/**
 * Playlist Builder Styles
 * Multi-track playlist with drag-drop and crossfade configuration
 */

/* Mode Toggle */
.playlist-mode-toggle {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  background: var(--br-gray-100);
  padding: var(--space-1);
  border-radius: var(--radius-md);
}

.mode-btn {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  color: var(--br-gray-600);
}

.mode-btn:hover {
  background: var(--br-gray-200);
}

.mode-btn--active {
  background: var(--br-white);
  color: var(--br-gray-900);
  box-shadow: var(--shadow-sm);
}

/* Single Track Preview */
.track-preview {
  background: var(--br-gray-50);
  border: 1px solid var(--br-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}

.track-preview__info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.track-preview__icon {
  font-size: 2rem;
}

.track-preview__details {
  flex: 1;
  min-width: 0;
}

.track-preview__title {
  font-weight: 600;
  color: var(--br-gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-preview__meta {
  font-size: 0.85rem;
  color: var(--br-gray-500);
  margin-top: var(--space-1);
}

.track-preview__remove {
  background: var(--br-error);
  color: white;
}

/* Playlist Mode */
.playlist-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.playlist-count {
  font-size: 0.85rem;
  color: var(--br-gray-500);
}

/* Playlist Tracks Container */
.playlist-tracks {
  border: 1px solid var(--br-gray-200);
  border-radius: var(--radius-md);
  background: var(--br-white);
  min-height: 150px;
}

.playlist-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  color: var(--br-gray-400);
  text-align: center;
}

.playlist-empty span {
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
}

.playlist-empty p {
  margin: 0;
  font-size: 0.9rem;
}

/* Individual Track */
.playlist-track {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-bottom: 1px solid var(--br-gray-100);
  background: var(--br-white);
  transition: background 0.2s ease;
}

.playlist-track:last-child {
  border-bottom: none;
}

.playlist-track:hover {
  background: var(--br-gray-50);
}

.playlist-track.dragging {
  opacity: 0.5;
  background: var(--br-orange-light);
}

.playlist-track__handle {
  cursor: grab;
  padding: var(--space-2);
  color: var(--br-gray-400);
  font-size: 1rem;
  user-select: none;
}

.playlist-track__handle:active {
  cursor: grabbing;
}

.playlist-track__number {
  width: 24px;
  height: 24px;
  background: var(--br-gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--br-gray-600);
  font-weight: 600;
}

.playlist-track__info {
  flex: 1;
  min-width: 0;
}

.playlist-track__title {
  font-weight: 500;
  color: var(--br-gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-track__meta {
  font-size: 0.8rem;
  color: var(--br-gray-500);
  margin-top: 2px;
}

/* Transition Configuration */
.playlist-track__transition {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.transition-config {
  display: flex;
  gap: var(--space-2);
  background: var(--br-gray-50);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.transition-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.7rem;
  color: var(--br-gray-500);
  text-transform: uppercase;
}

.transition-select {
  padding: 4px 8px;
  border: 1px solid var(--br-gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  background: var(--br-white);
  color: var(--br-gray-900);
  cursor: pointer;
  min-width: 60px;
}

.transition-select:focus {
  outline: none;
  border-color: var(--br-orange);
}

.transition-end {
  font-size: 0.75rem;
  color: var(--br-gray-400);
  font-style: italic;
  padding: var(--space-2) var(--space-3);
}

/* Remove Button */
.playlist-track__remove {
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--br-gray-400);
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.playlist-track__remove:hover {
  background: var(--br-error);
  color: white;
}

/* Preview Section */
.playlist-preview {
  margin-top: var(--space-4);
  padding: var(--space-3);
  background: var(--br-gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--br-gray-200);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.preview-header span {
  font-weight: 600;
  color: var(--br-gray-700);
}

.preview-close-btn {
  padding: 4px 8px;
  font-size: 1.2rem;
}

.preview-status {
  text-align: center;
  padding: var(--space-2);
  color: var(--br-gray-500);
  font-size: 0.85rem;
}

.preview-controls {
  display: flex;
  justify-content: center;
}

/* Responsive */
@media (max-width: 640px) {
  .transition-config {
    flex-wrap: wrap;
  }

  .playlist-track {
    flex-wrap: wrap;
  }

  .playlist-track__transition {
    width: 100%;
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px dashed var(--br-gray-200);
  }

  .transition-config {
    width: 100%;
    justify-content: space-between;
  }
}