/* Mermaid Diagram Pan & Zoom Styles */

/* Wrapper: visible interactive canvas */
.mermaid-zoom-wrapper {
  position: relative;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  overflow: hidden;
  margin: 1.5em 0;
  background: var(--md-code-bg-color);
}

/* Viewport: the scrollable/pannable area */
.mermaid-zoom-viewport {
  overflow: hidden;
  min-height: 300px;
  max-height: 80vh;
  margin: 0;
  padding: 1.5em;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
}

/* SVG: allow transform, remove size constraints */
.mermaid-zoom-viewport svg {
  transition: transform 0.1s ease-out;
  max-width: none !important;
  max-height: none !important;
}

/* Zoom control buttons */
.mermaid-zoom-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  z-index: 10;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.mermaid-zoom-wrapper:hover .mermaid-zoom-controls {
  opacity: 1;
}

.mermaid-zoom-btn {
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 4px;
  width: 32px;
  height: 32px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, border-color 0.15s;
  line-height: 1;
  padding: 0;
}

.mermaid-zoom-btn:hover {
  background: var(--md-accent-fg-color);
  color: var(--md-accent-bg-color);
  border-color: var(--md-accent-fg-color);
}

.mermaid-zoom-btn.mermaid-zoom-reset {
  width: auto;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Hint text */
.mermaid-zoom-wrapper::after {
  content: "Scroll to zoom \00B7 Drag to pan \00B7 Double-click to reset";
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--md-default-fg-color--light);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  white-space: nowrap;
}

.mermaid-zoom-wrapper:hover::after {
  opacity: 0.7;
}