/* ============================================================
   Space Sparks · maquette de site vitrine
   Registre marque. Style typographique suisse sur ciel profond.
   ============================================================ */

:root{
  /* Ciel */
  --ink:        oklch(0.135 0.022 268);
  --ink-2:      oklch(0.185 0.026 268);
  --ink-3:      oklch(0.245 0.028 268);
  /* Lumiere */
  --ivory:      oklch(0.965 0.010 85);
  --ivory-2:    oklch(0.915 0.014 85);
  --muted:      oklch(0.735 0.018 268);
  --faint:      oklch(0.545 0.022 268);
  /* Etincelle */
  --spark:      oklch(0.835 0.155 78);
  --spark-hot:  oklch(0.905 0.115 92);
  --spark-deep: oklch(0.585 0.135 62);
  --spark-solid: var(--spark);
  --on-spark:   oklch(0.19 0.03 70);
  /* Le canevas ne lit pas les couleurs CSS : on lui passe les composantes. */
  --canvas-spark: 255, 214, 140;
  --canvas-glow:  255, 226, 175;
  --canvas-trail: 255, 205, 130;
  --canvas-head:  255, 236, 200;

  --error:      oklch(0.685 0.180 25);
  --valid:      oklch(0.760 0.140 158);

  --line:       color-mix(in oklch, var(--ivory) 13%, transparent);
  --line-soft:  color-mix(in oklch, var(--ivory) 7%, transparent);

  /* Deux familles, deux rôles. Familjen Grotesk porte tout ce qui est
     titre : ses lettres ont un dessin nordique reconnaissable, là où
     Archivo reste neutre. Archivo conserve le texte courant, les libellés
     et les grands chiffres, où son axe de largeur est irremplaçable. */
  --font: 'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-titre: 'Familjen Grotesk', 'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);

  --gut: clamp(20px, 5vw, 72px);
  --max: 1320px;

  color-scheme: dark;
}

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

/* Plusieurs blocs du formulaire declarent display, qui l emporterait sur
   l attribut hidden : on retablit la priorite attendue. */
[hidden]{ display: none !important; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Fond etoile ---------- */
#sky{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.aura{
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
}
.aura--a{
  top: -18vh; right: -12vw;
  width: 62vw; height: 62vw;
  background: radial-gradient(circle, color-mix(in oklch, var(--spark) 16%, transparent), transparent 66%);
  opacity: .55;
}
.aura--b{
  top: 118vh; left: -22vw;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle, oklch(0.5 0.13 268 / .3), transparent 68%);
  opacity: .7;
}

/* ---------- Trames et rythme ---------- */
.shell{
  position: relative;
  z-index: 1;
}
.wrap{
  width: min(100% - var(--gut) * 2, var(--max));
  margin-inline: auto;
}
.rule{
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---------- Typographie ---------- */
.display{
  font-family: var(--font-titre);
  font-weight: 700;
  letter-spacing: -0.036em;
  line-height: 0.92;
  margin: 0;
  text-wrap: balance;
}
.h-chapter{
  font-family: var(--font-titre);
  font-size: clamp(2.4rem, 6.8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.032em;
  line-height: 0.98;
  margin: 0;
  text-wrap: balance;
}
.h-sub{
  font-family: var(--font-titre);
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.12;
  margin: 0;
}
.lead{
  font-size: clamp(1.12rem, 1.65vw, 1.5rem);
  line-height: 1.52;
  color: var(--ivory);
  max-width: 30ch;
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.012em;
}
.body{
  max-width: 62ch;
  color: var(--muted);
  margin: 0;
}
.label{
  font-size: 0.7rem;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0;
}
.label--spark{ color: var(--spark); }

.numeral{
  font-size: clamp(3.4rem, 9vw, 7.2rem);
  font-weight: 800;
  font-stretch: 74%;
  line-height: 0.8;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in oklch, var(--ivory) 26%, transparent);
  display: block;
}

