/* ════════════════════════════════════════════════════════════════════════════
   kAIros campus · édition collège et lycée
   Aucun compte, aucun cookie, aucun stockage, aucune requête tierce :
   polices auto-hébergées, scripts servis depuis le même domaine (CSP stricte).
   Charte kAIros : teal #1ea7a0, encre, crème. Jost · Cormorant Garamond · DM Mono.

   Mise en page d'une leçon : trois zones qui ne se recouvrent jamais.
     barre du haut (--top) · zone du tableau · barre de navigation (--bottom)
   Le tableau défile verticalement s'il est plus haut que sa zone.
   ════════════════════════════════════════════════════════════════════════════ */

:root{
  --teal:#1ea7a0; --teal2:#147a75; --teal3:#3ec8c0;
  --r:18px; --rs:12px;
  --top:64px; --bottom:76px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --spring:cubic-bezier(.34,1.56,.64,1);
  --f-body:'Jost',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-disp:'Cormorant Garamond',Georgia,serif;
  --f-mono:'DM Mono',ui-monospace,Menlo,Consolas,monospace;

  /* Registre SOMBRE (défaut : salle tamisée, projection) */
  --bg:#070a0e; --bg2:#0e1419; --panel:#111a21; --panel2:#16212a;
  --line:rgba(255,255,255,.09); --line2:rgba(255,255,255,.17);
  --tx1:#f5f3ef; --tx2:#b3bdc5; --tx3:#7d8994;
  --accent:#3ec8c0; --accent2:#8be8df; --accent3:#8f7cff; --warm:#ffae6b;
  --ok:#35d08f; --err:#ff6b5e;
  --glow:0 0 0 1px rgba(62,200,192,.35),0 10px 40px -8px rgba(62,200,192,.45);
  --card-sh:0 24px 60px -20px rgba(0,0,0,.7),0 2px 6px rgba(0,0,0,.3);
  --grid-ln:rgba(62,200,192,.045);
  --aur1:rgba(30,167,160,.20); --aur2:rgba(143,124,255,.13); --aur3:rgba(62,200,192,.10);
}
body.light{
  /* Registre CLAIR (salle éclairée, touche L) */
  --bg:#f6f7f5; --bg2:#edf1ef; --panel:#ffffff; --panel2:#f7faf9;
  --line:rgba(13,16,20,.10); --line2:rgba(13,16,20,.19);
  --tx1:#12181a; --tx2:#3d4a49; --tx3:#687575;
  --accent:#12877f; --accent2:#1ea7a0; --accent3:#5f4ad0; --warm:#c9691c;
  --ok:#17804f; --err:#c43d2d;
  --glow:0 0 0 1px rgba(30,167,160,.35),0 10px 30px -10px rgba(30,167,160,.35);
  --card-sh:0 18px 44px -18px rgba(18,24,26,.22),0 1px 3px rgba(18,24,26,.06);
  --grid-ln:rgba(30,167,160,.06);
  --aur1:rgba(30,167,160,.13); --aur2:rgba(106,85,216,.07); --aur3:rgba(62,200,192,.08);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg);color:var(--tx1);font-family:var(--f-body);overflow:hidden;
  -webkit-font-smoothing:antialiased;transition:background .4s ease,color .4s ease;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:color-mix(in srgb,var(--accent) 30%,transparent)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ─────────── Décor : aurore, grille, grain, particules ─────────── */
#aurora{position:fixed;inset:-20%;z-index:0;pointer-events:none;overflow:hidden}
#aurora i{position:absolute;border-radius:50%;filter:blur(80px);will-change:transform}
#aurora i:nth-child(1){width:55vw;height:55vw;left:5%;top:0;background:var(--aur1);animation:aur1 30s ease-in-out infinite alternate}
#aurora i:nth-child(2){width:45vw;height:45vw;right:0;top:25%;background:var(--aur2);animation:aur2 36s ease-in-out infinite alternate}
#aurora i:nth-child(3){width:40vw;height:40vw;left:30%;bottom:0;background:var(--aur3);animation:aur3 33s ease-in-out infinite alternate}
@keyframes aur1{to{transform:translate(18vw,14vh) scale(1.15)}}
@keyframes aur2{to{transform:translate(-20vw,-10vh) scale(.9)}}
@keyframes aur3{to{transform:translate(-12vw,-18vh) scale(1.2)}}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:linear-gradient(var(--grid-ln) 1px,transparent 1px),linear-gradient(90deg,var(--grid-ln) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 45%,#000 30%,transparent 100%);
          mask-image:radial-gradient(ellipse 80% 70% at 50% 45%,#000 30%,transparent 100%);
}
body::after{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:95;opacity:.03;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}
#bg-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:2;pointer-events:none;transition:opacity 1s ease}
body[data-view="lesson"] #bg-canvas{opacity:0}
#fx-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:70;pointer-events:none}

/* ─────────── Typo & marque ─────────── */
.klogo{font-family:var(--f-body);font-weight:700;letter-spacing:-.045em;line-height:1;color:var(--tx1);display:inline-block;white-space:nowrap}
.klogo i{font-weight:300;font-style:italic;color:var(--accent);padding-right:.05em}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.hl{color:var(--accent);font-weight:500}
.kcur{display:inline-block;width:3px;height:.8em;background:var(--accent);margin-left:5px;vertical-align:-.08em;animation:kblink 1.1s steps(1) infinite;border-radius:2px}
@keyframes kblink{50%{opacity:0}}
.swap{animation:rise .45s var(--ease) backwards}

/* ─────────── Barre supérieure ─────────── */
.topbar{
  position:fixed;top:0;left:0;right:0;height:var(--top);z-index:40;display:flex;align-items:center;gap:14px;padding:0 24px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color .3s;
}
body[data-view="lesson"] .topbar{border-bottom-color:var(--line)}
.topbar .klogo{font-size:24px}
#btn-home{display:flex;align-items:center;gap:14px;border-radius:10px;padding:4px 6px}
.topbar .sep{width:1px;height:20px;background:var(--line2)}
.topbar .ctx{font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--tx3)}
.topbar .spacer{flex:1}
.topbar .tbtn{font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}

/* ─────────── Vues ─────────── */
.view{position:fixed;inset:0;z-index:10;display:none}
body[data-view="home"] #view-home{display:block}
body[data-view="lesson"] #view-lesson{display:block}
#view-lesson{top:var(--top);bottom:var(--bottom);left:0;right:0;overflow:hidden;overflow:clip}

/* ═══════════════════════ ACCUEIL ═══════════════════════ */
#view-home{overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth}
.hero{
  min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:calc(var(--top) + 40px) max(24px,6vw) 70px;max-width:1320px;margin:0 auto;position:relative;
}
.hero .eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:24px}
.hero .eyebrow::before{content:'';width:34px;height:1px;background:var(--accent)}
.hero h1{font-weight:300;letter-spacing:-.035em;line-height:1;font-size:clamp(42px,7.4vw,112px);max-width:14ch}
.hero h1 .ln{display:block;overflow:hidden;padding-bottom:.06em}
.hero h1 .ln > span{display:inline-block;animation:heroLine 1.1s var(--ease) both}
.hero h1 .ln:nth-child(2) > span{animation-delay:.12s}
.hero h1 .ln:nth-child(3) > span{animation-delay:.24s;color:var(--accent);font-weight:400}
@keyframes heroLine{from{transform:translateY(105%);opacity:0}to{transform:none;opacity:1}}
.hero p.lead{margin-top:28px;font-size:clamp(17px,1.5vw,20px);color:var(--tx2);max-width:56ch;font-weight:300;line-height:1.55;animation:fadeUp 1s .45s var(--ease) both}
.hero .row{display:flex;gap:14px;align-items:center;justify-content:flex-start;flex-wrap:wrap;margin-top:32px;animation:fadeUp 1s .6s var(--ease) both}
.hero .privacy{margin-top:26px;font-size:14px;color:var(--tx3);animation:fadeUp 1s .75s var(--ease) both}
.scroll-hint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);font-family:var(--f-mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--tx3);display:flex;flex-direction:column;align-items:center;gap:10px;animation:fadeUp 1s 1.1s both}
.scroll-hint i{width:1px;height:36px;background:linear-gradient(var(--accent),transparent)}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero-stats{display:flex;gap:clamp(20px,4vw,56px);margin-top:44px;flex-wrap:wrap;animation:fadeUp 1s .9s var(--ease) both}
.hero-stats div{display:flex;flex-direction:column;gap:4px}
.hero-stats b{font-family:var(--f-disp);font-style:italic;font-weight:500;font-size:clamp(32px,3.6vw,50px);line-height:1;color:var(--tx1)}
.hero-stats span{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--tx3)}

