footer {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    z-index: 100;
}

footer p:first-of-type {grid-column: 1/2;}
footer p:not(:first-of-type) {grid-column: 2/-1;}
footer a {display: inline-block !important;}

@media only screen and (min-width: 768px) {
    footer > * {grid-column: span 4 !important;}
}