:root{--bg: #14110b;--panel: #221c12;--line: #3a3120;--ink: #f4efe6;--dim: #b6a986;--accent: #c0843a;--accent2: #e0a85a;--good: #2f6b3a;--good-ink: #b6e7bd;--bad: #6b2f2f;--bad-ink: #f0b8b8;--chip: #2c2516}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#221a10,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:540px;padding:12px 12px 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:28px;letter-spacing:5px;font-weight:800;color:var(--accent2)}.sub{margin:3px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:10px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 13px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#1a1206}.seg button:disabled{cursor:default;opacity:.85}.seg.wide{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;width:100%;border-radius:10px;margin:4px 0 2px}.seg.wide button{padding:11px 6px;font-weight:700}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:9px 18px;border-radius:999px;font:700 14px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);color:#1a1206;border-color:var(--accent)}.btn.primary:hover{background:var(--accent2)}.hidden{display:none!important}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0}.readout{background:#0e0b06;border:1px solid var(--line);border-radius:8px;padding:5px 14px;font:800 16px ui-monospace,monospace;color:var(--accent2);min-width:92px;text-align:center}.readout span{color:var(--dim);font-size:10px;display:block;font-weight:600;letter-spacing:.5px}.stage{position:relative}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.setlabel{font-size:13px;color:var(--accent2);font-weight:700;letter-spacing:.5px;margin-bottom:8px}.dataset{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}.chip{background:var(--chip);border:1px solid var(--line);border-radius:7px;padding:7px 11px;font:800 16px ui-monospace,monospace;color:var(--ink);min-width:40px;text-align:center}.claim{margin:14px 0 10px;padding:11px 13px;background:#1a140b;border-left:3px solid var(--accent);border-radius:6px;font-size:15px;line-height:1.45;color:var(--ink);font-style:italic}.q{font-size:13px;color:var(--dim);margin:12px 0 2px}.q b{color:var(--accent2);font-style:normal}.actions{display:flex;justify-content:center;margin-top:14px}.feedback{margin-top:12px;font-size:13px;line-height:1.5;min-height:2px}.feedback.good{color:var(--good-ink)}.feedback.bad{color:var(--bad-ink)}.feedback>div:first-child{font-weight:800;letter-spacing:1px;margin-bottom:4px}.feedback .ex{color:var(--ink);font-weight:500}.feedback .ex b{color:var(--accent2)}.feedback .ex.dim,.dim{color:var(--dim)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0e0b06d6;border-radius:14px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px 28px;text-align:center;max-width:320px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent2)}.card p{margin:8px 0;color:var(--ink);font-size:15px}.card .row{display:flex;gap:8px;justify-content:center;margin-top:16px}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:14px;line-height:1.6}.hint b{color:var(--accent2)}