feat: add tada checkbox component

[pari-28]

Pull Request Description

Type of Change

• 🧩 New component
• ✨ Animation
• 📝 Documentation

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Submission Checklist

• Added files only inside submissions/examples/tada-checkbox-pari-28/
• Includes demo.html
• Includes style.css
• Includes README.md
• No changes to existing files
• Pure HTML & CSS
• Responsive
• Accessible
• No JavaScript

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Feature Description

This PR introduces a reusable Tada Checkbox component inspired by music player interfaces. It features a smooth "tada" animation, responsive layout, accessibility support, and CSS custom properties for easy customization.

Features

• Animated checkbox
• Pure HTML & CSS
• Keyboard accessible
• Responsive design
• CSS variables
• Supports prefers-reduced-motion
• No external dependencies

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Demo

Open demo.html directly in any browser.

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Notes for Maintainer

• No JavaScript
• No modifications to existing project files
• Lightweight reusable component

Closes #41874

[SAPTARSHI-coder]

✅ Submission Validation Passed!

Great job! All required files are present and valid.

📁 Folder: submissions/examples/tada-checkbox-pari-28

Files found:

• ✅ demo.html
• ✅ style.css
• ✅ README.md

🚀 Next Steps:

• A maintainer will review your PR
• Respond to any feedback if requested
• Once approved, your contribution will be merged!

Thank you for contributing to EaseMotion CSS! 🎉

[github-actions]

🎉 Congratulations on your PR merge, @pari-28! 🚀

Thank you so much for your valuable contribution to EaseMotion CSS! Your code is now merged into the main branch.

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[github-actions]

🎉 Pull Request Integrated!

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