/* =========================================================
   CARATBELLA — stylesheet
   A certificate-inspired system: every stone gets a report,
   every report gets a diagram. That diagram is our motif.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=Manrope:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root{
  /* ---- color: bordeaux noir, antique gold, deep conscious-emerald ---- */
  --noir: #1c0f14;
  --noir-2: #2a1420;
  --wine: #3b0f1d;
  --emerald: #16332b;
  --emerald-2: #0f2620;
  --gold-1: #ad7f37;
  --gold-2: #e2bd72;
  --gold-3: #f6e6bf;
  --ivory: #fbf6ee;
  --paper: #fffdf9;
  --ink: #241a1a;
  --ink-soft: #5b4a46;
  --blush: #d9b8a9;
  --line: rgba(36,26,26,.13);
  --line-dark: rgba(246,230,191,.18);
  --shadow: 0 30px 60px -30px rgba(28,15,20,.35);

  --font-display: 'Fraunces', ui-serif, Georgia, serif;
  --font-body: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Mono', ui-monospace, monospace;

  --container: 1220px;
  --radius: 2px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  background: var(--ivory);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; cursor:pointer; }
h1,h2,h3,h4,p,dl,dd{ margin:0; }

.container{ width:100%; max-width: var(--container); margin: 0 auto; padding: 0 28px; }

:focus-visible{ outline: 2px solid var(--gold-1); outline-offset: 3px; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-1);
}
.eyebrow.on-dark{ color: var(--gold-3); }

.section-head{ max-width: 640px; margin-bottom: 48px; }
.section-head h2{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 3.4vw, 2.9rem);
  margin-top: 10px;
  color: var(--ink);
}
.section-head p{ margin-top: 16px; color: var(--ink-soft); font-size: 1.02rem; max-width: 52ch; }
.section-head.on-dark h2{ color: var(--ivory); }
.section-head.on-dark p{ color: rgba(251,246,238,.7); }
.section-head.centered{ margin-left:auto; margin-right:auto; text-align:center; }

section{ padding: 100px 0; }
@media (max-width: 720px){ section{ padding: 68px 0; } }

/* ---------------------------------- buttons ---------------------------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family: var(--font-body); font-weight:700; font-size:.86rem;
  letter-spacing:.03em;
  padding: 15px 28px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform .25s ease, background-color .25s ease, color .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn--gold{
  background: linear-gradient(135deg, var(--gold-2), var(--gold-1));
  color: var(--noir);
}
.btn--gold:hover{ background: linear-gradient(135deg, var(--gold-3), var(--gold-2)); }
.btn--outline{
  background: transparent;
  border-color: var(--line-dark);
  color: var(--ivory);
}
.btn--outline:hover{ border-color: var(--gold-2); color: var(--gold-3); }
.btn--dark{
  background: var(--noir);
  color: var(--gold-3);
}
.btn--dark:hover{ background: var(--wine); }
.btn--visit{
  width:100%;
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
  font-size:.78rem;
}
.btn--visit:hover{ background: var(--ink); color: var(--paper); }
.btn--sm{ padding: 10px 18px; font-size:.74rem; }

/* ---------------------------------- svg sprite (offscreen defs) ---------------------------------- */
.sprite-defs{ position:absolute; width:0; height:0; overflow:hidden; }

/* ---------------------------------- header ---------------------------------- */
.site-header{
  position: fixed; top:0; left:0; right:0; z-index: 60;
  background: rgba(28,15,20,.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
  transition: background-color .3s ease;
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height: 78px; }
.brand{ display:flex; align-items:baseline; gap:8px; }
.brand-mark{ font-family: var(--font-display); font-style: italic; font-weight:500; font-size:1.5rem; color: var(--gold-3); }
.brand-sub{ font-family: var(--font-mono); font-size:.6rem; letter-spacing:.2em; color: rgba(246,230,191,.6); text-transform:uppercase; }

.main-nav{ display:flex; align-items:center; gap:34px; }
.main-nav a{
  font-size:.82rem; letter-spacing:.03em; color: rgba(251,246,238,.82);
  position:relative; padding: 4px 0;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:1px;
  background: var(--gold-2); transition: right .25s ease;
}
.main-nav a:hover::after, .main-nav a.is-active::after{ right:0; }
.main-nav a.is-active{ color: var(--gold-3); }

