FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json* ./
# --legacy-peer-deps allows install to succeed despite peer dep mismatches
# (Tailwind 4 alpha + React 19 peer deps tend to be strict).
RUN npm ci --legacy-peer-deps || npm install --legacy-peer-deps

FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1 \
    PORT=3000

COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static

EXPOSE 3000
CMD ["node", "server.js"]