FROM python:3.11-slim

WORKDIR /app

# Install basic dependencies
RUN pip install fastapi uvicorn

# Copy the simple main file
COPY main-simple.py /app/main.py

# Expose port (Railway uses PORT env var)
EXPOSE $PORT

# Run the application with dynamic port
CMD uvicorn main:app --host 0.0.0.0 --port ${PORT:-8000}