.header-cta{ display:flex; align-items:center; gap:18px; }
.nav-toggle{
  display:none; background:none; border:none; width:34px; height:34px; position:relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; position:absolute; left:6px; right:6px; height:1px; background: var(--gold-3); transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle span{ top:16px; }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }
.nav-toggle.is-open span{ background: transparent; }
.nav-toggle.is-open span::before{ transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span::after{ transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px){
  .main-nav{
    position: fixed; inset: 78px 0 0 0; height: calc(100vh - 78px);
    background: var(--noir); flex-direction:column; justify-content:flex-start; align-items:flex-start;
    padding: 40px 28px; gap: 26px;
    transform: translateX(100%); transition: transform .35s ease;
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav a{ font-size:1.1rem; }
  .nav-toggle{ display:block; }
  .header-cta .btn span.long{ display:none; }
}

/* ---------------------------------- hero ---------------------------------- */
.hero{
  position:relative; overflow:hidden;
  background: radial-gradient(120% 100% at 15% 0%, var(--wine) 0%, var(--noir) 46%, var(--noir-2) 100%);
  color: var(--ivory);
  padding: 168px 0 110px;
}
.hero .container{ position:relative; z-index:2; display:grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items:center; }
.hero-copy .eyebrow{ display:flex; align-items:center; gap:10px; }
.hero-copy .eyebrow::before{ content:""; width:26px; height:1px; background: var(--gold-2); display:inline-block; }
.hero-copy h1{
  font-family: var(--font-display); font-weight:500; font-style:normal;
  font-size: clamp(2.1rem, 3.6vw, 3.4rem); line-height:1.16; margin-top:22px;
  max-width: 16ch;
}
.hero-copy h1 em{ font-style:italic; color: var(--gold-2); font-weight:400; }
.hero-copy p.lede{ margin-top: 26px; font-size:1.08rem; max-width: 46ch; color: rgba(251,246,238,.78); }
.hero-actions{ display:flex; gap:16px; margin-top: 38px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:34px; margin-top: 56px; flex-wrap:wrap; }
.hero-stats div{ border-left: 1px solid var(--line-dark); padding-left:16px; }
.hero-stats strong{ display:block; font-family: var(--font-display); font-size:1.5rem; color: var(--gold-3); }
.hero-stats span{ font-size:.76rem; color: rgba(251,246,238,.62); }

.hero-visual{ position:relative; display:flex; align-items:center; justify-content:center; }
.hero-diamond{ width: min(420px, 100%); position:relative; z-index:2; }
.hero-diamond .facet-sweep{ transform-origin: 120px 120px; animation: sweep 6s ease-in-out infinite; }
@keyframes sweep{
  0%,100%{ opacity:.15; transform: translateX(-40px); }
  50%{ opacity:.65; transform: translateX(40px); }
}
.spark{ position:absolute; border-radius:50%; background: var(--gold-3); filter: blur(0.4px); animation: twinkle 3.4s ease-in-out infinite; }
@keyframes twinkle{ 0%,100%{ opacity:.15; transform: scale(.7);} 50%{ opacity:1; transform: scale(1.15);} }
.hero-visual .ring-orbit{
  position:absolute; inset:0; border:1px dashed var(--line-dark); border-radius:50%;
  animation: spin 46s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ---------------------------------- ticker ---------------------------------- */
.ticker{
  background: var(--gold-2); overflow:hidden; border-top:1px solid var(--noir); border-bottom:1px solid var(--noir);
}
.ticker-track{
  display:flex; gap: 48px; white-space:nowrap; width:max-content;
  padding: 13px 0; animation: ticker 26s linear infinite;
  font-family: var(--font-mono); font-size:.76rem; letter-spacing:.14em; color: var(--noir); text-transform:uppercase;
}
.ticker-track span{ display:flex; align-items:center; gap:10px; }
.ticker-track span::after{ content:"◆"; font-size:.6rem; color: var(--wine); margin-left:38px; }
@keyframes ticker{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }

/* ---------------------------------- ethos ---------------------------------- */
.ethos{ background: var(--paper); }
.ethos-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 32px; margin-top: 20px; }
.ethos-card{ padding: 34px 30px; border:1px solid var(--line); position:relative; }
.ethos-card .num{ font-family: var(--font-mono); font-size:.72rem; color: var(--gold-1); letter-spacing:.1em; }
.ethos-card h3{ font-family: var(--font-display); font-size:1.32rem; font-weight:500; margin-top:14px; }
.ethos-card p{ margin-top:12px; color: var(--ink-soft); font-size:.94rem; }
.ethos-card svg{ position:absolute; top:28px; right:26px; width:30px; height:30px; opacity:.65; }

/* ---------------------------------- collection nav ---------------------------------- */
.collection-nav{ position: sticky; top: 78px; z-index: 40; background: var(--ivory); border-bottom:1px solid var(--line); }
.collection-nav .container{ display:flex; gap:8px; overflow-x:auto; padding-top:14px; padding-bottom:14px; scrollbar-width:none; }
.collection-nav .container::-webkit-scrollbar{ display:none; }
.collection-nav a{
  font-family: var(--font-mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase;
  padding: 9px 18px; border:1px solid var(--line); border-radius: 999px; white-space:nowrap; color: var(--ink-soft);
  transition: all .2s ease;
}
.collection-nav a:hover, .collection-nav a.is-active{ background: var(--noir); border-color:var(--noir); color: var(--gold-3); }

