:root{--background:#0b0b0c;--surface:#161618;--border:#2c2c30;--text:#ececec;--muted:#8a8a90;--accent:#ffb000;--error:#ff6b5e;--tab-bar-height:64px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box;border-radius:0}html,body{background:var(--background);color:var(--text);-webkit-tap-highlight-color:transparent;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}button,input{font:inherit;color:inherit}button{cursor:pointer;touch-action:manipulation}main{padding:calc(16px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) calc(var(--tab-bar-height) + 16px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));max-width:560px;margin:0 auto}@media (orientation:landscape) and (height<=500px){:root{--tab-bar-height:44px}}body[data-active-panel=panel-keys] main{max-width:none;padding-top:calc(8px + env(safe-area-inset-top));padding-bottom:calc(var(--tab-bar-height) + 8px + env(safe-area-inset-bottom))}.placeholder{color:var(--muted);text-align:center;margin-top:40vh}.tab-bar{height:calc(var(--tab-bar-height) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--border);grid-template-columns:repeat(4,1fr);display:grid;position:fixed;inset:auto 0 0}.tab{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;background:0 0;border:none;border-top:2px solid #0000;font-size:.85rem}.tab[aria-current=page]{color:var(--text);border-top-color:var(--accent)}.metronome{flex-direction:column;gap:16px;display:flex}.beat-dots{justify-content:center;align-items:center;gap:6px;min-height:48px;display:flex}.dot{background:var(--border);border-radius:50%;transition:background-color 60ms}.dot-bar{width:22px;height:22px}.dot-group{width:18px;height:18px;margin-left:10px}.dot-beat{width:14px;height:14px}.dot.active{background:var(--accent)}.dot-beat.active{background:var(--text)}.stepper{grid-template-columns:64px 1fr 64px;align-items:center;display:grid}.square-button{background:var(--surface);border:1px solid var(--border);height:64px;font-size:2rem;line-height:1}.square-button:active,.tap-button:active,.chip:active{background:var(--border)}.stepper-display{flex-direction:column;align-items:center;display:flex}.stepper-number{font-variant-numeric:tabular-nums;font-size:5.5rem;font-weight:200;line-height:1}.stepper-unit{color:var(--muted);letter-spacing:.2em;font-size:.8rem}.tempo-entry{grid-template-columns:auto 1fr auto;align-items:center;gap:8px;display:grid}.tempo-entry label,.section-label{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin:0;font-size:.8rem;font-weight:400}#bpm-input{background:var(--background);border:1px solid var(--border);font-variant-numeric:tabular-nums;min-width:0;height:48px;padding:0 12px;font-size:1.25rem}#bpm-input:focus{border-color:var(--accent);outline:none}#bpm-input[aria-invalid=true]{border-color:var(--error)}.tap-button{background:var(--surface);border:1px solid var(--border);height:48px;padding:0 20px}.field-error{color:var(--error);min-height:1.2em;margin:-8px 0 0;font-size:.9rem}.field-error:empty{display:none}.chip-row{scrollbar-width:none;gap:8px;margin:-8px -16px 0;padding:0 16px;display:flex;overflow-x:auto}.chip-row::-webkit-scrollbar{display:none}.chip{background:var(--surface);border:1px solid var(--border);font-variant-numeric:tabular-nums;flex:none;min-width:56px;height:44px;padding:0 12px}.chip[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.grouping,.beat-unit{flex-direction:column;gap:16px;display:flex}.grouping[hidden],.beat-unit[hidden]{display:none}.start-button{background:var(--accent);height:64px;color:var(--background);letter-spacing:.1em;text-transform:uppercase;border:none;margin-top:8px;font-size:1.25rem;font-weight:600}.start-button:disabled{opacity:.6}.stepper-compact .stepper-number{font-size:3rem}.tuner{flex-direction:column;gap:16px;display:flex}.tuner-note{justify-content:center;align-items:baseline;min-height:6rem;font-weight:200;display:flex}.note-name{font-size:6rem;line-height:1}.note-octave{color:var(--muted);margin-left:4px;font-size:2rem}.gauge{width:100%;max-width:400px;margin:0 auto;display:block}.gauge-arc,.gauge-in-tune{fill:none;stroke-width:2px}.gauge-arc{stroke:var(--border)}.gauge-in-tune{stroke:var(--accent);stroke-width:6px}.gauge-tick{stroke:var(--muted);stroke-width:2px}.gauge-tick.major{stroke:var(--text)}.gauge-needle{stroke:var(--text);stroke-width:3px;transform-box:view-box;transform-origin:150px 160px;transition:transform 90ms linear}.gauge-needle.in-tune{stroke:var(--accent)}.no-note .gauge-needle{stroke:var(--border)}.gauge-pivot{fill:var(--text)}.gauge-labels{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;grid-template-columns:1fr auto 1fr;align-items:center;margin-top:-8px;font-size:.8rem;display:grid}.gauge-labels :last-child{text-align:right}.cents-readout{min-width:6ch;color:var(--text);text-align:center;text-transform:none;letter-spacing:0;font-variant-numeric:tabular-nums;font-size:1.5rem}.tuner-status{min-height:1.2em;color:var(--muted);text-align:center;margin:0}.keys{height:calc(100dvh - var(--tab-bar-height) - 16px - env(safe-area-inset-top) - env(safe-area-inset-bottom));-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;flex-direction:column;gap:8px;display:flex}.rotate-hint{color:var(--muted);text-align:center;margin:auto;display:none}@media (orientation:portrait){.rotate-hint{display:block}.keys-toolbar,.keyboard{display:none}}.keys-toolbar{flex:none;gap:8px;height:36px;display:flex}.tone-picker{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;align-items:center;gap:6px;font-size:.8rem;display:flex}.tone-select{height:100%;font:inherit;text-transform:none;letter-spacing:normal;color:var(--text);background:var(--surface);border:1px solid var(--border);padding:0 8px;font-size:.95rem}.keyboard-map{background:var(--surface);border:1px solid var(--border);touch-action:none;cursor:grab;flex:1;position:relative}.map-key{border-right:1px solid var(--border);background:#d8d8d8;height:100%;position:absolute;top:0}.map-key.middle-c{background:var(--accent)}.map-key.black{background:var(--background);border:none;height:60%}.map-window{z-index:1;border:2px solid var(--accent);pointer-events:none;background:#ffb00026;position:absolute;top:-1px;bottom:-1px}.keyboard{touch-action:none;flex:1;min-height:0;position:relative}.key{position:absolute;top:0}.key.white{border:1px solid var(--background);background:#ececec;justify-content:center;align-items:flex-end;height:100%;padding-bottom:8px;display:flex}.key.black{z-index:1;border:1px solid var(--background);background:#1c1c1f;height:60%}.key.white.pressed{background:var(--accent)}.key.black.pressed{background:#a87400}.key-label{color:#6a6a70;pointer-events:none;font-size:.75rem}