/* ============================================================================
   Leversens · site.css v3 "Salle des marchés" (refonte 14/09/2026, v6 16/09).
   Marine profond, verre dépoli, lueurs bleues, zéro or. Fond = un seul dégradé
   vertical sur toute la page, rien d'animé derrière le contenu.
   ========================================================================== */
:root{
  --ink:#070b16; --ink2:#0a1020; --ink3:#0d1526;
  --blue:#3a7bd5; --blue-hi:#5ba0f5; --blue-pale:#8ec2ff;
  --blue-soft:rgba(91,160,245,.12); --line:rgba(91,160,245,.16); --line2:rgba(91,160,245,.3);
  --txt:#eef2f8; --sec:rgba(238,242,248,.68); --ter:rgba(238,242,248,.5);
  --glass:linear-gradient(165deg,rgba(20,30,55,.55),rgba(10,16,32,.65));
  --ease:cubic-bezier(.22,1,.36,1);
  --green:#2fbf71; --red:#e5484d;
}
*{margin:0;box-sizing:border-box}
html{background:var(--ink);color-scheme:dark;scroll-behavior:smooth;scroll-padding-top:80px}
/* fond : un seul dégradé, du haut de la page tout en bas, sans rupture */
body{min-height:100vh;background:linear-gradient(180deg,#070b16 0%,#0a1224 45%,#0c1a36 100%);
  color:var(--txt);font-family:Inter,system-ui,sans-serif;font-size:15.5px;line-height:1.65;overflow-x:hidden}
main,footer{position:relative;z-index:2}   /* la barre .gnav garde son sticky de nav.css */
::selection{background:#2c66c4;color:#fff}
.mono{font-family:'JetBrains Mono',monospace;font-variant-numeric:tabular-nums}
a{color:inherit}
[hidden]{display:none!important}
.wrap{max-width:1240px;margin:0 auto;padding:0 clamp(1rem,3.5vw,2rem)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip-path:inset(50%);white-space:nowrap;border:0}

/* ---- héros : fluide, pas d'écran isolé ------------------------------------ */
.hero{padding:clamp(.9rem,2vh,1.6rem) 0 clamp(2rem,4vh,3rem);text-align:center}
.hero .wrap > h1:first-child{margin-top:0}
.kick{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--blue-hi)}
.hero h1{font-family:'Crimson Pro',Georgia,serif;font-weight:500;
  font-size:clamp(2.5rem,5.6vw,4.3rem);line-height:1.08;letter-spacing:-.01em;
  margin:.8rem auto 1rem;max-width:22ch}
.blue-word{background:linear-gradient(100deg,#3a7bd5,#5ba0f5 55%,#8ec2ff);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{font-size:1.06rem;color:var(--sec);max-width:56ch;margin:0 auto}
.cta-row{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap;margin-top:1.7rem}
.btn-p{display:inline-flex;align-items:center;gap:.55rem;padding:.8rem 1.6rem;border-radius:10px;
  text-decoration:none;font-weight:600;font-size:.97rem;color:#fff;
  background:linear-gradient(135deg,#2a60bb,#3170cf);
  box-shadow:0 8px 28px rgba(58,123,213,.35),inset 0 1px 0 rgba(255,255,255,.18);
  transition:transform .2s var(--ease),box-shadow .2s}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(58,123,213,.5),inset 0 1px 0 rgba(255,255,255,.18)}
.btn-g{display:inline-flex;align-items:center;gap:.55rem;padding:.8rem 1.6rem;border-radius:10px;
  text-decoration:none;font-weight:500;font-size:.97rem;color:var(--txt);
  border:1px solid var(--line2);background:rgba(91,160,245,.06);transition:all .2s var(--ease)}
.btn-g:hover{border-color:var(--blue-hi);background:var(--blue-soft);transform:translateY(-2px)}
.btn-p:focus-visible,.btn-g:focus-visible{outline:2px solid #8ec2ff;outline-offset:3px}

/* ---- La Percée : le logo s'ouvre sur la flèche en bougies, pleine largeur --- */
.ouv{width:100%;overflow:hidden}
.ouv svg{display:block;width:100%;height:auto;aspect-ratio:1440/400;max-height:46vh;margin:0 auto}
@media(max-width:640px){.ouv svg{aspect-ratio:720/560}}
#sheen{transition:opacity .3s}
#farrTrace{transition:opacity .35s}
/* le L de Leversens : surgit au premier plan quand on a parcouru toute la flèche */
#egg{font-family:'Crimson Pro',Georgia,serif;font-weight:500;opacity:0;pointer-events:none;
  transform-box:fill-box;transform-origin:center;transform:scale(.55);
  transition:opacity .55s var(--ease),transform .55s var(--ease)}
#egg.on{opacity:1;transform:scale(1)}
/* le texte héros arrive pendant l'ouverture, chorégraphié par site.js */
:root.js #hero-txt{opacity:0;transform:translateY(14px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
:root.js #hero-txt.on{opacity:1;transform:none}
/* état de repos : deux micro-vies aux périodes premières entre elles */
#stage.idle #chev{animation:hpulse 3.1s ease-in-out infinite}
#stage.idle #ponde{animation:ponde 7.3s ease-out infinite}
#stage.paused #chev,#stage.paused #ponde{animation-play-state:paused}
@keyframes hpulse{0%,100%{opacity:1}50%{opacity:.78}}
@keyframes ponde{0%,88%{opacity:0;r:6px}90%{opacity:.3;r:8px}100%{opacity:0;r:34px}}

