@import url("https://fonts.googleapis.com/css2?family=Archivo:ital,wdth,wght@0,62..125,100..900;1,62..125,100..900&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --bone: #ece6e1;
  --ink: #161412;
  --ink-2: #4a4440;
  --line: rgba(22, 20, 18, 0.14);
  --accent: #e2475f;
  --paper: #f7f3ef;
  --bg: var(--bone); /* current page background, follows the colourway */
  --gutter: clamp(16px, 4vw, 56px);
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--display);
  font-variation-settings: "wdth" 100;
  font-size: 17px;
  line-height: 1.5;
  overflow-x: clip;
  transition: background-color 0.8s ease;
}
body::after { /* film grain */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 50; opacity: 0.07; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
a { color: inherit; }
img { max-width: 100%; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); display: flex; gap: 10px; align-items: center; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); transition: background 0.6s; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px var(--gutter);
}
.nav { transition: background-color 0.4s, backdrop-filter 0.4s; }
.nav.scrolled { background: color-mix(in srgb, var(--bone) 72%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.brand { font-weight: 850; font-variation-settings: "wdth" 125; letter-spacing: -0.02em; font-size: 20px; text-decoration: none; display: flex; align-items: baseline; gap: 6px; }
.brand sup { font-family: var(--mono); font-weight: 400; font-size: 10px; letter-spacing: 0.1em; color: var(--accent); transition: color 0.6s; }
.nav ul { list-style: none; display: flex; gap: clamp(14px, 3vw, 34px); margin: 0; padding: 0; }
.nav a.link { text-decoration: none; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; padding: 6px 0; border-bottom: 1.5px solid transparent; }
.nav a.link:hover, .nav a.link[aria-current="page"] { border-color: var(--ink); }
.demo-tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; border: 1px solid var(--line); padding: 4px 8px; border-radius: 99px; color: var(--ink-2); white-space: nowrap; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 12px; text-decoration: none; cursor: pointer;
  background: var(--ink); color: var(--paper); border: 0; border-radius: 99px;
  padding: 15px 24px; font-weight: 600; font-size: 15px; letter-spacing: 0.01em;
  transition: transform 0.25s ease, background 0.4s;
}
.btn:hover { transform: translateY(-2px); background: var(--accent); }
.btn .arrow { transition: transform 0.25s; }
.btn:hover .arrow { transform: translateX(4px); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }

/* ---------- home: fixed stage ---------- */
#stage { position: fixed; inset: 0; width: 100%; height: 100%; height: 100lvh; z-index: 1; pointer-events: none; display: block; }
.no-webgl #stage { display: none; }
.fallback { display: none; }
.no-webgl .fallback { display: block; }

.loader {
  position: fixed; inset: 0; z-index: 60; background: var(--bone);
  display: grid; place-items: center; transition: opacity 0.7s ease, visibility 0.7s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader .inner { width: min(280px, 70vw); }
.loader .bar { height: 2px; background: var(--line); margin-top: 12px; overflow: hidden; }
.loader .bar i { display: block; height: 100%; width: 0; background: var(--ink); transition: width 0.2s; }

main.scroller { position: relative; z-index: 2; }
.scene { min-height: 100vh; min-height: 100svh; display: grid; align-items: center; padding: 110px var(--gutter) 70px; position: relative; }
.scene .copy { max-width: 470px; }
.scene.right { justify-items: end; }
.scene.center { justify-items: center; text-align: center; }
.scene.hero .copy { max-width: min(700px, 54vw); }
.scene.cta { align-items: end; padding-top: 46vh; padding-bottom: 14vh; }

