I have bought a new monitor and tweaked browser settings a bit so I can comfortably read text. I have set default text size to 24 and minimum text size to 16.

Now website layout is broken and has a very small width:

https://lut.im/xXeePEwY9v/iLBDbYUBI9gdjecb.png

I suggest to switch from using pixels to ems in CSS and export graphics to SVG so they scale well.