/* ============================================================
   OTTOM4T3 — calques : sections superposees, plans camera,
   arrets (blueprint / application / livre), vue eclatee.
   Regle : tout ce qui bouge par frame = transform + opacity.
   ============================================================ */

.layer{
  position:absolute; inset:0; overflow:hidden;
  transform:translate3d(0,0,0);
  will-change:transform,opacity;
  backface-visibility:hidden;
}
.layer--01{z-index:11}
.layer--02{z-index:12; opacity:0; visibility:hidden}
.layer--03{z-index:13; opacity:0; visibility:hidden}
.layer.is-live{visibility:visible}

.layer__content{
  position:absolute; inset:0; z-index:5;
  display:flex; flex-direction:column; justify-content:center;
  padding:0 var(--gut);
}

/* item revele : --rv pilote par JS (0 -> 1), --d = rang */
[data-anim]{
  --o:clamp(0, calc((var(--rv,0) - var(--d,0) * .07) * 3.6), 1);
  opacity:var(--o);
  transform:translate3d(0, calc((1 - var(--o)) * 26px), 0);
  filter:blur(calc((1 - var(--o)) * 7px));
  will-change:opacity,transform,filter;
}

/* ============================================================
   01 — ALUMINIUM
   ============================================================ */
.alu__canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.alu__fallback{
  position:absolute;inset:0;display:none;
  background:
    linear-gradient(110deg,#0b0c0e 0%,#1b1f23 22%,#4a5056 44%,#9aa2a9 50%,#4a5056 56%,#1b1f23 78%,#0b0c0e 100%);
  background-size:280% 100%;
  background-position:calc(var(--sheen,0) * 100%) 0;
}
.alu__fallback::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay;
}
body.no-webgl .alu__canvas{display:none}
body.no-webgl .alu__fallback{display:block}

/* voile : rend le texte lisible sur le metal et recree le cadrage
   des rendus de reference (gauche sombre, lumiere a droite) */
.layer--01::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    linear-gradient(96deg, rgba(4,5,6,.92) 0%, rgba(4,5,6,.74) 26%, rgba(4,5,6,.30) 52%, transparent 76%),
    linear-gradient(to top, rgba(4,5,6,.72) 0%, transparent 34%);
}
.layer--01 .layer__content{z-index:5}

.hero{max-width:min(100%,1320px);width:100%;align-items:flex-start}
.hero__title{
  font-weight:800; font-size:clamp(46px,7.4vw,118px); line-height:.92;
  letter-spacing:-.005em; margin:.18em 0 .34em;
  color:#f6f8fa; text-shadow:0 2px 40px rgba(0,0,0,.55);
}
.hero__lede{
  max-width:38ch; font-size:clamp(14px,1.3vw,19px); color:var(--fg-2); line-height:1.6;
}
.hero__tags{display:flex;gap:26px;margin-top:30px;flex-wrap:wrap}
.hero__tags li{
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--fg-3);
  position:relative;padding-left:14px;
}
.hero__tags li::before{content:"";position:absolute;left:0;top:.52em;width:5px;height:1px;background:var(--alu-400)}
.hero__scroll{
  position:absolute; left:var(--gut); bottom:clamp(76px,11vh,120px);
  display:flex;align-items:center;gap:12px;
  font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:var(--fg-3);
}
.hero__dot{
  width:22px;height:22px;border:1px solid var(--line-strong);border-radius:50%;
  display:grid;place-items:center;position:relative;
}
.hero__dot::after{content:"";width:1px;height:7px;background:var(--alu-200);animation:dot 2.2s var(--ease) infinite}
@keyframes dot{0%,100%{transform:translateY(-3px);opacity:.3}50%{transform:translateY(3px);opacity:1}}

/* ============================================================
   02 — PISTE CAMERA
   ============================================================ */
.track{position:absolute;inset:0;z-index:1;background:#050607}
.film, .film__poster{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(.94) contrast(1.04);
}
.film{opacity:0;transition:opacity .45s var(--ease)}
.layer--02.film-ready .film{opacity:1}
.layer--02.film-ready .film__poster{opacity:0;transition:opacity .45s var(--ease)}
.shot{
  position:absolute;inset:0;opacity:0;
  will-change:opacity,transform;
  transform:translate3d(0,0,0) scale(1.08);
}
.shot img{
  width:100%;height:100%;object-fit:cover;
  /* les plaques sources sont petites : on assume le grain cinema */
  filter:saturate(.86) contrast(1.06) brightness(.92);
}
.track::after{ /* profondeur : assombrit les bords, cache l'upscale */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 45%,transparent 30%,rgba(3,4,6,.55) 82%,rgba(3,4,6,.85) 100%);
}

