/* ═══════════════════════════════════════════════════════════
   OMT Academy — Design system
   Direction B « Plan de contrôle » : console opérationnelle sombre
   Palette : navy profond / azure / cyan — Type : Sora / Inter / JetBrains Mono
   NOTE: la visibilité FR/EN est gérée par un <style id="lang-style">
   injecté en JS dans le <head> (contrainte dure OmdaTech) — jamais ici.
   ═══════════════════════════════════════════════════════════ */

:root{
  --navy-deep:#030C18;      /* fond principal */
  --navy-panel:#081525;     /* panneaux */
  --navy-raise:#0C1E33;     /* éléments surélevés */
  --line:#16304C;           /* bordures */
  --azure:#0078D4;          /* accent Microsoft Azure */
  --cyan:#22D3EE;           /* accent haute-vis */
  --grad:linear-gradient(135deg,var(--azure) 0%,var(--cyan) 100%);
  --text:#E6EFF8;
  --muted:#8FA6BC;
  --ok:#34D399;
  --warn:#FBBF24;
  --danger:#F87171;
  --sec:#F87171;            /* marquage modules sécurité */
  --radius:10px;
  --maxw:960px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--navy-deep);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;line-height:1.65;
  min-height:100vh;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0,120,212,.12), transparent),
    radial-gradient(ellipse 40% 30% at 90% 10%, rgba(34,211,238,.05), transparent);
}
.mono{font-family:'JetBrains Mono',monospace}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
.hidden{display:none!important}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ── Topbar ─────────────────────────────────────────────── */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:rgba(3,12,24,.85);backdrop-filter:blur(10px);z-index:50;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:var(--grad);
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border:2px solid var(--navy-deep);
  border-radius:4px;border-right-color:transparent;border-bottom-color:transparent;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:'Sora',sans-serif;font-weight:700;font-size:17px;letter-spacing:.01em}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.topbar-right{display:flex;align-items:center;gap:20px}
.global-progress{display:flex;align-items:center;gap:10px}
.gp-label{font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.gp-track{width:120px;height:5px;border-radius:3px;background:var(--navy-raise);overflow:hidden}
.gp-fill{height:100%;width:0%;background:var(--grad);border-radius:3px;transition:width .5s ease}
.gp-value{font-size:12px;color:var(--cyan);min-width:36px;text-align:right}
.lang-switch{
  display:flex;align-items:center;gap:3px;
  border:1px solid var(--line);border-radius:8px;padding:3px 5px 3px 9px;
  background:var(--navy-raise);
}
.lang-globe{font-size:13px;margin-right:3px;opacity:.65}
.lang-opt{
  border-radius:6px;padding:5px 11px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--muted);transition:background .15s,color .15s;
}
.lang-opt:hover{color:var(--text);background:var(--navy-panel)}
.lang-opt[aria-pressed="true"]{background:var(--grad);color:#04121F}
.lang-opt[aria-pressed="true"]:hover{background:var(--grad)}

/* ── Views ──────────────────────────────────────────────── */
.view{max-width:var(--maxw);margin:0 auto;padding:48px 28px 80px}

/* ── Hero ───────────────────────────────────────────────── */
.eyebrow{font-size:11.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}
.hero-title{
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(30px,5vw,46px);line-height:1.12;letter-spacing:-.02em;margin-bottom:16px;
}
.hero-title em{
  font-style:normal;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{color:var(--muted);max-width:620px;font-size:16.5px;margin-bottom:26px}
.hero-stats{display:flex;gap:14px;flex-wrap:wrap}
.stat-chip{
  border:1px solid var(--line);border-radius:8px;padding:10px 16px;
  background:var(--navy-panel);font-size:12px;
}
.stat-chip b{color:var(--cyan);font-size:16px;display:block;font-weight:700}
.stat-chip span{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;font-size:10px}

/* ── Curriculum circuit ─────────────────────────────────── */
.circuit-wrap{margin-top:56px}
.section-label{font-size:12px;color:var(--cyan);letter-spacing:.1em;margin-bottom:22px}
.circuit{position:relative;padding-left:34px}
.circuit::before{
  content:"";position:absolute;left:11px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--azure),var(--cyan) 60%,var(--sec));opacity:.35;
}
.node{
  position:relative;margin-bottom:14px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--navy-panel);
  transition:border-color .2s, transform .2s;
}
.node:hover{border-color:var(--azure);transform:translateX(3px)}
.node.is-security{border-left:3px solid var(--sec)}
.node.is-done{border-color:rgba(52,211,153,.4)}
.node::before{ /* nœud sur le rail */
  content:"";position:absolute;left:-29px;top:26px;width:12px;height:12px;border-radius:50%;
  background:var(--navy-deep);border:2px solid var(--azure);
}
.node.is-security::before{border-color:var(--sec)}
.node.is-done::before{background:var(--ok);border-color:var(--ok)}
.node-head{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:18px 20px;text-align:left;
}
.node-num{
  font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:4px 8px;flex-shrink:0;
}
.node.is-security .node-num{color:var(--sec);border-color:rgba(248,113,113,.35)}
.node-titles{flex:1;min-width:0}
.node-title{font-family:'Sora',sans-serif;font-weight:600;font-size:16px}
.node-meta{font-size:11.5px;color:var(--muted);margin-top:2px;font-family:'JetBrains Mono',monospace;letter-spacing:.03em}
.node-badges{display:flex;align-items:center;gap:10px;flex-shrink:0}
.badge{
  font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 9px;border-radius:5px;border:1px solid var(--line);color:var(--muted);
}
.badge.sec{color:var(--sec);border-color:rgba(248,113,113,.35)}
.badge.done{color:var(--ok);border-color:rgba(52,211,153,.4)}
.badge.score{color:var(--cyan);border-color:rgba(34,211,238,.35)}
.node-actions{
  display:flex;gap:10px;padding:0 20px 16px;
}
.node-desc{padding:0 20px 14px;color:var(--muted);font-size:14px;max-width:640px}

