/* ==========================================================================
   TRIPLE LEAD / Apparel for conservation.
   Tokens follow the Triple Lead design system (Ink theme, dark first).
   Square everything. No shadows. No gradients.
   ========================================================================== */

@view-transition { navigation: auto; }

:root {
  /* Brand */
  --brand-black: #000000;
  --brand-cream: #fbf7eb;
  --board: #080a09;
  --board-muted: #8b9384;
  --board-rule: #7f8c70;

  /* Ink theme */
  --surface: #080a09;
  --surface-raised: #141816;
  --ink: #fbf7eb;
  --ink-muted: #8b9384;
  --rule: #7f8c70;
  --forest: #183d2b;
  --forest-deep: #133222;
  --accent: #89a743;
  --on-accent: #080a09;
  --focus-ring: var(--accent);

  /* Type */
  --f-wordmark: "Anton", "Oswald", Impact, sans-serif;
  --f-display: "Oswald", "Arial Narrow", sans-serif;
  --f-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;

  /* Space */
  --space-1: 4px;
  --space-2: 8px;
  --space-4: 16px;
  --space-6: 24px;
  --space-10: 40px;
  --g: var(--space-6);
  --section: calc(var(--space-10) * 3);

  --radius-sm: 4px;
  --head-h: 72px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);

  color-scheme: dark;
}

@media (min-width: 768px) {
  :root { --g: var(--space-10); --section: calc(var(--space-10) * 4); --head-h: 80px; }
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--surface);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--surface);
  color: var(--ink);
  font: 400 16px/24px var(--f-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

main { display: block; overflow-x: clip; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
p, h1, h2, h3, h4, figure, dl, dd, ul, ol, fieldset { margin: 0; }
ul, ol { padding: 0; list-style: none; }
b { font-weight: inherit; }
::selection { background: var(--accent); color: var(--on-accent); }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

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

.skip {
  position: fixed; left: var(--g); top: var(--space-4); z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--accent); color: var(--on-accent);
  border-radius: var(--radius-sm);
  transform: translateY(-300%);
}
.skip:focus { transform: none; }

/* ---------- Type styles ---------- */

.t-wordmark {
  font-family: var(--f-wordmark);
  font-weight: 400;
  line-height: .9;
  text-transform: uppercase;
}
.t-display {
  font: 500 clamp(28px, 4.6vw, 72px)/1.14 var(--f-display);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.t-headline {
  font: 600 32px/38px var(--f-display);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.t-index {
  font: 600 28px/38px var(--f-display);
  font-variant-numeric: tabular-nums;
}
.t-title {
  font: 700 15px/20px var(--f-sans);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.t-label {
  font: 400 12px/16px var(--f-sans);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.muted { color: var(--ink-muted); }
.t-label.handle { text-transform: none; letter-spacing: .08em; }
.ink { color: var(--ink); }

/* ---------- Buttons & links ---------- */

.btn {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  min-height: 48px;
  padding: 0 var(--space-6);
  border: 1px solid var(--brand-cream);
  border-radius: var(--radius-sm);
  font: 700 15px/20px var(--f-sans);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  overflow: hidden;
  white-space: nowrap;
  transition: color .45s var(--ease), border-color .45s var(--ease);
}
.btn::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: var(--brand-cream);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform .55s var(--ease);
}
.btn:hover { color: var(--board); }
.btn:hover::before { transform: scaleX(1); transform-origin: 0 50%; }
.btn--accent { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn--accent:hover { border-color: var(--brand-cream); }
.btn--block { width: 100%; }
.btn--sm { min-height: 44px; padding: 0 var(--space-4); }

.u-link { position: relative; }
.u-link::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 2px;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: 100% 50%;
  transition: transform .5s var(--ease);
}
.u-link:hover::after { transform: scaleX(1); transform-origin: 0 50%; }

/* ---------- Header ---------- */

.site-head {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--head-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-inline: var(--g);
  border-bottom: 1px solid transparent;
  transition: transform .6s var(--ease), background-color .4s var(--ease), border-color .4s var(--ease);
  view-transition-name: site-head;
}
.site-head.is-solid { background: var(--surface); border-bottom-color: var(--forest); }
.site-head.is-hidden { transform: translateY(-101%); }
.nav-open .site-head { background: var(--surface); transform: none; }

.brand { display: inline-flex; align-items: center; gap: var(--space-4); min-height: 48px; }
.brand__mark { width: auto; height: 44px; aspect-ratio: 1388 / 1456; }
.brand__name { font: 700 15px/20px var(--f-sans); letter-spacing: .12em; }

.nav { display: none; }
.nav ul { display: flex; align-items: center; gap: var(--space-6); }
.nav a:not(.btn) {
  position: relative;
  display: inline-flex; align-items: center; min-height: 44px;
  font: 400 12px/16px var(--f-sans); letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink);
}
.nav a:not(.btn)::after {
  content: "";
  position: absolute; left: 0; right: .16em; bottom: 10px;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: 100% 50%;
  transition: transform .5s var(--ease);
}
.nav a:not(.btn):hover::after { transform: scaleX(1); transform-origin: 0 50%; }

