:root {
  --ink: #07080a;
  --ink-soft: #12141a;
  --silver: #c5ccd4;
  --mist: #e6e8ec;
  --quartz: #a8b0ba;
  --gold: #b8965a;
  --font-display: "Syne", "Gill Sans", sans-serif;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--mist);
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.5;
  background:
    radial-gradient(80% 50% at 70% -10%, rgba(197, 204, 212, 0.12), transparent 55%),
    linear-gradient(165deg, #050608 0%, var(--ink) 45%, #0c1016 100%);
  min-height: 100vh;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); border: 0;
}

.site-nav {
  position: fixed; inset: 0 0 auto; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.4rem;
  background: linear-gradient(to bottom, rgba(7, 8, 10, 0.75), transparent);
}
.site-nav.is-scrolled {
  backdrop-filter: blur(12px);
  background: rgba(7, 8, 10, 0.92);
  border-bottom: 1px solid rgba(197, 204, 212, 0.1);
}
.nav-brand {
  display: inline-flex; align-items: center; gap: 0.65rem;
  letter-spacing: 0.16em; font-size: 0.72rem; font-weight: 700;
}
.nav-mark { width: 28px; height: 28px; border-radius: 0; object-fit: cover; }
.nav-links { display: flex; gap: 1.25rem; font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; }
.nav-links a:hover { color: var(--gold); }
@media (max-width: 700px) { .nav-links { display: none; } }

.hero {
  position: relative;
  min-height: 100vh; min-height: 100dvh;
  display: grid; align-items: end;
  overflow: hidden;
}
.hero-media {
  position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(5, 6, 8, 0.96) 0%, rgba(7, 8, 10, 0.4) 50%, rgba(7, 8, 10, 0.55) 100%),
    url("assets/ch-hero-jewellery.png") center 40% / cover no-repeat;
  animation: drift 26s var(--ease) infinite alternate;
}
@keyframes drift {
  from { transform: scale(1.03); }
  to { transform: scale(1.08) translate3d(-1%, -0.5%, 0); }
}
.hero-copy {
  position: relative; z-index: 1;
  padding: clamp(5rem, 12vh, 8rem) clamp(1.25rem, 5vw, 4rem) clamp(2.5rem, 6vh, 4rem);
  max-width: 40rem;
}
.brand-logo {
  width: min(120px, 28vw); height: auto; aspect-ratio: 1;
  margin-bottom: 1rem;
  filter: drop-shadow(0 12px 28px rgba(0,0,0,0.45));
}
.hero-copy h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.8rem, 8vw, 4.6rem);
  letter-spacing: 0.02em;
  line-height: 1.05;
}
.lede { margin: 0 0 1.5rem; color: var(--silver); font-weight: 500; max-width: 28rem; }
.cta-group { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.cta {
  display: inline-flex; align-items: center;
  padding: 0.85rem 1.3rem;
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600;
  border: 1px solid transparent;
  transition: 0.25s var(--ease);
}
.cta-primary { background: var(--silver); color: var(--ink); }
.cta-primary:hover { background: var(--mist); }
.cta-ghost { border-color: rgba(197, 204, 212, 0.35); }
.cta-ghost:hover { border-color: var(--gold); color: var(--gold); }

.section { padding: clamp(3.5rem, 9vh, 6.5rem) clamp(1.25rem, 5vw, 4rem); }
.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); font-weight: 600;
}
.line-head { margin-bottom: 1.75rem; max-width: 36rem; }
.line-head h2, .section-text h2, .waitlist-panel h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 600;
}
.line-head p, .section-text p { margin: 0; color: var(--quartz); }

.section-mark {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
}
.mark-bleed { min-height: clamp(260px, 40vw, 420px); overflow: hidden; background: #101218; }
@media (max-width: 860px) {
  .section-mark { grid-template-columns: 1fr; }
}

.piece-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
.piece {
  margin: 0; position: relative;
  min-height: clamp(240px, 36vw, 400px);
  overflow: hidden; background: #101218;
  border: 1px solid rgba(197, 204, 212, 0.1);
}
.piece-wide { grid-column: 1 / -1; min-height: clamp(260px, 40vw, 440px); }
.piece img { transition: transform 0.8s var(--ease); }
.piece:hover img { transform: scale(1.03); }
.piece figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.1rem 1.2rem;
  background: linear-gradient(to top, rgba(7, 8, 10, 0.92), transparent);
  display: grid; gap: 0.2rem;
}
.piece figcaption strong { font-family: var(--font-serif); font-size: 1.25rem; font-weight: 600; }
.piece figcaption span { font-size: 0.78rem; color: var(--quartz); letter-spacing: 0.04em; }
@media (max-width: 700px) {
  .piece-grid { grid-template-columns: 1fr; }
  .piece-wide { grid-column: auto; }
}

.worlds-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.world-card {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  min-height: 200px;
  border: 1px solid rgba(197, 204, 212, 0.14);
  background: rgba(18, 20, 26, 0.75);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.world-card:hover { border-color: rgba(184, 150, 90, 0.45); transform: translateY(-2px); }
.world-card img { width: 56px; height: 56px; object-fit: cover; }
.world-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-serif);
  font-size: 1.6rem; font-weight: 600;
}
.world-card p:not(.eyebrow) { margin: 0 0 0.8rem; color: var(--quartz); font-size: 0.92rem; }
.world-cta { font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); }
@media (max-width: 700px) { .worlds-grid { grid-template-columns: 1fr; } }

.waitlist-panel {
  max-width: 32rem;
  padding: 1.75rem;
  border: 1px solid rgba(197, 204, 212, 0.14);
  background: rgba(18, 20, 26, 0.8);
}
.waitlist-form { display: flex; gap: 0.5rem; margin-top: 1.1rem; flex-wrap: wrap; }
.waitlist-form input {
  flex: 1 1 200px;
  padding: 0.85rem 1rem;
  background: #0a0c10;
  border: 1px solid rgba(197, 204, 212, 0.2);
  color: var(--mist);
  font: inherit;
}
.waitlist-form button {
  padding: 0.85rem 1.2rem;
  background: var(--silver); color: var(--ink);
  border: 0; font: inherit; font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; cursor: pointer;
}
.form-note { margin: 0.85rem 0 0; color: var(--gold); font-size: 0.85rem; }

.site-footer {
  padding: 2rem clamp(1.25rem, 5vw, 4rem) 3rem;
  border-top: 1px solid rgba(197, 204, 212, 0.08);
  font-size: 0.82rem; color: var(--quartz);
}
.site-footer .fine { opacity: 0.75; }

.reveal { opacity: 0; transform: translateY(14px); transition: 0.7s var(--ease); transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .hero-media { animation: none; }
  .reveal { opacity: 1; transform: none; }
}