{{- /* Load main.css; minify and fingerprint in production.

       The href is built page-relative (not the resource's root-relative
       .RelPermalink, which starts with "/css/..."), so the site works when
       served under any path — e.g. previewed as a CI build artifact, not just
       at the domain root. $root is the page-relative path back to the site
       root: "" at /, "../" under /reference/. */ -}}
{{- with resources.Get "css/main.css" -}}
  {{- $css := . -}}
  {{- if not hugo.IsDevelopment -}}
    {{- $css = $css | minify | fingerprint -}}
  {{- end -}}
  {{- $rel := strings.TrimSuffix "/" (strings.TrimPrefix "/" $.RelPermalink) -}}
  {{- $root := "" -}}
  {{- if $rel -}}{{- $root = strings.Repeat (len (split $rel "/")) "../" -}}{{- end -}}
  {{- $href := printf "%s%s" $root (strings.TrimPrefix "/" $css.RelPermalink) -}}
  {{- if hugo.IsDevelopment -}}
    <link rel="stylesheet" href="{{ $href }}">
  {{- else -}}
    <link rel="stylesheet" href="{{ $href }}" integrity="{{ $css.Data.Integrity }}" crossorigin="anonymous">
  {{- end -}}
{{- end -}}