:root{
  --ink:#0e1214;
  --panel:#151a1d;
  --panel-2:#1b2124;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --text:#eaeeec;
  --text-dim:#9aa6a2;
  --text-faint:#7f8c88;
  --pulse:#e4574c;
  --pulse-dim:rgba(228,87,76,.14);
  --pulse-btn:#c9463c;
  --monitor:#5fcfa6;
  --monitor-dim:rgba(95,207,166,.12);
  --amber:#dfae5d;
  --o2low:#7f9ee0;
  --o2high:#e4574c;
  --uv:#b39ddb;
  --beat:.857s;
  --breath:4.3s;
  --r-xs:6px;
  --r-sm:8px;
  --r:10px;
  --r-lg:14px;
  --t:150ms;
  --t-press:160ms;
  --hit:44px;
  --font-display:"Literata",Georgia,"Times New Roman",serif;
  --font-body:"Public Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0}
html{-webkit-text-size-adjust:100%;font-size:16px}
body{
  background:var(--ink);color:var(--text);font-family:var(--font-body);min-height:100vh;
  padding:calc(16px + env(safe-area-inset-top)) calc(14px + env(safe-area-inset-right)) calc(40px + env(safe-area-inset-bottom)) calc(14px + env(safe-area-inset-left));
  line-height:1.5;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(ellipse 900px 500px at 50% -10%, rgba(95,207,166,.05), transparent 60%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0px, rgba(255,255,255,.018) 1px, transparent 1px, transparent 28px);
}
h1,h2,h3{font-family:var(--font-display);font-weight:600;margin:0;text-wrap:balance}
p{margin:0;line-height:1.55}
button{font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
:focus-visible{outline:2px solid var(--monitor);outline-offset:3px;border-radius:var(--r-xs)}
::selection{background:rgba(95,207,166,.3)}

/* ---------- ambient top trace ---------- */
.ecg-strip{max-width:520px;margin:0 auto 16px;height:32px;opacity:.4}
.ecg-strip canvas{width:100%;height:100%;display:block}

/* ---------- shell ---------- */
.shell{max-width:480px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:0 30px 80px -30px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.04)}
.shell-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);font-family:var(--font-mono)}
.brand{display:flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:.06em;color:var(--text-dim);text-transform:uppercase;min-width:0}
.brand svg{flex:none}
.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.head-right{display:flex;align-items:center;gap:12px;flex:none}
.timer{font-size:13px;color:var(--monitor);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.bpm-badge{font-size:12px;color:var(--text-dim);border:1px solid var(--line);border-radius:var(--r-xs);padding:4px 8px;font-variant-numeric:tabular-nums;display:inline-flex;align-items:center;gap:4px;transition:color var(--t),border-color var(--t)}
.bpm-badge b{color:var(--text);font-weight:600}
.bpm-badge.hot{color:var(--pulse);border-color:rgba(228,87,76,.5)}
.bpm-badge.hot b{color:var(--pulse)}
@keyframes pulse-txt{0%,100%{opacity:1}30%{opacity:.55}}

/* ---------- progress rail ---------- */
.rail{display:flex;gap:4px;padding:10px 16px 0}
.tick{flex:1;height:3px;border-radius:2px;background:var(--line-strong);position:relative;transition:background .3s}
.tick.done{background:var(--monitor)}
.tick.active{background:var(--pulse)}
.rail-label{padding:6px 16px 14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim)}
.rail-label b{color:var(--text);font-weight:600}

/* ---------- screens ---------- */
.screen{padding:22px 20px 26px;display:flex;flex-direction:column;gap:16px;animation:screen-in 220ms cubic-bezier(.2,.7,.2,1)}
@keyframes screen-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.screen.ar{animation:fade-in 260ms ease-out}
@keyframes fade-in{from{opacity:0}to{opacity:1}}
.eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--monitor)}
.lead{font-size:1.55rem;line-height:1.18;letter-spacing:-.005em}
.sub{color:var(--text-dim);font-size:.95rem;max-width:58ch}

/* ---------- toutes les pages : tenir dans l'écran ---------- */
/* téléphones (≤ 960 px de haut) : chrome allégé, espacements compacts */
@media (max-height:960px){
  .ecg-strip{display:none}
  body{padding-bottom:calc(16px + env(safe-area-inset-bottom))}
  .rail-label{display:none}
  .rail{padding-bottom:10px}
  .screen{gap:12px;padding:16px 16px 16px}
  #endEyebrow{display:none}
  .screen.end{gap:8px}
  .tips{max-height:30dvh;overflow:auto;padding-right:4px}
  #scr-teacher .sub,#scr-teacher .teacher-tip{display:none}
  .table-wrap{max-height:30dvh}
}
/* petits téléphones (≤ 700 px) : textes plus serrés */
@media (max-height:700px){
  .lead{font-size:1.3rem}
  .sub{font-size:.88rem;line-height:1.4}
}
.link-btn.center{align-self:center}
.eyebrow.center{text-align:center}

/* scanner */
.scan-box{max-height:44vh;max-height:44dvh;margin:0 auto;width:100%;max-width:min(100%, 44dvh)}
.scan-manual{padding:10px 12px;gap:8px}
.scan-manual .objectives-title{margin:0;color:var(--text-faint)}
.scan-manual .chips{flex-wrap:nowrap;gap:6px}
.scan-manual .chip{flex:1;padding:8px 4px;text-align:center;white-space:nowrap;font-size:11px;min-height:36px}
@media (max-height:700px){ .scan-box{max-height:36dvh;max-width:min(100%, 36dvh)} }

/* réglages de station */
@media (max-height:700px){
  #wIntro{display:none}
  .objectives{padding:10px 12px}
  .objectives ol{font-size:.84rem;line-height:1.4}
  .steps{gap:6px}
  .step-row p{font-size:.86rem;line-height:1.35}
  .step-num{width:20px;height:20px;font-size:11px}
}

/* quiz : modèle borné, explication en volet fixe sur mobile */
.quiz-heart{display:flex;justify-content:center}
.quiz-heart svg{max-height:40vh;max-height:40dvh;width:auto;max-width:100%}
@media (max-width:600px){
  .explain{position:fixed;left:0;right:0;bottom:0;z-index:45;border-radius:var(--r-lg) var(--r-lg) 0 0;padding:14px 16px calc(14px + env(safe-area-inset-bottom));box-shadow:0 -20px 50px -20px rgba(0,0,0,.9);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:sheet-in var(--t) ease-out}
  .explain.is-ok{background:rgba(16,38,30,.94)}
  .explain.is-ko{background:rgba(44,34,14,.94)}
  .explain p{max-height:30vh;overflow:auto}
}
@keyframes sheet-in{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}

