.mermaid svg {
  cursor: zoom-in;
}

.mermaid-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.mermaid-overlay svg {
  background: white;
  border-radius: 8px;
  padding: 24px;
  max-width: 90vw;
  max-height: 90vh;
}