/* ============================================================================
   PAGES — hero, home sections, collection, gem detail, about, contact, 404.
   ============================================================================ */

/* ── Hero (home) ──────────────────────────────────────────────────────────*/
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  width: 100%; height: 100%;
  object-fit: cover;
  animation: kenburns 26s ease-in-out infinite alternate;
}
@keyframes kenburns {
  from { transform: scale(1) translate(0, 0); }
  to   { transform: scale(1.12) translate(-2%, -2%); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__bg { animation: none; }
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 90% at 30% 50%, rgba(11,11,15,0.85), rgba(11,11,15,0.3) 60%),
    linear-gradient(to top, var(--c-bg) 2%, transparent 30%);
}
.hero__inner { max-width: 760px; padding-block: var(--space-2xl) var(--space-xl); }
.hero__eyebrow { margin-bottom: var(--space-md); }
.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: 0.01em;
}
.hero h1 .sheen {
  background: linear-gradient(100deg, var(--c-ink) 30%, var(--c-gold-bright) 50%, var(--c-ink) 70%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: sheen 6s var(--ease) infinite;
}
@keyframes sheen { 0%,100% { background-position: 130% 0; } 50% { background-position: -30% 0; } }
@media (prefers-reduced-motion: reduce) {
  .hero h1 .sheen { animation: none; color: var(--c-ink); -webkit-text-fill-color: var(--c-ink); }
}
.hero__lead {
  margin-top: var(--space-md);
  max-width: 46ch;
  font-size: var(--fs-lead);
  color: var(--c-ink-soft);
}
.hero__actions { margin-top: var(--space-lg); display: flex; flex-wrap: wrap; gap: 1rem; }

.scroll-cue {
  position: absolute;
  left: 50%; bottom: 2rem;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  color: var(--c-ink-mute);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.scroll-cue__line {
  width: 1px; height: 46px;
  background: linear-gradient(to bottom, var(--c-gold), transparent);
  animation: cue 2.2s var(--ease) infinite;
  transform-origin: top;
}
@keyframes cue { 0% { transform: scaleY(0); } 40% { transform: scaleY(1); } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ── Featured / section common ────────────────────────────────────────────*/
.section-head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--space-md); margin-bottom: var(--space-lg); flex-wrap: wrap;
}
.section-head-row .section-head { margin-bottom: 0; }

/* ── Trust / stats ────────────────────────────────────────────────────────*/
.trust { background: var(--c-bg-raise); border-block: 1px solid var(--c-line); }
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
  text-align: center;
}
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  font-weight: 600;
  color: var(--c-gold);
  line-height: 1;
}
.stat__label {
  margin-top: 0.6rem;
  font-size: var(--fs-small);
  letter-spacing: var(--tracking-mid);
  color: var(--c-ink-soft);
}

/* ── CTA band ─────────────────────────────────────────────────────────────*/
.cta-band { text-align: center; }
.cta-band .container { max-width: 760px; }
.cta-band h2 { font-size: var(--fs-h1); }
.cta-band p { margin: var(--space-md) auto var(--space-lg); max-width: 48ch; font-size: var(--fs-lead); }
.cta-band__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; }

/* ── Page hero (interior pages) ───────────────────────────────────────────*/
.page-hero {
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-lg);
  text-align: center;
  border-bottom: 1px solid var(--c-line);
  background: radial-gradient(120% 100% at 50% 0%, rgba(30,58,95,0.28), transparent 60%);
}
.page-hero h1 { font-size: var(--fs-h1); margin-top: var(--space-sm); }
.page-hero p { margin: var(--space-md) auto 0; max-width: 54ch; font-size: var(--fs-lead); }
.page-hero .eyebrow { justify-content: center; }