/* ---------- Barre de navigation ---------- */
.nav{
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  transition: transform .55s var(--ease), background-color .4s linear, border-color .4s linear;
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(0px);
}
.nav.is-stuck{
  background: color-mix(in oklch, var(--ink) 82%, transparent);
  border-bottom-color: var(--line-soft);
  backdrop-filter: blur(14px);
}
.nav.is-hidden{ transform: translateY(-102%); }
.nav__in{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}
.mark{
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ivory);
}
.mark__glyph{
  width: 15px; height: 15px;
  flex: none;
  color: var(--spark);
}
.mark__text{
  font-family: var(--font-titre);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}
.nav__links{
  display: flex;
  gap: clamp(14px, 2vw, 30px);
  align-items: center;
}
.nav__link{
  font-size: 0.78rem;
  font-weight: 500;
  font-stretch: 92%;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 0;
  position: relative;
  transition: color .28s var(--ease);
}
.nav__link::after{
  content:'';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--spark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.nav__link:hover{ color: var(--ivory); }
.nav__link:hover::after,
.nav__link.is-active::after{ transform: scaleX(1); }
.nav__link.is-active{ color: var(--ivory); }

.progress{
  position: absolute;
  left: 0; bottom: -1px;
  height: 1px;
  width: 100%;
  transform: scaleX(var(--sp, 0));
  transform-origin: left;
  background: linear-gradient(90deg, var(--spark-deep), var(--spark));
}

/* ---------- Boutons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 20px;
  font-size: 0.82rem;
  font-weight: 600;
  font-stretch: 96%;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ivory);
  background: transparent;
  position: relative;
  overflow: hidden;
  transition: color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.btn::before{
  content:'';
  position: absolute;
  inset: 0;
  background: var(--spark-solid);
  transform: translateY(101%);
  transition: transform .5s var(--ease);
}
.btn > *{ position: relative; z-index: 1; }
.btn:hover{ color: var(--on-spark); border-color: var(--spark-solid); }
.btn:hover::before{ transform: translateY(0); }
.btn__dot{
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--spark);
  transition: background-color .35s var(--ease);
}
.btn:hover .btn__dot{ background: var(--on-spark); }
.btn--lg{
  padding: 16px 28px;
  font-size: 0.95rem;
}
.btn--solid{
  background: var(--spark-solid);
  border-color: var(--spark-solid);
  color: var(--on-spark);
}
.btn--solid::before{ background: var(--ivory); }
.btn--solid .btn__dot{ background: var(--on-spark); }
.btn--solid:hover{ color: var(--ink); }
.btn--solid:hover .btn__dot{ background: var(--spark-solid); }
.btn--dark{
  border-color: color-mix(in oklch, var(--ink) 22%, transparent);
  color: var(--ink);
}
.btn--dark::before{ background: var(--ink); }
.btn--dark:hover{ color: var(--ivory); border-color: var(--ink); }
.btn--dark .btn__dot{ background: var(--spark-deep); }
.btn--dark:hover .btn__dot{ background: var(--spark); }

:where(a,button):focus-visible{
  outline: 2px solid var(--spark);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Apparitions ---------- */
.rv{
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .95s var(--ease), transform 1.15s var(--ease);
  transition-delay: calc(var(--d, 0) * 85ms);
}
.rv.is-in{ opacity: 1; transform: none; }

.rv-line{
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s var(--ease);
  transition-delay: calc(var(--d, 0) * 85ms);
}
.rv-line.is-in{ transform: scaleX(1); }

/* ---------- Ouverture ---------- */
.hero{
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-block: 120px 44px;
}
.hero__grid{
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
}
.hero__grid span{
  position: absolute;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--line-soft);
  transform: scaleY(0);
  transform-origin: top;
  animation: gridIn 1.6s var(--ease) forwards;
}
@keyframes gridIn{ to{ transform: scaleY(1); } }

.hero__top{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding-bottom: 26px;
  flex-wrap: wrap;
}
.hero__title{
  font-size: clamp(3.1rem, 12.4vw, 11.2rem);
  margin-block: clamp(18px, 3.4vw, 40px) clamp(24px, 3vw, 40px);
}
.hero__title .w{
  display: inline-block;
  opacity: 0;
  transform: translateY(0.42em) rotate(1.4deg);
  animation: wordIn 1.25s var(--ease) forwards;
  animation-delay: calc(var(--d) * 72ms + 220ms);
}
.hero__title .accent{ color: var(--spark); }
@keyframes wordIn{ to{ opacity: 1; transform: none; } }

.hero__foot{
  padding-top: 30px;
}
/* L'accroche porte seule le bas de l'ouverture : elle peut donc courir
   plus large, jusqu'a la limite de lisibilite d'une ligne. */
.hero__lead{
  max-width: 56ch;
  font-size: clamp(1.18rem, 1.95vw, 1.72rem);
  line-height: 1.46;
}
.hero__actions{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: clamp(26px, 3vw, 38px);
}

