/* Audio lab — analyzer + converter */

.tool-stage--audio-lab {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 58rem;
}

.audio-lab-intro {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.audio-lab-drop {
  padding: 1.1rem 1.25rem;
  border: 1px dashed rgba(108, 182, 255, 0.35);
  border-radius: 0;
  background: linear-gradient(145deg, rgba(5, 5, 5, 0.65), rgba(5, 5, 5, 0.45));
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.audio-lab-drop.is-drag {
  border-color: var(--accent-warm);
  background: rgba(108, 182, 255, 0.08);
  box-shadow: none;
}

.audio-lab-drop__title {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
  color: var(--text);
}

.audio-lab-drop__ext {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--text-faint);
}

.audio-lab-drop__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.audio-lab-file-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.audio-lab-status {
  margin: 0.65rem 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.audio-lab-status--error {
  color: var(--danger, #e94142);
}

.audio-lab-status--ok {
  color: var(--success, #5ba32b);
}

/* Stats grid */
.audio-lab-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
  gap: 0.45rem 0.75rem;
  margin-bottom: 0.85rem;
}

.audio-lab-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--pixel-border, var(--border));
  background: rgba(5, 5, 5, 0.55);
}

.audio-lab-stat__label {
  font-family: var(--pixel-font-display, var(--font-mono));
  font-size: 0.56rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.audio-lab-stat__val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
}

.audio-lab-stat__val.is-warn {
  color: var(--danger, #e94142);
}

/* Track lanes (waveform / spectrogram) */
.audio-lab-track {
  margin-bottom: 0.85rem;
  padding: 0.55rem 0.6rem 0.65rem;
  border: 1px solid rgba(108, 182, 255, 0.12);
  background: rgba(5, 5, 5, 0.55);
}

.audio-lab-track__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.25rem;
}

.audio-lab-track__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.65rem;
  contain: layout style;
}

.audio-lab-track-volume {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 8rem;
  flex: 1 1 9rem;
  max-width: 14rem;
}

.audio-lab-track-volume__icon {
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.85;
}

.audio-lab-track-volume.is-muted .audio-lab-track-volume__icon {
  opacity: 0.55;
}

.audio-lab-track-volume__slider {
  flex: 1;
  min-width: 4.5rem;
  accent-color: rgba(108, 182, 255, 0.85);
  touch-action: none;
}

.audio-lab-track-volume__slider:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.audio-lab-track-volume__val {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  min-width: 2.75rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.audio-lab-track__hint {
  margin: 0 0 0.4rem;
  font-size: 0.68rem;
  color: var(--text-faint);
}

.audio-lab-time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  min-width: 7rem;
}

.audio-lab-play {
  min-width: 7.5rem;
}

.audio-lab-chart-label {
  margin: 0;
  font-family: var(--pixel-font-display, var(--font-mono));
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.audio-lab-canvas {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(128, 128, 128, 0.15);
  background: rgba(5, 5, 5, 0.95);
  border-radius: 0;
}

.audio-lab-canvas--wave {
  cursor: pointer;
  min-height: 120px;
}

.audio-lab-canvas--wave:hover {
  border-color: rgba(108, 182, 255, 0.35);
}

.audio-lab-canvas--spec {
  min-height: 140px;
}

.audio-lab-silence {
  margin-top: 0.25rem;
}

.audio-lab-silence-list {
  margin: 0;
  padding-left: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.audio-lab-silence-empty,
.audio-lab-silence-more {
  list-style: none;
  margin-left: -1.1rem;
  color: var(--text-faint);
}

/* Converter */
.audio-lab-convert__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem 1rem;
  margin-bottom: 0.85rem;
}

.audio-lab-format-select,
.audio-lab-kbps-select {
  min-width: 10rem;
  min-height: 2.25rem;
}

.audio-lab-kbps {
  min-width: 8rem;
}

.audio-lab-convert-section {
  margin-bottom: 0.85rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(128, 128, 128, 0.12);
  background: rgba(5, 5, 5, 0.4);
}

.audio-lab-convert-sub {
  margin: 0 0 0.55rem;
  font-family: var(--pixel-font-display, var(--font-mono));
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.audio-lab-source-hint {
  margin: 0 0 0.5rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.74rem;
  line-height: 1.45;
  color: var(--text-muted);
  background: rgba(108, 182, 255, 0.08);
  border-left: 2px solid rgba(108, 182, 255, 0.45);
}

.audio-lab-muted {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-faint);
}

/* Format traits card */
.audio-lab-traits-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem 0.75rem;
}

.audio-lab-trait {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.4rem 0.5rem;
  background: rgba(5, 5, 5, 0.45);
  border-left: 2px solid rgba(108, 182, 255, 0.35);
}

.audio-lab-trait--wide {
  grid-column: 1 / -1;
}

.audio-lab-trait__label {
  font-family: var(--pixel-font-display, var(--font-mono));
  font-size: 0.54rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.audio-lab-trait__val {
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-muted);
}

/* Diff table «было → станет» */
.audio-lab-diff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.76rem;
}

.audio-lab-diff-table th {
  padding: 0.35rem 0.5rem;
  font-family: var(--pixel-font-display, var(--font-mono));
  font-size: 0.56rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  color: var(--text-faint);
  border-bottom: 1px solid rgba(128, 128, 128, 0.15);
}

.audio-lab-diff-table td {
  padding: 0.4rem 0.5rem;
  vertical-align: top;
  border-bottom: 1px solid rgba(128, 128, 128, 0.08);
  color: var(--text-muted);
}

.audio-lab-diff-table tr.is-changed td:nth-child(2) {
  color: var(--text-faint);
}

.audio-lab-diff-table tr.is-changed td:nth-child(3) {
  color: var(--text);
  background: rgba(108, 182, 255, 0.06);
}

.audio-lab-diff-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  white-space: nowrap;
}

.audio-lab-diff-note {
  font-size: 0.68rem;
  color: var(--text-faint);
}

.audio-lab-diff-delta {
  display: inline-block;
  margin-left: 0.25rem;
  padding: 0.05rem 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  border-radius: 0;
}

.audio-lab-diff-delta.is-down {
  color: var(--success, #5ba32b);
  background: rgba(91, 163, 43, 0.12);
}

.audio-lab-diff-delta.is-up {
  color: var(--accent-warm, #94a3b8);
  background: rgba(108, 182, 255, 0.12);
}

.audio-lab-diff-warns {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--accent-warm, #94a3b8);
}

.audio-lab-hint {
  margin: 0.65rem 0 0;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--text-faint);
}

@media (max-width: 520px) {
  .audio-lab-convert__row {
    flex-direction: column;
    align-items: stretch;
  }

  .audio-lab-format-select,
  .audio-lab-kbps-select {
    width: 100%;
  }

  .audio-lab-traits-grid {
    grid-template-columns: 1fr;
  }

  .audio-lab-diff-table {
    font-size: 0.7rem;
  }

  .audio-lab-diff-table th:nth-child(1),
  .audio-lab-diff-table td:nth-child(1) {
    display: none;
  }
}