/* ── Buttons ────────────────────────────────────────────── */
.btn{
  border-radius:8px;padding:9px 18px;font-size:13.5px;font-weight:600;
  font-family:'Inter',sans-serif;transition:filter .15s, border-color .2s;
}
.btn-primary{background:var(--grad);color:#04121F}
.btn-primary:hover{filter:brightness(1.12)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan)}
.btn:disabled{opacity:.35;cursor:not-allowed;filter:none}

/* ── Lesson view ────────────────────────────────────────── */
.crumbs{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:34px}
.crumb-back{color:var(--cyan);font-size:12px;letter-spacing:.03em}
.crumb-back:hover{text-decoration:underline}
.crumb-sep{opacity:.4}
.lesson h2{
  font-family:'Sora',sans-serif;font-weight:700;font-size:28px;
  letter-spacing:-.015em;margin-bottom:8px;line-height:1.2;
}
.lesson .lesson-ref{
  font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted);
  letter-spacing:.05em;margin-bottom:28px;display:block;
}
.lesson h3{
  font-family:'Sora',sans-serif;font-weight:600;font-size:19px;
  margin:34px 0 12px;color:var(--cyan);
}
.lesson p{margin-bottom:16px;color:#C7D6E4;max-width:70ch}
.lesson strong{color:var(--text)}
.lesson code{
  font-family:'JetBrains Mono',monospace;font-size:.88em;
  background:var(--navy-raise);border:1px solid var(--line);
  border-radius:4px;padding:1px 6px;color:var(--cyan);
}
.callout{
  border:1px solid var(--line);border-left:3px solid var(--azure);
  border-radius:8px;background:var(--navy-panel);
  padding:16px 20px;margin:22px 0;max-width:70ch;
}
.callout.work{border-left-color:var(--warn)}
.callout.sec{border-left-color:var(--sec)}
.callout-tag{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.09em;
  text-transform:uppercase;color:var(--muted);display:block;margin-bottom:6px;
}
.callout p{margin-bottom:0}
.lesson-nav{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
}
.lesson-pos{font-size:12px;color:var(--muted)}

/* ── Quiz ───────────────────────────────────────────────── */
.quiz-shell{max-width:720px}
.quiz-meta{
  display:flex;justify-content:space-between;font-size:12px;color:var(--muted);
  margin-bottom:18px;letter-spacing:.05em;
}
#quizScore{color:var(--cyan)}
.quiz-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--navy-panel);padding:30px;
}
.q-type{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--muted);
  letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:14px;
}
.q-text{font-family:'Sora',sans-serif;font-weight:600;font-size:19px;line-height:1.45;margin-bottom:8px}
.q-scenario{
  border:1px dashed var(--line);border-radius:8px;padding:14px 18px;
  color:var(--muted);font-size:14.5px;margin:14px 0 6px;
}
.q-options{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.q-opt{
  text-align:left;border:1px solid var(--line);border-radius:8px;
  padding:13px 17px;font-size:14.5px;line-height:1.5;color:#C7D6E4;
  transition:border-color .15s, background .15s;
  display:flex;gap:12px;align-items:baseline;
}
.q-opt:hover:not(:disabled){border-color:var(--azure);background:var(--navy-raise)}
.q-opt .opt-key{
  font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:4px;padding:1px 7px;flex-shrink:0;
}
.q-opt.correct{border-color:var(--ok);background:rgba(52,211,153,.08)}
.q-opt.correct .opt-key{color:var(--ok);border-color:var(--ok)}
.q-opt.wrong{border-color:var(--danger);background:rgba(248,113,113,.07)}
.q-opt.wrong .opt-key{color:var(--danger);border-color:var(--danger)}
.q-explain{
  margin-top:20px;border-top:1px solid var(--line);padding-top:18px;
  font-size:14.5px;color:var(--muted);
}
.q-explain b{color:var(--text)}
.q-actions{margin-top:22px;display:flex;justify-content:flex-end;gap:10px}

/* résultat final */
.quiz-result{text-align:center;padding:20px 0}
.qr-score{
  font-family:'Sora',sans-serif;font-weight:800;font-size:52px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.qr-verdict{font-family:'Sora',sans-serif;font-size:19px;font-weight:600;margin:10px 0 6px}
.qr-note{color:var(--muted);font-size:14px;max-width:46ch;margin:0 auto 24px}

/* ── Footer ─────────────────────────────────────────────── */
.foot{
  text-align:center;padding:26px;border-top:1px solid var(--line);
  color:var(--muted);font-size:11px;letter-spacing:.05em;
}

/* ── Brique 9 : polissage (skip-link, accessibilité, révision) ─ */
.skip-link{
  position:absolute;left:12px;top:-48px;z-index:100;
  background:var(--navy-raise);border:1px solid var(--cyan);border-radius:8px;
  color:var(--cyan);padding:9px 16px;font-size:13px;font-weight:600;
  transition:top .15s ease;
}
.skip-link:focus{top:12px}
.view:focus{outline:none} /* focus programmatique de vue : pas de halo visuel intrusif */

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width:640px){
  .global-progress{display:none}
  .view{padding:32px 18px 60px}
  .node-head{flex-wrap:wrap}
  .node-badges{width:100%;margin-top:4px}
  .node-actions{flex-wrap:wrap}
}
