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AI Product — Chat Assistant Landing

A dark, premium one-page marketing site for Lumio, a fictional conversational AI assistant. It pairs a violet-to-cyan glow aesthetic with an animated hero chat mockup that types a prompt and streams a reply, plus trust logos, a memory and tools feature grid, a three-step how-it-works flow, a genuinely interactive try-a-prompt playground, testimonials, a monthly and yearly pricing toggle, an accordion FAQ, and a waitlist call to action. Built with semantic HTML, responsive CSS, and dependency-free vanilla JavaScript.

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html css vanilla-js
Targets: JS HTML

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Chat Assistant Landing

A complete, self-contained marketing landing page for Lumio, a fictional conversational AI assistant. The design leans into a sleek, premium SaaS mood — a deep slate canvas lit by violet-to-cyan gradient glows, large display type, and tasteful glassmorphism. A sticky, blur-backed navigation bar leads into a hero that pairs bold copy with an animated chat mockup: a prompt types itself out, then a reply streams in token by token with a blinking cursor, framed by floating “memory recalled” and “tools called” cards.

Below the fold, the page unfolds through distinct sections: social-proof logos, a six-card feature grid covering memory, tool use, and integrations, a three-step how-it-works flow, and a live demo card where visitors can tap a starter chip or type their own prompt and watch Lumio stream a contextual reply right in the browser. Testimonials, a monthly/yearly pricing toggle with three plans, and an accordion FAQ round out the story before a glowing waitlist call to action and a full footer.

Everything runs on semantic HTML, responsive CSS custom properties, and dependency-free vanilla JavaScript — including the mobile nav toggle, scroll-reveal via IntersectionObserver, the typewriter and streaming effects, the pricing switch, the FAQ accordion, a reusable toast() helper, and prefers-reduced-motion fallbacks. It scales cleanly from wide desktop down to a ~360px phone.

Illustrative UI only — fictional brand, not a real product.