/* Add a small arrow to indicate external links */
.md-nav__link[href^="http"]::after {
  content: "↗";           /* Unicode external link arrow */
  font-size: 0.75em;      /* slightly smaller than text */
  margin-left: 0.1rem;   /* space between text and arrow */
  vertical-align: text-bottom; /* aligns with baseline of text */
  opacity: 0.7;           /* subtle appearance */
}