:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --soft: #f3efe9;
  --ink: #1f1c19;
  --muted: #6f6860;
  --line: #e6dfd5;
  --accent: #9c7a4a;
  --accent-strong: #7d5f35;
  --accent-ink: #ffffff;
  --ok: #2f6b4f;
  --warn: #8a4b1c;
  --warn-bg: #fbf1e6;
  --ok-bg: #edf5ef;
  --shadow: 0 1px 2px rgb(31 28 25 / 0.06), 0 8px 24px rgb(31 28 25 / 0.06);
  --radius: 10px;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #161412; --surface: #1f1c19; --soft: #26221e; --ink: #f2ede6; --muted: #a89f94; --line: #36312b;
    --accent: #c9a36b; --accent-strong: #dcb67d; --accent-ink: #1a1612; --ok: #8fd1ae; --warn: #f0b27a;
    --warn-bg: #2d2219; --ok-bg: #1c2a22; --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #161412; --surface: #1f1c19; --soft: #26221e; --ink: #f2ede6; --muted: #a89f94; --line: #36312b;
  --accent: #c9a36b; --accent-strong: #dcb67d; --accent-ink: #1a1612; --ok: #8fd1ae; --warn: #f0b27a;
  --warn-bg: #2d2219; --ok-bg: #1c2a22; --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 var(--sans); min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; outline: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0; }
h1 { font-size: clamp(30px, 4vw, 44px); }
h2 { font-size: clamp(24px, 3vw, 30px); }
button, input, select { font: inherit; color: inherit; }
.wrap { width: min(1280px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.center { text-align: center; }
.center-block { display: block; margin: 12px auto 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.eyebrow { display: block; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 600; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 12px 22px; border-radius: 999px;
  border: 1px solid transparent; font-weight: 500; text-decoration: none; cursor: pointer; transition: background .15s, border-color .15s, color .15s; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent-strong); color: var(--accent-ink); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; background: var(--ink); color: var(--bg); }
.btn-outline { border-color: var(--line); background: var(--surface); }
.btn-outline:hover { border-color: var(--ink); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { width: 100%; padding: 15px; font-size: 16px; }
.link { background: none; border: 0; padding: 0; color: var(--accent-strong); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- header / footer ---------- */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { font-family: var(--serif); font-size: 26px; font-weight: 600; text-decoration: none; letter-spacing: .02em; }
.main-nav { display: flex; gap: 28px; margin-left: auto; }
.main-nav a { text-decoration: none; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; padding: 6px 0; border-bottom: 1px solid transparent; }
.main-nav a:hover, .main-nav a.current { border-color: var(--accent); }
.build-count { display: inline-block; margin-left: 4px; padding: 0 7px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: 11px; line-height: 18px; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; width: 40px; height: 40px; padding: 9px; cursor: pointer; }
.nav-toggle span { display: block; height: 1.5px; background: var(--ink); margin: 5px 0; }
.site-footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 28px 0; font-size: 13px; }
.footer-row { display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }
.footer-row > span:first-child { font-family: var(--serif); font-size: 18px; }

/* ---------- page scaffolding ---------- */
.page { padding-top: 24px; }
.page-head { margin: 28px 0 20px; display: grid; gap: 8px; max-width: 760px; }
.section { margin-top: 56px; }
.section-title { margin-bottom: 20px; }
.empty-page { padding: 80px 0; text-align: center; display: grid; gap: 12px; }
.empty { padding: 40px 0; text-align: center; color: var(--muted); grid-column: 1 / -1; }
.crumbs { display: flex; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin: 20px 0; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--ink); }