.display {
  font-weight: 860; font-variation-settings: "wdth" 72; text-transform: uppercase;
  font-size: clamp(54px, 9.2vw, 150px); line-height: 0.86; letter-spacing: -0.015em; margin: 18px 0 22px;
}
.display em { font-style: italic; font-weight: 300; font-variation-settings: "wdth" 100; text-transform: none; color: var(--accent); transition: color 0.6s; letter-spacing: -0.03em; }
.h2 { font-weight: 820; font-variation-settings: "wdth" 80; text-transform: uppercase; font-size: clamp(40px, 6vw, 88px); line-height: 0.9; margin: 14px 0 18px; letter-spacing: -0.01em; }
.lede { font-size: clamp(17px, 1.4vw, 20px); color: var(--ink-2); max-width: 40ch; margin: 0 0 28px; }
.specs { display: grid; grid-template-columns: auto 1fr; gap: 0; margin: 24px 0 0; border-top: 1px solid var(--line); max-width: 420px; }
.specs dt, .specs dd { margin: 0; padding: 11px 0; border-bottom: 1px solid var(--line); }
.specs dt { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); padding-right: 28px; }
.specs dd { font-weight: 600; }

/* giant background word in hero */
.ghost-word {
  position: absolute; z-index: -1; left: 50%; top: 50%; transform: translate(-50%, -46%);
  font-weight: 900; font-variation-settings: "wdth" 125; font-size: 27vw; line-height: 1; letter-spacing: -0.04em;
  color: transparent; -webkit-text-stroke: 1.5px var(--line); white-space: nowrap; pointer-events: none; user-select: none;
}
.hero-meta { position: absolute; left: var(--gutter); right: var(--gutter); bottom: 26px; display: flex; justify-content: space-between; align-items: end; gap: 16px; }
.scroll-cue { display: flex; align-items: center; gap: 10px; }
.scroll-cue i { width: 1px; height: 38px; background: var(--ink); transform-origin: top; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* hotspots projected from the 3D model */
.hotspots { position: fixed; inset: 0; z-index: 3; pointer-events: none; overflow: hidden; }
.hotspot .num { display: none; }
.hs-list { display: none; }
.hotspot { position: absolute; left: 0; top: 0; opacity: 0; transition: opacity 0.35s; will-change: transform; }
.hotspot .pin { position: absolute; left: -7px; top: -7px; width: 14px; height: 14px; border-radius: 50%; background: var(--paper); box-shadow: 0 0 0 1.5px var(--ink); }
.hotspot .pin::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 1px solid var(--ink); animation: ping 2.2s ease-out infinite; }
@keyframes ping { from { transform: scale(0.5); opacity: 0.8; } to { transform: scale(1.6); opacity: 0; } }
.hotspot .card { position: absolute; width: 210px; background: var(--paper); padding: 12px 14px; border-radius: 4px; box-shadow: 0 10px 30px -12px rgba(0,0,0,0.25); font-size: 14px; line-height: 1.4; }
.hotspot .card b { display: block; font-size: 15px; margin-bottom: 2px; }
.hotspot[data-side="right"] .card { left: 24px; top: -20px; }
.hotspot[data-side="left"] .card { right: 24px; top: -20px; }
.hotspot[data-side="below"] .card { left: -105px; top: 26px; }

/* configurator */
.swatches { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 22px; }
.swatch {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  background: transparent; border: 1.5px solid var(--line); border-radius: 99px; padding: 8px 16px 8px 8px; font-weight: 600; font-size: 15px;
  transition: border-color 0.25s, background 0.25s;
}
.swatch i { width: 26px; height: 26px; border-radius: 50%; background: var(--c); box-shadow: inset 0 0 0 3px var(--paper); border: 1px solid var(--line); }
.swatch:hover { border-color: var(--ink-2); }
.swatch[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.swatch[aria-pressed="true"] i { box-shadow: inset 0 0 0 3px var(--ink); border-color: var(--ink); }
.drag-zone { position: absolute; z-index: 2; touch-action: pan-y; cursor: grab; border-radius: 12px; }
.drag-zone:active { cursor: grabbing; }
.drag-hint { position: absolute; left: 50%; bottom: 10%; transform: translateX(-50%); display: flex; gap: 8px; align-items: center; color: var(--ink-2); pointer-events: none; }

