:root{--p:#46178f;--p2:#6d2fd1;--bg:#f3effa;--ink:#1f1633;--mut:#6b6580;--c0:#e21b3c;--c1:#1368ce;--c2:#d89e00;--c3:#26890c;--ok:#26890c;--ko:#e21b3c}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.4}
body.dark{background:var(--p);color:#fff}
[hidden]{display:none!important}
.wrap{max-width:560px;margin:0 auto;padding:16px}
.wrap.wide{max-width:960px}
.brand{font-weight:800;font-size:30px;color:var(--p);text-align:center;margin:8px 0 16px;letter-spacing:-.5px}
.dark .brand{color:#fff}
h1{font-size:22px;margin:0 0 12px}
h2{font-size:18px;margin:16px 0 8px}
.card{background:#fff;color:var(--ink);border-radius:16px;padding:20px;box-shadow:0 4px 16px rgba(70,23,143,.12);margin-bottom:14px}
input,textarea,select{width:100%;padding:14px;border:2px solid #d9d2ea;border-radius:12px;font:inherit;background:#fff;color:var(--ink)}
input:focus,textarea:focus{outline:none;border-color:var(--p2)}
textarea{resize:vertical}
.pin-input{font-size:28px;text-align:center;letter-spacing:6px;font-weight:700}
.btn{display:inline-block;width:100%;padding:14px 18px;border:0;border-radius:12px;background:var(--p2);color:#fff;font:inherit;font-weight:700;cursor:pointer;text-align:center;text-decoration:none;margin-top:10px}
.btn.sec{background:#e9e2f7;color:var(--p)}
.btn.ghost{background:transparent;color:var(--p);border:2px solid var(--p)}
.btn.danger{background:#fde8ec;color:var(--ko)}
.btn.good{background:var(--ok)}
.btn.sm{width:auto;padding:8px 12px;font-size:14px;margin-top:0}
.btn:disabled{opacity:.5;cursor:not-allowed}
.err{color:var(--ko);min-height:1.2em;margin:8px 0 0;font-weight:600}
.muted{color:var(--mut);font-size:14px}
.dark .muted{color:rgba(255,255,255,.75)}
.link{display:block;text-align:center;margin-top:14px;color:var(--p);font-weight:600}
.dark .link{color:#fff}
.center{text-align:center}
.big{font-size:44px;font-weight:800;margin:6px 0}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#1f1633;color:#fff;padding:12px 18px;border-radius:12px;opacity:0;pointer-events:none;transition:.25s;z-index:99;max-width:90%}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Joueur */
.timerbar{height:10px;background:rgba(255,255,255,.25);border-radius:6px;overflow:hidden;margin:6px 0 18px}
.timerbar>i{display:block;height:100%;background:#fff;width:100%;transition:width .2s linear}
.choices{display:grid;gap:12px}
.choice{display:flex;align-items:center;gap:12px;padding:18px 16px;border:0;border-radius:14px;color:#fff;font:inherit;font-size:18px;font-weight:700;text-align:left;cursor:pointer;min-height:76px}
.choice:active{transform:scale(.98)}
.c0{background:var(--c0)}.c1{background:var(--c1)}.c2{background:var(--c2)}.c3{background:var(--c3)}
.shape{font-size:26px;width:34px;text-align:center;flex:none}
.result{border-radius:16px;padding:24px;text-align:center}
.result.ok{background:var(--ok)}.result.ko{background:var(--ko)}
.result .big{font-size:40px}
.pill{display:inline-block;background:rgba(255,255,255,.18);padding:6px 14px;border-radius:999px;font-weight:700}

/* Projection (host) */
.hwrap{max-width:1200px;margin:0 auto;padding:24px}
.pinbig{font-size:clamp(56px,13vw,150px);font-weight:900;letter-spacing:8px;line-height:1}
.url{font-size:clamp(20px,3.5vw,36px);font-weight:700}
.lobby-grid{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
.qr img{width:min(240px,30vw);background:#fff;padding:8px;border-radius:12px;image-rendering:pixelated}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.chip{background:rgba(255,255,255,.18);padding:8px 14px;border-radius:999px;font-weight:700;font-size:18px}
