.pwa-install[hidden] { display: none; }
.pwa-install {
    position: fixed;
    inset-inline: 1rem;
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: 1400;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
    max-width: 640px;
    margin-inline: auto;
    padding: 1rem;
    border: 1px solid var(--mud-palette-lines-default, #ccc);
    border-radius: 12px;
    background: var(--mud-palette-surface, #fff);
    color: var(--mud-palette-text-primary, #222);
    box-shadow: 0 4px 24px #0003;
    font: inherit;
}
.pwa-install button {
    padding: .5rem .75rem;
    border: 1px solid var(--mud-palette-lines-default, #ccc);
    border-radius: 8px;
    background: var(--mud-palette-surface, #fff);
    color: inherit;
    font: inherit;
    cursor: pointer;
}
#pwa-install-button {
    background: var(--mud-palette-primary, #009688);
    color: var(--mud-palette-primary-text, #fff);
}