/* under-the-hood panel */
.hood { position: fixed; z-index: 45; right: 16px; bottom: 16px; font-family: var(--mono); font-size: 11.5px; }
.hood summary { list-style: none; cursor: pointer; background: var(--ink); color: var(--paper); padding: 8px 12px; border-radius: 99px; letter-spacing: 0.08em; text-transform: uppercase; text-align: center; }
.hood summary::-webkit-details-marker { display: none; }
.hood[open] summary { border-radius: 10px 10px 0 0; }
.hood .body { background: var(--paper); border: 1px solid var(--line); border-top: 0; border-radius: 0 0 10px 10px; padding: 12px 14px; width: 260px; }
.hood dl { display: grid; grid-template-columns: 1fr auto; gap: 6px 14px; margin: 0; }
.hood dt { color: var(--ink-2); }
.hood dd { margin: 0; text-align: right; font-weight: 500; }
.hood p { margin: 10px 0 0; color: var(--ink-2); line-height: 1.45; text-transform: none; letter-spacing: 0; }

/* footer */
.footer { position: relative; z-index: 2; background: var(--ink); color: var(--paper); padding: 56px var(--gutter) 34px; }
.footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer h4 { font-family: var(--mono); font-weight: 400; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: #9b938d; margin: 0 0 12px; }
.footer a { color: var(--paper); }
.footer p, .footer li { font-size: 14px; color: #cfc7c0; margin: 0 0 6px; }
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer .big { font-weight: 880; font-variation-settings: "wdth" 125; font-size: clamp(56px, 14vw, 200px); line-height: 0.8; letter-spacing: -0.04em; margin: 48px 0 0; color: var(--paper); }
.footer .legal { border-top: 1px solid #3a3531; margin-top: 26px; padding-top: 16px; font-size: 12px; color: #9b938d; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; } .reveal.d2 { transition-delay: 0.16s; } .reveal.d3 { transition-delay: 0.24s; }

/* ---------- sub pages ---------- */
.page { padding: 110px var(--gutter) 80px; position: relative; z-index: 2; }
.product { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(24px, 4vw, 64px); align-items: start; }
.viewer { position: sticky; top: 90px; aspect-ratio: 1 / 1; max-height: calc(100vh - 120px); width: 100%; background: var(--paper); border-radius: 18px; overflow: hidden; }
.viewer canvas { width: 100%; height: 100%; display: block; touch-action: pan-y; cursor: grab; }
.viewer .vhint { position: absolute; left: 18px; bottom: 16px; color: var(--ink-2); pointer-events: none; }
.viewer .vtools { position: absolute; right: 14px; bottom: 12px; display: flex; gap: 8px; }
.icon-btn { background: var(--bone); border: 1px solid var(--line); border-radius: 99px; padding: 7px 12px; cursor: pointer; font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.icon-btn:hover { border-color: var(--ink); }
.viewer .vload { position: absolute; inset: 0; display: grid; place-items: center; color: var(--ink-2); }
.price { font-family: var(--mono); font-size: 18px; margin: 0 0 22px; }
.sizes { display: grid; grid-template-columns: repeat(auto-fill, minmax(62px, 1fr)); gap: 8px; margin: 10px 0 24px; }
.sizes button { padding: 12px 0; border: 1.5px solid var(--line); background: transparent; border-radius: 8px; cursor: pointer; font-family: var(--mono); font-size: 13px; }
.sizes button:hover { border-color: var(--ink-2); }
.sizes button[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.acc { border-top: 1px solid var(--line); margin-top: 30px; }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary { cursor: pointer; padding: 16px 0; font-weight: 650; list-style: none; display: flex; justify-content: space-between; }
.acc summary::after { content: "+"; font-family: var(--mono); }
.acc details[open] summary::after { content: "–"; }
.acc details p { margin: 0 0 16px; color: var(--ink-2); }
.form-note { font-size: 14px; color: var(--ink-2); margin-top: 14px; min-height: 1.5em; }

