:root{
  --bg:#0d1636;
  --bg2:#142049;
  --card:#18275c;
  --card2:#213374;
  --text:#f6f5ff;
  --muted:#9fb0e6;
  --sun:#ffc933;
  --coral:#ff6b57;
  --mint:#3ee0b0;
  --sky:#5cb8ff;
  --ink:#0d1636;
  --radius:20px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Cairo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 420px at 50% -120px, rgba(92,184,255,.22), transparent 70%),
    radial-gradient(rgba(255,255,255,.055) 1.5px, transparent 1.5px);
  background-size:auto, 26px 26px;
  min-height:100vh;
  line-height:1.5;
}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px}
h1,h2,h3,p{margin:0}

/* ---------- top bar ---------- */
.top{max-width:640px;margin:0 auto;padding:14px 16px 6px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem}
.brand svg{width:34px;height:34px;flex:none}
.top-actions{display:flex;gap:8px}
.chip{background:rgba(255,255,255,.09);border:2px solid rgba(255,255,255,.1);border-radius:999px;padding:4px 14px;font-weight:600;font-size:.9rem}
.chip:hover{background:rgba(255,255,255,.16)}
.demo{max-width:608px;margin:6px auto 0;background:rgba(255,201,51,.14);border:2px dashed rgba(255,201,51,.6);color:var(--sun);border-radius:14px;padding:8px 14px;font-size:.85rem;font-weight:600}
@media (min-width:640px){.demo{margin-inline:auto}}

/* ---------- layout ---------- */
.view{max-width:640px;margin:0 auto;padding:12px 16px 120px;display:grid;gap:16px}
.card{background:var(--card);border-radius:var(--radius);padding:18px;border:2px solid rgba(255,255,255,.07);box-shadow:0 6px 0 rgba(0,0,0,.28)}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---------- bottom nav ---------- */
.nav{position:fixed;inset-inline:0;bottom:0;display:flex;justify-content:center;gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));background:rgba(9,15,40,.94);backdrop-filter:blur(8px);border-top:2px solid rgba(255,255,255,.08);z-index:20}
.nav button{flex:1;max-width:150px;display:grid;justify-items:center;gap:0;padding:6px 4px;border:0;border-radius:14px;background:transparent;color:var(--muted);font-weight:800;font-size:.8rem}
.nav button .ic{font-size:1.4rem;line-height:1.3}
.nav button.on{background:var(--sun);color:var(--ink);box-shadow:0 3px 0 #b48500}

/* ---------- buttons ---------- */
.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border:0;border-radius:16px;padding:12px 22px;font-weight:900;font-size:1.05rem;background:var(--sun);color:var(--ink);box-shadow:0 5px 0 #b48500;transition:transform .08s,box-shadow .08s}
.btn:hover{filter:brightness(1.05)}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 #b48500}
.btn.block{width:100%}
.btn:disabled{opacity:.6}

/* ---------- auth ---------- */
.auth{max-width:420px;margin:0 auto;padding:12px 16px 40px;display:grid;gap:18px}
.auth .hero{text-align:center;padding-top:18px}
.auth .hero svg{width:84px;height:84px;filter:drop-shadow(0 8px 0 rgba(0,0,0,.28))}
.auth h1{font-size:2.4rem;font-weight:900;line-height:1.15;margin-top:10px}
.auth .tagline{color:var(--muted);font-weight:600}
.seg{display:grid;grid-template-columns:1fr 1fr;background:rgba(0,0,0,.25);border-radius:14px;padding:4px;gap:4px}
.seg button,.tab{border:0;background:transparent;border-radius:11px;padding:8px;font-weight:800;color:var(--muted)}
.seg button.on,.tab.on{background:var(--sky);color:var(--ink)}
label.f{display:grid;gap:4px;font-weight:600;color:var(--muted);font-size:.9rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],textarea{width:100%;background:rgba(0,0,0,.28);border:2px solid rgba(255,255,255,.12);border-radius:14px;padding:11px 14px;color:var(--text)}
input::placeholder{color:#6f81bb}
form.stack{display:grid;gap:12px}
.msg{background:rgba(62,224,176,.15);border:2px solid rgba(62,224,176,.5);color:var(--mint);border-radius:12px;padding:8px 12px;font-weight:600;font-size:.9rem}
.langrow{display:flex;justify-content:center}