/* ---------- builder stepper ---------- */
.stepper { display: grid; grid-template-columns: auto repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.stepper-title { display: flex; align-items: center; padding: 0 20px; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); border-right: 1px solid var(--line); background: var(--soft); }
.step { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 14px 18px; text-decoration: none; position: relative; min-height: 72px; }
.step + .step { border-left: 1px solid var(--line); }
.step.active { background: var(--soft); box-shadow: inset 0 -2px 0 var(--accent); }
.step-num { font-family: var(--serif); font-size: 32px; line-height: 1; color: var(--muted); }
.step.done .step-num { color: var(--accent); }
.step-text { display: grid; gap: 2px; min-width: 0; }
.step-label { font-weight: 500; }
.step-pick { font-size: 12.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step-meta { display: flex; gap: 10px; align-items: baseline; font-size: 12.5px; flex-wrap: wrap; }
.step-meta a, .step-meta .link { font-size: 12.5px; color: var(--muted); }
.step-icon { width: 30px; height: 30px; color: var(--muted); }
.step.done .step-icon { color: var(--accent); }

/* ---------- filters ---------- */
.filters { display: grid; gap: 22px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.filters-toggle { display: none; }
.filter-label { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.filter-grid { display: grid; grid-template-columns: 1.4fr 1.6fr .9fr; gap: 24px; }
.filter-grid.two { grid-template-columns: 1fr 1fr; }
.shape-row { display: grid; grid-template-columns: repeat(10, minmax(0, 1fr)); gap: 6px; }
.shape-btn { display: grid; justify-items: center; gap: 6px; padding: 10px 4px 8px; border: 1px solid transparent; border-radius: 8px; background: none; cursor: pointer; font-size: 12.5px; text-decoration: none; color: var(--muted); }
.shape-btn:hover:not(:disabled) { border-color: var(--line); color: var(--ink); }
.shape-btn[aria-pressed='true'], .shape-btn[aria-current='true'] { border-color: var(--ink); color: var(--ink); background: var(--soft); }
.shape-btn:disabled { cursor: default; opacity: .4; }
.shape-btn:disabled[aria-pressed='true'] { opacity: 1; }
.shape-icon { width: 34px; height: 34px; }
.shape-icon.sm { width: 22px; height: 22px; }
.shape-icon.xl { width: 55%; height: auto; color: var(--accent); }
.shape-row.compact { grid-template-columns: repeat(auto-fill, minmax(62px, 1fr)); }
.shape-row.compact .shape-icon { width: 28px; height: 28px; }
.lock-note { margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-size: 13.5px; }
.chip:hover { border-color: var(--muted); }
.chip[aria-pressed='true'] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.metal-row { display: flex; flex-wrap: wrap; gap: 6px; }
.metal-btn { display: grid; justify-items: center; gap: 4px; width: 64px; padding: 6px 2px; border: 1px solid transparent; border-radius: 8px; background: none; cursor: pointer; font-size: 11.5px; color: var(--muted); line-height: 1.2; text-align: center; }
.metal-btn:hover { border-color: var(--line); }
.metal-btn[aria-pressed='true'] { border-color: var(--ink); color: var(--ink); }
.swatch { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; font-size: 10px; font-weight: 600; color: #3b342c; letter-spacing: .02em;
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / .08); }
.swatch-white { background: radial-gradient(circle at 30% 30%, #ffffff, #d9d9d9 70%); }
.swatch-yellow { background: radial-gradient(circle at 30% 30%, #fbe7ae, #d4a84a 75%); }
.swatch-rose { background: radial-gradient(circle at 30% 30%, #f8d7c9, #d39580 75%); }
.swatch-platinum { background: radial-gradient(circle at 30% 30%, #f4f4f6, #a9acb3 75%); }
.price-inputs { display: flex; align-items: center; gap: 8px; }
.price-inputs input { width: 100%; min-width: 0; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }

