Important navigation hidden when it fits
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Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: Things to avoid
Group: States and interaction

Forbidden:
  A hamburger menu on a viewport with room for three visible links

Instead:
  Show what fits. People do not use what they cannot see, and every tap behind a menu is a tap some users will not make. Collapse only under genuine space pressure. When the space pressure is real, `P-14` is what to build instead — a prohibition alone leaves you to invent the replacement.