made some minor changes in the navbar.

[Chinmay-23-cpu]

Overview

This PR refactors the navigation bar to improve layout, responsiveness, and maintainability without changing the overall design of the website.

Changes Made

• Replaced the old navbar layout with a cleaner Flexbox-based structure.
• Removed conflicting legacy navigation styles.
• Fixed alignment issues between the logo, cart, search, and menu button.
• Repositioned the floating hamburger menu to align with the navbar.
• Improved spacing and icon sizing for better visual consistency.
• Added proper top spacing so the hero section is no longer covered by the fixed navbar.
• Fixed invalid CSS media query syntax.
• Simplified navigation CSS by removing unnecessary float-based layouts.

Result

• Cleaner and more modern navigation bar.
• Better responsiveness across different screen sizes.
• Improved code readability and maintainability.
• No changes to the catalog, product cards, footer, or existing functionality.