/* ---------- Chapitres ---------- */
.chapter{
  position: relative;
  padding-block: clamp(90px, 13vh, 168px);
}
.chapter__head{
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 60px);
  align-items: start;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.chapter__id{ display: flex; flex-direction: column; gap: 16px; }

/* Revelation du texte au defilement */
.wr{ max-width: 22ch; }
.wr .w{
  opacity: .17;
  transition: opacity .35s linear;
  display: inline-block;
}

/* ---------- 01 · L'etincelle ---------- */
.spark-body{
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 60px);
  margin-top: clamp(44px, 7vw, 96px);
}
.spark-body__text{ display: grid; gap: 22px; }
.facts{
  list-style: none;
  margin: clamp(36px, 5vw, 60px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 720px;
}
.facts li{
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr) auto;
  gap: 18px;
  align-items: baseline;
  padding: 17px 0;
  border-top: 1px solid var(--line-soft);
}
.facts li:last-child{ border-bottom: 1px solid var(--line-soft); }
.facts span:first-child{
  font-size: 0.72rem;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.14em;
  color: var(--spark);
}
.facts span:nth-child(2){ color: var(--ivory); font-weight: 500; }
.facts span:last-child{ color: var(--faint); font-size: 0.88rem; text-align: right; }

/* ---------- 02 · La trajectoire ---------- */
.traj__stage{ height: 460vh; position: relative; }
.traj__sticky{
  position: sticky;
  top: 0;
  height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.traj__cols{
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
  width: 100%;
}
.traj__steps{ position: relative; }
.traj__steps{ min-height: 412px; }
.step{
  position: absolute;
  inset: 0 0 auto 0;
  transform: translateY(30px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .55s var(--ease), transform .75s var(--ease), visibility .55s;
  display: grid;
  gap: 16px;
  align-content: start;
}
.step.is-on{
  opacity: 1;
  visibility: visible;
  transform: none;
}
.step.is-past{ transform: translateY(-30px); }
.step__k{
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.step__k b{
  font-size: 0.72rem;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.2em;
  color: var(--spark);
}
.step__k i{
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--faint);
  text-transform: uppercase;
}
.step p{ color: var(--muted); max-width: 44ch; margin: 0; }
.step ul{
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.step ul li{
  font-size: 0.74rem;
  font-stretch: 92%;
  letter-spacing: 0.02em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
}
.traj__bars{
  display: flex;
  gap: 6px;
  margin-top: 30px;
}
.traj__bars i{
  height: 2px;
  flex: 1;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.traj__bars i::after{
  content:'';
  position: absolute;
  inset: 0;
  background: var(--spark);
  transform: scaleX(var(--f, 0));
  transform-origin: left;
}
.traj__art{ position: relative; }
.traj__art svg{ width: 100%; height: auto; display: block; overflow: visible; }
.orbit-path{
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}
.orbit-run{
  fill: none;
  stroke: url(#gspark);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: var(--len);
  stroke-dashoffset: calc(var(--len) * (1 - var(--p, 0)));
}
.orbit-node circle{ transition: r .4s var(--ease), fill .4s var(--ease), opacity .4s var(--ease); }
.orbit-node text{
  font-size: 11px;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.16em;
  fill: var(--faint);
  transition: fill .4s var(--ease);
}
.orbit-node.is-on text{ fill: var(--ivory); }
.orbit-planet{
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

/* ---------- Piste d'athlétisme ----------
   Le panneau Sport reste dans le registre de dessin des deux autres :
   un tracé au filet, sans figure humaine. Le coureur est le point qui
   parcourt la ligne, selon la même mécanique que la trajectoire du
   chapitre 02. */
.piste .lice{ fill: none; stroke: currentColor; stroke-width: 1.5; }
.piste .lice--exterieure,
.piste .lice--interieure{ opacity: .26; }
.piste .lice--course{ opacity: .5; }
.piste .arrivee{ stroke: currentColor; stroke-width: 1.5; opacity: .45; }

.piste .mobile{
  offset-path: path('M70 43 H130 A32 32 0 0 1 130 107 H70 A32 32 0 0 1 70 43 Z');
  offset-rotate: 0deg;
  animation: tour 5.4s linear infinite;
}
.piste .mobile--t1{ animation-delay: -5.34s; }
.piste .mobile--t2{ animation-delay: -5.28s; }
.piste .mobile--t3{ animation-delay: -5.22s; }
.piste .mobile--tete{ animation-delay: -5.16s; }
@keyframes tour{
  from { offset-distance: 0%; }
  to   { offset-distance: 100%; }
}