/* bilan : score + verdict côte à côte, sections repliables */
.score-row{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}
.score-row .score-block{padding:0;text-align:center;min-width:96px}
.score-row .score-num{font-size:2.4rem}
.score-row .stars{font-size:1.1rem;letter-spacing:.15em}
.score-row .score-label{font-size:10px;white-space:nowrap}
.score-row .verdict{padding-left:12px}
.score-row .verdict-title{font-size:1rem}
.score-row .verdict-text{font-size:.82rem;line-height:1.4}
.tips-box .tips li{font-size:.82rem;line-height:1.4}
.tips-box .recap-title{margin-bottom:6px}
details.fold{padding:0}
details.fold summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0;min-height:var(--hit);padding:0 14px;color:var(--text-dim)}
details.fold summary::-webkit-details-marker{display:none}
details.fold summary::after{content:"";width:8px;height:8px;border-right:1.5px solid var(--text-faint);border-bottom:1.5px solid var(--text-faint);transform:rotate(45deg);transition:transform var(--t);flex:none}
details.fold[open] summary::after{transform:rotate(-135deg)}
details.fold > :not(summary){padding:0 14px 12px}
details.fold .fold-meta{margin-left:auto;font-family:var(--font-mono);color:var(--monitor);font-size:11px;letter-spacing:0;text-transform:none}
details.fold ul{max-height:32vh;overflow:auto}
.end-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.screen.end{gap:10px}
.screen.end .end-actions{gap:8px;margin-top:auto}
@media (max-height:700px){
  .tips-box .tips li{font-size:.78rem;line-height:1.35}
  .tips{gap:4px;max-height:22dvh}
  .score-row{gap:10px}
  .score-row .score-num{font-size:2rem}
  .score-row .verdict-text{font-size:.78rem}
  details.fold summary{min-height:40px}
  .screen.end{gap:8px}
}

/* formateur : le tableau défile dans son cadre */
.table-wrap{max-height:34vh;max-height:34dvh;overflow:auto}
.teacher-stats{gap:6px}
.stat{padding:8px 6px;display:flex;flex-direction:column;gap:2px}
.stat b{font-size:1.15rem}
.stat span{font-size:9.5px;letter-spacing:.06em}
@media (max-height:700px){
  .sessions th,.sessions td{padding:6px 8px}
}

/* ---------- accueil : tient dans l'écran ---------- */
body.home-view .rail,body.home-view .rail-label{display:none}
.screen.home{gap:12px;padding:16px 18px 12px}
.home-head{display:flex;flex-direction:column;gap:6px}
.home .lead{font-size:1.4rem}
.home .sub{font-size:.9rem;line-height:1.45}
.stations.grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.stations.grid .station{grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:8px 6px;padding:12px;min-height:0;align-items:start}
.stations.grid .st-num{display:none}
.stations.grid .st-icon{grid-column:1;grid-row:1;width:24px;height:24px}
.stations.grid .st-status{grid-column:2;grid-row:1;font-size:11px}
.stations.grid .st-status .chev{width:16px;height:16px}
.stations.grid .st-body{grid-column:1/3;grid-row:2}
.stations.grid .st-body b{font-size:.95rem;line-height:1.2}
.stations.grid .st-body span{display:none}
@media (min-width:520px){
  .stations.grid .st-body span{display:block;font-size:.78rem}
}
@media (max-height:700px){
  .home .sub{font-size:.86rem;line-height:1.4}
  .stations.grid .station{padding:10px 12px}
  .screen.home{gap:10px}
}
@media (max-height:640px){
  .home .lead{font-size:1.25rem}
  .home .sub{display:none}
  .screen.home{gap:10px}
}
.qr-dialog{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--panel);color:var(--text);padding:18px;width:min(92vw,360px);box-shadow:0 30px 80px -30px rgba(0,0,0,.8);display:none;flex-direction:column;gap:12px;align-items:stretch}
.qr-dialog[open]{display:flex}
.qr-dialog::backdrop{background:rgba(6,10,11,.7);backdrop-filter:blur(4px)}
.qr-dialog-head{display:flex;align-items:center;justify-content:space-between}
.qr-dialog .label-card{margin:4px auto 0}

/* ---------- accueil : stations ---------- */
.scan-btn{font-size:14px;min-height:54px}
.stations{display:flex;flex-direction:column;gap:8px}
.station{
  display:grid;grid-template-columns:auto auto 1fr auto;gap:12px;align-items:center;text-align:left;
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);padding:14px;min-height:64px;color:var(--text);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);transition:border-color var(--t),background var(--t),transform var(--t-press);
}
.station:hover{border-color:var(--line-strong);background:#182528}
.station:active{transform:scale(.985)}
.station.done{border-color:rgba(95,207,166,.4)}
.st-num{font-family:var(--font-mono);font-size:11px;color:var(--text-faint);letter-spacing:.08em}
.st-icon{width:26px;height:26px;fill:none;stroke:var(--monitor);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.station.done .st-icon{stroke:var(--monitor)}
.st-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.st-body b{font-family:var(--font-display);font-weight:600;font-size:1rem}
.st-body span{font-size:.8rem;color:var(--text-dim);line-height:1.4}
.st-status{font-family:var(--font-mono);font-size:12px;color:var(--text-faint);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.st-status .chev{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.station.done .st-status{color:var(--monitor)}
.stations.compact .station{padding:8px 12px;gap:10px}
.stations.compact .st-icon{width:20px;height:20px}
.stations.compact .st-body b{font-size:.9rem}
.parcours-sum{border:1px solid rgba(95,207,166,.45);background:var(--monitor-dim);border-radius:var(--r);padding:10px 12px;order:-1}
.sum-title{font-family:var(--font-display);font-weight:600;color:var(--monitor);font-size:1rem}
.sum-text{font-size:.82rem;line-height:1.4;color:var(--text-dim);margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.screen.home .parcours-sum{order:0}
.home-qr{border:1px solid var(--line);border-radius:var(--r);padding:0 14px}
.home-qr summary{cursor:pointer;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim);min-height:var(--hit);display:flex;align-items:center}
.home-qr[open]{padding-bottom:14px}
.home-qr[open] summary{margin-bottom:12px}
.home-qr .label-card{margin:0 auto}
.qr-tools{display:grid;grid-template-columns:repeat(4,auto);justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:10.5px;color:var(--text-faint);margin-top:auto}
.qr-tools span{display:none}
.qr-tools .link-btn{padding:8px 2px;font-size:10.5px;letter-spacing:.02em;white-space:nowrap}
.link-btn{background:none;border:none;min-height:var(--hit);padding:8px 6px;color:var(--text-dim);font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;text-decoration:underline;text-underline-offset:4px;border-radius:var(--r-xs)}
.link-btn:hover{color:var(--monitor)}

