html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

#app {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
/*
 * Text version of the page for crawlers and screen readers (see tools/build-seo.mjs). Visually
 * hidden but kept in the accessibility tree — unlike display:none, which both would skip.
 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}