Cannot changing login button color, have tried theme, plugins… is it GoDaddy managed?

I have added this code into my theme Customization and also Simple Custom CSS plugin

.wp-core-ui #login .button-primary {   background: #7e0001 !important;    background-image: none !important;   border-color: #7e0001;  } 

For the life of me I cannot that code override the ‘default blue’ of the WordPress login button. The only plugin that works is "Login Press" which seems to use the exact same CSS as me, but somehow WordPress pays attention to it and not my theme CSS. I don’t need to style the whole thing I just want to colorize the damn button.

Is it me? Is it GoDaddy WordPress Managed hosting?