/* Layout concept: the studio sweep. One white backdrop, one felt object on stage,
   words set like the film's title cards and grey subtitles. Ends on the black end card. */
:root {
  --paper: #ffffff;
  --ink: #141414;
  --ash: #8b8b8b;        /* the film's subtitle grey */
  --hair: #e4e4e4;
  --felt-red: #df4a2f;
  --night: #0b0b0b;
  --night-ink: #f4f4f2;

  --f-display: "Sofia Sans Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;
  --f-body: "Sofia Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --t-hero: clamp(58px, 12.5vw, 196px);
  --t-h2: clamp(40px, 6.2vw, 100px);
  --t-h3: clamp(26px, 2.8vw, 42px);
  --t-body: clamp(17px, 1.25vw, 19px);
  --t-small: 13px;

  --gutter: clamp(16px, 4vw, 64px);
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 350 var(--t-body)/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
main { overflow-x: clip; }
img, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--felt-red); outline-offset: 4px; border-radius: 2px; }
[hidden] { display: none !important; }

/* ---------- type ---------- */
.kicker {
  display: flex; align-items: baseline; gap: 14px;
  margin: 0 0 22px;
  font: 400 12px/1 var(--f-mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ash);
}
.kicker .tc { color: var(--ink); letter-spacing: .06em; }
.kicker .tc::after { content: ""; display: inline-block; width: 28px; height: 1px; margin-left: 14px; vertical-align: middle; background: currentColor; opacity: .5; }
.h2 {
  margin: 0;
  font: 300 var(--t-h2)/.96 var(--f-display);
  letter-spacing: -.012em;
  text-wrap: balance;
}
.h2-xl { font-size: clamp(56px, 9vw, 150px); }
.h3 {
  margin: 0;
  font: 350 var(--t-h3)/1.05 var(--f-display);
  letter-spacing: -.005em;
  text-wrap: balance;
}
h4 { margin: 0; font: 500 19px/1.2 var(--f-display); letter-spacing: .01em; }
.body { margin: 0; max-width: 34em; color: #4a4a4a; }
.mono { font: 400 12px/1.4 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ash); }
.fig-cap { margin-top: 14px; text-align: center; }

/* ---------- lockup (the film's title card) ---------- */
.lockup { display: inline-flex; flex-direction: column; align-items: center; text-align: center; }
.lk-eyebrow {
  font: 300 clamp(12px, 1.35vw, 21px)/1 var(--f-display);
  letter-spacing: .34em; text-transform: uppercase;
  margin-right: -.34em; /* optical centering for trailing tracking */
}
.lk-title {
  margin: .08em 0 0;
  font: 350 var(--t-hero)/.9 var(--f-display);
  letter-spacing: .015em; text-transform: uppercase;
}
.lk-rules { display: flex; flex-direction: column; align-items: center; gap: .5em; width: 100%; margin-top: .55em; font-size: clamp(10px, 1.1vw, 16px); }
.lk-rules i { display: block; height: 1.5px; background: currentColor; transform-origin: 50% 50%; }
.lk-rules i:nth-child(1) { width: 100%; }
.lk-rules i:nth-child(2) { width: 78%; margin-top: .3em; }
.lk-rules i:nth-child(3) { width: 46%; }
.lk-letters .ch { display: inline-block; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) var(--gutter) 14px;
  color: #fff; mix-blend-mode: difference;
  pointer-events: none;
}
.nav a, .nav .nav-time { pointer-events: auto; }
.nav-mark { font: 400 14px/1 var(--f-display); letter-spacing: .3em; text-transform: uppercase; text-decoration: none; }
.nav-time { display: flex; gap: 8px; align-items: baseline; font: 400 12px/1 var(--f-mono); letter-spacing: .06em; font-variant-numeric: tabular-nums; }
.nav-dur { opacity: .55; }
.nav-label { margin-left: 10px; text-transform: uppercase; letter-spacing: .14em; opacity: .75; min-width: 9em; }
.nav-film { justify-self: end; font: 400 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; text-decoration: none; padding: 8px 0; border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav-film:hover { border-bottom-color: currentColor; }
.scrub { position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; height: 1px; background: rgba(255,255,255,.22); }
.scrub i { position: absolute; inset: 0 auto 0 0; width: 100%; background: #fff; transform-origin: 0 50%; transform: scaleX(0); }
.scrub i::after { content: ""; position: absolute; right: -3px; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: #fff; }