.acts{max-width:1320px;margin:0 auto;padding:40px max(24px,6vw) 100px;display:flex;flex-direction:column;gap:72px;position:relative;z-index:3}
.act-head{display:flex;align-items:baseline;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.act-head .an{font-family:var(--f-disp);font-style:italic;font-size:clamp(40px,4.6vw,66px);line-height:.9;color:transparent;-webkit-text-stroke:1px var(--accent)}
.act-head h2{font-weight:300;font-size:clamp(24px,2.6vw,36px);letter-spacing:-.02em}
.act-head p{font-size:16px;color:var(--tx2);font-weight:300;flex-basis:100%;max-width:64ch;line-height:1.5}
.lgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.lcard{
  --mx:50%;--my:50%;
  position:relative;text-align:left;border-radius:var(--r);padding:24px 24px 22px;min-height:188px;
  display:flex;flex-direction:column;gap:10px;isolation:isolate;overflow:hidden;
  background:color-mix(in srgb,var(--panel) 82%,transparent);border:1px solid var(--line);
  transition:transform .45s var(--ease),border-color .3s,box-shadow .4s;opacity:0;transform:translateY(24px);
}
.lcard.in{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease),border-color .3s,box-shadow .4s}
.lcard::before{content:'';position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .35s;background:radial-gradient(420px circle at var(--mx) var(--my),color-mix(in srgb,var(--accent) 16%,transparent),transparent 45%)}
.lcard:hover{transform:translateY(-5px);box-shadow:var(--card-sh);border-color:color-mix(in srgb,var(--accent) 60%,transparent)}
.lcard:hover::before{opacity:1}
.lcard .num{font-family:var(--f-disp);font-style:italic;font-weight:500;font-size:48px;line-height:.8;color:transparent;-webkit-text-stroke:1px color-mix(in srgb,var(--accent) 75%,transparent);transition:color .4s}
.lcard:hover .num{color:var(--accent)}
.lcard .new{position:absolute;top:20px;right:20px;font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--bg);background:var(--accent);border-radius:99px;padding:4px 9px}
.lcard h3{font-weight:500;font-size:20px;letter-spacing:-.01em;line-height:1.2;margin-top:8px}
.lcard p{font-size:15px;color:var(--tx2);font-weight:300;line-height:1.45}
.lcard .go{margin-top:auto;padding-top:8px;font-size:13px;color:var(--tx3);transition:color .3s}
.lcard:hover .go{color:var(--accent)}
.foot{max-width:1320px;margin:0 auto;padding:0 max(24px,6vw) 60px;font-size:14px;color:var(--tx3);line-height:1.7;position:relative;z-index:3}

/* ═══════════════════════ LEÇON : scène ═══════════════════════ */
.tableau{
  position:absolute;inset:0;padding:20px 32px 28px;overflow-x:hidden;overflow-y:auto;
  display:flex;flex-direction:column;align-items:center;gap:20px;
  visibility:hidden;opacity:0;pointer-events:none;
}
.tableau > :first-child{margin-top:auto}
.tableau > :last-child{margin-bottom:auto}
.tableau > *{flex-shrink:0;max-width:100%}
.tableau.live{visibility:visible;opacity:1;pointer-events:auto;z-index:2;animation:tbIn .6s var(--ease) both}
.tableau.out{visibility:visible;z-index:1;animation:tbOut .4s ease both;pointer-events:none}
@keyframes tbIn{from{opacity:0;transform:translateX(var(--sx,0));filter:blur(8px)}to{opacity:1;transform:none;filter:none}}
@keyframes tbOut{from{opacity:1}to{opacity:0;transform:translateX(calc(var(--sx,0px) * -1));filter:blur(6px)}}
.t-eyebrow{opacity:0}
.live .t-eyebrow{animation:rise .6s .05s var(--ease) forwards}
.t-title{font-weight:300;letter-spacing:-.02em;line-height:1.08;text-align:center;font-size:clamp(28px,4.2vw,58px);max-width:22ch;opacity:0}
.live .t-title{animation:titleIn .9s .1s var(--ease) forwards}
@keyframes titleIn{from{opacity:0;transform:translateY(18px);filter:blur(10px)}to{opacity:1;transform:none;filter:none}}
.t-title b{font-weight:500;color:var(--accent)}
.t-sub{font-size:clamp(16px,1.5vw,19px);font-weight:300;color:var(--tx2);text-align:center;max-width:62ch;line-height:1.5;opacity:0}
.live .t-sub{animation:rise .8s .25s var(--ease) forwards}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.tableau.live > :where(:not(.t-eyebrow):not(.t-title):not(.t-sub)){animation:sc-rise .7s var(--ease) both}
.tableau.live > :where(*):nth-child(4){animation-delay:.34s}
.tableau.live > :where(*):nth-child(5){animation-delay:.42s}
.tableau.live > :where(*):nth-child(n+6){animation-delay:.5s}
@keyframes sc-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(.8);opacity:0}70%{transform:scale(1.03)}100%{transform:scale(1);opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-8px)}40%{transform:translateX(7px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}

/* ─────────── Composants communs ─────────── */
.glass{
  background:linear-gradient(160deg,color-mix(in srgb,var(--panel2) 94%,transparent),color-mix(in srgb,var(--panel) 92%,transparent));
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--card-sh);position:relative;
}
/* Boutons : le texte peut passer à la ligne, il n'est jamais coupé. */
.cta,.qbtn,.tbtn{white-space:normal;line-height:1.25;text-align:center;overflow-wrap:anywhere;max-width:100%}
.cta{
  position:relative;overflow:hidden;isolation:isolate;
  font-size:17px;font-weight:500;padding:14px 32px;border-radius:28px;color:#fff;
  background:linear-gradient(120deg,var(--teal2),var(--teal) 50%,#2fb6b8);
  box-shadow:0 10px 30px -12px rgba(30,167,160,.8),inset 0 1px 0 rgba(255,255,255,.22);
  transition:transform .25s var(--ease),box-shadow .25s,background .2s,color .2s;
}
.cta::after{content:'';position:absolute;top:0;bottom:0;left:-60%;width:40%;z-index:-1;background:linear-gradient(100deg,transparent,rgba(255,255,255,.3),transparent);transform:skewX(-20deg);transition:left .7s var(--ease)}
.cta:hover{transform:translateY(-2px)}
.cta:hover::after{left:130%}
.cta:active{transform:scale(.98)}
.cta:disabled{cursor:default;transform:none;background:var(--panel2);color:var(--tx3);box-shadow:inset 0 0 0 1px var(--line2)}
.cta:disabled::after{display:none}
.cta.ghost{background:transparent;color:var(--accent);box-shadow:inset 0 0 0 1.5px var(--accent)}
.cta.sm{font-size:15px;padding:11px 24px}
.ripple{position:absolute;border-radius:50%;transform:scale(0);background:rgba(255,255,255,.4);animation:ripple .6s ease-out forwards;pointer-events:none;z-index:-1}
@keyframes ripple{to{transform:scale(4);opacity:0}}
.qbtns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.qbtn{
  font-size:17px;font-weight:500;padding:12px 26px;border-radius:24px;position:relative;overflow:hidden;
  border:1.5px solid var(--line2);color:var(--tx1);background:color-mix(in srgb,var(--panel) 85%,transparent);
  transition:border-color .25s,color .25s,background .25s,box-shadow .25s,transform .25s var(--ease);
}
.qbtn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.qbtn.on{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--panel));box-shadow:var(--glow)}
.qbtn:disabled{opacity:.55;cursor:default;transform:none}
.qbtn.small{font-size:15px;padding:10px 18px}
.tbtn{
  font-size:14px;color:var(--tx2);border:1px solid var(--line2);border-radius:20px;padding:9px 16px;
  background:color-mix(in srgb,var(--panel) 80%,transparent);transition:border-color .2s,color .2s,background .2s;
}
.tbtn:hover{border-color:var(--accent);color:var(--accent)}
.tbtn:disabled{opacity:.5;cursor:default}
.tbtn:disabled:hover{border-color:var(--line2);color:var(--tx2)}
.tbtn kbd{font-family:inherit;color:var(--accent);margin-right:6px}
.tbtn.on{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}
.pips{display:flex;gap:6px}
.pips i{width:24px;height:4px;border-radius:4px;background:var(--line2);transition:background .4s}
.pips i.on{background:var(--accent)}
.pips i.ok{background:var(--ok)}
.pips i.ko{background:var(--err)}
.verdict{min-height:24px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;max-width:62ch}
.verdict .v{font-size:17px;font-weight:500;animation:pop .4s var(--ease) both}
.verdict .v.good{color:var(--ok)}
.verdict .v.bad{color:var(--err)}
.verdict .v.neutral{color:var(--accent)}
.verdict .why{font-size:16.5px;font-weight:300;color:var(--tx2);line-height:1.5;animation:rise .5s .1s both}
.final{display:none;flex-direction:column;align-items:center;gap:16px;text-align:center;animation:pop .6s var(--ease) both}
.final .big{font-size:clamp(20px,2.4vw,30px);font-weight:300;max-width:34ch;line-height:1.35}
.final p{font-size:17px;color:var(--tx2);font-weight:300;max-width:60ch;line-height:1.5}
.score-ring{width:110px;height:110px;position:relative}
.score-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.score-ring circle{fill:none;stroke-width:6}
.score-ring .bg{stroke:var(--line2)}
.score-ring .fg{stroke:url(#gradRing);stroke-linecap:round;stroke-dasharray:327;stroke-dashoffset:327;transition:stroke-dashoffset 1.4s var(--ease)}
.score-ring span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:var(--f-disp);font-style:italic;font-size:36px}
.hint{font-size:16.5px;font-weight:300;color:var(--tx2);text-align:center;min-height:25px;max-width:62ch;line-height:1.5}
.hint b{color:var(--tx1);font-weight:500}
.stepcap{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);text-align:center;min-height:16px}
.mock-note{font-size:13.5px;color:var(--tx3);text-align:center;max-width:74ch;line-height:1.5;font-weight:300}
.mock-note b{color:var(--tx2);font-weight:500}
.teaser{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line2);border-radius:16px;padding:11px 20px;background:color-mix(in srgb,var(--panel) 85%,transparent);font-size:15.5px;color:var(--tx2);text-align:center;line-height:1.45;max-width:min(760px,100%)}
.teaser b{color:var(--tx1);font-weight:500}
.row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;align-items:center}
.col{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%}
/* « À retenir » : une liste sobre, qui apparaît ligne par ligne. */
.recap{list-style:none;display:flex;flex-direction:column;gap:12px;width:min(760px,100%);padding:26px 30px;counter-reset:rc}
.recap li{position:relative;padding-left:40px;font-size:clamp(17px,1.6vw,20px);font-weight:300;line-height:1.5;opacity:0;transform:translateY(8px);transition:opacity .5s,transform .5s var(--ease)}
.recap li::before{counter-increment:rc;content:counter(rc);position:absolute;left:0;top:.1em;width:26px;height:26px;border-radius:50%;border:1px solid var(--accent);color:var(--accent);font-family:var(--f-mono);font-size:12px;display:flex;align-items:center;justify-content:center}
.recap li.in{opacity:1;transform:none}

