diff --git a/public/app.js b/public/app.js
index 753132b..3b937a5 100644
--- a/public/app.js
+++ b/public/app.js
@@ -1,4 +1,4 @@
-const ACTES_FRISE = ["Prologue", "Acte 1", "Acte 2", "Acte 3", "Épilogue"];
+const ACTES_FRISE = ["Prologue", "Début", "Milieu", "Fin", "Épilogue"];
 const STATUT_TAGS = ['À revoir', 'À garder', 'À étudier'];
 
 function getStatutTag(r) {
@@ -1785,7 +1785,7 @@ let currentSceneId = null;
 let saveTimeout = null;
 let wordCounts = {}; // sceneId → word count (cached)
 
-const ACTE_ORDER = ["Prologue", 'Acte 1', 'Acte 2', 'Acte 3', "Épilogue"];
+const ACTE_ORDER = ["Prologue", 'Début', 'Milieu', 'Fin', "Épilogue"];
 
 function buildBinder() {
   const binder = document.getElementById('binder');