.diagram-shell {
  display: flex;
  height: 100%;
}

.diagram-canvas {
  flex: 1;
  min-width: 0;
  height: 100%;
}

.diagram-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 280px;
}

/*
 * opacity/pointer-events, not display:none — hiding via display collapses the
 * handle to 0x0, and xyflow computes edge paths from the handle's actual
 * layout position, so every edge that references a handle id would snap to
 * a degenerate point the moment view mode hid it.
 */
.diagram-flow--view-mode .react-flow__handle {
  opacity: 0;
  pointer-events: none;
}

/*
 * React Flow's built-in disabled styling only dims <svg> children (for the
 * zoom/fit/lock icon buttons) — our undo/redo controls use plain text glyphs,
 * so they need their own dimming or they'd look clickable while inert.
 */
.react-flow__controls-button:disabled {
  opacity: 0.4;
}

.diagram-alignment-guide {
  position: absolute;
  background: #ff0072;
  pointer-events: none;
  z-index: 1000;
}

.diagram-node {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 6px 10px;
  border: 1px solid #555;
  border-radius: 6px;
  background: canvas;
  color: canvastext;
  font-size: 12px;
  text-align: center;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.diagram-node__label {
  color: white;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.diagram-node__badge {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid #555;
  background: canvas;
  font-size: 11px;
  line-height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.diagram-node__caption {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 4px;
  max-width: 120px;
  font-size: 11px;
  text-align: center;
  color: canvastext;
  white-space: pre-wrap;
}

.diagram-node--circle {
  padding: 0;
  border-radius: 50%;
}

.diagram-node--startEvent {
  border-width: 1px;
}

.diagram-node--endEvent {
  border-width: 3px;
}

.diagram-node--intermediateEvent {
  border-width: 1px;
}

.diagram-node--intermediateEvent::after {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid #555;
  border-radius: 50%;
}

.diagram-node--gateway-outer {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Diamond via clip-path on an unrotated box — see the comment in nodes.tsx for why. */
.diagram-node--diamond-bg {
  position: absolute;
  inset: 0;
  border: 1px solid #555;
  box-sizing: border-box;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.diagram-node__icon {
  position: relative;
  display: inline-block;
  color: white;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.diagram-aside {
  width: 340px;
  flex-shrink: 0;
  border-left: 1px solid color-mix(in srgb, currentcolor 20%, transparent);
  padding: 12px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diagram-aside__hint {
  opacity: 0.7;
  font-size: 13px;
}

.diagram-aside__json summary {
  cursor: pointer;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.7;
}

.diagram-aside__json pre {
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

.node-inspector {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-inspector__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-inspector__toolbar {
  display: flex;
  gap: 8px;
}

.node-inspector__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.node-inspector__label,
.node-inspector__description {
  white-space: pre-wrap;
}

.node-inspector__meta {
  margin: 0;
  font-size: 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 8px;
}

.node-inspector__meta dt {
  opacity: 0.7;
}

.node-inspector__meta dd {
  margin: 0;
}