I wrote flat CSS for many years and yeah it's a lot of work but also I find it becomes more difficult to parse visually. Like when writing HTML or regular code

I wrote flat CSS for many years and yeah it's a lot of work but also I find it becomes more difficult to parse visually. Like when writing HTML or regular code, I find indentation helps me parse and navigate the structure very easily. There are cases with complex components where it can become a bit complex, but it's trivial to split the tree in multiple parts to reduce the indentation.