:root {
  color-scheme: dark;
  --ink: #f8f1e4;
  --muted: #bcb3a4;
  --line: rgba(255, 255, 255, 0.18);
  --black: #080808;
  --red: #c9141f;
  --gold: #c6a15b;
  --paper: #efe7d8;
  --serif: "Bodoni 72", Didot, "Playfair Display", "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

main {
  overflow: visible;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
select {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 62px;
  padding: 12px 16px;
  color: var(--ink);
  background: linear-gradient(180deg, rgba(8, 8, 8, 0.8), rgba(8, 8, 8, 0));
  transition: opacity 180ms ease, background 180ms ease, border-color 180ms ease;
}

.site-header.is-over-scene {
  opacity: 0;
  pointer-events: none;
}

.site-header.is-scrolled {
  background: rgba(8, 8, 8, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 8px;
  align-items: baseline;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand span {
  font-size: 0.78rem;
  font-weight: 800;
}

.brand strong {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
}

.nav-links {
  display: none;
}

.header-action,
.primary-button,
.ghost-button,
.size-form button {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 800;
}

.header-action {
  min-height: 38px;
  padding: 8px 13px;
  background: var(--ink);
  color: #0b0b0b;
  font-size: 0.82rem;
}

.scrub-scene {
  --scrub-progress: 0;
  --air-show: 0;
  --culture-show: 0;
  --leather-show: 0;
  position: relative;
  z-index: 2;
  min-height: 520svh;
  background: var(--black);
}

.hero {
  position: sticky;
  top: 0;
  display: grid;
  align-items: center;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 0;
  overflow: hidden;
  isolation: isolate;
  opacity: 1;
  transition: opacity 160ms linear;
}

.hero.is-fixed {
  position: fixed;
  right: 0;
  left: 0;
  z-index: 20;
}

.hero.is-complete {
  position: fixed;
  right: 0;
  left: 0;
  z-index: 0;
  opacity: 0;
  pointer-events: none;
}

.frame-canvas,
.frame-source,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.frame-canvas {
  z-index: 1;
  display: block;
  background: #080808;
}

.frame-source {
  z-index: -4;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.hero-shade {
  z-index: 2;
  background:
    radial-gradient(circle at 53% 48%, rgba(246, 238, 220, 0.1), rgba(8, 8, 8, 0) 40%),
    linear-gradient(0deg, rgba(8, 8, 8, 0.22), rgba(8, 8, 8, 0.02) 45%, rgba(8, 8, 8, 0.22));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.stat-layer {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}

.stat-card {
  position: absolute;
  width: min(38vw, 170px);
  padding: 11px 12px;
  border: 1px solid rgba(246, 238, 220, 0.22);
  border-radius: 8px;
  background: rgba(8, 8, 8, 0.34);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(14px);
  opacity: var(--show, 0);
  transform: translate3d(0, calc((1 - var(--show, 0)) * 14px), 0);
}

.stat-card span {
  display: block;
  margin-bottom: 5px;
  color: rgba(248, 241, 228, 0.58);
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.stat-card strong {
  display: block;
  color: #fff8eb;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 6vw, 1.75rem);
  font-weight: 600;
  line-height: 0.96;
}

.stat-card-origin {
  --show: var(--origin-stat, 0);
  top: 76px;
  left: 14px;
}

.stat-card-air {
  --show: var(--air-stat, 0);
  right: 14px;
  bottom: 24px;
}

.stat-card-icon {
  --show: var(--icon-stat, 0);
  bottom: 24px;
  left: 14px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 7.5ch;
  margin: 0;
  font-size: clamp(3.25rem, 18vw, 5.2rem);
  line-height: 0.87;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 36rem;
  margin: 18px 0 0;
  color: rgba(247, 243, 234, 0.84);
  font-size: 0.95rem;
  line-height: 1.45;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 22px;
}

.primary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  padding: 12px 18px;
}

.primary-button {
  background: var(--ink);
  color: #0b0b0b;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line);
  color: var(--ink);
}

.intro-band {
  padding: 34px 16px;
  background: var(--ink);
  color: #0a0a0a;
}

.intro-band p {
  max-width: 980px;
  margin: 0;
  font-size: clamp(1.45rem, 9vw, 2.7rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.details,
.history,
.lineup,
.drop {
  padding: 48px 16px;
}

.section-heading {
  display: grid;
  gap: 8px;
  max-width: 860px;
  margin-bottom: 22px;
}

h2 {
  margin: 0;
  font-size: clamp(2.05rem, 11vw, 3.4rem);
  line-height: 0.98;
  text-transform: uppercase;
}

.feature-grid,
.timeline,
.product-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.feature-grid article,
.product-tile {
  min-height: auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #121212;
}

.feature-grid span {
  color: var(--gold);
  font-weight: 900;
}

h3 {
  margin: 30px 0 12px;
  font-size: 1.2rem;
  line-height: 1.05;
}

.feature-grid p,
.timeline p,
.product-tile p,
.drop p {
  margin: 0;
  color: var(--muted);
}

