13px 2px; background: transparent; color: var(--ink); outline: none; }
.inquiry-form select option { color: #111; }
.inquiry-form textarea { border: 1px solid #9b8a76; padding: 14px; resize: vertical; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus { border-color: var(--gold); }
.full { grid-column: 1 / -1; }
.form-note { margin: -10px 0 0; color: #847a72; font-size: 12px; text-align: center; }
.website-field { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 0; padding: 13px 15px; border: 1px solid transparent; font-size: 13px; line-height: 1.6; text-align: center; }
.form-status.pending { color: #6f6254; background: #f1ebe1; border-color: #ddd1c0; }
.form-status.success { color: #3d633d; background: #edf4e8; border-color: #bfd2b8; }
.form-status.error { color: #8c382e; background: #f8e9e4; border-color: #e0bbb2; }
.inquiry-form button:disabled { cursor: wait; opacity: .68; }

footer { display: grid; justify-items: center; gap: 18px; padding: 70px 6vw 38px; text-align: center; border-top: 1px solid var(--line); background: rgba(233,221,202,.5); }
.footer-brand { margin-bottom: 10px; }
footer > p, footer > a { margin: 0; color: #6f655a; font-size: 14px; }
footer > a { color: var(--gold); }
.legal { max-width: 820px; padding-top: 30px; font-size: 12px; line-height: 1.7; }

@media (max-width: 1000px) {
  .desktop-nav { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: 620px; padding: 90px 7vw 70px; }
  .hero-visual { min-height: 70vw; }
  .stone-grid { grid-template-columns: 1fr; }
  .stone-card, .stone-card:first-child { min-height: auto; border: 0; border-top: 1px solid var(--line); }
  .jewellery-panel, .assurance-section, .inquiry-section { grid-template-columns: 1fr; }
  .jewellery-options { border: 0; border-top: 1px solid rgba(255,255,255,.16); }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .assurance-mark { max-width: 560px; }
}

@media (max-width: 640px) {
  .site-header { min-height: 66px; padding: 0 16px; }
  .brand img { width: 40px; height: 40px; }
  .brand strong { font-size: 16px; }
  .brand small { font-size: 8px; }
  .header-cta { display: none; }
  .hero-copy { min-height: 600px; padding: 76px 22px 54px; }
  h1 { font-size: 49px; }
  .hero-lede { font-size: 16px; }
  .hero-facts { margin-top: 46px; gap: 8px; }
  .hero-facts dt { font-size: 18px; }
  .hero-visual { min-height: 520px; }
  .hero-card { right: 18px; bottom: 18px; left: 18px; min-width: 0; }
  .trust-bar { grid-template-columns: 1fr 1fr; }
  .trust-bar span:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .trust-bar span:nth-child(4) { border-top: 1px solid var(--line); }
  .section { padding: 84px 22px; }
  .section-heading { display: grid; gap: 24px; }
  .section-heading h2, .jewellery-copy h2, .assurance-copy h2, .inquiry-intro h2 { font-size: 40px; }
  .stone-card { padding: 30px 24px; }
  .diamond-symbol { margin-bottom: 42px; }
  .jewellery-section { padding-top: 0; }
  .jewellery-copy { padding: 58px 26px; }
  .jewellery-options article { padding: 32px 26px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid h3 { margin-top: 30px; }
  .inquiry-form { grid-template-columns: 1fr; }
  .full { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

.mobile-catalog { display: none; font-size: 14px; }
@media (max-width: 1000px) { .mobile-catalog { display: inline-flex; padding: 10px 4px; } }