/* range sliders */
.range-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px 32px; }
.range-head { display: flex; justify-content: space-between; align-items: baseline; }
.range-head .filter-label { margin-bottom: 0; }
.range-readout { font-size: 13px; font-weight: 500; }
.range-track { position: relative; height: 28px; margin-top: 6px; }
.range-track::before { content: ''; position: absolute; left: 0; right: 0; top: 13px; height: 2px; background: var(--line); border-radius: 2px; }
.range-fill { position: absolute; top: 13px; height: 2px; background: var(--ink); }
.range-track input { position: absolute; inset: 0; width: 100%; margin: 0; background: none; pointer-events: none; -webkit-appearance: none; appearance: none; z-index: 2; }
.range-track input::-webkit-slider-thumb { -webkit-appearance: none; pointer-events: auto; width: 18px; height: 18px; border-radius: 50%; background: var(--surface); border: 2px solid var(--ink); cursor: grab; }
.range-track input::-moz-range-thumb { pointer-events: auto; width: 14px; height: 14px; border-radius: 50%; background: var(--surface); border: 2px solid var(--ink); cursor: grab; }
.range-track input::-webkit-slider-runnable-track { background: none; }
.range-ticks { display: flex; justify-content: space-between; font-size: 10.5px; letter-spacing: -.01em; color: var(--muted); margin-top: 2px; }
.range-ticks span { flex: 1; text-align: center; }
.range-ticks span:first-child { text-align: left; }
.range-ticks span:last-child { text-align: right; }
.range-ticks span.in { color: var(--ink); font-weight: 500; }

/* results bar */
.results-bar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin: 22px 0 16px; }
.count { font-weight: 500; }
.active-filters { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tag { border: 1px solid var(--line); background: var(--soft); border-radius: 999px; padding: 4px 10px; font-size: 12.5px; cursor: pointer; }
.results-tools { display: flex; gap: 10px; align-items: center; margin-left: auto; }
.search, .sort, .ring-size { padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.search { width: 220px; }

/* ---------- ring cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 28px 20px; }
.card { display: grid; gap: 10px; align-content: start; }
.card-link { display: block; text-decoration: none; }
.card-media { position: relative; aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; background: var(--soft); }
.card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: opacity .25s ease, transform .4s ease; }
.card-media .img-hover { opacity: 0; }
.card:hover .img-hover { opacity: 1; }
.card:hover .card-media img { transform: scale(1.02); }
.badge { position: absolute; top: 10px; left: 10px; background: var(--surface); color: var(--ink); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; font-weight: 600; padding: 4px 9px; border-radius: 999px; box-shadow: var(--shadow); }
.badge.static { position: static; display: inline-block; margin-bottom: 10px; box-shadow: none; border: 1px solid var(--line); }
.card-body { display: grid; gap: 6px; padding: 0 2px; }
.card-swatches { display: flex; gap: 6px; }
.swatch-btn { padding: 2px; border: 1px solid transparent; border-radius: 50%; background: none; cursor: pointer; line-height: 0; }
.swatch-btn .swatch { width: 22px; height: 22px; font-size: 0; }
.swatch-btn[aria-pressed='true'] { border-color: var(--ink); }
.card-title { font-family: var(--sans); font-size: 14.5px; font-weight: 500; line-height: 1.35; }
.card-title a { text-decoration: none; }
.card-title a:hover { text-decoration: underline; text-underline-offset: 3px; }
.card-price { font-size: 14.5px; }
.card-price s, .pdp-price s, .price-cell s { color: var(--muted); font-size: .85em; margin-left: 4px; }
.card-price .muted { font-size: 12.5px; }
.more { display: flex; justify-content: center; margin-top: 32px; }

/* ---------- product detail ---------- */
.pdp { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.gallery { display: grid; gap: 12px; position: sticky; top: 84px; }
.gallery-main { position: relative; aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; background: var(--soft); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--surface); box-shadow: var(--shadow); font-size: 22px; line-height: 1; cursor: pointer; }
.gallery-nav.prev { left: 12px; }
.gallery-nav.next { right: 12px; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
.thumb { padding: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--soft); cursor: pointer; aspect-ratio: 1; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb[aria-pressed='true'] { border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.pdp-info { display: grid; gap: 18px; align-content: start; }
.pdp-info h1 { font-size: clamp(28px, 3.2vw, 38px); }
.pdp-sub { margin: -8px 0 0; font-size: 13.5px; }
.pdp-price { font-size: 26px; }
.option { display: grid; gap: 8px; }
.option-label { font-size: 13.5px; color: var(--muted); }
.option-label strong { color: var(--ink); font-weight: 500; }
.warn, .ok { margin: 0; padding: 12px 14px; border-radius: 8px; font-size: 13.5px; }
.warn { background: var(--warn-bg); color: var(--warn); }
.ok { background: var(--ok-bg); color: var(--ok); }
.specs-box { border-top: 1px solid var(--line); padding-top: 18px; display: grid; gap: 12px; }
.specs-box h2 { font-size: 22px; }
.specs { margin: 0; display: grid; }
.specs > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; }
.specs .note { grid-template-columns: 1fr; color: var(--muted); font-size: 13px; }
.related { margin-top: 64px; }
.related h2 { margin-bottom: 20px; }
.diamond-visual { aspect-ratio: 1; border-radius: var(--radius); background: var(--soft); display: grid; place-items: center; position: relative; padding: 24px; }
.diamond-visual img { width: 100%; height: 100%; object-fit: contain; }
.visual-links { position: absolute; bottom: 18px; left: 18px; right: 18px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }

