/* AURUM — estilo alineado con la línea de Noran: casi-negro, Fraunces+Inter,
   acentos cálidos, bordes sutiles, animaciones flotantes. */

:root {
  color-scheme: dark;
  --base-950: #0a0a0c;
  --base-900: #1b1e26;
  --base-850: #20232c;
  --ink-100: #e8e6e1;
  --ink-300: #c9cacb;
  --ink-500: #8d92a0;
  --ink-600: #6e7687;
  --brand-300: #ffc58a;
  --brand-400: #ff9f4d;
  --brand-500: #ff7a1f;
  --brand-600: #e85d0a;
  --surface-border: #ffffff1a;
  --surface-border-weak: #ffffff14;
  --surface-hover: #ffffff0d;

  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Fraunces", "Inter", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--base-950);
  color: var(--ink-100);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.font-display { font-family: var(--font-display); }

::selection { background: var(--brand-600); color: #fff; }

/* ---------- NAV ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { background: #0a0a0cd9; border-color: var(--surface-border-weak); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 18px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { font-family: var(--font-display); font-weight: 600; letter-spacing: .22em; font-size: 15px; color: var(--ink-100); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.logo-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand-500); box-shadow: 0 0 10px var(--brand-500); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--ink-500); text-decoration: none; font-size: 13.5px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--ink-100); }
.nav-cta {
  font-family: var(--font-sans); cursor: pointer;
  background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
  color: #fff; border: none; padding: 9px 20px; border-radius: 999px;
  font-size: 13px; font-weight: 600; transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px -8px #ff7a1f88; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
#watch3d { position: absolute; inset: 0; z-index: 1; touch-action: pan-y; }
.grid-fade {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--surface-hover) 1px, transparent 1px),
    linear-gradient(90deg, var(--surface-hover) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(65% 60% at 50% 35%, black, transparent 80%);
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 760px; padding: 0 24px; pointer-events: none; }
.hero-content .badge, .hero-actions { pointer-events: auto; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--surface-border); background: var(--surface-hover);
  border-radius: 999px; padding: 6px 14px; font-size: 12px; color: var(--ink-300);
}
.badge svg { color: var(--brand-300); }
.hero h1 { font-size: clamp(42px, 7vw, 76px); line-height: 1.05; letter-spacing: -0.02em; margin-top: 26px; font-weight: 500; }
.text-gradient {
  background: linear-gradient(120deg, var(--ink-100) 10%, var(--brand-300) 60%, var(--brand-400) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin: 22px auto 0; max-width: 480px; color: var(--ink-500); font-size: 16.5px; line-height: 1.65; }
.hero-actions { margin-top: 34px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; cursor: pointer;
  padding: 13px 26px; border-radius: 12px; font-size: 14px; font-weight: 600;
  transition: transform .2s, box-shadow .2s, background .2s; border: none; font-family: var(--font-sans);
}
.btn-primary { background: linear-gradient(135deg, var(--brand-400), var(--brand-600)); color: #fff; box-shadow: 0 8px 30px -8px #e85d0a55; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -10px #e85d0a77; }
.btn-secondary { background: var(--surface-hover); color: var(--ink-100); border: 1px solid var(--surface-border); }
.btn-secondary:hover { background: #ffffff14; transform: translateY(-2px); }

.scroll-hint { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2; }
.scroll-hint span { display: block; width: 1.5px; height: 40px; background: linear-gradient(to bottom, transparent, var(--brand-400)); animation: scrollpulse 2s ease-in-out infinite; }
@keyframes scrollpulse { 0%,100% { opacity: .2; transform: scaleY(.6);} 50% { opacity: 1; transform: scaleY(1);} }

/* ---------- SECCIONES ---------- */
.section { position: relative; padding: 120px 24px; max-width: 1200px; margin: 0 auto; }
.section-alt { background: radial-gradient(ellipse at 70% 20%, #131419, var(--base-950)); border-block: 1px solid var(--surface-border-weak); }
.section-alt.split { max-width: none; }
.split { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

.section-eyebrow { color: var(--brand-400); font-size: 12px; letter-spacing: .28em; text-transform: uppercase; font-weight: 600; margin-bottom: 16px; }
.section-title { font-family: var(--font-display); font-size: clamp(30px, 4.5vw, 48px); line-height: 1.1; letter-spacing: -0.02em; font-weight: 500; }
.section-body { margin-top: 18px; color: var(--ink-500); line-height: 1.7; max-width: 460px; }