/* ---------- story ---------- */
.story { position: relative; }
.stage { position: sticky; top: 0; height: 100vh; height: 100svh; margin-bottom: -100vh; margin-bottom: -100svh; pointer-events: none; z-index: 0; }
.stage canvas { width: 100%; height: 100%; }
.stage-sub {
  position: absolute; left: 0; top: 0; margin: 0;
  width: min(90vw, 440px); transform: translate(-50%, 0);
  text-align: center; font: 400 15px/1.45 var(--f-body); color: var(--ash);
  transition: opacity .35s;
}
.chapter { position: relative; z-index: 1; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: 0 var(--gutter); }
.chapter .ch-inner { width: min(46%, 640px); padding-block: 12vh; }
.chapter .body { margin-top: 28px; }
.tail { min-height: 70vh; }

.hero { flex-direction: column; justify-content: flex-start; align-items: center; padding-top: max(15vh, 96px); }
.hero-meta { position: absolute; left: var(--gutter); bottom: 32px; margin: 0; font: 400 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ash); }
.cue { position: absolute; right: var(--gutter); bottom: 28px; display: flex; align-items: center; gap: 12px; font: 400 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ash); }
.cue i { position: relative; width: 1px; height: 44px; background: var(--hair); overflow: hidden; }
.cue i::after { content: ""; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: var(--ink); animation: cue 1.8s var(--ease) infinite; }
@keyframes cue { to { top: 100%; } }

/* hero intro choreography */
.js .lockup-hero .lk-eyebrow { animation: track-in 1.4s var(--ease) both .15s; }
.js .lockup-hero .lk-letters .ch { animation: rise 1s var(--ease) both; animation-delay: calc(.25s + var(--i) * 45ms); }
.js .lockup-hero .lk-rules i { animation: rule 1.1s var(--ease) both; }
.js .lockup-hero .lk-rules i:nth-child(1) { animation-delay: .75s; }
.js .lockup-hero .lk-rules i:nth-child(2) { animation-delay: .9s; }
.js .lockup-hero .lk-rules i:nth-child(3) { animation-delay: 1.05s; }
@keyframes track-in { from { letter-spacing: .9em; opacity: 0; } }
@keyframes rise { from { transform: translateY(.45em); opacity: 0; filter: blur(6px); } }
@keyframes rule { from { transform: scaleX(0); } }

/* ---------- reveal system (only below-the-fold elements get .pending) ---------- */
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .06em; margin-bottom: -.06em; }
.split .w > span { display: inline-block; transition: transform 1.05s var(--ease), opacity 1.05s var(--ease); transition-delay: calc(var(--i, 0) * 55ms); }
.split.pending .w > span { transform: translateY(108%); opacity: 0; }
[data-reveal] { transition: opacity 1s var(--ease), transform 1s var(--ease); transition-delay: var(--d, 0s); }
[data-reveal].pending { opacity: 0; transform: translateY(28px); }
[data-reveal] svg path { stroke-dasharray: 1; stroke-dashoffset: 0; transition: stroke-dashoffset 1.6s var(--ease) .2s; }
[data-reveal].pending svg path { stroke-dashoffset: 1; }

/* ---------- pinned sections ---------- */
.pin { position: relative; }
.pin-inner { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }

/* numbers */
.numbers { height: 320vh; }
.numbers .pin-inner { background: var(--paper); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: center; gap: 4vw; padding: 0 var(--gutter); }
.num-copy .h2 { font-size: clamp(38px, 4.6vw, 76px); }
.num-next { margin-top: 26px; transition: opacity .6s, transform .6s var(--ease); }
.num-next.off { opacity: 0; transform: translateY(14px); }
.num-figs { display: grid; gap: 4vh; }
.fig-num { margin: 0; }
.fig-num .felt-wrap { position: relative; }
.fig-num canvas { width: 100%; height: auto; }
.fig-num figcaption { margin-top: 6px; padding-left: 2%; font: 400 12px/1.3 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ash); transition: opacity .5s; }
#n75 { width: 86%; justify-self: end; }

