<head>

<meta charset="utf-8">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">

{% assign page_title = '' %}
{% if page.title == "Home" %}
    {% capture page_title %}
      {{ site.title }} | {{ site.description }}
      {%if paginator and paginator.page != 1 %} - {{ paginator.page }}{% endif %}
    {% endcapture %}
{% else %}
    {% capture page_title %}
        {%if page.slug == 'category' %}Category: {% endif %}
        {%if page.slug == 'tag' %}Tag: {% endif %} {{ page.title }} | {{ site.title }}
    {% endcapture %}
{% endif %}
{% capture page_title %}
    {{ page_title | strip | rstrip | lstrip | escape | strip_newlines }}
{% endcapture %}

<title>{{ page_title }}</title>

{% assign page_description = '' %}
{% capture page_description %}
    {% if page.description %}
        {{ page.description | strip_html | strip | rstrip | strip_newlines | truncate: 160 }}
    {% else %}
        {{ site.description }}
    {% endif %}
    {%if paginator and paginator.page != 1 %} - {{ paginator.page }} {% endif %}
    {%if page.slug == 'category' %} Category: {{ page.title }}{% endif %}
    {%if page.slug == 'tag' %} Tag: {{ page.title }}{% endif %}
{% endcapture %}

{% capture page_description %}
    {{ page_description | strip | rstrip | lstrip | escape | strip_newlines }}
{% endcapture %}

<meta name="description" content="{{ page_description }}">
<meta name="keywords" content="{% if page.keywords %}{{ page.keywords }}{% else %}{{ site.keywords }}{% endif %}">

<meta name="HandheldFriendly" content="True">
<meta name="MobileOptimized" content="320">

{% assign page_image = '' %}
{% capture page_image %}
    {% if page.cover %}
        {{ page.cover | prepend: site.baseurl | prepend: site.url }}
    {% else %}
        {{ site.cover | prepend: site.baseurl | prepend: site.url }}
    {% endif %}
{% endcapture %}
{% capture page_image %}{{ page_image | strip | rstrip | lstrip | escape | strip_newlines }}{% endcapture %}

<!-- Social: Facebook / Open Graph -->

{% if page.id %}

<meta property="og:type" content="article">
<meta property="article:author" content="{{ site.author.name }}">
<meta property="article:section" content="{{ page.categories | join: ', ' }}">
<meta property="article:tag" content="{{ page.keywords }}">
<meta property="article:published_time" content="{{ page.date }}">

{% else%}

<meta property="og:type" content="website">

{% endif %}

<meta property="og:url" content="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
<meta property="og:title" content="{{ page_title }}">
<meta property="og:image" content="{{ page_image }}">
<meta property="og:description" content="{{ page_description }}">
<meta property="og:site_name" content="{{ site.author.name }}">
<meta property="og:locale" content="en_US">

<!-- Social: Twitter -->
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="{{ site.twitter_username }}">
<meta name="twitter:title" content="{{ page_title }}">
<meta name="twitter:description" content="{{ page_description }}">
<meta name="twitter:image:src" content="{{ page_image }}">

<!-- Social: Google+ / Schema.org  -->
<meta itemprop="name" content="{{ page_title }}">
<meta itemprop="description" content="{{ page_description }}">
<meta itemprop="image" content="{{ page_image }}">

<!-- Canonical link tag -->
<link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
<link rel="alternate" type="application/rss+xml" title="{{ site.title }}" href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}">

<!-- rel prev and next -->
{% if paginator.previous_page %}
  <link rel="prev" href="{{ paginator.previous_page_path | prepend: site.baseurl | prepend: site.url }}">
{% endif %}
{% if paginator.next_page %}
  <link rel="next" href="{{ paginator.next_page_path | prepend: site.baseurl | prepend: site.url }}">
{% endif %}

<link rel="stylesheet" href="{{ "/assets/css/main.css" | prepend: site.baseurl | prepend: site.url }}">

</head>