juliograterol/artifical-virtual-assistant ? reverse-engineered prompt

Build me a polished Next.js web app for an artificial virtual assistant. I want it to feel modern and friendly, with a clean landing page and a simple assistant style interface where someone can type a message and see a reply appear in the chat. Make it look good on mobile and desktop, use a nice font, smooth spacing, and a professional but approachable design.

Keep the experience simple and believable, like a demo of a smart assistant people could use for questions, reminders, or general help. Add a header, a main chat area, and a few example quick prompts so it feels useful right away. If you need to look up current docs online, go ahead. Please make the app run cleanly with the existing project setup and organize the code nicely so it is easy to edit later.