/**
 * Slide Navigator Module
 * Left sidebar with slide thumbnails
 * Version: 2.0.0
 */

/* === SLIDE THUMBNAILS === */
.slide-thumbnail {
  position: relative;
  width: 100%;
  margin-bottom: var(--decka-space-8);
  background: var(--decka-bg-primary);
  border: 2px solid var(--decka-border-light);
  border-radius: var(--decka-radius-md);
  overflow: hidden;
  transition: all var(--decka-transition-normal);
  cursor: pointer;
  aspect-ratio: 16/9;
}

.slide-thumbnail:hover {
  border-color: var(--decka-primary);
  box-shadow: var(--decka-shadow-md);
  transform: translateY(-2px);
}

.slide-thumbnail.active {
  border-color: var(--decka-primary);
  background: var(--decka-primary-bg);
  box-shadow: var(--decka-shadow-md);
}

.slide-thumbnail-preview {
  position: relative;
  width: 100%;
  height: calc(100% - 32px);
  background: var(--decka-bg-secondary);
  overflow: hidden;
}

.slide-thumbnail-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slide-thumbnail-number {
  position: absolute;
  top: var(--decka-space-4);
  left: var(--decka-space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: var(--decka-font-size-xs);
  font-weight: var(--decka-font-weight-medium);
  border-radius: var(--decka-radius-sm);
}

.slide-thumbnail-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--decka-space-4) var(--decka-space-6);
  background: var(--decka-bg-secondary);
  border-top: 1px solid var(--decka-border-light);
}

.slide-thumbnail-title {
  font-size: var(--decka-font-size-xs);
  font-weight: var(--decka-font-weight-medium);
  color: var(--decka-text-secondary);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.slide-actions {
  display: flex;
  align-items: center;
  gap: var(--decka-space-2);
  opacity: 0;
  transition: opacity var(--decka-transition-fast);
}

.slide-thumbnail:hover .slide-actions {
  opacity: 1;
}

.slide-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: transparent;
  color: var(--decka-text-muted);
  border: none;
  border-radius: var(--decka-radius-sm);
  transition: all var(--decka-transition-fast);
  cursor: pointer;
}

.slide-action-btn:hover {
  background: var(--decka-primary);
  color: white;
}

/* === DRAG AND DROP === */
.slide-thumbnail.dragging {
  opacity: 0.5;
  transform: rotate(5deg);
}

.slide-thumbnail.drop-target {
  border-color: var(--decka-success);
  background: rgba(40, 167, 69, 0.1);
}

.slide-drop-indicator {
  height: 2px;
  background: var(--decka-primary);
  border-radius: 1px;
  margin: var(--decka-space-2) 0;
  opacity: 0;
  transition: opacity var(--decka-transition-fast);
}

.slide-drop-indicator.show {
  opacity: 1;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .slide-thumbnail {
    margin-bottom: var(--decka-space-6);
  }
  
  .slide-thumbnail-controls {
    padding: var(--decka-space-2) var(--decka-space-4);
  }
  
  .slide-actions {
    opacity: 1;
  }
}