{{ $page := .Page }}
{{ $hasToc := .HasToc | default false }}
<header id="site-header">
  {{ if $hasToc }}
  <button id="toc-toggle" aria-label="Toggle menu" aria-expanded="false" aria-controls="toc">
    <span></span><span></span><span></span>
  </button>
  {{ end }}
  <div id="site-masthead">
    <div id="site-title"><a href="/"><img src="/logo-sm.png" alt="" width="34" height="34" id="site-logo">SpecDD</a></div>
    <p id="site-subtitle">{{ $page.Site.Params.description }}</p>
  </div>
  <nav id="site-nav">
    <a href="/articles/" class="nav-primary">Articles</a>
    <a href="/news/">News</a>
    <a href="https://github.com/specdd/specdd" target="_blank" rel="noopener">GitHub</a>
    <button id="theme-toggle" class="theme-toggle" type="button" aria-label="Toggle color theme" aria-pressed="false">
      <svg class="theme-toggle-icon theme-toggle-icon-light" xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" width="24" height="24" aria-hidden="true" focusable="false">
        <path d="M565-395q35-35 35-85t-35-85q-35-35-85-35t-85 35q-35 35-35 85t35 85q35 35 85 35t85-35Zm-226.5 56.5Q280-397 280-480t58.5-141.5Q397-680 480-680t141.5 58.5Q680-563 680-480t-58.5 141.5Q563-280 480-280t-141.5-58.5ZM200-440H40v-80h160v80Zm720 0H760v-80h160v80ZM440-760v-160h80v160h-80Zm0 720v-160h80v160h-80ZM256-650l-101-97 57-59 96 100-52 56Zm492 496-97-101 53-55 101 97-57 59Zm-98-550 97-101 59 57-100 96-56-52ZM154-212l101-97 55 53-97 101-59-57Zm326-268Z"/>
      </svg>
      <svg class="theme-toggle-icon theme-toggle-icon-dark" xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" width="24" height="24" aria-hidden="true" focusable="false">
        <path d="M480-120q-150 0-255-105T120-480q0-150 105-255t255-105q14 0 27.5 1t26.5 3q-41 29-65.5 75.5T444-660q0 90 63 153t153 63q55 0 101-24.5t75-65.5q2 13 3 26.5t1 27.5q0 150-105 255T480-120Zm0-80q88 0 158-48.5T740-375q-20 5-40 8t-40 3q-123 0-209.5-86.5T364-660q0-20 3-40t8-40q-78 32-126.5 102T200-480q0 116 82 198t198 82Zm-10-270Z"/>
      </svg>
      <span class="sr-only">Toggle color theme</span>
    </button>
  </nav>
</header>