/* ---------- specimen label / QR ---------- */
.label-card{align-self:center;background:#f1f1ea;color:#0a0f12;padding:16px 16px 12px;border-radius:var(--r-xs);transform:rotate(-1.1deg);box-shadow:0 18px 40px -18px rgba(0,0,0,.6);position:relative;width:min(100%,232px)}
.label-card::before{content:"";position:absolute;inset:6px;border:1px dashed rgba(10,15,18,.25);pointer-events:none}
#qr-box{display:flex;justify-content:center;padding:4px;font-family:var(--font-mono);font-size:11px;word-break:break-all}
#qr-box img{display:block}
.label-meta{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.05em;color:#41504a;display:flex;justify-content:space-between;margin-top:8px;text-transform:uppercase}

/* ---------- scanner ---------- */
.scan-box{position:relative;aspect-ratio:1;max-height:60vh;border-radius:var(--r-lg);overflow:hidden;background:#060a0b;border:1px solid var(--line)}
.scan-box video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scan-frame{position:absolute;inset:14%;border:2px solid var(--monitor);border-radius:8px;opacity:.85;pointer-events:none;
  mask:linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;padding:0}
.scan-frame::before,.scan-frame::after{content:"";position:absolute;inset:0;border-radius:8px}
.scan-line{position:absolute;left:14%;right:14%;top:14%;height:2px;background:linear-gradient(90deg,transparent,var(--monitor),transparent);animation:scanline 2.2s ease-in-out infinite;pointer-events:none}
@keyframes scanline{0%,100%{transform:translateY(0)}50%{transform:translateY(calc(72vw - 40px))}}
@media (min-width:460px){@keyframes scanline{0%,100%{transform:translateY(0)}50%{transform:translateY(290px)}}}
.scan-status{position:absolute;left:10px;right:10px;bottom:10px;text-align:center;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:var(--text);background:rgba(10,15,18,.72);border:1px solid var(--line);padding:8px 10px;border-radius:var(--r-sm)}
.scan-manual{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;background:var(--panel-2);display:flex;flex-direction:column;gap:8px}

/* ---------- objectifs / étapes ---------- */
.objectives{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;background:var(--panel-2)}
.objectives-title{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--monitor);margin-bottom:6px}
.objectives ol{margin:0;padding-left:18px;color:var(--text-dim);font-size:.88rem;line-height:1.5}
.objectives li::marker{color:var(--monitor);font-family:var(--font-mono);font-size:.8rem}
.steps{display:flex;flex-direction:column;gap:10px}
.step-row{display:flex;gap:12px;align-items:flex-start}
.step-num{font-family:var(--font-mono);font-size:12px;color:var(--ink);background:var(--monitor);width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex:none;font-weight:600}
.step-row p{font-size:.92rem;color:var(--text-dim)}
.primary-btn{background:var(--pulse-btn);color:#fff;border:none;min-height:48px;padding:12px 20px;border-radius:var(--r);font-family:var(--font-mono);font-size:13px;letter-spacing:.03em;text-transform:uppercase;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 8px 20px -12px rgba(201,70,60,.6);transition:filter var(--t),transform var(--t-press),box-shadow var(--t)}
.primary-btn:hover{filter:brightness(1.06)}
.primary-btn:active{transform:scale(.98);box-shadow:none}
.fallback-btn{align-self:center;background:none;border:1px solid var(--line-strong);color:var(--text);min-height:var(--hit);padding:10px 18px;border-radius:var(--r);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;text-transform:uppercase}

/* ---------- AR plein écran ---------- */
body.ar-full{overflow:hidden}
body.ar-full .ecg-strip{display:none}
body.ar-full .shell{background:none;border-color:transparent;box-shadow:none}
body.ar-full .shell > :not(#scr-ar){display:none}
.ar-sheet .disclaimer{display:none}
.ar-sheet .ghost-btn.accent{flex-basis:auto}
.screen.ar{position:fixed;inset:0;z-index:40;padding:0;gap:0;display:block;background:#000;height:100vh;height:100dvh;overflow:hidden}
.screen.ar .viewfinder{position:absolute;inset:0;aspect-ratio:auto;max-height:none;border:none;border-radius:0}
.screen.ar .stage{top:var(--hud-h,64px);bottom:var(--sheet-h,40vh);inset-inline:0}
.screen.ar .rig{width:min(64%, 42vh, 42dvh)}
.screen.ar .ground-shadow{bottom:6%}
.screen.ar .reticle{top:var(--hud-h,64px);bottom:var(--sheet-h,40vh)}
.screen.ar .gesture-hint{bottom:calc(var(--sheet-h,40vh) + 10px)}
.screen.ar .vf-caption{top:calc(var(--hud-h,64px) + 8px)}
.screen.ar .bracket.tl,.screen.ar .bracket.tr{top:calc(var(--hud-h,64px) + 6px)}
.screen.ar .bracket.bl,.screen.ar .bracket.br{bottom:calc(var(--sheet-h,40vh) + 6px)}
.ar-hud{position:absolute;top:0;left:0;right:0;z-index:3;padding:calc(8px + env(safe-area-inset-top)) 12px 8px;display:flex;flex-direction:column;gap:6px;background:linear-gradient(rgba(10,15,18,.92),rgba(10,15,18,.55) 70%,rgba(10,15,18,0))}
.hud-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.hud-title{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--monitor);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.hud-right{display:flex;align-items:center;gap:8px;flex:none}
.hud-timer{font-family:var(--font-mono);font-size:12px;color:var(--text);font-variant-numeric:tabular-nums}
.hud-exit{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(10,15,18,.6);color:var(--text);font-size:15px;display:flex;align-items:center;justify-content:center;padding:0;transition:transform var(--t-press),background var(--t)}
.hud-exit:active{transform:scale(.92)}
.ar-hud .mission{padding:6px 10px;gap:4px 10px;background:rgba(27,33,36,.88)}
.ar-hud .mission-text{font-size:.76rem}
.ar-hud .mission-hint{font-size:.76rem;padding:6px 10px}
.ar-sheet{position:absolute;left:0;right:0;bottom:0;z-index:3;max-height:52vh;max-height:52dvh;display:flex;flex-direction:column;gap:8px;padding:0 12px calc(12px + env(safe-area-inset-bottom));background:rgba(14,18,20,.94);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border-top:1px solid var(--line);border-radius:var(--r-lg) var(--r-lg) 0 0;overflow-y:auto;overscroll-behavior:contain;transition:max-height var(--t)}
.sheet-handle{position:sticky;top:0;flex:none;width:100%;height:32px;touch-action:none;background:linear-gradient(rgba(10,15,18,1),rgba(10,15,18,.6));border:none;padding:0;display:flex;align-items:center;justify-content:center;cursor:pointer;margin:0 -12px;width:calc(100% + 24px)}
.sheet-handle span{width:40px;height:4px;border-radius:2px;background:var(--line-strong)}
.ar-sheet.collapsed .sheet-body{display:none}
.ar-sheet.collapsed{max-height:34vh;max-height:34dvh}
.sheet-body{display:flex;flex-direction:column;gap:8px}
.ar-sheet .info-dock{padding:8px 10px;min-height:0;gap:2px;flex:none}
.ar-sheet .info-dock .term{font-size:.95rem}
.ar-sheet .info-dock .fact{font-size:.8rem;line-height:1.45}
.ar-sheet .chip{padding:6px 10px;font-size:11px;min-height:34px}
.ar-sheet .icon-btn{padding:6px 10px;font-size:11px;min-height:34px}
.ar-sheet .rate-note{font-size:.76rem;min-height:0}
.ar-sheet .ghost-btn{padding:8px 10px;font-size:11px;min-height:40px}
.ar-sheet .primary-btn{padding:10px 16px;font-size:12px;min-height:44px}
.ar-sheet .disclaimer{font-size:.68rem}
.ar-sheet .tour-bar{padding:6px 8px}
@media (min-width:700px){
  .screen.ar .rig{width:min(40%, 46vh)}
  .ar-sheet{left:50%;transform:translateX(-50%);width:min(100%,560px)}
}
/* téléphone en paysage : panneau à droite, modèle à gauche */
@media (orientation:landscape) and (max-height:520px){
  .ar-sheet{top:0;bottom:0;left:auto;right:0;transform:none;width:46%;max-height:none;border-top:none;border-left:1px solid var(--line);border-radius:var(--r-lg) 0 0 var(--r-lg);padding-top:calc(52px + env(safe-area-inset-top))}
  .ar-sheet.collapsed{max-height:none;width:34%}
  .sheet-handle{display:none}
  .ar-hud{right:46%}
  .screen.ar .stage,.screen.ar .reticle{bottom:0;right:46%;top:var(--hud-h,64px)}
  .screen.ar .rig{width:min(70%, 70vh)}
  .screen.ar .gesture-hint{bottom:10px;left:27%}
  .screen.ar .bracket.tr,.screen.ar .bracket.br{right:calc(46% + 6px)}
  .screen.ar .bracket.bl,.screen.ar .bracket.br{bottom:6px}
  .screen.ar .vf-caption{right:calc(46% + 44px)}
}