/* Barres de probabilité (partagées) */
.board{width:min(600px,100%);padding:18px 22px;display:flex;flex-direction:column;gap:10px}
.bar-row{display:grid;grid-template-columns:minmax(80px,auto) 1fr 58px;align-items:center;gap:12px;border-radius:10px;padding:2px 4px;transition:background .3s}
.bar-w{font-size:17px;text-align:right;font-family:var(--f-mono);transition:color .3s}
.bar-track{display:block;height:16px;background:color-mix(in srgb,var(--bg) 60%,transparent);border:1px solid var(--line);border-radius:99px;overflow:hidden}
.bar-fill{display:block;height:100%;width:0;border-radius:99px;background:var(--tx3);transition:width 1s var(--ease)}
.bar-pct{font-family:var(--f-mono);font-size:13px;color:var(--tx3);opacity:0;transition:opacity .4s .5s}
.board.revealed .bar-pct{opacity:1}
.bar-row.win .bar-fill{background:linear-gradient(90deg,var(--teal2),var(--accent))}
.bar-row.win .bar-w{color:var(--accent);font-weight:500}
.board.revealed .bar-row.win.pick{cursor:pointer;background:color-mix(in srgb,var(--accent) 8%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 50%,transparent)}
.board.revealed .bar-row.win.pick:hover{background:color-mix(in srgb,var(--accent) 16%,transparent)}
.bar-row.truth .bar-w{color:var(--ok)}
.bar-row.truth .bar-fill{background:var(--ok)}
.meter{width:min(440px,100%);display:flex;flex-direction:column;gap:8px}
.meter .el{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--tx3)}
.meter .el b{font-family:var(--f-mono);font-weight:500;color:var(--err)}
.meter.okm .el b{color:var(--ok)}
.meter-track{display:block;height:12px;border:1px solid var(--line);border-radius:99px;background:color-mix(in srgb,var(--bg) 60%,transparent);overflow:hidden}
.meter-fill{display:block;height:100%;width:0;border-radius:99px;background:var(--err);transition:width 1s var(--ease)}
.meter.okm .meter-fill{background:var(--ok)}
.knobs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;max-width:520px}
.knob{width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line2);position:relative;background:radial-gradient(circle at 35% 30%,var(--panel2),var(--panel))}
.knob i{position:absolute;left:50%;top:3px;width:2px;height:8px;margin-left:-1px;background:var(--accent);border-radius:2px;transform-origin:50% 10px;transition:transform .9s var(--ease);display:block}
.knobs.spin .knob{animation:knobGlow .9s ease}
@keyframes knobGlow{50%{border-color:var(--accent)}}
.knob.big{width:66px;height:66px}
.knob.big i{width:3px;height:24px;top:5px;margin-left:-1.5px;transform-origin:50% 28px;transition:transform .4s var(--ease)}
.slider{-webkit-appearance:none;appearance:none;width:min(560px,100%);height:32px;background:transparent;cursor:pointer}
.slider::-webkit-slider-runnable-track{height:6px;border-radius:99px;background:linear-gradient(90deg,var(--accent) 0,var(--accent) var(--p,0%),var(--line2) var(--p,0%))}
.slider::-moz-range-track{height:6px;border-radius:99px;background:var(--line2)}
.slider::-moz-range-progress{height:6px;border-radius:99px;background:var(--accent)}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;border-radius:50%;margin-top:-10px;background:#fff;border:3px solid var(--accent);box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 20%,transparent)}
.slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid var(--accent)}
.scale{display:flex;justify-content:space-between;gap:10px;width:min(560px,100%);font-size:13px;color:var(--tx3)}
.stamp{display:inline-block;padding:7px 18px;border:3px solid var(--err);color:var(--err);font-family:var(--f-mono);font-size:15px;letter-spacing:.2em;text-transform:uppercase;border-radius:8px;transform:rotate(-6deg) scale(0);opacity:0}
.stamp.on{animation:stampIn .5s cubic-bezier(.2,1.3,.4,1) forwards}
@keyframes stampIn{0%{transform:rotate(-6deg) scale(2.2);opacity:0}55%{opacity:1}100%{transform:rotate(-6deg) scale(1);opacity:1}}
.fly{position:fixed;z-index:75;pointer-events:none;transition:transform .7s var(--ease),opacity .7s ease;will-change:transform}

/* Cartes à retourner */
.flips{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;max-width:1000px;perspective:1400px}
.flip{width:min(290px,100%);display:grid;cursor:pointer;transform-style:preserve-3d;transition:transform .8s var(--ease);text-align:left}
.flip > *{grid-area:1/1;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:var(--r);padding:20px 22px;display:flex;flex-direction:column;gap:10px;min-height:150px}
.flip .front{background:color-mix(in srgb,var(--panel) 92%,transparent);border:1px solid var(--line2);box-shadow:var(--card-sh);transition:border-color .3s}
.flip:hover .front{border-color:var(--accent)}
.flip .back{transform:rotateY(180deg);background:color-mix(in srgb,var(--accent) 10%,var(--panel));border:1px solid color-mix(in srgb,var(--accent) 60%,transparent)}
.flip.done{transform:rotateY(180deg);cursor:default}
.flip .mq{font-size:17px;line-height:1.4}
.flip .tap{margin-top:auto;font-size:13.5px;color:var(--tx3)}
.flip .tap::before{content:'Retourner · ';color:var(--accent)}
.flip .mr{font-size:15.5px;font-weight:300;line-height:1.5}
.flip .bk{font-size:13px;color:var(--accent)}

.rl-card{
  background:color-mix(in srgb,var(--panel) 92%,transparent);border:1px solid var(--line2);border-radius:var(--r);box-shadow:var(--card-sh);
  padding:18px 22px;width:min(320px,100%);display:flex;flex-direction:column;gap:8px;text-align:left;transition:transform .25s var(--ease),border-color .25s,opacity .3s;cursor:pointer;
}
.rl-card:hover{transform:translateY(-3px);border-color:var(--accent)}
.rl-card .rk{font-size:13px;color:var(--tx3)}
.rl-card .rt{font-size:17px;line-height:1.4}
.rl-card.good{border-color:var(--ok);box-shadow:0 0 0 1px var(--ok)}
.rl-card.good .rk{color:var(--ok)}
.rl-card.bad{opacity:.5}
.rl-card.frozen{cursor:default}
.rl-card.frozen:hover{transform:none}

/* ═══════════════ Rail de navigation ═══════════════ */
.rail{position:fixed;left:0;right:0;bottom:0;height:var(--bottom);z-index:40;display:none;align-items:center;gap:16px;padding:0 24px;
  background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
body[data-view="lesson"] .rail{display:flex}
.rail .lbl{flex:1 1 0;min-width:0;font-size:13px;color:var(--tx3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail .dots{display:flex;gap:8px;flex:0 0 auto}
.rail .dots button{width:9px;height:9px;border-radius:99px;background:var(--line2);padding:0;transition:all .35s var(--ease)}
.rail .dots button.seen{background:color-mix(in srgb,var(--accent) 45%,var(--line2))}
.rail .dots button.on{background:var(--accent);width:26px}
.rail .navs{flex:1 1 0;display:flex;justify-content:flex-end;gap:10px}
.navb{width:46px;height:46px;border-radius:50%;border:1px solid var(--line2);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--tx2);
  transition:all .25s var(--ease);background:color-mix(in srgb,var(--panel) 80%,transparent)}
.navb:hover{border-color:var(--accent);color:var(--accent)}
.navb:disabled{opacity:.35;cursor:default}
#nav-next.pulse{border-color:var(--accent);color:var(--accent)}
#stage-prog{position:fixed;top:var(--top);left:0;right:0;height:2px;z-index:41;opacity:0;transition:opacity .4s;pointer-events:none}
body[data-view="lesson"] #stage-prog{opacity:1}
#stage-prog i{display:block;height:100%;width:0;background:var(--accent);transition:width .6s var(--ease)}

/* Interstitiel de leçon */
#lesson-inter{position:fixed;inset:0;z-index:80;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;opacity:0;pointer-events:none;visibility:hidden;overflow:hidden}
#lesson-inter.show{visibility:visible;pointer-events:auto;cursor:pointer;animation:li-cycle 2.2s ease forwards}
@keyframes li-cycle{0%{opacity:0}12%{opacity:1}80%{opacity:1}100%{opacity:0;visibility:hidden}}
#lesson-inter .li-num{font-family:var(--f-disp);font-style:italic;font-weight:500;font-size:clamp(140px,26vw,340px);line-height:.8;color:transparent;-webkit-text-stroke:1.5px var(--accent);position:absolute;opacity:.16}
#lesson-inter .li-eyebrow{font-family:var(--f-mono);font-size:13px;letter-spacing:.3em;text-transform:uppercase;color:var(--accent);position:relative;animation:rise .7s .2s both}
#lesson-inter .li-title{font-family:var(--f-disp);font-style:italic;font-weight:500;font-size:clamp(38px,6vw,86px);text-align:center;max-width:18ch;padding:0 5vw;position:relative;line-height:1.05;animation:titleIn 1s .3s var(--ease) both}

