diff --git a/services/web-ui/Dockerfile b/services/web-ui/Dockerfile
index f34a81e..6f1c9d0 100644
--- a/services/web-ui/Dockerfile
+++ b/services/web-ui/Dockerfile
@@ -1,4 +1,21 @@
+# Stage 1: build CSS bundle
+FROM node:20-alpine AS css-build
+WORKDIR /build
+
+# Copy only the files needed to install deps (better cache layering)
+COPY package.json package-lock.json* ./
+RUN npm install --no-audit --no-fund
+
+# Copy source CSS + tailwind config + every HTML file (tailwind scans HTML to determine which utilities to emit)
+COPY tailwind.config.js postcss.config.js ./
+COPY src/ ./src/
+COPY public/ ./public/
+
+# Build into public/dist/app.css
+RUN npx tailwindcss -i ./src/css/app.css -o ./public/dist/app.css --minify
+
+# Stage 2: runtime
 FROM nginx:alpine
-COPY public/ /usr/share/nginx/html/
+COPY --from=css-build /build/public/ /usr/share/nginx/html/
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 EXPOSE 80
diff --git a/services/web-ui/public/fonts/inter-400.woff2 b/services/web-ui/public/fonts/inter-400.woff2
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diff --git a/services/web-ui/public/fonts/inter-600.woff2 b/services/web-ui/public/fonts/inter-600.woff2
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diff --git a/services/web-ui/public/fonts/jetbrains-mono-400.woff2 b/services/web-ui/public/fonts/jetbrains-mono-400.woff2
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diff --git a/services/web-ui/public/fonts/jetbrains-mono-600.woff2 b/services/web-ui/public/fonts/jetbrains-mono-600.woff2
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