/* ---------- mission ---------- */
.mission{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:6px 10px;align-items:center;border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;background:var(--panel-2)}
.mission-text{font-size:.82rem;color:var(--text-dim)}
.mission-text b{color:var(--text)}
.mission-k{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber);margin-right:6px}
.mission.done .mission-k{color:var(--monitor)}
.mission-count{font-family:var(--font-mono);font-size:12px;color:var(--text);grid-column:2;grid-row:1/3;font-variant-numeric:tabular-nums}
.mission-progress{height:4px;background:var(--line-strong);border-radius:2px;overflow:hidden;grid-column:1}
.mission-bar{height:100%;width:0;background:var(--amber);transition:width .4s ease}
.mission.done .mission-bar{background:var(--monitor)}
.mission-hint{font-size:.82rem;color:var(--amber);background:rgba(223,174,93,.1);border:1px solid rgba(223,174,93,.3);padding:8px 10px;border-radius:var(--r-sm)}

/* ---------- AR viewfinder ---------- */
.viewfinder{position:relative;aspect-ratio:3/4;max-height:62vh;border-radius:var(--r-lg);overflow:hidden;background:radial-gradient(ellipse at 50% 30%, #1a2b28, #060a0b 75%);border:1px solid var(--line);touch-action:none;user-select:none;-webkit-user-select:none}
.viewfinder.no-cam{background:radial-gradient(ellipse at 50% 30%, #16302b, #060a0b 78%)}
.viewfinder.no-cam::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 22px),repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 22px)}
.viewfinder video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.viewfinder::before{content:"";position:absolute;inset:0;background:rgba(10,14,16,.22);pointer-events:none;z-index:1}
.viewfinder .stage,.viewfinder .reticle,.viewfinder .vf-caption,.viewfinder .bracket,.viewfinder .gesture-hint{z-index:2}
.bracket{position:absolute;width:26px;height:26px;border-color:var(--monitor);opacity:.85;pointer-events:none}
.bracket.tl{top:10px;left:10px;border-top:2px solid;border-left:2px solid}
.bracket.tr{top:10px;right:10px;border-top:2px solid;border-right:2px solid}
.bracket.bl{bottom:10px;left:10px;border-bottom:2px solid;border-left:2px solid}
.bracket.br{bottom:10px;right:10px;border-bottom:2px solid;border-right:2px solid}
.vf-caption{position:absolute;top:10px;left:44px;right:44px;text-align:center;pointer-events:none;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--monitor)}
.reticle{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;pointer-events:none}
.reticle-ring{width:34%;aspect-ratio:1;border-radius:50%;border:2px dashed var(--monitor);opacity:.9;animation:reticle 2.2s ease-in-out infinite;position:relative}
.reticle-ring::before,.reticle-ring::after{content:"";position:absolute;background:var(--monitor);opacity:.6}
.reticle-ring::before{left:50%;top:-8px;width:1px;height:calc(100% + 16px);transform:translateX(-50%)}
.reticle-ring::after{top:50%;left:-8px;height:1px;width:calc(100% + 16px);transform:translateY(-50%)}
.reticle-hint{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text);background:rgba(10,15,18,.7);border:1px solid var(--line-strong);padding:8px 12px;border-radius:var(--r-sm);text-align:center}
@keyframes reticle{0%,100%{transform:scale(1) rotate(0)}50%{transform:scale(1.08) rotate(6deg)}}
.stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;touch-action:none}
/* voile sombre derrière le modèle : lisible même sur une table claire ou à contre-jour */
.stage::before{content:"";position:absolute;left:50%;top:50%;width:min(92%,460px);aspect-ratio:1;transform:translate(-50%,-52%);border-radius:50%;background:radial-gradient(circle, rgba(8,11,13,.55) 0%, rgba(8,11,13,.35) 45%, rgba(8,11,13,0) 70%);pointer-events:none}
/* étiquette flottante attachée au repère touché (dans la couche avant : elle tourne avec le modèle) */
.callout{position:absolute;transform:translate(-50%,-100%);margin-top:-14px;padding:5px 9px;border-radius:var(--r-sm);background:rgba(14,18,20,.92);border:1px solid rgba(95,207,166,.5);color:var(--text);font-family:var(--font-body);font-size:12px;font-weight:600;white-space:nowrap;pointer-events:none;box-shadow:0 6px 16px -8px rgba(0,0,0,.8);animation:callout-in 180ms ease-out;max-width:60%;white-space:normal;text-align:center;line-height:1.25}
.callout::after{content:"";position:absolute;left:50%;bottom:-5px;width:8px;height:8px;background:inherit;border-right:1px solid rgba(95,207,166,.5);border-bottom:1px solid rgba(95,207,166,.5);transform:translateX(-50%) rotate(45deg)}
.callout.below{transform:translate(-50%,0);margin-top:14px}
.callout.below::after{bottom:auto;top:-5px;transform:translateX(-50%) rotate(-135deg)}
@keyframes callout-in{from{opacity:0;transform:translate(-50%,-100%) translateY(6px)}to{opacity:1;transform:translate(-50%,-100%)}}
.callout.below{animation:none}
.ground-shadow{position:absolute;left:50%;bottom:11%;width:58%;height:10%;border-radius:50%;background:radial-gradient(ellipse at center, rgba(0,0,0,.8), rgba(0,0,0,0) 68%);transform:translateX(-50%);transform-origin:center;filter:blur(3px);pointer-events:none;will-change:transform,opacity}
@keyframes shadow{0%,100%{opacity:.9}42%{opacity:.7}}
.rig{width:60%;cursor:grab;will-change:transform;position:relative;transform-style:preserve-3d;backface-visibility:hidden}
.rig:active{cursor:grabbing}
.model{display:block;width:100%;height:auto;overflow:visible;transform-origin:50% 55%;shape-rendering:geometricPrecision;text-rendering:optimizeLegibility}
/* couches de profondeur (AR) */
.rig.layered .layer{position:absolute;inset:0;transform-style:preserve-3d;will-change:transform}
.rig.layered .layer-mid{position:relative}
.rig.layered .layer-back{transform:translateZ(-26px) scale(1.0342)}
.rig.layered .layer-front{transform:translateZ(26px) scale(.9658)}
.rig.layered .layer-back .model{opacity:.86}
/* pas de filtre sur les couches animées : la profondeur vient de l'ombre au sol et de la couche arrière assombrie */
.rig.layered .layer-back,.rig.layered .layer-back *{pointer-events:none}
.rig.layered .layer-front{pointer-events:none}
.rig.layered .layer-front .hotspot{pointer-events:auto}
.spec{fill:url(#gSpec);pointer-events:none;mix-blend-mode:screen;transition:opacity .3s}
.rig.cutaway .spec{opacity:.35}
.model.quiz-mode .spec{opacity:.5}
.model.anim-beat{animation:beat var(--beat) cubic-bezier(.3,0,.2,1) infinite}
.model.anim-breath{animation:breathe var(--breath) cubic-bezier(.45,0,.35,1) infinite}
.model.anim-pulse{animation:pulse-glow 2.6s ease-in-out infinite}
.gesture-hint{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);white-space:nowrap;pointer-events:none;font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim);background:rgba(10,15,18,.7);border:1px solid var(--line);padding:6px 10px;border-radius:var(--r-sm)}
/* systole brève (contraction) puis diastole longue : deux temps, comme un vrai cycle */
@keyframes beat{0%{transform:scale3d(1,1,1)}10%{transform:scale3d(.975,.965,1)}22%{transform:scale3d(1.06,1.07,1)}34%{transform:scale3d(1.01,1.005,1)}44%{transform:scale3d(1.035,1.04,1)}62%{transform:scale3d(1,1,1)}100%{transform:scale3d(1,1,1)}}
/* inspiration active (40 %), pause, expiration passive plus lente */
@keyframes breathe{0%{transform:scale3d(1,1,1)}38%{transform:scale3d(1.07,1.055,1)}48%{transform:scale3d(1.07,1.055,1)}100%{transform:scale3d(1,1,1)}}
@keyframes pulse-glow{0%,100%{transform:scale3d(1,1,1)}50%{transform:scale3d(1.012,1.012,1)}}