.menu-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  min-height: 44px; min-width: 44px; padding: 0 var(--space-2);
  margin-right: calc(var(--space-2) * -1);
  font: 400 12px/16px var(--f-sans); letter-spacing: .16em; text-transform: uppercase;
}
.menu-btn__bars { display: grid; gap: 5px; width: 22px; }
.menu-btn__bars i { display: block; height: 1px; background: var(--ink); transition: transform .4s var(--ease); }
.nav-open .menu-btn__bars i:first-child { transform: translateY(3px) rotate(45deg); }
.nav-open .menu-btn__bars i:last-child { transform: translateY(-3px) rotate(-45deg); }

@media (min-width: 1024px) {
  .nav { display: block; }
  .menu-btn { display: none; }
}

.drawer {
  position: fixed; inset: 0; z-index: 45;
  background: var(--surface);
  padding: calc(var(--head-h) + var(--space-6)) var(--g) calc(var(--space-6) + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-10);
  overflow-y: auto;
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .7s var(--ease), visibility 0s linear .7s;
}
.nav-open .drawer { visibility: visible; clip-path: inset(0); transition: clip-path .7s var(--ease), visibility 0s; }
.nav-open { overflow: hidden; }
.drawer ol { display: grid; border-top: 1px solid var(--rule); }
.drawer li { border-bottom: 1px solid var(--rule); }
.drawer li a {
  display: flex; align-items: baseline; gap: var(--space-4);
  padding: var(--space-4) 0;
  font: 500 clamp(32px, 9vw, 48px)/1.1 var(--f-display);
  letter-spacing: .06em; text-transform: uppercase;
}
.drawer li a .t-label { min-width: 2.5em; }
.drawer__foot { display: grid; gap: var(--space-4); }
@media (min-width: 1024px) { .drawer { display: none; } }

/* ---------- Scroll ruler ---------- */

.ruler {
  position: fixed;
  right: 8px; top: 29vh;
  height: 42vh;
  width: 30px;
  z-index: 40;
  pointer-events: none;
  display: none;
}
@media (min-width: 1100px) and (pointer: fine) {
  .ruler { display: block; }
}
.ruler__tick { position: absolute; right: 0; width: 6px; height: 1px; background: var(--rule); }
.ruler__tick.is-major { width: 12px; }
.ruler__marker {
  position: absolute; right: 0; top: 0;
  width: 18px; height: 2px;
  background: var(--brand-cream);
  transform: translateY(calc(var(--p, 0) * 42vh));
  will-change: transform;
}
.ruler__label {
  position: absolute; right: 24px; top: 8px;
  writing-mode: vertical-rl;
  font: 400 12px/16px var(--f-sans);
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- Layout helpers ---------- */

.wrap { padding-inline: var(--g); }
.section { position: relative; padding-block: var(--section); }

.sec-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(40px, auto) minmax(0, 1fr);
  column-gap: var(--space-6);
  row-gap: var(--space-2);
  align-items: start;
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-10);
}
.sec-head::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--rule);
  transform-origin: 0 50%;
  transition: transform 1.4s var(--ease);
}
.sec-head__titles { display: grid; gap: var(--space-1); }
.sec-head__aside { grid-column: 1 / -1; }
@media (min-width: 768px) {
  .sec-head { grid-template-columns: minmax(56px, auto) minmax(0, 1fr) auto; }
  .sec-head__aside { grid-column: auto; text-align: right; padding-top: var(--space-2); }
}

/* ---------- Reveal ---------- */

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s var(--ease), transform 1.2s var(--ease);
  transition-delay: var(--d, 0s);
}
html.js [data-reveal].is-in { opacity: 1; transform: none; }

html.js .sec-head[data-reveal] { opacity: 1; transform: none; }
html.js .sec-head[data-reveal]::after { transform: scaleX(0); }
html.js .sec-head[data-reveal].is-in::after { transform: scaleX(1); }
html.js .sec-head[data-reveal] > * {
  opacity: 0; transform: translateY(16px);
  transition: opacity .9s var(--ease), transform 1.1s var(--ease);
}
html.js .sec-head[data-reveal] > :nth-child(2) { transition-delay: .08s; }
html.js .sec-head[data-reveal] > :nth-child(3) { transition-delay: .16s; }
html.js .sec-head[data-reveal].is-in > * { opacity: 1; transform: none; }

.mask { display: block; overflow: clip; padding-bottom: .06em; margin-bottom: -.06em; }
.mask > span { display: block; }
html.js [data-reveal="mask"] { opacity: 1; transform: none; }
html.js [data-reveal="mask"] .mask > span {
  transform: translateY(110%);
  transition: transform 1.3s var(--ease);
  transition-delay: calc(var(--d, 0s) + var(--i, 0) * .09s);
}
html.js [data-reveal="mask"].is-in .mask > span { transform: none; }

/* ==========================================================================
   HOME
   ========================================================================== */

