I'll convert this interactive card stack design to pure HTML, CSS, and JavaScript for your GitHub Pages portfolio. This will be a standalone implementation that you can easily deploy.

This HTML/CSS/JavaScript implementation provides:

1. Standalone Portfolio Card Stack: Perfect for GitHub Pages deployment
2. Interactive Drag Functionality: Users can drag cards to reveal new projects
3. Responsive Design: Works on desktop, tablet, and mobile devices
4. Dynamic Color Extraction: Automatically extracts colors from project images
5. Smooth Animations: CSS transitions and transforms for fluid interactions
6. Portfolio-Focused Content: Sample projects relevant to a design portfolio
7. Modern Styling: Clean, professional design with glassmorphism effects

To deploy on GitHub Pages:

1. Create a new repository
2. Upload these three files (index.html, styles.css, script.js)
3. Enable GitHub Pages in repository settings
4. Your portfolio will be live at https://yourusername.github.io/repository-name

Customization:

• Replace the portfolioProjects array in script.js with your actual projects
• Update project images, titles, descriptions, and links
• Modify colors and styling in styles.css to match your brand
• Add your own project images to the repository and update the image URLs