.presentations-list {
  min-height: 100vh;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

/* Header */
.list-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.header-content {
  flex: 1;
  min-width: 0;
}

.header-content h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.header-content p {
  margin: 0.5rem 0 0 0;
  color: var(--text-secondary);
  font-size: 1rem;
}

.header-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

.action-button {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  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 {
  background: #2563eb;
}

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

.action-button.secondary:hover {
  background: #f1f5f9;
  color: #475569;
}

.action-button.large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Main Content */
.list-content {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* Empty State */
.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  text-align: center;
}

.empty-content h2 {
  margin: 0 0 0.5rem 0;
  color: var(--text-secondary);
  font-size: 1.5rem;
}

.empty-content p {
  margin: 0 0 2rem 0;
  color: var(--text-tertiary);
  font-size: 1rem;
}

/* Presentations Grid */
.presentations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.presentation-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.presentation-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Card Header */
.card-header {
  padding: 1.5rem 1.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

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

.presentation-name {
  margin: 0 0 0.5rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.presentation-description {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.presentation-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.action-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.action-icon:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}

.action-icon.delete:hover:not(:disabled) {
  background: var(--bg-error);
  border-color: var(--border-error);
}

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

/* Card Content */
.card-content {
  padding: 0 1.5rem;
  flex: 1;
}

.presentation-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.theme-name {
  background: var(--color-blue-100);
  color: var(--color-blue-800);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  display: inline-block;
}

.slides-count {
  color: var(--color-emerald-600);
  font-weight: 600;
}

.presentation-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border-primary);
}

.meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.meta-value {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Card Footer */
.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-primary);
  display: flex;
  gap: 0.5rem;
}

.card-action {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

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

.card-action.primary:hover {
  background: #2563eb;
}

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

.card-action.secondary:hover {
  background: #f1f5f9;
  color: #475569;
}

/* List Footer */
.list-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  border-top: 1px solid var(--border-primary);
  gap: 1rem;
  flex-wrap: wrap;
}

.summary-stats p {
  margin: 0;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.footer-actions {
  display: flex;
  gap: 1rem;
}

/* Loading and Error States */
.loading-content,
.error-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  gap: 1rem;
}

.loading-spinner {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

.error-content h2 {
  color: var(--text-error);
  margin: 0;
}

.error-content p {
  color: var(--text-secondary);
  margin: 0.5rem 0 1.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .list-header {
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .header-actions {
    justify-content: stretch;
  }
  
  .action-button {
    flex: 1;
  }
  
  .list-content {
    padding: 1rem;
  }
  
  .presentations-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .card-header {
    padding: 1rem 1rem 0.5rem;
  }
  
  .presentation-actions {
    flex-direction: column;
  }
  
  .presentation-stats {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .list-footer {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  
  .footer-actions {
    justify-content: stretch;
  }
}

@media (max-width: 480px) {
  .presentations-grid {
    grid-template-columns: 1fr;
  }
  
  .card-footer {
    flex-direction: column;
  }
  
  .card-action {
    padding: 0.75rem;
  }
}