diff --git a/.github/workflows/ci-optimized.yml b/.github/workflows/ci-optimized.yml
new file mode 100644
index 0000000..c865e4b
--- /dev/null
+++ b/.github/workflows/ci-optimized.yml
@@ -0,0 +1,93 @@
+name: CI - Optimized
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+
+  backend:
+    name: Backend (.NET)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.nuget/packages
+          key: ${{ runner.os }}-nuget-${{ hashFiles('lab5/sample-ci/backend/**/*.csproj') }}
+
+      - name: Restore
+        run: |
+          cd lab5/sample-ci/backend/ProductApi
+          dotnet restore
+          cd ../ProductApi.Tests
+          dotnet restore
+
+      - name: Build
+        run: |
+          cd lab5/sample-ci/backend/ProductApi
+          dotnet build --no-restore --configuration Release
+          cd ../ProductApi.Tests
+          dotnet build --no-restore --configuration Release
+
+      - name: Test
+        run: |
+          cd lab5/sample-ci/backend/ProductApi.Tests
+          dotnet test --no-build --configuration Release --logger trx
+
+      - name: Publish
+        run: |
+          cd lab5/sample-ci/backend/ProductApi
+          dotnet publish --no-build --configuration Release --output ./publish
+
+      - name: Upload backend artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: backend
+          path: lab5/sample-ci/backend/ProductApi/publish
+
+  frontend:
+    name: Frontend (Node.js)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: lab5/sample-ci/frontend/package-lock.json
+
+      - name: Install dependencies
+        run: |
+          cd lab5/sample-ci/frontend
+          npm ci
+
+      - name: Run tests
+        run: |
+          cd lab5/sample-ci/frontend
+          npm test
+
+      - name: Build
+        run: |
+          cd lab5/sample-ci/frontend
+          npm run build
+
+      - name: Upload frontend artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: frontend
+          path: lab5/sample-ci/frontend/dist
diff --git a/lab5/sample-ci/README.md b/lab5/sample-ci/README.md
index 024de05..1cf1496 100644
Binary files a/lab5/sample-ci/README.md and b/lab5/sample-ci/README.md differ
diff --git a/lab5/sample-ci/frontend/index.html b/lab5/sample-ci/frontend/index.html
index ece0929..4cc6904 100644
--- a/lab5/sample-ci/frontend/index.html
+++ b/lab5/sample-ci/frontend/index.html
@@ -53,5 +53,9 @@ <h1>Product Manager</h1>
     </div>
 
     <script src="app.js"></script>
+<footer style="text-align: center; margin-top: 20px; padding: 10px; background: #f5f5f5;">
+    <p>© 2025 WSEI | CI/CD Demo</p>
+</footer>
+
 </body>
 </html>