/* ---------------------------------- collection sections ---------------------------------- */
.collection{ scroll-margin-top: 150px; }
.collection:nth-of-type(even){ background: var(--paper); }
.collection-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; flex-wrap:wrap; margin-bottom:48px; }
.collection-head .copy{ max-width:600px; }
.collection-head h2{ font-family: var(--font-display); font-weight:500; font-size: clamp(2rem,3.2vw,2.7rem); margin-top:10px; }
.collection-head p{ margin-top:14px; color: var(--ink-soft); }
.collection-count{ font-family: var(--font-mono); font-size:.78rem; color: var(--ink-soft); border:1px solid var(--line); padding:10px 16px; white-space:nowrap; }

.product-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
@media (max-width: 980px){ .product-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px){ .product-grid{ grid-template-columns: 1fr; } }

/* ---- certificate card: the signature element ---- */
.cert-card{
  background: var(--paper);
  border: 1px solid var(--line);
  position:relative;
  display:flex; flex-direction:column;
  opacity:0; transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease, box-shadow .3s ease;
}
.cert-card.in-view{ opacity:1; transform:none; }
.cert-card:hover{ box-shadow: var(--shadow); }
.cert-card:hover::after{ border-width: 0 34px 34px 0; }
.cert-card::after{
  content:""; position:absolute; top:0; right:0; z-index:2;
  width:0; height:0;
  border-style: solid;
  border-width: 0 28px 28px 0;
  border-color: transparent var(--gold-2) transparent transparent;
  filter: drop-shadow(-2px 2px 4px rgba(28,15,20,.18));
  transition: border-width .25s ease;
  pointer-events: none;
}
.cert-card__visual{
  position:relative; aspect-ratio: 1/1; background:
    linear-gradient(180deg, var(--ivory), var(--paper));
  border-bottom: 1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  padding: 18px;
}
.cert-card__visual .jewel-icon{ width:78%; height:78%; }
.cert-card__stamp{
  position:absolute; top:14px; left:14px;
  font-family: var(--font-mono); font-size:.6rem; letter-spacing:.1em;
  border:1px solid var(--gold-1); color: var(--gold-1); border-radius:999px;
  padding: 4px 9px 3px;
}
.cert-card__sale{
  position:absolute; top:14px; right:34px;
  font-family: var(--font-mono); font-size:.6rem; letter-spacing:.08em;
  background: var(--wine); color: var(--gold-3); padding:4px 9px 3px; border-radius:999px;
}
.cert-card__body{ padding: 22px 24px 24px; display:flex; flex-direction:column; gap:12px; flex:1; }
.cert-card__eyebrow{ font-family: var(--font-mono); font-size:.66rem; letter-spacing:.1em; color: var(--ink-soft); text-transform:uppercase; }
.cert-card__name{ font-family: var(--font-display); font-size:1.28rem; font-weight:500; }
.cert-card__desc{ font-size:.9rem; color: var(--ink-soft); flex:1; }
.cert-card__specs{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding: 12px 0; display:flex; flex-direction:column; gap:6px; }
.cert-card__specs div{ display:flex; justify-content:space-between; gap:10px; font-size:.8rem; }
.cert-card__specs dt{ color: var(--ink-soft); }
.cert-card__specs dd{ font-weight:600; text-align:right; }
.cert-card__footer{ display:flex; align-items:center; justify-content:space-between; gap:14px; }
.cert-card__price{ font-family: var(--font-display); font-size:1.4rem; }
.cert-card__price small{ font-family: var(--font-mono); font-size:.62rem; color: var(--ink-soft); display:block; text-transform:uppercase; letter-spacing:.06em; }
.cert-card__was{ font-size:.78rem; color: var(--ink-soft); text-decoration: line-through; margin-right:6px; }
.cert-card__footer-actions{ display:flex; flex-direction:column; gap:10px; width:100%; }

