Give the header scrolled colours and equal card heights in 1.11.1

Cards, quotes and call-to-action bands side by side in a row are equal in
height again: the stacking margin meant for a column no longer applies inside
a row. The header can carry a second set of colours for the scrolled page,
the Flatsome transparent header: a "scrolled" state next to "hover", limited
to colours, shadow and opacity, marked by a small script only where it is
used, plus a setting that lets the header float over the first section.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

templates/archive.html.twig

@@ -19,12 +19,13 @@
     <link rel="stylesheet" href="/assets/site.css?v={{ kant_version() }}">
     <link rel="stylesheet" href="/assets/buttons.css?v={{ kant_version() }}">
     <link rel="stylesheet" href="/assets/design.css?v={{ kant_version() }}">
+    {% if needsScrolled|default(false) %}<script type="module" src="/assets/scrolled.js?v={{ kant_version() }}"></script>{% endif %}
 </head>
 {% set consentOpen = not editing|default(false) and consentGate.needsBanner(app.request) %}
 <body class="kant{{ consentOpen ? ' consent-open' : '' }}">
     <a class="skip-link" href="#main">Zum Inhalt springen</a>
     {% if areas.header|default(null) %}
-    <header class="site-header{{ siteSettings.load().stickyHeader ? ' is-sticky' : '' }}">
+    <header class="site-header{{ siteSettings.load().stickyHeader ? ' is-sticky' : '' }}{{ siteSettings.load().headerOverlay ? ' is-overlay' : '' }}">
         {% for block in areas.header.blocks %}{% include 'blocks/block.html.twig' with {block: block, postLists: {}, forms: {}, breadcrumbs: [], navigation: navigation|default({}), sections: sections|default({}), richText: true, richHeadings: areas.header.schemaVersion|default(1) >= 17, eagerImage: null} only %}{% endfor %}
     </header>
     {% endif %}