:root{
  --bg:#080b12; --bg2:#0d1220; --panel:#111827; --panel2:#161f31;
  --line:#24304a; --line2:#33436a;
  --ink:#eaf0fb; --muted:#8fa0bf; --faint:#5f6f8f;
  --accent:#5ad1ff; --accent2:#8b7bff; --good:#3ee6a0; --warn:#ffcf6b;
  --shadow:0 20px 60px rgba(0,0,0,.55);
  --r:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 700px at 70% -10%,#16213c 0%,transparent 60%),
             radial-gradient(900px 600px at 0% 100%,#1a1533 0%,transparent 55%),
             var(--bg);
  color:var(--ink); min-height:100vh; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
#stars{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.35),transparent),
    radial-gradient(1px 1px at 80% 20%,rgba(255,255,255,.25),transparent),
    radial-gradient(1px 1px at 60% 70%,rgba(255,255,255,.2),transparent),
    radial-gradient(1px 1px at 30% 80%,rgba(255,255,255,.18),transparent);}
a{color:var(--accent)}

/* screens */
.screen{display:none;position:relative;z-index:1;min-height:100vh;
  padding:0 20px 40px;max-width:1080px;margin:0 auto;}
.screen.active{display:block}
.hidden{display:none !important}

/* topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:22px 4px;}
.brand{font-weight:800;font-size:22px;letter-spacing:.3px;display:flex;gap:10px;align-items:center}
.logo{filter:drop-shadow(0 0 10px rgba(90,209,255,.6))}
.userchip{background:var(--panel);border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:14px;color:var(--muted)}

/* hero */
.hero{text-align:center;padding:30px 0 10px}
.badge{display:inline-block;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--line2);border-radius:999px;padding:6px 14px;
  background:rgba(90,209,255,.06)}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.08;margin:18px auto 12px;max-width:16ch;font-weight:800}
.grad{background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);max-width:60ch;margin:0 auto 26px;font-size:17px}

.domain-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:26px 0}
.dcard{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:14px;padding:16px 10px;display:flex;flex-direction:column;gap:4px;align-items:center;
  transition:transform .2s,border-color .2s}
.dcard:hover{transform:translateY(-3px);border-color:var(--line2)}
.dcard span{font-size:24px}
.dcard b{font-size:13.5px}
.dcard i{font-size:11.5px;color:var(--faint);font-style:normal}

/* buttons */
.btn{cursor:pointer;border:1px solid var(--line2);background:var(--panel2);color:var(--ink);
  border-radius:12px;padding:12px 20px;font-size:15px;font-weight:600;transition:.18s}
.btn:hover{border-color:var(--accent);box-shadow:0 0 0 3px rgba(90,209,255,.08)}
.btn.primary{border:none;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#05121f;
  box-shadow:0 10px 30px rgba(90,209,255,.25)}
.btn.primary:hover{filter:brightness(1.06);box-shadow:0 14px 36px rgba(90,209,255,.35)}
.btn.big{padding:15px 30px;font-size:16.5px;border-radius:14px}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;filter:none}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:20px 0}
.cta-row.center{margin-top:26px}

.hpi-badge{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:12.5px;
  font-weight:700;letter-spacing:.03em;color:#ffd76a;border:1px solid rgba(255,215,106,.35);
  border-radius:999px;padding:5px 13px;background:rgba(255,215,106,.08)}

.disclaimer{color:var(--faint);font-size:13px;max-width:62ch;margin:26px auto 0;line-height:1.5}
.foot{text-align:center;color:var(--faint);font-size:13px;padding:40px 0 10px}

/* panels */
.panel{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:var(--r);padding:28px;box-shadow:var(--shadow);margin:20px auto}
.panel.narrow{max-width:640px;margin-top:60px}
.panel h2{margin:0 0 18px;font-size:24px}
.panel h3{margin:0 0 16px;font-size:17px;color:var(--muted);font-weight:700;letter-spacing:.02em}
.rules{list-style:none;padding:0;margin:0 0 10px}
.rules li{padding:11px 0 11px 30px;border-bottom:1px solid var(--line);position:relative;color:var(--muted)}
.rules li:before{content:"›";position:absolute;left:8px;color:var(--accent);font-weight:800}
.rules b{color:var(--ink)}

/* test */
.test-head{display:flex;align-items:center;gap:20px;padding:22px 4px 8px;max-width:820px;margin:0 auto}
.progress-wrap{flex:1}
.progress-info{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);margin-bottom:8px}
.chip{background:rgba(90,209,255,.1);color:var(--accent);border:1px solid var(--line2);
  border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600}
.progress-bar{height:8px;background:var(--panel);border-radius:999px;overflow:hidden;border:1px solid var(--line)}
#progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));
  transition:width .3s;border-radius:999px}
.timer{font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;color:var(--ink);
  min-width:82px;text-align:center;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:8px 12px}
.timer.low{color:var(--warn);border-color:var(--warn)}

