:root{--bg:#0d1526;--panel:#172238;--text:#f5f7fb;--muted:#aeb9ce;--accent:#6ea8fe;--good:#4ade80;--bad:#fb7185;--line:#2a3853}
*{box-sizing:border-box} body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f3f5f8;color:#182033} a{color:#2357c6;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px}.card{background:white;border-radius:16px;padding:20px;box-shadow:0 3px 18px #00000012;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.btn{display:inline-block;border:0;border-radius:10px;padding:11px 16px;background:#255fd2;color:white;font-weight:700;cursor:pointer}.btn.secondary{background:#e8edf6;color:#21314e}.btn.danger{background:#c7374f}.btn.good{background:#238f54}.btn:disabled{opacity:.45;cursor:not-allowed}input,textarea,select{width:100%;padding:11px;border:1px solid #ccd4e0;border-radius:9px;font:inherit}label{font-weight:700;display:block;margin:10px 0 6px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.muted{color:#68758b}.question-card{border-left:5px solid #255fd2}.choice-row{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;margin:8px 0}.choice-row input[type=checkbox]{width:auto}.badge{padding:5px 9px;border-radius:999px;background:#e8edf6;font-size:.85rem}.preview-bg{height:120px;border-radius:12px;background-size:cover;background-position:center;border:1px solid #ddd}
.live{min-height:100vh;background:var(--bg);color:var(--text);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.live-bg{position:absolute;inset:0;background-size:cover;background-position:center}.live-bg::after{content:"";position:absolute;inset:0;background:#07101fc7}.stage{position:relative;z-index:1;width:min(1100px,94vw);text-align:center;padding:30px}.stage h1{font-size:clamp(2rem,5vw,5rem);margin:.2em 0}.stage h2{font-size:clamp(1.5rem,3.5vw,3.3rem);margin:.4em 0}.stage p{font-size:clamp(1rem,2vw,1.6rem)}.qr{width:min(280px,55vw);background:#fff;padding:12px;border-radius:16px}.big-number{font-size:clamp(2rem,5vw,4rem);font-weight:900}.choices-display{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin-top:25px}.choice-box{background:#ffffff18;border:2px solid #ffffff28;border-radius:15px;padding:18px;font-size:1.25rem}.result-row{display:grid;grid-template-columns:minmax(140px,1fr) 3fr 90px;gap:12px;align-items:center;text-align:left;margin:12px 0}.bar{height:30px;background:#ffffff22;border-radius:9px;overflow:hidden}.bar>div{height:100%;background:#79a7ff}.result-row.correct .bar>div{background:var(--good)}.result-row.correct .result-label{font-weight:900}.mobile{min-height:100vh;background:#f4f7fb;padding:18px}.mobile-inner{max-width:600px;margin:0 auto}.mobile .option{display:flex;gap:12px;align-items:center;background:white;border:2px solid #d8e0ec;padding:16px;border-radius:14px;margin:10px 0;font-weight:650}.mobile .option input{width:auto;transform:scale(1.4)}.mobile .submit{width:100%;padding:16px;font-size:1.1rem;margin-top:14px}.status-pill{display:inline-block;background:#e5ebf6;border-radius:999px;padding:7px 11px;font-weight:700}.control-grid{display:grid;grid-template-columns:1fr 320px;gap:18px}@media(max-width:800px){.control-grid{grid-template-columns:1fr}.result-row{grid-template-columns:1fr}.choice-row{grid-template-columns:auto 1fr}.choice-row form{grid-column:2}}


/* Lobby QuizLive */
.live.lobby-mode .live-bg::after{
    background:rgba(7,16,31,.28);
}

.lobby-panel{
    display:inline-block;
    width:min(760px,92vw);
    padding:28px 38px;
    background:rgba(7,16,31,.55);
    border:1px solid rgba(255,255,255,.18);
    border-radius:24px;
    box-shadow:0 18px 60px rgba(0,0,0,.25);
    backdrop-filter:blur(3px);
    -webkit-backdrop-filter:blur(3px);
}

.lobby-panel .qr{
    background:#fff;
    padding:12px;
    border-radius:16px;
}

@media(max-width:700px){
    .lobby-panel{
        padding:22px 18px;
    }
}