docs/source/_templates/layout.html

<!--
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regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
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with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

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software distributed under the License is distributed on an
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specific language governing permissions and limitations
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{# Comet docs layout — extends pydata_sphinx_theme to add a project footer.
   All client-side enhancements live in _static/comet-ux.js, registered via
   html_js_files in conf.py. #}

{% extends "pydata_sphinx_theme/layout.html" %}

{# Font loading: use the print→all swap pattern so Google Fonts doesn't
   block first paint. preconnect warms up the connection; the stylesheet
   is requested non-blocking and then promoted to apply once loaded. The
   <noscript> fallback covers JS-disabled browsers. #}
{% block extrahead %}
{{ super() }}
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="preload" as="style"
      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap">
<link rel="stylesheet"
      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap"
      media="print" onload="this.media='all'">
<noscript>
  <link rel="stylesheet"
        href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap">
</noscript>
{% endblock %}

{% block footer %}
<footer class="comet-footer" role="contentinfo">
  <div class="comet-footer__inner">

    <!-- Brand: logo only — no duplicated tagline -->
    <a class="comet-footer__brand" href="{{ pathto('index') }}" aria-label="Apache DataFusion Comet — home">
      <img src="{{ pathto('_static/images/DataFusionComet-Logo-Light.png', 1) }}"
           class="comet-footer__logo only-light"
           width="3256" height="836"
           loading="lazy" decoding="async"
           alt="" />
      <img src="{{ pathto('_static/images/DataFusionComet-Logo-Dark.png', 1) }}"
           class="comet-footer__logo only-dark pst-js-only"
           width="3256" height="836"
           loading="lazy" decoding="async"
           alt="" />
    </a>

    <!-- Two compact link columns: documentation + community -->
    <nav class="comet-footer__links" aria-label="Footer navigation">
      <div class="comet-footer__col">
        <div class="comet-footer__col-title">Documentation</div>
        <a href="{{ pathto('user-guide/index') }}">User Guide</a>
        <a href="{{ pathto('contributor-guide/index') }}">Contributor Guide</a>
        <a href="{{ pathto('changelog/index') }}">Changelog</a>
      </div>

      <div class="comet-footer__col">
        <div class="comet-footer__col-title">Community</div>
        <a href="https://github.com/apache/datafusion-comet" target="_blank" rel="noopener">GitHub</a>
        <a href="https://datafusion.apache.org/contributor-guide/communication.html" target="_blank" rel="noopener">Slack &amp; Discord</a>
        <a href="https://apache.org" target="_blank" rel="noopener">Apache Software Foundation</a>
      </div>
    </nav>
  </div>

  <!-- Legal: license, copyright, trademark — single quiet line -->
  <div class="comet-footer__legal">
    <p>
      &copy; 2023&ndash;2026 Apache Software Foundation &nbsp;·&nbsp;
      Licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0" target="_blank" rel="noopener">Apache License 2.0</a>
    </p>
    <p class="comet-footer__trademark">
      Apache DataFusion, Apache DataFusion Comet, the Apache feather logo, and the Apache DataFusion project logo are trademarks of The Apache Software Foundation.
    </p>
  </div>
</footer>
{% endblock %}