/* ==========================================================================
   Estilos del Mezclador Multicanal (Mixer Drawer)
   ========================================================================== */
.mixer-drawer {
  padding: 12px 20px;
  background-color: var(--bg-surface-raised);
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: var(--mixer-height);
  border-top: 1px solid var(--border-subtle);
}

.mixer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.mixer-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mixer-title-group h3 {
  font-size: 0.92rem;
  font-weight: 700;
}

.mixer-track-badge {
  font-size: 0.72rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2px 8px;
  border-radius: 10px;
  color: var(--text-muted);
}

.btn-close-mixer {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
}

.btn-close-mixer:hover {
  color: var(--text-primary);
}

.mixer-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Canales / Faders */
.mixer-channels-scroll {
  flex: 1;
  overflow-x: auto;
  overflow-y: hidden;
}

.mixer-channels-grid {
  display: inline-flex;
  gap: 12px;
  height: 100%;
  padding-bottom: 6px;
}

.channel-strip {
  width: 90px;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

body.theme-ivory .channel-strip {
  background-color: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.channel-strip:hover {
  border-color: var(--border-strong);
}

.channel-visual-active {
  border-color: var(--accent-primary) !important;
  background-color: rgba(255, 87, 34, 0.08) !important;
}

.btn-view-track {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
}

.btn-view-track.active {
  background-color: var(--accent-primary);
  color: var(--text-primary);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.channel-fader-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin: 6px 0;
}

.vertical-fader {
  width: 70px;
  cursor: pointer;
  accent-color: var(--accent-primary);
}

.fader-value-label {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.channel-buttons {
  display: flex;
  gap: 4px;
  width: 100%;
  justify-content: center;
}

.btn-solo, .btn-mute {
  flex: 1;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 0;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-raised);
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
}

.btn-solo:hover {
  color: var(--accent-solo);
}

.btn-solo.active {
  background-color: var(--accent-solo);
  color: var(--text-inverse);
  border-color: var(--accent-solo);
}

.btn-mute:hover {
  color: var(--accent-mute);
}

.btn-mute.active {
  background-color: var(--accent-mute);
  color: var(--text-primary);
  border-color: var(--accent-mute);
}

.channel-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  overflow: hidden;
  margin-top: 4px;
}

.channel-number {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.channel-name {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  text-align: center;
}