/* ── Collection filters ───────────────────────────────────────────────────*/
.filters {
  position: sticky;
  top: var(--nav-h);
  z-index: 50;
  background: rgba(11,11,15,0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
  padding-block: 1rem;
}
.filters__row {
  display: flex; align-items: center; gap: 0.6rem;
  overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.filters__row::-webkit-scrollbar { display: none; }
.filters__group { display: flex; gap: 0.6rem; }
.filters__divider { width: 1px; height: 24px; background: var(--c-line); flex: none; }
.filters__label {
  font-size: var(--fs-micro); letter-spacing: var(--tracking-wide);
  text-transform: uppercase; color: var(--c-ink-mute); flex: none; padding-right: 0.2rem;
}
.collection-count { margin-bottom: var(--space-md); font-size: var(--fs-small); color: var(--c-ink-mute); }
.gem-card.is-hidden { display: none; }
.collection-empty {
  text-align: center; padding: var(--space-xl) 0; color: var(--c-ink-mute);
  display: none;
}
.collection-empty.is-shown { display: block; }

/* ── Gem detail ───────────────────────────────────────────────────────────*/
.gem-detail { padding-top: calc(var(--nav-h) + var(--space-lg)); }
.breadcrumb {
  display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap;
  font-size: var(--fs-small); color: var(--c-ink-mute); margin-bottom: var(--space-md);
}
.breadcrumb a:hover { color: var(--c-gold); }
.breadcrumb span { opacity: 0.5; }

.gem-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
@media (max-width: 900px) { .gem-layout { grid-template-columns: 1fr; } }

.gallery { position: relative; }
@media (min-width: 901px) {
  .gallery { position: sticky; top: calc(var(--nav-h) + var(--space-md)); }
}

/* Trust strip beneath the stone — fills the column and reassures the buyer. */
.assurances {
  margin-top: 1.4rem;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-lg);
  background: var(--c-bg-raise);
  padding: 0 1.3rem;
}
.assurances li {
  display: flex; align-items: center; gap: 0.85rem;
  padding: 0.9rem 0;
  font-size: var(--fs-small);
  color: var(--c-ink-soft);
  letter-spacing: var(--tracking-mid);
}
.assurances li + li { border-top: 1px solid var(--c-line-soft); }
.assurances svg { width: 19px; height: 19px; color: var(--c-gold); flex: none; }
.gallery__main {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: radial-gradient(120% 120% at 50% 0%, #23232c, #0d0d12 70%);
  border: 1px solid var(--c-line-soft);
}
.gallery__main img { width: 100%; height: 100%; object-fit: cover; cursor: zoom-in; }
.gallery__ribbon {
  position: absolute; top: 18px; left: -34px; transform: rotate(-45deg);
  background: var(--c-sold); color: var(--c-ink); z-index: 3;
  font-size: var(--fs-micro); letter-spacing: var(--tracking-wide); text-transform: uppercase;
  padding: 0.4rem 2.8rem; box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.gallery__thumbs { display: flex; gap: 0.7rem; margin-top: 0.9rem; flex-wrap: wrap; }
.gallery__thumb {
  width: 74px; height: 74px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--c-line-soft); cursor: pointer; padding: 0; background: none;
  transition: border-color var(--dur-fast) var(--ease);
}
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumb.is-active { border-color: var(--c-gold); }

.gem-info__cat {
  font-size: var(--fs-micro); letter-spacing: var(--tracking-wide);
  text-transform: uppercase; color: var(--c-gold);
}
.gem-info h1 { font-size: var(--fs-h1); margin: 0.4rem 0 0.6rem; }
.gem-info__price {
  font-family: var(--font-display); font-size: 2rem; color: var(--c-ink); margin-bottom: 0.3rem;
}
.gem-info__price--request { font-family: var(--font-body); font-size: 1.05rem; font-style: italic; color: var(--c-ink-soft); }
.gem-info__desc { margin: var(--space-md) 0; color: var(--c-ink-soft); }