/* ---------- Hero: the campaign layout ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  overflow: clip;
  padding-top: var(--head-h);
}
.hero__stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 5vh, 56px);
  padding-block: var(--space-10);
}
.hero__mark { width: clamp(72px, 8vw, 120px); aspect-ratio: 1388 / 1456; will-change: transform; }
.hero__mark img { width: 100%; height: 100%; }
.hero__band { position: relative; width: 100%; display: grid; place-items: center; }
.hero__wordmark {
  display: flex;
  justify-content: center;
  gap: .16em;
  font-size: 27.5vw;
  color: var(--forest-deep);
  white-space: nowrap;
  user-select: none;
  pointer-events: none;
}
.hero__wordmark > span { display: block; will-change: transform; }
.hero__line {
  position: absolute;
  left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  text-align: center;
  font-size: clamp(22px, 4.5vw, 76px);
  line-height: 1.1;
  color: var(--brand-cream);
  padding-inline: var(--g);
}
.hero__line .word { display: inline-block; white-space: nowrap; }
.hero__line .ch { display: inline-block; }
.hero__foot {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: var(--space-4);
  padding: 0 var(--g) var(--space-6);
}
.hero__foot > :last-child { text-align: right; }
.scroll-cue { display: grid; justify-items: center; gap: var(--space-2); }
.scroll-cue i {
  display: block; width: 1px; height: 40px; background: var(--rule);
  animation: cue 2.4s var(--ease-in-out) infinite;
}
@keyframes cue {
  0% { transform: scaleY(0); transform-origin: 50% 0; }
  45% { transform: scaleY(1); transform-origin: 50% 0; }
  55% { transform: scaleY(1); transform-origin: 50% 100%; }
  100% { transform: scaleY(0); transform-origin: 50% 100%; }
}

@media (max-width: 767px) {
  .hero__wordmark { flex-direction: column; align-items: center; font-size: 47vw; line-height: .86; gap: 0; }
  .hero__line { font-size: clamp(26px, 8.2vw, 40px); }
  .hero__foot { grid-template-columns: 1fr 1fr; }
  .hero__foot .scroll-cue { display: none; }
}

/* Intro choreography (JS adds .is-ready to <body>) */
html.js .hero__mark { transition: clip-path 1.4s var(--ease), transform 1.6s var(--ease); }
html.js body:not(.is-ready) .hero__mark { clip-path: inset(100% 0 0 0); transform: translateY(24px); }
html.js body.is-ready .hero__mark { clip-path: inset(0); }
html.js .hero__wordmark > span { transition: translate 2s var(--ease) .15s, opacity 1.4s var(--ease) .15s; }
html.js body:not(.is-ready) .hero__wordmark > span:first-child { translate: -12% 0; opacity: 0; }
html.js body:not(.is-ready) .hero__wordmark > span:last-child { translate: 12% 0; opacity: 0; }
html.js .hero__line .ch {
  opacity: 0; transform: translateY(.45em);
  transition: opacity .8s var(--ease), transform 1s var(--ease);
  transition-delay: calc(.55s + var(--i) * 22ms);
}
html.js body.is-ready .hero__line .ch { opacity: 1; transform: none; }
html.js .hero__foot { transition: opacity 1.2s var(--ease) 1.3s; }
html.js body:not(.is-ready) .hero__foot { opacity: 0; }

/* ---------- I. The label ---------- */

.statement {
  font: 500 clamp(28px, 4.4vw, 68px)/1.12 var(--f-display);
  letter-spacing: .04em;
  text-transform: uppercase;
  max-width: 24ch;
}
.statement .w { color: var(--ink-muted); transition: color .5s var(--ease); }
html:not(.js) .statement .w,
.statement .w.is-on { color: var(--ink); }
.dye {
  display: inline-block;
  width: .56em; height: .56em;
  margin-left: .14em;
  vertical-align: .04em;
  border: 1px solid var(--brand-cream);
  background: var(--c);
}
.dyes { white-space: nowrap; padding-left: .16em; }
.label-grid {
  display: grid;
  gap: var(--space-10);
  margin-top: calc(var(--space-10) * 2);
}
.label-grid p { max-width: 42ch; }
.label-grid .t-label { display: block; margin-bottom: var(--space-4); }
@media (min-width: 768px) {
  .label-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .label-grid > :nth-child(1) { grid-column: 5 / span 4; }
  .label-grid > :nth-child(2) { grid-column: 9 / span 4; }
}

/* Marquee band */
.band {
  border-block: 1px solid var(--rule);
  overflow: clip;
  padding-block: var(--space-6);
  user-select: none;
}
.band__track {
  display: flex;
  width: max-content;
  animation: band 60s linear infinite;
}
.band__track > span {
  display: block;
  padding-right: .5em;
  font: 500 clamp(40px, 7.5vw, 120px)/1.05 var(--f-display);
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.band__track .slash { color: var(--rule); padding-inline: .2em; }
@keyframes band { to { transform: translateX(-50%); } }