/* Aide */
#help{position:fixed;inset:0;z-index:85;display:none;align-items:center;justify-content:center;background:color-mix(in srgb,var(--bg) 70%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:16px}
#help.on{display:flex}
#help .box{padding:30px 36px;display:flex;flex-direction:column;gap:14px;max-width:100%}
#help h4{font-family:var(--f-disp);font-style:italic;font-weight:500;font-size:32px}
#help .hr{display:flex;align-items:center;gap:16px;font-size:15px;color:var(--tx2)}
#help kbd{font-family:var(--f-mono);font-size:12px;border:1px solid var(--line2);border-radius:6px;padding:4px 10px;color:var(--accent);min-width:58px;text-align:center;flex:0 0 auto}

/* ═══════════════ L1 · La carte de l'IA ═══════════════ */
.qcard{padding:28px 44px;display:flex;flex-direction:column;align-items:center;gap:12px;width:min(460px,100%);transition:border-color .3s,box-shadow .3s}
.qcard.enter{animation:pop .5s var(--ease) both}
.qcard .emo{font-size:clamp(56px,8vh,92px);line-height:1}
.qcard .qname{font-size:clamp(20px,2.4vw,28px);font-weight:500;text-align:center}
.qcard.right{border-color:var(--ok);box-shadow:0 0 0 1px var(--ok)}
.qcard.wrong{border-color:var(--err);animation:shake .45s ease}

.map-wrap{display:flex;align-items:center;justify-content:center;gap:min(4vw,56px);flex-wrap:wrap;width:100%}
.rings svg{display:block;width:min(44vw,500px,58vh);height:auto;overflow:visible}
.ring{fill:none;stroke:var(--line2);stroke-width:1.5;transition:stroke .3s,stroke-width .3s;cursor:pointer}
.ring-hit{fill:transparent;cursor:pointer}
.ring-fill{fill:var(--accent);opacity:0;transition:opacity .4s;pointer-events:none}
.ring-lbl{font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;fill:var(--tx2);cursor:pointer;transition:fill .3s}
.orbit{transform-box:view-box;transform-origin:260px 260px;animation:orbit linear infinite}
.orbit circle{fill:var(--accent)}
@keyframes orbit{to{transform:rotate(360deg)}}
g.rg:hover .ring,g.rg.on .ring{stroke:var(--accent);stroke-width:2.5}
g.rg:hover .ring-lbl,g.rg.on .ring-lbl{fill:var(--accent)}
g.rg.on .ring-fill{opacity:.07}
.ring-core{fill:url(#coreGrad);cursor:pointer}
.live .ring{stroke-dasharray:1600;stroke-dashoffset:1600;animation:draw 1.6s var(--ease) forwards}
.live .r2 .ring{animation-delay:.2s}.live .r3 .ring{animation-delay:.4s}.live .r4 .ring{animation-delay:.6s}.live .r5 .ring{animation-delay:.8s}
@keyframes draw{to{stroke-dashoffset:0}}
.map-panel{flex:0 1 380px;min-width:min(280px,100%);padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.map-panel .pk{font-size:13px;color:var(--accent)}
.map-panel h4{font-size:22px;font-weight:500;line-height:1.25}
.map-panel .pd{font-size:16px;font-weight:300;color:var(--tx2);line-height:1.5}
.map-panel ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.map-panel li{font-size:15px;color:var(--tx2);padding-left:14px;position:relative;line-height:1.4}
.map-panel li::before{content:'';position:absolute;left:0;top:.6em;width:5px;height:5px;border-radius:50%;background:var(--accent)}

.sort-stage{display:flex;flex-direction:column;align-items:center;gap:20px;width:100%;max-width:960px}
.sort-item{padding:16px 30px;display:flex;align-items:center;gap:16px;max-width:100%}
.sort-item.enter{animation:pop .5s var(--ease) both}
.sort-item .e{font-size:38px;line-height:1}
.sort-item .n{font-size:clamp(18px,2vw,24px)}
.sort-zones{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;width:100%}
.zone{border:1.5px dashed var(--line2);border-radius:var(--r);padding:16px 22px;width:min(220px,100%);display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .3s var(--ease);background:color-mix(in srgb,var(--panel) 60%,transparent)}
.zone .zi{font-size:24px}
.zone:hover{border-color:var(--accent)}
.zone .zt{font-size:17px;font-weight:500}
.zone .zs{font-size:13.5px;color:var(--tx3);text-align:center}
.zone.good{border-color:var(--ok);border-style:solid;background:color-mix(in srgb,var(--ok) 12%,var(--panel))}
.zone.bad{border-color:var(--err);border-style:solid;animation:shake .4s}
.sort-zones.locked .zone{cursor:default}

.zoom-wrap{position:relative;display:flex;flex-direction:column;align-items:center;width:100%;overflow:hidden;padding:10px 0}
.zoom-rings{position:relative;width:min(36vw,340px,40vh);aspect-ratio:1;transition:width 1.6s var(--ease)}
.zoom-wrap.zoomed .zoom-rings{width:min(24vw,220px,28vh)}
.zr{position:absolute;border:1.5px solid var(--line2);border-radius:50%;inset:0;transition:all 1.6s cubic-bezier(.7,0,.2,1)}
.zr2{inset:11%}.zr3{inset:22%}.zr4{inset:33%}
.zr5{inset:44%;border-color:var(--accent);background:radial-gradient(circle,color-mix(in srgb,var(--accent) 35%,transparent),color-mix(in srgb,var(--accent) 8%,transparent));display:flex;align-items:center;justify-content:center}
.zr5 span{font-family:var(--f-mono);font-size:13px;letter-spacing:.2em;color:var(--tx1);transition:font-size 1.6s var(--ease)}
.zoom-wrap.zoomed .zr1{inset:-300%;opacity:0}
.zoom-wrap.zoomed .zr2{inset:-220%;opacity:0}
.zoom-wrap.zoomed .zr3{inset:-140%;opacity:.1}
.zoom-wrap.zoomed .zr4{inset:-60%;opacity:.3}
.zoom-wrap.zoomed .zr5{inset:4%}
.zoom-wrap.zoomed .zr5 span{font-size:clamp(18px,2.4vw,28px)}
.next-list{display:none;flex-wrap:wrap;gap:8px;justify-content:center;max-width:900px}
.next-list.show{display:flex}
.chip{font-size:14px;color:var(--tx2);border:1px solid var(--line2);border-radius:14px;padding:6px 13px;background:color-mix(in srgb,var(--panel) 85%,transparent);opacity:0;animation:pop .5s var(--ease) forwards}
.chip b{color:var(--accent);font-weight:500;margin-right:6px}

/* ═══════════════ L2 · Le mot suivant ═══════════════ */
.rev-card{padding:34px 48px;text-align:center;width:min(680px,100%);cursor:pointer}
.rev-card.enter{animation:pop .5s var(--ease) both}
.rev-start{font-size:clamp(24px,3.2vw,40px);font-weight:300;line-height:1.3}
.rev-end{display:inline-block;font-weight:500;opacity:0;transform:translateY(12px);transition:all .6s var(--ease)}
.rev-card.shown .rev-end{opacity:1;transform:none;color:var(--accent)}
.pred-wrap{display:flex;flex-direction:column;align-items:center;gap:18px;width:100%;max-width:880px}
.pred-sentence{font-size:clamp(21px,2.6vw,32px);font-weight:300;text-align:center;line-height:1.35;min-height:1.4em;max-width:32ch}
.pred-sentence .w{display:inline-block}
.pred-sentence .w.new{color:var(--accent);font-weight:500;animation:pop .45s var(--ease) both}
.caret{display:inline-block;width:3px;height:1em;background:var(--accent);vertical-align:-.12em;margin-left:6px;animation:blink 1s steps(1) infinite;border-radius:2px}
@keyframes blink{50%{opacity:0}}
/* Boucle d'écriture : le texte entre dans le modèle, un mot en sort et rejoint le texte. */
.flow{display:flex;flex-direction:column;align-items:center;gap:8px;width:min(720px,100%)}
.flow-text{width:100%;padding:16px 22px;font-size:clamp(19px,2.2vw,28px);font-weight:300;text-align:center;line-height:1.4;min-height:2.2em}
.flow-text .w{display:inline-block;animation:pop .4s var(--ease) both}
.flow-text .w.hot{color:var(--accent);font-weight:500}
.flow-arrows{display:flex;justify-content:center;gap:clamp(24px,8vw,120px);font-size:14px;color:var(--tx3);text-align:center}
.flow-arrows span{display:flex;flex-direction:column;align-items:center;gap:2px;transition:color .3s}
.flow-arrows span::before{font-size:20px;line-height:1}
.flow-arrows .down::before{content:'↓'}
.flow-arrows .up::before{content:'↑'}
.flow-arrows span.on{color:var(--accent)}
.machine{width:min(360px,100%);padding:14px 20px;display:flex;flex-direction:column;gap:7px;transition:box-shadow .3s,border-color .3s}
.machine.on{border-color:var(--accent);box-shadow:var(--glow)}
.machine .mt{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--tx3)}
.machine .mt b{color:var(--accent);font-weight:500}
.mbar{display:grid;grid-template-columns:96px 1fr 44px;gap:10px;align-items:center;font-family:var(--f-mono);font-size:13.5px;color:var(--tx2)}
.mbar span:first-child{text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mbar span:last-child{color:var(--tx3);font-size:12px}
.mbar i{display:block;height:8px;border-radius:9px;background:var(--tx3);width:0;transition:width .5s ease}
.mbar.top i{background:var(--accent)}
.mbar.top span:first-child{color:var(--accent)}

