diff --git a/lib/aprsme_web/components/layouts/map.html.heex b/lib/aprsme_web/components/layouts/map.html.heex
index 71f08f7..06194de 100644
--- a/lib/aprsme_web/components/layouts/map.html.heex
+++ b/lib/aprsme_web/components/layouts/map.html.heex
@@ -33,9 +33,9 @@
       transition: right 0.3s ease-in-out !important;
   }
 
-  /* Desktop slideover behavior for map */
+  /* Desktop slideover behavior for map - default to sidebar open */
   @media (min-width: 1024px) {
-      #aprs-map.slideover-open {
+      #aprs-map {
           right: 352px !important;
       }
 
diff --git a/lib/aprsme_web/live/map_live/components.ex b/lib/aprsme_web/live/map_live/components.ex
index 55b27aa..3eb36ab 100644
--- a/lib/aprsme_web/live/map_live/components.ex
+++ b/lib/aprsme_web/live/map_live/components.ex
@@ -278,9 +278,9 @@ defmodule AprsmeWeb.MapLive.Components do
         transition: right 0.3s ease-in-out;
       }
 
-      /* Desktop styles */
+      /* Desktop styles - default to sidebar open */
       @media (min-width: 1024px) {
-        #aprs-map.slideover-open {
+        #aprs-map {
           right: 352px;
         }
 
@@ -305,8 +305,11 @@ defmodule AprsmeWeb.MapLive.Components do
         overflow: hidden;
       }
 
-      .slideover-panel.slideover-open {
-        transform: translateX(0);
+      /* Desktop: default to visible, only hide when explicitly closed */
+      @media (min-width: 1024px) {
+        .slideover-panel {
+          transform: translateX(0);
+        }
       }
 
       .slideover-panel.slideover-closed {