.story-hero { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: end; border-bottom: 1.5px solid var(--ink); padding-bottom: 40px; }
.story-body { display: grid; grid-template-columns: 220px 1fr; gap: clamp(24px, 5vw, 80px); padding: 50px 0; border-bottom: 1px solid var(--line); }
.story-body p { font-size: clamp(18px, 1.6vw, 22px); line-height: 1.55; max-width: 60ch; margin: 0 0 18px; }
.numbers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-bottom: 1px solid var(--line); }
.numbers div { padding: 34px 20px 34px 0; }
.numbers div + div { border-left: 1px solid var(--line); padding-left: 24px; }
.numbers b { display: block; font-weight: 860; font-variation-settings: "wdth" 75; font-size: clamp(48px, 7vw, 96px); line-height: 0.9; }
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(24px, 5vw, 80px); padding-top: 56px; }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.field input, .field textarea, .field select { font: inherit; padding: 13px 14px; border: 1.5px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); width: 100%; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--ink); outline: none; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .product, .story-hero, .contact { grid-template-columns: 1fr; }
  .viewer { position: relative; top: 0; aspect-ratio: 4 / 3.4; }
  .story-body { grid-template-columns: 1fr; gap: 10px; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .footer .cols > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav { padding-top: 14px; padding-bottom: 14px; background: linear-gradient(var(--bone) 60%, transparent); }
  .nav .demo-tag { display: none; }
  .brand { font-size: 18px; }
  .nav ul { gap: 14px; }
  .nav a.link { font-size: 11px; letter-spacing: 0.06em; }
  .scene, .scene.right { align-items: end; justify-items: start; padding-top: 52svh; padding-bottom: 48px; }
  .scene.hero { padding-top: 48svh; }
  .scene.center { justify-items: center; }
  .scene .copy, .scene.hero .copy { max-width: none; }
  /* the shoe stays fixed while copy scrolls over it: a frosted card keeps text readable */
  main.scroller .scene .copy {
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    -webkit-backdrop-filter: blur(14px) saturate(1.1);
    backdrop-filter: blur(14px) saturate(1.1);
    padding: 18px 16px 20px; margin: 0 -10px; border-radius: 18px;
    transition: background-color 0.8s ease;
  }
  .no-webgl main.scroller .scene .copy { background: none; backdrop-filter: none; -webkit-backdrop-filter: none; padding: 0; margin: 0; }
  .scene.cta { padding-top: 46svh; padding-bottom: 60px; }
  .display { font-size: clamp(46px, 14vw, 72px); margin: 12px 0 14px; }
  .lede { margin-bottom: 20px; }
  .ghost-word { top: 28%; font-size: 40vw; }
  .hero-meta { display: none; }
  .hotspot .card { display: none; }
  .hotspot .num { display: block; position: absolute; left: 12px; top: -9px; font-family: var(--mono); font-size: 12px; background: var(--ink); color: var(--paper); border-radius: 99px; padding: 1px 7px; }
  .hs-list { display: grid; gap: 10px; list-style: none; padding: 0; margin: 4px 0 0; counter-reset: hs; }
  .hs-list li { counter-increment: hs; display: grid; grid-template-columns: 26px 1fr; font-size: 15px; color: var(--ink-2); }
  .hs-list li::before { content: counter(hs); font-family: var(--mono); font-size: 12px; background: var(--ink); color: var(--paper); border-radius: 99px; width: 20px; height: 20px; display: grid; place-items: center; margin-top: 2px; }
  .hs-list b { color: var(--ink); }
  .numbers { grid-template-columns: 1fr; }
  .numbers div + div { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .row2 { grid-template-columns: 1fr; }
  .hood { right: 10px; bottom: 10px; font-size: 10px; }
  .hood summary { padding: 6px 10px; }
  .hood .body { width: min(260px, calc(100vw - 20px)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}
.muted { color: var(--ink-2); }
@media (max-width: 720px) { .hide-sm { display: none; } }