feat: add Elastic Bounce Modal for Cyberpunk Neon Layouts

[pari-28]

Pull Request Description

This PR introduces a pure CSS Elastic Bounce Modal designed for Cyberpunk Neon layouts. The component features a smooth elastic bounce entrance animation, a futuristic neon-inspired interface, responsive design, keyboard accessibility, and customizable CSS variables without requiring JavaScript.

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Type of Change

• 🧩 New component
• ✨ New animation / hover effect
• 📝 Documentation improvement
• 🐛 Bug fix in an existing submission
• Other (describe below)

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Submission Checklist

• All changes are inside submissions/ (e.g., submissions/examples/your-feature-name/)
• Includes demo.html — self-contained, opens in browser with no server
• Includes style.css — raw CSS for the proposed feature
• Includes README.md — what it does, how to use it, why it fits EaseMotion CSS
• No changes to core/
• No changes to components/
• One feature per PR (no bundled unrelated changes)

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Feature Description

What does this add?

A responsive Cyberpunk Neon modal featuring a smooth Elastic Bounce entrance animation built entirely with HTML and CSS.

How does a developer use it?

<input type="checkbox" id="modal-toggle">

<label for="modal-toggle" class="open-btn">
  Initialize System
</label>

<div class="overlay">
  <div class="modal">
    <!-- Modal Content -->
  </div>
</div>

Why does it fit EaseMotion CSS?

This component follows the EaseMotion CSS philosophy by providing a lightweight, reusable, animation-first UI component built entirely with HTML and CSS. It combines a futuristic cyberpunk aesthetic, responsive layout, keyboard accessibility, and CSS custom properties while requiring no JavaScript.

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Demo

• Demo added (demo.html works by opening directly in a browser)

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Browser Testing

• Chrome
• Firefox
• Edge
• Safari (optional but appreciated)

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Notes for Maintainer

• Built entirely with HTML and CSS.
• Uses CSS custom properties for animation timing, scaling, colors, glow effects, and border radius.
• Responsive across desktop and mobile screen sizes.
• Tested locally by opening demo.html directly in the browser.

Closes #34003

[SAPTARSHI-coder]

✅ Submission Validation Passed!

Great job! All required files are present and valid.

📁 Folder: submissions/examples/Elastic-Bounce-Cyberpunk-Neon-Modal

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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