/* ---- sections : cartes de verre, grille asymétrique ------------------------ */
.zone{padding:clamp(3.2rem,7vh,5rem) 0 0}
.zone-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;
  flex-wrap:wrap;margin-bottom:1.5rem}
.zone-head h2{font-family:'Crimson Pro',Georgia,serif;font-weight:500;font-size:clamp(1.7rem,3.2vw,2.3rem)}
.zone-head .zk{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--blue-hi)}
.cards{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:1.1rem}
.cards.duo{grid-template-columns:1.25fr 1fr}
.cards.quad{grid-template-columns:1fr 1fr}
.cards.hexa{grid-template-columns:repeat(3,1fr)}
@media(max-width:960px){.cards,.cards.duo,.cards.hexa{grid-template-columns:1fr 1fr}
  .cards > :nth-child(3):last-child{grid-column:1/-1}}
@media(max-width:640px){.cards,.cards.duo,.cards.quad,.cards.hexa{grid-template-columns:1fr}}
.scard{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  text-align:center;gap:.55rem;padding:2.2rem 1.6rem 2.1rem;min-height:15rem;
  border-radius:16px;border:1px solid var(--line);background:var(--glass);text-decoration:none;
  overflow:hidden;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s}
.scard::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(420px 200px at var(--mx,50%) var(--my,0%),rgba(91,160,245,.14),transparent 65%);
  opacity:0;transition:opacity .3s}
.scard:hover{transform:translateY(-4px);border-color:var(--line2);
  box-shadow:0 18px 50px rgba(2,5,12,.55)}
.scard:hover::before{opacity:1}
.scard .ci{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(91,160,245,.1);border:1px solid var(--line);color:var(--blue-hi);margin-bottom:.5rem;
  transition:transform .35s var(--ease),background .3s,border-color .3s,color .3s,box-shadow .3s}
.scard .ci svg{width:26px;height:26px;transform-origin:center}
/* les icônes respirent doucement, jamais en cadence entre elles */
:root.js .scard .ci{animation:cifloat 5.3s ease-in-out infinite}
:root.js .cards > :nth-child(2) .ci{animation-duration:6.1s}
:root.js .cards > :nth-child(3) .ci{animation-duration:7.3s}
@keyframes cifloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.scard:hover .ci{background:var(--blue);border-color:var(--blue);color:#fff;
  box-shadow:0 12px 28px rgba(58,123,213,.4)}
:root.js .scard:hover .ci{animation:none;transform:translateY(-5px) scale(1.09)}
.scard:hover .ci svg{animation:ipop .6s var(--ease)}
@keyframes ipop{0%{transform:scale(1) rotate(0)}42%{transform:scale(.8) rotate(-8deg)}100%{transform:scale(1) rotate(0)}}
.scard h3{font-family:'Crimson Pro',Georgia,serif;font-weight:500;font-size:1.45rem;color:var(--txt)}
.scard.major h3{font-size:1.75rem}
.scard p{font-size:.9rem;color:var(--sec);line-height:1.55}
.scard p{max-width:36ch}
.scard.major p{max-width:46ch}
.scard:focus-visible{outline:2px solid var(--blue-hi);outline-offset:3px;border-color:var(--line2)}
:root.js .scard:focus-visible .ci{animation:none;transform:translateY(-5px) scale(1.09)}
.scard:focus-visible .ci{background:var(--blue);border-color:var(--blue);color:#fff}
.scard .soon{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.04em;
  color:var(--blue-hi);border:1px solid var(--line2);border-radius:99px;padding:.02rem .5rem;
  margin-left:.5rem;vertical-align:4px}

