responsive calculator app with theme switcher

What are you most proud of, and what would you do differently next time?

The nesting feature of sass/scss made designing the theme switching logic much easier and more organized since I only had to change the class on the body. I also liked how I was able to come up with the calculator logic

What specific areas of your project would you like help with?

My current calculator is very limited. It can only work on two numbers at most and it doesen allo more than one number to have a decimal point. I guess I didn't plan properly for this but I would still like advice on how other people solved that problem. I would also appreciate advice on making the numbers appear with the commas automatically