:root {
  --ink: #0a0a09;
  --charcoal: #141412;
  --ivory: #f1eee6;
  --paper: #e7e2d7;
  --gold: #a88d58;
  --muted: #9c998f;
  --line: rgba(255, 255, 255, .18);
  --dark-line: rgba(10, 10, 9, .18);
  --pad: clamp(1.25rem, 4.2vw, 5rem);
  --max: 100rem;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ivory); color: var(--ink); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
::selection { color: var(--ivory); background: var(--gold); }

.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 200; background: var(--ivory); color: var(--ink); padding: .8rem 1rem; transition: top .2s; }
.skip-link:focus { top: 1rem; }
.shell { width: min(100%, var(--max)); margin-inline: auto; padding-inline: var(--pad); }
.eyebrow { margin: 0 0 1.5rem; font-size: .65rem; font-weight: 600; letter-spacing: .26em; text-transform: uppercase; }
.eyebrow.gold { color: var(--gold); }
.display { margin: 0; font-family: Didot, "Bodoni 72", "Bodoni MT", Georgia, serif; font-weight: 400; letter-spacing: -.055em; line-height: .87; }
.display-xl { font-size: clamp(4rem, 9.2vw, 10.5rem); }
.display-lg { font-size: clamp(3.3rem, 7vw, 8rem); }
.display-md { font-size: clamp(2.8rem, 5.3vw, 6rem); }
.lede { max-width: 35rem; font-size: clamp(1rem, 1.5vw, 1.3rem); line-height: 1.65; }
.micro { font-size: .68rem; line-height: 1.6; letter-spacing: .14em; text-transform: uppercase; }

.button { display: inline-flex; min-height: 3.4rem; align-items: center; justify-content: center; gap: 1rem; border: 1px solid currentColor; padding: 0 1.5rem; font-size: .66rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; transition: color .35s, background .35s, transform .35s; }
.button:hover { transform: translateY(-2px); }
.button-light { color: var(--ink); background: var(--ivory); border-color: var(--ivory); }
.button-light:hover { color: var(--ivory); background: transparent; }
.button-dark { color: var(--ivory); background: var(--ink); border-color: var(--ink); }
.button-dark:hover { color: var(--ink); background: transparent; }
.button-outline { color: var(--ivory); background: transparent; }
.text-link { display: inline-flex; align-items: center; gap: 1rem; border-bottom: 1px solid; padding-bottom: .45rem; font-size: .67rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.text-link::after { content: "↗"; font-size: 1rem; transition: transform .3s; }
.text-link:hover::after { transform: translate(.2rem, -.2rem); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 7.5rem; color: var(--ivory); border-bottom: 1px solid transparent; transition: height .4s, background .4s, border-color .4s; }
.site-header.scrolled, .site-header.solid { height: 6.4rem; background: rgba(10, 10, 9, .96); border-color: var(--line); backdrop-filter: blur(14px); }
.nav-shell { height: 100%; display: grid; grid-template-columns: minmax(12rem, 18rem) 1fr auto; align-items: center; gap: 2rem; padding-inline: var(--pad); }
.brand { position: relative; z-index: 102; width: clamp(10.8rem, 16vw, 15rem); }
.brand img { width: 100%; height: auto; }
.desktop-nav { display: flex; justify-content: center; gap: clamp(1rem, 1.8vw, 2.1rem); }
.desktop-nav a { position: relative; padding: .5rem 0; font-size: .62rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: var(--gold); transition: right .35s var(--ease); }
.desktop-nav a:hover::after, .desktop-nav a[aria-current="page"]::after { right: 0; }
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.inventory-link { min-height: 2.9rem; display: inline-flex; align-items: center; border: 1px solid rgba(255,255,255,.55); padding: 0 1rem; font-size: .6rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; transition: background .3s, color .3s; }
.inventory-link:hover { color: var(--ink); background: var(--ivory); }
.menu-toggle { display: none; position: relative; z-index: 102; width: 3rem; height: 3rem; border: 0; background: transparent; padding: 0; cursor: pointer; }
.menu-toggle span { position: absolute; left: .65rem; width: 1.75rem; height: 1px; background: currentColor; transition: transform .35s var(--ease), top .35s var(--ease); }
.menu-toggle span:first-child { top: 1.15rem; }
.menu-toggle span:last-child { top: 1.8rem; }
.menu-open .menu-toggle span:first-child { top: 1.48rem; transform: rotate(45deg); }
.menu-open .menu-toggle span:last-child { top: 1.48rem; transform: rotate(-45deg); }
.mobile-menu { position: fixed; inset: 0; z-index: 101; display: grid; align-content: center; color: var(--ivory); background: var(--ink); padding: 8rem var(--pad) 3rem; opacity: 0; visibility: hidden; transform: translateY(-1rem); transition: opacity .4s, visibility .4s, transform .4s; }
.menu-open .mobile-menu { opacity: 1; visibility: visible; transform: none; }
.mobile-menu nav { display: grid; }
.mobile-menu nav a { padding: .35rem 0; font-family: Didot, "Bodoni 72", Georgia, serif; font-size: clamp(2.7rem, 10vw, 5rem); letter-spacing: -.04em; }
.mobile-menu .mobile-meta { margin-top: 3rem; color: var(--muted); }

