add feature/css-glitch-flicker-modal-ag

[ayushsri-dev]

Pull Request Description

This PR introduces the CSS Glitch-Flicker Modal for Creative Portfolio Layouts showcase example under submissions/examples/css-glitch-flicker-modal-ag/.

It provides an interactive, zero-JavaScript modal dialog featuring hardware-accelerated glitch-flicker entrance animations, dual RGB channel split text effects (cyan/magenta clip-path slices), scanlines overlay, waveform visualizer, and project metadata metrics designed for cyber-aesthetic portfolio layouts.

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Type of Change

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

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Submission Checklist

• All changes are inside submissions/ (submissions/examples/css-glitch-flicker-modal-ag/)
• 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?

Provides a pure HTML and CSS modal dialog with a controlled cyberpunk glitch and flicker entrance animation designed for creative portfolio showcases.

How does a developer use it?

<!-- Trigger Link -->
<a href="#portfolio-modal" class="btn-trigger">View Project Case Study</a>

<!-- Modal Component -->
<div id="portfolio-modal" class="glitch-modal-overlay" role="dialog" aria-modal="true" aria-labelledby="modal-title">
  <a href="#" class="glitch-modal-backdrop" aria-label="Close modal overlay" tabindex="-1"></a>
  <div class="glitch-modal-card">
    <div class="glitch-scanlines" aria-hidden="true"></div>
    <header class="glitch-modal-header">
      <a href="#" class="glitch-modal-close" aria-label="Close modal">&times;</a>
    </header>
    <div class="glitch-modal-body">
      <h2 id="modal-title" class="glitch-title" data-text="CYBER-SYNTH">CYBER-SYNTH</h2>
      <p>Project details and metrics...</p>
    </div>
  </div>
</div>

Why does it fit EaseMotion CSS?

It delivers an ultra-lightweight, zero-dependency interactive modal system with high-impact cyber visuals, smooth keyframe sequencing, full keyboard accessibility, and robust @media (prefers-reduced-motion: reduce) support using standard EaseMotion CSS design tokens.

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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

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Closes #54503

[SAPTARSHI-coder]

✅ Submission Validation Passed!

Great job! All required files are present and valid.

📁 Folder: submissions/examples/css-glitch-flicker-modal-ag

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, @ayushsri-dev! 🚀

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]

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🎮 Join our Discord Server!
We have an official Discord server for EaseMotion CSS! Join us to connect with other developers, seek help, discuss design choices, and share your creations in the showcase channel: Join the EaseMotion CSS Discord 💜