Stop tap flash and accidental selection on controls

[kemiljk]

Summary

• Reset now kills iOS tap highlight and long-press callout on labels, buttons, summaries, and widget roles — tapping a checkbox label no longer flashes grey.
• React and Web Components pair -webkit-user-select: none on every clickable control (and add it where it was missing: Nav, Breadcrumbs, Label, chips). Double-tapping a button no longer selects its label.
• Same treatment on the docs site chrome (header, sidebar, TOC, copy chip). Links stay selectable so copying their text still works.

Test plan

• On a phone or Safari with touch emulation, tap a checkbox/switch/radio label — no grey tap flash
• Rapidly tap a Button (and a Button-as-link) — label text does not select
• Double-click an Accordion/sidebar disclosure — trigger label does not select
• Drag from a Nav link or breadcrumb — no page-wide text selection
• Select and copy a paragraph and a real link in docs prose — still works
• Switch docs radius to Round and spot-check a form page (checkbox, button, tabs)
• Confirm bun run test:shape still passes

Made with Cursor

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Project	Deployment	Actions	Updated (UTC)
kernel-ui	Ready	Preview	Aug 20, 2026 4:21pm