.diagram-viewer {
  cursor: zoom-in;
  outline-offset: 0.3rem;
  position: relative;
}

.diagram-viewer:focus-visible {
  outline: 0.15rem solid var(--md-accent-fg-color);
}

.diagram-viewer-hint {
  background: var(--md-code-bg-color);
  border: 0.05rem solid var(--md-default-fg-color--lighter);
  border-radius: 999px;
  bottom: 0.25rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.65rem;
  opacity: 0;
  padding: 0.2rem 0.55rem;
  pointer-events: none;
  position: absolute;
  right: 0.25rem;
  transition: opacity 0.15s ease-in-out;
}

.diagram-viewer:hover .diagram-viewer-hint,
.diagram-viewer:focus-visible .diagram-viewer-hint {
  opacity: 1;
}

.diagram-lightbox {
  background: var(--md-default-bg-color);
  border: 0;
  border-radius: 0.4rem;
  box-shadow: var(--md-shadow-z3);
  color: var(--md-default-fg-color);
  height: min(90vh, 64rem);
  max-height: none;
  max-width: min(96vw, 96rem);
  padding: 0;
  width: min(96vw, 96rem);
}

.diagram-lightbox::backdrop {
  background: rgb(0 0 0 / 70%);
}

.diagram-lightbox__header {
  align-items: center;
  border-bottom: 0.05rem solid var(--md-default-fg-color--lighter);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.85rem 1rem;
}

.diagram-lightbox__header p {
  font-weight: 700;
  margin: 0;
}

.diagram-lightbox__controls {
  align-items: center;
  display: flex;
  gap: 0.4rem;
}

.diagram-lightbox__controls button {
  background: var(--md-code-bg-color);
  border: 0.05rem solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  color: inherit;
  cursor: pointer;
  font: inherit;
  min-height: 2rem;
  padding: 0.15rem 0.55rem;
}

.diagram-lightbox__controls button:hover,
.diagram-lightbox__controls button:focus-visible {
  border-color: var(--md-accent-fg-color);
}

.diagram-lightbox__controls output {
  min-width: 3.3rem;
  text-align: center;
}

.diagram-lightbox__help {
  color: var(--md-default-fg-color--light);
  font-size: 0.75rem;
  margin: 0;
  padding: 0.5rem 1rem;
}

.diagram-lightbox__viewport {
  align-items: center;
  display: flex;
  height: calc(100% - 7rem);
  justify-content: center;
  overflow: hidden;
}

.diagram-lightbox__canvas {
  cursor: grab;
  max-height: 90%;
  max-width: 90%;
  transform-origin: center;
  transition: transform 0.1s ease-out;
  width: 90%;
}

.diagram-lightbox__canvas.is-dragging {
  cursor: grabbing;
  transition: none;
}

.diagram-lightbox__canvas svg {
  display: block;
  height: auto;
  max-height: 100%;
  max-width: 100%;
  width: auto;
}

@media screen and (max-width: 44.9375em) {
  .diagram-lightbox {
    height: 100vh;
    max-width: 100vw;
    width: 100vw;
  }

  .diagram-lightbox__header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }
}