.hero { position: relative; min-height: 100svh; display: grid; align-items: end; overflow: hidden; color: var(--ivory); background: var(--ink); }
.hero-media, .page-hero-media { position: absolute; inset: 0; }
.hero-media img, .page-hero-media img, .hero-media video { width: 100%; height: 100%; object-fit: cover; }
.hero-media img { animation: heroIn 1.8s var(--ease) both; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.62), rgba(0,0,0,.15) 62%), linear-gradient(0deg, rgba(0,0,0,.75), transparent 55%); }
.hero-content { position: relative; z-index: 2; padding: 12rem var(--pad) clamp(4rem, 8vh, 7rem); }
.hero h1 { max-width: 76rem; }
.hero-intro { display: flex; align-items: end; justify-content: space-between; gap: 3rem; margin-top: 2.5rem; }
.hero-intro p { margin: 0; font-size: clamp(.8rem, 1.1vw, 1rem); letter-spacing: .04em; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero-index { position: absolute; z-index: 3; right: var(--pad); top: 50%; writing-mode: vertical-rl; font-size: .6rem; letter-spacing: .22em; text-transform: uppercase; }
@keyframes heroIn { from { scale: 1.08; filter: brightness(.55); } to { scale: 1; filter: brightness(1); } }

.intro-band { padding: clamp(6rem, 11vw, 11rem) 0; background: var(--ivory); }
.intro-grid { display: grid; grid-template-columns: .7fr 1.6fr .7fr; gap: 3rem; align-items: start; }
.intro-grid .statement { max-width: 56rem; }
.intro-grid .micro { color: #5f5b54; align-self: end; }

.collection-section { padding: clamp(5rem, 9vw, 9rem) 0; color: var(--ivory); background: var(--ink); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: clamp(3rem, 6vw, 6rem); }
.section-head .display { max-width: 62rem; }
.stone-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(1rem, 2vw, 2.2rem); }
.stone-card { grid-column: span 6; margin-bottom: clamp(2rem, 6vw, 6rem); }
.stone-card:nth-child(3n + 2) { grid-column: 7 / span 5; margin-top: 9rem; }
.stone-card:nth-child(3n + 3) { grid-column: 2 / span 5; }
.stone-frame { position: relative; aspect-ratio: 3 / 2; overflow: hidden; background: #1f1f1d; }
.stone-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease), filter .5s; }
.stone-card:hover .stone-frame img { transform: scale(1.045); }
.stone-meta { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.15rem; border-top: 1px solid var(--line); margin-top: 1rem; }
.stone-name { font-family: Didot, "Bodoni 72", Georgia, serif; font-size: clamp(1.4rem, 2vw, 2rem); }
.stone-number { color: var(--muted); font-size: .62rem; letter-spacing: .14em; }

