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;bottom:0;content:"";display:block;height:2px;left:50%;position:absolute;transform:translate(-50%) scale(0);transform-origin:50% 100%;width:var(--lumo-size-s);will-change:transform}header nav a:before{transition:.14s transform cubic-bezier(.12,.32,.54,1)}header nav a:after{box-shadow:0 0 0 4px var(--lumo-primary-color);opacity:.15;transition:.15s .02s transform,.8s .17s opacity}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{transform:translate(-50%) scale(1);transition-timing-function:cubic-bezier(.12,.32,.54,1.5)}header nav a[highlight]:not([active]):after{opacity:0}