{#-
  Zensical has no counterpart to the `social` plugin of Material for MkDocs,
  which rendered a card per page. Until it does, every page points at the same
  card, `docs/assets/social-card.png`. Title and description are still per page.

  Before touching this file, check whether Zensical has gained social card
  support in the meantime. If it has, drop this partial, `main.html`, the
  `extends` in `home.html` and the card asset, and configure the plugin instead.
-#}
{#- Zensical leaves `page.is_homepage` unset, the home page is the one without a URL -#}
{% if not page.url %}
  {% set title = config.site_name %}
{% elif page.meta and page.meta.title %}
  {% set title = page.meta.title ~ " - " ~ config.site_name %}
{% elif page.title %}
  {% set title = page.title | striptags ~ " - " ~ config.site_name %}
{% else %}
  {% set title = config.site_name %}
{% endif %}
{% if page.meta and page.meta.description %}
  {% set description = page.meta.description %}
{% else %}
  {% set description = config.site_description %}
{% endif %}
{#- Under mike, `site_url` carries the version prefix and loses its trailing slash -#}
{% set base = config.site_url | d("", true) %}
{% set card = (base ~ "/assets/social-card.png") | replace("//assets", "/assets") %}
<meta property="og:type" content="website">
<meta property="og:site_name" content="{{ config.site_name }}">
<meta property="og:title" content="{{ title }}">
<meta property="og:description" content="{{ description }}">
{% if page.canonical_url %}
  <meta property="og:url" content="{{ page.canonical_url }}">
{% endif %}
<meta property="og:image" content="{{ card }}">
<meta property="og:image:type" content="image/png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta property="og:image:alt" content="{{ description }}">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="{{ title }}">
<meta name="twitter:description" content="{{ description }}">
<meta name="twitter:image" content="{{ card }}">