Next.js Site Responsiveness Fix

I need my Next.js website made fully responsive without altering the layout or existing structure.

Key Requirements:
- Built with Next.js, JavaScript, and plain CSS
- Add responsiveness using media queries only
- Support mobile (320px – 767px), tablet (768px – 1023px), and desktop (1024px and above)
- Use only standard CSS or .module.css (no Tailwind)
- Follow mobile-first responsive design
- Maintain existing text, image sizes, and positioning
- Project is fully functional; only responsiveness needs to be added
- Deadline: Tonight
- Budget: 1000rs

Ideal Skills and Experience:
- Proficiency in Next.js and CSS
- Experience with media queries and mobile-first design
- Attention to detail to maintain existing layout

Please bid only if you can meet the deadline.