/* ============================================================
   Lab-Grown Diamond Wholesaler — Static Site
   Original CSS. Luxury B2B aesthetic.
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-alt: #f7f6f3;
  --bg-dark: #0e0e10;
  --ink: #14141a;
  --ink-soft: #4a4a55;
  --muted: #8a8a93;
  --line: #e6e3dc;
  --gold: #b89968;
  --gold-soft: #d8c39a;
  --silver: #c9c9cf;
  --shadow: 0 10px 40px rgba(20, 20, 26, 0.08);
  --shadow-lg: 0 30px 80px rgba(20, 20, 26, 0.14);
  --radius: 2px;
  --maxw: 1240px;
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: 0.005em;
  line-height: 1.15;
  margin: 0 0 0.6em;
  color: var(--ink);
}
h1 { font-size: clamp(2.4rem, 5vw, 4.4rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 1.6vw, 1.5rem); }
p  { margin: 0 0 1em; color: var(--ink-soft); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top utility bar ---------- */
.topbar {
  background: var(--bg-dark);
  color: #d6d6dc;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 10px;
  padding-bottom: 10px;
}
.topbar a { color: #e9e6dd; opacity: 0.85; }
.topbar a:hover { opacity: 1; color: var(--gold-soft); }
.topbar .tb-right span + span { margin-left: 22px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-serif);
  font-size: clamp(1.16rem, 1.45vw, 1.42rem);
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink);
  flex-shrink: 0;
}
.brand-mark {
  width: 28px; height: 28px;
  display: inline-block;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><defs><linearGradient id='g' x1='0' y1='0' x2='1' y2='1'><stop offset='0' stop-color='%23d8c39a'/><stop offset='1' stop-color='%23b89968'/></linearGradient></defs><polygon points='50,5 85,38 50,95 15,38' fill='url(%23g)' stroke='%23b89968' stroke-width='2'/><polygon points='15,38 85,38 50,55' fill='%23fff' fill-opacity='0.35'/><polygon points='50,5 85,38 50,55' fill='%23fff' fill-opacity='0.15'/><line x1='15' y1='38' x2='50' y2='95' stroke='%23a3854e' stroke-width='1' opacity='0.6'/><line x1='85' y1='38' x2='50' y2='95' stroke='%23a3854e' stroke-width='1' opacity='0.6'/><line x1='50' y1='5' x2='50' y2='55' stroke='%23fff' stroke-width='0.8' opacity='0.5'/></svg>");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}
.footer .brand-mark, .contact-info .brand-mark { filter: brightness(1.05); }
.nav-links {
  display: flex; align-items: center; justify-content: center; gap: clamp(10px, 1.25vw, 20px);
  list-style: none; margin: 0; padding: 0;
  flex: 1 1 auto;
}
.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 8px 0;
  position: relative;
  transition: color .2s ease;
  white-space: nowrap;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px; background: var(--gold);
  transition: width .25s ease;
}
.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.is-active::after { width: 100%; }
.nav-links a.is-active { color: var(--gold); }