/* sections with flow */
.section { padding-block: clamp(96px, 16vh, 200px); }
.wrap { width: 100%; max-width: 1360px; margin: 0 auto; padding-inline: var(--gutter); }

/* land */
.eq-lead { max-width: 13em; font-size: clamp(38px, 5vw, 84px); }
.eq-row { display: grid; grid-template-columns: minmax(120px, 3fr) minmax(0, 9fr); gap: 4vw; align-items: center; margin-top: 8vh; }
.eq-fig canvas { width: 100%; height: auto; }
.eq-body { min-width: 0; }
.eq-body .h3 { margin-bottom: 26px; }
.pitches { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1.4vw; }
.pitches canvas { width: 100%; aspect-ratio: 1; height: auto; }
.eq-or { margin: 7vh 0 0; font: 300 clamp(28px, 3vw, 44px)/1 var(--f-display); font-style: italic; color: var(--ash); }
.apt-grid { width: 100%; height: auto; }
.apt-count { margin-top: 14px; font-variant-numeric: tabular-nums; }
.apt-count span { color: var(--ink); }
.materials { margin-top: 14vh; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 4vw; align-items: end; border-top: 1px solid var(--hair); padding-top: 48px; }
.mat-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.mat-list li { display: flex; flex-direction: column; gap: 16px; }
.mat-list li:nth-child(2) { --d: .12s; }
.mat-list li:nth-child(3) { --d: .24s; }
.mat-list svg { width: 64px; height: 64px; fill: none; stroke: var(--ink); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }
.mat-list span { font: 350 clamp(24px, 2.4vw, 34px)/1 var(--f-display); }

/* research: horizontal */
.hscroll { position: relative; height: 500vh; }
.hs-inner { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.hs-track { display: flex; gap: clamp(28px, 5vw, 96px); padding: 0 var(--gutter); width: max-content; will-change: transform; align-items: flex-start; }
.era { width: clamp(260px, 30vw, 440px); flex: none; }
.era-head { width: clamp(300px, 44vw, 700px); align-self: center; }
.era-head .h2 { font-size: clamp(40px, 5.4vw, 88px); }
.hs-hint { margin-top: 28px; }
.era-obj { width: 100%; aspect-ratio: 1; height: auto; margin-bottom: 18px; }
.era-when { margin: 0 0 10px; }
.era .body { margin-top: 12px; font-size: 16px; }
.era-verdict { align-self: center; margin-top: 4vh; padding: 34px; border: 1px solid var(--ink); }
.verdict-h { font-size: clamp(30px, 3.2vw, 50px); }
.hs-rail { position: absolute; left: var(--gutter); right: var(--gutter); bottom: 5vh; }
.rail-line { position: relative; height: 1px; background: var(--hair); }
.rail-line i { position: absolute; inset: 0 auto 0 0; width: 100%; background: var(--ink); transform-origin: 0 50%; transform: scaleX(0); }
.rail-labels { display: flex; justify-content: space-between; margin-top: 12px; }

/* idea */
.idea { height: 460vh; }
.idea canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.idea-copy { position: absolute; left: var(--gutter); bottom: 12vh; width: min(44vw, 620px); }
.idea-steps { list-style: none; margin: 0; padding: 0; font: 300 clamp(34px, 4.4vw, 72px)/1.02 var(--f-display); letter-spacing: -.01em; }
.idea-steps li { transition: opacity .5s var(--ease), transform .7s var(--ease), color .5s; }
.idea-steps li.future { opacity: 0; transform: translateY(24px); }
.idea-steps li.past { color: #c4c4c4; }
.idea-copy.off { opacity: 0; transition: opacity .6s; }
.lockup-idea { position: absolute; left: var(--gutter); top: 50%; transform: translateY(-50%); font-size: .62em; }
.lockup-idea .lk-title { font-size: clamp(52px, 8vw, 130px); }
.lockup-idea { opacity: 0; transition: opacity .8s var(--ease); }
.lockup-idea.on { opacity: 1; }
.lockup-idea .lk-rules i { transform: scaleX(0); transition: transform 1s var(--ease); }
.lockup-idea.on .lk-rules i { transform: none; }
.lockup-idea.on .lk-rules i:nth-child(2) { transition-delay: .12s; }
.lockup-idea.on .lk-rules i:nth-child(3) { transition-delay: .24s; }

