:root{
  --navy:#0c2a4d;
  --navy-deep:#08203d;
  --navy-soft:#15375c;
  --accent:#2d6fe0;
  --accent-dark:#1e5ac4;
  --amber:#f2a03d;
  --bg:#f3f6fb;
  --card:#ffffff;
  --text:#11243b;
  --text-soft:#5a6b82;
  --muted:#626e80;
  --border:#e4eaf2;
  --success:#1f9d6b;
  --success-bg:#e7f6ef;
  --danger:#d8473f;
  --danger-bg:#fcecea;
  --radius:12px;
  --shadow:0 1px 2px rgba(16,40,70,.06),0 6px 20px rgba(16,40,70,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased;
}
button{font-family:inherit}
.app{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:248px;flex:none;background:var(--navy);color:#cfe0f3;display:flex;flex-direction:column;padding:22px 16px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:11px;padding:4px 8px 22px;text-decoration:none}
a.brand:hover .brand-name{color:#fff}
.brand-logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(150deg,#2d6fe0,#5b9bff);display:flex;align-items:center;justify-content:center;color:#fff}
.brand-name{font-weight:700;font-size:15px;letter-spacing:.04em;color:#fff;line-height:1.1}
.brand-name span{display:block;font-weight:400;font-size:11px;letter-spacing:.18em;color:#8fb4e0}
.nav{display:flex;flex-direction:column;gap:3px;margin-top:6px}
.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:9px;color:#b6cae3;cursor:pointer;font-size:14px;border:none;background:none;text-align:left;width:100%;transition:background .15s,color .15s}
.nav-item:hover{background:var(--navy-soft);color:#fff}
.nav-item.active{background:var(--accent);color:#fff}
.nav-item svg{width:19px;height:19px;flex:none}
.side-foot{margin-top:auto;background:var(--navy-deep);border-radius:12px;padding:14px}
.side-foot .lab{font-size:11px;color:#8fb4e0;text-transform:uppercase;letter-spacing:.08em}
.side-foot .big{font-size:20px;font-weight:700;color:#fff;display:flex;align-items:center;gap:7px;margin-top:2px}
.side-foot .sub{font-size:12px;color:#9fbbdc;margin-top:10px}
.side-foot .bar{height:6px;border-radius:99px;background:#0a2240;margin-top:6px;overflow:hidden}
.side-foot .bar > i{display:block;height:100%;background:var(--amber);border-radius:99px}

/* Main */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 30px;border-bottom:1px solid var(--border);background:#fff;position:sticky;top:0;z-index:5}
.topbar h1{font-size:18px;margin:0;font-weight:700}
.topbar-right{display:flex;align-items:center;gap:14px}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text-soft);display:flex;align-items:center;justify-content:center;cursor:pointer}
.user{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text)}
.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(150deg,#2d6fe0,#5b9bff);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.view{padding:30px;max-width:1080px;width:100%}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .05s,background .15s}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:#c7d3e3}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-light:hover{background:rgba(255,255,255,.22)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0a2240,#16467e);border-radius:16px;padding:38px 34px;color:#fff}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero::before{content:"";position:absolute;right:40px;bottom:-90px;width:200px;height:200px;border-radius:50%;background:rgba(91,155,255,.16)}
.hero-title{font-size:30px;font-weight:700;margin:0 0 6px;position:relative}
.hero-accent{color:#7fb2ff}
.hero-sub{font-size:15px;color:#cfe0f3;max-width:48ch;margin:0 0 22px;position:relative}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* Badge row */
.badges{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin-top:18px}
.badge-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:15px 16px;display:flex;gap:12px;align-items:flex-start}
.badge-ic{width:38px;height:38px;border-radius:10px;background:#eaf1fd;color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
.badge-card b{font-size:14px;display:block}
.badge-card span{font-size:12.5px;color:var(--text-soft)}

/* Sections */
.section-title{font-size:18px;font-weight:700;margin:30px 0 4px}
.section-sub{font-size:14px;color:var(--text-soft);margin:0 0 16px}