/* ---------- 03 · Les mondes ---------- */
.worlds{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(44px, 6vw, 84px);
  background: var(--line-soft);
  border-block: 1px solid var(--line-soft);
}
.world{
  background: var(--ink);
  padding: clamp(26px, 3vw, 42px) clamp(20px, 2.4vw, 34px) clamp(30px, 4vw, 48px);
  display: grid;
  gap: 20px;
  align-content: start;
  position: relative;
  transition: background-color .5s var(--ease);
}
.world:hover{ background: var(--ink-2); }
.world__art{
  aspect-ratio: 4 / 3;
  width: 100%;
  color: var(--spark);
  transform: translateY(var(--py, 0px));
  will-change: transform;
}
.world__art svg{ width: 100%; height: 100%; display: block; }
.world__art [data-draw]{
  stroke-dasharray: var(--dl, 400);
  stroke-dashoffset: var(--dl, 400);
  transition: stroke-dashoffset 1.6s var(--ease);
  transition-delay: calc(var(--dd, 0) * 140ms);
}
.world.is-in .world__art [data-draw]{ stroke-dashoffset: 0; }
.world h3{
  font-family: var(--font-titre);
  font-size: 1.46rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}
.world p{ color: var(--muted); font-size: 0.95rem; margin: 0; }
.world__tags{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}
.world__tags li{
  font-size: 0.83rem;
  color: var(--faint);
  padding-left: 16px;
  position: relative;
}
.world__tags li::before{
  content:'';
  position: absolute;
  left: 0; top: 0.62em;
  width: 5px; height: 1px;
  background: var(--spark);
}
.worlds-note{
  margin-top: 26px;
  color: var(--faint);
  font-size: 0.95rem;
  max-width: 58ch;
}

/* ---------- 04 · L'ouvrage ---------- */
.craft{
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(30px, 5vw, 76px);
  margin-top: clamp(48px, 7vw, 96px);
  align-items: center;
}
.craft__list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.craft__list li{
  border-top: 1px solid var(--line-soft);
  padding: 22px 0;
  display: grid;
  gap: 7px;
}
.craft__list li:last-child{ border-bottom: 1px solid var(--line-soft); }
.craft__list h4{
  margin: 0;
  font-family: var(--font-titre);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.craft__list h4 em{
  font-style: normal;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--spark);
  font-weight: 600;
  font-stretch: 86%;
}
.craft__list p{ margin: 0; color: var(--muted); font-size: 0.93rem; max-width: 48ch; }

