UPPERCASE
=========

Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: UI writing
Group: Words

Forbidden:
  Uppercase sentences, uppercase buttons, uppercase anything long

Instead:
  Reading works by word shape, and every uppercase word is the same rectangle, so the reader is forced letter by letter.

The one legitimate use is a **short label** distinguishing itself from nearby text — a category or section marker. Then: small size, bold weight, and increased letter spacing (`--tracking-caps`). 14px bold with generous tracking reads as a label; 18px regular with none reads as shouting.