Allison b27b3c1d44 feat(marketing): bootstrap Tailwind v4 + design tokens FlexiHub ...

Adds Tailwind v4 / PostCSS pipeline that compiles to static/css/marketing.css,
to be loaded only by future templates/marketing/** templates and to coexist
with the existing legacy v3 JIT runtime used by index.html / account.html /
admin.html. The legacy v3 runtime stays untouched.

- package.json: postcss-cli build:css and watch:css scripts
- postcss.config.js: @tailwindcss/postcss + autoprefixer
- static/css/tailwind.config.js: brand tokens (b1/b2/b3, navy, navy2, navy3,
  bg, border), font families, brand-grad, cta shadows, FlexiHub keyframes
  (tc-fade-in-up/right, tc-float-y, tc-pulse-glow, plus-breathe). content
  paths scoped to marketing/legal/billing/macros only - purge cannot touch
  legacy templates.
- static/css/input.css: @import "tailwindcss"; + @config directive (Tailwind
  v4 backward-compat for v3-style JS config). @font-face Inter Variable +
  JetBrains Mono Variable (woff2). base layer body font/color, h1-h3
  letter-spacing. utilities: grad-text, grad-bg, eyebrow.
- Dockerfile: new stage 3 'assets-builder' (node:20-alpine) compiles CSS;
  runtime stage copies the built file in via --from=assets-builder, after
  COPY . . so the freshly-built file always wins.
- .gitignore + .dockerignore: exclude node_modules.

Build verified locally: marketing.css = 121 KB minified (Tailwind v4 ships
all default theme tokens + reset properties even with empty content;
realistic baseline, will not grow much as marketing markup is added).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-27 15:23:25 -04:00

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