{{- $page := . -}}
{{- $bib := slice "book" "article" "inbook" "inproceedings" "phdthesis" "techreport" "websites" -}}
<nav class="site-navbar">
  <ul id="menu" class="menu">
    {{ range .Site.Menus.main -}}
      {{- $active := false -}}
      {{- if eq .URL "/" -}}
        {{- $active = $page.IsHome -}}
      {{- else if hasPrefix $page.RelPermalink .URL -}}
        {{- $active = true -}}
      {{- else if and (eq .URL "/notes/") (in $bib $page.Section) -}}
        {{- $active = true -}}
      {{- end }}
      <li class="menu-item">
        <a class="menu-item-link{{ if $active }} active{{ end }}"{{ if $active }} aria-current="page"{{ end }} href="{{ .URL | safeURL }}">{{ .Name }}</a>
      </li>
    {{- end }}
  </ul>
</nav>