.nav-cta { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.nav-cta .btn { padding: 10px 14px; letter-spacing: 0.1em; font-size: 0.72rem; }
.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--line);
  padding: 10px 12px; border-radius: var(--radius);
}
.nav-toggle span {
  display: block; width: 20px; height: 1.5px; background: var(--ink);
  margin: 4px 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
  justify-content: center;
  min-height: 44px;
}
.btn-primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.btn-primary:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
  box-shadow: 0 10px 24px rgba(184,153,104,0.22);
}
.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-outline:hover {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 24px rgba(20,20,26,0.12);
}
.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.82);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08);
}
.btn-ghost:hover {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}
.btn-gold {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}
.btn-gold:hover { background: #a3854e; border-color: #a3854e; }
.btn:focus-visible,
.nav-links a:focus-visible,
.product-link:focus-visible,
.footer a:focus-visible,
.inv-table a:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
}
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  background:
    linear-gradient(110deg, rgba(8,8,12,0.88) 0%, rgba(8,8,12,0.65) 45%, rgba(8,8,12,0.35) 100%),
    url('https://images.unsplash.com/photo-1748598603856-a60dcca806cf?w=2000&q=80&fm=jpg&auto=format&fit=crop') center/cover no-repeat,
    #0e0e10;
}
.hero::before {
  content:''; position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 78% 70%, rgba(184,153,104,0.18) 0, transparent 55%);
  pointer-events: none;
}
.hero::after {
  content:''; position:absolute; inset:0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 8px);
  pointer-events: none; opacity:.4;
}
.hero .container { position: relative; z-index: 2; padding-top: 80px; padding-bottom: 80px; }
.hero-eyebrow {
  display:inline-block;
  font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold-soft); font-weight: 600;
  padding: 8px 16px; border: 1px solid rgba(216,195,154,0.4); border-radius: 999px;
  margin-bottom: 28px;
}
.hero h1 { color: #fff; max-width: 880px; margin-bottom: 24px; }
.hero h1 .accent { font-style: italic; color: var(--gold-soft); }
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.78);
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 30px;
  margin-top: 70px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,0.12);
  max-width: 720px;
}
.hero-stats .stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem; color: #fff;
}
.hero-stats .stat-label {
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

/* ---------- Sections ---------- */
section { padding: 100px 0; }
.section-title {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}
.section-title h2 .accent { font-style: italic; color: var(--gold); }
.section-divider {
  display:flex; align-items:center; justify-content:center; gap:18px;
  margin: 0 auto 24px; max-width: 220px;
}
.section-divider::before,
.section-divider::after {
  content:''; flex:1; height:1px; background: var(--line);
}
.section-divider .diamond {
  width: 10px; height: 10px;
  background: var(--gold);
  transform: rotate(45deg);
}

/* ---------- Intro split ---------- */
.intro { background: var(--bg); }
.intro-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.intro-visual {
  position: relative;
  aspect-ratio: 4/5;
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(0,0,0,0.35) 100%),
    url('https://images.unsplash.com/photo-1750767323874-5946ad2c7e91?w=1200&q=80&fm=jpg&auto=format&fit=crop') center/cover no-repeat,
    #1a1a20;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.intro-visual .badge {
  position: absolute; bottom: 30px; left: 30px;
  background: rgba(255,255,255,0.96);
  padding: 18px 22px;
  border-left: 3px solid var(--gold);
}
.intro-visual .badge .num { font-family: var(--font-serif); font-size: 2rem; color: var(--ink); display:block; line-height:1; }
.intro-visual .badge .lbl { font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }

.intro h2 { margin-bottom: 24px; }
.intro p { font-size: 1.02rem; }

/* ---------- Product grid (What We Sell) ---------- */
.bg-soft { background: var(--bg-alt); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 28px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-soft);
}
.product-thumb {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  background-color: #1a1a20;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: transform .6s ease;
}
.product-card:hover .product-thumb { transform: scale(1.04); }
/* Photo backgrounds — Unsplash free-license imagery, matched to each card's subject:
   t-1 Certified Diamonds       → single sparkling loose diamond on black
   t-2 Non-Certified Diamonds   → group of loose diamonds on a table
   t-3 Melee Diamonds           → many small diamonds, various shapes on black
   t-4 Stud Earrings            → pair of diamond earrings on black cloth
   t-5 Diamond Rings            → silver-and-diamond ring close-up
   t-6 Bracelets & Chains       → diamond bracelet on black background
   t-7 Custom Wholesale Orders  → finished diamond jewelry (rings)
   t-8 Wholesale Parcels        → multiple loose sparkling diamonds */
.product-thumb.t-1 { background-image: url('https://images.unsplash.com/photo-1748598603856-a60dcca806cf?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-2 { background-image: url('https://images.unsplash.com/photo-1731533621924-efa45b8f48a5?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-3 { background-image: url('https://images.unsplash.com/photo-1750767323874-5946ad2c7e91?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-4 { background-image: url('https://images.unsplash.com/photo-1693212793204-bcea856c75fe?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-5 { background-image: url('https://images.unsplash.com/photo-1607703829739-c05b7beddf60?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-6 { background-image: url('https://images.unsplash.com/photo-1639065643006-e217c4fee12e?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-7 { background-image: url('https://images.unsplash.com/photo-1719924998065-0c60e329ef58?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
.product-thumb.t-8 { background-image: url('https://images.unsplash.com/photo-1771792880533-662f7bc7d697?w=900&q=80&fm=jpg&auto=format&fit=crop'); }
/* Subtle dark vignette so the white card text in nearby copy reads cleanly */
.product-thumb::after {
  content:''; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.25) 100%);
  pointer-events: none;
}
.product-body { padding: 26px 24px 30px; }
.product-body h3 { margin-bottom: 8px; }
.product-body p { font-size: 0.92rem; margin-bottom: 16px; min-height: 60px; }
.product-link {
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase;
  color: #8f6d36;
  display: inline-flex; align-items: center; gap: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(143,109,54,0.35);
}
.product-link:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------- Services / features ---------- */
.feature-row {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px;
}
.feature-row.shape-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature {
  text-align: left;
  padding: 36px 28px;
  border: 1px solid var(--line);
  background: #fff;
  transition: border-color .25s ease, transform .25s ease;
}
.feature:hover { border-color: var(--gold-soft); transform: translateY(-4px); }
.feature-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border: 1px solid var(--gold);
  margin-bottom: 22px;
  color: var(--gold);
}
.feature h3 { font-size: 1.2rem; margin-bottom: 10px; }
.feature p { font-size: 0.94rem; margin: 0; }

/* ---------- Why lab-grown / benefits ---------- */
.benefits {
  background: var(--bg-dark);
  color: #e9e6dd;
}
.benefits h2 { color: #fff; }
.benefits p { color: rgba(255,255,255,0.7); }
.benefits .section-divider::before,
.benefits .section-divider::after { background: rgba(255,255,255,0.18); }
.benefit-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px;
}
.benefit {
  padding: 36px 26px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.14);
  transition: background .25s ease, border-color .25s ease;
}
.benefit:hover { background: rgba(255,255,255,0.06); border-color: var(--gold); }
.benefit .num {
  font-family: var(--font-serif);
  font-size: 2rem; color: var(--gold-soft);
  display:block; margin-bottom: 14px;
}
.benefit h3 { color: #fff; font-size: 1.15rem; margin-bottom: 10px; }
.benefit p { font-size: 0.92rem; margin: 0; }

/* ---------- Inventory CTA strip ---------- */
.cta-strip {
  background:
    linear-gradient(110deg, rgba(8,8,12,0.92) 0%, rgba(8,8,12,0.78) 100%),
    url('https://images.unsplash.com/photo-1731533621924-efa45b8f48a5?w=1800&q=80&fm=jpg&auto=format&fit=crop') center/cover no-repeat,
    #0e0e10;
  color: #fff;
  padding: 90px 0;
  text-align: center;
}
.cta-strip h2 { color: #fff; max-width: 800px; margin-left: auto; margin-right: auto; }
.cta-strip p { color: rgba(255,255,255,0.78); max-width: 600px; margin: 0 auto 32px; }
.cta-strip .hero-cta { justify-content: center; }