/* ═══════════════ L3 · Des mots aux nombres ═══════════════ */
.hchips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;max-width:920px}
.hchip{font-size:15px;color:var(--tx2);border:1px solid var(--line2);border-radius:18px;padding:8px 16px;background:color-mix(in srgb,var(--panel) 80%,transparent);transition:all .25s;line-height:1.3}
.hchip:hover{border-color:var(--accent);color:var(--tx1)}
.hchip.on{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--panel))}
.hach-out{position:relative;display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-start;min-height:96px;max-width:940px;padding:8px 0}
.tk{display:flex;flex-direction:column;align-items:center;gap:6px;transition:margin .6s var(--ease)}
.tk .t{font-size:clamp(20px,2.4vw,30px);padding:8px 0;border-radius:10px;border:1px solid transparent;white-space:pre;transition:all .6s var(--ease)}
.tk .id{font-family:var(--f-mono);font-size:12.5px;color:var(--tx3);opacity:0;transform:translateY(-6px);transition:all .5s var(--ease);min-height:1.2em}
/* Espace rendu en « ␣ » dessiné en CSS : aucun glyphe spécial requis. */
.sp{display:inline-block;width:.42em;height:.28em;border:1.5px solid currentColor;border-top:none;margin:0 .06em;vertical-align:baseline;opacity:0;transition:opacity .4s;color:var(--accent)}
.hach-out.cut .tk{margin:0 5px 10px}
.hach-out.cut .tk .t{padding:8px 12px;background:color-mix(in srgb,var(--h,var(--accent)) 16%,var(--panel));border-color:color-mix(in srgb,var(--h,var(--accent)) 55%,transparent)}
.hach-out.cut .sp{opacity:.9}
.hach-out.num .tk .id{opacity:1;transform:none}
.laser{position:absolute;top:0;bottom:0;width:2px;left:0;background:linear-gradient(transparent,var(--accent),transparent);box-shadow:0 0 14px 2px var(--accent);opacity:0;pointer-events:none}
.laser.go{animation:laser 1.2s ease-in-out forwards}
@keyframes laser{0%{left:0;opacity:0}10%{opacity:1}90%{opacity:1}100%{left:100%;opacity:0}}
.hach-count{font-size:15px;color:var(--accent);min-height:20px}

.numrow{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.numcard{padding:18px 30px;display:flex;flex-direction:column;align-items:center;gap:8px}
.numcard .w{font-size:clamp(22px,2.6vw,32px);font-weight:500}
.numcard .a{color:var(--tx3)}
.numcard .n{font-family:var(--f-mono);font-size:clamp(19px,2.2vw,26px);color:var(--accent)}
.numline{width:min(820px,100%);display:none}
.numline.show{display:block}
.numline svg{width:100%;height:auto;display:block;overflow:visible}
.nl-axis{stroke:var(--line2);stroke-width:2}
.nl-tick{font-family:var(--f-mono);font-size:12px;fill:var(--tx3)}
.nl-dot{fill:var(--accent)}
.nl-lbl{font-family:var(--f-body);font-size:19px;font-weight:500;fill:var(--tx1)}
.nl-num{font-family:var(--f-mono);font-size:12px;fill:var(--accent)}
.nl-pin{transition:transform 1.4s var(--ease)}

.galaxy-wrap{display:flex;align-items:stretch;justify-content:center;gap:20px;flex-wrap:wrap;width:100%}
.galaxy{position:relative;flex:1 1 520px;max-width:820px;height:min(52vh,520px);min-height:300px;border-radius:var(--r);overflow:hidden;cursor:grab;touch-action:none;
  background:radial-gradient(ellipse at 50% 50%,color-mix(in srgb,var(--accent) 6%,transparent),transparent 70%),color-mix(in srgb,var(--panel) 55%,transparent);border:1px solid var(--line)}
.galaxy:active{cursor:grabbing}
.galaxy canvas{width:100%;height:100%;display:block}
.galaxy .gctl{position:absolute;left:10px;bottom:10px;display:flex;gap:6px}
.galaxy .gctl .tbtn{padding:6px 12px;font-size:13px}
.side-panel{flex:0 1 320px;min-width:min(280px,100%);padding:20px 22px;display:flex;flex-direction:column;gap:12px}
.side-panel .pk{font-size:13px;color:var(--tx3)}
.side-panel h4{font-size:24px;font-weight:500;color:var(--accent)}
.side-panel p{font-size:15px;font-weight:300;color:var(--tx2);line-height:1.5}
.nb-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.nb-list li{display:grid;grid-template-columns:minmax(90px,auto) 1fr;gap:12px;align-items:center;font-size:17px}
.nb-list .pb{display:block;height:8px;background:color-mix(in srgb,var(--bg) 60%,transparent);border:1px solid var(--line);border-radius:99px;overflow:hidden}
.nb-list .pb i{display:block;height:100%;width:0;background:var(--accent);border-radius:99px;transition:width .8s var(--ease)}
.try{display:flex;gap:6px;flex-wrap:wrap}
.try button{font-size:14px;color:var(--tx2);border:1px solid var(--line2);border-radius:14px;padding:4px 11px;transition:all .2s}
.try button:hover{border-color:var(--accent);color:var(--accent)}

.vec-stage{width:min(760px,100%)}
.vec-stage svg{width:100%;height:auto;display:block;overflow:visible}
.vp{fill:var(--tx3)}
.vp.k{fill:var(--tx1)}
.vt{font-family:var(--f-body);font-size:22px;fill:var(--tx3);font-weight:300}
.vt.k{fill:var(--tx1);font-weight:500}
.vt.hot{fill:var(--accent);font-weight:600}
.varrow{fill:none;stroke:var(--accent);stroke-width:3.5;stroke-linecap:round}
.varrow2{fill:none;stroke:var(--accent3);stroke-width:3;stroke-linecap:round;stroke-dasharray:7 7}
.vlbl{font-family:var(--f-body);font-size:17px;fill:var(--accent)}
.vlbl2{font-family:var(--f-body);font-size:17px;fill:var(--accent3)}
.vgrid line{stroke:var(--line);stroke-width:1}
.va-formula{font-size:clamp(20px,2.6vw,32px);font-weight:300;text-align:center;opacity:0;transform:translateY(10px);transition:opacity .7s,transform .7s var(--ease)}
.va-formula.on{opacity:1;transform:none}
.va-formula b{color:var(--accent);font-weight:500}

.mm-box{position:relative;width:min(560px,100%);height:280px;transition:height .8s var(--ease)}
.mm-tile{position:absolute;left:0;top:0;border-radius:3px;transition:transform 1.1s var(--ease),box-shadow .6s,border-radius .6s;will-change:transform}
.mm-tile canvas{width:100%;height:100%;display:block;border-radius:inherit}
.mm-tile.sep{box-shadow:0 0 0 1.5px var(--accent);border-radius:6px}
.mm-tile em{position:absolute;left:50%;top:100%;transform:translateX(-50%);margin-top:4px;font-style:normal;font-family:var(--f-mono);font-size:10.5px;color:var(--tx3);opacity:0;transition:opacity .5s}
.mm-tile.num em{opacity:1}
.wave{display:flex;align-items:center;gap:0;height:96px;justify-content:center;margin-bottom:20px;max-width:100%}
.wave .seg{display:flex;align-items:center;gap:2px;height:100%;position:relative;padding:0 1px;border-radius:6px;transition:all .8s var(--ease)}
.wave .seg i{display:block;width:4px;border-radius:3px;background:var(--accent)}
.wave.cut{gap:8px}
.wave.cut .seg{box-shadow:0 0 0 1px var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);padding:0 4px}
.wave .seg em{position:absolute;left:50%;top:100%;transform:translateX(-50%);margin-top:5px;font-style:normal;font-family:var(--f-mono);font-size:10.5px;color:var(--tx3);opacity:0;transition:opacity .5s}
.wave.cut .seg em{opacity:1}

/* ═══════════════ L4 · L'attention ═══════════════ */
.av-sent{font-size:clamp(24px,3vw,40px);font-weight:300;text-align:center;min-height:1.4em;line-height:1.3}
.av-sent b{color:var(--accent);font-weight:500}
.av-sent .ctx{border-bottom:2px solid var(--accent2)}
.av-gauge{width:min(580px,100%);display:flex;flex-direction:column;gap:10px}
.av-ends{display:flex;justify-content:space-between;font-size:17px;color:var(--tx2)}
.av-ends span{display:flex;align-items:center;gap:8px;transition:color .3s}
.av-ends span.hot{color:var(--accent);font-weight:500}
.av-ends em{font-style:normal;font-size:26px}
.av-track{position:relative;height:12px;border-radius:99px;border:1px solid var(--line2);background:var(--bg2)}
.av-dot{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:26px;height:26px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 25%,transparent);transition:left 1.2s var(--ease)}
.av-verdict{min-height:52px;font-size:17px;font-weight:300;color:var(--tx2);text-align:center;max-width:56ch;line-height:1.5}

