:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light dark;--bg: #fafafa;--fg: #1a1a1a;--muted: #6a6a6a;--card: #ffffff;--border: #d8d8d8;--primary: #2c6cff;--primary-hover: #1d5ce0;--ok: #1c7c2f;--ok-bg: #d9f7d9;--ko: #b51a1a;--ko-bg: #fbd4d4}@media (prefers-color-scheme: dark){:root{--bg: #161616;--fg: #eeeeee;--muted: #9a9a9a;--card: #232323;--border: #3a3a3a;--ok-bg: #1f4d2a;--ko-bg: #5a1f1f}}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--fg);display:flex;justify-content:center}#app{width:100%;max-width:760px;padding:24px}.screen{text-align:center}h1{margin:8px 0 4px;font-size:28px}.muted{color:var(--muted)}.hint{color:var(--muted);font-size:13px;margin-top:16px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:14px}.progress{font-variant-numeric:tabular-nums;font-weight:600}.counts{display:flex;gap:14px;font-variant-numeric:tabular-nums}.ok{color:var(--ok);font-weight:600}.ko{color:var(--ko);font-weight:600}.staff-container{display:flex;justify-content:center;align-items:center;margin:16px 0 24px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:14px;transition:background .15s,border-color .15s;min-height:200px}.staff-container svg{width:100%;max-width:300px;height:auto;display:block}.staff-container.staff-correct{background:var(--ok-bg);border-color:var(--ok)}.staff-container.staff-wrong{background:var(--ko-bg);border-color:var(--ko)}.buttons{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}.note-btn{padding:18px 6px;font-size:18px;font-weight:600;border:2px solid var(--border);border-radius:10px;background:var(--card);color:var(--fg);cursor:pointer;transition:transform .06s,background .1s,border-color .1s;font-family:inherit}.note-btn:hover:not(:disabled){background:var(--bg);border-color:var(--primary)}.note-btn:active:not(:disabled){transform:scale(.96)}.note-btn:disabled{cursor:default;opacity:.85}.note-btn.btn-correct{background:var(--ok-bg);border-color:var(--ok);color:var(--ok)}.note-btn.btn-wrong{background:var(--ko-bg);border-color:var(--ko);color:var(--ko)}.setup{display:flex;flex-direction:column;gap:18px;align-items:stretch;max-width:380px;margin:28px auto}.setup label{display:flex;flex-direction:column;gap:6px;text-align:left}.setup label span{font-size:13px;color:var(--muted)}.setup select{padding:10px 12px;font-size:15px;border-radius:8px;border:1px solid var(--border);background:var(--card);color:var(--fg);font-family:inherit}button.primary{padding:14px 32px;font-size:17px;background:var(--primary);color:#fff;border:none;border-radius:10px;cursor:pointer;font-weight:600;font-family:inherit}button.primary:hover{background:var(--primary-hover)}button.ghost{padding:6px 12px;font-size:13px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--fg);cursor:pointer;font-family:inherit}button.ghost:hover{background:var(--card)}.results{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:24px 0}.stat{padding:18px 12px;background:var(--card);border:1px solid var(--border);border-radius:12px}.stat-value{font-size:28px;font-weight:700;font-variant-numeric:tabular-nums}.stat-value .unit{font-size:16px;font-weight:500;color:var(--muted)}.stat-label{font-size:12px;color:var(--muted);margin-top:4px}.breakdown{margin:16px auto 24px;border-collapse:collapse;width:100%;max-width:520px;font-variant-numeric:tabular-nums}.breakdown th,.breakdown td{padding:8px 12px;text-align:center;border-bottom:1px solid var(--border)}.breakdown th{font-weight:600;color:var(--muted);font-size:13px}.breakdown td:first-child,.breakdown th:first-child{text-align:left}