JavaScript for something CSS does
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Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: Things to avoid
Group: Code-level

Forbidden:
  Scroll listeners for sticky positioning; scripted accordions and dialogs that have native equivalents

Instead:
  Platform first: `position: sticky`, `<details>`, `<dialog>`, `:has()`, container queries, `scroll-behavior`, `popover`. Reach for a framework when the platform genuinely lacks the capability.