.map-intro {
  max-width: 820px;
  margin-bottom: 38px;
  color: var(--muted);
  font-size: 17px;
}

.site-tree {
  display: grid;
  gap: 24px;
}

.tree-root {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  padding: 12px 16px;
  color: var(--white);
  background: var(--navy);
  border-radius: var(--radius);
  font-weight: 800;
}

.tree-root::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
}

.tree-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tree-branch {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 32px rgba(16, 25, 39, .07);
}

.branch-head {
  display: block;
  padding: 22px 24px;
  color: var(--white);
  background: var(--sage-dark);
}

.branch-head small {
  display: block;
  margin-bottom: 6px;
  color: #e3c28e;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.branch-head h2 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: 23px;
}

.branch-head:hover { background: var(--navy); }

.branch-links {
  display: grid;
  margin: 0;
  padding: 8px 0;
  list-style: none;
}

.branch-links a {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 20px;
  gap: 8px;
  align-items: center;
  padding: 13px 20px;
  color: #35404b;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.branch-links li:last-child a { border-bottom: 0; }

.branch-links a::before {
  content: "↳";
  color: var(--gold-dark);
  font-size: 17px;
}

.branch-links a::after {
  content: "→";
  color: var(--sage);
}

.branch-links a:hover {
  color: var(--sage-dark);
  background: var(--soft);
}

.articles-tree {
  margin-top: 6px;
  padding: 25px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.articles-tree h2 {
  color: var(--navy);
  font-size: 28px;
}

.articles-tree > p {
  margin: 9px 0 18px;
  color: var(--muted);
}

.article-tree-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-weight: 800;
}

.article-tree-link span {
  color: var(--gold-dark);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.article-tree-link:hover {
  border-color: var(--sage);
  box-shadow: var(--shadow);
}

.tree-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 38px 0 0;
}

.summary-item {
  padding: 20px;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.summary-item strong {
  display: block;
  color: var(--navy);
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: 30px;
}

.summary-item span {
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 800px) {
  .tree-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .tree-summary { grid-template-columns: 1fr; }
  .article-tree-link { align-items: flex-start; flex-direction: column; }
}