It allowed to contain all styles in only one style.css? Same with scripts

Can I write all styles only in style.css of theme, all scripts only in file.js?

Including for blocks (Builder)

try to keep plugin css & js separate other all custom css & Js keep in style.css & main.js file

Hi @Bogette

If you want to use any vendor script then please keep those separate as it is. And for your Template styles and js you can put in a single style.css and main.js. Will be good practice you create a different file for media query (small device responsive css).