/* ---------- Trust strip ---------- */
.trust-strip { padding: 70px 0; background: var(--bg); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-strip .label {
  text-align:center; font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 30px;
}
.trust-logos {
  display: flex; flex-wrap: wrap; justify-content: space-around; align-items: center;
  gap: 40px; opacity: 0.72;
}
.trust-logos .logo-placeholder {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: 0.15em;
  color: var(--ink);
  padding: 8px 18px;
  border: 1px solid var(--line);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-dark);
  color: #c8c8d0;
  padding: 80px 0 30px;
}
.footer a { color: #c8c8d0; }
.footer a:hover { color: var(--gold-soft); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 50px;
  margin-bottom: 50px;
}
.footer .brand { color: #fff; margin-bottom: 18px; }
.footer-about p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase;
  margin-bottom: 22px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: 12px; font-size: 0.92rem; }
.footer .contact-line { display:flex; gap: 10px; align-items:flex-start; font-size: 0.92rem; color: rgba(255,255,255,0.7); margin-bottom: 14px; }
.footer .contact-line .ic { color: var(--gold-soft); margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
  font-size: 0.82rem; color: rgba(255,255,255,0.5);
}
.footer-bottom .legal a { margin-left: 22px; }

/* ---------- Page header (inner pages) ---------- */
.page-header {
  background:
    linear-gradient(120deg, rgba(8,8,12,0.88) 0%, rgba(8,8,12,0.7) 100%),
    url('https://images.unsplash.com/photo-1750767323874-5946ad2c7e91?w=1800&q=80&fm=jpg&auto=format&fit=crop') center/cover no-repeat,
    #0e0e10;
  color: #fff;
  padding: 120px 0 90px;
  text-align: center;
}
.page-header h1 { color: #fff; margin-bottom: 14px; }
.page-header .breadcrumb {
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold-soft);
}
.page-header .breadcrumb a:hover { color: #fff; }

/* ---------- Prose (inner pages) ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.6em; }
.prose ul { padding-left: 1.2em; color: var(--ink-soft); }
.prose ul li { margin-bottom: 0.5em; }

/* ---------- About-specific ---------- */
.values-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
}
.value-card {
  padding: 34px 28px; background:#fff;
  border-top: 2px solid var(--gold);
  box-shadow: var(--shadow);
}
.value-card h3 { margin-bottom: 10px; }
.value-card p { margin: 0; font-size: 0.94rem; }

.timeline { max-width: 820px; margin: 0 auto; }
.timeline-row {
  display: grid; grid-template-columns: 140px 1fr;
  gap: 30px; padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.timeline-row .yr {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--gold);
}
.timeline-row h3 { margin-bottom: 8px; }
.timeline-row p { margin: 0; }

