.presentation-editor {
  min-height: 100vh;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
}

/* Header */
.editor-header {
  background: white;
  border-bottom: 1px solid #e2e8f0;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.presentation-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
  min-width: 0;
}

.back-link {
  color: #64748b;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.back-link:hover {
  background: #f1f5f9;
  color: #334155;
}

.presentation-title {
  flex: 1;
  min-width: 0;
}

.presentation-title h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: #1e293b;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.presentation-description {
  margin: 0.25rem 0 0 0;
  color: #64748b;
  font-size: 0.875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.presentation-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.theme-badge {
  background: #dbeafe;
  color: #1e40af;
  padding: 0.25rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
}

.slide-counter {
  color: #6b7280;
  font-size: 0.875rem;
  font-weight: 500;
}

.saving-indicator {
  color: #f59e0b;
  font-size: 0.875rem;
  font-weight: 500;
}

.editor-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.action-button {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.action-button.primary {
  background: #3b82f6;
  color: white;
}

.action-button.primary:hover:not(:disabled) {
  background: #2563eb;
}

.action-button.secondary {
  background: #f8fafc;
  color: #64748b;
  border: 1px solid #e2e8f0;
}

.action-button.secondary:hover:not(:disabled) {
  background: #f1f5f9;
  color: #475569;
}

.action-button.large {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.action-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Main Content */
.editor-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Empty State */
.empty-presentation {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.empty-content {
  text-align: center;
  max-width: 800px;
}

.empty-content h2 {
  margin: 0 0 0.5rem 0;
  color: #374151;
  font-size: 1.5rem;
}

.empty-content p {
  margin: 0 0 2rem 0;
  color: #6b7280;
  font-size: 1rem;
}

/* Theme Preview in Empty State */
.theme-preview {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  padding: 2rem;
  margin: 2rem 0;
  text-align: left;
  max-height: 500px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.theme-preview h3 {
  margin: 0 0 0.5rem 0;
  color: #1e293b;
  font-size: 1.25rem;
  font-weight: 600;
}

.theme-description {
  margin: 0 0 1.5rem 0;
  color: #64748b;
  font-size: 0.875rem;
}

.available-layouts {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.available-layouts h4 {
  margin: 0 0 1rem 0;
  color: #374151;
  font-size: 1rem;
  font-weight: 600;
  flex-shrink: 0;
}

.layouts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  overflow-y: auto;
  max-height: 300px;
  padding-right: 0.5rem;
}

/* Custom scrollbar for layouts grid */
.layouts-grid::-webkit-scrollbar {
  width: 6px;
}

.layouts-grid::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 3px;
}

.layouts-grid::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

.layouts-grid::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.layout-preview-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  padding: 1rem;
  transition: all 0.2s ease;
}

.layout-preview-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.layout-name {
  font-weight: 600;
  color: #1e293b;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.layout-description {
  color: #64748b;
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.slot-count {
  color: #059669;
  font-size: 0.75rem;
  font-weight: 500;
}

.more-layouts {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  border: 1px dashed #cbd5e1;
  border-radius: 0.5rem;
  padding: 1rem;
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Editor Layout */
.editor-layout {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* Slide Sidebar */
.slide-sidebar {
  width: 280px;
  background: white;
  border-right: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
}

.add-slide-button {
  width: 32px;
  height: 32px;
  border: 1px solid #e2e8f0;
  background: white;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 1.25rem;
  color: #3b82f6;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.add-slide-button:hover:not(:disabled) {
  background: #f8fafc;
  border-color: #3b82f6;
}

.add-slide-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.slides-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.slide-thumbnail {
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.slide-thumbnail:hover {
  border-color: #cbd5e1;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.slide-thumbnail.active {
  border-color: #3b82f6;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.thumbnail-number {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  background: #374151;
  color: white;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
  z-index: 10;
}

.slide-thumbnail.active .thumbnail-number {
  background: #3b82f6;
}

.thumbnail-preview {
  padding: 2rem 1rem 1rem;
  min-height: 80px;
  background: #f8fafc;
  border-radius: 0.25rem;
  margin: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumbnail-content {
  text-align: center;
}

.layout-name {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.25rem;
}

.content-count {
  display: block;
  font-size: 0.625rem;
  color: #6b7280;
}

.thumbnail-actions {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem;
  justify-content: center;
  border-top: 1px solid #f1f5f9;
}

.thumbnail-action {
  width: 28px;
  height: 28px;
  border: 1px solid #e2e8f0;
  background: white;
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: #6b7280;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.thumbnail-action:hover:not(:disabled) {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.thumbnail-action.delete:hover:not(:disabled) {
  background: #fef2f2;
  border-color: #fecaca;
  color: #dc2626;
}

.thumbnail-action:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Slide Editor Area */
.slide-editor-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.slide-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem;
}

.slide-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.slide-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
}

.slide-controls {
  display: flex;
  gap: 0.5rem;
}

.control-button {
  padding: 0.375rem 0.75rem;
  border: 1px solid #e2e8f0;
  background: white;
  color: #374151;
  border-radius: 0.375rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.control-button:hover:not(:disabled) {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.control-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.slide-content-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.content-preview {
  flex: 1;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  padding: 2rem;
  min-height: 400px;
}

.editor-placeholder {
  text-align: center;
  color: #6b7280;
}

.editor-placeholder h4 {
  margin: 0 0 1rem 0;
  color: #374151;
}

.editor-placeholder p {
  margin: 0.5rem 0;
}

.content-slots {
  margin: 1.5rem 0;
  text-align: left;
}

.content-slot {
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: #f8fafc;
  border-radius: 0.375rem;
}

.content-slot label {
  display: block;
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
}

.slot-content {
  color: #6b7280;
  font-size: 0.875rem;
}

.placeholder-note {
  font-style: italic;
  color: #9ca3af;
  margin-top: 1.5rem;
}

.slide-notes-editor {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  padding: 1rem;
}

.slide-notes-editor h4 {
  margin: 0 0 0.75rem 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
}

.notes-textarea {
  width: 100%;
  min-height: 80px;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  color: #374151;
  background: white;
  box-sizing: border-box;
  resize: vertical;
  font-family: inherit;
}

.notes-textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.slide-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  color: #dc2626;
}

/* Loading and Error States */
.loading-content,
.error-content,
.not-found-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  gap: 1rem;
}

.loading-spinner {
  color: #64748b;
  font-size: 1.125rem;
}

.error-content h2,
.not-found-content h2 {
  color: #dc2626;
  margin: 0;
}

.error-content p,
.not-found-content p {
  color: #64748b;
  margin: 0.5rem 0 1.5rem 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .slide-sidebar {
    width: 240px;
  }
  
  .editor-header {
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .presentation-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .presentation-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .editor-actions {
    justify-content: stretch;
  }
  
  .action-button {
    flex: 1;
  }
}

@media (max-width: 768px) {
  .editor-layout {
    flex-direction: column;
  }
  
  .slide-sidebar {
    width: 100%;
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid #e2e8f0;
  }
  
  .slides-list {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.5rem;
  }
  
  .slide-thumbnail {
    min-width: 120px;
    margin-bottom: 0;
  }
  
  .slide-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .slide-controls {
    justify-content: stretch;
  }
  
  .control-button {
    flex: 1;
  }
}