.sf-app-update {
    position: fixed;
    z-index: 10000;
    inset: auto 1rem calc(5.5rem + env(safe-area-inset-bottom)) auto;
    max-width: min(28rem, calc(100vw - 2rem));
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
    padding: 1rem;
    border: 1px solid #c8d8c5;
    border-radius: 1rem;
    background: #fff;
    color: #173d2a;
    box-shadow: 0 .5rem 2rem #173d2a22;
    font: 500 .95rem/1.5 system-ui, sans-serif;
}
.sf-app-update button {
    min-height: 44px;
    padding: .5rem 1rem;
    border: 0;
    border-radius: .65rem;
    background: #245a3e;
    color: #fff;
    font: inherit;
    cursor: pointer;
}
.sf-app-update button:focus-visible { outline: 3px solid #789b50; outline-offset: 3px; }