/* ---------- COLECCIÓN ---------- */
.collection-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.watch-card {
  border: 1px solid var(--surface-border-weak); border-radius: 20px;
  background: var(--base-900); overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.8,.25,1), box-shadow .35s, border-color .35s;
  transform-style: preserve-3d;
}
.watch-card:hover { transform: translateY(-6px); border-color: var(--surface-border); box-shadow: 0 24px 60px -20px #000000aa; }
.watch-stage { height: 260px; position: relative; display: grid; place-items: center; overflow: hidden; }
.stage-gold   { background: radial-gradient(circle at 50% 60%, #2a2115, #12100c); }
.stage-silver { background: radial-gradient(circle at 50% 60%, #1c202a, #0e1015); }
.stage-black  { background: radial-gradient(circle at 50% 60%, #17181d, #0a0a0c); }
.mini-watch { width: 200px; height: 200px; cursor: grab; }
.mini-watch:active { cursor: grabbing; }
.watch-info { padding: 22px; border-top: 1px solid var(--surface-border-weak); }
.watch-info h3 { font-size: 21px; font-weight: 500; }
.watch-info p { margin-top: 8px; font-size: 13.5px; color: var(--ink-500); line-height: 1.55; }
.watch-meta { margin-top: 16px; display: flex; align-items: center; justify-content: space-between; }
.price { font-family: var(--font-display); font-size: 19px; color: var(--brand-300); }
.tag { font-size: 11px; color: var(--ink-500); border: 1px solid var(--surface-border-weak); padding: 4px 10px; border-radius: 999px; }

/* ---------- MOVIMIENTO ---------- */
.movement-stage { position: relative; border-radius: 24px; border: 1px solid var(--surface-border-weak); background: var(--base-950); overflow: hidden; }
#movement3d { width: 100%; height: 460px; display: block; cursor: grab; }
#movement3d:active { cursor: grabbing; }
.stage-caption { position: absolute; bottom: 14px; left: 0; right: 0; text-align: center; font-size: 12px; color: var(--ink-600); pointer-events: none; }

.spec-list { margin-top: 28px; border-top: 1px solid var(--surface-border-weak); }
.spec-list li { list-style: none; display: flex; justify-content: space-between; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--surface-border-weak); }
.spec-list strong { font-weight: 500; color: var(--ink-500); font-size: 13px; letter-spacing: .04em; }
.spec-list span { font-family: var(--font-display); font-size: 17px; }

/* ---------- MATERIALES ---------- */
.materials-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.material-card { border: 1px solid var(--surface-border-weak); border-radius: 16px; padding: 26px; background: var(--base-900); transition: transform .3s, border-color .3s; }
.material-card:hover { transform: translateY(-4px); border-color: var(--surface-border); }
.material-num { font-family: var(--font-display); color: var(--brand-400); font-size: 13px; letter-spacing: .2em; }
.material-card h3 { margin-top: 14px; font-size: 17px; font-weight: 600; }
.material-card p { margin-top: 8px; font-size: 13.5px; color: var(--ink-500); line-height: 1.6; }

/* ---------- FOOTER ---------- */
.footer { position: relative; text-align: center; padding: 140px 24px 60px; overflow: hidden; border-top: 1px solid var(--surface-border-weak); }
.footer h2 { font-size: clamp(34px, 5vw, 58px); font-weight: 500; letter-spacing: -0.02em; }
.footer > p:not(.footer-fine) { margin-top: 16px; color: var(--ink-500); font-size: 15px; }
.waitlist { margin-top: 36px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.waitlist input {
  background: var(--base-900); border: 1px solid var(--surface-border); border-radius: 12px;
  padding: 13px 18px; color: var(--ink-100); font-size: 14px; width: min(320px, 100%); font-family: var(--font-sans);
  outline: none; transition: border-color .2s;
}
.waitlist input:focus { border-color: var(--brand-500); }
.footer-fine { margin-top: 72px; font-size: 12px; color: var(--ink-600); }

/* ---------- MÓVIL ---------- */
@media (max-width: 720px) {
  .section { padding: 80px 20px; }
  .hero-content { padding-top: 70px; }
  .hero h1 { font-size: clamp(34px, 10vw, 44px); }
  .split { gap: 40px; }
  #movement3d { height: 340px; }
  .mini-watch { width: 160px; height: 160px; }
  .watch-stage { height: 220px; }
}

/* ---------- ANIMACIONES reveal + float ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(.2,.8,.25,1), transform .8s cubic-bezier(.2,.8,.25,1); }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .24s; }
.delay-3 { transition-delay: .36s; }

@keyframes float-y { from { transform: translateY(-6px); } to { transform: translateY(6px); } }