.devices{
  position: relative;
  aspect-ratio: 1 / 0.95;
  perspective: 1400px;
}
.dev{
  position: absolute;
  border-radius: 12px;
  background: linear-gradient(165deg, var(--ink-3), var(--ink-2));
  border: 1px solid var(--line);
  box-shadow: 0 34px 80px oklch(0.08 0.02 268 / .7);
  overflow: hidden;
  transform-style: preserve-3d;
}
.dev--web{
  left: 0; top: 0;
  width: 62%; aspect-ratio: 16 / 10;
  transform: translateY(calc(var(--pz, 0px) * -0.55));
}
.dev--desk{
  right: 0; top: 15%;
  width: 43%; aspect-ratio: 16 / 11;
  transform: translateY(calc(var(--pz, 0px) * 0.15));
  z-index: 1;
}
.dev--panel{
  left: 25%; bottom: 4%;
  width: 39%; aspect-ratio: 16 / 9;
  border-radius: 8px;
  box-shadow: 0 34px 80px oklch(0.08 0.02 268 / .7), inset 0 0 0 3px oklch(0.28 0.03 268);
  transform: translateY(calc(var(--pz, 0px) * 0.45));
  z-index: 2;
}
.dev--panel::after{
  content: '';
  position: absolute;
  left: 42%; right: 42%; bottom: -1px;
  height: 4px;
  background: var(--ink-3);
}
.dev--phone{
  left: 2%; bottom: 0;
  width: 19.5%; aspect-ratio: 9 / 18.5;
  border-radius: 18px;
  transform: translateY(calc(var(--pz, 0px) * 0.8));
  z-index: 3;
}
.dev--watch{
  right: 4%; bottom: 3%;
  width: 15.5%; aspect-ratio: 1 / 1.14;
  border-radius: 28%;
  overflow: visible;
  transform: translateY(calc(var(--pz, 0px) * 1.05));
  z-index: 4;
}
.dev--watch::before{
  content: '';
  position: absolute;
  left: 28%; right: 28%; top: -26%; bottom: -26%;
  border-radius: 7px;
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line-soft);
  z-index: -1;
}
.dev--watch::after{
  content: '';
  position: absolute;
  right: -4px; top: 36%;
  width: 4px; height: 16%;
  border-radius: 0 2px 2px 0;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-left: 0;
}
.dev--watch .dev__body{
  padding: 9px;
  gap: 5px;
  height: 100%;
  align-content: center;
  justify-items: center;
}
.dev--panel .dev__body{ padding: 10px; gap: 7px; }
.dev__bar{
  height: 26px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding-inline: 11px;
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in oklch, var(--ink) 40%, transparent);
}
.dev__bar i{
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--line);
}
.dev__bar span{
  margin-left: 8px;
  height: 6px;
  flex: 1;
  max-width: 120px;
  border-radius: 3px;
  background: var(--line-soft);
}
.dev__body{ padding: 12px; display: grid; gap: 8px; }
.ui-row{ display: flex; gap: 8px; }
.ui-card{
  border-radius: 7px;
  background: color-mix(in oklch, var(--ivory) 5%, transparent);
  border: 1px solid var(--line-soft);
  flex: 1;
  padding: 9px;
  display: grid;
  gap: 6px;
  align-content: start;
}
.ui-bar{
  height: 5px;
  border-radius: 3px;
  background: var(--line);
}
.ui-bar.w40{ width: 40%; }
.ui-bar.w60{ width: 60%; }
.ui-bar.w75{ width: 75%; }
.ui-bar.spark{ background: var(--spark); opacity: .85; }
.ui-chart{
  height: 54px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
}
.ui-chart i{
  flex: 1;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, var(--spark), color-mix(in oklch, var(--spark) 18%, transparent));
  height: var(--h);
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform .9s var(--ease);
  transition-delay: calc(var(--dd) * 70ms);
}
.is-in .ui-chart i{ transform: scaleY(1); }
.ui-ring{
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 4px solid var(--line);
  border-top-color: var(--spark);
  border-right-color: var(--spark);
  margin: 2px auto;
}
.dev--phone .dev__body{ padding: 9px; gap: 6px; }
.dev__notch{
  width: 34%;
  height: 14px;
  margin: 6px auto 4px;
  border-radius: 999px;
  background: color-mix(in oklch, var(--ink) 70%, transparent);
}

/* ---------- 05 · Dare One ---------- */
.proof{
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 78% 0%, oklch(0.42 0.15 300 / .28), transparent 62%),
    color-mix(in oklch, var(--ink-2) 62%, transparent);
}
.proof__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: clamp(30px, 5vw, 76px);
  align-items: center;
}
.proof__text{ display: grid; gap: 22px; }
.proof__stats{
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.proof__stats li{
  display: flex;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid var(--line-soft);
  padding: 13px 0;
  font-size: 0.92rem;
  color: var(--muted);
}
.proof__stats b{
  color: var(--ivory);
  font-weight: 600;
  font-stretch: 100%;
}
.shot{
  border-radius: 16px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(170deg, oklch(0.24 0.075 292), oklch(0.16 0.05 285));
  box-shadow: 0 44px 90px oklch(0.08 0.02 268 / .72);
  transform: translateY(var(--pz2, 0px));
}
.shot__top{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-bottom: 1px solid oklch(0.72 0.14 300 / .18);
}
.shot__top b{
  font-size: 0.74rem;
  font-weight: 700;
  font-stretch: 90%;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: oklch(0.86 0.09 300);
}
.shot__top span{
  margin-left: auto;
  font-size: 0.7rem;
  color: oklch(0.72 0.05 292);
}
.shot__body{
  padding: 16px;
  display: grid;
  gap: 11px;
  grid-template-columns: repeat(3, 1fr);
}
.shot__card{
  border-radius: 12px;
  background: oklch(0.28 0.075 292 / .55);
  border: 1px solid oklch(0.72 0.14 300 / .16);
  padding: 13px;
  display: grid;
  gap: 9px;
  align-content: start;
}
.shot__card--wide{ grid-column: span 2; }
.shot__lab{
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: oklch(0.76 0.06 296);
  font-weight: 600;
  font-stretch: 86%;
}
.shot__num{
  font-family: var(--font-titre);
  font-size: 1.54rem;
  font-weight: 700;
  letter-spacing: -0.026em;
  line-height: 1;
  color: oklch(0.97 0.02 300);
}
.shot__line{
  height: 42px;
  border-radius: 6px;
  background:
    linear-gradient(90deg, oklch(0.7 0.17 320 / .5), oklch(0.7 0.17 300 / .12)),
    repeating-linear-gradient(90deg, transparent 0 15px, oklch(0.72 0.14 300 / .14) 15px 16px);
}
.shot__gauge{
  height: 6px;
  border-radius: 999px;
  background: oklch(0.72 0.14 300 / .2);
  overflow: hidden;
}
.shot__gauge i{
  display: block;
  height: 100%;
  width: var(--w);
  border-radius: 999px;
  background: linear-gradient(90deg, oklch(0.68 0.19 320), oklch(0.8 0.14 350));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.4s var(--ease);
  transition-delay: calc(var(--dd) * 130ms);
}
.is-in .shot__gauge i{ transform: scaleX(1); }

