/* ── Nav ── */

/* Page header (sticky) */
.page-header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  padding: 14px 0 10px;
  margin-bottom: 28px;
  z-index: 100;
}
.page-header::after {
  content: "";
  position: absolute;
  left: -28px;
  right: -28px;
  top: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: -1;
}
.page-header-label {
  font-size: var(--text-3xs);
  letter-spacing: 0.5px;
  color: var(--color-text-tertiary);
  margin-bottom: 2px;
}
.page-header-title {
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  letter-spacing: 0.5px;
  color: var(--color-text);
  margin: 0;
}

/* Breadcrumb navigation */
.breadcrumb-link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--weight-medium);
}
.breadcrumb-link:hover {
  text-decoration: underline;
}
.breadcrumb-sep {
  color: var(--color-border);
  margin: 0 var(--space-2);
}
.breadcrumb-context {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}