.difference { padding: clamp(6rem, 11vw, 12rem) 0; }
.difference-head { display: grid; grid-template-columns: 1fr 1.45fr; gap: 4rem; align-items: end; margin-bottom: 5rem; }
.difference-head .display { max-width: 58rem; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--dark-line); }
.principle { min-height: 19rem; padding: 1.6rem 1.5rem 2rem 0; border-right: 1px solid var(--dark-line); }
.principle + .principle { padding-left: 1.5rem; }
.principle:last-child { border-right: 0; }
.principle span { display: block; margin-bottom: 5rem; color: var(--gold); font-size: .62rem; letter-spacing: .2em; }
.principle h3 { margin: 0 0 1rem; font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; }
.principle p { max-width: 15rem; margin: 0; color: #666159; font-size: .9rem; line-height: 1.65; }

.operations { position: relative; min-height: 90svh; display: grid; align-items: end; overflow: hidden; color: var(--ivory); background: var(--ink); }
.operations video, .operations img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.operations::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.8), transparent 65%); }
.operations-copy { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: end; gap: 3rem; padding-block: 5rem; }
.operations-copy p { max-width: 24rem; margin: 0; color: #d3cfc7; line-height: 1.6; }

.visit-preview { display: grid; grid-template-columns: 1fr 1fr; min-height: 55rem; background: var(--paper); }
.visit-image { min-height: 38rem; overflow: hidden; }
.visit-image img { width: 100%; height: 100%; object-fit: cover; transition: scale 1s var(--ease); }
.visit-preview:hover .visit-image img { scale: 1.025; }
.visit-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(4rem, 8vw, 9rem); }
.visit-copy p { margin: 2rem 0 2.5rem; }

.brand-statement { padding: clamp(7rem, 13vw, 14rem) var(--pad); text-align: center; color: var(--ivory); background: var(--ink); }
.brand-statement .display { max-width: 75rem; margin-inline: auto; }

.page-hero { position: relative; min-height: 78svh; display: grid; align-items: end; overflow: hidden; color: var(--ivory); background: var(--ink); }
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.82), rgba(0,0,0,.04) 65%); }
.page-hero-content { position: relative; z-index: 2; padding-top: 13rem; padding-bottom: 4.5rem; }
.page-hero-content .lede { margin: 2rem 0 0 auto; color: #dfdbd3; }
.page-intro { padding: clamp(6rem, 10vw, 11rem) 0; }
.page-intro-grid { display: grid; grid-template-columns: .7fr 1.4fr; gap: 4rem; }
.page-intro-grid p { margin: 0; }
.page-intro-grid .copy { max-width: 45rem; }
.page-intro-grid .copy p { font-size: clamp(1.1rem, 1.7vw, 1.45rem); line-height: 1.7; }
.page-intro-grid .copy p + p { margin-top: 1.5rem; }

.collection-page { padding: 6rem 0 10rem; color: var(--ivory); background: var(--ink); }
.collection-page .stone-card { margin-bottom: 3rem; }
.inventory-banner { display: grid; grid-template-columns: 1.15fr .85fr; min-height: 38rem; }
.inventory-banner img { width: 100%; height: 100%; object-fit: cover; }
.inventory-copy { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: clamp(3rem, 7vw, 8rem); background: var(--paper); }
.inventory-copy p { max-width: 28rem; margin: 1.8rem 0 2.5rem; line-height: 1.7; }

