material-components/material-components-web ? reverse-engineered prompt

Build me a reusable set of Material Design UI components for the web, with a clean demo page and clear examples so I can see how everything works. I want it to feel like a real component library that covers common things like text fields, buttons, and other basic controls, with good styling, theming options, and easy setup for someone using plain HTML and JavaScript.

Make it simple to drop into an existing site, but still flexible enough to customize colors, typography, and shape. Include a quick start in the README or docs, and make sure the components are easy to initialize and use in a normal web app. If you need to check the latest Material Design guidance or browser support details, look them up online.