.att-stage{position:relative;width:min(980px,100%);padding-top:150px}
.att-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.att-svg path.beam{fill:none;stroke:url(#beamGrad);stroke-linecap:round;stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:beamIn 1s var(--ease) forwards}
@keyframes beamIn{to{stroke-dashoffset:0}}
.att-row{position:relative;display:flex;flex-wrap:wrap;gap:6px 10px;justify-content:center}
.aw{font-size:clamp(20px,2.5vw,32px);font-weight:300;cursor:pointer;padding:3px 9px;border-radius:10px;transition:all .3s var(--ease);border:1px solid transparent;background:color-mix(in srgb,var(--bg) 72%,transparent)}
.aw:hover{background:color-mix(in srgb,var(--panel) 80%,transparent);border-color:var(--line2)}
.aw.sel{color:var(--accent);font-weight:500;background:color-mix(in srgb,var(--accent) 12%,transparent);border-color:color-mix(in srgb,var(--accent) 50%,transparent)}
.aw.tgt{color:var(--tx1);font-weight:500}
.aw.ant{color:var(--accent);font-weight:500;text-decoration:underline;text-underline-offset:6px}
.aw.static{cursor:default}
#l04-tk-row{gap:4px 6px}
#l04-tk-row .aw{font-size:clamp(17px,1.8vw,25px);padding:3px 6px}
.aw.static:hover{background:none;border-color:transparent}
.layers-wrap{display:flex;align-items:center;justify-content:center;gap:min(5vw,56px);flex-wrap:wrap}
.stack3d{width:260px;height:260px;perspective:900px;position:relative}
.stack3d .st{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(60deg) rotateZ(-40deg)}
.lay{position:absolute;left:40px;top:40px;width:180px;height:180px;border:1px solid color-mix(in srgb,var(--accent) 45%,transparent);border-radius:14px;
  background:color-mix(in srgb,var(--panel) 45%,transparent);display:grid;grid-template-columns:repeat(5,1fr);place-items:center;padding:14px}
.lay i{width:9px;height:9px;border-radius:50%;background:var(--accent);opacity:.18;transition:opacity .8s}
.lay i.on{opacity:1}
.heads{display:grid;grid-template-columns:repeat(4,auto);gap:10px}
.head{display:grid;grid-template-columns:repeat(8,10px);gap:3px;padding:9px;border:1px solid var(--line2);border-radius:12px;background:color-mix(in srgb,var(--panel) 80%,transparent)}
.head i{width:10px;height:10px;border-radius:3px;background:var(--hc,var(--accent));opacity:.07;transition:opacity 1s ease}
.heads-cap{font-size:13.5px;color:var(--tx3);text-align:center;margin-top:8px}

/* ═══════════════ L5 · L'entraînement ═══════════════ */
.nv-out{font-size:clamp(24px,3vw,40px);text-align:center;min-height:1.4em}
.nv-out .g{display:inline-block;color:var(--err);font-family:var(--f-mono);animation:pop .4s both}
.duo2{display:none;gap:16px;flex-wrap:wrap;justify-content:center;align-items:flex-start}
.duo2.show{display:flex;animation:sc-rise .6s both}
.dpanel{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;width:min(300px,100%)}
.dpanel svg{width:100%;height:auto;background:color-mix(in srgb,var(--bg2) 60%,transparent);border-radius:10px}
.dpanel .dt{font-size:15px;font-weight:500;color:var(--tx2)}
.dpanel .dt.g{color:var(--accent)}
.dpanel .dd{font-size:14px;font-weight:300;color:var(--tx3);line-height:1.45}
.bl-line{fill:var(--tx3);opacity:0;animation:bl-in .3s forwards}
@keyframes bl-in{to{opacity:.65}}
.gr-seg{stroke:var(--accent);fill:none;stroke-linecap:round;stroke-dasharray:80;stroke-dashoffset:80;animation:gr-draw .9s cubic-bezier(.3,.6,.3,1) forwards}
@keyframes gr-draw{to{stroke-dashoffset:0}}
.gr-leaf{fill:var(--accent);opacity:0;animation:gr-pop .5s ease forwards}
@keyframes gr-pop{from{opacity:0;transform:scale(0)}to{opacity:.95;transform:scale(1)}}
.lp-iter{font-size:14px;color:var(--tx3)}
.gd-wrap{display:none;flex-direction:column;align-items:center;gap:10px;max-width:60ch;text-align:center;padding:20px 24px;animation:pop .45s var(--ease) both}
.gd-wrap .gt{font-size:15px;font-weight:500;color:var(--accent)}
.gd-wrap .gi{font-size:15.5px;font-weight:300;color:var(--tx2);line-height:1.5}
.gd-err{font-family:var(--f-mono);font-size:20px;color:var(--err);transition:color .3s}

.land-wrap{display:flex;align-items:stretch;justify-content:center;gap:20px;flex-wrap:wrap;width:100%}
.land{position:relative;flex:1 1 520px;max-width:720px;height:min(50vh,460px);min-height:290px;border-radius:var(--r);overflow:hidden;touch-action:none;cursor:grab;
  background:radial-gradient(ellipse at 50% 70%,color-mix(in srgb,var(--accent) 8%,transparent),transparent 70%),color-mix(in srgb,var(--panel) 55%,transparent);border:1px solid var(--line)}
.land canvas{width:100%;height:100%;display:block}
.land .gh{position:absolute;left:12px;bottom:10px;font-size:13px;color:var(--tx3);pointer-events:none}
.land-side{flex:0 1 320px;min-width:min(280px,100%);display:flex;flex-direction:column;gap:10px;padding:20px 22px}
.land-side .big{font-family:var(--f-mono);font-size:32px;color:var(--err);line-height:1;transition:color .4s}
.land-side .big.low{color:var(--ok)}
.land-side .lbl{font-size:14px;color:var(--tx3)}
.land-side p{font-size:15.5px;font-weight:300;color:var(--tx2);line-height:1.5;min-height:4.5em}
.land-side .row{justify-content:flex-start}

.tr-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;width:min(900px,100%)}
.tr-top{display:flex;align-items:center;justify-content:center;gap:min(4vw,44px);flex-wrap:wrap}
.tr-net{width:min(320px,80vw)}
.tr-net svg{width:100%;height:auto;display:block;overflow:visible}
.tr-net line{stroke-linecap:round;transition:stroke .5s,stroke-width .5s,opacity .5s}
.tr-net circle{fill:var(--panel2);stroke:var(--accent);stroke-width:1.5}
.tr-count{display:flex;flex-direction:column;align-items:center;gap:4px}
.tr-count b{font-family:var(--f-mono);font-size:clamp(22px,2.8vw,36px);font-weight:500;color:var(--accent);font-variant-numeric:tabular-nums}
.tr-count span{font-size:14px;color:var(--tx3)}
.tr-prompt{font-size:clamp(19px,2.2vw,26px);font-weight:300;color:var(--tx2);text-align:center}
.tr-out{font-size:clamp(20px,2.6vw,32px);text-align:center;min-height:1.4em;max-width:30ch;transition:color .4s}
.tr-out.junk{font-family:var(--f-mono);color:var(--err)}
.tr-out.mid{color:var(--tx2)}
.tr-out.good{color:var(--tx1)}
.tr-stage{font-size:15px;color:var(--accent);min-height:20px}
.rl-q{font-size:clamp(21px,2.6vw,32px);font-weight:300;text-align:center;line-height:1.35}
.rl-q b{color:var(--accent);font-weight:500}

/* ═══════════════ L6 · La température ═══════════════ */
.wh-wrap{display:flex;align-items:center;justify-content:center;gap:min(4vw,52px);flex-wrap:wrap}
.wh-svg{width:min(40vh,340px,80vw);height:auto;overflow:visible}
.wh-ptr{fill:var(--accent);transform-origin:170px 14px}
.wh-ptr.tick{animation:tick .12s ease}
@keyframes tick{50%{transform:rotate(-16deg)}}
.wh-disc{transition:transform 3.6s cubic-bezier(.12,.8,.2,1)}
.wh-sec{stroke:var(--bg);stroke-width:2.5;transition:filter .4s}
.wh-sec.win{filter:brightness(1.3)}
.wh-lbl{font-family:var(--f-body);font-size:14px;font-weight:500;fill:#fff;pointer-events:none}
.wh-lbl tspan.p{font-size:12px;font-weight:400;opacity:.85}
.wh-hub{fill:var(--bg);stroke:var(--accent);stroke-width:2}
.wh-right{display:flex;flex-direction:column;gap:14px;align-items:center;width:min(380px,100%)}
.wh-res{font-size:clamp(19px,2.2vw,26px);font-weight:300;text-align:center;min-height:1.4em}
.wh-res b{color:var(--accent);font-weight:500}
.histo{display:flex;flex-direction:column;gap:8px;width:100%}
.histo .hr{display:grid;grid-template-columns:92px 1fr 78px;gap:10px;align-items:center;font-size:14px;color:var(--tx2)}
.histo .hr span:first-child{text-align:right}
.histo .ht{position:relative;height:14px;border-radius:99px;background:color-mix(in srgb,var(--bg) 60%,transparent);border:1px solid var(--line)}
.histo .ht i{position:absolute;left:0;top:0;bottom:0;border-radius:99px;background:var(--accent);width:0;transition:width .6s var(--ease)}
.histo .ht s{position:absolute;top:-4px;bottom:-4px;width:2px;background:var(--tx1);opacity:.6;border-radius:2px}
.histo .hn{font-family:var(--f-mono);font-size:12.5px;color:var(--accent)}
.histo-cap{font-size:13.5px;color:var(--tx3);text-align:center;line-height:1.45}
.tm-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;width:min(760px,100%)}
.tm-read{display:flex;align-items:baseline;gap:14px}
.tm-val{font-family:var(--f-mono);font-size:clamp(26px,3vw,40px);color:var(--accent);font-variant-numeric:tabular-nums}
.tm-stage{font-size:15px;color:var(--tx3);min-width:110px}
#l06-tm-slider::-webkit-slider-runnable-track{background:linear-gradient(90deg,#6fb6ff,var(--accent) 55%,var(--warm) 80%,#ff5a3c)}
#l06-tm-slider::-moz-range-track{background:linear-gradient(90deg,#6fb6ff,var(--accent) 55%,var(--warm) 80%,#ff5a3c)}
#l06-tm-slider::-moz-range-progress{background:transparent}
.g3-out{font-size:clamp(20px,2.6vw,32px);text-align:center;min-height:1.4em;max-width:28ch}
.g3-hist{display:flex;flex-direction:column;gap:4px;align-items:center;min-height:100px}
.g3-hist .h{font-size:15px;font-weight:300;color:var(--tx3);animation:rise .35s both}
.g3-count{font-size:14px;color:var(--accent);min-height:18px}

