diff --git a/src/backend/server.js b/src/backend/server.js
index 349bcdc..7ac730e 100644
--- a/src/backend/server.js
+++ b/src/backend/server.js
@@ -15,7 +15,7 @@ const path = require('path');
 
 const app = express();
 const httpServer = http.createServer(app);
-const PORT = 3000;
+const PORT = process.env.PORT || 3000;
 
 // Trust proxy for Codespaces/containers
 app.set('trust proxy', 1);
@@ -23,7 +23,7 @@ app.set('trust proxy', 1);
 // Security middleware
 app.use(helmet());
 app.use(cors({
-  origin: process.env.FRONTEND_URL || 'http://localhost:5173',
+  origin: process.env.FRONTEND_URL || 'https://atx-connect.up.railway.app',
   credentials: true
 }));
 
@@ -80,8 +80,8 @@ app.use((err, req, res, next) => {
   });
 });
 
-// Start server
-httpServer.listen(PORT, () => {
+// Start server - bind to 0.0.0.0 for Railway/containers
+httpServer.listen(PORT, '0.0.0.0', () => {
   console.log(`
 ╔═══════════════════════════════════════════════════════╗
 ║   AeThex Connect - Communication Platform            ║