.app-button-help {
    position: fixed;
    z-index: 10900;
    max-width: min(320px, calc(100vw - 24px));
    padding: 8px 11px;
    border-radius: 6px;
    background: #18283f;
    color: #fff;
    font: 400 13px/1.45 system-ui, sans-serif;
    text-align: left;
    white-space: normal;
    overflow-wrap: anywhere;
    box-shadow: 0 3px 12px #0003;
}
.app-button-help[hidden] { display: none; }
@media print { .app-button-help { display: none !important; } }