fix: use tailwindcss cli

Dockerfile

@@ -4,7 +4,12 @@ FROM python:3.13-slim AS builder
 # Create working directory
 WORKDIR /app
 
-# poetry export -f requirements.txt --output requirements.txt --without-hashes
+# Install tools needed for Tailwind CSS build
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
 # Copy dependency files
 COPY requirements.txt ./
 
@@ -12,6 +17,12 @@ COPY requirements.txt ./
 RUN --mount=type=cache,target=/root/.cache/pip \
     pip install --no-deps --disable-pip-version-check -r requirements.txt
 
+# Build Tailwind CSS
+COPY index.html style-input.css tailwind.config.js ./
+RUN curl -sL https://github.com/tailwindlabs/tailwindcss/releases/download/v3.4.17/tailwindcss-linux-x64 -o tailwindcss \
+    && chmod +x tailwindcss \
+    && ./tailwindcss -i ./style-input.css -o ./style.css --minify
+
 # Runtime stage
 FROM python:3.13-slim AS runtime
 
@@ -29,8 +40,9 @@ RUN useradd --home-dir /app --no-create-home --uid 1000 myice
 # Copy installed packages from builder stage
 COPY --from=builder /usr/local/lib/python3.13/site-packages /usr/local/lib/python3.13/site-packages
 
-# Copy application code
+# Copy application code and compiled assets
 COPY index.html favicon.ico ./
+COPY --from=builder /app/style.css ./style.css
 COPY myice ./myice
 
 # Change ownership of copied files