UncleBUbl/HertzLab — reverse-engineered prompt

Build me a simple AI powered web app called HertzLab. The feeling should be sleek, creative, and a little futuristic, like a lab for tuning into ideas, moods, or frequencies. I want a user to land on the page, understand the concept quickly, enter a thought, question, theme, or intention, and get a helpful Gemini generated response that feels insightful and on brand.

Please make it work as a local web app with a clean responsive interface, a clear input area, a loading state, error handling if the API key is missing or the request fails, and a polished result view. Use the Gemini API key from an env file so I can run it locally with npm install and npm run dev. Keep the code organized into components and services so it is easy to adjust later. If any Gemini setup details changed, look up the current docs online and wire it up correctly.