/* ---------- éléments communs des modèles ---------- */
.region{fill:rgba(255,255,255,0);stroke:none;transition:fill .3s}
.region.is-hl{fill:rgba(95,207,166,.3)}
.cutaway-layer{opacity:0;transition:opacity .4s;pointer-events:none}
.rig.cutaway .cutaway-layer{opacity:1}
.flow-layer{opacity:0;transition:opacity .4s;pointer-events:none}
.rig.flow .flow-layer{opacity:1}
.cutaway-layer text{font-family:var(--font-mono);font-size:12px;font-weight:600;fill:#f1f1ea;paint-order:stroke;stroke:#0a0f12;stroke-width:3px}
.hotspot.cutaway-only{display:none}
.rig.cutaway .hotspot.cutaway-only{display:block}
.flow-layer .flow{fill:none;stroke-width:4;stroke-linecap:round;stroke-dasharray:3 11}
.rig.flow .flow-layer .flow{animation:flow calc(var(--beat) * 2.2) linear infinite}
@keyframes flow{to{stroke-dashoffset:-56}}

/* ---------- cœur ---------- */
.model-heart .body{fill:url(#gMuscle);stroke:#4a1511;stroke-width:1.4;stroke-linejoin:round}
.model-heart .vessel{fill:none;stroke-linecap:round;stroke-linejoin:round}
.model-heart .v-aorta{stroke:#d9433a;stroke-width:16}
.model-heart .v-aorta-br{stroke:#d9433a;stroke-width:6}
.model-heart .v-pa{stroke:#6b7fd6;stroke-width:14}
.model-heart .v-pa-br{stroke:#6b7fd6;stroke-width:8}
.model-heart .v-svc,.model-heart .v-ivc{stroke:#5f74c9;stroke-width:12}
.model-heart .v-pv{stroke:#c94a43;stroke-width:6}
.model-heart .septum{fill:none;stroke:#0a0f12;stroke-width:2.2;stroke-linecap:round}
.model-heart .wall{fill:none;stroke:#7a1f18;stroke-width:9;stroke-linecap:round;opacity:.7}
.model-heart .valve{fill:none;stroke:#f1f1ea;stroke-width:2;stroke-linecap:round}
.rig.cutaway .model-heart .body{fill:#2a1513}
.rig.cutaway .model-heart .region[data-o2="low"]{fill:rgba(127,158,224,.62)}
.rig.cutaway .model-heart .region[data-o2="high"]{fill:rgba(228,87,76,.62)}
.rig.cutaway .model-heart .region.is-hl{fill:rgba(95,207,166,.6)}
.model-heart .flow-low{stroke:#8fb2ff}
.model-heart .flow-high{stroke:#ffb0a8}

