:root{--paper:#FFFFFF;--surface:#F3F6FA;--tint:#EDF1F7;--ink:#0D1626;--muted:#5D6E8A;--line:#DFE4EC;--line-2:#C7CFDC;--night:#131D34;--d-ink:#EEF3FC;--d-muted:#93A6C4;--d-line:#31415F;--gold:#E0AC3F;--gold-ink:#8A6412;--gold-dim:#C9A85F;--turq:#17A897;--turq-br:#4FD3BF;--turq-ink:#0E7E72;--bad:#B3261E;--bad-soft:#FBE9E7;--d:"Unbounded","Onest",system-ui,sans-serif;--b:"Onest",system-ui,-apple-system,sans-serif;--m:"JetBrains Mono",ui-monospace,Menlo,monospace}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--b);font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}button{font:inherit;color:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--gold);outline-offset:2px}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.app{display:flex;flex-direction:column;min-height:100dvh;padding-bottom:calc(64px + 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var(--line-2);border-radius:2px;color:var(--muted)}.chip.on{border-color:var(--turq-ink);color:var(--turq-ink)}.chip.live{border-color:var(--gold-ink);color:var(--gold-ink)}.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:15px 18px;border:0;border-radius:3px;background:var(--gold);color:#1a1200;font-family:var(--d);font-weight:700;font-size:16px}.btn[disabled]{opacity:.45}.btn.ghost{background:none;border:1px solid var(--line-2);color:var(--ink);font-weight:600}.btn.dark{background:var(--ink);color:#fff}.qprog{display:flex;gap:3px;margin-bottom:14px}.qprog i{flex:1;height:3px;background:var(--line);border-radius:2px}.qprog i.done{background:var(--turq)}.qprog i.now{background:var(--gold)}.timer{height:4px;background:var(--line);border-radius:2px;overflow:hidden}.timer b{display:block;height:100%;background:var(--turq);transition:width .25s linear}.timer.warn b{background:var(--gold)}.timer.hot b{background:var(--bad)}.qtext{font-family:var(--d);font-weight:700;font-size:21px;line-height:1.25;margin:18px 0 20px}.opts{display:flex;flex-direction:column;gap:10px}.opt{display:flex;align-items:center;gap:12px;width:100%;min-height:58px;padding:12px 14px;border:1px solid var(--line-2);border-radius:3px;background:var(--paper);text-align:left;font-size:16px;line-height:1.3}.opt u{text-decoration:none;font-family:var(--m);font-size:12px;color:var(--muted);flex:0 0 auto;width:14px}.opt[data-state=picked]{border-color:var(--ink);background:var(--surface)}.opt[data-state=right]{border-color:var(--turq-ink);background:#e6f6f3}.opt[data-state=wrong]{border-color:var(--bad);background:var(--bad-soft)}.opt[disabled]{cursor:default}.explain{margin-top:16px;padding:12px 14px;background:var(--tint);border-radius:3px;font-size:14px;color:var(--muted)}.lb{width:100%;border-collapse:collapse;font-size:14px}.lb th{font-family:var(--m);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-align:left;padding:8px 6px;border-bottom:1px solid var(--line-2);font-weight:500}.lb td{padding:9px 6px;border-bottom:1px solid var(--line)}.lb td.n{text-align:right;font-variant-numeric:tabular-nums}.lb tr[data-me="1"] td{background:var(--tint);font-weight:600}.nav{position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--paper);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.nav button{flex:1;background:none;border:0;padding:9px 4px 11px;display:flex;flex-direction:column;align-items:center;gap:3px;font-family:var(--m);font-size:9px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.nav button[data-on="1"]{color:var(--ink)}.nav .dot{width:5px;height:5px;border-radius:50%;background:transparent}.nav button[data-on="1"] .dot{background:var(--gold)}.nav svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6}.notice{padding:12px 14px;border-radius:3px;background:var(--bad-soft);color:var(--bad);font-size:14px}.center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:60vh;text-align:center}.skeleton{background:var(--surface);border-radius:3px;height:14px;animation:sk 1.2s ease-in-out infinite}@keyframes sk{0%,to{opacity:1}50%{opacity:.5}}