diff --git a/mon-projet/package-lock.json b/mon-projet/package-lock.json
index 412135c..9b7ab1b 100644
--- a/mon-projet/package-lock.json
+++ b/mon-projet/package-lock.json
@@ -9,7 +9,8 @@
       "version": "0.0.0",
       "dependencies": {
         "react": "^19.2.7",
-        "react-dom": "^19.2.7"
+        "react-dom": "^19.2.7",
+        "react-router-dom": "^7.18.0"
       },
       "devDependencies": {
         "@eslint/js": "^10.0.1",
@@ -1068,6 +1069,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.1.1.tgz",
+      "integrity": "sha512-ei8Aos7ja0weRpFzJnEA9UHJ/7XQmqglbRwnf2ATjcB9Wq874VKH9kfjjirM6UhU2/E5fFYadylyhFldcqSidQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -2144,6 +2158,44 @@
         "react": "^19.2.7"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.18.0",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.18.0.tgz",
+      "integrity": "sha512-pTTGt8J+ji1NOmYnjzT+bAJy/1zD+Jp4ziO6cL7T3ZLvXKtusO7BpFqlRXitqpcPVqllsIXFHRMt+2/k3Xn6HQ==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-router-dom": {
+      "version": "7.18.0",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.18.0.tgz",
+      "integrity": "sha512-Fi0yY6kgtKae/Th2xibdWK0KSdYZ4B53Gyf6wRtomOKWgpNm7H7+DyfDhncdz9FKbpS+1jmDhg3F4WoGJ+yFOA==",
+      "license": "MIT",
+      "dependencies": {
+        "react-router": "7.18.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      }
+    },
     "node_modules/rolldown": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/rolldown/-/rolldown-1.1.3.tgz",
@@ -2194,6 +2246,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.2.tgz",
+      "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw==",
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
diff --git a/mon-projet/package.json b/mon-projet/package.json
index 283dc38..9a22244 100644
--- a/mon-projet/package.json
+++ b/mon-projet/package.json
@@ -11,7 +11,8 @@
   },
   "dependencies": {
     "react": "^19.2.7",
-    "react-dom": "^19.2.7"
+    "react-dom": "^19.2.7",
+    "react-router-dom": "^7.18.0"
   },
   "devDependencies": {
     "@eslint/js": "^10.0.1",
diff --git a/mon-projet/src/App.jsx b/mon-projet/src/App.jsx
index bfaae78..c47fdfa 100644
--- a/mon-projet/src/App.jsx
+++ b/mon-projet/src/App.jsx
@@ -39,11 +39,14 @@ function App() {
   const [niveaux, setNiveaux] = useState("");
   const [tri, setTri] = useState("nom");
 
-  const affichees = [...trilogies].sort((a, b) => {
-    if (tri === "nom") return a.nom.localeCompare(b.nom);
-    if (tri === "likes") return (likes[b.id] || 0) - (likes[a.id] || 0);
-    return 0;
-  });
+  const affichees = [...trilogies]
+    .filter((t) => t.nom.toLowerCase().includes(recherche.toLowerCase()))
+    .sort((a, b) => {
+      if (tri === "nom") return a.nom.localeCompare(b.nom);
+      if (tri === "likes") return (likes[b.id] || 0) - (likes[a.id] || 0);
+      return 0;
+    });
+
   function ajouter(e) {
     e.preventDefault(); // empêche le rechargement de page
     if (nom.trim() === "") return; // on n'ajoute pas du vide
@@ -59,10 +62,6 @@ function App() {
 
   const total = Object.values(likes).reduce((s, n) => s + n, 0);
 
-  const filtrees = trilogies.filter((t) =>
-    t.nom.toLowerCase().includes(recherche.toLowerCase()),
-  );
-
   return (
     <div className="body">
       <Header />
@@ -92,14 +91,14 @@ function App() {
         onChange={(e) => setRecherche(e.target.value)}
       />
       <p>👍 Total de likes : {total}</p>
-      {filtrees.length === 0 && <p>Aucune trilogie trouvée</p>}
-      {filtrees.map((trilo) => (
+      {affichees.length === 0 && <p>Aucune trilogie trouvée</p>}
+      {affichees.map((trilo) => (
         <Carte
           key={trilo.id}
           titre={trilo.nom}
           niveaux={trilo.niveaux}
-          likes={likes[trilo.id] || 0} // SON nombre de likes
-          onLike={() => liker(trilo.id)} // incrémente SON like
+          likes={likes[trilo.id] || 0}
+          onLike={() => liker(trilo.id)}
         />
       ))}
       <Footer />
diff --git a/mon-projet/src/main.jsx b/mon-projet/src/main.jsx
index b9a1a6d..4bfc3b2 100644
--- a/mon-projet/src/main.jsx
+++ b/mon-projet/src/main.jsx
@@ -1,10 +1,17 @@
-import { StrictMode } from 'react'
-import { createRoot } from 'react-dom/client'
-import './index.css'
-import App from './App.jsx'
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import "./index.css";
+import App from "./App.jsx";
+import { BrowserRouter } from "react-router-dom";
 
-createRoot(document.getElementById('root')).render(
+createRoot(document.getElementById("root")).render(
+  <BrowserRouter>
+    <App />
+  </BrowserRouter>,
+);
+
+createRoot(document.getElementById("root")).render(
   <StrictMode>
     <App />
   </StrictMode>,
-)
+);