Update

frontend/app/page.tsx

@@ -93,16 +93,24 @@ export default function HomePage() {
             {t("home.cta")}
           </Button>
         </form>
+        <p className="mt-2 w-full max-w-[740px] text-left text-[11px] leading-tight text-white/90">{t("home.microcopy")}</p>
       </div>
 
       {/* Signature visuelle de marque visible uniquement sur cette page d'accueil. */}
-      <Image
-        src="/name_logo_t4grey.png"
-        alt="T4 transaction"
-        width={260}
-        height={45}
-        className="pointer-events-none fixed bottom-4 left-4 w-[170px] opacity-35 md:w-[220px]"
-      />
+      <a
+        href="https://t4transaction.com/"
+        target="_blank"
+        rel="noreferrer"
+        className="fixed bottom-4 left-4 z-10"
+      >
+        <Image
+          src="/name_logo_t4grey.png"
+          alt="T4 transaction"
+          width={260}
+          height={45}
+          className="w-[170px] opacity-35 transition-opacity hover:opacity-60 md:w-[220px]"
+        />
+      </a>
     </main>
   );
 }

frontend/components/step-shell.tsx

@@ -84,13 +84,20 @@ export function StepShell({ steps, currentStep, previousHref, nextHref, children
       </div>
 
       {/* Branding persistant en bas a gauche */}
-      <Image
-        src="/name_logo_t4grey.png"
-        alt="T4 transaction"
-        width={260}
-        height={45}
-        className="pointer-events-none fixed bottom-4 left-4 w-[170px] opacity-35 md:w-[220px]"
-      />
+      <a
+        href="https://t4transaction.com/"
+        target="_blank"
+        rel="noreferrer"
+        className="fixed bottom-4 left-4 z-10"
+      >
+        <Image
+          src="/name_logo_t4grey.png"
+          alt="T4 transaction"
+          width={260}
+          height={45}
+          className="w-[170px] opacity-35 transition-opacity hover:opacity-60 md:w-[220px]"
+        />
+      </a>
     </main>
   );
 }

frontend/src/locales/en.json

@@ -17,6 +17,7 @@
     "subtitle": "Estimate based on comparable transactions",
     "placeholder": "https://example.com/",
     "hintEnter": "Press Enter to apply",
+    "microcopy": "No email or sign-up necessary. 100% confidential",
     "cta": "Value now"
   },
   "analysis": {

frontend/src/locales/fr.json

@@ -17,6 +17,7 @@
     "subtitle": "Estimation par transactions comparables",
     "placeholder": "https://exemple.com/",
     "hintEnter": "Appuyez sur Entrée pour valider",
+    "microcopy": "Aucun email ni inscription nécessaire. 100 % Français et confidentiel.",
     "cta": "Valoriser"
   },
   "analysis": {