/* ---------- II. The studies: horizontal folio ---------- */

.folio { position: relative; }
.folio__top { padding-top: var(--section); }
.folio__viewport {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
}
.folio__viewport::-webkit-scrollbar { display: none; }
.folio__track {
  display: flex;
  gap: var(--space-4);
  width: max-content;
  padding-inline: var(--g);
}
.fplate {
  position: relative;
  flex: 0 0 auto;
  width: min(84vw, 480px);
  display: grid;
  gap: var(--space-6);
  scroll-snap-align: start;
  scroll-margin-left: var(--g);
  padding-bottom: var(--space-4);
}
.fplate__stage { position: relative; display: grid; gap: var(--space-4); align-content: center; padding-top: var(--space-6); }
.fplate__garments { position: relative; display: flex; justify-content: center; align-items: flex-end; }
.fplate__garments img { width: 54%; will-change: transform; }
.fplate__front { position: relative; z-index: 2; }
.fplate__back { margin-left: -8%; }
.fplate__caps { display: flex; justify-content: center; text-align: center; }
.fplate__caps span { width: 54%; }
.fplate__caps span + span { margin-left: -8%; }
.fplate__num {
  font-size: clamp(96px, 10vw, 168px);
  line-height: .82;
  color: transparent;
  -webkit-text-stroke: 1px var(--brand-cream);
  user-select: none;
  will-change: transform;
}
.fplate__info { position: relative; z-index: 1; display: grid; gap: var(--space-4); align-content: start; }
.fplate__name { font: 600 clamp(32px, 3.2vw, 48px)/1 var(--f-display); letter-spacing: .04em; text-transform: uppercase; }
.fplate__name a { display: block; transition: color .4s var(--ease); }
.fplate__name a:hover { color: var(--accent); }
.fplate__short { color: var(--ink); max-width: 34ch; }
.fplate__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.folio__bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-6) 0;
}
.folio__progress { height: 1px; background: var(--surface-raised); position: relative; overflow: clip; }
.folio__progress i {
  position: absolute; inset: 0;
  background: var(--brand-cream);
  transform: scaleX(var(--fp, .14));
  transform-origin: 0 50%;
}
.folio__index { display: flex; justify-content: space-between; }
.folio__index button {
  display: grid; place-items: center;
  min-width: 44px; min-height: 44px;
  font: 400 12px/16px var(--f-sans); letter-spacing: .16em;
  color: var(--ink-muted);
  transition: color .4s var(--ease);
}
.folio__index button:hover, .folio__index button[aria-current="true"] { color: var(--ink); }

@media (min-width: 1024px) {
  html.js .folio { height: calc(var(--n) * 80vh + 100vh); }
  html.js .folio__pin {
    position: sticky; top: 0;
    height: 100svh;
    min-height: 640px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow: clip;
  }
  html.js .folio__top { padding-top: calc(var(--head-h) + var(--space-6)); }
  html.js .folio__top .sec-head { margin-bottom: 0; }
  html.js .folio__viewport { overflow: visible; scroll-snap-type: none; min-height: 0; min-width: 0; }
  html.js .folio__track { height: 100%; gap: 0; padding-inline: var(--g) 0; will-change: transform; }
  html.js .fplate {
    width: min(1160px, 80vw);
    height: 100%;
    grid-template-columns: minmax(0, 1fr) 300px;
    column-gap: var(--space-10);
    align-items: center;
    padding: var(--space-6) var(--space-10) var(--space-6) 0;
    margin-right: var(--space-10);
    border-right: 1px solid var(--surface-raised);
  }
  html.js .fplate__stage { height: 100%; padding-top: 0; grid-template-rows: minmax(0, 1fr) auto; }
  html.js .fplate__garments img { width: min(47%, calc((100svh - 350px) * .78)); }
  html.js .fplate__caps span { width: min(47%, calc((100svh - 350px) * .78)); }
  html.js .fplate__info { align-content: center; }
  html.js .folio__bar { grid-template-columns: minmax(0, 1fr) auto; align-items: center; column-gap: var(--space-10); padding-block: var(--space-2) var(--space-4); }
  html.js .folio__index { gap: var(--space-2); }
}

/* Swatches (shared) */
.swatches { display: flex; gap: var(--space-4); align-items: stretch; }
.swatches__col { display: grid; gap: var(--space-2); }
.swatch { display: block; width: 28px; height: 28px; border: 1px solid var(--brand-cream); background: var(--c); }
.ticks { display: grid; align-content: space-between; padding-block: 2px; }
.ticks i { display: block; width: 8px; height: 1px; background: var(--rule); }
.ticks i:nth-child(5n + 1) { width: 14px; }
.swatches__names { display: grid; align-content: space-between; padding-block: 6px; }

.board-foot { display: grid; gap: var(--space-2); }
.board-foot__rule { height: 2px; background: var(--forest); }
.board-foot__row { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-4); }

/* ---------- III. The colourways: spectrum ---------- */

.spectrum {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-10);
}
.spectrum li {
  position: relative;
  background: var(--garment);
  color: var(--on);
  overflow: clip;
  transition: flex-grow .9s var(--ease);
}
.spectrum a {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 72px;
  align-items: center;
  gap: var(--space-4);
  min-height: 96px;
  padding: var(--space-2) var(--g);
}
.spectrum__n { font: 600 20px/1 var(--f-display); }
.spectrum__name { font: 600 22px/1.1 var(--f-display); letter-spacing: .06em; }
.spectrum__meta { display: none; }
.spectrum__print { grid-column: 3; grid-row: 1; width: 72px; aspect-ratio: 1; border: 1px solid var(--on); overflow: clip; }
.spectrum__print img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.spectrum a:hover .spectrum__print img { transform: scale(1.08); }

