Differentiate survey template shell

contao/templates/frontend/_survey_assets.html.twig

@@ -82,6 +82,14 @@
         border-radius: 2rem;
         box-shadow: 0 28px 80px rgba(34, 34, 34, 0.08);
         padding: clamp(1.5rem, 2.2vw, 2.4rem);
+        margin-bottom: 4em;
+    }
+
+    .survey-shell--template {
+        background:
+            radial-gradient(circle at top left, rgba(236, 124, 50, 0.18), transparent 32%),
+            radial-gradient(circle at bottom right, rgba(157, 82, 118, 0.12), transparent 36%),
+            linear-gradient(180deg, rgba(252, 228, 214, 0.92) 0%, rgba(255, 250, 246, 0.98) 52%, rgba(252, 228, 214, 0.78) 100%);
     }
 
     .survey-shell h2,

contao/templates/frontend/member_survey_list.html.twig

@@ -8,7 +8,7 @@
 {% set moduleHeadline = (headline is iterable ? headline.text|default('') : headline|default(''))|striptags|trim %}
 {% set templatesOnly = templatesOnly|default(false) %}
 
-<section class="survey-shell survey-grid">
+<section class="survey-shell survey-grid{{ templatesOnly ? ' survey-shell--template' : '' }}">
     {% for message in app.flashes('success') %}
         <div class="survey-alert success">{{ message }}</div>
     {% endfor %}