.link-underline{padding-bottom:1px;display:inline-block;position:relative}.link-underline:after{content:"";background-color:var(--primary);border-radius:999px;width:0;height:2px;transition:width .3s ease-in-out,background-color .2s;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.link-underline:hover:after{width:100%}