.callout {
  background: #fff;
  border-left: 4px solid var(--bs-primary);
  border-radius: 0.5rem;
  padding: 1.25rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform .2s ease, box-shadow .2s ease;
  margin-bottom: 32px;
}