/* ---- respiration ---- */
.breath{
  position:absolute; inset:0; z-index:3; opacity:0; pointer-events:none;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:26px;
  background:radial-gradient(38% 46% at 50% 48%, rgba(4,5,7,.88) 0%, rgba(4,5,7,.55) 55%, transparent 100%);
}
.breath__line{
  width:1px; height:clamp(80px,14vh,150px); transform-origin:50% 100%;
  background:linear-gradient(to top,transparent,var(--alu-100));
  transform:scaleY(var(--g,0));
  box-shadow:0 0 22px rgba(205,210,214,.45);
}
.breath__word{
  font-size:10px; letter-spacing:.44em; text-transform:uppercase; color:var(--fg-2);
  text-shadow:0 1px 18px rgba(0,0,0,.9);
}

/* ============================================================
   02 — ARRETS
   ============================================================ */
.stop{
  position:absolute; inset:0; z-index:4;
  display:grid; align-content:center; gap:clamp(20px,3vw,46px);
  padding:96px var(--gut) 92px;
  opacity:0; visibility:hidden; pointer-events:none;
}
.stop.is-live{visibility:visible}
/* voile propre a chaque arret : la lisibilite passe avant l'image */
.stop::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none}
.stop--blueprint::before{
  background:linear-gradient(270deg, rgba(4,6,9,.90) 0%, rgba(4,6,9,.72) 26%, rgba(4,6,9,.34) 52%, rgba(4,6,9,.22) 100%);
}
.stop--app::before{
  background:linear-gradient(90deg, rgba(4,6,9,.92) 0%, rgba(4,6,9,.70) 28%, rgba(4,6,9,.30) 54%, rgba(4,6,9,.18) 100%);
}
.stop--book::before{
  background:radial-gradient(110% 90% at 50% 50%, rgba(4,6,9,.42) 0%, rgba(4,6,9,.78) 70%, rgba(4,6,9,.90) 100%);
}
.stop__title{
  font-weight:700; font-size:clamp(23px,2.9vw,44px); line-height:1.12; letter-spacing:-.01em;
  max-width:19ch; margin-top:14px;
}
.stop__text .eyebrow{color:var(--tech)}

/* --- ARRET 1 : blueprint --- */
.stop--blueprint{grid-template-columns:minmax(0,1.38fr) minmax(0,.62fr);align-items:center}
.stop__doc{position:relative;min-width:0}
.doc-plan{
  position:relative; aspect-ratio:3/2; width:100%;
  background:linear-gradient(160deg,#0a1220 0%,#0c1728 48%,#080e18 100%);
  border:1px solid rgba(143,180,242,.22);
  box-shadow:0 50px 110px rgba(0,0,0,.72), inset 0 1px 0 rgba(170,205,255,.1);
  transform:perspective(1600px) rotateX(9deg) rotateZ(-.7deg);
  transform-origin:50% 80%;
}
.doc-plan::after{ /* reflet de studio sur le papier */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(118deg,transparent 30%,rgba(190,215,255,.1) 48%,transparent 62%);
}
.doc__svg{position:absolute;inset:0;width:100%;height:100%}
.doc-plan .ln{stroke:rgba(168,200,248,.66);stroke-width:1.1;fill:none}
.doc-plan .ln--thin{stroke:rgba(168,200,248,.32);stroke-width:1}
.doc-plan .ln--dash{stroke-dasharray:4 4;stroke:rgba(168,200,248,.45)}
.doc-plan .ln--fill{fill:rgba(143,180,242,.2);stroke:rgba(168,200,248,.4)}
.doc-plan .tx{fill:rgba(214,230,255,.86);font-family:ui-monospace,Menlo,Consolas,monospace;font-size:10px;letter-spacing:.14em}
.doc-plan .tx--ttl{font-size:21px;letter-spacing:.2em;fill:#eaf2ff}
.doc-plan .tx--sub{font-size:9px;letter-spacing:.24em;fill:rgba(180,205,240,.7)}
.doc-plan .tx--cap{font-size:9px;letter-spacing:.2em;fill:rgba(190,215,250,.8)}
.doc-plan .tx--sm{font-size:8.5px;letter-spacing:.14em;fill:rgba(178,202,238,.72)}

