RAG Chatbot Widget for Next.js Landing Page

We have a landing page built in Next.js, currently live. We need a developer to build a RAG chatbot widget that integrates with Pinecone and Guardrails. The widget should be lightweight, responsive, and easy to use, with a clean design that fits the existing page. The chatbot should provide accurate, relevant answers from the knowledge base and include guardrails to prevent harmful or inappropriate responses. This is a small, short-term project for someone who can deliver a polished, functional widget quickly.