Loopstudios Landing Page (mobile first aproach) HTML | CSS

I am finally finishing this project. It was a real challenge for a beginner like me. I probably made a lot of mistakes and the code is probably not too clean. But, hey, I hope this goes somewhere.

There is a problem when viewing the webpage on the iPadPro, I really don't know what the problem is, and also when the size of the browser in response mode decreases, the logo and the menu for mobile devices shrinks down and I can't see them,I really don't know what the problem is.

Please let me know if anyone can review my work here, I would really like to hear advice about my work and what to do better.