/* =============================================================================
   MATHÉSCIENCES — Tests de niveau · feuille de style (charte commune)
   Palette/police issues du design-system Typst (../Insta)
   ============================================================================= */
:root{
  --navy:#0f1f34;
  --gold:#efcf53;
  --gold-deep:#b8932f;
  --cream:#fbf3d0;
  --page:#f7efd3;
  --white:#ffffff;
  --ink:#0f1f34;
  --muted:#5c6b7e;
  --ok:#2f9e6b;
  --ko:#d0563f;
  --radius:18px;
  --shadow:0 10px 30px rgba(15,31,52,.12);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:"Inter",system-ui,-apple-system,sans-serif;
  background:var(--page);color:var(--ink);
  -webkit-font-smoothing:antialiased;min-height:100vh;
}
.app{max-width:860px;margin:0 auto;padding:0 16px 40px;padding-bottom:calc(40px + env(safe-area-inset-bottom))}

/* --- En-tête --- */
.topbar{
  position:sticky;top:0;z-index:20;background:var(--navy);
  margin:0 -16px 0;padding:14px 18px;padding-top:calc(14px + env(safe-area-inset-top));
  display:flex;align-items:center;gap:14px;border-bottom:3px solid var(--gold);
}
.topbar img{height:40px;width:40px;border-radius:50%;background:var(--navy)}
.topbar .t-title{color:var(--cream);font-weight:700;font-size:.95rem;line-height:1.1}
.topbar .t-title small{display:block;color:var(--gold);font-weight:600;font-size:.78rem;letter-spacing:.02em}
.topbar .t-meta{margin-left:auto;color:var(--gold);font-weight:600;font-size:.9rem;text-align:right;line-height:1.2}
.topbar .t-meta small{display:block;color:#c8d2e0;font-weight:500;font-size:.72rem}

/* --- Barre de progression --- */
.progress{height:8px;background:#16273f;margin:0 -16px 22px}
.progress > i{display:block;height:100%;background:var(--gold);width:0;transition:width .3s ease}

/* --- Carte question --- */
.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 24px;margin-top:6px}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.pill{font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;background:var(--cream);color:var(--gold-deep)}
.pill.diff-facile{background:#e6f4ec;color:#2f9e6b}
.pill.diff-moyen{background:#fdf3d6;color:var(--gold-deep)}
.pill.diff-difficile{background:#fbe6e0;color:var(--ko)}
.q-num{font-family:"Caveat",cursive;color:var(--gold-deep);font-size:1.2rem;margin-bottom:2px}
.prompt{font-size:1.28rem;font-weight:600;line-height:1.45;margin:0 0 6px}
.hint{color:#6b7686;font-size:.95rem;margin:0 0 18px}
.figure{display:flex;justify-content:center;margin:10px 0 20px}
.figure svg{max-width:100%;height:auto;background:#fff;border:1px solid #eadfb6;border-radius:12px}

/* --- Options QCM --- */
.options{display:grid;gap:12px}
.opt{display:flex;align-items:center;gap:14px;min-height:62px;padding:14px 16px;border:2px solid #e3e8ef;
  border-radius:14px;background:#fff;cursor:pointer;font-size:1.12rem;line-height:1.35;transition:border-color .15s,background .15s}
.opt:active{transform:scale(.995)}
.opt .box{flex:0 0 26px;height:26px;border:2px solid #c3ccd8;border-radius:50%;display:flex;
  align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.9rem}
.opt.multi .box{border-radius:7px}
.opt.sel{border-color:var(--navy);background:#f3f6fb}
.opt.sel .box{background:var(--navy);border-color:var(--navy)}

/* --- Saisie numérique --- */
.numwrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.numwrap input{font-size:1.4rem;font-weight:600;padding:14px 16px;width:210px;border:2px solid #c3ccd8;
  border-radius:14px;font-family:inherit;color:var(--ink)}
.numwrap input:focus{outline:none;border-color:var(--navy)}
.numwrap .unit{font-size:1.1rem;color:#6b7686;font-weight:600}

/* --- Vrai/Faux grille --- */
.tf{display:grid;gap:12px}
.tf-row{display:flex;align-items:center;gap:12px;border:1px solid #e3e8ef;border-radius:14px;padding:12px 14px}
.tf-row .stmt{flex:1;font-size:1.06rem;line-height:1.35}
.tf-btns{display:flex;gap:8px;flex:0 0 auto}
.tf-btns button{border:2px solid #c3ccd8;background:#fff;border-radius:10px;padding:9px 14px;font-weight:700;
  font-family:inherit;font-size:.95rem;cursor:pointer;color:#6b7686}
.tf-btns button.on-v{background:var(--ok);border-color:var(--ok);color:#fff}
.tf-btns button.on-f{background:var(--ko);border-color:var(--ko);color:#fff}