/* site */
.site-head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 4vw; align-items: end; }
.site-head .kicker, .site-head .h2 { grid-column: 1; }
.site-head .site-lead { grid-column: 2; grid-row: 2; }
.rotor { display: inline-block; height: 1.6em; overflow: hidden; vertical-align: bottom; color: var(--ink); font-weight: 500; }
.rotor-track { display: flex; flex-direction: column; animation: rotor 9s var(--ease) infinite; }
.rotor-track span { display: block; height: 1.6em; }
@keyframes rotor {
  0%, 20% { transform: translateY(0); }
  25%, 45% { transform: translateY(-1.6em); }
  50%, 70% { transform: translateY(-3.2em); }
  75%, 95% { transform: translateY(-4.8em); }
  100% { transform: translateY(-6.4em); }
}
.section-fig { margin: 10vh 0 0; }
.svg-box { overflow-x: auto; }
#sectionSvg { width: 100%; min-width: 560px; height: auto; color: var(--ink); overflow: visible; }
#secDraw path { stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }
#secDraw .thin { stroke-width: .8; opacity: .55; }
#secDraw .dot { stroke-dasharray: 1 5; }
.mark { cursor: pointer; outline: none; }
.mark .c { fill: var(--paper); stroke: var(--ink); stroke-width: 1.3; transition: fill .3s; }
.mark .hit { fill: transparent; stroke: none; }
.mark text { font: 500 13px var(--f-mono); fill: var(--ink); text-anchor: middle; dominant-baseline: central; pointer-events: none; transition: fill .3s; }
.mark .pulse { fill: none; stroke: var(--felt-red); stroke-width: 1; animation: pulse 2.4s var(--ease) infinite; transform-box: fill-box; transform-origin: center; pointer-events: none; }
.mark.hot .c { fill: var(--ink); }
.mark.hot text { fill: var(--paper); }
.mark:focus-visible .c { stroke: var(--felt-red); stroke-width: 2.4; }
.section-fig { position: relative; }
.sec-tip {
  position: absolute; left: 0; top: 0; z-index: 3;
  width: min(320px, calc(100% - 8px)); padding: 20px 22px 22px;
  background: rgba(255,255,255,.9);
  -webkit-backdrop-filter: blur(14px) saturate(1.3); backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid rgba(20,20,20,.08); border-radius: 18px;
  box-shadow: 0 1px 2px rgba(20,20,20,.05), 0 22px 50px -18px rgba(20,20,20,.28);
  pointer-events: none; opacity: 0; filter: blur(4px);
  transform: translateY(10px) scale(.97); transform-origin: var(--ax, 50%) 100%;
  transition: opacity .3s var(--ease), transform .5s var(--ease), filter .4s var(--ease);
}
.sec-tip[data-side="below"] { transform: translateY(-10px) scale(.97); transform-origin: var(--ax, 50%) 0; }
.sec-tip.on { opacity: 1; filter: none; transform: none; }
.sec-tip::after { content: ""; position: absolute; left: var(--ax, 50%); bottom: -15px; width: 1px; height: 14px; background: var(--ink); opacity: .35; }
.sec-tip[data-side="below"]::after { bottom: auto; top: -15px; }
.tip-felt { position: absolute; right: -18px; top: -30px; width: 78px; height: 78px; pointer-events: none; }
.tip-head { display: flex; align-items: center; gap: 12px; padding-right: 44px; }
.tip-head b { width: 22px; height: 22px; flex: none; border-radius: 50%; border: 1px solid var(--felt-red); color: var(--felt-red); display: grid; place-items: center; font: 500 10px/1 var(--f-mono); }
.tip-head h4 { font: 350 24px/1.05 var(--f-display); letter-spacing: -.005em; }
.sec-tip p { margin: 12px 0 0; font-size: 15px; line-height: 1.55; color: #5b5b5b; }
.hint-touch { display: none; }
@media (hover: none) { .hint-hover { display: none; } .hint-touch { display: inline; } }
@keyframes pulse { from { transform: scale(1); opacity: .9; } to { transform: scale(2.6); opacity: 0; } }
.legend { list-style: none; margin: 6vh 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 28px; border-top: 1px solid var(--hair); padding-top: 28px; }
.legend li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px; cursor: default; transition: opacity .3s; }
.legend b { width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--ink); display: grid; place-items: center; font: 500 12px/1 var(--f-mono); transition: background .3s, color .3s; }
.legend li.hot b { background: var(--ink); color: var(--paper); }
.legend p { margin: 6px 0 0; font-size: 15px; line-height: 1.5; color: #555; }
.legend:hover li:not(.hot) { opacity: .45; }
.zones { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: 6vw; align-items: center; margin-top: 16vh; }
.rings-fig { margin: 0; }
#ringsCanvas { width: 100%; aspect-ratio: 1; height: auto; }
.zones-copy .body { margin-top: 20px; }
.zone-list { margin: 36px 0 0; display: grid; gap: 0; }
.zone-list div { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: 16px; padding: 16px 0; border-top: 1px solid var(--hair); }
.zone-list div:nth-child(2) { --d: .1s; }
.zone-list div:nth-child(3) { --d: .2s; }
.zone-list dt { font: 400 12px/1.8 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; }
.zone-list dd { margin: 0; color: #555; }

