.piano-summary[data-astro-cid-uvgtxgew] p[data-astro-cid-uvgtxgew]{font-size:.9375rem;line-height:1.75;margin:0;color:var(--color-text)}.piano-app[data-astro-cid-uvgtxgew]{display:flex;flex-direction:column;gap:.75rem;padding:1rem .5rem}.piano-controls[data-astro-cid-uvgtxgew]{display:flex;flex-wrap:wrap;gap:.75rem 1.25rem;align-items:center;padding:.75rem 1rem;background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.piano-controls--secondary[data-astro-cid-uvgtxgew]{padding:.625rem 1rem}.piano-ctrl-group[data-astro-cid-uvgtxgew]{display:flex;flex-direction:column;gap:.25rem}.piano-ctrl-group--inline[data-astro-cid-uvgtxgew]{flex-direction:row;align-items:center;gap:.5rem}.piano-ctrl-label[data-astro-cid-uvgtxgew]{font-size:.75rem;font-weight:600;color:var(--color-text-muted);letter-spacing:.02em;text-transform:uppercase;white-space:nowrap}.piano-btn-group[data-astro-cid-uvgtxgew]{display:flex;gap:.25rem;flex-wrap:wrap}.piano-range-btn[data-astro-cid-uvgtxgew]{padding:.375rem .75rem;font-size:.8125rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease;min-height:44px;min-width:56px}.piano-range-btn[data-astro-cid-uvgtxgew]:hover{border-color:var(--color-primary);color:var(--color-primary)}.piano-range-btn--active[data-astro-cid-uvgtxgew],.piano-range-btn[data-astro-cid-uvgtxgew][aria-pressed=true]{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.piano-label-btn[data-astro-cid-uvgtxgew]{padding:.375rem .625rem;font-size:.75rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease;min-height:44px;min-width:48px}.piano-label-btn[data-astro-cid-uvgtxgew]:hover{border-color:var(--color-primary);color:var(--color-primary)}.piano-label-btn--active[data-astro-cid-uvgtxgew],.piano-label-btn[data-astro-cid-uvgtxgew][aria-pressed=true]{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.piano-oct-btn[data-astro-cid-uvgtxgew]{padding:.375rem .625rem;font-size:.8125rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease;min-height:44px}.piano-oct-btn[data-astro-cid-uvgtxgew]:hover{border-color:var(--color-primary);color:var(--color-primary)}.piano-oct-display[data-astro-cid-uvgtxgew]{font-size:.875rem;font-weight:700;color:var(--color-primary);padding:0 .5rem;min-width:52px;text-align:center}.piano-select[data-astro-cid-uvgtxgew]{height:44px;padding:0 .75rem;font-size:.875rem;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;min-width:140px}.piano-select[data-astro-cid-uvgtxgew]:focus{outline:2px solid var(--color-primary);outline-offset:1px}.piano-slider[data-astro-cid-uvgtxgew]{width:100px;accent-color:var(--color-primary);cursor:pointer}.piano-slider-val[data-astro-cid-uvgtxgew]{font-size:.8125rem;font-weight:700;color:var(--color-primary);min-width:28px}.piano-sustain-btn[data-astro-cid-uvgtxgew]{height:44px;padding:0 .875rem;font-size:.8125rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease}.piano-sustain-btn[data-astro-cid-uvgtxgew][aria-pressed=true]{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.piano-chord-checker[data-astro-cid-uvgtxgew]{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;padding:.625rem 1rem;background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.piano-chord-btns[data-astro-cid-uvgtxgew]{display:flex;flex-wrap:wrap;gap:.25rem}.piano-chord-btn[data-astro-cid-uvgtxgew]{min-width:40px;min-height:36px;padding:.25rem .5rem;font-size:.8125rem;font-weight:700;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease}.piano-chord-btn[data-astro-cid-uvgtxgew]:hover{border-color:var(--color-primary);color:var(--color-primary)}.piano-chord-btn[data-astro-cid-uvgtxgew][aria-pressed=true]{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.piano-chord-clear[data-astro-cid-uvgtxgew]{height:36px;padding:0 .75rem;font-size:.75rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:transparent;color:var(--color-text-muted);cursor:pointer;transition:all .15s ease}.piano-chord-clear[data-astro-cid-uvgtxgew]:hover{border-color:var(--color-error);color:var(--color-error)}.piano-rec-bar[data-astro-cid-uvgtxgew]{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;padding:.625rem 1rem;background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.piano-rec-btn[data-astro-cid-uvgtxgew]{display:flex;align-items:center;gap:.375rem;height:44px;padding:0 1rem;font-size:.875rem;font-weight:700;border:1.5px solid var(--color-error);border-radius:var(--radius-sm);background:transparent;color:var(--color-error);cursor:pointer;transition:all .15s ease}.piano-rec-btn[data-astro-cid-uvgtxgew][aria-pressed=true]{background:var(--color-error);color:#fff}.piano-rec-dot[data-astro-cid-uvgtxgew]{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--color-error);transition:background .15s}.piano-rec-btn[data-astro-cid-uvgtxgew][aria-pressed=true] .piano-rec-dot[data-astro-cid-uvgtxgew]{background:#fff;animation:recPulse 1s ease-in-out infinite}@keyframes recPulse{0%,to{opacity:1}50%{opacity:.4}}.piano-play-btn[data-astro-cid-uvgtxgew],.piano-stop-btn[data-astro-cid-uvgtxgew]{height:44px;padding:0 .875rem;font-size:.875rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .15s ease}.piano-play-btn[data-astro-cid-uvgtxgew]:disabled,.piano-stop-btn[data-astro-cid-uvgtxgew]:disabled{opacity:.4;cursor:not-allowed}.piano-play-btn[data-astro-cid-uvgtxgew]:not(:disabled):hover{border-color:var(--color-success);color:var(--color-success)}.piano-stop-btn[data-astro-cid-uvgtxgew]:not(:disabled):hover{border-color:var(--color-warning);color:var(--color-warning)}.piano-rec-time[data-astro-cid-uvgtxgew]{font-family:var(--font-mono);font-size:.875rem;font-weight:700;color:var(--color-text-muted);letter-spacing:.05em;margin-left:auto}.piano-metronome-link[data-astro-cid-uvgtxgew]{display:inline-flex;align-items:center;gap:.25rem;font-size:.8125rem;font-weight:600;color:var(--color-primary);padding:.375rem .75rem;border:1.5px solid var(--color-primary);border-radius:var(--radius-sm);text-decoration:none;transition:all .15s ease;min-height:36px}.piano-metronome-link[data-astro-cid-uvgtxgew]:hover{background:var(--color-primary);color:#fff;text-decoration:none}.piano-keyboard-wrap[data-astro-cid-uvgtxgew]{overflow-x:auto;border:2px solid var(--color-border);border-radius:var(--radius-lg);background:#1a1a1a;padding:.75rem .5rem 0;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--color-primary) var(--color-bg-soft)}.piano-keyboard-wrap[data-astro-cid-uvgtxgew]::-webkit-scrollbar{height:6px}.piano-keyboard-wrap[data-astro-cid-uvgtxgew]::-webkit-scrollbar-track{background:#2a2a2a;border-radius:3px}.piano-keyboard-wrap[data-astro-cid-uvgtxgew]::-webkit-scrollbar-thumb{background:var(--color-primary);border-radius:3px}.piano-keyboard[data-astro-cid-uvgtxgew]{display:flex;position:relative;user-select:none;-webkit-user-select:none;touch-action:none;padding-bottom:.75rem}.piano-white-key{position:relative;width:42px;height:160px;background:#fff;border:1px solid #999;border-bottom-left-radius:4px;border-bottom-right-radius:4px;cursor:pointer;flex-shrink:0;transition:background .05s