diff --git a/backend/docker-entrypoint.sh b/backend/docker-entrypoint.sh
index f3b6197..3882a7a 100755
--- a/backend/docker-entrypoint.sh
+++ b/backend/docker-entrypoint.sh
@@ -27,19 +27,30 @@ if [ -z "$SESSION_SECRET" ] || [ "$SESSION_SECRET" = "change-this-to-a-very-stro
         SESSION_SECRET=$(node -e "console.log(require('crypto').randomBytes(64).toString('hex'))")
         export SESSION_SECRET
         
-        # Session secret'ı .env dosyasına kaydet (persist)
-        if [ ! -f "/app/.env" ]; then
-            echo "SESSION_SECRET=$SESSION_SECRET" > /app/.env
-            echo "✅ Yeni SESSION_SECRET oluşturuldu ve .env dosyasına kaydedildi"
+        # .env dosyası yolu
+        ENV_FILE="/app/.env"
+        
+        # Eğer .env bir dizin ise (bind mount sorunu), bind mount'u atla
+        # Sadece environment variable olarak kullan
+        if [ -d "$ENV_FILE" ]; then
+            echo "⚠️  .env bir dizin olarak tespit edildi (bind mount sorunu)"
+            echo "⚠️  SESSION_SECRET sadece environment variable olarak kullanılacak"
             echo "📝 SESSION_SECRET: ${SESSION_SECRET:0:20}... (ilk 20 karakter)"
-        else
+            echo "💡 İpucu: Host'ta .env dosyası oluşturun veya docker-compose.yml'de SESSION_SECRET environment variable'ı kullanın"
+        elif [ -f "$ENV_FILE" ]; then
             # Mevcut .env dosyasını güncelle
-            if grep -q "^SESSION_SECRET=" /app/.env; then
-                sed -i "s|^SESSION_SECRET=.*|SESSION_SECRET=$SESSION_SECRET|" /app/.env
+            if grep -q "^SESSION_SECRET=" "$ENV_FILE"; then
+                sed -i "s|^SESSION_SECRET=.*|SESSION_SECRET=$SESSION_SECRET|" "$ENV_FILE"
             else
-                echo "SESSION_SECRET=$SESSION_SECRET" >> /app/.env
+                echo "SESSION_SECRET=$SESSION_SECRET" >> "$ENV_FILE"
             fi
             echo "✅ SESSION_SECRET güncellendi ve .env dosyasına kaydedildi"
+            echo "📝 SESSION_SECRET: ${SESSION_SECRET:0:20}... (ilk 20 karakter)"
+        else
+            # .env dosyası yok, oluştur
+            echo "SESSION_SECRET=$SESSION_SECRET" > "$ENV_FILE"
+            echo "✅ Yeni SESSION_SECRET oluşturuldu ve .env dosyasına kaydedildi"
+            echo "📝 SESSION_SECRET: ${SESSION_SECRET:0:20}... (ilk 20 karakter)"
         fi
     fi
 else
diff --git a/backend/src/app.js b/backend/src/app.js
index ad72cbe..9ccb885 100644
--- a/backend/src/app.js
+++ b/backend/src/app.js
@@ -127,9 +127,17 @@ app.use(express.urlencoded({ extended: true }));
 
 // Serve frontend build files (if exists, for production)
 const path = require('path');
-const frontendDistPath = path.join(__dirname, '../../frontend/dist');
 const fs = require('fs');
 
+// Determine frontend dist path
+// In single container: /app/backend/src -> /app/frontend/dist
+// In separate containers: backend/src -> ../../frontend/dist (won't exist, that's OK)
+const frontendDistPath = path.join(__dirname, '../../frontend/dist');
+
+// Log the resolved path for debugging
+logger.info(`Frontend dist path resolved: ${frontendDistPath}`);
+logger.info(`__dirname: ${__dirname}`);
+
 // Serve static files (landing page) - but only for specific paths
 // Don't serve from public if frontend dist exists (to avoid conflicts)
 if (!fs.existsSync(frontendDistPath)) {
@@ -137,20 +145,33 @@ if (!fs.existsSync(frontendDistPath)) {
 }
 
 if (fs.existsSync(frontendDistPath)) {
-  logger.info(`Frontend dist found at: ${frontendDistPath}`);
+  logger.info(`✅ Frontend dist found at: ${frontendDistPath}`);
   
