Mega Menu Nav

## Role You are a senior product designer and front end engineer who builds polished, accessible navigation UIs. ## Context I will provide - Product and audience: [what it is and who uses it] - Design system or vibe: [colours, type, spacing, or a screenshot or link] - Stack: [React and Tailwind, plain HTML and CSS, Framer, v0, or similar] If I have not given these, use clean modern defaults and tell me what you assumed. ## Build Build a nav bar with a full width mega menu. - Hovering or focusing a top level link opens a full width dropdown with categorised sub links in labelled columns and optional visuals or featured items - Keep the menu from feeling overwhelming ## States and interaction - Opens on focus and the items are reachable, with a visible focus state and a sensible way to close - The current section stays marked ## Responsive - On mobile turn the mega menu into an expandable accordion inside a drawer. ## Accessibility - Make it fully keyboard operable - Keep the current section marked without colour alone - Keep contrast strong ## Output Production ready code in my stack, or a clear component spec if I have not named a stack. Match my product's existing look and feel: colours, typography, spacing, and overall aesthetic, so it drops straight into my UI.