Some of the new ones do create brand design systems.
Check these out:
https://labs.google.com/u/0/pomelli
Also Claude Code is also fantastic for design
Going from a one-prompt to a great design isn't really realistic. You'll need some iterations in design just like proof of concepts (for iteration) for engineering work to refine down what you're really looking for.
Firecrawl API key missing or invalid. Set FIRECRAWL_API_KEY in .env.local to your key from https://firecrawl.dev — then restart `next dev`.