.panel.question{max-width:820px}
.q-figure{display:flex;justify-content:center;margin-bottom:18px}
.matrix-grid{display:grid;grid-template-columns:repeat(3,84px);grid-template-rows:repeat(3,84px);
  gap:8px;background:var(--line);padding:8px;border-radius:14px}
.matrix-grid .cell{background:var(--bg2);border-radius:8px;display:flex;align-items:center;justify-content:center}
.matrix-grid .cell.missing{color:var(--accent);font-size:34px;font-weight:800;
  border:2px dashed var(--line2)}
.q-figure .cellsvg{width:76px;height:76px}
.q-figure > .cellsvg{width:150px;height:150px;background:var(--bg2);border-radius:12px;border:1px solid var(--line);padding:6px}
.q-prompt{font-size:20px;font-weight:600;text-align:center;white-space:pre-line;margin:6px auto 22px;max-width:56ch}

.choices{display:grid;gap:12px;grid-template-columns:1fr 1fr;max-width:620px;margin:0 auto}
.choices.svg{grid-template-columns:repeat(4,1fr)}
.choice{background:var(--panel2);border:1.5px solid var(--line);border-radius:14px;
  padding:16px;cursor:pointer;font-size:17px;text-align:center;transition:.15s;
  display:flex;align-items:center;justify-content:center;min-height:58px}
.choices.svg .choice{padding:10px;min-height:96px}
.choice .cellsvg{width:80px;height:80px}
.choice:hover{border-color:var(--line2);transform:translateY(-2px)}
.choice.sel{border-color:var(--accent);background:rgba(90,209,255,.1);box-shadow:0 0 0 3px rgba(90,209,255,.12)}
.test-foot{text-align:center;margin-top:26px}

/* report */
.report-wrap{padding-top:30px}
.score-hero{display:grid;grid-template-columns:1fr 1fr;gap:20px;background:linear-gradient(180deg,var(--panel),var(--bg2));
  border:1px solid var(--line);border-radius:var(--r);padding:34px;box-shadow:var(--shadow);align-items:center}
.score-label{color:var(--muted);font-size:14px;letter-spacing:.05em;text-transform:uppercase}
.score-value{font-size:88px;font-weight:800;line-height:1;
  background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.score-band{font-size:19px;font-weight:700;margin-top:4px}
.score-ci{color:var(--faint);font-size:14px;margin-top:6px}
.score-gauge{position:relative;text-align:center}
.pct{color:var(--muted);font-size:14px;margin-top:6px}
.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
#radar{display:block;margin:0 auto;max-width:100%}
#bell{max-width:100%}
.radar-legend{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:center;margin-top:14px;font-size:13px;color:var(--muted)}
.radar-legend b{color:var(--ink)}
.bilan{white-space:pre-line;color:#d4deee;font-size:15px;line-height:1.7}
.bilan strong{color:var(--accent)}
.retake{text-align:center;color:var(--faint);font-size:13px;margin-top:14px}

/* history */
.history-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.hrow{display:flex;justify-content:space-between;align-items:center;background:var(--panel2);
  border:1px solid var(--line);border-radius:12px;padding:14px 18px;cursor:pointer;transition:.15s}
.hrow:hover{border-color:var(--accent)}
.hrow .hiq{font-size:22px;font-weight:800;color:var(--accent)}
.hrow .hmeta{color:var(--muted);font-size:13px}
.empty{color:var(--faint);text-align:center;padding:20px}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--panel);border:1px solid var(--line2);color:var(--ink);padding:12px 20px;
  border-radius:12px;opacity:0;transition:.3s;pointer-events:none;z-index:50;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---- v2 : stepper ---- */
.stepper{display:flex;gap:8px;justify-content:center;margin:22px auto 4px;flex-wrap:wrap;max-width:680px}
.step{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--faint);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px}
.step span{width:20px;height:20px;border-radius:50%;background:var(--panel2);display:flex;
  align-items:center;justify-content:center;font-weight:700;font-size:11px}
.step.active{color:var(--accent);border-color:var(--accent)}
.step.active span{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#05121f}
.step.done{color:var(--good);border-color:var(--good)}
.step.done span{background:var(--good);color:#05121f}

/* ---- v2 : profil ---- */
.field{max-width:320px;margin:0 auto 10px;text-align:left}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input{width:100%;background:var(--panel2);border:1px solid var(--line2);color:var(--ink);
  border-radius:12px;padding:13px 16px;font-size:18px;text-align:center;font-variant-numeric:tabular-nums}