/* trace progressive du plan */
.doc__block{
  --o:clamp(0, calc((var(--rv,0) * 1.5 - .12) * 4), 1);
  opacity:var(--o);
}
.doc__block:nth-of-type(2){--o:clamp(0, calc((var(--rv,0) * 1.5 - .2) * 4), 1)}
.doc__block:nth-of-type(3){--o:clamp(0, calc((var(--rv,0) * 1.5 - .26) * 4), 1)}
.doc__block:nth-of-type(4){--o:clamp(0, calc((var(--rv,0) * 1.5 - .32) * 4), 1)}
.doc__block:nth-of-type(5){--o:clamp(0, calc((var(--rv,0) * 1.5 - .38) * 4), 1)}

.pin{
  position:absolute; left:var(--x); top:var(--y);
  font-size:9.5px; letter-spacing:.2em; text-transform:uppercase; white-space:nowrap;
  color:#dbe8ff; padding:6px 11px;
  /* pas de backdrop-filter : 10 epingles x un flou de fond coutent
     ~25 ms par image sur une machine moyenne. Fond opaque a la place. */
  border:1px solid rgba(143,180,242,.32); background:rgba(7,12,21,.86);
  --o:clamp(0, calc((var(--rv,0) - .18 - var(--i) * .045) * 6), 1);
  opacity:var(--o);
  transform:translate3d(calc((var(--o) - 1) * 18px),0,0);
}
.pin--r{left:auto;right:var(--x);transform:translate3d(calc((1 - var(--o)) * 18px),0,0)}
.pin::before{
  content:"";position:absolute;top:50%;width:26px;height:1px;background:rgba(143,180,242,.4);
  right:-27px;
}
.pin--r::before{right:auto;left:-27px}

.steps{margin-top:26px;border-top:1px solid var(--line)}
.steps li{
  display:flex;gap:16px;align-items:baseline;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-size:clamp(12px,1.05vw,15px);color:var(--fg-2);
  --o:clamp(0, calc((var(--rv,0) - .22 - var(--n,0) * .05) * 7), 1);
  opacity:var(--o); transform:translate3d(0,calc((1 - var(--o)) * 12px),0);
}
.steps li b{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:10px;color:var(--tech);letter-spacing:.1em}
.steps li:nth-child(1){--n:0}.steps li:nth-child(2){--n:1}.steps li:nth-child(3){--n:2}
.steps li:nth-child(4){--n:3}.steps li:nth-child(5){--n:4}.steps li:nth-child(6){--n:5}
.steps li:nth-child(7){--n:6}

/* --- ARRET 2 : application --- */
.stop--app{grid-template-columns:minmax(0,.62fr) minmax(0,1.38fr);align-items:center}
.stop__text--left{order:1}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tags li{
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-2);
  border:1px solid var(--line);padding:7px 12px;border-radius:999px;
  --o:clamp(0, calc((var(--rv,0) - .2 - var(--n,0) * .04) * 7), 1);
  opacity:var(--o);transform:translate3d(0,calc((1 - var(--o)) * 10px),0);
}
.tags li:nth-child(1){--n:0}.tags li:nth-child(2){--n:1}.tags li:nth-child(3){--n:2}
.tags li:nth-child(4){--n:3}.tags li:nth-child(5){--n:4}.tags li:nth-child(6){--n:5}

.poster{order:2;min-width:0;display:grid;place-items:center}
.poster__frame{
  width:100%; max-width:760px; padding:clamp(16px,1.7vw,28px);
  background:linear-gradient(165deg,#0a0d12 0%,#0e141c 55%,#070a0e 100%);
  border:1px solid rgba(160,190,230,.16);
  box-shadow:0 60px 130px rgba(0,0,0,.75), inset 0 1px 0 rgba(180,210,255,.09);
  transform:perspective(1900px) rotateY(-7deg) rotateX(2.5deg);
}
.poster__head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:14px;border-bottom:1px solid var(--line)}
.poster__logo{font-weight:800;font-size:17px;letter-spacing:.06em;color:#dce9ff}
.poster__meta{font-size:9px;letter-spacing:.24em;color:var(--fg-3)}
.poster__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(8px,1vw,16px);padding:18px 0}
.poster__screen{
  --o:clamp(0, calc((var(--rv,0) - .1 - var(--i) * .05) * 6), 1);
  opacity:var(--o); transform:translate3d(0,calc((1 - var(--o)) * 22px),0);
}
.poster__screen img{
  width:100%;border-radius:6px;border:1px solid rgba(150,185,235,.16);
  box-shadow:0 18px 40px rgba(0,0,0,.6);
}
.poster__screen figcaption{
  margin-top:8px;font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-3);
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.poster__specs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 26px;padding-top:16px;border-top:1px solid var(--line)}
.poster__specs > div{
  display:flex;gap:10px;align-items:baseline;
  --o:clamp(0, calc((var(--rv,0) - .1 - var(--i) * .05) * 6), 1);
  opacity:var(--o);
}
.poster__specs dt{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--tech);min-width:78px}
.poster__specs dd{font-size:11.5px;color:var(--fg-2)}

