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Component Lab / forms-checkout / kinetic-file-dropzone

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Kinetic file dropzone

A genuine file input wrapped in a responsive drag-and-drop target. Transfer rails react during drag, the label remains keyboard operable, and selected file names and sizes appear in a polite status region.

Lab tested Responsive Dark mode Interactive
Version
1.0.0
Updated
2026-08-02
Dependencies
Zero
Preparing the interactive workbench…

Implementation field notes

Use kinetic file dropzone 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

  • Asset uploads
  • Document intake
  • Profile attachments

This file inputs pattern works best when its purpose is clear in the surrounding page hierarchy.

Accessibility contract

  • The real file input remains available through a labeled keyboard target.
  • Selected file information is announced politely.
  • Drag animation is decorative and disabled for reduced motion.

Integration plan

  1. Copy the standalone HTML and scoped CSS into an isolated page.
  2. Adapt signal color, signal glow, surface color, text color 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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