Modern Responsive Website UI/UX Design

I need a polished, fully responsive website that not only looks great on every screen size but also performs flawlessly. Clean UI/UX is my top priority, so I’m looking for a designer–developer who can move comfortably from high-fidelity mock-ups in Figma, Sketch, or Adobe XD to production-ready HTML5, CSS3, and vanilla JavaScript (or a lightweight framework if it genuinely adds value).

Here is what I have in mind:

• Visual direction: crisp, modern, and uncluttered. You’ll either refine my rough wireframes or help create new ones, then flesh them out into a component-based design system.
• Front-end build: pixel-perfect conversion of approved screens, cross-browser compatible, with semantic code that’s easy for any backend team to plug into.
• Performance & accessibility: pass Google Mobile-Friendly Test, keep Core Web Vitals in the green, and meet WCAG 2.1 AA baseline.
• Complexity: certain sections will involve non-trivial client-side logic, so an eye for clean algorithms (C-style thinking or similar) will serve you well.

Deliverables
1. Design source files (Figma/XD/Sketch) and exported assets
2. Production-ready HTML, CSS, JS with clear folder structure
3. Deployment instructions plus a short loom/video walkthrough

Timeline is roughly four weeks with weekly demos so I can give feedback early and often. If this brief aligns with your skill set, let’s discuss how you’d tackle the project and agree on milestones before we kick off.