:root{--bg: #0a0e1a;--panel: #141a2e;--line: #28304a;--accent: #a05aff;--ink: #e9ecf6;--dim: #8f96b5;--gold: #ffd24a;--bad: #ff6b6b}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(1200px 700px at 50% -10%,#1a1430,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:820px;padding:14px 14px 28px}header{text-align:center;margin-bottom:8px}h1{margin:0;font-size:30px;letter-spacing:2px;font-weight:800;color:var(--accent);text-shadow:0 2px 16px rgba(160,90,255,.35)}.sub{margin:2px 0 0;color:var(--dim);font-size:13px}.sub b{color:var(--accent)}.bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content: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:7px 16px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#1a0a30}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:600 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);color:#1a0a30;border-color:var(--accent)}.hud{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:8px 0}.box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:6px 12px;min-width:70px;text-align:center}.box .k{font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.5px}.box .v{font-size:18px;font-weight:700}.box .v.gold{color:var(--gold)}.box .v.purple{color:var(--accent)}.stage{position:relative}canvas{width:100%;height:auto;display:block;border-radius:12px;box-shadow:0 10px 34px #00000080;touch-action:none}.feedback{text-align:center;min-height:22px;margin-top:8px;font-weight:700;color:var(--gold)}.feedback .miss{color:var(--dim);font-weight:600}.feedback .bad{color:var(--bad)}.hint{text-align:center;color:var(--dim);font-size:12.5px;margin-top:6px;line-height:1.5}.hint b{color:var(--ink)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080a16bd;border-radius:12px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:380px}.card h2{margin:0 0 8px;font-size:22px}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .big{font-size:34px;font-weight:800;color:var(--accent);margin:8px 0}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}