diff --git a/src/admin/pages/site/panels/AgentPanel/AgentPanel.module.css b/src/admin/pages/site/panels/AgentPanel/AgentPanel.module.css
index 318423d45..3943e20d6 100644
--- a/src/admin/pages/site/panels/AgentPanel/AgentPanel.module.css
+++ b/src/admin/pages/site/panels/AgentPanel/AgentPanel.module.css
@@ -10,7 +10,10 @@
   --panel-h: 480px;
   left: var(--panel-x);
   top: var(--panel-y);
-  z-index: 50;
+  /* Matches the shared FloatingWindow layer (90), which is the floating tier
+     above the sidebars (85). At 50 this sat *below* a docked sidebar panel and
+     became unreachable. The docked variant resets to auto below. */
+  z-index: 90;
   width: var(--panel-w);
   height: var(--panel-h);
   min-width: 280px;
diff --git a/src/admin/pages/site/panels/PropertiesPanel/PropertiesPanel.module.css b/src/admin/pages/site/panels/PropertiesPanel/PropertiesPanel.module.css
index 5f846ed25..022ab086e 100644
--- a/src/admin/pages/site/panels/PropertiesPanel/PropertiesPanel.module.css
+++ b/src/admin/pages/site/panels/PropertiesPanel/PropertiesPanel.module.css
@@ -12,7 +12,10 @@
     left: var(--panel-x);
     top: var(--panel-y);
     bottom: auto;
-    z-index: 50;
+    /* Matches the shared FloatingWindow layer (90), which is the floating tier
+       above the sidebars (85). At 50 this sat *below* a docked sidebar panel.
+       The docked variant resets to auto below. */
+    z-index: 90;
     display: flex;
     flex-direction: column;
     width: var(--panel-w);