It’s hard to follow a path if you can’t see it. I recommend putting your code guidelines in writing. They should be easy to follow and flexible enough to apply to many situations. Here are some of mine I’ve developed over the past decade:
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Angular 
Tailwind CSS is an easy-to-use CSS framework for quick UI development on anything from small projects to enterprise level applications. It's great for all CSS experience levels and since Angular v12 finally offers support for Tailwind, there's nothing getting in the way of giving this excellent framework a try. Here's a primer on Tailwind's features and how you can set it up with Angular v12.
Idris Shedu