Clipboard landing page

Hello FEM community ! Here is my first junior challenge and I have some questions:

• If you're on mac : I've been told my theme switch method doesn't work on mac but I couldn't find out why since I don't have access to any macOS system, so I'll appreciate it if you can inform me about theme functionality.
• Does animation works properly for you ? and do you have any good resource to learn css animations to share with me ?
• I spent some time to learn accessibility and I applied what I've learned to this project but I really need some advice on accessibility, any resources or feedbacks regards to accessibility is very valuable to me.
• What is best tag for alerts and modals in html ? I used div since I didn't know any other tags for them, Is it a good approach?

AND HERE ARE SOME GOOD RESOURCES I FOUND ALONG THIS PROJECT

• Here is a very good and straight forward article about applying dark mode using sass.
• I learned a lot from this video by legendary Kevin Powell, It's very short video but probably you will find it useful if you're struggling with accessibility like me.
• Here is another great content by Kevin Powell which taught me to add animation to elements on scroll.

✅ That's all, I'm looking forward to your feedbacks. If you have any other thoughts about my solution, don't hesitate to share it with me.