/* --- ARRET 3 : livre --- */
.stop--book{place-content:center}
.book{
  display:grid;grid-template-columns:1fr 14px 1fr;
  width:min(1080px,92vw);margin:0 auto;
  background:linear-gradient(180deg,#e9e5dc 0%,#ded9ce 100%);
  color:#1b1d20;
  box-shadow:0 70px 150px rgba(0,0,0,.8), 0 2px 0 rgba(255,255,255,.2) inset;
  transform:perspective(2200px) rotateX(11deg);
  transform-origin:50% 92%;
  border-radius:2px;
}
.book__page{padding:clamp(20px,2.4vw,40px)}
.book__page--l{background:linear-gradient(100deg,#efece4,#e2ded4)}
.book__page--r{background:linear-gradient(260deg,#efece4,#e2ded4)}
.book__spine{background:linear-gradient(90deg,rgba(0,0,0,.26),rgba(0,0,0,.05) 45%,rgba(0,0,0,.26))}
.book__kicker{font-size:9px;letter-spacing:.26em;text-transform:uppercase;color:#6d7278}
.book__title{font-size:clamp(20px,2.3vw,34px);font-weight:700;letter-spacing:.01em;margin:6px 0 4px;color:#14161a}
.book__sub{font-size:12.5px;color:#585d64;max-width:34ch}
.result{margin-top:26px;padding-top:16px;border-top:1px solid rgba(28,32,38,.2);
  --o:clamp(0, calc((var(--rv,0) - .62) * 5), 1); opacity:var(--o);
}
.result figcaption{font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:#6d7278;
  font-family:ui-monospace,Menlo,Consolas,monospace}
.result svg{width:100%;height:auto;margin-top:8px;display:block}
.result__grid{stroke:rgba(28,32,38,.14);stroke-width:1}
.result__line{fill:none;stroke:#1b1e22;stroke-width:1.6;stroke-linejoin:round}
.result__fill{fill:rgba(27,30,34,.08);stroke:none}
.result__dot{fill:#1b1e22}
.result__legend{margin-top:8px;font-size:11px;color:#585d64}
.result__legend b{color:#14161a}
.book__foot{margin-top:14px;font-size:10.5px;color:#6d7278;letter-spacing:.04em}

.flow{width:100%;max-width:340px;margin-top:20px;display:block}
.flow__node rect{fill:rgba(20,24,30,.045);stroke:rgba(28,32,38,.42);stroke-width:1}
.flow__node text{fill:#1b1e22;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;letter-spacing:.16em}
.flow__node text.tx--sm{font-size:8px;letter-spacing:.08em;fill:#6a7076}
.flow__link{stroke:rgba(28,32,38,.5);stroke-width:1;marker-end:none}
.flow__node,.flow__link{
  --o:clamp(0, calc((var(--rv,0) - .08 - var(--i) * .085) * 7), 1);
  opacity:var(--o);
}

.outs{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.outs li{
  font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:#3a3f45;
  border:1px solid rgba(28,32,38,.3);padding:6px 10px;
  --o:clamp(0, calc((var(--rv,0) - .3 - var(--i) * .03) * 8), 1);
  opacity:var(--o);
}
.beats{margin-top:26px;border-top:1px solid rgba(28,32,38,.2)}
.beats li{
  padding:9px 0;border-bottom:1px solid rgba(28,32,38,.14);
  font-size:clamp(12px,1.15vw,16px);font-weight:700;color:#14161a;letter-spacing:.01em;
  --o:clamp(0, calc((var(--rv,0) - .38 - var(--i) * .08) * 9), 1);
  opacity:var(--o); transform:translate3d(calc((1 - var(--o)) * -14px),0,0);
}
.beats li:last-child{color:#0f1114}

