Depends on what style means...

How I format the code: language, team/style-check rules, IDE auto format settings

How I structure my code and design programs: experience... Mainly from blowing stuff up, having to rewrite monolith code, trying to understand other people's shitty code and why they can't seem to organize it better so you don't need to be a surgeon or God to even attempt to figure out wtf it's doing and how it works... Or supposed to work.