{#-
  Override of zensical/templates/partials/header.html.

  Alloy header: thin sticky header, brand on the left, search pill in the
  middle-right, palette toggle + repo source on the far right. Keeps the stock
  search label trigger for mobile, where the runtime watches the __search
  checkbox.
-#}
{% set class = "md-header md-header--alloy" %}
{% if "navigation.tabs.sticky" in features %}
  {% set class = class ~ " md-header--shadow md-header--lifted" %}
{% elif "navigation.tabs" not in features %}
  {% set class = class ~ " md-header--shadow" %}
{% endif %}
<header class="{{ class }}" data-md-component="header">
  <nav class="md-header__inner md-grid" aria-label="{{ lang.t('header') }}">

    {# Mobile drawer toggle - only shown on small viewports via CSS. #}
    <label class="md-header__button md-icon md-header__drawer-toggle" for="__drawer" aria-label="{{ lang.t('nav') }}">
      {% set icon = config.theme.icon.menu or "material/menu" %}
      {% include ".icons/" ~ icon ~ ".svg" %}
    </label>

    {# Brand: logo + site name. #}
    <a href="{{ config.extra.homepage | d(nav.homepage.url, true) | url }}"
       title="{{ config.site_name | e }}"
       class="md-header__brand"
       aria-label="{{ config.site_name }}"
       data-md-component="logo">
      <span class="md-header__logo">
        {% include "partials/logo.html" %}
      </span>
      <span class="md-header__sitename">{{ config.site_name }}</span>
    </a>

    {# Spacer - pushes everything to the right. #}
    <div class="md-header__spacer" aria-hidden="true"></div>

    {# Search pill (command-palette button). #}
    {% if "search" in config.plugins %}
      {% set search = config.plugins["search"] | attr("config") %}
      {% if search.enabled %}
        <label class="md-header__button md-icon md-header__search-toggle" for="__search" aria-label="{{ lang.t('search') }}">
          {% set icon = config.theme.icon.search or "material/magnify" %}
          {% include ".icons/" ~ icon ~ ".svg" %}
        </label>
        {% include "partials/search.html" %}
      {% endif %}
    {% endif %}

    {# Palette toggle (light/dark). #}
    {% if config.theme.palette %}
      {% if not config.theme.palette is mapping %}
        {% include "partials/palette.html" %}
      {% endif %}
    {% endif %}
    {% if not config.theme.palette is mapping %}
      {% include "partials/javascripts/palette.html" %}
    {% endif %}

    {# Alternate languages. #}
    {% if config.extra.alternate %}
      {% include "partials/alternate.html" %}
    {% endif %}

    {# Repo source. #}
    {% if config.repo_url %}
      <div class="md-header__source">
        {% include "partials/source.html" %}
      </div>
    {% endif %}
  </nav>
  {% if "navigation.tabs.sticky" in features %}
    {% if "navigation.tabs" in features %}
      {% include "partials/tabs.html" %}
    {% endif %}
  {% endif %}
</header>