.spec-table { width: 100%; border-collapse: collapse; margin: var(--space-md) 0; }
.spec-table th, .spec-table td { text-align: left; padding: 0.85rem 0; border-bottom: 1px solid var(--c-line-soft); vertical-align: top; }
.spec-table th {
  width: 42%; font-weight: 400; color: var(--c-ink-mute);
  font-size: var(--fs-small); letter-spacing: var(--tracking-mid);
}
.spec-table td { color: var(--c-ink); font-size: var(--fs-small); }

.gem-actions { display: flex; flex-direction: column; gap: 0.9rem; margin-top: var(--space-md); }
.gem-actions .btn { width: 100%; }
.gem-status-note {
  margin-top: 1rem; font-size: var(--fs-small); color: var(--c-ink-mute);
  display: flex; align-items: center; gap: 0.5rem;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-gold); flex: none; }
.dot--sold { background: var(--c-sold); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6,6,9,0.94);
  display: none; align-items: center; justify-content: center;
  padding: var(--space-md); cursor: zoom-out;
}
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: var(--radius); object-fit: contain; }
.lightbox__close {
  position: absolute; top: 1.2rem; right: 1.4rem;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--c-bg-raise); border: 1px solid var(--c-line);
  color: var(--c-ink); font-size: 1.4rem; cursor: pointer;
}

/* Related strip */
.related { margin-top: var(--space-xl); }

/* ── About page ───────────────────────────────────────────────────────────*/
.editorial { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4.5rem); align-items: center; }
.editorial--reverse .editorial__media { order: 2; }
.editorial + .editorial { margin-top: var(--space-xl); }
.editorial__media {
  aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--c-line-soft);
}
.editorial__media img { width: 100%; height: 100%; object-fit: cover; }
.editorial h2 { margin: 0.6rem 0 var(--space-sm); }
@media (max-width: 820px) {
  .editorial { grid-template-columns: 1fr; gap: var(--space-md); }
  .editorial--reverse .editorial__media { order: 0; }
}

.timeline { max-width: var(--maxw-text); margin: 0 auto; }
.timeline__item {
  position: relative; padding: 0 0 var(--space-lg) var(--space-md);
  border-left: 1px solid var(--c-line);
}
.timeline__item:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline__item::before {
  content: ""; position: absolute; left: -5px; top: 4px;
  width: 9px; height: 9px; border-radius: 50%; background: var(--c-gold);
}
.timeline__year { font-family: var(--font-display); font-size: 1.4rem; color: var(--c-gold); }
.timeline__item h3 { font-size: 1.15rem; margin: 0.2rem 0 0.3rem; }

.badges { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.badge {
  padding: 0.9rem 1.4rem; border: 1px solid var(--c-line);
  border-radius: var(--radius); font-size: var(--fs-small);
  letter-spacing: var(--tracking-mid); color: var(--c-ink-soft);
}
.badge strong { color: var(--c-gold); font-weight: 500; }

/* ── Contact page ─────────────────────────────────────────────────────────*/
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4.5rem); align-items: start; }
@media (max-width: 820px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-primary {
  background: var(--c-bg-raise); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: clamp(1.6rem, 4vw, 2.6rem);
}
.contact-primary h2 { margin-bottom: var(--space-sm); }
.contact-detail { display: flex; gap: 0.9rem; align-items: flex-start; margin-top: var(--space-md); }
.contact-detail svg { width: 20px; height: 20px; color: var(--c-gold); flex: none; margin-top: 3px; }
.contact-detail a:hover { color: var(--c-gold); }
.contact-detail__label { font-size: var(--fs-micro); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--c-ink-mute); }

/* ── 404 ──────────────────────────────────────────────────────────────────*/
.error-page {
  min-height: 80svh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; gap: var(--space-sm);
  padding-top: var(--nav-h);
}
.error-page .code {
  font-family: var(--font-display); font-size: clamp(5rem, 18vw, 11rem);
  line-height: 0.9; color: var(--c-gold); font-weight: 600;
}