diff --git a/frontend/lib/screens/auth/am_register_step4_screen.dart b/frontend/lib/screens/auth/am_register_step4_screen.dart
index 909ea88..6d97e45 100644
--- a/frontend/lib/screens/auth/am_register_step4_screen.dart
+++ b/frontend/lib/screens/auth/am_register_step4_screen.dart
@@ -7,7 +7,9 @@ import 'dart:math' as math;
 import '../../models/am_registration_data.dart';
 import '../../models/card_assets.dart';
 import '../../config/display_config.dart';
+import '../../widgets/hover_relief_widget.dart';
 import '../../widgets/image_button.dart';
+import '../../widgets/custom_navigation_button.dart';
 import '../../widgets/personal_info_form_screen.dart';
 import '../../widgets/professional_info_form_screen.dart';
 import '../../widgets/presentation_form_screen.dart';
@@ -60,18 +62,62 @@ class _AmRegisterStep4ScreenState extends State<AmRegisterStep4Screen> {
                     _buildPresentation(context, registrationData),
                     const SizedBox(height: 40),
                     
-                    ImageButton(
-                      bg: 'assets/images/bg_green.png',
-                      text: 'Soumettre ma demande',
-                      textColor: const Color(0xFF2D6A4F),
-                      width: config.isMobile ? 300 : 350,
-                      height: 50,
-                      fontSize: 18,
-                      onPressed: () {
-                        print("Données AM finales: ${registrationData.firstName} ${registrationData.lastName}");
-                        _showConfirmationModal(context);
-                      },
-                    ),
+                    // Boutons Mobile (Retour + Soumettre) ou Bouton Soumettre Desktop
+                    if (config.isMobile)
+                      Padding(
+                        padding: EdgeInsets.symmetric(horizontal: screenSize.width * 0.05),
+                        child: Row(
+                          children: [
+                            Expanded(
+                              child: HoverReliefWidget(
+                                child: CustomNavigationButton(
+                                  text: 'Précédent',
+                                  style: NavigationButtonStyle.purple,
+                                  onPressed: () {
+                                    if (context.canPop()) {
+                                      context.pop();
+                                    } else {
+                                      context.go('/am-register-step3');
+                                    }
+                                  },
+                                  width: double.infinity,
+                                  height: 50,
+                                  fontSize: 16,
+                                ),
+                              ),
+                            ),
+                            const SizedBox(width: 16),
+                            Expanded(
+                              child: HoverReliefWidget(
+                                child: CustomNavigationButton(
+                                  text: 'Soumettre',
+                                  style: NavigationButtonStyle.green,
+                                  onPressed: () {
+                                    print("Données AM finales: ${registrationData.firstName} ${registrationData.lastName}");
+                                    _showConfirmationModal(context);
+                                  },
+                                  width: double.infinity,
+                                  height: 50,
+                                  fontSize: 16,
+                                ),
+                              ),
+                            ),
+                          ],
+                        ),
+                      )
+                    else
+                      ImageButton(
+                        bg: 'assets/images/bg_green.png',
+                        text: 'Soumettre ma demande',
+                        textColor: const Color(0xFF2D6A4F),
+                        width: 350,
+                        height: 50,
+                        fontSize: 18,
+                        onPressed: () {
+                          print("Données AM finales: ${registrationData.firstName} ${registrationData.lastName}");
+                          _showConfirmationModal(context);
+                        },
+                      ),
                   ],
                 ),
               ),
diff --git a/frontend/lib/screens/auth/parent_register_step5_screen.dart b/frontend/lib/screens/auth/parent_register_step5_screen.dart
index e198b84..71047e1 100644
--- a/frontend/lib/screens/auth/parent_register_step5_screen.dart
+++ b/frontend/lib/screens/auth/parent_register_step5_screen.dart
@@ -7,7 +7,9 @@ import 'dart:math' as math;
 import '../../models/user_registration_data.dart';
 import '../../models/card_assets.dart';
 import '../../config/display_config.dart';
+import '../../widgets/hover_relief_widget.dart';
 import '../../widgets/image_button.dart';
+import '../../widgets/custom_navigation_button.dart';
 import '../../widgets/personal_info_form_screen.dart';
 import '../../widgets/child_card_widget.dart';
 import '../../widgets/presentation_form_screen.dart';
@@ -72,18 +74,62 @@ class _ParentRegisterStep5ScreenState extends State<ParentRegisterStep5Screen> {
                     _buildMotivation(context, registrationData),
                     const SizedBox(height: 40),
                     
-                    ImageButton(
-                      bg: 'assets/images/bg_green.png',
-                      text: 'Soumettre ma demande',
-                      textColor: const Color(0xFF2D6A4F),
-                      width: config.isMobile ? 300 : 350,
-                      height: 50,
-                      fontSize: 18,
-                      onPressed: () {
-                        print("Données finales: ${registrationData.parent1.firstName}, Enfant(s): ${registrationData.children.length}");
-                        _showConfirmationModal(context);
-                      },
-                    ),
+                    // Boutons Mobile (Retour + Soumettre) ou Bouton Soumettre Desktop
+                    if (config.isMobile)
+                      Padding(
+                        padding: EdgeInsets.symmetric(horizontal: screenSize.width * 0.05),
+                        child: Row(
+                          children: [
+                            Expanded(
+                              child: HoverReliefWidget(
+                                child: CustomNavigationButton(
+                                  text: 'Précédent',
+                                  style: NavigationButtonStyle.purple,
+                                  onPressed: () {
+                                    if (context.canPop()) {
+                                      context.pop();
+                                    } else {
+                                      context.go('/parent-register-step4');
+                                    }
+                                  },
+                                  width: double.infinity,
+                                  height: 50,
+                                  fontSize: 16,
+                                ),
+                              ),
+                            ),
+                            const SizedBox(width: 16),
+                            Expanded(
+                              child: HoverReliefWidget(
+                                child: CustomNavigationButton(
+                                  text: 'Soumettre',
+                                  style: NavigationButtonStyle.green,
+                                  onPressed: () {
+                                    print("Données finales: ${registrationData.parent1.firstName}, Enfant(s): ${registrationData.children.length}");
+                                    _showConfirmationModal(context);
+                                  },
+                                  width: double.infinity,
+                                  height: 50,
+                                  fontSize: 16,
+                                ),
+                              ),
+                            ),
+                          ],
+                        ),
+                      )
+                    else
+                      ImageButton(
+                        bg: 'assets/images/bg_green.png',
+                        text: 'Soumettre ma demande',
+                        textColor: const Color(0xFF2D6A4F),
+                        width: 350,
+                        height: 50,
+                        fontSize: 18,
+                        onPressed: () {
+                          print("Données finales: ${registrationData.parent1.firstName}, Enfant(s): ${registrationData.children.length}");
+                          _showConfirmationModal(context);
+                        },
+                      ),
                   ],
                 ),
               ),