/* Modules grid */
.modules-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:14px}
.module-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;cursor:pointer;transition:border-color .15s,transform .08s,box-shadow .15s;text-align:left}
.module-card:hover{border-color:#c2d4ee;box-shadow:var(--shadow);transform:translateY(-2px)}
.module-card.soon{cursor:default;opacity:.72}
.module-card.soon:hover{transform:none;box-shadow:none;border-color:var(--border)}
.num-badge{width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;margin-bottom:13px}
.mod-ic{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:13px;background:#eef3fd;color:var(--accent)}
.mod-ic svg{width:21px;height:21px}
.topbar-h1{font-size:18px;margin:0}
.topbar-view{font-size:13px;color:var(--muted);margin-left:10px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.back-site{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--text-soft);border:1px solid var(--border);border-radius:9px;padding:8px 14px;text-decoration:none;transition:color .15s,border-color .15s}
.back-site:hover{color:var(--accent);border-color:#bcd2f0}

.side-upgrade{display:block;margin-top:14px;background:var(--amber);color:#412402;text-align:center;border-radius:9px;padding:9px 10px;font-size:13px;font-weight:700;text-decoration:none;transition:background .15s}
.side-upgrade:hover{background:#e8902a}
.side-fiche{display:block;margin-top:9px;text-align:center;font-size:12.5px;color:#9fbbdc;text-decoration:none}
.side-fiche:hover{color:#fff}

.upgrade-card{display:flex;align-items:center;gap:16px;flex-wrap:wrap;max-width:560px;margin-top:16px;background:#fff7ec;border:1px solid #f6d9b0;border-radius:14px;padding:18px 20px}
.upgrade-card .up-txt{flex:1;min-width:220px}
.upgrade-card .up-txt b{display:block;font-size:15px;margin-bottom:4px}
.upgrade-card .up-txt span{font-size:13.5px;color:#7a5320;line-height:1.5}
.upgrade-card .up-btn{background:var(--amber);color:#412402;border-radius:9px;padding:10px 18px;font-size:14px;font-weight:700;text-decoration:none;transition:background .15s}
.upgrade-card .up-btn:hover{background:#e8902a}
.mod-name{font-size:15px;font-weight:600;margin:0 0 4px}
.mod-desc{font-size:13px;color:var(--text-soft);margin:0 0 14px;min-height:34px}
.mod-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.chip{font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:99px}
.chip-Facile{background:var(--success-bg);color:#0f7a52}
.chip-Moyen{background:#eef3fd;color:#1e5ac4}
.chip-Difficile{background:#fdeee7;color:#a34d1c}
.mini-bar{height:6px;border-radius:99px;background:#eef2f8;margin-top:12px;overflow:hidden}
.mini-bar > i{display:block;height:100%;background:var(--accent);border-radius:99px}

/* Quiz */
.quiz-wrap{background:#fff;border:1px solid var(--border);border-radius:16px;padding:26px;max-width:760px}
.quiz-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.q-counter{font-size:13px;color:var(--muted)}
.q-pill{font-size:12px;font-weight:600;color:var(--accent);background:#eef3fd;border-radius:99px;padding:4px 12px}
.quiz-progress{height:7px;border-radius:99px;background:#eef2f8;margin:14px 0 22px;overflow:hidden}
.quiz-progress > i{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .25s}
.q-text{font-size:18px;font-weight:600;margin:0 0 20px;line-height:1.4}
.options{display:flex;flex-direction:column;gap:10px}
.option{display:flex;align-items:center;gap:13px;padding:14px 16px;border:1.5px solid var(--border);border-radius:12px;background:#fff;font-size:15px;color:var(--text);cursor:pointer;text-align:left;transition:border-color .12s,background .12s}
.option:hover{border-color:#bcd0ee;background:#fafcff}
.opt-letter{width:26px;height:26px;border-radius:7px;background:#f1f5fb;color:var(--text-soft);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.option.correct{border-color:var(--success);background:var(--success-bg)}
.option.correct .opt-letter{background:var(--success);color:#fff}
.option.wrong{border-color:var(--danger);background:var(--danger-bg)}
.option.wrong .opt-letter{background:var(--danger);color:#fff}
.option.locked{cursor:default}
.option.locked:hover{background:#fff}
.option.correct.locked:hover{background:var(--success-bg)}
.option.wrong.locked:hover{background:var(--danger-bg)}
.opt-mark{margin-left:auto;font-weight:700}
.feedback{margin-top:18px;border-top:1px solid var(--border);padding-top:16px;display:none}
.feedback.show{display:block}
.feedback .verdict{font-weight:700;display:flex;align-items:center;gap:7px;margin-bottom:6px}
.feedback .verdict.ok{color:var(--success)}
.feedback .verdict.ko{color:var(--danger)}
.feedback p{margin:0 0 10px;font-size:14px;color:var(--text-soft)}
.source-line{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--muted);background:#f5f8fc;border:1px solid var(--border);border-radius:8px;padding:7px 11px}
.quiz-actions{display:flex;justify-content:space-between;align-items:center;margin-top:22px}

