.post-content .mermaid {
  margin: 1.25rem 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--entry);
  overflow-x: auto;
  overflow-y: hidden;
  cursor: zoom-in;
}

.post-content .mermaid svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  margin: 0 auto;
}

.post-content .mermaid svg foreignObject {
  overflow: visible;
}

.mermaid-lightbox__canvas svg foreignObject {
  overflow: visible;
}

.post-content .mermaid .label foreignObject div,
.post-content .mermaid .nodeLabel,
.mermaid-lightbox__canvas .label foreignObject div,
.mermaid-lightbox__canvas .nodeLabel {
  line-height: 1.2;
}

.mermaid-lightbox-open {
  overflow: hidden;
}

.mermaid-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.84);
  padding: 2rem;
}

.mermaid-lightbox.is-open {
  display: flex;
}

.mermaid-lightbox__canvas {
  width: min(96vw, 1500px);
  max-width: min(96vw, 1500px);
  max-height: 90vh;
  overflow: auto;
  background: var(--entry);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1rem;
}

.mermaid-lightbox__canvas svg {
  display: block;
  max-width: none;
  height: auto;
}

.mermaid-lightbox__close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--entry);
  color: var(--primary);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}