Hi Oleg, Good start. I suggest reading up some of the article that came out a while back from
https://utopia.fyiThey also have tools to define your own scale and space.
I really like their method of fluid typographic scaling, including the spacing that plays well with the rhythm you like.
I recently made a website for my 7-year old daughter, and I really like the easy at which I can scale and control the typography without much effort from me. Prior, my method would have been to have a base and use a modular scale ratio and write media query to respond to the size size and the type-scale.