header vaadin-context-menu{align-items:center;display:flex}header nav a:hover{text-decoration:none}header nav a[highlight]{color:var(--lumo-primary-text-color)}header nav a:before,header nav a:after{background-color:var(--lumo-contrast-60pct);border-radius:var(--lumo-border-radius) var(--lumo-border-radius) 0 0;content:"";transform-origin:50% 100%;height:2px;width:var(--lumo-size-s);will-change:transform;display:block;position:absolute;bottom:0;left:50%;transform:translate(-50%)scale(0)}header nav a:before{transition:transform .14s cubic-bezier(.12,.32,.54,1)}header nav a:after{box-shadow:0 0 0 4px var(--lumo-primary-color);opacity:.15;transition:transform .15s 20ms,opacity .8s .17s}header nav a[highlight]:before,nav a[highlight]:after{background-color:var(--lumo-primary-color)}header nav a[highlight]:before,header nav a[highlight]:after{transition-timing-function:cubic-bezier(.12,.32,.54,1.5);transform:translate(-50%)scale(1)}header nav a[highlight]:not([active]):after{opacity:0}