I need some assistance with css to continue some customizations

Thanks for using Apex! I can help you out with these customizations.

The following CSS will address all three modifications:

.menu-primary a {
  font-weight: 700;
}
.menu-primary .current-menu-item a,
.menu-primary .current-menu-item a:link,
.menu-primary .current-menu-item a:visited {
  color: #333;
}
.single-post .post-title {
  display: none;
}

Please copy and paste that code into the Additional CSS section in the Live Customizer (Appearance > Customize), and it will take effect right away.

Thank you for your assistance with this. Regarding the menu css (above), we were already using the following:

.menu-primary-items a,
.menu-primary-items a:link,
.menu-primary-items a:visited,
.menu-unset a,
.menu-unset a:link,
.menu-unset a:visited {
color: #660066;
}

It may have conflicted with the one you provided. What I should have asked for was a hover color as the one we are using is what we need. We can live without one, however.

Is it possible to hide the footer completely with css or does the code need to be deleted (which we understand would interfere with the updating?

By the way, I see you are the theme author and wish to complement you on providing the css file with multiple customizations. We are not tech people but understand how to apply css and the file was VERY helpful. We want a minimialist+++ theme with little as possible in the way of the content. In our opinion you are at a 14 on a scale of 1-10. Great job!

Okay that’s no problem. Here is an updated snippet that changes the color of the current menu item link when hovered over:

.menu-primary .current-menu-item a:hover,
.menu-primary .current-menu-item a:active,
.menu-primary .current-menu-item a:focus {
  color: #333;
}

If you have a child theme, you can copy over the footer.php file and delete the <footer> element. Just make sure to keep the wp_footer() function in that file. Otherwise, you can simply hide it with this CSS:

.site-footer {
  display: none;
}

Apex Pro also has a footer widget area and a custom footer text feature if you would like to modify the text that displays there.

And thanks for the kind feedback! I’m glad you’re finding everything easy to customize ??