/* ---------- Inventory ---------- */
.inventory-section { padding: 58px 0 90px; }
.shape-filter-panel {
  position: relative;
  margin-bottom: 22px;
  padding: 26px 28px 24px;
  border: 1px solid rgba(184,153,104,0.24);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(251,249,244,0.96) 100%),
    radial-gradient(circle at 12% 0%, rgba(184,153,104,0.12), transparent 34%);
  box-shadow: 0 20px 54px rgba(20,20,26,0.065), inset 0 1px 0 rgba(255,255,255,0.9);
  overflow: hidden;
}
.shape-filter-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 28px;
  width: 74px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(184,153,104,0));
}
.shape-filter-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 20px;
}
.shape-filter-heading .eyebrow { margin-bottom: 0; }
.shape-filter-heading h2 {
  margin: 5px 0 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.75rem, 2.5vw, 2.35rem);
  line-height: 1;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.shape-filter-heading p {
  max-width: 430px;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--muted);
  text-align: right;
}
.shape-chip-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.shape-chip {
  position: relative;
  flex: 0 1 calc((100% - 70px) / 6);
  min-height: 132px;
  padding: 15px 12px 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 11px;
  border: 1px solid rgba(184,153,104,0.20);
  border-radius: 16px;
  background: linear-gradient(180deg, #fff 0%, #fbfaf7 100%);
  color: var(--ink-soft);
  font-size: 0.70rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(20,20,26,0.035), inset 0 1px 0 rgba(255,255,255,0.92);
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, background .2s ease;
}
.shape-chip::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid transparent;
  border-radius: 12px;
  pointer-events: none;
  transition: border-color .2s ease;
}
.shape-chip:hover {
  border-color: rgba(184,153,104,0.55);
  color: var(--ink);
  box-shadow: 0 16px 36px rgba(20,20,26,0.075), 0 0 0 1px rgba(184,153,104,0.08);
  transform: translateY(-2px);
}
.shape-chip:focus-visible {
  outline: 2px solid rgba(184,153,104,0.72);
  outline-offset: 3px;
}
.shape-chip.is-active {
  border-color: #a97b35;
  background: linear-gradient(180deg, #fff9ef 0%, #f7efe1 100%);
  color: var(--ink);
  box-shadow: 0 14px 34px rgba(139,103,48,0.13), inset 0 0 0 1px rgba(184,153,104,0.12);
}
.shape-chip.is-active::after {
  border-color: transparent;
}
.shape-chip.is-active > span:last-child::after {
  content: "Selected";
  display: block;
  margin-top: 5px;
  font-size: 0.52rem;
  letter-spacing: 0.16em;
  color: #8c672e;
}
.shape-icon-well {
  width: min(148px, 100%);
  height: 108px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(145deg, #fbfaf6 0%, #f2efe7 100%);
  box-shadow: inset 0 0 0 1px rgba(184,153,104,0.10), 0 10px 22px rgba(20,20,26,0.050);
  overflow: hidden;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.shape-photo {
  width: 148px;
  height: 108px;
  display: block;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.06) brightness(1.01);
  transition: transform .2s ease, filter .2s ease;
}
.shape-chip:first-child .shape-photo {
  width: 148px;
  height: 108px;
}
.shape-chip:hover .shape-photo,
.shape-chip.is-active .shape-photo {
  transform: translateY(-1px) scale(1.035);
  filter: saturate(0.96) contrast(1.10) brightness(1.025);
}
.shape-chip:hover .shape-icon-well,
.shape-chip.is-active .shape-icon-well {
  transform: translateY(-1px);
  background: linear-gradient(180deg, #fffdf8 0%, #eee8dc 100%);
  box-shadow: inset 0 0 0 1px rgba(184,153,104,0.24), 0 12px 24px rgba(139,103,48,0.10);
}
.inv-toolbar {
  background: #fff;
  padding: 22px 24px;
  border: 1px solid var(--line);
  margin-bottom: 24px;
  display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 14px;
  align-items: end;
}
.inv-toolbar label {
  display:flex; flex-direction:column; gap: 6px;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: #686871; font-weight: 700;
}
.inv-toolbar select, .inv-toolbar input {
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  border-radius: var(--radius);
  min-height: 44px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.inv-toolbar select:focus, .inv-toolbar input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184,153,104,0.16);
}
.inv-toolbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
}
.inv-toolbar-actions .btn {
  min-height: 44px;
  padding: 10px 18px;
  white-space: nowrap;
}
.inv-clear-link {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.inv-clear-link:hover { color: var(--gold); }
.inv-meta {
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom: 14px;
  gap: 18px;
  font-size: 0.9rem; color: var(--ink-soft);
}
.inv-meta .btn { min-width: 230px; }
.inv-scroll-hint {
  display: none;
  margin: -8px 0 14px;
  color: var(--muted);
  font-size: 0.84rem;
}
.inv-table-wrap { overflow-x: auto; border: 1px solid var(--line); background:#fff; -webkit-overflow-scrolling: touch; }
.inv-table { width: 100%; border-collapse: collapse; min-width: 1060px; table-layout: fixed; }
.inv-table th, .inv-table td {
  padding: 14px 12px; text-align: left; font-size: 0.88rem;
  border-bottom: 1px solid var(--line);
}
.inv-table th {
  background: var(--bg-alt);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: #666670; font-weight: 700;
}
.inv-table th:nth-child(9), .inv-table th:nth-child(10),
.inv-table td:nth-child(9), .inv-table td:nth-child(10) { white-space: nowrap; }
.inv-table th:nth-child(1), .inv-table td:nth-child(1) { width: 16%; }
.inv-table th:nth-child(2), .inv-table td:nth-child(2) { width: 11%; white-space: nowrap; }
.inv-table th:nth-child(3), .inv-table td:nth-child(3) { width: 6%; }
.inv-table th:nth-child(4), .inv-table td:nth-child(4) { width: 6%; }
.inv-table th:nth-child(5), .inv-table td:nth-child(5) { width: 8%; }
.inv-table th:nth-child(6), .inv-table td:nth-child(6) { width: 7%; }
.inv-table th:nth-child(7), .inv-table td:nth-child(7) { width: 7%; }
.inv-table th:nth-child(8), .inv-table td:nth-child(8) { width: 7%; }
.inv-table th:nth-child(9), .inv-table td:nth-child(9) { width: 11%; }
.inv-table th:nth-child(10), .inv-table td:nth-child(10) { width: 9%; border-left: 1px solid var(--line); }
.inv-table .inv-action-head { width: 9%; min-width: 108px; text-align: center; }
.inv-table td:first-child a { overflow-wrap: anywhere; }
.inv-table td:last-child { text-align: center; }
.inv-table tr:hover td { background: #fafaf7; }
.inv-action-cell { white-space: nowrap; width: 108px; min-width: 108px; padding-left: 10px; padding-right: 10px; }
.inv-table .pill {
  display:inline-block; padding: 4px 10px; border:1px solid var(--gold-soft);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: #7f602f; border-radius: 999px;
  background: #fffaf0;
}
.inv-table .video-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  color: #7f602f;
  font-weight: 600;
}
.inv-table .video-link:hover { color: var(--ink); text-decoration: underline; }
.inv-table .table-dash { color: #9a9aa3; display: inline-block; min-width: 48px; text-align: center; }
.inv-table .table-muted { color: #8f8f98; font-size: 0.82rem; white-space: nowrap; }
.inv-inquire {
  background: var(--ink); color: #fff;
  border: none; padding: 10px 16px; font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; cursor: pointer;
  min-height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
}
.inv-inquire:hover { background: var(--gold); }

