:root{--bg: #080c18;--panel: #0f1830;--ink: #d7e3ff;--muted: #7e8db5;--accent: #5fe3a1;--accent2: #ff5d7a;--line: #1c2b4d}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}#app{max-width:720px;margin:0 auto;padding:14px 14px 28px;display:flex;flex-direction:column;gap:12px}header h1{margin:0;font-size:26px;letter-spacing:.5px;background:linear-gradient(90deg,var(--accent),#7cc6ff);-webkit-background-clip:text;background-clip:text;color:transparent}header .sub{margin:4px 0 0;color:var(--muted);font-size:13px}.bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}.seg button{background:transparent;color:var(--muted);border:0;padding:7px 13px;font-size:13px;cursor:pointer}.seg button.active{background:var(--accent);color:#04221a;font-weight:600}.btn{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:9px;padding:7px 14px;font-size:13px;cursor:pointer}.btn:hover{border-color:var(--accent)}.stats{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted)}.stats b{color:var(--ink)}.stage{position:relative;border:1px solid var(--line);border-radius:12px;background:radial-gradient(120% 100% at 50% 0%,#0c1530,#070b16);overflow:hidden}canvas{display:block;width:100%;height:auto;touch-action:none}.overlay{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#060a16d1;text-align:center;padding:16px}.overlay.show{display:flex}.overlay h2{margin:0;font-size:24px}.overlay.win h2{color:var(--accent)}.overlay.lose h2{color:var(--accent2)}.overlay p{margin:0;color:var(--muted);font-size:14px}.help{font-size:12px;color:var(--muted);line-height:1.5}.help kbd{background:var(--panel);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-size:11px;color:var(--ink)}.touchpad{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.touchpad .btn{padding:12px;font-size:15px}