/* Result */
.result{background:#fff;border:1px solid var(--border);border-radius:16px;padding:34px;max-width:560px;text-align:center}
.ring{width:148px;height:148px;border-radius:50%;margin:6px auto 16px;display:flex;align-items:center;justify-content:center}
.ring > div{width:116px;height:116px;border-radius:50%;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .pct{font-size:32px;font-weight:700;line-height:1}
.ring .frac{font-size:12px;color:var(--muted)}
.verdict-pill{display:inline-flex;align-items:center;gap:7px;font-weight:600;padding:6px 16px;border-radius:99px;font-size:14px}
.verdict-pill.pass{background:var(--success-bg);color:var(--success)}
.verdict-pill.fail{background:var(--danger-bg);color:var(--danger)}

/* Stats */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.stat-val{font-size:26px;font-weight:700}
.stat-label{font-size:13px;color:var(--text-soft);margin-top:2px}
.progress-list{background:#fff;border:1px solid var(--border);border-radius:14px;padding:8px 20px;margin-top:18px}
.progress-row{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid var(--border)}
.progress-row:last-child{border-bottom:none}
.progress-row .pname{flex:none;width:230px;font-size:14px}
.bar{flex:1;height:8px;border-radius:99px;background:#eef2f8;overflow:hidden}
.bar > i{display:block;height:100%;border-radius:99px;background:var(--accent)}
.bar > i.done{background:var(--success)}
.progress-row .pval{flex:none;width:46px;text-align:right;font-size:13px;color:var(--text-soft);font-weight:600}

.exam-timer{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent);background:#eef3fd;border-radius:99px;padding:7px 14px}
.exam-timer.low{color:var(--danger);background:var(--danger-bg)}
.muted{color:var(--muted)}
.empty{background:#fff;border:1px dashed #cdd9ea;border-radius:14px;padding:30px;text-align:center;color:var(--text-soft)}
@media(max-width:760px){
  .sidebar{display:none}
  .view{padding:20px}
}

@media(prefers-reduced-motion:no-preference){
  @keyframes acFadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
  .quiz-wrap,.result,.hero,.stat-grid,.progress-list,.empty,.badges{animation:acFadeUp .45s cubic-bezier(.2,.7,.2,1) both}
  .module-card{animation:acFadeUp .42s cubic-bezier(.2,.7,.2,1) both}
  .modules-grid .module-card:nth-child(2){animation-delay:.04s}
  .modules-grid .module-card:nth-child(3){animation-delay:.08s}
  .modules-grid .module-card:nth-child(4){animation-delay:.12s}
  .modules-grid .module-card:nth-child(5){animation-delay:.16s}
  .modules-grid .module-card:nth-child(6){animation-delay:.2s}
  .modules-grid .module-card:nth-child(7){animation-delay:.24s}
  .modules-grid .module-card:nth-child(8){animation-delay:.28s}
  .option{animation:acFadeUp .3s ease both}
  .options .option:nth-child(2){animation-delay:.05s}
  .options .option:nth-child(3){animation-delay:.1s}
  .options .option:nth-child(4){animation-delay:.15s}
}

@font-face{
  font-family:"Bricolage Grotesque";
  src:url(/fonts/bricolage-grotesque-latin-700-normal.woff2) format("woff2");
  font-weight:700;font-style:normal;font-display:swap
}
@font-face{
  font-family:"Bricolage Grotesque";
  src:url(/fonts/bricolage-grotesque-latin-600-normal.woff2) format("woff2");
  font-weight:600;font-style:normal;font-display:swap
}
.brand-name,.hero-title,.section-title,.topbar h1,.q-text,.flash-q,.stat-val,.intro-hero h1{font-family:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif}

a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.mobile-nav{display:none}
@media(max-width:760px){
  .main{padding-bottom:76px}
  .mobile-nav{
    position:fixed;bottom:0;left:0;right:0;z-index:40;display:flex;
    background:var(--navy);border-top:1px solid rgba(255,255,255,.1);
    padding:6px 8px calc(6px + env(safe-area-inset-bottom))
  }
  .mobile-nav .nav-item{
    flex:1;flex-direction:column;gap:3px;font-size:11px;padding:7px 4px;
    justify-content:center;align-items:center;text-align:center;border-radius:9px
  }
  .mobile-nav .nav-item svg{width:20px;height:20px}
}