/* ---------- Education / FAQs ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line);
  padding: 22px 26px;
  margin-bottom: 14px;
  background: #fff;
  border-radius: var(--radius);
}
.faq summary {
  cursor: pointer; list-style: none;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--ink);
  display:flex; justify-content:space-between; align-items:center;
}
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content: '+'; color: var(--gold); font-size: 1.4rem; transition: transform .25s ease; }
.faq details[open] summary::after { content: '–'; }
.faq details p { margin-top: 14px; }

.compare {
  width: 100%; border-collapse: collapse; margin: 20px 0;
  background:#fff; border:1px solid var(--line);
}
.compare th, .compare td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.compare th { background: var(--bg-alt); font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.compare td:first-child { font-weight: 600; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px;
}
.contact-form {
  background: #fff; padding: 40px;
  border: 1px solid var(--line);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row.single { grid-template-columns: 1fr; }
.field { display:flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label {
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}
.field input, .field select, .field textarea {
  padding: 14px 16px;
  border: 1px solid var(--line);
  font-family: inherit; font-size: 0.95rem;
  color: var(--ink); background: #fff;
  border-radius: var(--radius);
  transition: border-color .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold);
}
.field textarea { min-height: 140px; resize: vertical; }
.contact-info {
  background: var(--bg-dark);
  color: #fff;
  padding: 50px 40px;
}
.contact-info h3 { color: #fff; }
.contact-info p, .contact-info a { color: rgba(255,255,255,0.78); }
.contact-info .info-block { margin-bottom: 32px; }
.contact-info .info-block h4 {
  font-family: var(--font-sans); font-size: 0.74rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold-soft); margin-bottom: 8px;
}
.map-placeholder {
  margin-top: 60px;
  height: 400px;
  background:
    linear-gradient(135deg, #e8e6df 0%, #f5f3ed 50%, #e0ddd3 100%);
  border: 1px solid var(--line);
  display:grid; place-items:center;
  color: var(--muted);
  letter-spacing: 0.18em; text-transform: uppercase; font-size: 0.78rem;
  position: relative;
}
.map-placeholder::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(184,153,104,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,153,104,0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .inv-toolbar { grid-template-columns: repeat(4, 1fr); }
  .shape-chip-row {
    gap: 12px;
  }
  .shape-chip { flex-basis: calc((100% - 36px) / 4); }
}
@media (max-width: 1080px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: block; }
}
@media (max-width: 980px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: block; }
  .nav-links.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 100%; left:0; right:0;
    background: #fff; padding: 16px 24px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.is-open li { width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links.is-open li:last-child { border-bottom: none; }
  .nav-links.is-open a { display:block; padding: 16px 0; }

