/* Documentation Page Component */
docs-page {
  display: block;
  height: 100%;
}

.docs-page {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* Navigation */
.docs-nav {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background: var(--bg-primary);
  border-bottom: 1px solid #e0e0e0;
  flex-shrink: 0;
}

.docs-nav-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.docs-nav-btn:hover {
  background: #f0f0f0;
  color: var(--text-primary);
}

.docs-nav-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Content */
.docs-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

.docs-section {
  display: none;
}

.docs-section.active {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.docs-section[data-section="architecture"].active {
  overflow: hidden;
}

.docs-section[data-section="architecture"] .diagram-container {
  flex: 1;
  min-height: 0;
}

.docs-section h2 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

/* Loading */
.loading {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  font-style: italic;
}

/* Error */
.error-message {
  padding: var(--spacing-md);
  background: #ffebee;
  border: 1px solid var(--color-error);
  border-radius: var(--radius-sm);
  color: var(--color-error);
}

.error-message small {
  display: block;
  margin-top: var(--spacing-xs);
  opacity: 0.8;
}

/* Video Grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.video-card {
  background: var(--bg-primary);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

.video-card:hover {
  box-shadow: var(--shadow-md);
}

.video-wrapper {
  position: relative;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: #000;
}

.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-info {
  padding: var(--spacing-sm);
}

.video-info h3 {
  font-size: 0.875rem;
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--text-primary);
}

.video-desc {
  font-size: 0.75rem;
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--text-secondary);
}

/* Video Steps */
.video-steps {
  border-top: 1px solid #e0e0e0;
  padding-top: var(--spacing-sm);
}

.steps-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
}

.steps-toggle:hover {
  text-decoration: underline;
}

.toggle-icon {
  transition: transform var(--transition-fast);
  font-size: 0.625rem;
}

.video-steps.expanded .toggle-icon {
  transform: rotate(90deg);
}

.steps-list {
  display: none;
  margin: var(--spacing-sm) 0 0 0;
  padding: 0 0 0 var(--spacing-md);
  list-style: decimal;
}

.video-steps.expanded .steps-list {
  display: block;
}

.steps-list li {
  padding: var(--spacing-xs) 0;
  font-size: 0.6875rem;
  border-bottom: 1px solid #f0f0f0;
}

.steps-list li:last-child {
  border-bottom: none;
}

.step-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-right: var(--spacing-xs);
}

.step-label::after {
  content: ':';
}

.step-desc {
  color: var(--text-secondary);
}

/* Markdown Content */
.markdown-content {
  max-width: 800px;
  line-height: 1.6;
  font-size: 0.875rem;
}

.markdown-content h1 {
  font-size: 1.5rem;
  margin: var(--spacing-lg) 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.markdown-content h2 {
  font-size: 1.25rem;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  color: var(--text-primary);
}

.markdown-content h3 {
  font-size: 1rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
  color: var(--text-primary);
}

.markdown-content h4 {
  font-size: 0.9375rem;
  margin: var(--spacing-sm) 0;
  color: var(--text-secondary);
}

.markdown-content p {
  margin: var(--spacing-sm) 0;
}

.markdown-content strong {
  color: var(--text-primary);
}

.markdown-content code {
  background: #f5f5f5;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.8125rem;
  color: #c7254e;
}

.markdown-content pre {
  background: #263238;
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: var(--spacing-md) 0;
}

.markdown-content pre code {
  background: none;
  padding: 0;
  color: #eceff1;
  font-size: 0.75rem;
  line-height: 1.5;
}

.markdown-content ul {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.markdown-content li {
  margin: var(--spacing-xs) 0;
}

.markdown-content hr {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: var(--spacing-lg) 0;
}

/* Diagram Container */
.diagram-container {
  padding: var(--spacing-md);
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.svg-wrapper {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}

.svg-wrapper svg {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}

/* Responsive */
@media (max-width: 768px) {
  .docs-nav {
    flex-wrap: wrap;
  }

  .docs-nav-btn {
    flex: 1;
    min-width: 120px;
    text-align: center;
  }

  .video-grid {
    grid-template-columns: 1fr;
  }
}