/* ---------------------------------- reviews ---------------------------------- */
.reviews{ background: var(--emerald); background: radial-gradient(120% 100% at 85% 0%, var(--emerald-2), var(--emerald)); color: var(--ivory); }
.reviews-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 28px; margin-top: 8px; }
@media (max-width: 900px){ .reviews-grid{ grid-template-columns: 1fr; } }
.review-card{ border:1px solid var(--line-dark); padding: 30px 28px; position:relative; }
.review-card .stars{ color: var(--gold-2); letter-spacing:.16em; font-size:.9rem; }
.review-card p.quote{ font-family: var(--font-display); font-size:1.12rem; font-style:italic; margin-top:18px; line-height:1.5; }
.review-card .who{ margin-top:22px; display:flex; align-items:center; gap:12px; }
.review-card .avatar{
  width:38px; height:38px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-family: var(--font-display); font-size:1rem; background: linear-gradient(135deg, var(--gold-2), var(--gold-1)); color: var(--noir);
}
.review-card .name{ font-weight:700; font-size:.92rem; }
.review-card .tag{ font-size:.76rem; color: rgba(251,246,238,.6); }

/* ---------------------------------- visit ---------------------------------- */
.visit{ background: var(--paper); }
.visit-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items:start; }
@media (max-width: 940px){ .visit-grid{ grid-template-columns: 1fr; gap:40px; } }
.visit-info h2{ font-family: var(--font-display); font-size: clamp(1.9rem,3vw,2.5rem); font-weight:500; margin-top:10px; }
.visit-info p.lede{ margin-top:16px; color: var(--ink-soft); max-width:48ch; }
.address-block{ margin-top: 30px; border-top:1px solid var(--line); padding-top:26px; display:flex; flex-direction:column; gap:22px; }
.address-row{ display:flex; gap:16px; align-items:flex-start; }
.address-row svg{ width:20px; height:20px; flex-shrink:0; margin-top:2px; color: var(--gold-1); }
.address-row h4{ font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; color: var(--ink-soft); font-weight:700; }
.address-row p, .address-row a{ margin-top:4px; font-size:.98rem; }
.address-row a:hover{ color: var(--gold-1); }
.hours-table{ margin-top:6px; font-size:.92rem; }
.hours-table div{ display:flex; justify-content:space-between; gap:18px; max-width:320px; padding:3px 0; }
.hours-table span{ white-space:nowrap; }
.hours-table span:last-child{ color: var(--ink-soft); }
.map-embed{ margin-top:30px; border:1px solid var(--line); }
.map-embed iframe{ width:100%; height:280px; border:0; display:block; filter: grayscale(.15) contrast(1.03); }

.visit-form{ background: var(--noir); color: var(--ivory); padding: 40px 36px; position:relative; }
.visit-form::before{ content:""; position:absolute; top:0; left:0; width:100%; height:3px; background: linear-gradient(90deg, var(--gold-1), var(--gold-3), var(--gold-1)); }
.visit-form h3{ font-family: var(--font-display); font-size:1.5rem; font-weight:500; }
.visit-form p.note{ margin-top:10px; font-size:.88rem; color: rgba(251,246,238,.68); }
.field{ margin-top:20px; display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:.76rem; letter-spacing:.05em; text-transform:uppercase; color: rgba(251,246,238,.75); }
.field input, .field select, .field textarea{
  background: rgba(251,246,238,.06); border:1px solid var(--line-dark); color: var(--ivory);
  padding: 13px 14px; font-family: var(--font-body); font-size:.95rem; border-radius: var(--radius);
}
.field input::placeholder, .field textarea::placeholder{ color: rgba(251,246,238,.35); }
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--gold-2); }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:520px){ .field-row{ grid-template-columns:1fr; } }
.visit-form .btn{ margin-top:26px; width:100%; }
.hp-field{ position:absolute; left:-9999px; }
.form-msg{ margin-top:16px; font-size:.88rem; padding:12px 14px; border-radius:2px; display:none; }
.form-msg.show{ display:block; }
.form-msg.ok{ background: rgba(226,189,114,.14); border:1px solid var(--gold-2); color: var(--gold-3); }
.form-msg.err{ background: rgba(217,90,90,.14); border:1px solid #d95a5a; color:#f2b8b8; }

/* ---------------------------------- footer ---------------------------------- */
.site-footer{ background: var(--noir); color: rgba(251,246,238,.72); padding: 64px 0 30px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 40px; }
@media (max-width: 820px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px){ .footer-grid{ grid-template-columns: 1fr; } }
.footer-brand .brand-mark{ font-size:1.7rem; }
.footer-brand p{ margin-top:16px; font-size:.9rem; max-width:34ch; color: rgba(251,246,238,.6); }
.footer-col h5{ font-size:.72rem; text-transform:uppercase; letter-spacing:.1em; color: var(--gold-2); margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; font-size:.9rem; }
.footer-col a:hover{ color: var(--gold-3); }
.footer-bottom{ margin-top:56px; padding-top:24px; border-top:1px solid var(--line-dark); display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.78rem; color: rgba(251,246,238,.45); }

/* ---------------------------------- misc/reveal ---------------------------------- */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view{ opacity:1; transform:none; }

::selection{ background: var(--gold-2); color: var(--noir); }