.gallery-mosaic { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem; padding-bottom: 8rem; }
.gallery-mosaic figure { margin: 0; overflow: hidden; }
.gallery-mosaic img { width: 100%; height: 100%; object-fit: cover; transition: scale 1s var(--ease); }
.gallery-mosaic figure:hover img { scale: 1.03; }
.gallery-mosaic figure:nth-child(1) { grid-column: 1 / span 8; aspect-ratio: 16 / 9; }
.gallery-mosaic figure:nth-child(2) { grid-column: 9 / span 4; aspect-ratio: 3 / 4; margin-top: 7rem; }
.gallery-mosaic figure:nth-child(3) { grid-column: 2 / span 4; aspect-ratio: 4 / 5; margin-top: 2rem; }
.gallery-mosaic figure:nth-child(4) { grid-column: 6 / span 7; aspect-ratio: 16 / 10; margin-top: 5rem; }
.gallery-mosaic figure:nth-child(5) { grid-column: 1 / span 7; aspect-ratio: 16 / 10; }
.gallery-mosaic figure:nth-child(6) { grid-column: 8 / span 5; aspect-ratio: 4 / 5; margin-top: 5rem; }

.visit-details { padding: 8rem 0; color: var(--ivory); background: var(--ink); }
.visit-details-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 3rem; }
.visit-details h2 { max-width: 34rem; }
.detail-block { padding-top: .9rem; border-top: 1px solid var(--line); }
.detail-block h3 { margin: 0 0 1.2rem; color: var(--gold); font-size: .62rem; letter-spacing: .19em; text-transform: uppercase; }
.detail-block p { margin: 0; color: #d4d0c7; font-size: .9rem; line-height: 1.7; }

.trade-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-bottom: 9rem; }
.trade-card { position: relative; min-height: 42rem; display: flex; flex-direction: column; justify-content: end; overflow: hidden; color: var(--ivory); padding: 2.2rem; border-right: 1px solid rgba(255,255,255,.25); background: var(--ink); }
.trade-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: brightness(.52) saturate(.7); transition: transform 1s var(--ease), filter .6s; }
.trade-card:hover img { transform: scale(1.04); filter: brightness(.63) saturate(.9); }
.trade-card-content { position: relative; z-index: 2; }
.trade-card h2 { margin: 0 0 1rem; font-family: Didot, "Bodoni 72", Georgia, serif; font-size: clamp(2.2rem, 3.5vw, 4.3rem); font-weight: 400; letter-spacing: -.04em; }
.trade-card p { max-width: 18rem; margin: 0; color: #dedad2; }
.trade-card .micro { display: block; margin-bottom: 12rem; color: var(--gold); }

.about-feature { display: grid; grid-template-columns: .8fr 1.2fr; }
.about-feature-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(4rem, 8vw, 9rem); background: var(--paper); }
.about-feature-copy p { max-width: 34rem; margin: 2rem 0 0; line-height: 1.75; }
.about-feature-image { min-height: 55rem; }
.about-feature-image img { width: 100%; height: 100%; object-fit: cover; }

.contact-main { padding: 12rem 0 8rem; color: var(--ivory); background: var(--ink); }
.contact-title { margin-bottom: 6rem; }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(4rem, 9vw, 10rem); }
.contact-info { display: grid; align-content: start; gap: 3rem; }
.contact-info-block { padding-top: 1rem; border-top: 1px solid var(--line); }
.contact-info-block h2 { margin: 0 0 1rem; color: var(--gold); font-size: .62rem; letter-spacing: .19em; text-transform: uppercase; }
.contact-info-block p { margin: 0; color: #d9d5cd; line-height: 1.75; }
.contact-info-block a:hover { color: var(--gold); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.7rem 1.2rem; }
.field { display: grid; gap: .7rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .6rem; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; }
.field input, .field textarea { width: 100%; border: 0; border-bottom: 1px solid rgba(255,255,255,.45); border-radius: 0; color: var(--ivory); background: transparent; padding: .8rem 0; outline: 0; transition: border-color .25s; }
.field input:focus, .field textarea:focus { border-color: var(--gold); }
.field textarea { min-height: 8rem; resize: vertical; }
.form-submit { margin-top: 2rem; }
.honeypot { position: absolute; left: -9999px; }