/* ---------- Bande des partenaires ---------- */
.partenaires{
  position: relative;
  padding-block: clamp(70px, 10vh, 128px);
}
.partenaires__tete{
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 60px);
  align-items: start;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.marques{
  list-style: none;
  margin: clamp(38px, 5vw, 68px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border-block: 1px solid var(--line-soft);
}
.marque-p{
  background: var(--ink);
  display: grid;
  place-items: center;
  gap: 14px;
  padding: 32px 18px;
  color: var(--faint);
  transition: color .35s var(--ease), background-color .35s var(--ease);
}
.marque-p:hover{ color: var(--ivory); background: var(--ink-2); }
.marque-p svg{ width: 34px; height: 34px; }
.marque-p span{
  font-size: 0.74rem;
  font-weight: 600;
  font-stretch: 88%;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
}
.partenaires__note{
  margin: 22px 0 0;
  font-size: 0.85rem;
  color: var(--faint);
  max-width: 60ch;
}
@media (max-width: 1024px){
  .partenaires__tete{ grid-template-columns: minmax(0, 1fr); }
  .marques{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px){
  .marques{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .marque-p{ padding: 26px 12px; }
}

/* ---------- 06 · Precision suisse ---------- */
.swiss{
  background: var(--ivory);
  color: var(--ink);
  position: relative;
  z-index: 1;
}
.swiss .label{ color: oklch(0.5 0.03 268); }
.swiss .numeral{ -webkit-text-stroke-color: oklch(0.2 0.03 268 / .3); }
.swiss .chapter__head{ border-top-color: oklch(0.2 0.03 268 / .16); }
.swiss .body{ color: oklch(0.42 0.025 268); }
.swiss .lead{ color: var(--ink); }
.scale{
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 34px;
  margin-bottom: 30px;
}
.scale i{
  flex: 0 0 1px;
  background: oklch(0.2 0.03 268 / .3);
  width: 1px;
  height: 8px;
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform .5s var(--ease);
  transition-delay: calc(var(--dd) * 22ms);
}
.scale.is-in i{ transform: scaleY(1); }
.scale i.tall{ height: 22px; background: oklch(0.2 0.03 268 / .55); }
.scale i.mark{ height: 34px; background: var(--spark-deep); width: 2px; }
.swiss__list{
  list-style: none;
  margin: clamp(40px, 6vw, 80px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(28px, 5vw, 72px);
}
.swiss__list li{
  border-top: 1px solid oklch(0.2 0.03 268 / .16);
  padding: 26px 0;
  display: grid;
  gap: 9px;
}
.swiss__list h4{
  margin: 0;
  font-family: var(--font-titre);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -0.018em;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.swiss__list h4 em{
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.18em;
  color: var(--spark-deep);
}
.swiss__list p{ margin: 0; color: oklch(0.42 0.025 268); font-size: 0.95rem; max-width: 46ch; }
.swiss__list li.is-feature{
  grid-column: 1 / -1;
  border-top: 2px solid oklch(0.2 0.03 268 / .42);
  padding-bottom: 30px;
}
.swiss__list li.is-feature h4{ font-size: clamp(1.5rem, 2.8vw, 2.05rem); }
.swiss__list li.is-feature p{ max-width: 74ch; font-size: 1.02rem; }
.swiss__cta{
  margin-top: clamp(40px, 5vw, 64px);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.swiss__cross{
  width: 26px; height: 26px;
  flex: none;
  color: var(--spark-deep);
}

