:root{--ink: #1f2440;--ink-2: #4a5073;--muted: #7a7f99;--paper: #faf7f2;--card: #ffffff;--line: #e7e2d8;--accent: #e2763a;--accent-ink: #b9531c;--teal: #2f6f73;--ok: #2e9e5b;--bad: #d64545;--hint: #f2b84b;--radius: 14px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.app{max-width:760px;margin:0 auto;padding:20px 16px 48px}.muted{color:var(--muted)}.small{font-size:.875rem}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 1px 2px #1f24400a}hr{border:none;border-top:1px solid var(--line);margin:20px 0}.brand{display:flex;gap:14px;align-items:center;margin-bottom:20px}.brand h1{margin:0;font-size:1.75rem;letter-spacing:-.02em}.brand p{margin:2px 0 0}.logo{width:52px;height:52px;border-radius:14px;background:var(--ink);color:var(--accent);display:grid;place-items:center;font-size:30px;font-weight:700}.tabs{display:flex;gap:4px;margin-bottom:12px}.tabs button{flex:1;padding:10px 12px;border:none;background:transparent;border-radius:10px;font-weight:600;color:var(--ink-2)}.tabs button.on{background:var(--ink);color:#fff}.seg{display:flex;flex-wrap:wrap;gap:6px}.seg button{padding:8px 14px;border:1px solid var(--line);background:var(--paper);border-radius:999px;font-weight:500}.seg button.on{background:var(--teal);border-color:var(--teal);color:#fff}.btn{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:12px 20px;border-radius:12px;border:2px solid transparent;font-weight:700;min-width:120px}.btn small{font-weight:500;font-size:.75rem;opacity:.85}.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover:not(:disabled){background:var(--accent-ink)}.btn.secondary{background:var(--ink);color:#fff}.btn.outline{background:transparent;border-color:var(--ink)}.btn.danger{background:transparent;border-color:var(--bad);color:var(--bad)}.btn:disabled{opacity:.45}.ghost-btn{border:none;background:transparent;font-size:1.25rem;padding:6px 10px;border-radius:8px;color:var(--ink-2)}.ghost-btn:hover{background:var(--line)}.link-btn{border:none;background:none;color:var(--teal);font-weight:600;text-decoration:underline;padding:4px}.level-grid{display:grid;gap:10px;margin-top:12px}.level-card{border:1px solid var(--line);border-radius:12px;background:var(--paper);overflow:hidden}.level-card.open{border-color:var(--teal)}.level-card.locked{opacity:.55}.level-main{width:100%;display:flex;align-items:center;gap:14px;padding:12px 14px;border:none;background:transparent;text-align:left}.level-num{width:38px;height:38px;flex:none;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700}.locked .level-num{background:var(--muted)}.level-text{flex:1;display:flex;flex-direction:column;min-width:0}.level-name{font-weight:700}.level-notes{font-size:.8rem;color:var(--muted)}.level-actions{display:flex;gap:10px;padding:0 14px 14px;flex-wrap:wrap}.level-actions .btn{flex:1}.stars{display:inline-flex;gap:1px}.star{color:#d9d4c7}.star.on{color:var(--hint)}.stars-lg{font-size:2.6rem;margin:6px 0}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field-label{font-weight:600;font-size:.9rem}.field input,.field select{padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.range-row{display:flex;gap:10px;align-items:center}.range-row select{flex:1;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.check{display:flex;gap:10px;align-items:center;margin-bottom:12px}.check input{width:18px;height:18px;accent-color:var(--teal)}.drill-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}.banner{background:#eaf3f3;border:1px solid #bcd9da;color:var(--teal);padding:10px 14px;border-radius:10px;margin-bottom:12px;font-weight:600}.game-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}.game-title{flex:1;display:flex;align-items:center;gap:8px;min-width:0;font-weight:600}.mode-pill{flex:none;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;padding:3px 8px;border-radius:999px;font-weight:700}.mode-pill.practice{background:#eaf3f3;color:var(--teal)}.mode-pill.challenge{background:#fbe9df;color:var(--accent-ink)}.game-stats{display:flex;gap:12px;font-variant-numeric:tabular-nums}.stat{color:var(--ink-2)}.streak{color:var(--accent-ink);font-weight:700}.progress{height:6px;background:var(--line);border-radius:999px;overflow:hidden;margin-bottom:14px}.progress-bar{height:100%;background:var(--accent);transition:width .25s