  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-row, .feature-row.shape-grid { grid-template-columns: 1fr; gap: 20px; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }
  .inv-toolbar { grid-template-columns: repeat(2, 1fr); }
  .shape-chip { flex-basis: calc((100% - 24px) / 3); }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .values-grid { grid-template-columns: 1fr; }
  .timeline-row { grid-template-columns: 1fr; gap: 6px; }
  section { padding: 70px 0; }
}
@media (max-width: 560px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .nav { gap: 10px; }
  .brand { gap: 8px; font-size: 1.02rem; letter-spacing: 0.1em; min-width: 0; }
  .brand-mark { width: 22px; height: 22px; }
  .nav-toggle { padding: 9px 10px; flex-shrink: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .topbar .tb-left { display:none; }
  .hero { min-height: 76vh; }
  .page-header { padding: 92px 0 64px; overflow: hidden; }
  .page-header h1 { font-size: clamp(2.05rem, 10vw, 2.55rem); overflow-wrap: anywhere; }
  .page-header h1 span { display: block; }
  .page-header p { max-width: 100% !important; font-size: 0.98rem; overflow-wrap: break-word; }
  .form-row { grid-template-columns: 1fr; }

  .inv-toolbar {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 18px;
    margin-bottom: 22px;
  }
  .shape-filter-panel { padding: 20px 16px 18px; margin-bottom: 16px; border-radius: 16px; }
  .shape-filter-panel::before { left: 16px; }
  .shape-filter-heading { display: block; margin-bottom: 16px; }
  .shape-filter-heading h2 { font-size: 1.75rem; }
  .shape-filter-heading p { text-align: left; font-size: 0.86rem; margin-top: 6px; }
  .shape-chip-row { gap: 10px; }
  .shape-chip { flex-basis: calc((100% - 10px) / 2); }
  .shape-chip { min-height: 126px; padding: 13px 8px 12px; font-size: 0.63rem; }
  .shape-icon-well { width: min(118px, 100%); height: 84px; }
  .shape-photo { width: 118px; height: 84px; }
  .inv-toolbar-actions { justify-content: stretch; flex-direction: column; align-items: stretch; gap: 10px; }
  .inv-clear-link { text-align: center; padding: 8px 0; }
  .inv-toolbar button { width: 100%; min-height: 46px; }
  .inv-toolbar select, .inv-toolbar input { width: 100%; }
  .inv-meta {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: stretch;
  }
  .inv-meta .btn {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    white-space: normal !important;
    overflow-wrap: anywhere;
    letter-spacing: 0.1em;
    line-height: 1.35;
  }
  .inv-scroll-hint { display: block; }
  .inv-table-wrap {
    overflow: visible;
    border: 0;
    background: transparent;
  }
  .inv-table {
    display: block;
    min-width: 0;
    width: 100%;
    border-collapse: separate;
  }
  .inv-table thead { display: none; }
  .inv-table tbody { display: grid; gap: 16px; }
  .inv-table tr {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--line);
    background: #fff;
    box-shadow: 0 14px 34px rgba(20,20,26,0.07);
  }
  .inv-table tr:hover td { background: transparent; }
  .inv-table td {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
    min-height: 64px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    font-size: 0.94rem;
  }
  .inv-table td::before {
    content: attr(data-label);
    font-size: 0.64rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 700;
  }
  .inv-table td:first-child,
  .inv-table td:nth-child(10),
  .inv-table td:last-child {
    grid-column: 1 / -1;
  }
  .inv-table td:first-child {
    background: var(--bg-alt);
    font-size: 1rem;
    font-weight: 700;
  }
  .inv-table td:nth-child(9),
  .inv-table td:nth-child(10) { background: #fffaf0; }
  .inv-table td:nth-child(10) strong { font-size: 1.12rem; }
  .inv-table td:last-child {
    width: auto !important;
    min-width: 0 !important;
    white-space: normal !important;
    border-bottom: 0;
  }
  .inv-inquire,
  .inv-table td:last-child .btn,
  .inv-table td:last-child form,
  .inv-table td:last-child button {
    width: 100%;
  }
  .inv-inquire,
  .inv-table td:last-child .btn,
  .inv-table td:last-child button {
    min-height: 44px;
  }
}


