mikesheehan54/Claude-Code-Design-AI ? reverse-engineered prompt

Build me a polished design system and UI kit for a Claude style AI app, with a clean, human friendly look and feel. I want a React 18 app with Tailwind styling that feels great for chat based AI workflows, including streaming message states, typing animations, code blocks, markdown and LaTeX rendering, and a nice way to show interactive previews or artifacts. Please make it responsive, mobile friendly, and visually calm, with strong typography and a thoughtful color palette that can shift based on confidence or status. Include a dark mode toggle, reusable components, and some tasteful motion so it feels modern without being distracting. It should be ready for Claude or Anthropic style responses, and the content rendering should be safe and clean. If you need to, look up current docs online for anything unclear, but keep the result focused on a great demo experience that feels like a premium AI interface.