Initial commit: Grav CMS setup with HTML reference material

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/admin/themes/grav/templates/forms/fields/element/element.html.twig

@@ -0,0 +1,23 @@
+{% extends "forms/field.html.twig" %}
+
+{% block field %}
+  {% set parent = parent_name|parent_field %}
+  {% set plain_name = (field.plain_name ?? field.name)|string %}
+  {% set name = parent ~ '.' ~ plain_name %}
+  {% if field.field %}
+    {% set fields = prepare_form_fields({(name): field.field}) %}
+  {% else %}
+    {% set fields = prepare_form_fields(field.fields, name) %}
+  {% endif %}
+
+  {% embed 'forms/default/fields.html.twig' with {name: name, fields: fields} %}
+    {% set initial_state = plain_name is not same as (parent_value|string) ? 'display: none;' %}
+    {% block outer_markup_field_open %}
+      <div id="{{ parent_name ~ '__' ~ plain_name }}" class="form-element" style="{{ initial_state }}">
+    {% endblock %}
+
+    {% block outer_markup_field_close %}
+        </div>
+    {% endblock %}
+  {% endembed %}
+{% endblock %}