.h2 { margin: 0 0 12px; font-size: 1.15rem; }
.h3 { margin: 18px 0 8px; font-size: .95rem; color: var(--muted); font-weight: 600; }
.time.big { font-size: 1.3rem; color: var(--ink); min-width: 4ch; }
.meter { height: 10px; margin-top: 12px; border-radius: 6px; background: var(--line); overflow: hidden; }
#meterBar { height: 100%; width: 0; background: var(--hi); transition: width .06s linear; }
.piano-box { margin-top: 16px; }
.piano-box summary { cursor: pointer; color: var(--muted); margin-bottom: 8px; }
.wave { width: 100%; height: 110px; display: block; background: color-mix(in srgb, var(--accent) 5%, transparent); border-radius: 10px; margin-bottom: 12px; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.presets .btn { min-height: 40px; padding: 0 14px; }
.sliders { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px 22px; }
.sl { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; align-items: center; font-size: .92rem; }
.sl input { grid-column: 1 / -1; width: 100%; }
.sl output { color: var(--muted); font-variant-numeric: tabular-nums; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 12px; font-size: .95rem; }
.checks label { display: flex; align-items: center; gap: 8px; min-height: 32px; }
.btn.rec { background: #c0262d; border-color: #c0262d; color: #fff; }
.nav { display: flex; flex-wrap: wrap; gap: 8px; }

.filebox { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; }
.filebtn { cursor: pointer; display: inline-flex; align-items: center; }
#audioFile:focus-visible + .filebtn { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn.small { min-height: 36px; padding: 0 12px; font-size: .9rem; }
.tune-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 10px 22px; margin-bottom: 12px; }
.tune-grid .inst select { flex: 1; min-width: 0; }
.tune-presets { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.tune-hint { margin: 0 0 10px; }
@media (max-width: 560px) { .tune-presets { margin-left: 0; } }

.ab { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 10px 0; }
.ab > span { min-width: 6ch; color: var(--muted); font-size: .92rem; }
.ab audio { flex: 1; min-width: 220px; max-width: 100%; }
#minusCard .drop { margin-bottom: 12px; }

#kMeter { height: 100%; width: 0; background: var(--hi); transition: width .06s linear; }
#kAudio { width: 100%; margin-top: 12px; }
#kMix { margin-top: 12px; }