document.body.classList.add('support-nav-light');
(function () {
  var siteHeader = document.getElementById('siteHeader');
  var siteLogoImg = document.getElementById('siteLogoImg');

  if (siteHeader) {
    var syncHeader = function () {
      siteHeader.classList.remove('hero-theme-light');
      siteHeader.classList.add('hero-theme-dark', 'page-navbar-solid');
    };

    syncHeader();

    if (siteLogoImg) {
      var darkLogo = siteLogoImg.getAttribute('data-logo-dark');
      if (darkLogo) siteLogoImg.src = darkLogo;
    }

    window.addEventListener('scroll', syncHeader, { passive: true });
    document.addEventListener('DOMContentLoaded', syncHeader);
  }
})();