What minimum skills do I need before starting?

You need basic working knowledge, not mastery.

Minimum required skills:

• HTML: ability to create basic page structure using common tags
  
• CSS: ability to apply colors, spacing, layout, and basic responsiveness
  
• JavaScript: understanding of variables, functions, and simple DOM interaction
  
  

You should be able to:

• Create a simple webpage on your own
  
• Edit and save code using a code editor
  
• Understand and modify code taken from the internet
  
  

You do not need:

• Frameworks (React, Vue, etc.)
  
• Advanced JavaScript
  
• Prior internship experience
  

Why this is sufficient ?
The internship is designed for:

• Learning through execution
  
• Improving by doing daily work
  
• Building skills while working on real tasks
  
  

If you can start small and improve daily, you meet the requirement.