nav.parts{display:flex;flex-wrap:wrap;gap:.35rem 1.1rem;margin:.6rem 0 .5rem;font-size:13.5px;letter-spacing:.02em}
nav.parts a{color:inherit;text-decoration:none;opacity:.78;border-bottom:1px solid transparent}
nav.parts a:hover{opacity:1;border-bottom-color:currentColor}
nav.parts a[aria-current="page"]{opacity:1;border-bottom-color:currentColor}