/* works */
.works { height: 520vh; }
.works .pin-inner { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 4vw; align-items: center; padding: 0 var(--gutter); }
.works-h { font-size: clamp(34px, 3.8vw, 62px); max-width: 11em; }
.steps { list-style: none; margin: 34px 0 0; padding: 0; display: grid; gap: 4px; }
.steps li { display: grid; grid-template-columns: 9.5em minmax(0, 1fr); column-gap: 16px; padding: 10px 0; border-top: 1px solid var(--hair); opacity: .32; transition: opacity .5s; }
.steps li > span { grid-row: span 2; padding-top: 3px; }
.steps li p { margin: 4px 0 0; font-size: 15px; line-height: 1.5; color: #555; max-height: 0; overflow: hidden; transition: max-height .6s var(--ease); }
.steps li.on { opacity: 1; }
.steps li.on p { max-height: 6em; }
.steps li.done { opacity: .6; }
.works-vis { position: relative; height: min(78vh, 720px); min-width: 0; }
#worksCanvas { width: 100%; height: 100%; }
.works-clock { position: absolute; right: 0; top: 0; margin: 0; color: var(--ink); font-size: 13px; font-variant-numeric: tabular-nums; }

/* everywhere */
.ev-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 5vw; align-items: center; }
.ev-copy .body { margin-top: 26px; }
.ev-stat { margin-top: 44px; display: flex; flex-direction: column; gap: 8px; }
.ev-num { font: 250 clamp(64px, 8vw, 128px)/.9 var(--f-display); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.ev-num small { font-size: .32em; margin-left: .12em; letter-spacing: 0; vertical-align: top; }
.ev-map { margin: 0; }
#mapCanvas { width: 100%; aspect-ratio: 4 / 3; height: auto; }
.principles { list-style: none; margin: 16vh 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4vw; }
.principles li { border-top: 1px solid var(--ink); padding-top: 22px; }
.principles li:nth-child(2) { --d: .12s; }
.principles li:nth-child(3) { --d: .24s; }
.principles svg { width: 44px; height: 44px; fill: none; stroke: var(--ink); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 18px; }
.principles p { margin: 8px 0 0; color: #555; font-size: 16px; }
.marquee { margin-top: 14vh; overflow: hidden; border-block: 1px solid var(--hair); padding-block: 18px; }
.marquee-track { display: flex; width: max-content; animation: marquee 36s linear infinite; }
.marquee-track span { font: 200 clamp(44px, 7vw, 110px)/1 var(--f-display); text-transform: uppercase; letter-spacing: .06em; padding-right: .9em; white-space: nowrap; }
.marquee-track span::after { content: ""; display: inline-block; width: .16em; height: .16em; margin-left: .9em; border-radius: 50%; background: var(--felt-red); vertical-align: middle; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* end card */
.endcard { background: var(--night); color: var(--night-ink); padding-block: clamp(120px, 22vh, 240px) 48px; }
.endcard .body, .endcard .mono { color: #8f8f8f; }
.end-line { display: grid; grid-template-columns: minmax(90px, 2fr) minmax(0, 10fr); gap: 3vw; align-items: center; }
.end-heart { width: 100%; aspect-ratio: 1; height: auto; }
.lockup-end { display: flex; margin: 22vh auto 0; }
.lockup-end .lk-title { font-size: clamp(48px, 8vw, 128px); }
.lk-by { margin: 34px 0 0; font: 300 clamp(18px, 1.6vw, 24px)/1 var(--f-display); letter-spacing: .12em; }
.film { margin: 14vh 0 0; }
.film-k { color: #8f8f8f; }
.endcard .kicker .tc { color: var(--night-ink); }
.film-poster, .film-frame { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: #161616; color: #fff; text-decoration: none; }
.film-poster { clip-path: inset(var(--inset, 0%)); }
