child-theme's php pages don't show up on WordPress

my parent-theme: literatum
my child-theme: literatum-child

I created my child-theme and uploaded it to my server: https://www.evernote.com/l/AKtZu8BBEuxLR4T5rPtnF9ANbKLQt578Reo

This is my style.css file: https://www.evernote.com/l/AKs9HbHttuFEia9P1kRUU85kCnKuji00efw

I have a folder “css” with all my css files (the parent theme has the same structure).
I also put my functions.php in this css folder. (if I leave functions.php outside of the css folder, I won’t see the functions.php file in my theme editor in my wordpress admin)

So is it correct that I have my functions.php inside of my css folder or should functions.php be outside of the css folder?

I have another folder “pages” with a few php files (header.php, ect..)

I have 2 problems:
1) My first problem is that I don’t see any of my php pages in my wordpress theme editor?
Screenshot: https://www.evernote.com/l/AKs9HbHttuFEia9P1kRUU85kCnKuji00efw

2) I don’t know if I included all my css files correctly in my functions.php file.
This is what I did: https://www.evernote.com/l/AKvpEfKP_mFBabaZ9DoGDhA4kx8JXwwHfUE

What is wrong?

If you open my website (https://bastie.cc/), you see the parent theme and not the child theme.

Thanks a lot!