/* ---- performances : entrées amples, la photo et le texte viennent des côtés --- */
/* le chapitre ne bouge pas lui-même : ce sont ses deux moitiés qui entrent */
:root.js .pchap.rv,:root.js .pmore.rv{opacity:1;translate:0 0}
:root.js .pchap .pshot,:root.js .pchap .pinfo{opacity:0;
  transition:opacity 1.3s var(--ease),translate 1.3s var(--ease)}
:root.js .pchap .pshot{translate:-72px 26px}
:root.js .pchap .pinfo{translate:72px 26px;transition-delay:.16s}
:root.js .pchap.rev .pshot{translate:72px 26px}
:root.js .pchap.rev .pinfo{translate:-72px 26px}
:root.js .pchap.on .pshot,:root.js .pchap.on .pinfo{opacity:1;translate:0 0}
/* les vignettes montent l'une après l'autre */
:root.js .pmore .ptile{opacity:0;translate:0 64px;
  transition:opacity 1.1s var(--ease),translate 1.1s var(--ease)}
:root.js .pmore.on .ptile{opacity:1;translate:0 0}
:root.js .pmore .ptile:nth-child(2){transition-delay:.12s}
:root.js .pmore .ptile:nth-child(3){transition-delay:.24s}
:root.js .pmore .ptile:nth-child(4){transition-delay:.36s}
:root.js .pmore .ptile:nth-child(5){transition-delay:.48s}

/* ---- performances : trois chapitres, la preuve à côté du chiffre ---------- */
.zone.perf{padding-top:clamp(5.5rem,13vh,9.5rem);
  overflow-x:clip}   /* les moitiés qui entrent par les côtés n'élargissent pas la page sur mobile */
.pchap{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(1.6rem,4.5vw,4rem);
  align-items:center;padding:clamp(1.4rem,3.5vh,2.6rem) 0}
@media(min-width:821px){.pchap.rev{grid-template-columns:.94fr 1.06fr}.pchap.rev .pshot{order:2}}
@media(max-width:820px){.pchap{grid-template-columns:1fr;gap:1.5rem}}
.pinfo::before{content:"";display:block;width:42px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#3a7bd5,#8ec2ff);margin-bottom:1.1rem}
.pinfo .pv{font-family:'JetBrains Mono',monospace;font-weight:500;line-height:1;
  font-size:clamp(2.4rem,5.6vw,3.8rem);letter-spacing:-.02em;
  background:linear-gradient(100deg,#5ba0f5,#8ec2ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.pinfo .lab{font-size:1rem;color:var(--txt);margin-top:.6rem}
.pinfo p{font-size:.94rem;color:var(--sec);margin-top:1rem;max-width:48ch}
/* la grande pièce : entière, jamais rognée, lisible */
.pshot{margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--glass);
  cursor:zoom-in;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.pshot:hover,.pshot:focus-within{transform:translateY(-5px);border-color:var(--line2);
  box-shadow:0 26px 70px rgba(2,5,12,.65)}
.pshot img{display:block;width:100%;height:auto}
/* les pièces secondaires : vignettes cadrées sur le haut, avec leur légende */
.pmore{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:.2rem 0 clamp(1rem,3vh,2.2rem)}
.ptile{flex:0 1 calc(33.333% - .67rem)}
@media(max-width:1000px){.ptile{flex-basis:calc(50% - .5rem)}}
@media(max-width:620px){.ptile{flex-basis:100%}}
.ptile{margin:0;min-width:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--glass);
  cursor:zoom-in;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s}
.ptile:hover,.ptile:focus-within{transform:translateY(-4px);border-color:var(--line2);
  box-shadow:0 16px 44px rgba(2,5,12,.55)}
.ptile img{display:block;width:100%;aspect-ratio:3/2;object-fit:cover;object-position:top}
.ptile figcaption{display:flex;background:transparent;justify-content:space-between;gap:.5rem;align-items:baseline;
  font-family:'JetBrains Mono',monospace;font-size:.75rem;color:var(--ter);padding:.7rem .85rem .75rem}
.ptile figcaption b{color:var(--blue-pale);font-weight:500}
.plaque a.pk{display:block;color:inherit;text-decoration:none}
.plaque a.pk:focus-visible{outline:2px solid var(--blue-hi);outline-offset:-3px;border-radius:10px}
.perf-note{font-size:.88rem;color:var(--ter);margin-top:.4rem}
dialog.lb{border:0;padding:0;background:transparent;max-width:min(94vw,1100px)}
dialog.lb::backdrop{background:rgba(3,6,14,.85);backdrop-filter:blur(8px)}
dialog.lb img{display:block;max-width:100%;max-height:84vh;border-radius:10px;border:1px solid var(--line2)}
dialog.lb .cap{font-family:'JetBrains Mono',monospace;font-size:.75rem;color:var(--sec);
  text-align:center;padding:.6rem 0}
dialog.lb .lb-x{position:absolute;top:.4rem;right:.4rem;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line2);background:rgba(7,11,22,.75);color:var(--txt);font-size:1rem;
  cursor:pointer;line-height:1}
dialog.lb .lb-x:hover{background:#2c66c4;border-color:#2c66c4}
dialog.lb .lb-x:focus-visible{outline:2px solid #8ec2ff;outline-offset:2px}

