{{- /*
  tag-nav.html — renders all site tags as a navigable tag cloud.
  
  Usage in a layout:
    {{ partial "tag-nav.html" . }}
  
  Outputs: <nav data-role="tag-cloud"> with links to each tag page.
  The (N) count shows how many pages have each tag.
*/ -}}
{{- $tags := .Site.Taxonomies.tags -}}
{{- if $tags }}
<nav data-role="tag-cloud" aria-label="Browse by tag">
  {{- range $name, $pages := $tags }}
  {{- $tagPage := site.GetPage (printf "/tags/%s" ($name | urlize)) }}
  <a href="{{ if $tagPage }}{{ $tagPage.Permalink }}{{ else }}{{ print site.BaseURL "tags/" ($name | urlize) "/" }}{{ end }}" data-tag="{{ $name }}">
    {{ $name -}}
    <small>({{ len $pages }})</small>
  </a>
  {{- end }}
</nav>
{{- end }}