{{- $noindex := .Params.noindex | default false -}}
{{ if and (hugo.IsProduction) (not $noindex) -}}
{{ else -}}
{{ end -}}
{{ partialCached "favicons.html" . -}}
{{- if .IsHome -}}
{{ .Site.Title -}}
{{ else -}}
{{ with .Title }}{{ . }} – {{ end -}}
{{ .Site.Title -}}
{{ end -}}
{{- with .Params.canonical -}}
{{- else -}}
{{- end -}}
{{- partial "opengraph.html" . -}}
{{- partial "schema.html" . -}}
{{- partial "twitter_cards.html" . -}}
{{- $mainCss := resources.Get "css/compiled/main.css" -}}
{{- $customCss := resources.Get "css/custom.css" -}}
{{- $variablesCss := resources.Get "css/variables.css" | resources.ExecuteAsTemplate "css/variables.css" . -}}
{{- /* Production build */ -}}
{{- if hugo.IsProduction }}
{{- $styles := slice $variablesCss $mainCss $customCss | resources.Concat "css/compiled/main.css" | minify | fingerprint }}
{{- /* Theme development mode (non-production + theme environment) */ -}}
{{- else if eq hugo.Environment "theme" }}
{{- $devStyles := resources.Get "css/styles.css" | postCSS (dict "inlineImports" true) }}
{{- /* User local development */ -}}
{{- else }}
{{- $styles := resources.Get "css/compiled/main.css" -}}
{{- end }}
{{- if and hugo.IsProduction .Site.Config.Services.GoogleAnalytics.ID }}
{{ partial "google-analytics.html" . -}}
{{- end }}
{{ $noop := .WordCount -}}
{{ if .Page.Store.Get "hasMath" -}}
{{ $katexBaseUrl := "https://cdn.jsdelivr.net/npm/katex@latest/dist" }}
{{ $katexCssUrl := printf "%s/katex%s.css" $katexBaseUrl (cond hugo.IsProduction ".min" "") -}}
{{ $katexFontPattern := "url(fonts/" }}
{{ $katexFontSubstituted := printf "url(%s/fonts/" $katexBaseUrl }}
{{ with try (resources.GetRemote $katexCssUrl) -}}
{{ with .Err -}}
{{ errorf "Could not retrieve KaTeX css file from %s. Reason: %s." $katexCssUrl . -}}
{{ else with .Value -}}
{{ $katexCssContent := strings.Replace .Content $katexFontPattern $katexFontSubstituted }}
{{ with resources.FromString (printf "css/katex%s.css" (cond hugo.IsProduction ".min" "")) $katexCssContent -}}
{{ $cssHash := . | fingerprint "sha512" -}}
{{ end -}}
{{ end -}}
{{ end -}}
{{ end -}}
{{ partial "custom/head-end.html" . -}}