.diagram-viewer-open {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0.4rem 0 0.2rem;
  padding: 0.35rem 0.7rem;
  border: 0.05rem solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  background: var(--md-default-bg-color);
  color: var(--md-primary-fg-color);
  font: inherit;
  font-size: 0.75rem;
  line-height: 1.2;
  cursor: pointer;
}

.diagram-viewer-open::before {
  content: "";
  width: 0.85rem;
  height: 0.85rem;
  background: currentcolor;
  clip-path: polygon(
    8% 8%,
    46% 8%,
    46% 20%,
    28% 20%,
    60% 52%,
    52% 60%,
    20% 28%,
    20% 46%,
    8% 46%,
    8% 8%,
    54% 8%,
    92% 8%,
    92% 46%,
    80% 46%,
    80% 28%,
    48% 60%,
    40% 52%,
    72% 20%,
    54% 20%
  );
}

.diagram-viewer-open:hover,
.diagram-viewer-open:focus-visible {
  border-color: var(--md-primary-fg-color);
  background: var(--md-accent-fg-color--transparent);
}

.diagram-viewer-target {
  cursor: zoom-in;
  overflow-x: auto;
}

.diagram-viewer-target:focus-visible {
  outline: 0.12rem solid var(--md-accent-fg-color);
  outline-offset: 0.2rem;
}

.diagram-viewer[hidden] {
  display: none;
}

.diagram-viewer {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  padding: 1rem;
}

.diagram-viewer__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 0.72);
}

.diagram-viewer__dialog {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: min(96vw, 76rem);
  max-height: 92vh;
  margin: auto;
  overflow: hidden;
  border: 0.05rem solid var(--md-default-fg-color--lightest);
  border-radius: 0.4rem;
  background: var(--md-default-bg-color);
  box-shadow: var(--md-shadow-z3);
}

.diagram-viewer__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.8rem;
  border-bottom: 0.05rem solid var(--md-default-fg-color--lightest);
  background: var(--md-code-bg-color);
}

.diagram-viewer__title {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--md-default-fg-color);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.diagram-viewer__controls {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.35rem;
}

.diagram-viewer__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  min-height: 2rem;
  padding: 0 0.55rem;
  border: 0.05rem solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font: inherit;
  font-size: 0.75rem;
  line-height: 1;
  cursor: pointer;
}

.diagram-viewer__button--wide {
  min-width: 3.2rem;
}

.diagram-viewer__button:hover,
.diagram-viewer__button:focus-visible {
  border-color: var(--md-primary-fg-color);
  color: var(--md-primary-fg-color);
}

.diagram-viewer__zoom {
  min-width: 3rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.75rem;
  text-align: center;
}

.diagram-viewer__viewport {
  min-height: 16rem;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 1rem;
  cursor: grab;
  touch-action: none;
  background: var(--md-default-bg-color);
}

.diagram-viewer__viewport:focus-visible {
  outline: 0.12rem solid var(--md-accent-fg-color);
  outline-offset: -0.12rem;
}

.diagram-viewer__viewport--panning {
  cursor: grabbing;
  user-select: none;
}

.diagram-viewer__stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 100%;
  min-height: 100%;
}

.diagram-viewer__svg {
  flex: 0 0 auto;
  display: block;
  height: auto;
  max-width: none;
}

.diagram-viewer-is-open {
  overflow: hidden;
}

@media screen and (max-width: 44.9375em) {
  .diagram-viewer {
    padding: 0.45rem;
  }

  .diagram-viewer__dialog {
    width: 100%;
    max-height: 96vh;
  }

  .diagram-viewer__toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .diagram-viewer__title {
    white-space: normal;
  }

  .diagram-viewer__controls {
    flex-wrap: wrap;
  }

  .diagram-viewer__button {
    flex: 1 1 auto;
  }

  .diagram-viewer__viewport {
    min-height: 70vh;
    padding: 0.6rem;
  }
}