:root {
  --tree-bg: #f4f4f0;
  --tree-border: #c8c8bf;
  --tree-link: #9b9b90;
  --tree-node: #2f4f2f;
  --tree-node-bg: #fdfdf7;
  --tree-node-hover: #1d3a1d;
  --panel-bg: #fdfcf6;
}

body {
  background: linear-gradient(135deg, #f8f6ef 0%, #ede9df 100%);
}

.wiki-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem 0.5rem;
  border-bottom: 1px solid var(--tree-border);
}

.wiki-header h1 {
  margin: 0;
  font-size: 1.6rem;
}

.toolbar {
  display: flex;
  gap: 0.5rem;
}

.toolbar button {
  cursor: pointer;
  border: 1px solid var(--tree-border);
  background: var(--tree-node-bg);
  padding: 0.35rem 0.7rem;
}

.wiki-main {
  display: block;
  gap: 1.5rem;
  padding: 1rem 1.5rem 2rem;
}

.tree {
  border: 1px solid var(--tree-border);
  background: var(--tree-bg);
  min-height: 70vh;
  position: relative;
  overflow: hidden;
}

svg {
  width: 100%;
  height: 100%;
  display: block;
}

.node circle {
  fill: var(--tree-node-bg);
  stroke: var(--tree-node);
  stroke-width: 1.5px;
}

.node text {
  font-size: 12px;
  fill: var(--tree-node);
}

.node .node-globe {
  font-size: 12px;
  cursor: pointer;
  fill: var(--tree-node-hover);
}

.node-link:hover .node-globe {
  text-decoration: underline;
}


.node text.node-toggle {
  font-size: 9px;
  font-weight: 700;
  pointer-events: none;
}

.node:hover text,
.node:hover circle {
  stroke: var(--tree-node-hover);
  fill: var(--tree-node-bg);
}

.link {
  fill: none;
  stroke: var(--tree-link);
  stroke-width: 1.2px;
}

.node--collapsed circle {
  fill: #e7e6dc;
}

.node--file text {
  font-style: italic;
}

@media (max-width: 980px) {
  .wiki-main {
    padding: 1rem;
  }
}