diff --git a/wwwroot/model_plaza.css b/wwwroot/model_plaza.css
index 27da119..1fd9bf7 100644
--- a/wwwroot/model_plaza.css
+++ b/wwwroot/model_plaza.css
@@ -40,6 +40,23 @@
 	background-color: var(--sage-hover, rgba(99, 102, 241, 0.08));
 }
 
+/* Dark mode overrides for sidebar */
+[data-theme="dark"] .plaza-sidebar {
+	border-right: 1px solid #334155;
+	background-color: #1E293B;
+}
+
+[data-theme="dark"] .plaza-nav-btn {
+	background-color: transparent;
+	color: #CBD5E1;
+	border: none;
+}
+
+[data-theme="dark"] .plaza-nav-btn:hover {
+	background-color: #334155;
+	color: #F1F5F9;
+}
+
 /* Card hover effects for model cards */
 .plaza-card {
 	transition: transform 0.2s ease, box-shadow 0.2s ease;