/* ---- à propos + footer ------------------------------------------------------ */
.about{max-width:660px;margin:0 auto;padding:clamp(3rem,7vh,4.5rem) 1.2rem;text-align:center}
.about::before{content:"";display:block;width:44px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#3a7bd5,#8ec2ff);margin:0 auto 1.5rem}
.about p{font-family:'Crimson Pro',Georgia,serif;font-size:1.22rem;font-style:italic;
  line-height:1.65;color:var(--sec)}
.about .about-2{margin-top:1.1rem}
.site-foot{border-top:1px solid var(--line);padding:2.4rem 0 2rem}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:1.6rem}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
.site-foot .fmark{display:flex;align-items:center;gap:.55rem;font-family:'Crimson Pro',Georgia,serif;
  font-size:1.15rem;color:var(--txt)}
.site-foot .fmark svg{width:22px;height:22px}
.site-foot h4,.site-foot .fh{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue-hi);margin:0 0 .7rem;font-weight:500;line-height:1.4}
.site-foot a{display:block;font-size:.87rem;color:var(--sec);text-decoration:none;padding:.18rem 0;
  transition:color .18s}
.site-foot a:hover{color:var(--blue-pale)}
.site-foot a:focus-visible,.crumbs a:focus-visible{outline:2px solid #8ec2ff;outline-offset:2px;border-radius:4px}
.foot-legal{margin-top:2rem;font-size:.75rem;color:var(--ter)}

/* ---- pages de section ------------------------------------------------------- */
.crumbs{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.05em;color:var(--ter);
  padding-top:1.6rem}
.crumbs a{color:var(--ter);text-decoration:none}
.crumbs a:hover{color:var(--blue-pale)}
.crumbs .sep{margin:0 .45rem;color:rgba(91,160,245,.8)}
.section-hero{padding:clamp(1.6rem,4vh,2.6rem) 0 clamp(1.4rem,3vh,2rem);text-align:center}
.section-hero h1{font-family:'Crimson Pro',Georgia,serif;font-weight:500;
  font-size:clamp(2.2rem,4.6vw,3.4rem);margin:.5rem 0 .5rem}
.section-hero .lede{color:var(--sec);max-width:58ch;font-size:1rem;margin:0 auto}
.next-up{padding:clamp(2.4rem,6vh,3.6rem) 0 3rem;text-align:center}

/* révélation douce (contenu visible sans JS) */
:root.js .rv{opacity:0;translate:0 40px;transition:opacity 1s var(--ease),translate 1s var(--ease)}
:root.js .rv.on{opacity:1;translate:0 0}
:root.js .cards .rv:nth-child(2){transition-delay:.14s}
:root.js .cards .rv:nth-child(3){transition-delay:.28s}
:root.js .cards .rv:nth-child(4){transition-delay:.42s}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  :root.js .rv,:root.js .rv.on{opacity:1;translate:0 0;transition:none}
  :root.js .pchap .pshot,:root.js .pchap .pinfo,:root.js .pmore .ptile{opacity:1;translate:0 0;transition:none}
  .btn-p,.btn-g,.scard,.scard .ci,.plaque{transition:none}
  #stage.idle #chev,#stage.idle #ponde{animation:none}
  #egg,#farrTrace,#sheen{transition:none}
  :root.js .scard .ci{animation:none}
  .scard:hover .ci svg{animation:none}
  :root.js #hero-txt{opacity:1;transform:none;transition:none}
}

@media print{
  .gnav,.gmobile,.ouv,dialog,.gburger{display:none!important}
  body{background:#fff;color:#111}
  .hero h1,.zone-head h2,.scard h3,.scard p,.about p,.lede{color:#111!important}

  .blue-word{-webkit-text-fill-color:#111;color:#111;background:none}
  .scard,.pshot,.ptile{border-color:#ccc;background:#fff;box-shadow:none}
  .pchap{grid-template-columns:1fr;gap:1rem}
  .ptile img{aspect-ratio:auto;object-fit:contain}
  html{background:#fff;color-scheme:light}
  .crumbs,.crumbs a,.kick,.zone-head .zk,.site-foot h4,.scard .ci,.perf-note,.ptile figcaption,.ptile figcaption b,.pinfo .lab,.pinfo p{color:#111!important}
  .pinfo .pv{-webkit-text-fill-color:#111;color:#111;background:none}
  .scard::before,.about::before{display:none}
  :root.js .rv,:root.js #hero-txt{opacity:1;translate:0 0;transform:none}
  :root.js .pchap .pshot,:root.js .pchap .pinfo,:root.js .pmore .ptile{opacity:1;translate:0 0}
  .site-foot,.site-foot a,.foot-legal{background:#fff;color:#333}
}