/* ---------- diamond table ---------- */
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: opacity .15s; }
.table-wrap.loading { opacity: .55; }
.diamond-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.diamond-table th { text-align: left; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 12px 14px; background: var(--soft); border-bottom: 1px solid var(--line); }
.diamond-table td { padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.diamond-table tr:last-child td { border-bottom: 0; }
.diamond-table tbody tr:hover { background: var(--soft); }
.row-link { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 500; }
.row-actions { text-align: right; white-space: nowrap; }
.row-actions .btn + .btn { margin-left: 6px; }

/* ---------- complete ---------- */
.complete { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.complete-visual { aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; background: var(--soft); }
.complete-visual img { width: 100%; height: 100%; object-fit: cover; }
.placeholder { width: 100%; height: 100%; display: grid; place-items: center; }
.complete-info { display: grid; gap: 14px; }
.line-item { display: flex; justify-content: space-between; gap: 16px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; }
.line-item > div { display: grid; gap: 3px; }
.line-item a { text-decoration: none; }
.line-item a:hover strong { text-decoration: underline; text-underline-offset: 3px; }
.line-item .muted { font-size: 13px; }
.li-price { font-weight: 600; white-space: nowrap; }
.empty-item { border-style: dashed; color: var(--accent-strong); font-weight: 500; justify-content: center; }
.size-option { max-width: 240px; }
.summary-rows { margin: 0; display: grid; gap: 6px; font-size: 14.5px; }
.summary-rows > div { display: flex; justify-content: space-between; }
.summary-rows dt { color: var(--muted); }
.summary-rows dd { margin: 0; }
.total-row { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 18px; }
.total-row strong { font-size: 28px; font-family: var(--serif); }
.share-note:empty { display: none; }
.checkout-error[hidden] { display: none; }

/* ---------- policies & contact ---------- */
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer-links a { text-decoration: none; color: var(--muted); }
.footer-links a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.agree-note a { color: inherit; }
.policy-page { max-width: 860px; }
.policy-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 8px; }
.policy-nav a { padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; text-decoration: none; background: var(--surface); }
.policy-nav a[aria-current='page'] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.policy { display: grid; gap: 22px; margin-top: 18px; }
.policy h1 { margin-bottom: 4px; }
.policy-intro { font-size: 16px; margin: 0; }
.policy section { display: grid; gap: 8px; }
.policy h2 { font-size: 24px; }
.policy p, .policy ul { margin: 0; }
.policy ul { padding-left: 20px; display: grid; gap: 6px; }
.policy-faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.policy-faq details:last-child { border-bottom: 1px solid var(--line); }
.policy-faq summary { cursor: pointer; font-weight: 500; }
.policy-faq details p { margin-top: 8px; color: var(--muted); }
.policy-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.policy-card { display: grid; gap: 6px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; }
.policy-card:hover { border-color: var(--ink); }
.policy-card .muted { font-size: 13.5px; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 40px; align-items: start; }
.contact-details { display: grid; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.contact-details > div { display: grid; gap: 4px; }
.contact-details a[href^='mailto:'] { font-size: 20px; font-family: var(--serif); text-decoration: none; }
.contact-form { display: grid; gap: 14px; }
.contact-form label { display: grid; gap: 6px; font-size: 13.5px; color: var(--muted); }
.contact-form input, .contact-form textarea { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; }
.contact-form textarea { resize: vertical; }
.contact-form .btn { justify-self: start; }
.contact-form .hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 0; padding: 12px 14px; border-radius: 8px; font-size: 14px; }
.form-status[hidden] { display: none; }
.form-status.ok { background: var(--ok-bg); color: var(--ok); }
.form-status.warn { background: var(--warn-bg); color: var(--warn); }
@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ---------- order confirmation ---------- */
.order-page { display: grid; place-items: center; min-height: 50vh; }
.order-card { width: min(640px, 100%); display: grid; gap: 16px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.order-card .btn { justify-self: start; }
.order-items { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.order-items li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); }
.order-items li > div { display: grid; gap: 2px; }
.order-items .muted { font-size: 13px; }