/* ---------- Epilogue ---------- */
.outro{
  min-height: 92svh;
  display: flex;
  align-items: center;
  padding-block: clamp(90px, 12vh, 150px);
  position: relative;
}
.outro__title{
  font-size: clamp(2.6rem, 9.4vw, 8.2rem);
  margin-bottom: clamp(26px, 4vw, 46px);
}
.outro__row{
  display: flex;
  gap: clamp(18px, 3vw, 40px);
  align-items: center;
  flex-wrap: wrap;
  margin-top: 34px;
}
.ico{
  flex: none;
  width: 17px;
  height: 17px;
  color: var(--spark);
}
.lieu{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}
.lieu .ico{ width: 18px; height: 18px; }

.foot{
  border-top: 1px solid var(--line);
  padding-block: 34px 44px;
}
.foot__in{
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.foot p{ margin: 0; color: var(--faint); font-size: 0.83rem; }
.foot a{ color: var(--muted); text-decoration: none; }
.foot a:hover{ color: var(--spark); }
.foot__links{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px 34px;
  font-size: 0.83rem;
}
@media (max-width: 620px){
  .foot__links{ grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Épilogue et formulaire ---------- */
.outro__grid{
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: clamp(30px, 5vw, 76px);
  align-items: start;
  margin-top: clamp(26px, 4vw, 44px);
}
.outro__aside{ display: grid; gap: 26px; }
.outro__notes{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.outro__notes li{
  border-top: 1px solid var(--line-soft);
  padding: 14px 0;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  gap: 13px;
  align-items: flex-start;
}
.outro__notes li .ico{ margin-top: 1px; }

.form{
  display: grid;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(22px, 3vw, 34px);
  background: color-mix(in oklch, var(--ink-2) 55%, transparent);
  backdrop-filter: blur(8px);
}
.form__row{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.field{ display: grid; gap: 7px; }
.field__label{
  font-size: 0.7rem;
  font-weight: 600;
  font-stretch: 86%;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.field__label em{
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--faint);
  font-weight: 500;
}
.field__input{
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  color: var(--ivory);
  background: color-mix(in oklch, var(--ivory) 4%, transparent);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 13px 15px;
  min-height: 46px;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), box-shadow .22s var(--ease);
}
.field__input::placeholder{ color: var(--faint); }
.field__input:hover{ border-color: var(--line-strong, var(--line)); }
.field__input:focus{
  outline: none;
  border-color: var(--spark);
  background: color-mix(in oklch, var(--ivory) 7%, transparent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--spark) 24%, transparent);
}
.field__input--zone{ resize: vertical; min-height: 148px; line-height: 1.6; }
.choix{
  border: 0;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}
.choix__liste{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.choix__item{
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 17px 10px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  transition: color .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease);
}
.choix__item:hover{
  color: var(--ivory);
  border-color: color-mix(in oklch, var(--ivory) 28%, transparent);
}
.choix__item input{
  position: absolute;
  width: 1px; height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.choix__marque{
  flex: none;
  display: grid;
  place-items: center;
  width: 17px; height: 17px;
  border-radius: 5px;
  border: 1.5px solid color-mix(in oklch, var(--ivory) 30%, transparent);
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}
.choix__marque::after{
  content: '';
  width: 4px; height: 8px;
  border: solid transparent;
  border-width: 0 2px 2px 0;
  transform: translateY(-1px) rotate(45deg);
  transition: border-color .22s var(--ease);
}
.choix__item:has(input:checked){
  color: var(--on-spark);
  background: var(--spark-solid);
  border-color: var(--spark-solid);
  font-weight: 600;
}
.choix__item:has(input:checked) .choix__marque{
  background: var(--on-spark);
  border-color: var(--on-spark);
}
.choix__item:has(input:checked) .choix__marque::after{ border-color: var(--spark-solid); }
.choix__item:has(input:focus-visible){
  outline: 2px solid var(--spark);
  outline-offset: 3px;
}

