Is the layout too crooked (in terms of code)? And will it be difficult to make an adaptive later?

Question

Layout

htmlpreview.github.io/?https://github.com/Roderen/...
Will it be difficult to make an adaptive later?

Answer 1

Will it be difficult to make an adaptive later?

If that's the question, yes it will. Because you need to immediately think about how the interface should work on any screen. There is no such thing as "make layout now, and then add adaptive". You immediately create an interface that can change depending on any conditions.
And if you first make the interface "how it will turn out", and only after that you start thinking about how to cram it into a non-standard screen size, you will encounter a lot of difficulties.