.fd-nuc{flex:none;display:inline-block;position:relative}.fd-nuc>svg{width:100%;height:100%;transition:opacity .15s;position:absolute;inset:0}.fd-nuc__solid,:is(button,a):is(:hover,:focus-visible,:active,[aria-expanded=true],[aria-pressed=true],.is-on) .fd-nuc__line{opacity:0}:is(button,a):is(:hover,:focus-visible,:active,[aria-expanded=true],[aria-pressed=true],.is-on) .fd-nuc__solid{opacity:1}