.uth-diagram {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
}
.uth-diagram svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}
.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.component-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
}
.component-card h3 {
  margin: 0 0 0.5rem;
  color: var(--text-primary);
  font-size: 1.1rem;
}
.component-card .lang {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  margin-bottom: 0.5rem;
}
.component-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.6;
}
.section-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 3rem 0;
}