:root { scroll-behavior: smooth; }
body { font-family: "Source Sans 3", sans-serif; }
.serif { font-family: "Fraunces", serif; }
.nav-link { position: relative; }
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: #c46b4a;
  transition: width .25s ease;
}
.nav-link:hover::after { width: 100%; }