.film-poster img { width: 100%; height: 100%; object-fit: cover; transform: scale(var(--zoom, 1)); transition: filter .6s var(--ease); }
.film-poster::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.45), rgba(0,0,0,0) 38%); pointer-events: none; }
.film-play {
  position: absolute; left: 50%; top: 50%; z-index: 1;
  width: clamp(72px, 8vw, 128px); aspect-ratio: 1; border-radius: 50%;
  transform: translate(-50%, -50%);
  display: grid; place-items: center;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.75);
  -webkit-backdrop-filter: blur(10px) saturate(1.2); backdrop-filter: blur(10px) saturate(1.2);
  transition: transform .6s var(--ease), background .4s;
}
.film-play::before { content: ""; position: absolute; inset: -34%; border-radius: 50%; border: 1px solid rgba(255,255,255,.35); animation: ring 3s var(--ease) infinite; }
.film-play svg { width: 42%; height: 42%; margin-left: 6%; fill: none; stroke: #fff; stroke-width: 1.4; stroke-linejoin: round; }
@keyframes ring { from { transform: scale(.7); opacity: 1; } to { transform: scale(1.15); opacity: 0; } }
.film-label { position: absolute; left: clamp(18px, 3vw, 44px); bottom: clamp(16px, 3vw, 40px); z-index: 1; display: flex; flex-direction: column; gap: 8px; }
.film-label b { font: 500 clamp(13px, 1.1vw, 16px)/1 var(--f-body); letter-spacing: .16em; text-transform: uppercase; }
.film-label small { font: 400 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: rgba(255,255,255,.72); }
.film-poster:hover .film-play { transform: translate(-50%, -50%) scale(1.08); background: rgba(255,255,255,.26); }
.film-poster:hover img { filter: brightness(1.05); }
.film-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.credits { margin: 16vh 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; border-top: 1px solid rgba(255,255,255,.16); padding-top: 26px; }
.credits dt { font: 400 11px/1.4 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: #8f8f8f; }
.credits dd { margin: 8px 0 0; font: 350 22px/1.2 var(--f-display); }
.foot { margin: 10vh 0 0; text-align: center; }

/* ---------- responsive ---------- */
.nf-short { display: none; }
.felt-obj, .felt-text { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.felt-obj { cursor: pointer; }

/* ---------- phones and small tablets ---------- */
@media (max-width: 860px) {
  /* nav: mark, live timecode, short film link */
  .nav { grid-template-columns: 1fr auto 1fr; padding-top: calc(env(safe-area-inset-top, 0px) + 14px); }
  .nav-mark { font-size: 12px; letter-spacing: .22em; }
  .nav-time { display: flex; }
  .nav-dur, .nav-label { display: none; }
  .nf-full { display: none; }
  .nf-short { display: inline; }

  /* opening story: frosted glass so the felt object shows through */
  .chapter { align-items: flex-end; min-height: 84svh; }
  .chapter .ch-inner {
    width: 100%; margin-bottom: max(7vh, 40px); padding: 20px 20px 22px;
    background: rgba(255,255,255,.55);
    -webkit-backdrop-filter: blur(14px) saturate(1.5); backdrop-filter: blur(14px) saturate(1.5);
    border: 1px solid rgba(255,255,255,.8); border-radius: 22px;
    box-shadow: 0 1px 0 rgba(255,255,255,.9) inset, 0 16px 40px -20px rgba(20,20,20,.25);
  }
  .chapter .kicker { margin-bottom: 14px; }
  .chapter .body { margin-top: 14px; font-size: 16px; color: #3d3d3d; }
  .h2 { font-size: clamp(36px, 10vw, 52px); }
  .h2-xl { font-size: clamp(48px, 14vw, 72px); }
  .hero { min-height: 100svh; padding-top: max(13vh, 88px); align-items: center; }
  .hero-meta { bottom: 22px; }
  .cue { bottom: 18px; }
  .tail { min-height: 34vh; }

