Chieji/Echoctl — reverse-engineered prompt

Build me a polished marketing website for the ECHOMEN ecosystem. It should feel premium and modern, similar to ChatGPT or Claude, with lots of clean spacing, smooth motion, and a blue, purple, and cyan style.

The site should explain that ECHOMEN is an autonomous agent system with two ways to use it, a fast command line tool called echoctl and a powerful web UI. I want a strong hero section, feature cards, a comparison between the CLI and web UI, an installation or quick start section, an interactive looking CLI demo that shows a threat scanner running, an FAQ, and a community section with links to the related GitHub projects.

Please make it responsive for mobile and desktop, add a light and dark theme toggle, and keep accessibility in mind. Use React with Vite, Tailwind, Shadcn style components, and tasteful animations. Look up current docs online if you need to.