.history {
  background: #f7f3ea;
  color: #0a0a0a;
}

.history .eyebrow {
  color: var(--red);
}

.timeline {
  gap: 0;
  background: rgba(8, 8, 8, 0.18);
  border: 1px solid rgba(8, 8, 8, 0.18);
}

.timeline article {
  min-height: auto;
  padding: 20px;
  background: #f7f3ea;
}

.timeline time {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(8, 8, 8, 0.16);
  border-radius: 999px;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 900;
}

.timeline h3 {
  margin-top: 34px;
}

.timeline p {
  color: #4d4a44;
}

.lineup {
  background: linear-gradient(180deg, #080808 0%, #151515 100%);
}

.product-tile {
  display: grid;
  grid-template-columns: 44px 1fr;
  align-items: center;
  gap: 12px;
}

.product-tile.is-active {
  border-color: rgba(215, 25, 32, 0.72);
}

.product-tile h3 {
  margin: 0;
}

.product-tile p,
.product-tile span {
  grid-column: 2;
}

.product-tile span {
  font-size: 1rem;
  font-weight: 900;
}

.swatch {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
}

.swatch.white {
  background: #f3f0e8;
}

.swatch.black {
  background: #080808;
}

.swatch.cream {
  background: linear-gradient(135deg, #dfd3bd 0 50%, #b57a32 50% 100%);
}

.drop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  background: var(--red);
  color: #fff;
}

.drop .eyebrow,
.drop p {
  color: rgba(255, 255, 255, 0.84);
}

.size-form {
  display: grid;
  gap: 12px;
}

.size-form label {
  font-weight: 850;
  text-transform: uppercase;
}

.size-form select,
.size-form button {
  width: 100%;
}

.size-form select {
  min-height: 50px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 8px;
  background: rgba(8, 8, 8, 0.28);
  color: #fff;
}

.size-form button {
  background: #fff;
  color: #0a0a0a;
}

@media (max-width: 370px) {
  .header-action {
    padding: 8px 10px;
    font-size: 0.76rem;
  }

  h1 {
    font-size: 3rem;
  }

}

@media (min-width: 760px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
    min-height: 72px;
    padding: 18px clamp(18px, 4vw, 52px);
    background: transparent;
  }

  .brand {
    gap: 10px;
  }

  .brand span {
    font-size: 0.92rem;
  }

  .brand strong {
    font-size: 1.35rem;
  }

  .nav-links {
    justify-self: center;
    display: flex;
    gap: clamp(18px, 3vw, 38px);
    color: rgba(247, 243, 234, 0.8);
    font-size: 0.9rem;
    font-weight: 650;
  }

  .header-action {
    min-height: 44px;
    padding: 11px 19px;
    font-size: 1rem;
  }

  .hero {
    height: 100vh;
    min-height: 92vh;
    padding: 90px clamp(18px, 5vw, 72px) 42px;
  }

  .hero-shade {
    background:
      radial-gradient(circle at 55% 46%, rgba(255, 255, 255, 0.1), rgba(8, 8, 8, 0) 42%),
      linear-gradient(0deg, rgba(8, 8, 8, 0.52) 0%, rgba(8, 8, 8, 0.04) 48%, rgba(8, 8, 8, 0.28) 100%);
  }

  .eyebrow {
    margin-bottom: 14px;
    font-size: 0.82rem;
    letter-spacing: 0.14em;
  }

  h1 {
    max-width: 9ch;
    font-size: clamp(4.6rem, 12vw, 12rem);
    line-height: 0.83;
  }

  .hero-copy {
    margin-top: 28px;
    font-size: clamp(1.02rem, 2vw, 1.32rem);
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
  }

  .primary-button,
  .ghost-button {
    width: auto;
    padding: 13px 23px;
  }

  .intro-band {
    display: grid;
    place-items: center;
    min-height: 24vh;
    padding: 42px clamp(18px, 5vw, 72px);
  }

  .intro-band p {
    font-size: clamp(1.7rem, 5vw, 4.6rem);
    text-align: center;
  }

  .details,
  .history,
  .lineup,
  .drop {
    padding: clamp(64px, 9vw, 120px) clamp(18px, 5vw, 72px);
  }

  .section-heading {
    margin-bottom: 34px;
  }

  h2 {
    font-size: clamp(2.2rem, 6vw, 5.4rem);
    line-height: 0.95;
  }

  .feature-grid,
  .product-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .feature-grid article,
  .product-tile {
    min-height: 270px;
    padding: 24px;
  }

  h3 {
    margin-top: 42px;
    font-size: 1.42rem;
  }

  .timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
  }

  .timeline article {
    min-height: 300px;
    padding: 24px;
  }

  .timeline h3 {
    margin-top: 58px;
  }

  .product-tile {
    grid-template-columns: 1fr;
    align-content: space-between;
    align-items: stretch;
    gap: 18px;
  }

  .product-tile p,
  .product-tile span {
    grid-column: auto;
  }

  .product-tile span {
    font-size: 1.35rem;
  }

  .swatch {
    width: 64px;
    height: 64px;
  }

  .drop {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
    gap: 34px;
    align-items: end;
  }

  .size-form select {
    min-height: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}