People have historically ridiculed #CSS as being convoluted, buggy, and difficult to understand. If you're writing CSS from scratch today, it's anything but that. Specificity is trivially worked around, grid, flexbox, and columns make complex layouts easy to write, and features historically filled by preprocessors are being adopted natively.

Nesting, cascade layers, aspect ratio, container queries, color spaces, :has, color-mix and far more are *native*. Give it a try. You'll be surprised.