My maven dependency is resolved, but not compiled. How do I debug?

So I have an android project and I've successfully resolved the support libraries (v4 and v7). You don't necessarily need to program Android to answer this question - suffice to say that v7-support-library has a class named android.support.v7.app.AppCompatActivity which is not found in the editor nor while compiling. The dependency is an .aar file, which is like .jar but with extra resources which are not classes. I'm using IntelliJ IDEA 14.0.2 and I believe it supports .aar dependencies just as well as Android Studio (correct me if I'm wrong).

So this is the Maven Projects tab:



My pom.xml is here

A suspicious thing is that in my project settings, neither of the support libraries are listed:


..and the list of External Libraries in the Project tab. Not listed here either:


...and the program does not compile:


So what am I doing wrong? What can I do to debug this error? I've looked at the idea.log file without getting any closer. I really want the dependency as a maven dependency (I know I have some dependencies still as old-fashiend .jar file references, but I'm in the process of converting the project), and I also know Android developers successfully are doing this with Maven, although most of them are using Gradle at this moment. Please help.