/* ============================================================
   03 — VUE ECLATEE + CONTACT
   ============================================================ */
.layer--03{background:radial-gradient(120% 90% at 50% 50%,#0d1014 0%,#050607 70%)}
.explode{position:absolute;inset:0;z-index:1}
.explode__plate{position:absolute;inset:0;opacity:0;will-change:opacity,transform}
.explode__plate img{
  width:100%;height:100%;object-fit:cover;
  filter:contrast(1.08) brightness(.96);
  /* le fondu des bords est cuit dans l'alpha du webp : zero cout a l'execution */
}
.explode__plate[data-ex="0"] img,
.explode__plate[data-ex="1"] img,
.explode__plate[data-ex="2"] img,
.explode__plate[data-ex="3"] img{
  object-fit:contain;
  /* les sources sont en 4:5 : sans agrandissement l'objet flotte trop petit */
  transform:scale(1.26) translateY(-2.5%);
}

.orbit{position:absolute;right:var(--gut);top:50%;transform:translateY(-50%);z-index:4;text-align:right}
.orbit li{
  font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--fg);
  padding:8px 0 8px 22px;position:relative;
  text-shadow:0 1px 14px rgba(0,0,0,.95), 0 0 3px rgba(0,0,0,.8);
  --o:clamp(0, calc((var(--rv,0) - .35 - var(--i) * .05) * 7), 1);
  opacity:var(--o);transform:translate3d(calc((1 - var(--o)) * 16px),0,0);
}
.orbit li::before{content:"";position:absolute;left:0;top:50%;width:12px;height:1px;background:var(--alu-400)}

/* voile du contact : la composition reste visible, le texte gagne */
.layer--03::before{
  content:"";position:absolute;inset:0;z-index:3;pointer-events:none;
  background:linear-gradient(96deg, rgba(4,6,9,.95) 0%, rgba(4,6,9,.82) 30%, rgba(4,6,9,.30) 58%, transparent 82%);
}
.contact{z-index:6;justify-content:center;align-items:flex-start;text-align:left}
.contact__title{
  font-weight:800;font-size:clamp(46px,9.4vw,152px);line-height:.92;letter-spacing:-.005em;
  margin:.16em 0 .2em;text-shadow:0 4px 60px rgba(0,0,0,.7);
}
.contact__lede{font-size:clamp(15px,1.7vw,26px);color:var(--fg-2);max-width:26ch}
.contact__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:15px 28px;border-radius:999px;border:1px solid var(--fg);
  background:var(--fg);color:var(--ink-900);
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;font-weight:700;
  transition:transform var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn span{transition:transform var(--t-fast) var(--ease)}
.btn:hover span{transform:translateX(5px)}
.btn--ghost{background:transparent;color:var(--fg);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--fg-2)}
.contact__meta{display:flex;gap:24px;margin-top:38px;flex-wrap:wrap}
.contact__meta li{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-3)}

/* ============================================================
   RESPONSIVE — le mobile n'est pas une reduction du desktop
   ============================================================ */
@media (max-width:1080px){
  .stop--blueprint,.stop--app{grid-template-columns:1fr;align-content:center;gap:24px}
  .stop__text--left{order:0}
  .poster{order:1}
  .doc-plan{transform:none;aspect-ratio:16/10}
  .pin{display:none}
  .poster__frame{transform:none}
  .book{grid-template-columns:1fr;transform:none}
  .book__spine{display:none}
  .book__page--r{border-top:1px solid rgba(28,32,38,.2)}
  .orbit{right:auto;left:var(--gut);bottom:104px;top:auto;transform:none;text-align:left;
         display:flex;gap:16px;flex-wrap:wrap}
  .orbit li{padding:0 0 0 18px}
}
/* ---- tablette / petit portable ---- */
@media (max-width:860px){
  .book{max-height:calc(100dvh - 168px)}
  .flow{max-height:236px;width:auto;margin-inline:auto}
  .result{display:none}
}

@media (max-width:640px){
  .chrome--top{height:62px}
  .hero__lede{font-size:14px}
  .hero__tags{gap:16px}
  .stop{padding:80px var(--gut) 86px}
  /* le poster garde 2 ecrans : lisibles, pas 4 miniatures illisibles */
  .poster__grid{grid-template-columns:repeat(2,1fr);padding:14px 0}
  .poster__screen:nth-child(n+3){display:none}
  .poster__specs{grid-template-columns:1fr;gap:6px}
  .poster__specs > div:nth-child(n+3){display:none}
  .poster__frame{padding:14px}
  .stop--app{gap:16px;align-content:center}
  .stop--app .stop__title{font-size:22px;max-width:none}
  .stop--app .tags{margin-top:14px;gap:6px}
  .stop--app .tags li{font-size:9px;padding:5px 9px}