.thank-you { min-height: 100svh; display: grid; place-items: center; text-align: center; color: var(--ivory); background: var(--ink); padding: 10rem var(--pad) 5rem; }
.thank-you p { max-width: 32rem; margin: 2rem auto 2.5rem; color: #d2cec5; line-height: 1.7; }

.footer { padding: 5rem 0 2rem; color: var(--ivory); background: #080807; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 3rem; }
.footer-logo { width: min(14rem, 100%); }
.footer h2 { margin: 0 0 1.2rem; color: var(--gold); font-size: .61rem; letter-spacing: .18em; text-transform: uppercase; }
.footer p { margin: 0; color: #aaa69d; font-size: .78rem; line-height: 1.9; }
.footer a:hover { color: var(--ivory); }
.footer-bottom { display: flex; justify-content: space-between; gap: 2rem; margin-top: 5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: #77746e; font-size: .58rem; letter-spacing: .15em; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(2.5rem); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .desktop-nav { display: none; }
  .nav-shell { grid-template-columns: 1fr auto; }
  .nav-actions .inventory-link { display: none; }
  .menu-toggle { display: block; }
  .intro-grid { grid-template-columns: .5fr 1.5fr; }
  .intro-grid .micro { grid-column: 2; }
  .principles { grid-template-columns: 1fr 1fr; }
  .principle:nth-child(2) { border-right: 0; }
  .principle:nth-child(-n+2) { border-bottom: 1px solid var(--dark-line); }
  .visit-details-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  .site-header, .site-header.scrolled, .site-header.solid { height: 5.7rem; }
  .brand { width: 10.8rem; }
  .hero { min-height: 50rem; }
  .hero-media img { object-position: 56% center; }
  .hero-content { padding-top: 9rem; padding-bottom: 3rem; }
  .hero-intro { display: grid; gap: 2rem; }
  .hero-buttons { display: grid; width: 100%; }
  .button { width: 100%; }
  .hero-index { display: none; }
  .intro-grid, .difference-head, .page-intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .intro-grid .micro { grid-column: auto; max-width: 24rem; }
  .section-head { display: grid; }
  .stone-grid { display: block; }
  .stone-card, .stone-card:nth-child(3n + 2), .stone-card:nth-child(3n + 3) { margin: 0 0 4rem; }
  .stone-frame { aspect-ratio: 3 / 2; }
  .principles { display: block; }
  .principle, .principle + .principle { min-height: 0; padding: 1.5rem 0 2rem; border-right: 0; border-bottom: 1px solid var(--dark-line); }
  .principle span { margin-bottom: 3rem; }
  .operations { min-height: 42rem; }
  .operations-copy { display: grid; gap: 2rem; }
  .visit-preview, .inventory-banner, .about-feature { grid-template-columns: 1fr; min-height: 0; }
  .visit-image, .about-feature-image { min-height: 34rem; }
  .visit-copy, .inventory-copy, .about-feature-copy { padding: 5rem var(--pad); }
  .page-hero { min-height: 42rem; }
  .page-hero-content { padding-top: 10rem; padding-bottom: 3rem; }
  .page-hero-content .lede { margin-left: 0; }
  .gallery-mosaic { display: grid; grid-template-columns: 1fr; }
  .gallery-mosaic figure:nth-child(n) { grid-column: auto; margin-top: 0; aspect-ratio: 4 / 3; }
  .gallery-mosaic figure:nth-child(2n) { aspect-ratio: 4 / 5; }
  .visit-details-grid { grid-template-columns: 1fr; }
  .trade-grid { grid-template-columns: 1fr; }
  .trade-card { min-height: 36rem; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.25); }
  .trade-card .micro { margin-bottom: 10rem; }
  .contact-main { padding-top: 9rem; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}