   // List files for debugging
   try {
     const files = fs.readdirSync(frontendDistPath);
     logger.info(`Frontend dist files: ${files.join(', ')}`);
     
+    const indexHtmlPath = path.join(frontendDistPath, 'index.html');
+    if (fs.existsSync(indexHtmlPath)) {
+      logger.info(`✅ index.html found at: ${indexHtmlPath}`);
+    } else {
+      logger.error(`❌ index.html NOT found at: ${indexHtmlPath}`);
+    }
+    
     const assetsPath = path.join(frontendDistPath, 'assets');
     if (fs.existsSync(assetsPath)) {
       const assetFiles = fs.readdirSync(assetsPath);
       logger.info(`Frontend assets: ${assetFiles.length} files`);
+      if (assetFiles.length > 0) {
+        logger.info(`Sample assets: ${assetFiles.slice(0, 3).join(', ')}${assetFiles.length > 3 ? '...' : ''}`);
+      }
+    } else {
+      logger.warn(`⚠️  Assets directory not found at: ${assetsPath}`);
     }
   } catch (err) {
-    logger.warn(`Could not read frontend dist: ${err.message}`);
+    logger.error(`❌ Could not read frontend dist: ${err.message}`);
+    logger.error(`Error stack: ${err.stack}`);
   }
   
   // Serve static files with proper headers for SPA
@@ -223,41 +244,50 @@ app.use('/t', require('./routes/tracking.routes'));
 // SPA fallback: serve index.html for all non-API routes (must be after all routes)
 if (fs.existsSync(frontendDistPath)) {
   const indexHtmlPath = path.join(frontendDistPath, 'index.html');
-  logger.info(`Frontend SPA fallback enabled: ${indexHtmlPath}`);
   
-  app.get('*', (req, res, next) => {
-    // Skip API routes and tracking routes
-    if (req.path.startsWith('/api') || req.path.startsWith('/t/') || req.path.startsWith('/health')) {
-      return res.status(404).json({
-        success: false,
-        error: 'Endpoint not found',
-      });
-    }
+  if (fs.existsSync(indexHtmlPath)) {
+    logger.info(`✅ Frontend SPA fallback enabled: ${indexHtmlPath}`);
     
-    // Log SPA fallback
-    logger.info(`SPA fallback: serving index.html for ${req.path}`);
-    
-    // Serve frontend SPA
-    if (fs.existsSync(indexHtmlPath)) {
+    app.get('*', (req, res, next) => {
+      // Skip API routes and tracking routes
+      if (req.path.startsWith('/api') || req.path.startsWith('/t/') || req.path.startsWith('/health')) {
+        return res.status(404).json({
+          success: false,
+          error: 'Endpoint not found',
+        });
+      }
+      
+      // Log SPA fallback (only for non-asset requests to reduce noise)
+      if (!req.path.startsWith('/assets/') && !req.path.match(/\.(js|css|png|jpg|jpeg|gif|svg|ico|woff|woff2|ttf|eot)$/)) {
+        logger.info(`SPA fallback: serving index.html for ${req.path}`);
+      }
+      
+      // Serve frontend SPA
       res.sendFile(indexHtmlPath, (err) => {
         if (err) {
-          logger.error(`Failed to send index.html: ${err.message}`);
+          logger.error(`❌ Failed to send index.html: ${err.message}`);
+          logger.error(`Error stack: ${err.stack}`);
           res.status(500).json({
             success: false,
             error: 'Failed to load frontend',
           });
         }
       });
-    } else {
-      logger.error(`index.html not found at: ${indexHtmlPath}`);
-      res.status(500).json({
+    });
+  } else {
+    logger.error(`❌ index.html not found at: ${indexHtmlPath}`);
+    logger.error(`Frontend dist exists but index.html is missing!`);
+    // 404 handler (if frontend not properly built)
+    app.use((req, res) => {
+      res.status(404).json({
         success: false,
-        error: 'Frontend not found',
+        error: 'Endpoint not found',
       });
-    }
-  });
+    });
+  }
 } else {
-  logger.warn(`Frontend dist not found at: ${frontendDistPath}`);
+  logger.warn(`⚠️  Frontend dist not found at: ${frontendDistPath}`);
+  logger.warn(`This is normal if using separate frontend/backend containers.`);
   // 404 handler (if frontend not built)
   app.use((req, res) => {
     res.status(404).json({