ladunjexa/nextjs14-saas-landing-page — reverse-engineered prompt

Build me a polished single page SaaS landing site for a fictional AI product called Brainwave. I want it to feel premium and modern, with a big hero section, smooth parallax style motion, bento style content blocks, strong call to action buttons, and a clean navbar and footer. Add sections that sell the product well, like benefits, services, collaboration or integrations, pricing, and a simple roadmap. It should look sleek and futuristic, with nice gradients, layered visuals, subtle animation, and a layout that feels impressive without being cluttered.

Please make it fully responsive so it looks great on mobile and desktop, and keep the scrolling experience smooth. Use reusable components and clean structure so it is easy to customize later. You can use placeholder copy and images where needed, but make the page feel realistic and launch ready. If anything is unclear, follow the style of a modern SaaS marketing site and look up current docs online if you need to.