{# Derived entirely from site.sections + front-matter weight. There is no
   hand-maintained link list any more, so the sidebar cannot drift from the
   content tree. Add a page, give it a weight, and it appears here. #}
<aside class="docs-sidebar">
  <details class="docs-navigation" open>
    <summary class="docs-navigation-toggle">Documentation</summary>
    <nav class="manual-nav" aria-label="Documentation">
      {% for sec in site.sections | sort(attribute="weight") %}
      {% if sec.name != "" %}
      <details class="nav-group"{% if page.section == sec.name %} open{% endif %}>
        <summary>{{ sec.title | e }}</summary>
        <ul class="nav-links">
          <li><a href="{{ base_url }}{{ sec.url }}"{% if page.url == sec.url %} class="active" aria-current="page"{% endif %}>Overview</a></li>
          {% for p in sec.pages | rejectattr("is_index") | sort(attribute="weight") %}
          <li><a href="{{ base_url }}{{ p.url }}"{% if page.url == p.url %} class="active" aria-current="page"{% endif %}>{{ p.title | e }}</a></li>
          {% endfor %}
        </ul>
      </details>
      {% endif %}
      {% endfor %}
    </nav>
  </details>
</aside>