@media (min-width: 900px) {
  .spectrum { flex-direction: row; height: clamp(460px, 74vh, 760px); }
  .spectrum li { flex: 1 1 0; min-width: 0; }
  .spectrum a { position: absolute; inset: 0; display: block; padding: var(--space-6); min-height: 0; }
  .spectrum__n { position: absolute; left: var(--space-6); top: var(--space-6); font-size: 28px; }
  .spectrum__name {
    position: absolute; left: var(--space-6); bottom: var(--space-6);
    writing-mode: vertical-rl; transform: rotate(180deg);
    font-size: clamp(24px, 2.2vw, 36px);
    white-space: nowrap;
  }
  .spectrum__print {
    position: absolute; left: 50%; top: 50%;
    width: min(56%, 46vh);
    translate: -50% -50%;
    opacity: 0; scale: .9;
    transition: opacity .6s var(--ease), scale 1.2s var(--ease);
  }
  .spectrum__meta {
    display: block;
    position: absolute; right: var(--space-6); bottom: var(--space-6);
    font: 400 12px/16px var(--f-sans); letter-spacing: .16em;
    white-space: nowrap;
    opacity: 0;
    transition: opacity .5s var(--ease);
  }
  .spectrum li:hover, .spectrum li:focus-within,
  .spectrum:not(:hover):not(:focus-within) li.is-default { flex-grow: 6; }
  .spectrum li:hover .spectrum__print, .spectrum li:focus-within .spectrum__print,
  .spectrum:not(:hover):not(:focus-within) li.is-default .spectrum__print { opacity: 1; scale: 1; transition-delay: .15s; }
  .spectrum li:hover .spectrum__meta, .spectrum li:focus-within .spectrum__meta,
  .spectrum:not(:hover):not(:focus-within) li.is-default .spectrum__meta { opacity: 1; transition-delay: .3s; }
}

/* ---------- IV. The mark ---------- */

.mark-grid { display: grid; gap: var(--space-10); align-items: center; }
@media (min-width: 900px) {
  .mark-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .mark-grid > :first-child { grid-column: 1 / span 6; }
  .mark-grid > :last-child { grid-column: 8 / span 5; }
}

.specimen { display: grid; gap: var(--space-4); width: min(100%, 72vh); }
.specimen__fabric {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid var(--brand-cream);
  background: var(--garment);
  transition: background-color 1s var(--ease);
  display: grid;
  place-items: center;
  overflow: clip;
}
.specimen__corner { position: absolute; width: 16px; height: 16px; border: 0 solid var(--on, var(--brand-cream)); transition: border-color 1s var(--ease); }
.specimen__corner:nth-child(1) { left: var(--space-4); top: var(--space-4); border-left-width: 1px; border-top-width: 1px; }
.specimen__corner:nth-child(2) { right: var(--space-4); top: var(--space-4); border-right-width: 1px; border-top-width: 1px; }
.specimen__corner:nth-child(3) { left: var(--space-4); bottom: var(--space-4); border-left-width: 1px; border-bottom-width: 1px; }
.specimen__corner:nth-child(4) { right: var(--space-4); bottom: var(--space-4); border-right-width: 1px; border-bottom-width: 1px; }
.specimen__cap { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }

.chest { grid-area: 1 / 1; transition: opacity .7s var(--ease), transform 1s var(--ease); }
.chest[hidden] { display: block; opacity: 0; transform: scale(.9); pointer-events: none; }

.pb {
  width: clamp(120px, 18vw, 200px);
  aspect-ratio: 1;
  border: 4px solid var(--ink);
  border-color: var(--ink);
  color: var(--ink);
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 8% 10%;
  font-family: var(--f-sans);
  transition: color 1s var(--ease), border-color 1s var(--ease);
}
.specimen .pb { color: var(--print, var(--ink)); border-color: var(--print, var(--ink)); }
.pb__n { font-weight: 700; font-size: clamp(12px, 1.4vw, 16px); line-height: 1; }
.pb__sym { font-weight: 700; font-size: clamp(56px, 8.4vw, 96px); line-height: 1; align-self: center; letter-spacing: -.02em; }
.pb__name { font-weight: 500; font-size: clamp(10px, 1.1vw, 13px); letter-spacing: .04em; line-height: 1; }

.iii {
  width: clamp(88px, 12vw, 140px);
  aspect-ratio: 1388 / 1456;
  background: var(--print, var(--ink));
  -webkit-mask: url("../img/mark-cream-trim.svg") center / contain no-repeat;
  mask: url("../img/mark-cream-trim.svg") center / contain no-repeat;
  transition: background-color 1s var(--ease);
}

.mark-copy { display: grid; gap: var(--space-6); }
.mark-copy__lead { font: 500 clamp(32px, 3.8vw, 56px)/1.08 var(--f-display); letter-spacing: .06em; text-transform: uppercase; }
.mark-copy > p { max-width: 44ch; }
.chips__label { margin-bottom: var(--space-2); }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  min-width: 48px;
  padding: var(--space-2) var(--space-1);
  border-bottom: 2px solid transparent;
  color: var(--ink-muted);
  transition: color .4s var(--ease), border-color .4s var(--ease);
}
.chip__sw { width: 32px; height: 32px; border: 1px solid var(--brand-cream); background: var(--c); transition: transform .5s var(--ease); }
.chip__n { font: 400 12px/16px var(--f-sans); letter-spacing: .16em; }
.chip:hover { color: var(--ink); }
.chip:hover .chip__sw { transform: translateY(-3px); }
.chip[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--brand-cream); }