/* ---- v2 : empan ---- */
.span-stage{text-align:center;padding:28px;max-width:560px}
.span-phase{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--line2);border-radius:999px;padding:5px 14px;margin-bottom:18px}
.span-digits{font-size:72px;font-weight:800;font-variant-numeric:tabular-nums;height:96px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.06em}
.span-digits.flash{color:var(--accent);text-shadow:0 0 24px rgba(90,209,255,.6)}
.span-instr{color:var(--muted);font-size:16px;margin:14px 0}
#span-input{max-width:280px;letter-spacing:.3em}

/* ---- v2 : substitution ---- */
.subst-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 auto 18px}
.subst-key{display:grid;grid-template-columns:repeat(9,1fr);gap:6px;margin:0 auto 24px}
.subst-key .pair{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:8px 4px;text-align:center}
.subst-key .sym{display:block;font-size:22px}
.subst-key .num{display:block;font-size:15px;color:var(--accent);font-weight:700;margin-top:2px}
.subst-symbol{font-size:96px;text-align:center;margin:10px 0 20px;transition:transform .1s}
.subst-symbol.bump{transform:scale(1.15)}
.subst-pad{display:grid;grid-template-columns:repeat(3,72px);gap:10px;justify-content:center}
.subst-pad .pad{background:var(--panel2);border:1px solid var(--line2);border-radius:12px;
  font-size:24px;font-weight:700;padding:16px 0;cursor:pointer;color:var(--ink);transition:.12s;text-align:center}
.subst-pad .pad:hover{border-color:var(--accent)}
#subst-timer{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink);
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px 14px}
#subst-timer.low{color:var(--warn);border-color:var(--warn)}

/* ---- v2 : barrage (cancellation) ---- */
.cancel-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;max-width:640px;margin:0 auto}
.cancel-grid .cx{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:18px;background:#1e293b;border-radius:6px;cursor:pointer;user-select:none}
.cancel-grid .cx.hit{background:#16a34a}
.cancel-grid .cx.miss{background:#b91c1c}
#cancel-timer{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink);
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px 14px}
#cancel-timer.low{color:var(--warn);border-color:var(--warn)}

/* ---- v2 : rapport ---- */
.r-shape{color:var(--muted);font-size:14px;text-align:center;max-width:74ch;margin:14px auto 0}
.r-norm{color:var(--faint);font-size:12.5px;text-align:center;margin-top:6px}

/* ---- A : consigne + intro cadran + analogie ---- */
.q-consigne{color:var(--accent);font-size:14px;font-weight:600;text-align:center;margin:0 0 10px}
.ic-example{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:18px;margin:6px 0 4px}
.ic-ex-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.ic-why{color:var(--good);font-size:13.5px;margin:12px 0 0}
.choice.correct{border-color:var(--good);box-shadow:0 0 0 1px var(--good) inset}
.analogy{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.analogy span{display:inline-flex;width:74px;height:74px}
.analogy span svg{width:100%;height:100%}
.analogy b{color:var(--muted);font-size:20px}
.analogy b.sep{color:var(--accent)}
.analogy .qmark{align-items:center;justify-content:center;font-size:34px;color:var(--accent);border:1px dashed var(--line2);border-radius:8px}

/* ---- A : démos sous-tests ---- */
.reverse-note{max-width:560px;margin:12px auto;background:var(--panel2);border:1px solid var(--accent);
  border-radius:12px;padding:12px 16px;color:var(--ink);font-size:14px;text-align:center}
.reverse-note .btn{margin-left:10px}
#screen-demo-subst .subst-key{grid-template-columns:repeat(6,1fr);max-width:360px;margin:0 auto 18px}

/* ---- Corsi (Gwm variante spatiale) ---- */
.corsi-grid{display:grid;grid-template-columns:repeat(3, 64px);gap:10px;justify-content:center;margin:18px auto}
.corsi-grid .cell{width:64px;height:64px;border-radius:12px;background:#1e293b;cursor:pointer;transition:background .12s}
.corsi-grid .cell.lit{background:#60a5fa}
.corsi-grid .cell.picked{background:#2563eb}

@media(max-width:820px){
  .domain-cards{grid-template-columns:repeat(2,1fr)}
  .score-hero{grid-template-columns:1fr;text-align:center}
  .score-value{font-size:72px}
  .report-grid{grid-template-columns:1fr}
  .choices{grid-template-columns:1fr}
  .choices.svg{grid-template-columns:1fr 1fr}
  .test-head{flex-direction:column-reverse;gap:12px}
  .timer{align-self:flex-end}
  .subst-key{grid-template-columns:repeat(5,1fr)}
  .span-digits{font-size:56px}
}