/* ============================================================
   D4W.XYZ — Channel Rack (spec §7)
   ============================================================ */

.channel-rack {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.channel-rack-list {
  flex: 1 1 auto;
  overflow-y: auto;
}

.channel-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border-color);
}

.channel-row.selected {
  background: var(--accent-glow);
}

.channel-row.dragging {
  opacity: 0.4;
}

.channel-row.drag-over-top {
  box-shadow: inset 0 2px 0 0 var(--accent-primary);
}

.channel-row.drag-over-bottom {
  box-shadow: inset 0 -2px 0 0 var(--accent-primary);
}

.channel-drag-handle {
  width: 14px;
  flex: 0 0 auto;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  cursor: grab;
  user-select: none;
}

.channel-drag-handle:active {
  cursor: grabbing;
}

.channel-preview {
  width: 24px;
  height: 24px;
  font-size: 11px;
  flex: 0 0 auto;
}

.channel-swatch {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border: 1px solid var(--border-color);
  cursor: pointer;
  padding: 0;
}

.channel-name {
  flex: 1 1 auto;
  min-width: 0;
  padding: 3px 6px;
  font-size: 12px;
  color: var(--text-primary);
  border-radius: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.channel-name.editing {
  white-space: normal;
  cursor: text;
  background: var(--bg-tertiary);
  outline: 1px solid var(--border-accent);
}

.channel-knob {
  flex: 0 0 auto;
}

.channel-knob .knob {
  width: 32px;
  gap: 0;
}

.channel-knob .knob-label {
  display: none;
}

.channel-knob .knob-svg {
  width: 24px;
  height: 24px;
}

.channel-knob .knob-value {
  font-size: 9px;
}

.channel-mixer-num {
  width: 38px;
  flex: 0 0 auto;
  font-size: 11px;
}

.channel-mute,
.channel-solo {
  width: 22px;
  height: 22px;
  font-size: 11px;
  flex: 0 0 auto;
}

.channel-mute.active {
  background: var(--meter-high);
  border-color: var(--meter-high);
  color: #fff;
}

.channel-solo.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-primary);
}

.channel-menu {
  width: 22px;
  height: 22px;
  font-size: 12px;
  flex: 0 0 auto;
}

.channel-rack-add-row {
  display: flex;
  gap: 8px;
  padding: 8px;
}

.channel-rack-add {
  flex: 1 1 0;
}

/* Add-channel / change-instrument modal */
.instrument-type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.instrument-type-btn {
  padding: 14px 10px;
  font-size: 13px;
  text-align: center;
}