.element {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
}
.element > div { padding: var(--space-4) var(--space-2) 0 0; display: grid; gap: var(--space-1); align-content: start; }
.element dd { font: 600 clamp(22px, 2.2vw, 28px)/1.3 var(--f-display); }
@media (max-width: 479px) {
  .element { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: var(--space-4); }
}

/* ---------- V. Impact ---------- */

.impact-figure { display: grid; gap: var(--space-4); margin-bottom: calc(var(--space-10) * 2); }
.impact-num {
  font-size: clamp(64px, 17.5vw, 320px);
  color: var(--brand-cream);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.impact-figure .t-label { color: var(--ink); max-width: 38ch; }

.formula {
  display: grid;
  gap: var(--space-6);
  border-top: 1px solid var(--rule);
  padding-top: var(--space-10);
}
.formula__term { display: grid; gap: var(--space-4); align-content: start; }
.formula__term h3 { font: 600 clamp(32px, 3.6vw, 56px)/1 var(--f-display); letter-spacing: .06em; text-transform: uppercase; }
.formula__term p { max-width: 30ch; }
.formula__op { font: 400 clamp(32px, 3.6vw, 56px)/1 var(--f-display); color: var(--rule); }
@media (min-width: 900px) {
  .formula { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr); column-gap: var(--space-10); }
}

.turn {
  margin-top: var(--section);
  font: 500 clamp(32px, 6vw, 104px)/1.06 var(--f-display);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.turn .mask:last-child > span { color: var(--ink-muted); }

/* ---------- VI. Letter ---------- */

.letter-grid { display: grid; gap: calc(var(--space-10) * 2); }
@media (min-width: 900px) {
  .letter-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .letter-grid > :first-child { grid-column: 1 / span 5; }
  .letter-grid > :last-child { grid-column: 7 / span 6; }
}
.letter { display: grid; gap: var(--space-6); max-width: 46ch; align-content: start; }
.letter p:first-child { font: 500 clamp(24px, 2.4vw, 32px)/1.25 var(--f-display); letter-spacing: .04em; text-transform: uppercase; }
.sign { padding-top: var(--space-4); border-top: 1px solid var(--rule); }
.sign span { display: block; color: var(--ink-muted); }

.founders { border-top: 1px solid var(--rule); }
.founder {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: var(--space-4);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.founder .t-index { color: var(--ink-muted); }
.founder__name {
  font: 600 clamp(30px, 4.2vw, 64px)/1 var(--f-display);
  letter-spacing: .04em;
  transition: transform .8s var(--ease);
}
.founder:hover .founder__name { transform: translateX(var(--space-4)); }
.founder .t-label { grid-column: 2; margin-top: var(--space-2); }

/* ---------- VII. Order ---------- */

.steps { display: grid; gap: var(--space-10); }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-6); } }
.step { display: grid; gap: var(--space-4); align-content: start; border-top: 1px solid var(--rule); padding-top: var(--space-4); }
.step__n { font-size: clamp(72px, 8vw, 128px); }
.step h3 { font: 700 15px/20px var(--f-sans); letter-spacing: .12em; text-transform: uppercase; }
.step p { max-width: 34ch; color: var(--ink-muted); }

.mega {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: var(--space-4);
  margin-top: calc(var(--space-10) * 2);
  padding: var(--space-10) var(--g);
  border-block: 1px solid var(--rule);
  overflow: clip;
  transition: color .5s var(--ease);
}
.mega::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: 50% 100%;
  transition: transform .8s var(--ease);
}
.mega:hover, .mega:focus-visible { color: var(--on-accent); }
.mega:hover::before, .mega:focus-visible::before { transform: scaleY(1); }
.mega:hover .t-label, .mega:focus-visible .t-label { color: var(--on-accent); }
.mega__text { font-size: clamp(52px, 12.5vw, 220px); white-space: nowrap; transition: transform 1s var(--ease); }
.mega:hover .mega__text { transform: translateX(var(--space-6)); }
.mega__row { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }

/* ---------- Footer ---------- */

.site-foot { position: relative; overflow: clip; padding-bottom: var(--space-6); }
.foot-wordmark {
  display: flex; justify-content: center; gap: .16em;
  font-size: 27.5vw;
  color: var(--forest-deep);
  white-space: nowrap;
  user-select: none;
  margin-top: var(--space-10);
}
.foot-grid { display: grid; gap: var(--space-10); padding: var(--space-10) var(--g) 0; }
.foot-grid h2 { margin-bottom: var(--space-4); }
.foot-grid li + li { margin-top: var(--space-1); }
.foot-grid a { display: inline-flex; min-height: 32px; align-items: center; }
.foot-brand { display: grid; gap: var(--space-4); align-content: start; }
.foot-brand img { width: 64px; }
.foot-brand p { font: 500 24px/1.2 var(--f-display); letter-spacing: .08em; text-transform: uppercase; }
@media (min-width: 900px) {
  .foot-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .foot-brand { grid-column: 1 / span 3; }
  .foot-col:nth-of-type(1) { grid-column: 5 / span 3; }
  .foot-col:nth-of-type(2) { grid-column: 8 / span 2; }
  .foot-grid .board-foot { grid-column: 10 / span 3; align-self: end; }
}

