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Component Lab / navigation-layout / adaptive-site-navigation-section-switcher

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Adaptive Section Switcher

Moves between sibling destinations while preserving orientation and selection for content-rich public websites; it is designed to connect landing, category, subcategory, and detail pages through descriptive links. Arrow keys and direct activation follow the expected tab or navigation model. The adaptive site navigation variant is specialized for navigation must remain crawlable and useful at zoom and translation extremes. Users can connect landing, category, subcategory, and detail pages through descriptive links while understanding the current state, available choices, and resulting consequence.

Lab tested Responsive Dark mode Interactive
Version
1.0.0
Updated
2026-08-04
Dependencies
Zero
Preparing the interactive workbench…

Implementation field notes

Use adaptive section switcher confidently.

The preview and source are only the starting point. Use these notes to decide where the component fits, preserve its accessibility contract, and verify the adapted result.

Good fit for

  • Climate field guide
  • Coastal resilience playbook
  • Site navigation

This site navigation pattern works best when its purpose is clear in the surrounding page hierarchy.

Accessibility contract

  • The primary purpose and current state remain available as text and do not depend on color, motion, pointer position, or visual geometry.
  • Every interaction has keyboard equivalence, visible focus, predictable Escape behavior where applicable, and appropriately scoped status announcements.
  • Reduced-motion, 200% zoom, long-content, narrow-container, and forced-color behavior are part of the implementation acceptance criteria.

Integration plan

  1. Copy the standalone HTML and scoped CSS into an isolated page.
  2. Adapt primary wayfinding signal, spatial highlight, navigation surface, primary text through the Inspector.
  3. Connect the defensive JavaScript, then test every control with a keyboard.
  4. Review the result at 375, 768, 1024, and 1440 pixels before shipping.

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