.diagram-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0 var(--space-xl);
}
.diagram-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: white;
  padding: var(--space-md);
}
.diagram-card h3 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
  font-size: 18px;
  font-family: var(--font-body);
  font-weight: 600;
  color: #2B2B2B;
}
.diagram-card svg {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #FCFBF9;
  display: block;
}
.reading-links {
  margin: var(--space-md) 0 var(--space-lg);
  font-size: 15px;
}
.reading-links ul {
  margin: 8px 0 0 20px;
}
.reading-links li {
  margin-bottom: 4px;
}
.media-grid.compact {
  gap: var(--space-sm);
  margin: var(--space-md) 0 var(--space-lg);
}
.media-grid.compact figure {
  margin: 0;
}
.media-grid.compact img {
  height: 170px;
  object-fit: cover;
}
.media-grid.three {
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin: var(--space-md) 0 var(--space-lg);
}
.media-grid.three figure {
  margin: 0;
}
.media-grid.three img {
  height: 170px;
  object-fit: cover;
}
@media (max-width: 760px) {
  .media-grid.compact img { height: 150px; }
  .media-grid.three { grid-template-columns: 1fr; }
  .media-grid.three img { height: 150px; }
}