/* ==========================================================================
   STUDY PAGE
   ========================================================================== */

.study-top { position: relative; padding-top: calc(var(--head-h) + var(--space-6)); }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-bottom: var(--space-6); }
.crumbs a { display: inline-flex; align-items: center; min-height: 32px; transition: color .3s var(--ease); }
.crumbs a:hover { color: var(--ink); }
.crumbs [aria-current] { color: var(--ink); }
.crumbs__pager { margin-left: auto; display: flex; gap: var(--space-6); }

.study-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-4);
  align-items: start;
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--rule);
}
.study-head .t-index { font-size: clamp(28px, 3.4vw, 48px); line-height: 1; padding-top: .1em; }
.study-head h1 {
  font: 600 clamp(40px, 7vw, 112px)/.95 var(--f-display);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.study-head .t-label { margin-top: var(--space-2); }
.study-head__aside { display: none; }
@media (min-width: 768px) {
  .study-head { grid-template-columns: auto minmax(0, 1fr) auto; }
  .study-head__aside { display: block; }
}

.study-body { display: grid; gap: var(--space-10); padding-block: var(--space-10) calc(var(--space-10) * 2); }
.study-notes { padding-top: var(--space-10); }
@media (min-width: 1024px) {
  .study-body { grid-template-columns: minmax(0, 1fr) clamp(320px, 28vw, 400px); column-gap: calc(var(--space-10) * 1.5); align-items: start; }
  .buy { position: sticky; top: calc(var(--head-h) + var(--space-6)); }
}

.study-stage { position: relative; display: grid; gap: var(--space-4); }
.study-stage__pair {
  position: relative; z-index: 1;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: var(--space-4);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  margin-inline: calc(var(--g) * -1);
  padding-inline: var(--g);
}
.study-stage__pair::-webkit-scrollbar { display: none; }
.garment { display: grid; gap: var(--space-4); justify-items: center; scroll-snap-align: center; }
.garment__img { width: 100%; }
.garment__img img { width: 100%; height: auto; }
@media (min-width: 768px) {
  .study-stage__pair { grid-auto-flow: row; grid-template-columns: 1fr 1fr; overflow: visible; margin-inline: 0; padding-inline: 0; }
}
@media (pointer: fine) { .garment__img { cursor: crosshair; } }
.loupe-hint { position: relative; z-index: 1; text-align: center; }
@media (pointer: coarse) { .loupe-hint { display: none; } }

.loupe {
  position: fixed;
  left: 0; top: 0;
  z-index: 60;
  width: 220px; height: 220px;
  border: 1px solid var(--brand-cream);
  background-color: var(--board);
  background-repeat: no-repeat;
  pointer-events: none;
  opacity: 0;
  scale: .9;
  transition: opacity .3s var(--ease), scale .4s var(--ease);
}
.loupe.is-on { opacity: 1; scale: 1; }
.loupe::before, .loupe::after { content: ""; position: absolute; background: var(--brand-cream); }
.loupe::before { left: 50%; top: 50%; width: 16px; height: 1px; margin-left: -8px; }
.loupe::after { left: 50%; top: 50%; width: 1px; height: 16px; margin-top: -8px; }
.loupe__tag {
  position: absolute; left: -1px; top: 100%;
  margin-top: var(--space-2);
  padding: 2px 6px;
  background: var(--brand-cream);
  color: var(--board);
  font: 400 12px/16px var(--f-sans);
  letter-spacing: .16em;
  white-space: nowrap;
}

.buy { display: grid; gap: var(--space-6); }
.buy__lede { font-size: 18px; line-height: 28px; }
.sizes { border: 0; padding: 0; min-width: 0; }
.sizes legend { padding: 0; margin-bottom: var(--space-2); }
.sizes__row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-2); }
.sizes input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.sizes label {
  display: grid; place-items: center;
  min-height: 48px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  font: 700 15px/20px var(--f-sans);
  letter-spacing: .12em;
  cursor: pointer;
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.sizes label:hover { border-color: var(--brand-cream); }
.sizes input:checked + label { background: var(--brand-cream); color: var(--board); border-color: var(--brand-cream); }
.sizes input:focus-visible + label { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

.note { display: grid; gap: var(--space-2); padding: var(--space-4); background: var(--surface-raised); }
.note__row { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
.note__copy { min-height: 32px; font: 700 12px/16px var(--f-sans); letter-spacing: .16em; color: var(--accent); }
.note__copy:hover { color: var(--ink); }
.note__text { font-size: 15px; line-height: 22px; }
.buy__help { color: var(--ink-muted); font-size: 14px; line-height: 20px; }

.spec-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--rule);
  align-items: end;
}
.print { display: grid; gap: var(--space-2); }
.print__frame { border: 1px solid var(--brand-cream); aspect-ratio: 1; overflow: clip; background: var(--garment); }
.print__frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.6s var(--ease); }
.print:hover .print__frame img { transform: scale(1.08); }

