/* An der Navigation befestigt: folgt auch ihrer mobilen und verkleinerten Höhe. */
#page-header > #scroll-progress-container {
    position: absolute;
    inset-inline: 0;
    bottom: 0;
    height: 4px;
    background: rgba(82, 101, 119, .2);
    pointer-events: none;
    overflow: hidden;
    z-index: 2;
}

#scroll-progress-container[hidden] {
    display: none;
}

#scroll-progress {
    width: 100%;
    height: 100%;
    background: #45a1e8;
    transform: scaleX(0);
    transform-origin: left center;
}

@media print {
    #scroll-progress-container {
        display: none;
    }
}