@font-face{font-family:Bravura;src:url(/fonts/Bravura.woff2) format("woff2");font-display:block}:root{--bg: #1a1a2e;--surface: #24243e;--surface-2: #2e2e50;--ink: #f4f4fb;--muted: #a6a6c8;--accent: #6c8cff;--accent-strong: #8aa2ff;--staff-line: #c9c9e6;--hit: 44px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overscroll-behavior:none}.app{max-width:900px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;gap:12px;padding:max(12px,env(safe-area-inset-top)) 6px max(12px,env(safe-area-inset-bottom))}.app-header h1{margin:4px 0 0;font-size:1.1rem;font-weight:600;letter-spacing:.04em;color:var(--muted);text-align:center}.staff-scroll{background:var(--surface);border-radius:16px;overflow-y:auto;max-height:52vh;display:flex;justify-content:center;touch-action:pan-y;padding:4px 2px}.staff{display:block;width:100%;height:auto;cursor:pointer}.staff-line,.ledger-line{stroke:var(--staff-line);stroke-width:2.4}.glyph{fill:var(--ink);font-family:Bravura;-webkit-user-select:none;user-select:none}.note-glyph,.note-accidental-glyph{fill:var(--accent-strong)}.controls{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:center}.control-group{display:inline-flex;align-items:center;gap:6px}button{font:inherit;color:var(--ink);background:var(--surface-2);border:none;border-radius:12px;cursor:pointer;touch-action:manipulation;transition:transform .06s ease,background .12s ease,box-shadow .12s ease}button:active{transform:scale(.96)}.seg{min-height:var(--hit);padding:0 16px;font-weight:600}.seg.active{background:var(--accent)}.round{min-width:var(--hit);min-height:var(--hit);padding:0 12px;font-size:1.2rem;display:inline-flex;align-items:center;justify-content:center}.round.active{background:var(--accent)}.round.subtle{background:transparent;color:var(--muted);border:1px solid var(--surface-2)}.round:disabled{opacity:.4;cursor:default}.keysig-readout{min-width:3ch;text-align:center;font-variant-numeric:tabular-nums;color:var(--muted)}.play-button{display:flex;align-items:baseline;justify-content:center;gap:14px;width:100%;min-height:76px;padding:12px;border-radius:18px;background:var(--accent);font-weight:700}.play-button:active{transform:scale(.98)}.play-button.playing{background:var(--accent-strong);animation:play-pulse 1.1s ease-in-out infinite}@keyframes play-pulse{0%,to{box-shadow:0 0 #8aa2ff59}50%{box-shadow:0 0 0 8px #8aa2ff00}}.play-icon{font-size:1.6rem}.play-note{font-size:2rem;letter-spacing:.02em}.play-hz{font-size:1rem;color:#ffffffbf;font-variant-numeric:tabular-nums}.settings{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:center;padding:4px 0 8px;color:var(--muted)}.setting{display:inline-flex;align-items:center;gap:10px}.setting-label{font-size:.9rem}.stepper{display:inline-flex;align-items:center;gap:6px}.stepper-value{min-width:6ch;text-align:center;color:var(--ink);font-variant-numeric:tabular-nums}.toggle input{width:28px;height:28px;accent-color:var(--accent)}