:root{--bg: #14110d;--panel: #251f16;--line: #3a3122;--ink: #f4eee2;--dim: #c2b394;--accent: #b0843a;--ok: #6fce8e;--bad: #e0654a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#221c12,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:600px;padding:12px 12px 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:26px;letter-spacing:4px;font-weight:800;color:var(--accent)}.sub{margin:2px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:9px 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:#1d1408}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.status{text-align:center;min-height:20px;margin:6px 0;color:var(--dim);font-size:13px;font-weight:600}.stage{position:relative;display:flex;justify-content:center}canvas{background:#0f0c08;border:1px solid var(--line);border-radius:14px;touch-action:manipulation;cursor:pointer}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:10px;line-height:1.5}.kbd{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:1px 7px;font-weight:700;color:var(--ink)}.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#0f0c08db;border-radius:14px;text-align:center;padding:18px}.overlay.hidden{display:none}.overlay .big{font-size:44px;font-weight:800;color:var(--accent);margin:0}.overlay .lbl{color:var(--dim);font-size:13px;margin:2px 0 14px}.overlay .row{color:var(--ink);font-size:14px;margin:3px 0}