/* ---------- poumons ---------- */
.model-lungs .lung{fill:url(#gLung);stroke:#5a2420;stroke-width:1.3;stroke-linejoin:round;transition:fill .3s}
.model-lungs .lung.is-hl{fill:#e58f88;stroke:var(--monitor);stroke-width:2}
.model-lungs .fissure{fill:none;stroke:#5a2420;stroke-width:1;opacity:.6}
.model-lungs .lungs{transform-origin:120px 100px}
.model-lungs.anim-breath .lungs{animation:lungs var(--breath) ease-in-out infinite}
.model-lungs.anim-breath .diaphragm{animation:diaphragm var(--breath) ease-in-out infinite}
@keyframes lungs{0%,100%{transform:scale(1)}40%{transform:scale(1.06,1.08)}55%{transform:scale(1.06,1.08)}}
@keyframes diaphragm{0%,100%{transform:translateY(0)}40%{transform:translateY(7px)}55%{transform:translateY(7px)}}
.model-lungs .diaphragm{fill:none;stroke:#c98a6a;stroke-width:7;stroke-linecap:round}
.model-lungs .airway{fill:none;stroke:#e8d7c3;stroke-linecap:round;stroke-linejoin:round}
.model-lungs .trachea{stroke-width:14}
.model-lungs .rings{fill:none;stroke:#b7a48f;stroke-width:1.6;stroke-linecap:round}
.model-lungs .bronchi{stroke-width:8}
.model-lungs .bronchioles{stroke-width:3.5;opacity:.85}
.model-lungs .lens{fill:rgba(10,15,18,.82);stroke:var(--monitor);stroke-width:1.5}
.model-lungs .alv circle{fill:#f3b5ae;stroke:#a8433c;stroke-width:1.2}
.model-lungs .cap{fill:none;stroke:#5b8def;stroke-width:3;stroke-linecap:round}
.model-lungs .arrow{fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.model-lungs .arrow.o2{stroke:#ef4b42}
.model-lungs .arrow.co2{stroke:#5b8def}
.model-lungs .lab-o2{fill:#ffb0a8}
.model-lungs .lab-co2{fill:#b7c9f0}
.model-lungs .flow-air{stroke:#c8fff0}
.rig.cutaway .model-lungs .lung{fill-opacity:.55}

/* ---------- cerveau ---------- */
.model-brain .body{fill:url(#gBrain);stroke:#5c2f24;stroke-width:1.4;stroke-linejoin:round}
.model-brain .cerebellum{fill:#c98d7e;stroke:#5c2f24;stroke-width:1.3}
.model-brain .brainstem{fill:#d4a394;stroke:#5c2f24;stroke-width:1.3}
.model-brain .cerebellum.is-hl,.model-brain .brainstem.is-hl{fill:#8fe0bb}
.model-brain .cb-lines{fill:none;stroke:#5c2f24;stroke-width:1;opacity:.6}
.model-brain .sulci{fill:none;stroke:#5c2f24;stroke-width:1.4;stroke-linecap:round;opacity:.55}
.rig.cutaway .model-brain .lobe[data-id="frontal"]{fill:rgba(228,87,76,.55)}
.rig.cutaway .model-brain .lobe[data-id="parietal"]{fill:rgba(223,174,93,.55)}
.rig.cutaway .model-brain .lobe[data-id="temporal"]{fill:rgba(127,158,224,.55)}
.rig.cutaway .model-brain .lobe[data-id="occipital"]{fill:rgba(179,157,219,.55)}
.rig.cutaway .model-brain .lobe.is-hl{fill:rgba(95,207,166,.65)}
.model-brain .ischemia{fill:rgba(228,87,76,.45);animation:ischemia 1.2s ease-in-out infinite}
@keyframes ischemia{0%,100%{fill-opacity:.35}50%{fill-opacity:.9}}
.model-brain .artery{fill:none;stroke:#e0534a;stroke-width:4;stroke-linecap:round}
.model-brain .artery-blocked{fill:none;stroke:#6b2a25;stroke-width:4;stroke-linecap:round;stroke-dasharray:3 4}
.model-brain .clot{fill:#2a0d0b;stroke:#ffb0a8;stroke-width:1.5}

/* ---------- mains ---------- */
.model-hands .skin{fill:url(#gSkin);stroke:#7a5138;stroke-width:1.2}
.model-hands .palm.is-hl{fill:#9fe6c4}
.model-hands .crease{fill:none;stroke:#8c5f45;stroke-width:1;opacity:.7}
.model-hands .nails ellipse{fill:#f6e0d0;stroke:#a97a5c;stroke-width:1}
.model-hands .zones{opacity:0;transition:opacity .4s}
.model-hands .zone{fill:var(--uv);opacity:.75;pointer-events:none}
.model-hands .zone.is-hl{fill:var(--monitor)}
.rig.cutaway .model-hands .zones{opacity:1}
.rig.cutaway .model-hands .skin{filter:brightness(.55) saturate(.4)}
.rig.cutaway .model-hands .zone{animation:uvglow 1.6s ease-in-out infinite}
@keyframes uvglow{0%,100%{opacity:.55}50%{opacity:1}}
.model-hands .zone.is-hl{opacity:1}
.rig .model-hands .zone.is-hl{opacity:.9}
.model-hands .zones .zone.is-hl{visibility:visible}
.rig:not(.cutaway) .model-hands .zones{opacity:0}
.rig:not(.cutaway) .model-hands .zone.is-hl{opacity:0}
.model-hands .germs{opacity:0;transition:opacity .4s}
.model-hands .germs circle{fill:#9df28a;stroke:#2d7a2a;stroke-width:1}
.rig.flow .model-hands .germs{opacity:1}
.rig.flow .model-hands .germs circle{animation:germ 1.8s ease-in-out infinite}
.rig.flow .model-hands .germs circle:nth-child(2n){animation-delay:.4s}
.rig.flow .model-hands .germs circle:nth-child(3n){animation-delay:.9s}
@keyframes germ{0%,100%{transform:translate(0,0)}50%{transform:translate(1.5px,-1.5px)}}

/* ---------- repères ---------- */
.hotspot{cursor:pointer;outline:none}
.hotspot.is-done .hs-halo{animation:none;opacity:.07}
.hotspot.is-active .hs-dot{animation:tap-pop 320ms cubic-bezier(.2,.8,.3,1.4);transform-box:fill-box;transform-origin:center}
@keyframes tap-pop{0%{transform:scale(1)}50%{transform:scale(1.5)}100%{transform:scale(1)}}
.hs-halo{fill:var(--monitor);opacity:.14;transform-origin:center;transform-box:fill-box;animation:halo 4s ease-out infinite}
.hs-dot{fill:var(--monitor);stroke:var(--ink);stroke-width:2;transition:fill .2s}
.hs-label{font-family:var(--font-mono);font-size:10px;font-weight:600;fill:#f1f1ea;paint-order:stroke;stroke:#0a0f12;stroke-width:3px;stroke-linejoin:round;pointer-events:none}
.hotspot.is-active .hs-dot{fill:var(--pulse)}
.hotspot.is-active .hs-halo{fill:var(--pulse);opacity:.3}
.hotspot:focus-visible .hs-dot{stroke:var(--text);stroke-width:3}
@keyframes halo{0%{transform:scale(.6);opacity:.3}100%{transform:scale(1.5);opacity:0}}

