diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..382e7fa
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  backend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install backend dependencies
+        run: |
+          if [ -f backend/requirements.txt ]; then
+            python -m pip install --upgrade pip
+            pip install -r backend/requirements.txt
+          else
+            echo "No backend/requirements.txt found, skipping install"
+          fi
+
+      - name: Sanity check - compile Python files
+        run: python -m compileall backend
+
+      - name: Run tests if present
+        run: |
+          if [ -d backend/tests ]; then
+            python -m pip install pytest
+            pytest -q
+          else
+            echo "No tests found; skipping pytest"
+          fi
diff --git a/enonce-01.pdf b/enonce-01.pdf
new file mode 100755
index 0000000..88c7d44
Binary files /dev/null and b/enonce-01.pdf differ