:root{
  --bg1:#241c08; --bg2:#160f04; --card:#33270f; --line:#6a5526;
  --ink:#fff5d9; --muted:#d9c589;
  --accent:#ffcc4d; --accent2:#ff8a3d; --pf:#35e08c; --gd:#4fa8ff; --bad:#ff5c7a;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;height:100%}
body{
  font-family:"Segoe UI",system-ui,Roboto,sans-serif;color:var(--ink);
  background:radial-gradient(700px 420px at 20% -10%,#5a4a12 0%,transparent 60%),
             linear-gradient(180deg,var(--bg1),var(--bg2));
  min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;user-select:none;overflow-x:hidden;
}
.top{width:min(480px,100%);display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;flex-wrap:wrap}
.tt{font-weight:900;font-size:1.15rem;letter-spacing:.2px}
.stats{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.stats span{background:var(--card);border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:.76rem;color:var(--muted)}
.stats b{color:var(--accent)}
.btns{display:flex;gap:8px}
.btns button{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:10px;width:44px;height:44px;font-size:1rem;cursor:pointer}
.btns button:hover{border-color:var(--accent)}
.stagetab{width:min(480px,100%)}
.stage{position:relative}
.panel{background:#1c1507;border:1px solid var(--line);border-radius:18px;padding:18px 14px;min-height:500px;display:flex;flex-direction:column}
.qmeta{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;color:var(--muted);font-size:.85rem}
.timer{flex:1;margin-left:14px;height:10px;background:#0f0a03;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.ll{background:var(--card);border:1px solid var(--line);color:var(--accent);border-radius:999px;padding:6px 12px;font-size:.78rem;cursor:pointer;font-weight:800;margin-left:10px;transition:.15s;white-space:nowrap}
.ll:hover{border-color:var(--accent);transform:scale(1.06)}
.ll.used{opacity:.35;pointer-events:none;text-decoration:line-through}
#timeBar{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .1s linear}
.q{font-size:1.25rem;font-weight:800;line-height:1.5;margin-bottom:20px;min-height:74px}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.opt{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:12px;padding:14px 10px;
  font-size:.98rem;cursor:pointer;transition:.12s;text-align:center;font-weight:600;min-height:60px;display:flex;align-items:center;justify-content:center}
.opt:active{transform:scale(.96)}
.opt.correct{background:var(--pf);color:#062;border-color:transparent;font-weight:900}
.opt.wrong{background:var(--bad);color:#400;border-color:transparent}
.tip{color:var(--muted);font-size:.82rem;margin-top:16px;line-height:1.5;min-height:20px;text-align:center}
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  background:rgba(12,8,2,.86);border-radius:18px;padding:24px;gap:14px;z-index:5}
.overlay h1{margin:0;font-size:2rem}
.overlay h1 span{color:var(--accent)}
.how{color:var(--muted);font-size:.92rem;line-height:1.6;max-width:380px;margin:0}
.how b{color:var(--ink)}
.big{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#241a00;border:none;
  font-size:1.12rem;font-weight:900;padding:14px 34px;border-radius:999px;cursor:pointer;letter-spacing:.5px}
.big:hover{transform:scale(1.05)}
.tiny{color:var(--muted);font-size:.72rem;margin:0}
.bottombar{color:var(--muted);font-size:.8rem;padding:12px;text-align:center}
.home{position:fixed;right:12px;bottom:8px;color:var(--muted);background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:7px 13px;font-size:.8rem;text-decoration:none;z-index:20}
.home:hover{color:var(--accent)}
html,body{overscroll-behavior:none;touch-action:manipulation}
.stage{cursor:pointer}
@media (max-width:420px){.stats span{padding:4px 8px;font-size:.7rem}.tt{font-size:1rem}.stats{gap:6px}}
@media (orientation:landscape) and (max-height:540px){.bottombar,.home{display:none}}