ease;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;box-sizing:border-box;-webkit-tap-highlight-color:transparent}.piano-white-key:hover{background:#f5f0ff}.piano-white-key.is-pressed{background:var(--color-primary-pale, #eef2ff);border-color:var(--color-primary)}.piano-white-key.is-chord-highlight{background:#fef3c7;border-color:#d97706}.piano-white-key.is-pressed.is-chord-highlight{background:#fde68a}.piano-black-key{position:absolute;width:28px;height:100px;background:#1f2937;border-radius:0 0 4px 4px;cursor:pointer;z-index:2;top:0;transition:background .05s ease;display:flex;align-items:flex-end;justify-content:center;padding-bottom:5px;box-sizing:border-box;-webkit-tap-highlight-color:transparent}.piano-black-key:hover{background:#374151}.piano-black-key.is-pressed{background:#4f46e5}.piano-black-key.is-chord-highlight{background:#92400e}.piano-black-key.is-pressed.is-chord-highlight{background:#b45309}.piano-key-label{font-size:.625rem;font-weight:700;pointer-events:none;line-height:1}.piano-white-key .piano-key-label{color:#6b7280}.piano-black-key .piano-key-label{color:#9ca3af}.piano-kbd-key-hint{position:absolute;top:6px;left:50%;transform:translate(-50%);font-size:.5625rem;font-weight:600;color:#9ca3af;background:#ffffff14;border-radius:2px;padding:1px 3px;pointer-events:none;line-height:1}.piano-white-key .piano-kbd-key-hint{color:#9ca3af;background:#0000000f}.piano-kbd-hint[data-astro-cid-uvgtxgew]{font-size:.75rem;color:var(--color-text-muted);padding:.375rem .5rem;display:flex;flex-wrap:wrap;gap:.25rem .5rem;align-items:center}.piano-kbd-hint-title[data-astro-cid-uvgtxgew]{font-weight:700;color:var(--color-text)}kbd[data-astro-cid-uvgtxgew]{display:inline-block;padding:1px 5px;font-family:var(--font-mono);font-size:.6875rem;border:1px solid var(--color-border);border-bottom-width:2px;border-radius:3px;background:var(--color-bg-soft);color:var(--color-text);line-height:1.6}.sr-only[data-astro-cid-uvgtxgew]{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[data-astro-cid-uvgtxgew][data-theme=dark] .piano-controls[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-controls--secondary[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-chord-checker[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-rec-bar[data-astro-cid-uvgtxgew]{background:#ffffff0d;border-color:#ffffff1f}[data-astro-cid-uvgtxgew][data-theme=dark] .piano-range-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-label-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-oct-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-chord-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-play-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-stop-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-sustain-btn[data-astro-cid-uvgtxgew],[data-astro-cid-uvgtxgew][data-theme=dark] .piano-select[data-astro-cid-uvgtxgew]{background:#ffffff0f;border-color:#ffffff26;color:#e5e7eb}[data-astro-cid-uvgtxgew][data-theme=dark] .piano-white-key{background:#e8e8e8;border-color:#555}[data-astro-cid-uvgtxgew][data-theme=dark] .piano-white-key:hover{background:#d4c8ff}[data-astro-cid-uvgtxgew][data-theme=dark] .piano-keyboard-wrap[data-astro-cid-uvgtxgew]{border-color:#333;background:#111}@media(max-width:768px){.piano-controls[data-astro-cid-uvgtxgew]{gap:.5rem .75rem;padding:.625rem .75rem}.piano-range-btn[data-astro-cid-uvgtxgew]{min-height:44px;padding:0 .625rem}.piano-white-key{width:34px;height:130px}.piano-black-key{width:22px;height:82px}.piano-slider[data-astro-cid-uvgtxgew]{width:70px}.piano-metronome-link[data-astro-cid-uvgtxgew],.piano-kbd-hint[data-astro-cid-uvgtxgew]{display:none}}