:root{--bg: #0b0f1a;--panel: #141b2b;--ink: #e6ebf2;--muted: #93a0b4;--accent: #3fb950;--accent2: #3b6fe0}*{box-sizing:border-box}html,body{margin:0;background:radial-gradient(1200px 700px at 50% -10%,#16203a 0%,var(--bg) 60%);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#app{max-width:940px;margin:0 auto;padding:16px 16px 40px}h1{margin:8px 0 2px;font-size:30px;letter-spacing:.5px}h1 .frog{font-size:26px}.sub{margin:0 0 14px;color:var(--muted);font-size:14px}.bar{display:flex;gap:14px;align-items:end;flex-wrap:wrap;margin-bottom:10px}.bar label{display:flex;flex-direction:column;font-size:12px;color:var(--muted);gap:4px}select,button{font:inherit;background:var(--panel);color:var(--ink);border:1px solid #283449;border-radius:8px;padding:8px 10px}button{cursor:pointer}button.primary{background:linear-gradient(180deg,#2f9d4a,#237a39);border-color:#2c7a3f;font-weight:600}button.primary:hover{filter:brightness(1.08)}button:disabled{opacity:.45;cursor:default}.foot kbd{background:#1c2740;border:1px solid #34425e;border-radius:4px;padding:0 5px;font-family:inherit;font-size:11px;color:var(--ink)}.scores{display:flex;gap:18px;flex-wrap:wrap;margin:6px 0 10px;font-size:14px;color:var(--muted)}.scores b{color:var(--ink);font-size:16px}canvas{width:100%;max-width:900px;aspect-ratio:900 / 600;display:block;border-radius:12px;border:1px solid #25324a;background:#0e1320;cursor:crosshair;touch-action:none}#msg{min-height:22px;margin-top:12px;font-size:15px;color:var(--accent)}#msg.show{background:var(--panel);border:1px solid #283449;border-radius:8px;padding:10px 12px}.foot{margin-top:14px;color:var(--muted);font-size:12.5px;line-height:1.6}.foot b{color:var(--ink)}