diff --git a/Bootstrap_new/css/style_office.css b/Bootstrap_new/css/style_office.css
index 4c46a06..e804e7f 100644
--- a/Bootstrap_new/css/style_office.css
+++ b/Bootstrap_new/css/style_office.css
@@ -253,6 +253,11 @@ body {
     margin-left: var(--sidebar-width);
 }
 
+.nav-bar.collapsed {
+  left: var(--sidebar-collapsed);
+}
+
+
 .toggle-sidebar-btn {
   font-size: 20px;
   padding-left: 15px;
diff --git a/Vue/gabarit.php b/Vue/gabarit.php
index 9ac91a3..dd7aed2 100755
--- a/Vue/gabarit.php
+++ b/Vue/gabarit.php
@@ -123,7 +123,7 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
         <link rel="manifest" href="<?= $racineWeb ?>manifest.json">
         
         <!-- 4. VOS STYLES PERSONNALISÉS (en dernier pour qu'ils dominent) -->
-        <link href="<?= $racineWeb ?>Bootstrap_new/css/style_office.css?ver=2026.01.05.01" rel="stylesheet">
+        <link href="<?= $racineWeb ?>Bootstrap_new/css/style_office.css?ver=2026.01.05.02" rel="stylesheet">
         <link href="<?= $racineWeb ?>Bootstrap_new/css/ux_enhancements.css?ver=2025.12.21.02" rel="stylesheet">
 
         <!-- ============================================
@@ -204,7 +204,7 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
         <meta name="twitter:image" content="<?= $racineWeb ?>Bootstrap_new/images/new/favicon.png">
     </head>
 
-    <body class="toggle-sidebar">
+    <body class="d-flex">
         <!-- Header -->
         <header class="app-header">
             <div class="header-content">
@@ -222,7 +222,12 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
                     </div>
                     <?php endif; ?>
 
-                    <i class="bi bi-list toggle-sidebar-btn"></i>
+                    <i class="bi bi-list toggle-sidebar-btn"
+                        data-bs-toggle="collapse"
+                        data-bs-target="#sidebar"
+                        aria-controls="sidebar"
+                        aria-expanded="true"
+                        aria-label="Basculer le menu"></i>
                 </div>
                 
                 <!-- -->
@@ -295,7 +300,7 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
         </header>
 
         <!-- Sidebar -->
-        <aside class="app-sidebar sidebar" id="sidebar">
+        <aside class="app-sidebar collapse show" id="sidebar">
             <nav class="sidebar-nav" aria-label="Navigation principale">
                 <div class="nav-section">
                     <?php foreach ($menus as $key0 => $menuParent): 
@@ -360,7 +365,7 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
         </aside>
 
         <!-- Main Content -->
-        <main class="app-main" id="mainContent">
+        <main class="app-main flex-grow-1" id="mainContent">
             <INPUT class="sr-only"  TYPE="text" id="vue" name="vue" value="<?= isset($_SESSION['vue']) ? $_SESSION['vue'] : ""; ?>">
             <input class="sr-only" type="text" id="codeSociete" name="codeSociete" value="<?= $_SESSION['codeSociete'] ?>">		
             <!-- Navigation Tabs -->
@@ -751,6 +756,21 @@ $photoAssureCrypte = $_SESSION['photoAssureCrypte'];
             });
         </script>
 
+        <script>
+            document.addEventListener("DOMContentLoaded", function () {
+                const toggleBtn = document.querySelector(".toggle-sidebar-btn");
+                const sidebar = document.querySelector(".app-sidebar");
+                const main = document.querySelector(".app-main");
+                const navBar = document.querySelector(".nav-bar");
+
+                toggleBtn.addEventListener("click", function () {
+                    sidebar.classList.toggle("collapsed");
+                    main.classList.toggle("collapsed");
+                    navBar?.classList.toggle("collapsed"); // <-- déplacé ici
+                });
+            });
+        </script>
+
 
     </body>
 </html>
