<!DOCTYPE html>
<html lang="{{ .Site.LanguageCode | default "en-us" }}">
<head>

  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="generator" content="Source Themes Academic {{ .Site.Data.academic.version }}">
  {{ .Hugo.Generator }}
  {{ with .Site.Params.name }}<meta name="author" content="{{ . }}">{{ end }}

  {{ $scr := .Scratch }}
  {{/* Generate page description. */}}
  {{ $desc := "" }}
  {{ if .Params.summary }}
    {{ $desc = .Params.summary }}
  {{ else if .Params.abstract }}
    {{ $desc = .Params.abstract }}
  {{ else if .IsPage }}
    {{ $desc = .Summary }}
  {{ else if .Site.Params.description }}
    {{ $desc = .Site.Params.description }}
  {{ else }}
    {{ $desc = .Site.Params.role }}
  {{ end }}
  <meta name="description" content="{{ $desc }}">

  {{ range .Translations }}
  <link rel="alternate" hreflang="{{ .Lang }}" href="{{ .Permalink }}">
  {{ end }}
  <link rel="alternate" hreflang="{{ .Site.LanguageCode | default "en-us" }}" href="{{ .Permalink }}">

  {{ partial "css/parse_theme.css" . }}
  {{ $css := .Site.Data.assets.css }}
  {{ $js := .Site.Data.assets.js }}
  {{ if ne ($scr.Get "primary") "#fff" }}
  <meta name="theme-color" content="{{ $scr.Get "primary" }}">
  {{ end }}

  {{/* Attempt to load local vendor CSS, otherwise load from CDN. */}}
  {{ $scr.Set "vendor_css_filename" "main.min.css" }}
  {{ $scr.Set "vendor_js_filename" "main.min.js" }}
  {{ if and (fileExists (printf "static/css/vendor/%s" ($scr.Get "vendor_css_filename"))) (fileExists (printf "static/js/vendor/%s" ($scr.Get "vendor_js_filename"))) }}
    {{ $scr.Set "use_cdn" 0 }}
    <link rel="stylesheet" href="{{ printf "/css/vendor/%s" ($scr.Get "vendor_css_filename") | relURL }}">
  {{ else }}
    {{ $scr.Set "use_cdn" 1 }}
    {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.bootstrap.url $css.bootstrap.version) $css.bootstrap.sri | safeHTML }}
    {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.academicons.url $css.academicons.version) $css.academicons.sri | safeHTML }}
    {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.fontAwesome.url $css.fontAwesome.version) $css.fontAwesome.sri | safeHTML }}
    {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.fancybox.url $css.fancybox.version) $css.fancybox.sri | safeHTML }}

    {{/* Default to enabling highlighting, but allow the user to override it in .Params or .Site.Params.
         Use $scr to store "highlight_enabled", so that we can read it again in footer.html. */}}
    {{ $scr.Set "highlight_enabled" true }}
    {{ if isset .Params "highlight" }}
      {{ $scr.Set "highlight_enabled" .Params.highlight }}
    {{ else if isset .Site.Params "highlight" }}
      {{ $scr.Set "highlight_enabled" .Site.Params.highlight }}
    {{ end }}
    {{ if ($scr.Get "highlight_enabled") }}
      {{ $v := $css.highlight.version }}
      {{ with .Site.Params.highlight_style }}
        {{ printf "<link rel=\"stylesheet\" href=\"%s\" crossorigin=\"anonymous\">" (printf $css.highlight.url $css.highlight.version .) | safeHTML }}
      {{ else }}
        {{ if eq ($scr.Get "light") true }}
          {{ printf "<link rel=\"stylesheet\" href=\"%s\" crossorigin=\"anonymous\">" (printf $css.highlight.url $css.highlight.version "github") | safeHTML }}
        {{ else }}
          {{ printf "<link rel=\"stylesheet\" href=\"%s\" crossorigin=\"anonymous\">" (printf $css.highlight.url $css.highlight.version "dracula") | safeHTML }}
        {{ end }}
      {{ end }}
    {{ end }}

    {{ if or (eq .Site.Params.map 2) (eq .Site.Params.map 3) }}
    {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.leaflet.url $css.leaflet.version) $css.leaflet.sri | safeHTML }}
    {{ end }}

    {{ if eq .Site.Params.search.engine 2 }}
      {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.instantsearch.url $css.instantsearch.version) $css.instantsearch.sri | safeHTML }}
      {{ printf "<link rel=\"stylesheet\" href=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\">" (printf $css.instantsearchTheme.url $css.instantsearchTheme.version) $css.instantsearchTheme.sri | safeHTML }}
    {{ end }}

