.site-logo {
    height: 3.5rem;
}
@media screen and (max-width: 640px) {
    .site-logo {
        height: 2.5rem;
    }
}

.site-name {
    font-size: 1.4rem;
    font-weight: 600;
}
@media screen and (max-width: 768px) {
    .site-name {
        font-size: 1.25rem;
    }
}
@media screen and (max-width: 640px) {
    .site-name {
        font-size: 1.05rem;
    }
}