/* quiz : toucher la structure */
.quiz-heart{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:12px 20px}
.model.quiz-mode .hs-halo{animation:none;opacity:.12}
.model.quiz-mode .hs-dot{fill:#f1f1ea}
.model.quiz-mode .hotspot.is-correct .hs-dot{fill:var(--monitor)}
.model.quiz-mode .hotspot.is-wrong .hs-dot{fill:var(--pulse)}
.model.quiz-mode .hotspot.is-locked{cursor:default}
.model.quiz-mode .zone{opacity:0}
.model.quiz-mode .zone.is-hl{opacity:.9;fill:var(--monitor)}
.quiz-hint{font-size:.85rem;color:var(--text-dim);font-style:italic}

.ring-burst{position:absolute;inset:0;margin:auto;width:10%;aspect-ratio:1;border-radius:50%;border:2px solid var(--monitor);opacity:0;pointer-events:none}
.ring-burst.play{animation:sonar 1s ease-out forwards}
@keyframes sonar{0%{transform:scale(.3);opacity:.9}100%{transform:scale(9);opacity:0}}

/* ---------- info dock ---------- */
.info-dock{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;min-height:64px;display:flex;flex-direction:column;justify-content:center;gap:3px}
.info-head{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.info-dock .term{font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:var(--monitor)}
.info-dock .role{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint)}
.info-dock .fact{font-size:.84rem;color:var(--text-dim)}
.o2-badge{font-family:var(--font-mono);font-size:10px;letter-spacing:.04em;text-transform:uppercase;padding:4px 8px;border-radius:var(--r-xs);border:1px solid}
.o2-low{color:#b7c9f0;border-color:rgba(127,158,224,.5);background:rgba(127,158,224,.12)}
.o2-high{color:#f3a9a2;border-color:rgba(228,87,76,.5);background:rgba(228,87,76,.12)}
.o2-neutral{color:var(--text-dim);border-color:var(--line-strong);background:rgba(255,255,255,.04)}
.disclaimer{font-size:.72rem;color:var(--text-faint);font-style:italic}

/* ---------- rythme / chips ---------- */
.rate-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rate-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}
.chips{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.chip{background:none;border:1px solid var(--line-strong);color:var(--text-dim);min-height:38px;padding:8px 12px;border-radius:999px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.02em;transition:border-color var(--t),color var(--t),background var(--t),transform var(--t-press)}
.chip:active{transform:scale(.96)}
.chip[aria-pressed="true"]{border-color:var(--monitor);color:var(--monitor);background:var(--monitor-dim)}
.chip-primary{border-color:var(--monitor);color:var(--ink);background:var(--monitor);font-weight:600}
.chip:disabled{opacity:.4;cursor:default}
.icon-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:1px solid var(--line-strong);color:var(--text-dim);min-height:38px;padding:8px 12px;border-radius:999px;font-family:var(--font-mono);font-size:11.5px;transition:border-color var(--t),color var(--t),background var(--t)}
.icon-btn[aria-pressed="true"]{border-color:var(--pulse);color:var(--pulse);background:var(--pulse-dim)}
.icon-btn[aria-pressed="true"] .snd-wave{animation:pulse-txt var(--beat) ease-in-out infinite}
.rate-note{font-size:.8rem;color:var(--text-dim);min-height:1.2em}

/* ---------- mesure personnelle (tapoter) ---------- */
.tap-panel{border:1px solid rgba(95,207,166,.4);background:var(--monitor-dim);border-radius:var(--r);padding:10px 12px;display:flex;flex-direction:column;gap:10px}
.tap-prompt{font-size:.82rem;color:var(--text);line-height:1.4}
.tap-row{display:flex;align-items:center;gap:12px}
.tap-btn{flex:none;width:76px;height:76px;border-radius:50%;border:2px solid var(--monitor);background:var(--panel);color:var(--monitor);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase;display:flex;align-items:center;justify-content:center;transition:transform 90ms,background var(--t)}
.tap-btn:active{transform:scale(.9);background:var(--monitor);color:var(--ink)}
.tap-meta{flex:1;display:flex;flex-direction:column;gap:2px}
.tap-count{font-family:var(--font-mono);font-size:1.4rem;color:var(--text);line-height:1}
.tap-count b{font-weight:600}
.tap-count span{font-size:11px;color:var(--text-dim)}
.tap-left{font-family:var(--font-mono);font-size:12px;color:var(--text-faint)}
.chip-tap{border-style:dashed}

/* badge de station */
.badge-pill{display:inline-block;margin-top:8px;padding:5px 10px;border-radius:999px;border:1px solid var(--line-strong);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim)}
.badge-pill.gold{border-color:var(--amber);color:var(--amber);background:rgba(223,174,93,.1)}

/* bonne réponse : micro-confirmation */
.opt.correct{animation:pop var(--t-press) ease-out}
.model.quiz-mode .hotspot.is-correct .hs-dot{animation:pop 220ms ease-out;transform-box:fill-box;transform-origin:center}
@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.04)}100%{transform:scale(1)}}

/* ---------- visite guidée ---------- */
.tour-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;border:1px solid rgba(95,207,166,.4);background:var(--monitor-dim);border-radius:var(--r);padding:8px 10px}
.tour-meta{font-family:var(--font-mono);font-size:11px;color:var(--text-dim)}
.tour-k{color:var(--monitor);letter-spacing:.08em;text-transform:uppercase;margin-right:6px}
.tour-actions{display:flex;gap:6px}

.ar-controls{display:flex;gap:10px;flex-wrap:wrap}
.ghost-btn{flex:1;background:none;border:1px solid var(--line-strong);color:var(--text);min-height:var(--hit);padding:10px 14px;border-radius:var(--r);font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;text-transform:uppercase;transition:border-color var(--t),color var(--t),background var(--t),transform var(--t-press)}
.ghost-btn:hover{border-color:var(--monitor);color:var(--monitor)}
.ghost-btn:active{transform:scale(.98)}
.ghost-btn[aria-pressed="true"]{border-color:var(--monitor);color:var(--monitor);background:var(--monitor-dim)}
.ghost-btn.accent{border-color:rgba(95,207,166,.5);color:var(--monitor);flex-basis:100%}

