diff --git a/lib/pages/PlatEdit_screen.dart b/lib/pages/PlatEdit_screen.dart
index 78261bc..69cf6c5 100644
--- a/lib/pages/PlatEdit_screen.dart
+++ b/lib/pages/PlatEdit_screen.dart
@@ -26,16 +26,11 @@ class MenuPlat {
 class MenuCategory {
   final int id;
   final String nom;
-  final String? description;
 
-  MenuCategory({required this.id, required this.nom, this.description});
+  MenuCategory({required this.id, required this.nom});
 
   factory MenuCategory.fromJson(Map<String, dynamic> json) {
-    return MenuCategory(
-      id: json['id'],
-      nom: json['nom'],
-      description: json['description'],
-    );
+    return MenuCategory(id: json['id'], nom: json['nom']);
   }
 
   @override
@@ -227,16 +222,13 @@ class _PlatEditPageState extends State<PlatEditPage> {
                         Expanded(
                           child: InkWell(
                             onTap: () async {
-                              final result = await showDialog<
-                                List<MenuCategory>
-                              >(
+                              final result = await showDialog<MenuCategory?>(
                                 context: context,
                                 builder: (context) {
-                                  // temp inside a StatefulBuilder so state changes refresh UI
-                                  Set<int> temp =
-                                      selectedCategories
-                                          .map((e) => e.id)
-                                          .toSet();
+                                  MenuCategory? temp =
+                                      selectedCategories.isNotEmpty
+                                          ? selectedCategories.first
+                                          : null;
 
                                   return StatefulBuilder(
                                     builder: (context, setStateDialog) {
@@ -249,18 +241,15 @@ class _PlatEditPageState extends State<PlatEditPage> {
                                               mainAxisSize: MainAxisSize.min,
                                               children:
                                                   widget.categories.map((cat) {
-                                                    return CheckboxListTile(
-                                                      value: temp.contains(
-                                                        cat.id,
-                                                      ),
+                                                    return RadioListTile<
+                                                      MenuCategory
+                                                    >(
+                                                      value: cat,
+                                                      groupValue: temp,
                                                       title: Text(cat.nom),
-                                                      onChanged: (checked) {
+                                                      onChanged: (value) {
                                                         setStateDialog(() {
-                                                          if (checked == true) {
-                                                            temp.add(cat.id);
-                                                          } else {
-                                                            temp.remove(cat.id);
-                                                          }
+                                                          temp = value;
                                                         });
                                                       },
                                                     );
@@ -271,15 +260,11 @@ class _PlatEditPageState extends State<PlatEditPage> {
                                         actions: [
                                           TextButton(
                                             onPressed: () {
-                                              final newList =
-                                                  widget.categories
-                                                      .where(
-                                                        (cat) => temp.contains(
-                                                          cat.id,
-                                                        ),
-                                                      )
-                                                      .toList();
-                                              Navigator.pop(context, newList);
+                                              if (temp != null) {
+                                                Navigator.pop(context, temp);
+                                              } else {
+                                                Navigator.pop(context, null);
+                                              }
                                             },
                                             child: const Text('OK'),
                                           ),
@@ -290,37 +275,22 @@ class _PlatEditPageState extends State<PlatEditPage> {
                                 },
                               );
 
-                              if (result != null)
-                                setState(() => selectedCategories = result);
+                              if (result != null) {
+                                setState(() => selectedCategories = [result]);
+                              }
                             },
                             child: InputDecorator(
                               decoration: const InputDecoration(
-                                labelText: "Catégories *",
+                                labelText: "Catégorie *",
                                 border: OutlineInputBorder(gapPadding: 2),
                               ),
-                              child: Wrap(
-                                spacing: 6,
-                                runSpacing: -8,
-                                children:
-                                    selectedCategories.isEmpty
-                                        ? [
-                                          const Text(
-                                            "Aucune sélection",
-                                            style: TextStyle(
-                                              color: Colors.grey,
-                                            ),
-                                          ),
-                                        ]
-                                        : selectedCategories
-                                            .map(
-                                              (c) => Chip(
-                                                label: Text(c.nom),
-                                                visualDensity:
-                                                    VisualDensity.compact,
-                                              ),
-                                            )
-                                            .toList(),
-                              ),
+                              child:
+                                  selectedCategories.isEmpty
+                                      ? const Text(
+                                        "Aucune sélection",
+                                        style: TextStyle(color: Colors.grey),
+                                      )
+                                      : Text(selectedCategories.first.nom),
                             ),
                           ),
                         ),
diff --git a/lib/pages/menus_screen.dart b/lib/pages/menus_screen.dart
index 6e1be89..283101e 100644
--- a/lib/pages/menus_screen.dart
+++ b/lib/pages/menus_screen.dart
@@ -254,21 +254,12 @@ class _PlatsManagementScreenState extends State<PlatsManagementScreen> {
                                   ),
                                 Row(
                                   children: [
-                                    if (p.categories.isNotEmpty)
-                                      Wrap(
-                                        spacing: 4,
-                                        runSpacing: 4,
-                                        children:
-                                            p.categories
-                                                .map(
-                                                  (c) => CategoryChip(
-                                                    label: c.nom,
-                                                    color: Colors.black,
-                                                  ),
-                                                )
-                                                .toList(),
-                                      ),
-                                    if (p.categories.isEmpty)
+                                    if (p.category != null)
+                                      CategoryChip(
+                                        label: p.category!.nom,
+                                        color: Colors.black,
+                                      )
+                                    else
                                       const CategoryChip(
                                         label: "Catégorie",
                                         color: Colors.black,
@@ -378,8 +369,7 @@ class MenuPlat {
   final String? commentaire;
   final double prix;
   final String? ingredients;
-  final int disponible = 1; // Default to true
-  final List<MenuCategory> categories; // NOW A LIST!
+  final MenuCategory? category; // single category
 
   MenuPlat({
     required this.id,
@@ -387,7 +377,7 @@ class MenuPlat {
     this.commentaire,
     required this.prix,
     this.ingredients,
-    required this.categories,
+    this.category,
   });
 
   factory MenuPlat.fromJson(Map<String, dynamic> json) {
@@ -404,12 +394,14 @@ class MenuPlat {
       commentaire: json['commentaire'],
       prix: parsePrix(json['prix']),
       ingredients: json['ingredients'],
-      categories:
-          (json['categories'] as List? ?? [])
-              .map((c) => MenuCategory.fromJson(c))
-              .toList(),
+      category:
+          json['category'] != null
+              ? MenuCategory.fromJson(json['category'])
+              : null,
     );
   }
+
+  get disponible => null;
 }
 
 class CategoryChip extends StatelessWidget {
@@ -477,8 +469,7 @@ class _EditPlatDialogState extends State<EditPlatDialog> {
     prix = widget.plat.prix;
     var disponible = widget.plat.disponible;
     // cat = (widget.plat.categories) as MenuCategory?;
-    cat =
-        widget.plat.categories.isNotEmpty ? widget.plat.categories.first : null;
+    cat = widget.plat.category;
   }
 
   Future<void> submit() async {
@@ -542,6 +533,7 @@ class _EditPlatDialogState extends State<EditPlatDialog> {
               isExpanded: true,
               items:
                   widget.categories
+                      .toSet()
                       .map(
                         (c) => DropdownMenuItem(value: c, child: Text(c.nom)),
                       )