/* ---------- home ---------- */
.hero { background: var(--soft); border-bottom: 1px solid var(--line); }
.hero-row { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 56px 0; }
.hero-copy { display: grid; gap: 18px; }
.hero-copy h1 { font-size: clamp(36px, 5vw, 60px); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.hero-media { position: relative; }
.hero-media img { border-radius: var(--radius); box-shadow: var(--shadow); width: 82%; aspect-ratio: 1; object-fit: cover; }
.hero-media-alt { position: absolute; width: 44% !important; right: 0; bottom: -28px; border: 6px solid var(--soft); }
.shape-tiles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.shape-tile { display: grid; justify-items: center; gap: 6px; padding: 22px 8px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; }
.shape-tile:hover { border-color: var(--ink); }
.shape-tile .shape-icon { width: 44px; height: 44px; color: var(--accent); }
.style-tiles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.style-tile { display: grid; gap: 8px; text-decoration: none; font-weight: 500; }
.style-tile img { aspect-ratio: 1; object-fit: cover; border-radius: var(--radius); background: var(--soft); }
.how-steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.how-steps li { display: grid; gap: 6px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); counter-increment: step; }
.how-steps li::before { content: counter(step); font-family: var(--serif); font-size: 36px; color: var(--accent); line-height: 1; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .filter-grid { grid-template-columns: 1fr 1fr; }
  .shape-row { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .stepper { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stepper-title { display: none; }
  .step + .step { border-left: 1px solid var(--line); }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; }
  .nav-open .main-nav { display: flex; }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .pdp, .complete, .hero-row { grid-template-columns: 1fr; gap: 28px; }
  .gallery { position: static; }
  .hero-row { padding: 36px 0 56px; }
  .filters-toggle { display: inline-flex; }
  .filters { display: none; }
  .filters.open { display: grid; }
  .filter-grid, .filter-grid.two { grid-template-columns: 1fr; }
  .stepper { grid-template-columns: 1fr; }
  .step { min-height: 0; padding: 10px 14px; }
  .step + .step { border-left: 0; border-top: 1px solid var(--line); }
  .step-num { font-size: 24px; }
  .results-tools { margin-left: 0; width: 100%; }
  .search { flex: 1; width: auto; min-width: 0; }
  .shape-tiles, .style-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .how-steps { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 12px; }
  /* diamond table becomes cards */
  .diamond-table thead { display: none; }
  .diamond-table, .diamond-table tbody, .diamond-table tr, .diamond-table td { display: block; }
  .diamond-table tr { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px 10px; padding: 14px; border-bottom: 1px solid var(--line); }
  .diamond-table td { padding: 0; border: 0; }
  .diamond-table td:first-child { grid-column: 1 / -1; }
  .diamond-table td[data-label]::before { content: attr(data-label); display: block; font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
  .diamond-table td.price-cell { grid-column: span 2; }
  .diamond-table td.row-actions { grid-column: span 2; align-self: end; }
  .diamond-table td.empty { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .shape-row { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 2px; }
  .shape-btn { font-size: 11px; padding: 8px 0 6px; }
  .shape-icon { width: 28px; height: 28px; }
  .metal-btn { width: 58px; }
  .card-title { font-size: 13.5px; }
}