This project is my first NextJS project and my 3rd react-app, there was a lot of difficult times where I had to search for info but thats our job right?, read, understand and develop.
In the middle of my project I noticed that I wasnt getting the full juice of my react components, and had to build some similar components back again, will try to get better at this.
Anyway, you can read my readme.md file for a better approach to the project.
It looks great pretty close to the original design! I like the gradient in the mobile menu even though is different to the menu in the figma file. If you want to make your menu more alike you can use the property backdrop-filter: blur();
I was checking your code and I think is very clear and easy to understand, perfect for teamwork haha.
I don't know if maybe my browser has a problem... but the tablet design kicks in at 1440 px