  /* tighter rhythm between sections */
  .section { padding-block: 64px; }
  .numbers { height: 250vh; }
  .numbers .pin-inner { grid-template-columns: 1fr; align-content: center; gap: 28px; }
  .num-copy .h2 { font-size: clamp(30px, 8.4vw, 44px); }
  .num-next { margin-top: 14px; font-size: 16px; }

  .eq-lead { font-size: clamp(32px, 9vw, 46px); }
  .eq-row { grid-template-columns: 1fr; gap: 14px; margin-top: 36px; }
  .eq-fig { width: 42%; }
  .eq-body .h3 { margin-bottom: 16px; }
  .pitches { gap: 6px; }
  .eq-or { margin-top: 28px; }
  .materials { grid-template-columns: 1fr; margin-top: 56px; padding-top: 28px; gap: 24px; }
  .mat-list { gap: 12px; }
  .mat-list svg { width: 44px; height: 44px; }
  .mat-list span { font-size: 22px; }

  /* research: vertical scroll drives the timeline sideways, like on desktop */
  .hs-track { gap: 22px; }
  .era { width: 78vw; }
  .era-head { width: 84vw; }
  .era-head .h2 { font-size: clamp(34px, 10vw, 48px); }
  .era-obj { width: 72%; margin-bottom: 12px; }
  .era .body { font-size: 15px; }
  .era-verdict { padding: 24px; margin-top: 0; }
  .hs-rail { bottom: max(3vh, 18px); }
  .rail-labels { font-size: 10px; letter-spacing: .08em; }

  /* the idea: steps crossfade in place like subtitles */
  .idea { height: 380vh; }
  .idea-copy { width: auto; right: var(--gutter); bottom: 9vh; }
  .idea-steps { display: grid; font-size: clamp(30px, 8.6vw, 42px); }
  .idea-steps li { grid-area: 1 / 1; align-self: end; }
  .idea-steps li.past { opacity: 0; transform: translateY(-18px); }
  .lockup-idea { left: 50%; top: auto; bottom: 9vh; transform: translateX(-50%); }

  /* the site: the drawing fits the screen, no sideways scroll */
  .site-head { grid-template-columns: 1fr; gap: 20px; }
  .site-head .site-lead { grid-column: 1; grid-row: auto; }
  .section-fig { margin-top: 36px; }
  .svg-box { overflow: visible; }
  #sectionSvg { min-width: 0; }
  #secDraw path { stroke-width: 2.4; }
  #secDraw .thin { stroke-width: 1.6; }
  .legend { grid-template-columns: 1fr; gap: 16px; margin-top: 28px; padding-top: 20px; }
  .zones { grid-template-columns: 1fr; margin-top: 64px; gap: 28px; }
  .zone-list { margin-top: 24px; }

  .works { height: 420vh; }
  .works .pin-inner { grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); align-content: start; gap: 8px; padding-top: 68px; padding-bottom: 12px; }
  .works-h { font-size: clamp(28px, 7.6vw, 38px); }
  .steps { margin-top: 10px; }
  .steps li { display: none; grid-template-columns: 1fr; border: 0; padding: 4px 0; }
  .steps li.on { display: grid; }
  .steps li > span { grid-row: auto; }
  .works-vis { height: auto; min-height: 0; }

  .ev-grid { grid-template-columns: 1fr; gap: 32px; }
  .ev-stat { margin-top: 28px; }
  .principles { grid-template-columns: 1fr; gap: 28px; margin-top: 56px; }
  .marquee { margin-top: 56px; padding-block: 12px; }

  .endcard { padding-block: 72px 32px; }
  .end-line { grid-template-columns: 1fr; gap: 20px; }
  .end-heart { width: 30%; }
  .lockup-end { margin-top: 72px; }
  .film { margin-top: 56px; }
  .credits { grid-template-columns: 1fr 1fr; margin-top: 56px; }
  .foot { margin-top: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .marquee-track { animation: none; }
}