.dynamicHeader {
    position: sticky;
    top: var(--app-header-h, 64px);
    z-index: 90;
    background: var(--dyn-header-bg, #c2dcf6);
    transition: box-shadow 0.18s ease;
}

body.scrolledDown .dynamicHeader {
    box-shadow: var(--shadow-down);
}