.field--faute .field__input{
  border-color: var(--error);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--error) 20%, transparent);
}
.field__faute{
  margin: 0;
  font-size: 0.82rem;
  color: var(--error);
  display: flex;
  gap: 7px;
  align-items: baseline;
}
.field__faute::before{
  content: '!';
  flex: none;
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 1px solid currentColor;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 13px;
  text-align: center;
  transform: translateY(2px);
}

/* Piège à robots : hors écran, hors tabulation, hors arbre d'accessibilité. */
.pot{
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form__mention{
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--faint);
  max-width: 56ch;
}
.form__pied{
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.form__etat{
  margin: 0;
  font-size: 0.85rem;
  color: var(--error);
  flex: 1 1 220px;
}
.form__etat:empty{ display: none; }

.btn.is-occupe{ pointer-events: none; opacity: .8; }
.btn.is-occupe .btn__dot{ animation: pouls .9s ease-in-out infinite; }
@keyframes pouls{
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(.4); opacity: .35; }
}

/* L'adresse n'est jamais écrite en clair dans la source : elle est
   reconstituée au chargement. Sans JavaScript, le repli renvoie vers le
   formulaire, qui reste le chemin normal. */
.courriel a{ color: var(--spark); text-decoration: none; border-bottom: 1px solid color-mix(in oklch, var(--spark) 40%, transparent); }
.courriel a:hover{ border-bottom-color: var(--spark); }

.form-recu{
  border: 1px solid color-mix(in oklch, var(--spark) 34%, transparent);
  border-radius: 20px;
  padding: clamp(26px, 3.4vw, 40px);
  background: color-mix(in oklch, var(--spark) 7%, transparent);
  display: grid;
  gap: 16px;
}
.form-recu__mention{
  margin: 0;
  font-size: 0.8rem;
  color: var(--faint);
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

@media (max-width: 1024px){
  .outro__grid{ grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px){
  .form__row{ grid-template-columns: minmax(0, 1fr); }
  .form__pied{ gap: 12px; }
  .form__pied .btn{ width: 100%; justify-content: center; }
}

/* ---------- Adaptation aux petits écrans ---------- */
@media (max-width: 1024px){
  .chapter__head,
  .spark-body,
  .craft,
  .proof__grid{ grid-template-columns: minmax(0, 1fr); }
  .traj__cols{ grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .traj__art{ order: -1; max-width: 264px; margin-inline: auto; }
  .traj__cols .numeral{ display: none; }
  .traj__cols .chapter__id{ margin-bottom: 18px !important; gap: 8px; }
  .traj__cols .h-chapter{ font-size: clamp(1.9rem, 6vw, 2.6rem); }
  .traj__steps{ min-height: 372px; }
  .step h3{ font-size: clamp(1.2rem, 4.4vw, 1.6rem); }
  .worlds{ grid-template-columns: minmax(0, 1fr); }
  .world{ transform: none; }
  .nav__links .nav__link{ display: none; }
  .nav__links .nav__link--cta{ display: inline-flex; }
}
@media (max-width: 1024px) and (max-height: 745px){
  .traj__art{ max-width: 208px; }
  .traj__cols .label{ display: none; }
  .step p{ font-size: 0.9rem; }
  .traj__steps{ min-height: 344px; }
}
@media (max-width: 760px){
  body{ font-size: 16px; }
  .hero{ min-height: 92svh; }
  .hero__top{ align-items: flex-start; flex-direction: column; gap: 10px; }
  .swiss__list{ grid-template-columns: minmax(0, 1fr); }
  .facts li{ grid-template-columns: 2.6rem minmax(0, 1fr); }
  .facts span:last-child{ grid-column: 2; text-align: left; }
  .traj__stage{ height: 400vh; }
  .devices{ aspect-ratio: 1 / 1; }
  .devices{ aspect-ratio: 1 / 1.02; }
  .dev--web{ width: 72%; }
  .dev--desk{ width: 50%; top: 14%; }
  .dev--panel{ width: 46%; left: 22%; }
  .dev--phone{ width: 23%; }
  .dev--watch{ width: 19%; }
  .shot__body{ grid-template-columns: repeat(2, 1fr); }
  .shot__card--wide{ grid-column: span 2; }
  .outro__row{ gap: 18px; }
}
@media (max-width: 520px){
  .hero__title{ font-size: clamp(2.6rem, 13vw, 4rem); }
  .lead{ max-width: none; }
  .wr{ max-width: none; }
  .step ul{ display: none; }
}