/* ═══════════════ L7 · Les erreurs ═══════════════ */
.hq{font-size:clamp(21px,2.6vw,32px);font-weight:300;text-align:center;min-height:1.3em}
.hq b{color:var(--accent);font-weight:500}
.cl-card{padding:24px 34px;width:min(640px,100%);text-align:center;transition:border-color .3s,box-shadow .3s}
.cl-card.enter{animation:pop .5s var(--ease) both}
.cl-card .ct{font-size:clamp(19px,2.2vw,26px);font-weight:300;line-height:1.4}
.cl-card.right{border-color:var(--ok);box-shadow:0 0 0 1px var(--ok)}
.cl-card.wrong{border-color:var(--err);animation:shake .45s ease}
.tl-stage{width:min(900px,100%)}
.tl-stage svg{width:100%;height:auto;display:block;overflow:visible}
.tl-axis{stroke:var(--line2);stroke-width:2}
.tl-known{fill:url(#knownGrad)}
.tl-fog{fill:url(#fogGrad)}
.tl-cut{stroke:var(--accent);stroke-width:2;stroke-dasharray:4 5}
.tl-t{font-family:var(--f-body);font-size:15px;fill:var(--tx3)}
.tl-t.a{fill:var(--accent)}
.tl-book{fill:var(--accent);opacity:.55}
.tl-q{transition:transform 1s var(--ease),opacity .5s}
.tl-q circle{stroke:var(--bg);stroke-width:3}

/* ═══════════════ L9 · Raisonnement, outils, agents ═══════════════ */
.puzzle{padding:18px 26px;width:min(720px,100%);text-align:center;font-size:clamp(17px,1.9vw,22px);font-weight:300;line-height:1.5}
.lanes{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;align-items:stretch;width:min(960px,100%)}
.lane{flex:1 1 300px;max-width:460px;padding:16px 20px;display:flex;flex-direction:column;gap:10px}
.lane .lh{font-size:14px;color:var(--tx3);display:flex;justify-content:space-between;gap:10px}
.lane .lh b{font-weight:500;color:var(--tx2)}
.lane .ans{font-size:clamp(24px,3vw,38px);font-weight:500;text-align:center;min-height:1.3em;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.lane .ans.bad{color:var(--err)}
.lane .ans.good{color:var(--ok)}
.lane .note{font-size:15px;font-weight:300;color:var(--tx2);text-align:center;min-height:1.4em;line-height:1.45}
.draft{flex:1;font-size:15.5px;line-height:1.6;color:var(--tx2);background:color-mix(in srgb,var(--bg) 50%,transparent);border:1px dashed var(--line2);border-radius:12px;padding:10px 14px;min-height:120px;counter-reset:dl}
.draft div{animation:rise .4s both}
.draft div::before{content:counter(dl) '. ';counter-increment:dl;color:var(--accent);font-family:var(--f-mono);font-size:13px}
.draft .ok{color:var(--ok)}
.tool-stage{display:flex;gap:min(4vw,40px);align-items:center;justify-content:center;flex-wrap:wrap;width:min(960px,100%)}
.chat{flex:1 1 360px;max-width:460px;min-height:260px;padding:16px;display:flex;flex-direction:column;gap:9px}
.bub{max-width:90%;padding:10px 15px;border-radius:16px;font-size:15.5px;line-height:1.45;animation:pop .4s var(--ease) both}
.bub.me{align-self:flex-end;background:var(--teal);color:#fff;border-bottom-right-radius:5px}
.bub.ai{align-self:flex-start;background:color-mix(in srgb,var(--panel2) 92%,transparent);border:1px solid var(--line2);border-bottom-left-radius:5px}
.bub.call{align-self:flex-start;font-family:var(--f-mono);font-size:13.5px;background:color-mix(in srgb,var(--accent3) 14%,var(--panel));border:1px dashed var(--accent3)}
.bub.res{align-self:flex-start;font-family:var(--f-mono);font-size:13.5px;background:color-mix(in srgb,var(--ok) 12%,var(--panel));border:1px dashed var(--ok)}
.bub.think{align-self:flex-start;font-size:14.5px;color:var(--tx3);font-style:italic;background:none;border:1px dashed var(--line2)}
.tools{display:flex;flex-direction:column;gap:12px}
.tool{width:150px;padding:14px;display:flex;flex-direction:column;align-items:center;gap:6px;transition:all .4s var(--ease)}
.tool .ti{font-size:30px}
.tool .tn{font-size:14px;color:var(--tx3)}
.tool.busy{border-color:var(--accent3);box-shadow:0 0 0 1px var(--accent3),0 0 30px -6px var(--accent3);transform:scale(1.05)}
.cycle{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center;font-size:15px;color:var(--tx3)}
.cycle span{padding:7px 14px;border-radius:14px;border:1px solid var(--line2);transition:all .35s}
.cycle span.on{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}
.cycle em{font-style:normal;font-family:var(--f-mono);font-size:13px;color:var(--tx3);margin-left:6px}
.log{width:min(620px,100%);display:flex;flex-direction:column;gap:8px}
.log .st{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;padding:9px 13px;border-radius:12px;border:1px solid var(--line);background:color-mix(in srgb,var(--panel) 88%,transparent);font-size:15px;line-height:1.4;animation:rise .4s var(--ease) both}
.log .st .ic{font-size:17px;text-align:center}
.log .st small{display:block;font-size:12.5px;color:var(--tx3);margin-bottom:2px}
.log .st.act{border-color:color-mix(in srgb,var(--accent3) 55%,transparent)}
.log .st.obs{border-color:color-mix(in srgb,var(--ok) 45%,transparent)}
.log .st.warn{border-color:var(--warm)}
.log .st.warn .qbtns{justify-content:flex-start;margin-top:8px}

/* ═══════════════ L10 · La génération d'images ═══════════════ */
.px-canvas{width:min(38vh,320px,80vw);height:min(38vh,320px,80vw);border:1px solid var(--line2);border-radius:16px;background:var(--panel);box-shadow:var(--card-sh);display:block}
.px-canvas.sm{width:min(24vh,200px,27vw);height:min(24vh,200px,27vw);border-radius:12px}
.px-lbl{font-size:14px;color:var(--tx3);text-align:center}
.px-steps{font-family:var(--f-mono);font-size:13px;color:var(--accent);min-height:18px}
.px-row{display:flex;align-items:center;justify-content:center;gap:min(3vw,36px);flex-wrap:wrap}
.px-side{display:flex;flex-direction:column;align-items:center;gap:12px}
.film{display:flex;gap:6px;justify-content:center;align-items:center;flex-wrap:wrap}
.film canvas{width:52px;height:52px;border-radius:8px;border:1px solid var(--line2);background:var(--panel2)}
.film span{color:var(--tx3);font-size:13px}