  /* la fiche technique reste entiere et lisible */
  .book{max-height:calc(100dvh - 150px)}
  .book__page{padding:16px 18px}
  .book__title{font-size:22px}
  .book__sub{font-size:11.5px}
  .flow{max-width:none;max-height:206px}
  .outs li{font-size:8.5px;padding:5px 8px}
  .beats{margin-top:14px}
  .beats li{font-size:13px;padding:7px 0}
  .book__foot{font-size:9.5px;margin-top:10px}

  .doc-plan{aspect-ratio:4/3}
  .stop--blueprint .steps li{padding:9px 0;font-size:13px}
  .progress{max-width:34vw}
  .contact__meta{gap:14px}
  /* le livre devient une fiche plein ecran, lisible */
  .book{width:100%;max-height:none}
  .book__page{padding:20px}
}

/* ============================================================
   MOUVEMENT REDUIT — le contenu reste entier
   ============================================================ */
body.reduced .shot{transition:opacity .3s linear}
body.reduced .grain{display:none}
body.reduced [data-anim],body.reduced .pin,body.reduced .steps li,
body.reduced .tags li,body.reduced .poster__screen,body.reduced .poster__specs > div,
body.reduced .flow__node,body.reduced .flow__link,body.reduced .outs li,
body.reduced .beats li,body.reduced .orbit li,body.reduced .doc__block{
  opacity:1 !important;transform:none !important;filter:none !important;
}
body.reduced .doc-plan,body.reduced .poster__frame,body.reduced .book{transform:none}

/* ============================================================
   ANNOTATIONS DU FILM
   Le film montre l'objet. Le DOM ne le redessine pas : il annote.
   Un panneau de verre, cale du cote oppose a l'objet dans le plan.
   ============================================================ */
.stop{display:block}
.note{
  position:absolute; top:50%; transform:translateY(-50%);
  width:min(42ch, 38vw); padding:clamp(22px,2.2vw,34px);
  background:linear-gradient(165deg, rgba(8,11,15,.86), rgba(8,11,15,.66));
  border:1px solid var(--line);
  box-shadow:0 40px 110px rgba(0,0,0,.6);
}
.note--right{right:var(--gut)}
.note--left{left:var(--gut)}
.note--wide{width:min(48ch, 42vw)}
.note__text{margin-top:14px; color:var(--fg-2); font-size:14px; line-height:1.62}
.note .eyebrow{color:var(--tech)}
.note .stop__title{max-width:none}

/* reperes techniques qui montent le long du cadre */
.marks{
  position:absolute; top:50%; transform:translateY(-50%);
  display:flex; flex-direction:column; gap:14px;
}
.marks--left{left:var(--gut)}
.marks li{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:9.5px; letter-spacing:.22em; text-transform:uppercase; color:var(--fg);
  padding-left:22px; position:relative;
  text-shadow:0 1px 14px rgba(0,0,0,.95);
  --o:clamp(0, calc((var(--rv,0) - .10 - var(--i) * .07) * 7), 1);
  opacity:var(--o); transform:translate3d(calc((var(--o) - 1) * 16px),0,0);
}
.marks li::before{
  content:""; position:absolute; left:0; top:50%;
  width:13px; height:1px; background:var(--tech);
}

.tags--tight{gap:6px; margin-top:20px}

@media (max-width:1080px){
  .note{
    position:static; transform:none; width:auto; max-width:none;
    margin:auto var(--gut);
  }
  .stop{display:grid; align-content:center}
  .marks{display:none}
}
@media (max-width:640px){
  .note{padding:20px}
  .note .stop__title{font-size:21px}
}

/* la barre haute se materialise quand le contenu prend la main */
body.stage-off .chrome--top{
  background:rgba(8,9,10,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}

/* les temps forts passent du papier creme au panneau de verre :
   la couleur d'origine etait calee sur la page du livre */
.note .beats{margin-top:22px; border-top:1px solid var(--line)}
.note .beats li{
  border-bottom:1px solid var(--line);
  color:var(--fg); font-size:clamp(13px,1.15vw,16px);
  padding:10px 0;
}
.note .beats li:last-child{color:#fff}