Already feared something like this might happen when I tinkered with locally changed CSS values in my browser... And I see where the "issue" is, the change was applied to links within the body of the site, aka, all of them.
A fix would be to change the global link color back to #ffffff and add a custom CSS declaration just for links within a post.
Code:
.content a {
color: #ccccff;
}
Mind you, that #ccccff is just another example value, I am no web designer and have no idea about how to properly match colors...