<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
  <title>
    {{- if eq .Title .Site.Title -}}
      {{ .Site.Title }}
    {{- else -}}
      {{ .Title }} | {{ .Site.Title }}
    {{- end -}}
  </title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="supported-color-schemes" content="light dark" />
  <meta name="author" content="{{ .Site.Params.Author }}" />
  <meta name="robots" content="index,follow" />
  <link rel="shortcut icon" type="image/x-icon" href="{{ .Site.BaseURL }}img/{{ .Site.Params.favicon }}">

  <!-- Identities -->
  {{- range .Site.Params.identities -}}
    <link href="{{.}}" rel="me"/>
  {{ end -}}

  <!-- Webmentions -->
  <link rel="webmention" href="https://webmention.io/brandonrozek.com/webmention" />
  <link rel="pingback" href="https://webmention.io/brandonrozek.com/xmlrpc" />

  <!-- RSS / Alternative Links -->
  {{- if .IsHome -}}
  <link rel="alternate" type="application/json" href="{{ .Site.BaseURL }}blog/index.json" title="Brandon Rozek's Blog" />
  <link rel="alternate" type="application/rss+xml" href="{{ .Site.BaseURL }}blog/index.xml" title="Brandon Rozek's Blog" />
  <link rel="alternate" type="application/json" href="{{ .Site.BaseURL }}presentations/index.json" title="Brandon Rozek's Presentations}" />
  <link rel="alternate" type="application/rss+xml" href="{{ .Site.BaseURL }}presentations/index.xml" title="Brandon Rozek's Presentations" />
  {{ else }}
  {{ range .AlternativeOutputFormats -}}
    {{ printf `<link rel="%s" type="%s" href="%s" title="%s" />` .Rel .MediaType.Type .Permalink $.Site.Title | safeHTML }}
  {{ end }}
  {{ end -}}

  <!-- CSS -->
  {{- $style := resources.Get "css/style.css" -}}
  {{- $markdown := resources.Get "css/markdown.css" -}}
  {{- $fontawesome := resources.Get "css/fontawesome.css" -}}
  {{- $syntaxHighlight := resources.Get "css/syntax-highlight.css" -}}
  {{ $css := slice $style $markdown $fontawesome $syntaxHighlight | resources.Concat "css/style.css" | resources.Minify | resources.Fingerprint }}
  <link rel="stylesheet" href="{{ $css.Permalink }}" integrity="{{ $css.Data.Integrity }}">
  {{- $styleDark := resources.Get "css/style-dark.css" -}}
  {{- $markdownDark := resources.Get "css/markdown-dark.css" -}}
  {{ $cssDark := slice $styleDark $markdownDark | resources.Concat "css/style-dark.css" | resources.Minify | resources.Fingerprint }}
  <link rel="stylesheet" href="{{ $cssDark.Permalink }}" media="(prefers-color-scheme: dark)" integrity="{{ $cssDark.Data.Integrity }}">
  <!-- <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.1/css/all.css" integrity="sha384-50oBUHEmvpQ+1lW4y57PTFmhCaXp0ML5d60M1M7uH2+nqUivzIebhndOJK28anvf" crossorigin="anonymous"> -->

  <!-- custom css -->
  {{- range .Site.Params.custom_css -}}
    <link rel="stylesheet" href="{{ . }}">
  {{ end -}}

  {{/* NOTE: These Hugo Internal Templates can be found starting at https://github.com/gohugoio/hugo/tree/master/tpl/tplimpl/embedded/templates */}}
  {{- template "_internal/opengraph.html" . -}}
  {{- template "_internal/schema.html" . -}}
  <!-- {{- template "_internal/twitter_cards.html" . -}} -->
  {{- partial "twitter_cards.html" . -}}

  <!-- Polyfill for old browsers -->
  {{ `<!--[if lte IE 9]>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js"></script>
  <![endif]-->` | safeHTML }}

  {{ `<!--[if lt IE 9]>
  <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
  <![endif]-->` | safeHTML }}

  <!-- MathJax -->
  {{- if or .Params.math .Site.Params.math -}}
    {{ partial "mathjax_support.html" . }}
  {{- end -}}
</head>