  {{ end }}

  {{/* We cannot use SRI with Google Fonts because the CSS is dynamically generated according to the user agent. */}}
  {{ with ($scr.Get "google_fonts") }}
  <link rel="stylesheet" {{ printf "href=//fonts.googleapis.com/css?family=%s" . | safeHTMLAttr }}>
  {{ end }}

  <link rel="stylesheet" href="{{ "styles.css" | relLangURL }}">
  {{ range .Site.Params.custom_css }}
  <link rel="stylesheet" href="{{ "/css/" | relURL }}{{ . }}">
  {{ end }}

  {{ if not .Site.IsServer }}
  {{ if .Site.GoogleAnalytics }}
    <script>
      window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
      ga('create', '{{ .Site.GoogleAnalytics }}', 'auto');
      {{ if .Site.Params.privacy_pack }}ga('set', 'anonymizeIp', true);{{ end }}
      ga('require', 'eventTracker');
      ga('require', 'outboundLinkTracker');
      ga('require', 'urlChangeTracker');
      ga('send', 'pageview');
    </script>
    <script async src="//www.google-analytics.com/analytics.js"></script>
    {{ if ($scr.Get "use_cdn") }}
    {{ printf "<script async src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.autotrack.url $js.autotrack.version) $js.autotrack.sri | safeHTML }}
    {{ end }}
  {{ end }}
  {{ end }}

  {{ if or .Site.RSSLink .RSSLink }}
  <link rel="alternate" href="{{ .RSSLink | default .Site.RSSLink  }}" type="application/rss+xml" title="{{ .Site.Title }}">
  <link rel="feed" href="{{ .RSSLink | default .Site.RSSLink }}" type="application/rss+xml" title="{{ .Site.Title }}">
  {{ end }}

  <link rel="manifest" href="{{ "site.webmanifest" | relURL }}">
  <link rel="icon" type="image/png" href="{{ "/img/icon.png" | relURL }}">
  <link rel="apple-touch-icon" type="image/png" href="{{ "/img/icon-192.png" | relURL }}">

  <link rel="canonical" href="{{ .Permalink }}">

  <meta property="twitter:card" content="summary_large_image">
  {{ with .Site.Params.twitter }}
  <meta property="twitter:site" content="@{{ . }}">
  <meta property="twitter:creator" content="@{{ . }}">
  {{ end }}
  <meta property="og:site_name" content="{{ .Site.Title }}">
  <meta property="og:url" content="{{ .Permalink }}">
  <meta property="og:title" content="{{ if not .IsHome }}{{ .Title }} | {{ end }}{{ .Site.Title }}">
  <meta property="og:description" content="{{ $desc }}">
  {{ $og_image := "" }}
  {{ if .Params.header.image }}
    {{ $og_image = .Params.header.image }}
  {{ else if .Site.Params.sharing_image }}
    {{ $og_image = .Site.Params.sharing_image }}
  {{ else }}
    {{ $og_image = "icon-192.png" }}
  {{ end }}
  {{- with $og_image }}<meta property="og:image" content="{{ printf "img/%s" . | absURL }}">{{end}}
  <meta property="og:locale" content="{{ .Site.LanguageCode | default "en-us" }}">
  {{ if .IsPage }}
  {{ if not .PublishDate.IsZero }}<meta property="article:published_time" content="{{ .PublishDate.Format "2006-01-02T15:04:05-07:00" | safeHTML }}">
  {{ else if not .Date.IsZero }}<meta property="article:published_time" content="{{ .Date.Format "2006-01-02T15:04:05-07:00" | safeHTML }}">{{ end }}
  {{ if not .Lastmod.IsZero }}<meta property="article:modified_time" content="{{ .Lastmod.Format "2006-01-02T15:04:05-07:00" | safeHTML }}">{{ end }}
  {{ else }}
  {{ if not .Date.IsZero }}<meta property="og:updated_time" content="{{ .Date.Format "2006-01-02T15:04:05-07:00" | safeHTML }}">{{ end }}
  {{ end }}

  {{ partial "cookie_consent" . }}
  {{ partial "head_custom" . }}

  <title>{{ if not .IsHome }}{{ .Title }} | {{ end }}{{ .Site.Title }}</title>

</head>
<body id="top" data-spy="scroll" data-target="{{ if or .IsHome .Params.widgets }}#navbar-main{{ else }}#TableOfContents{{ end }}" data-offset="71" {{ if not ($scr.Get "light") }}class="dark"{{ end }}>
