diff --git a/Bootstrap_new/css/theme-modern.css b/Bootstrap_new/css/theme-modern.css
index d601dd4a..148bea9b 100644
--- a/Bootstrap_new/css/theme-modern.css
+++ b/Bootstrap_new/css/theme-modern.css
@@ -384,7 +384,7 @@ h1, h2, h3, h4, h5, h6, .fw-bold, .fw-semibold {
 /* Sous-menu actif : Barre verticale discrète */
 .sidebar-nav .nav-content li a.active-submenu {
   color: #FFFFFF;
-  background: rgba(255, 255, 255, 0.1);
+  background: rgba(255, 255, 255, 1);
   font-weight: 600;
   position: relative;
   padding-left: 10px;