Hi,
It doesn't work from your custom.css file, because of typo, I can see:
h1 {
font-family: "Cachet-Bold", Verdana, Sans-Serif; !important;
}
but it should be:
h1 {
font-family: "Cachet-Bold", Verdana, Sans-Serif !important;
}
!important is ignored, because it's after semicolon.
Hope it helps..
Cheers
Joshua