diff --git a/Dockerfile b/Dockerfile
index 1e3c2e3..28865d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,31 +1,23 @@
-# ---------- Build stage ----------
+# ---------- Build stage (Keep this the same) ----------
 FROM node:20-alpine AS build
-
 WORKDIR /app
-
-# Install dependencies
 COPY package.json package-lock.json ./
 RUN npm ci
-
-# Copy source
 COPY . .
-
-# Build React app
 RUN npm run build
 
-# ---------- Production stage ----------
-FROM nginx:alpine
+# ---------- Diagnostic Production stage ----------
+FROM python:3.11-slim
 
-# Remove default nginx config
-RUN rm /etc/nginx/conf.d/default.conf
+# Set the working directory to where the React files live
+WORKDIR /usr/share/nginx/html
 
-# Copy custom nginx config
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+# Copy build output from the build stage
+COPY --from=build /app/dist .
 
-# Copy build output
-COPY --from=build /app/dist /usr/share/nginx/html
-
-# Expose standard nginx port
+# Expose port 80 (Cloud Run expects this)
 EXPOSE 80
 
-CMD ["nginx", "-g", "daemon off;"]
+# Run Python's built-in simple HTTP server
+# This server is very "dumb" and will ignore/accept large IAP headers
+CMD ["python", "-m", "http.server", "80"]