diff --git a/client/src/App.css b/client/src/App.css
index ed30b3d..a260bb8 100644
--- a/client/src/App.css
+++ b/client/src/App.css
@@ -36,12 +36,15 @@
   color: var(--primary-light);
 }
 
-/* Custom logo image sizing */
+/* Square logo: fixed equal width/height to match a 1:1 image */
 .brand-logo {
+  width: 2.5rem;
   height: 2.5rem;
-  width: auto;
   object-fit: contain;
+  object-position: center;
   display: block;
+  border-radius: 4px;
+  flex-shrink: 0;
 }
 
 .brand-icon {
@@ -108,7 +111,9 @@
     font-size: 1.25rem;
   }
   
+  /* Scale square logo down on mobile */
   .brand-logo {
+    width: 2rem;
     height: 2rem;
   }