ease}.staff-card{display:flex;flex-direction:column;align-items:center;padding:12px 16px}.staff{width:100%;max-width:440px}.staff-type-grand{max-width:330px}.staff-wrong{animation:shake .3s}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.hint-line{min-height:1.5em;color:var(--ink-2);font-weight:500;text-align:center}.input-switch{display:flex;justify-content:center;gap:4px;margin:14px 0 10px}.input-switch button{border:1px solid var(--line);background:var(--card);padding:6px 12px;border-radius:999px;font-size:.85rem}.input-switch button.on{background:var(--ink);color:#fff;border-color:var(--ink)}.piano-scroll{overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}.piano{position:relative;display:flex;height:170px;-webkit-user-select:none;user-select:none;touch-action:manipulation}.key{border:none;padding:0;transition:background .08s}.key.white{flex:1;min-width:30px;background:#fff;border:1px solid #c9c4b8;border-radius:0 0 8px 8px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px}.key.white+.key.white{border-left:none}.key.white:active:not(:disabled){background:#f0ece4}.key.black{position:absolute;top:0;height:62%;background:#23263a;border-radius:0 0 6px 6px;z-index:2;box-shadow:inset 0 -4px #ffffff14}.key.black:active:not(:disabled){background:#3c4060}.key:disabled{cursor:default}.key-label{font-size:.7rem;color:var(--muted);font-weight:600;pointer-events:none}.key.key-correct{background:var(--ok)!important}.key.key-wrong{background:var(--bad)!important}.key.key-hint{background:var(--hint)!important}.key.key-correct .key-label,.key.key-wrong .key-label{color:#fff}.names{display:flex;flex-direction:column;gap:10px;align-items:center}.acc-row{display:flex;gap:6px}.acc{width:52px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--card);font-size:1.3rem}.acc.on{background:var(--teal);color:#fff;border-color:var(--teal)}.name-row{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;width:100%}.name{height:64px;border-radius:12px;border:1px solid var(--line);background:var(--card);font-size:1.25rem;font-weight:700;box-shadow:0 2px 0 var(--line)}.name:active:not(:disabled){transform:translateY(1px);box-shadow:none}.name.key-correct{background:var(--ok);color:#fff;border-color:var(--ok)}.name.key-wrong{background:var(--bad);color:#fff;border-color:var(--bad)}.name.key-hint{background:var(--hint);border-color:var(--hint)}.kbd-tip{text-align:center;color:var(--muted);font-size:.8rem}.results{text-align:center;display:flex;flex-direction:column;align-items:center}.results h2{margin:4px 0;font-size:1.8rem}.badge{background:#fbe9df;color:var(--accent-ink);padding:6px 12px;border-radius:999px;font-weight:700;margin:4px 0}.result-stats{display:flex;gap:28px;margin:18px 0;flex-wrap:wrap;justify-content:center}.result-stats div{display:flex;flex-direction:column}.result-stats b{font-size:1.8rem;font-variant-numeric:tabular-nums}.result-stats span{color:var(--muted);font-size:.85rem}.trouble{width:100%;text-align:left;background:var(--paper);border-radius:12px;padding:12px 16px;margin-bottom:14px}.trouble h3{margin:0 0 6px;font-size:1rem}.trouble ul{margin:0;padding-left:18px}.trouble li{margin:4px 0}.results .drill-actions{justify-content:center}@media (max-width: 520px){.name-row{gap:5px}.name{height:56px;font-size:1rem}.btn{min-width:0;flex:1}.piano{height:150px}}.midi-toggle{border:1px dashed var(--muted);background:var(--card);padding:6px 12px;border-radius:999px;font-size:.85rem;margin-left:8px}.midi-toggle.on{background:var(--teal);color:#fff;border:1px solid var(--teal)}.midi-status{text-align:center;font-size:.82rem;color:var(--muted);margin:0 0 10px}.settings .midi-status{text-align:left}.midi-status.has-device{color:var(--ok);font-weight:600}.midi-status.midi-denied,.midi-status.midi-unsupported{color:var(--bad)}.mic-status{display:flex;align-items:center;justify-content:center;gap:10px;font-size:.82rem;color:var(--muted);margin:0 0 10px;min-height:1.4em}.settings .mic-status{justify-content:flex-start}.mic-status.mic-ready{color:var(--teal);font-weight:600}.mic-status.mic-denied,.mic-status.mic-unsupported{color:var(--bad)}.mic-meter{width:80px;height:8px;border-radius:999px;background:var(--line);overflow:hidden;flex:none}.mic-meter span{display:block;height:100%;background:var(--ok);transition:width .08s linear}