/* ═══════════════ L11 · Les contenus falsifiés ═══════════════ */
.call-stage{display:flex;gap:min(5vw,48px);align-items:center;justify-content:center;flex-wrap:wrap}
.phone{--ph:min(460px,58vh);height:var(--ph);width:calc(var(--ph) * .54);border-radius:40px;padding:12px;background:linear-gradient(160deg,#20272e,#0b0f13);box-shadow:0 30px 80px -20px rgba(0,0,0,.8),inset 0 0 0 2px rgba(255,255,255,.08);position:relative;flex:0 0 auto}
.phone .scr{position:absolute;inset:10px;border-radius:30px;overflow:hidden;background:radial-gradient(ellipse at 50% 0%,#1d3a44,#0a1216 70%);display:flex;flex-direction:column;align-items:center;padding:44px 14px 18px;color:#f5f3ef;gap:6px}
.phone .notch{position:absolute;top:16px;left:50%;transform:translateX(-50%);width:84px;height:22px;border-radius:20px;background:#000;z-index:2}
.ph-who{font-size:13px;color:#9fb3ba}
.ph-name{font-size:24px;font-weight:300}
.ph-avatar{width:88px;height:88px;border-radius:50%;margin:16px 0;background:linear-gradient(135deg,#3ec8c0,#8f7cff);display:flex;align-items:center;justify-content:center;font-size:40px;position:relative}
.ph-avatar::before,.ph-avatar::after{content:'';position:absolute;inset:-10px;border-radius:50%;border:2px solid #3ec8c0;opacity:0;animation:ringOut 2s ease-out infinite}
.ph-avatar::after{animation-delay:1s}
.phone.oncall .ph-avatar::before,.phone.oncall .ph-avatar::after{display:none}
@keyframes ringOut{from{transform:scale(.9);opacity:.8}to{transform:scale(1.5);opacity:0}}
.ph-time{font-family:var(--f-mono);font-size:14px;color:#9fb3ba;min-height:18px}
.ph-wave{display:flex;align-items:center;gap:3px;height:50px;opacity:0;transition:opacity .4s}
.phone.oncall .ph-wave{opacity:1}
.ph-wave i{width:4px;height:100%;border-radius:3px;background:#3ec8c0;transform:scaleY(.15);animation:wv2 .9s ease-in-out infinite alternate;animation-play-state:paused}
.phone.talking .ph-wave i{animation-play-state:running}
@keyframes wv2{from{transform:scaleY(.12)}to{transform:scaleY(var(--h,.8))}}
.ph-btns{margin-top:auto;display:flex;gap:44px}
.ph-btns span{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;color:#fff}
.ph-btns .dec{background:#ff5e57}
.ph-btns .acc{background:#2fb87a}
.phone.oncall .ph-btns .acc,.phone.ended .ph-btns{display:none}
.call-side{display:flex;flex-direction:column;gap:12px;width:min(440px,100%)}
.call-feed{display:flex;flex-direction:column;gap:9px;min-height:120px}
.call-b{background:color-mix(in srgb,var(--panel2) 92%,transparent);border:1px solid var(--line2);border-radius:16px 16px 16px 5px;padding:11px 15px;font-size:15.5px;font-weight:300;line-height:1.45;animation:pop .45s var(--ease) both}
.call-b.meta{background:none;border:none;color:var(--tx3);font-size:14px;text-align:center;padding:2px}
.sigs{display:flex;gap:8px;flex-wrap:wrap}
.sig{border:1px dashed var(--line2);border-radius:10px;padding:7px 12px;font-size:14px;color:var(--tx3);opacity:.6;transition:all .4s}
.sig.on{border-style:solid;border-color:var(--err);color:var(--err);opacity:1}
.call-final{display:none;max-width:62ch;text-align:center;font-size:16.5px;font-weight:300;color:var(--tx2);line-height:1.55;animation:rise .5s both}
.an-q{font-size:clamp(19px,2.2vw,26px);font-weight:300;text-align:center;max-width:52ch;line-height:1.4}
.ch-stack{display:flex;flex-direction:column;gap:9px;width:min(580px,100%)}
.ch-btn{text-align:left;font-size:16px;font-weight:300;color:var(--tx2);line-height:1.4;border:1px solid var(--line2);border-radius:14px;padding:12px 16px;background:color-mix(in srgb,var(--panel) 88%,transparent);transition:all .25s var(--ease);animation:rise .4s var(--ease) both}
.ch-btn:hover{border-color:var(--accent);color:var(--tx1)}
.ch-btn.best{border-color:var(--ok);color:var(--tx1);box-shadow:0 0 0 1px var(--ok)}
.ch-btn.nope{opacity:.45}

/* ═══════════════ L12 · Tes usages ═══════════════ */
.rc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,210px));gap:10px;justify-content:center;perspective:1200px;width:100%}
.rc-grid .flip{width:auto}
.rc-grid .flip > *{min-height:104px;padding:12px 14px;gap:6px}
.rc-grid .rn{font-size:12.5px;color:var(--tx3)}
.rc-grid .rt2{font-size:15.5px;font-weight:500;line-height:1.25}
.rc-grid .mr{font-size:14px}
.rc-grid .tap::before{content:'Retourner'}
.zo-stage{width:min(560px,100%);height:min(40vh,340px);overflow:hidden;border-radius:var(--r)}
.zo-stage svg{width:100%;height:100%;transform:scale(5);transform-origin:50% 54%;transition:transform 2.8s cubic-bezier(.6,0,.2,1)}
.zo-stage.out svg{transform:scale(1)}
.zo-ring{fill:none;stroke:var(--line2);stroke-width:1.5}
.zo-core{fill:color-mix(in srgb,var(--accent) 20%,transparent);stroke:var(--accent);stroke-width:1.5}
.zo-lbl{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;fill:var(--tx2);opacity:0;transition:opacity .8s 2.2s}
.zo-lbl.core{fill:var(--accent);opacity:1;transition:none}
.zo-stage.out .zo-lbl{opacity:1}
.fin-wrap{display:none;flex-direction:column;align-items:center;gap:16px;animation:rise .8s both}

/* ═══════════════ Mode édition (touche E) ═══════════════ */
#ed-banner{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:99;display:none;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--accent);border-radius:99px;
  padding:8px 16px;font-size:13px;color:var(--tx2);box-shadow:var(--card-sh);max-width:94vw;flex-wrap:wrap;justify-content:center}
#ed-banner b{color:var(--accent);font-weight:500}
body.editing #ed-banner{display:flex}
#ed-banner button{font-size:13px;color:var(--accent);border:1px solid var(--accent);border-radius:99px;padding:4px 12px}
body.editing .edt:hover{outline:1px dashed var(--accent);outline-offset:3px;cursor:text}
.edt[contenteditable="true"]{outline:2px solid var(--accent) !important;outline-offset:3px;background:color-mix(in srgb,var(--accent) 6%,transparent)}
#ed-report{position:fixed;top:64px;left:50%;transform:translateX(-50%);z-index:99;display:none;flex-direction:column;gap:6px;background:var(--panel);border:1px solid var(--line2);border-radius:14px;
  padding:16px 20px;font-size:13.5px;color:var(--tx2);max-width:min(660px,92vw);max-height:50vh;overflow:auto;box-shadow:var(--card-sh)}
#ed-report .ok{color:var(--ok)}
#ed-report .ko{color:var(--err);font-family:var(--f-mono);font-size:11.5px;word-break:break-all}

/* ═══════════════ Formats d'écran ═══════════════ */
/* Écrans peu hauts (vidéoprojecteurs 1024×768 ou 1280×720, portables) */
@media (max-height:820px){
  :root{--top:56px;--bottom:64px}
  .navb{width:40px;height:40px}
  .tableau{gap:14px;padding:14px 28px 20px}
  .t-title{font-size:clamp(26px,3.6vw,44px)}
  .t-sub{font-size:clamp(15px,1.4vw,17px)}
  .hint,.verdict .why{font-size:15.5px}
  .mock-note{font-size:13px}
  .qcard{padding:18px 32px}
  .qcard .emo{font-size:52px}
  .galaxy,.land{height:min(52vh,420px);min-height:260px}
  .board{padding:12px 18px;gap:7px}
  .bar-track{height:13px}
  .recap{padding:20px 24px;gap:9px}
  .puzzle{padding:12px 20px}
  .draft{min-height:100px}
  .chat{min-height:220px}
  .flip > *{min-height:130px;padding:16px 18px}
  .att-stage{padding-top:120px}
  .stack3d{width:220px;height:220px}
  .lay{left:30px;top:30px;width:160px;height:160px}
  .tr-net{width:min(260px,70vw)}
}
@media (max-height:660px){
  .t-sub{display:none}
  .t-eyebrow{display:none}
}
/* Téléphones et petites tablettes */
@media (max-width:760px){
  :root{--top:54px;--bottom:62px}
  .topbar{padding:0 12px;gap:8px}
  .topbar .ctx,.topbar .sep,#btn-help{display:none}
  .topbar .klogo{font-size:21px}
  .tableau{padding:16px 16px 22px;gap:14px}
  .rail{padding:0 12px;gap:10px}
  .rail .lbl{display:none}
  .rail .dots{gap:5px;flex:1 1 auto;justify-content:center;min-width:0;flex-wrap:wrap}
  .rail .dots button{width:7px;height:7px}
  .rail .dots button.on{width:18px}
  .rail .navs{flex:0 0 auto}
  .navb{width:40px;height:40px}
  .galaxy,.land{flex-basis:100%;height:52vh}
  .heads{grid-template-columns:repeat(2,auto)}
  .stack3d{display:none}
  .lcard{min-height:160px}
  .wave{height:64px}
  .wave .seg i{width:2px}
  .wave.cut{gap:3px}
  .wave.cut .seg{padding:0 2px}
  .wave .seg em{font-size:8.5px}
  .rc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tool-stage{flex-direction:column}
  .tools{flex-direction:row;flex-wrap:wrap;justify-content:center}
  .tool{width:auto;flex:1 1 90px;padding:10px}
  .tool .ti{font-size:24px}
  .px-canvas.sm{width:27vw;height:27vw}
  .qbtn{font-size:16px;padding:11px 20px}
  .cta{font-size:16px;padding:13px 26px}
  /* Textes des schémas SVG : lisibles une fois le schéma réduit. */
  .vt{font-size:34px}.vlbl,.vlbl2{font-size:26px}
  .nl-lbl{font-size:30px}.nl-num,.nl-tick{font-size:20px}
  .tl-t{font-size:26px}
  .ring-lbl{font-size:17px;letter-spacing:.08em}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .tableau.live > :where(*),.t-eyebrow,.t-title,.t-sub,.lcard,.recap li{opacity:1 !important;transform:none !important;filter:none !important}
  #lesson-inter.show{display:none}
  #aurora,body::after{display:none}
}