/* Tree view styles — minimal, SVG handles most rendering */

.tree-container {
  position: relative;
  user-select: none;
  -webkit-user-select: none;
}

.tree-svg text {
  pointer-events: none;
  stroke: #000;
  stroke-width: 3px;
  paint-order: stroke fill;
}

.tree-svg text.opening-label {
  pointer-events: auto;
  cursor: pointer;
}

.tree-svg text.opening-label:hover {
  text-decoration: underline;
  opacity: 1 !important;
}

.tree-svg circle,
.tree-svg polygon {
  cursor: pointer;
}

.tree-svg .ghost-hit:hover ~ circle {
  opacity: 1;
}

/* First-visit hint */
.tree-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: #dcdcdc;
  font-size: 14px;
  line-height: 1.8;
  padding: 12px 20px;
  border-radius: 8px;
  text-align: center;
  z-index: 520;
  white-space: nowrap;
}

.tree-hint-dismiss {
  display: block;
  margin: 8px auto 0;
  background: none;
  border: 1px solid #666;
  color: #999;
  font-size: 11px;
  padding: 2px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.tree-hint-dismiss:hover {
  color: #dcdcdc;
  border-color: #999;
}

/* Zoom controls */
.tree-zoom-bar {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 3px;
  z-index: 510;
}

.tree-zoom-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 4px;
  background: rgba(80, 80, 80, 0.7);
  color: #dcdcdc;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
  transition: background 0.15s;
}

.tree-zoom-btn:hover {
  background: rgba(100, 100, 100, 0.9);
}

/* Annotation context menu */
.anno-menu {
  position: fixed;
  z-index: 2000;
  background: #373532;
  border: 1px solid #646464;
  border-radius: 6px;
  padding: 4px 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  min-width: 160px;
  font-family: 'Inter', system-ui, sans-serif;
}

.anno-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  cursor: pointer;
  color: #dcdcdc;
  font-size: 13px;
  transition: background 0.1s;
}

.anno-menu-item:hover {
  background: #4a4845;
}

.anno-menu-item.anno-menu-active {
  background: #3c5a3c;
}

.anno-menu-sym {
  font-weight: 700;
  font-size: 16px;
  min-width: 24px;
  text-align: center;
}

.anno-menu-label {
  color: #bbb;
}