Restructure the single-file demo into a Vite project:
- src/logo.js: framework-agnostic core (shadow-layer geometry,
inline text-shadow, generated CSS snippet, defaults, font list)
- src/main.js: DOM wiring (state read, live render, copy, native reset)
- src/style.css, index.html: markup + styles with the accessibility
fixes (labels, aria, <details>/<summary>, <form> reset, focus rings)
The original single-file version lives on the 'html' branch.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
