UI Enhancement: Improve Landing Page Design & User Experience

### Description

The current landing page is functional, but the UI can be improved to provide a more modern and engaging experience for users.

### Proposed Improvements

- Improve hero section layout and spacing
- Add a better typography hierarchy
- Add gradient/background effects
- Improve login button styling
- Add code editor preview/mockup section
- Add feature cards/highlights
- Improve navbar and footer alignment
- Enhance responsiveness for mobile devices
- Add subtle animations/transitions

### Goal

Make the landing page visually appealing while keeping the design clean, lightweight, and developer-focused.

### Additional Notes

I would like to work on this issue and submit a PR for it.