/* --- Remise en ordre (glisser-déposer) --- */
.sortable{display:grid;gap:10px;margin-top:4px}
.sort-item{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid #e3e8ef;border-radius:12px;
  padding:12px 14px;font-size:1.05rem;touch-action:none;user-select:none;cursor:grab}
.sort-item .grip{color:#aab4c2;font-size:1.3rem;line-height:1}
.sort-item code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1rem}
.sort-item.dragging{box-shadow:0 14px 30px rgba(15,31,52,.28);border-color:var(--gold-deep);cursor:grabbing;background:#fff}
.sort-ph{border:2px dashed var(--gold-deep);border-radius:12px;background:rgba(239,207,83,.14)}

/* --- Hotspot (zones cliquables) --- */
.hotspot{position:relative;display:inline-block}
.hotspot svg .hit{cursor:pointer;fill:transparent;transition:fill .12s}
.hotspot svg .hit:hover{fill:rgba(239,207,83,.18)}
.hotspot svg .hit.sel{fill:rgba(239,207,83,.45);stroke:var(--gold-deep);stroke-width:2;stroke-dasharray:4 3}

/* --- Navigation --- */
.nav{display:flex;gap:12px;margin-top:24px;align-items:center}
.btn{font-family:inherit;font-weight:700;font-size:1.05rem;border:none;border-radius:14px;padding:16px 22px;
  cursor:pointer;transition:transform .1s,filter .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--navy);color:var(--gold);flex:1}
.btn-primary:hover{filter:brightness(1.12)}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid #c9d2de}
.btn[disabled]{opacity:.4;pointer-events:none}

/* --- Écran d'accueil / identité / sélection --- */
.hero{text-align:center;padding:34px 10px}
.hero .logo{width:138px;height:138px;border-radius:50%;background:var(--navy);padding:22px;margin:0 auto 20px;
  display:block;object-fit:contain;box-shadow:var(--shadow)}
.hero h1{font-family:"Anton",sans-serif;font-weight:400;font-size:2.4rem;line-height:1.05;letter-spacing:.01em;
  margin:0 0 6px;color:var(--navy);text-transform:uppercase}
.hero .sub{display:inline-block;background:var(--navy);color:var(--gold);font-weight:700;padding:9px 18px;
  border-radius:999px;font-size:1.02rem;margin:10px 0 22px}
.note{font-size:.85rem;color:#8a94a3;max-width:520px;margin:18px auto 0;line-height:1.5}

/* identité */
.idform{max-width:420px;margin:6px auto 0;text-align:left;display:grid;gap:16px}
.idform label{display:block;font-weight:600;color:var(--navy);font-size:.95rem}
.idform input,.idform select{display:block;width:100%;margin-top:6px;font-size:16px;font-family:inherit;
  padding:13px 14px;border:2px solid #c3ccd8;border-radius:12px;color:var(--ink);background:#fff}
.idform input:focus,.idform select:focus{outline:none;border-color:var(--navy)}
.idform .btn{width:100%;margin-top:4px}
.err{color:var(--ko);font-weight:600;font-size:.9rem;margin:0}

/* sélection de test */
.picker{display:grid;gap:14px;max-width:480px;margin:8px auto 0}
.pick-card{display:flex;align-items:center;gap:14px;background:#fff;border:2px solid #e3e8ef;border-radius:16px;
  padding:18px 20px;cursor:pointer;text-align:left;font-size:1.15rem;font-weight:600;color:var(--navy);
  box-shadow:var(--shadow);transition:border-color .15s,transform .1s}
.pick-card:active{transform:scale(.99)}
.pick-card:hover{border-color:var(--gold-deep)}
.pick-card .ico{flex:0 0 48px;height:48px;border-radius:50%;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-family:"Anton",sans-serif;font-size:1rem}
.pick-card small{display:block;font-weight:500;color:#6b7686;font-size:.85rem}
.pick-empty{color:#8a94a3;max-width:420px;margin:10px auto}

/* --- Résultats --- */
.result-head{text-align:center;padding:8px 0 4px}
.score-ring{font-family:"Anton",sans-serif;font-size:3.2rem;color:var(--navy)}
.bars{display:grid;gap:14px;margin:22px 0}
.bar-row .lbl{display:flex;justify-content:space-between;font-size:.95rem;font-weight:600;margin-bottom:5px}
.bar{height:14px;background:#e7ecf2;border-radius:999px;overflow:hidden}
.bar > i{display:block;height:100%;background:var(--gold);border-radius:999px}
.bar.low > i{background:var(--ko)}
.bar.mid > i{background:var(--gold-deep)}
.bar.high > i{background:var(--ok)}
.reco{background:#0f1f34;color:#eaf0f7;border-radius:14px;padding:18px 20px;margin-top:14px;line-height:1.5}
.reco b{color:var(--gold)}
.hidden{display:none!important}
.katex{font-size:1.04em}