FROM python:3.10-slim

WORKDIR /app

# Install system deps
RUN apt update && apt install -y wget && rm -rf /var/lib/apt/lists/*

# Copy requirements first (Docker cache optimization)
COPY requirements.txt .

# Install Python deps
RUN pip install --no-cache-dir -r requirements.txt

# Copy project files
COPY . .

CMD ["python", "app.py"]