/* ---------- stats ---------- */
.me{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}
.me .who{display:grid;gap:6px}
.me .name{font-weight:900;font-size:1.2rem;line-height:1.2;overflow-wrap:anywhere}
.lvl{display:flex;align-items:center;gap:10px}
.lvl .pill{background:var(--sky);color:var(--ink);font-weight:900;font-size:.8rem;border-radius:999px;padding:1px 10px;white-space:nowrap}
.bar{flex:1;height:10px;background:rgba(0,0,0,.3);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--mint);border-radius:99px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.stat{background:rgba(0,0,0,.22);border-radius:14px;padding:8px 12px;display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.stat span{color:var(--muted);font-weight:600;font-size:.85rem}
.stat b{font-size:1.3rem;font-weight:900}
.stat.fire b{color:var(--sun)}

/* ---------- question ---------- */
.quest{position:relative;padding-top:30px}
.ribbon{position:absolute;top:-14px;inset-inline-start:16px;background:var(--coral);color:#fff;font-weight:900;padding:3px 16px;border-radius:8px;box-shadow:0 4px 0 rgba(0,0,0,.3);transform:rotate(-2deg)}
html[dir=rtl] .ribbon{transform:rotate(2deg)}
.qtext{font-size:clamp(1.35rem,4.8vw,1.85rem);font-weight:900;line-height:1.4;margin-bottom:16px;overflow-wrap:anywhere}
.timer{height:14px;background:rgba(0,0,0,.32);border-radius:99px;overflow:hidden}
.timer i{display:block;height:100%;width:100%;background:var(--mint);border-radius:99px;transition:width .2s linear,background .3s}
.timer i.low{background:var(--coral)}
.timer-txt{display:flex;justify-content:space-between;color:var(--muted);font-weight:600;font-size:.85rem;margin:6px 2px 14px}
.timer-txt b{color:var(--text)}
.opts{display:grid;gap:10px}
.opt{display:flex;align-items:center;gap:12px;width:100%;text-align:start;background:var(--card2);border:2px solid rgba(255,255,255,.12);border-radius:16px;padding:12px 14px;font-weight:800;font-size:1.05rem;box-shadow:0 4px 0 rgba(0,0,0,.3);transition:transform .08s,box-shadow .08s}
.opt:hover:not(:disabled){border-color:var(--sun)}
.opt:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 rgba(0,0,0,.3)}
.opt .letter{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--sun);color:var(--ink);font-weight:900}
.opt:disabled{cursor:default}
.opt.picked{border-color:var(--sun)}
.opt.correct{background:#1c8a63;border-color:var(--mint)}
.opt.correct .letter{background:var(--mint)}
.opt.wrong{background:#9b3b3b;border-color:var(--coral)}
.opt.wrong .letter{background:var(--coral);color:#fff}
.opt.dim{opacity:.55}
.result{margin-top:16px;border-radius:16px;padding:14px 16px;border:2px solid}
.result.ok{background:rgba(62,224,176,.12);border-color:rgba(62,224,176,.5)}
.result.bad{background:rgba(255,107,87,.12);border-color:rgba(255,107,87,.5)}
.result h2{font-size:1.5rem;font-weight:900}
.breakdown{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:2px}
.breakdown li{display:flex;justify-content:space-between;font-weight:600;color:var(--muted)}
.breakdown li b{color:var(--text)}
.breakdown li.total{border-top:2px dashed rgba(255,255,255,.2);margin-top:4px;padding-top:6px;color:var(--text);font-size:1.15rem;font-weight:900}
.breakdown li.total b{color:var(--sun)}
.next{margin-top:12px;color:var(--muted);font-weight:600}
.next b{color:var(--text);font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
.empty{text-align:center;padding:30px 10px;display:grid;gap:6px}
.empty h2{font-size:1.4rem;font-weight:900}

