diff --git a/src/SQLInsight.Web/wwwroot/app.css b/src/SQLInsight.Web/wwwroot/app.css
index 697a40c..e3d66e8 100644
--- a/src/SQLInsight.Web/wwwroot/app.css
+++ b/src/SQLInsight.Web/wwwroot/app.css
@@ -238,3 +238,7 @@ button.button.secondary { background: var(--surface-2); color: var(--text); bord
 button.button.danger { background: var(--critical); }
 tr.muted td { color: var(--text-2); }
 .instances tr.paused td { opacity: .7; }
+
+/* 1.5: the synthetic check form groups the fields of each kind. */
+.support-form fieldset { display: grid; gap: .9rem; border: 1px solid var(--border); border-radius: 8px; padding: .9rem 1rem; margin: 0; }
+.support-form legend { font-weight: 600; color: var(--text); padding: 0 .3rem; }