/* ---------- Launch hardening: trust, inventory shortcuts, stone CTA ---------- */
.trust-operations { background: var(--bg-alt); }
.ops-grid { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 24px; }
.ops-card { background:#fff; border:1px solid var(--line); padding: 28px 24px; box-shadow: 0 12px 28px rgba(20,20,26,0.05); }
.ops-card h3 { font-size: 1.18rem; margin-bottom: 10px; }
.ops-card p { font-size: 0.92rem; margin:0; }
.quick-specs { display:flex; flex-wrap:wrap; gap:10px; margin: -8px 0 24px; }
.quick-specs a { border:1px solid var(--line); background:#fff; padding:10px 14px; font-size:0.74rem; font-weight:700; letter-spacing:0.12em; text-transform:uppercase; color:#72572d; }
.quick-specs a:hover { border-color: var(--gold); color: var(--ink); box-shadow: 0 8px 18px rgba(184,153,104,0.12); }
.featured-inventory { display:grid; grid-template-columns: 0.9fr 1.4fr; gap: 28px; align-items: center; background:#111116; color:#fff; padding:30px; margin-bottom:28px; }
.featured-inventory h2 { color:#fff; margin-bottom:10px; }
.featured-inventory p { color:rgba(255,255,255,0.72); margin:0; }
.featured-stones { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.featured-stone { display:block; background:rgba(255,255,255,0.06); border:1px solid rgba(216,195,154,0.28); padding:16px; }
.featured-stone strong, .featured-stone span, .featured-stone em { display:block; }
.featured-stone span { color:rgba(255,255,255,0.72); font-size:0.88rem; }
.featured-stone em { color:var(--gold-soft); font-style:normal; font-weight:700; margin-top:6px; }
.stone-action-box { margin: 16px 0 18px; padding: 16px; border: 1px solid var(--gold-soft); background: #fffaf0; display:grid; gap: 8px; }
.stone-action-box strong { font-family: var(--font-serif); font-size: 1.2rem; }
.stone-action-box span { color: var(--ink-soft); font-size: 0.9rem; }
.stone-action-box .btn { width:100%; padding: 12px; }
.stone-login-link { text-align:center; color: var(--gold); font-size: 0.86rem; font-weight: 600; }
@media (max-width: 980px) { .ops-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } .featured-inventory { grid-template-columns:1fr; } }
@media (max-width: 560px) { .ops-grid, .featured-stones { grid-template-columns: 1fr; } .quick-specs a { width:100%; text-align:center; } .featured-inventory { padding:22px 18px; } .contact-form { padding:24px 18px; } }