.chip button{margin-left:8px;background:none;border:0;color:#fff;font-size:18px;cursor:pointer;opacity:.7}
.qtext{font-size:clamp(24px,4vw,44px);font-weight:800;margin:10px 0 18px}
.qhead{display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:20px}
.qtime{font-size:44px;font-weight:900}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tile{position:relative;padding:22px;border-radius:14px;font-size:clamp(18px,2.6vw,30px);font-weight:700;display:flex;align-items:center;gap:12px;color:#fff}
.tile.dim{opacity:.3}
.tile.good{outline:6px solid #fff}
.tile .cnt{margin-left:auto;background:rgba(0,0,0,.28);padding:2px 12px;border-radius:999px}
.lb-row{position:relative;display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:12px;background:rgba(255,255,255,.12);margin-bottom:10px;font-size:clamp(18px,2.6vw,28px);font-weight:700;overflow:hidden}
.lb-row>i{position:absolute;left:0;top:0;bottom:0;background:rgba(255,255,255,.16);z-index:0}
.lb-row>span{position:relative;z-index:1}
.lb-row .nm{flex:1}
.podium{display:flex;align-items:flex-end;justify-content:center;gap:14px;margin:24px 0}
.pod{flex:1;max-width:260px;text-align:center;border-radius:14px 14px 0 0;padding:14px 8px;font-weight:800}
.pod .nm{font-size:clamp(18px,3vw,30px);word-break:break-word}
.pod .sc{font-size:clamp(16px,2.4vw,24px);opacity:.9}
.pod.p1{background:#d89e00;height:260px}.pod.p2{background:#7a8794;height:200px}.pod.p3{background:#a0612b;height:160px}
.medal{font-size:44px}

/* Teacher / admin */
.top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}
.qcard{background:#fff;border-radius:14px;padding:16px;margin-bottom:12px;box-shadow:0 2px 10px rgba(70,23,143,.1)}
.qc-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;margin-bottom:6px}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.b-wait{background:#fff1d6;color:#8a5a00}.b-ok{background:#dff3d8;color:#1f6b0b}.b-live{background:#dbe9ff;color:#0e4a9a}.b-done{background:#e8e4f0;color:#5c5470}
.qc-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.qc-actions .btn{margin-top:0;width:auto}
.pinline{font-size:26px;font-weight:900;letter-spacing:4px;color:var(--p)}
.idline code{background:#f0ebf9;padding:2px 6px;border-radius:6px;font-size:13px}
.eq{background:#fff;border-radius:14px;padding:14px;margin-bottom:12px;box-shadow:0 2px 10px rgba(70,23,143,.1)}
.eq-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.ch{display:flex;align-items:center;gap:8px;margin-top:8px}
.ch input[type=radio]{width:22px;height:22px;flex:none;accent-color:var(--p2)}
.shape-s{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;color:#fff;flex:none;font-size:16px}
.warn{background:#fff1d6;color:#6b4500;border-radius:12px;padding:12px 14px;margin:10px 0;font-size:14px}
.warn ul{margin:6px 0 0;padding-left:18px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:12px 0}
.stat{background:#fff;border-radius:14px;padding:14px;text-align:center;box-shadow:0 2px 10px rgba(70,23,143,.1)}
.stat b{display:block;font-size:26px;color:var(--p)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.tab{padding:8px 14px;border-radius:999px;border:2px solid var(--p);background:transparent;color:var(--p);font:inherit;font-weight:700;cursor:pointer}
.tab.on{background:var(--p);color:#fff}
@media (max-width:640px){.tiles{grid-template-columns:1fr}.lobby-grid{grid-template-columns:1fr}.qr{text-align:center}.qr img{width:200px}}