Adopt repository-configured chronicle theme

.theme/templates/layout.liquid

@@ -4,40 +4,34 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta name="description" content="{{ page.summary }}">
-    <meta name="color-scheme" content="dark light">
-    {% if page.type == "home" %}
-      <title>{{ site.title }}</title>
-    {% else %}
-      <title>{{ page.title }} · {{ site.title }}</title>
-    {% endif %}
-    {% for stylesheet in theme.styles %}
-      <link rel="stylesheet" href="{{ stylesheet }}">
-    {% endfor %}
+    <meta name="color-scheme" content="dark">
+    {% if page.type == "home" %}<title>Home — {{ site.title }}</title>{% else %}<title>{{ page.title }} — {{ site.title }}</title>{% endif %}
+    {% for stylesheet in theme.styles %}<link rel="stylesheet" href="{{ stylesheet }}">{% endfor %}
   </head>
   <body>
     <a class="skip-link" href="#main-content">Skip to content</a>
     <header class="site-header">
-      <div class="shell header-inner">
-        <a class="brand" href="/" aria-label="{{ site.title }} home">
-          <span class="brand-mark" aria-hidden="true">L</span>
-          <span>{{ site.title }}</span>
-        </a>
-        <nav class="site-nav" aria-label="Primary navigation">
-          {% for item in navigation %}
-            <a href="{{ item.route }}"{% if item.route == page.route %} aria-current="page"{% endif %}>{{ item.label }}</a>
-          {% endfor %}
-        </nav>
+      <div class="wrap">
+        <div class="header-top">
+          <div class="brand-lockup">
+            <a class="brand-mark" href="/">{{ site.title }}</a>
+            <span class="brand-tag">{{ site.presentation.tagline }}</span>
+          </div>
+          <nav class="registry" aria-label="Primary navigation">
+            {% for item in navigation %}{% if item.route != "/" %}<a href="{{ item.route }}"{% if item.route == page.route %} aria-current="page"{% endif %}>{{ item.label }}</a>{% endif %}{% endfor %}
+          </nav>
+        </div>
+        <div class="header-links">
+          <span class="file-number">{{ site.presentation.registryLabel }}</span>
+          <div class="external-links">{% for link in site.presentation.headerLinks %}<a href="{{ link.url }}">{{ link.label }}</a>{% endfor %}</div>
+        </div>
       </div>
     </header>
-
-    <main id="main-content" class="shell">
-      {{ page.body | safe_page_body }}
-    </main>
-
+    <main id="main-content">{{ page.body | safe_page_body }}</main>
     <footer class="site-footer">
-      <div class="shell footer-inner">
-        <p><strong>{{ site.title }}</strong> turns Git-owned configuration and content into a dependable website.</p>
-        <p class="footer-meta">Built from immutable sources.</p>
+      <div class="wrap footer-row">
+        <p class="footer-brand">{{ site.presentation.footerNotice }}</p>
+        <div class="footer-links">{% for link in site.presentation.footerLinks %}<a href="{{ link.url }}">{{ link.label }}</a>{% endfor %}</div>
       </div>
     </footer>
   </body>