/* ---------- leaderboard ---------- */
.tabs{display:grid;grid-template-columns:repeat(3,1fr);background:rgba(0,0,0,.25);border-radius:14px;padding:4px;gap:4px}
.lb{display:grid;gap:8px}
.row{display:grid;grid-template-columns:38px 48px 1fr auto;gap:10px;align-items:center;background:var(--card);border-radius:16px;padding:8px 14px 8px 10px;border:2px solid rgba(255,255,255,.06)}
html[dir=rtl] .row{padding:8px 10px 8px 14px}
.row.me{border-color:var(--sun);background:#26357a}
.rank{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:900;background:rgba(0,0,0,.28);color:var(--muted)}
.row.r1 .rank{background:var(--sun);color:var(--ink)}
.row.r2 .rank{background:#cfd8f5;color:var(--ink)}
.row.r3 .rank{background:#e49a5d;color:var(--ink)}
.row .nm{font-weight:800;overflow-wrap:anywhere;line-height:1.25}
.row .pt{font-weight:900;font-size:1.1rem;color:var(--sun);font-variant-numeric:tabular-nums}
.row .pt small{color:var(--muted);font-weight:600;font-size:.7rem;margin-inline-start:3px}

/* ---------- avatar ---------- */
.stage{display:grid;justify-items:center;gap:12px}
.stage svg{filter:drop-shadow(0 8px 0 rgba(0,0,0,.3))}
.picker{display:grid;gap:8px}
.picker h3{font-weight:800;color:var(--muted);font-size:.95rem}
.opts-row{display:flex;flex-wrap:wrap;gap:8px}
.pk{position:relative;width:54px;height:54px;border-radius:14px;border:3px solid rgba(255,255,255,.12);background:rgba(0,0,0,.22);padding:0;display:grid;place-items:center;overflow:hidden}
.pk.on{border-color:var(--sun)}
.pk.locked{opacity:.5}
.pk .sw{width:30px;height:30px;border-radius:50%;border:3px solid rgba(255,255,255,.35)}
.pk .lk{position:absolute;inset:auto 2px 2px auto;background:rgba(0,0,0,.75);border-radius:8px;font-size:.62rem;font-weight:800;padding:0 5px}
html[dir=rtl] .pk .lk{inset:auto auto 2px 2px}

/* ---------- admin ---------- */
.optrow{display:grid;grid-template-columns:auto 1fr 1fr;gap:8px;align-items:center}
.optrow input[type=radio]{width:22px;height:22px;accent-color:var(--mint)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.up{display:grid;gap:8px}
.up .it{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;background:rgba(0,0,0,.22);border-radius:12px;padding:8px 12px}
.up .it b{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
.up .it span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini{border:0;background:rgba(255,107,87,.2);color:var(--coral);border-radius:10px;padding:2px 10px;font-weight:800}
h2.sec{font-size:1.2rem;font-weight:900;margin-bottom:12px}

/* ---------- toast + confetti ---------- */
.toast{position:fixed;inset-inline:16px;bottom:96px;margin:auto;max-width:420px;background:#fff;color:var(--ink);font-weight:800;border-radius:14px;padding:10px 16px;text-align:center;box-shadow:0 6px 0 rgba(0,0,0,.35);z-index:50;animation:pop .25s ease-out}
@keyframes pop{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}
.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:40}
.confetti i{position:absolute;top:-16px;width:9px;height:15px;border-radius:2px;animation:fall 2s linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(720deg)}}
@media (prefers-reduced-motion:reduce){.confetti{display:none}.toast{animation:none}.timer i{transition:none}}

@media (max-width:380px){.stats{grid-template-columns:1fr}.two{grid-template-columns:1fr}.optrow{grid-template-columns:auto 1fr}.optrow input[type=text]:nth-of-type(2){grid-column:2}}