diff --git a/aider/website/_includes/head_custom.html b/aider/website/_includes/head_custom.html
index 9831d13d3..4ef264500 100644
--- a/aider/website/_includes/head_custom.html
+++ b/aider/website/_includes/head_custom.html
@@ -21,6 +21,11 @@
     text-decoration: none;
     letter-spacing: 0.5px;
   }
+
+  /* Sidebar gradient styling to match hero section */
+  .side-bar {
+    background: linear-gradient(135deg, rgba(20, 176, 20, 0.15) 0%, rgba(20, 176, 20, 0.1) 25%, rgba(201, 214, 255, 0.7) 50%, rgba(179, 198, 255, 0.8) 75%, rgba(163, 189, 255, 0.9) 100%);
+  }
 </style>
 <link rel="alternate" type="application/rss+xml" title="RSS Feed" href="{{ site.url }}/feed.xml">
 <link rel="preconnect" href="https://fonts.gstatic.com">