/* ---------- quiz ---------- */
.quiz-meta{font-family:var(--font-mono);font-size:11px;color:var(--text-faint);letter-spacing:.06em;text-transform:uppercase}
.options{display:flex;flex-direction:column;gap:9px}
.options .opt{animation:screen-in 240ms cubic-bezier(.2,.7,.2,1) both}
.options .opt:nth-child(2){animation-delay:40ms}.options .opt:nth-child(3){animation-delay:80ms}.options .opt:nth-child(4){animation-delay:120ms}
.opt{display:flex;align-items:center;gap:12px;text-align:left;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);min-height:52px;padding:12px 14px;color:var(--text);font-size:.95rem;line-height:1.35;transition:border-color var(--t),background var(--t),transform var(--t-press)}
.opt:hover:not(:disabled){border-color:var(--line-strong)}
.opt:active:not(:disabled){transform:scale(.99)}
.opt .k{font-family:var(--font-mono);font-size:11px;width:24px;height:24px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;flex:none;color:var(--text-dim)}
.opt.correct{border-color:var(--monitor);background:var(--monitor-dim)}
.opt.correct .k{border-color:var(--monitor);color:var(--monitor)}
.opt.wrong{border-color:var(--pulse);background:var(--pulse-dim)}
.opt.wrong .k{border-color:var(--pulse);color:var(--pulse)}
.opt:disabled{cursor:default}
.explain{border-radius:var(--r);padding:14px;display:flex;flex-direction:column;gap:8px;border:1px solid var(--line)}
.explain.is-ok{border-color:rgba(95,207,166,.45);background:var(--monitor-dim)}
.explain.is-ko{border-color:rgba(223,174,93,.45);background:rgba(223,174,93,.1)}
.explain-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.explain.is-ok .explain-title{color:var(--monitor)}
.explain.is-ko .explain-title{color:var(--amber)}
.explain p{font-size:.88rem;color:var(--text)}
.explain .primary-btn{margin-top:4px}

/* ---------- bilan ---------- */
.score-block{text-align:center;padding:6px 0 4px}
.stars{font-size:1.4rem;letter-spacing:.2em;margin-bottom:2px}
.star{color:var(--line-strong)}
.star.on{color:var(--amber);text-shadow:0 0 12px rgba(223,174,93,.5)}
.score-num{font-family:var(--font-mono);font-size:3rem;color:var(--monitor);font-weight:600;line-height:1}
.score-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-top:4px}
.verdict{border-left:2px solid var(--monitor);padding:2px 0 2px 12px}
.verdict-title{font-family:var(--font-display);font-weight:600;font-size:1.1rem;color:var(--monitor)}
.verdict-text{font-size:.88rem;color:var(--text-dim);margin-top:2px}
.recap{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;background:var(--panel-2)}
.recap-title{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-bottom:8px}
.recap ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.recap li{display:flex;gap:8px;font-size:.84rem;color:var(--text-dim);line-height:1.4}
.recap li.ok .mark{color:var(--monitor)}
.recap li.ko .mark{color:var(--pulse)}
.recap .mark{font-family:var(--font-mono);font-weight:600;flex:none}
.tips-box{border-color:rgba(223,174,93,.4)}
.tips-box .recap-title{color:var(--amber)}
.tips li{color:var(--text)}
.tips li::before{content:"→";color:var(--amber);font-family:var(--font-mono);flex:none}
.explored{display:flex;flex-wrap:wrap;gap:6px;font-size:.84rem;color:var(--text-dim)}
.tag{font-family:var(--font-mono);font-size:11px;padding:5px 9px;border-radius:999px;border:1px solid}
.missing{width:100%;font-size:.78rem;color:var(--text-faint);margin-top:4px}
.class-line{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);text-align:center}
.class-line b{color:var(--text)}
.end-actions{display:flex;flex-direction:column;gap:10px}
.cta-link{background:var(--pulse-btn);color:#fff;text-decoration:none;text-align:center;padding:13px 18px;border-radius:var(--r);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.03em;text-transform:uppercase}

/* ---------- espace formateur ---------- */
.teacher-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{border:1px solid var(--line);border-radius:var(--r);padding:12px 8px;background:var(--panel-2);text-align:center}
.stat b{display:block;font-family:var(--font-mono);font-size:1.3rem;color:var(--monitor)}
.stat span{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}
.sessions{width:100%;border-collapse:collapse;font-size:.8rem}
.sessions th,.sessions td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.sessions th{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);background:var(--panel-2)}
.sessions td{color:var(--text-dim)}
.sessions td.score{font-family:var(--font-mono);color:var(--monitor)}
.sessions .empty{text-align:center;color:var(--text-faint);white-space:normal}
.csv-out{width:100%;background:var(--ink);color:var(--text-dim);border:1px solid var(--line);border-radius:var(--r-sm);padding:8px;font-family:var(--font-mono);font-size:11px;resize:vertical}
.teacher-tip{font-size:.8rem;color:var(--text-faint)}
.teacher-tip code{font-family:var(--font-mono);color:var(--text-dim)}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:50;background:#f1f1ea;color:#0a0f12;font-family:var(--font-mono);font-size:12px;letter-spacing:.02em;padding:10px 16px;border-radius:var(--r-sm);box-shadow:0 12px 30px -10px rgba(0,0,0,.8);max-width:90vw;text-align:center;animation:toast-in var(--t) ease-out}
@keyframes toast-in{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------- impression : affiches ---------- */
.print-sheets{display:none}
@media print{
  body{background:#fff;color:#0a0f12;padding:0}
  .ecg-strip,.shell,.toast{display:none!important}
  .print-sheets{display:block}
  .print-sheet{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:96vh;text-align:center;font-family:var(--font-body);page-break-after:always;break-after:page;padding:20px}
  .print-sheet:last-child{page-break-after:auto;break-after:auto}
  .print-sheet h1{font-family:var(--font-display);font-size:2.6rem;color:#0a0f12}
  .print-sheet p{max-width:52ch;font-size:1.05rem;color:#333}
  .print-eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#555}
  .print-qr{padding:12px;border:2px dashed #999;border-radius:6px}
  .print-url{font-family:var(--font-mono);font-size:12px;color:#333;word-break:break-all;max-width:80%}
  .print-steps{text-align:left;font-size:1rem;color:#333;padding-left:20px}
}

[hidden]{display:none!important}

@media (max-width:480px){ body{padding-left:10px;padding-right:10px} }
@media (max-width:400px){
  .lead{font-size:1.38rem}
  .screen{padding:18px 16px 22px}
  .score-num{font-size:2.5rem}
  .head-right{gap:8px}
  .station{grid-template-columns:auto 1fr auto;gap:10px}
  .st-num{display:none}
  .ar-controls .ghost-btn{flex:1 1 45%}
  .teacher-stats{grid-template-columns:1fr 1fr 1fr;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  .model,.model-lungs .lungs,.model-lungs .diaphragm,.ground-shadow,.hs-halo,.reticle-ring,.bpm-badge b,.icon-btn .snd-wave,.scan-line,.model-brain .ischemia,.model-hands .zone,.model-hands .germs circle{animation:none!important}
  .ring-burst.play{animation:none;opacity:0}
  .screen,.screen.ar,.options .opt,.callout,.hotspot.is-active .hs-dot{animation:none!important}
  .rig.flow .flow-layer .flow{animation:none;stroke-dasharray:none;opacity:.8}
  *{transition-duration:.01ms!important}
}