.toast {
  position: fixed;
  left: 50%; bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
  z-index: 80;
  display: grid; gap: 2px;
  padding: var(--space-4) var(--space-6);
  background: var(--brand-cream);
  color: var(--board);
  font: 700 12px/16px var(--f-sans);
  letter-spacing: .16em;
  text-transform: uppercase;
  translate: -50% 200%;
  transition: translate .7s var(--ease);
  width: max-content;
  max-width: calc(100vw - 2 * var(--g));
}
.toast.is-on { translate: -50% 0; }
.toast span { font-weight: 400; color: #3f4538; }
.has-orderbar .toast { bottom: calc(96px + env(safe-area-inset-bottom)); }

.orderbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 55;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-4) var(--g) calc(var(--space-4) + env(safe-area-inset-bottom));
  background: var(--surface);
  border-top: 1px solid var(--rule);
  transform: translateY(101%);
  transition: transform .6s var(--ease);
}
.orderbar.is-on { transform: none; }
.orderbar .t-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (min-width: 1024px) { .orderbar { display: none; } }

/* Field notes */
.notes-grid { display: grid; gap: var(--space-10); }
@media (min-width: 900px) {
  .notes-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .notes-grid > :first-child { grid-column: 1 / span 4; align-self: start; }
  .notes-grid > :last-child { grid-column: 6 / span 7; }
}
.specimen-label { border: 1px solid var(--brand-cream); padding: var(--space-6); display: grid; gap: var(--space-4); align-content: start; }
.specimen-label__head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-4); padding-bottom: var(--space-4); border-bottom: 2px solid var(--forest); }
.specimen-label dl > div { display: grid; grid-template-columns: 11ch minmax(0, 1fr); gap: var(--space-4); padding: var(--space-2) 0; border-bottom: 1px solid var(--surface-raised); }
.specimen-label dd { font: 700 13px/16px var(--f-sans); letter-spacing: .12em; text-transform: uppercase; }
.notes { display: grid; gap: var(--space-10); }
.notes article { display: grid; gap: var(--space-2); padding-top: var(--space-4); border-top: 1px solid var(--rule); }
.notes h3 { font: 500 clamp(24px, 2.6vw, 36px)/1.15 var(--f-display); letter-spacing: .06em; text-transform: uppercase; margin-bottom: var(--space-2); }
.notes p:not(.t-label) { max-width: 56ch; }

/* All studies strip */
.all-studies { padding-bottom: var(--space-10); display: grid; gap: var(--space-4); }
.all-studies ol { display: grid; grid-template-columns: repeat(7, minmax(120px, 1fr)); gap: var(--space-2); overflow-x: auto; scrollbar-width: none; }
.all-studies ol::-webkit-scrollbar { display: none; }
.all-studies a {
  display: grid; gap: var(--space-2);
  padding: var(--space-2) 0 var(--space-4);
  border-bottom: 2px solid transparent;
  transition: border-color .4s var(--ease);
}
.all-studies a:hover { border-bottom-color: var(--rule); }
.all-studies a[aria-current="page"] { border-bottom-color: var(--brand-cream); }
.all-studies__sw { display: block; height: 40px; border: 1px solid var(--brand-cream); background: var(--c); }
.all-studies__name { font: 700 13px/16px var(--f-sans); letter-spacing: .1em; text-transform: uppercase; }

/* Next study */
.next {
  position: relative;
  display: grid;
  gap: var(--space-4);
  padding: calc(var(--space-10) * 2) var(--g);
  border-top: 1px solid var(--rule);
  overflow: clip;
  isolation: isolate;
}
.next__name { display: flex; align-items: baseline; flex-wrap: wrap; column-gap: .3em; font-size: clamp(48px, 10vw, 180px); transition: transform 1s var(--ease); }
.next__name .t-index { font-size: .28em; line-height: 1; color: var(--ink-muted); }
.next__img {
  position: absolute;
  right: var(--g); top: 50%;
  width: clamp(180px, 24vw, 360px);
  translate: 20% -50%;
  opacity: 0;
  transition: translate 1.2s var(--ease), opacity .8s var(--ease);
  z-index: -1;
}
.next:hover .next__img, .next:focus-visible .next__img { translate: 0 -50%; opacity: 1; }
.next:hover .next__name { transform: translateX(var(--space-6)); }
@media (max-width: 767px) { .next__img { display: none; } }

/* 404 */
.lost { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: var(--head-h) var(--g) var(--space-10); overflow: clip; position: relative; }
.lost__word { position: absolute; left: 50%; top: 50%; translate: -50% -50%; font-size: 44vw; color: var(--forest-deep); white-space: nowrap; pointer-events: none; }
.lost__body { position: relative; display: grid; gap: var(--space-6); justify-items: center; }
.lost__body .muted { max-width: 36ch; }

/* ---------- View transitions ---------- */

::view-transition-old(root),
::view-transition-new(root) { animation-duration: .45s; }
::view-transition-group(*) { animation-duration: .8s; animation-timing-function: cubic-bezier(.16, 1, .3, 1); }

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .band__track { animation: none; }
  html.js [data-reveal], html.js [data-reveal] > *, html.js [data-reveal="mask"] .mask > span { opacity: 1 !important; transform: none !important; }
  html.js .sec-head[data-reveal]::after { transform: none !important; }
  html.js body:not(.is-ready) .hero__mark,
  html.js body:not(.is-ready) .hero__wordmark > span,
  html.js .hero__line .ch,
  html.js body:not(.is-ready) .hero__foot { opacity: 1; transform: none; translate: none; clip-path: none; }
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; }
}