.unread-count-zero {
    background: var(--surface-alt);
    color: var(--text-muted);
}
.notification-actions {
    flex-wrap: wrap;
}
.notification-actions[data-umbruch="1"] > form, .notification-actions[data-umbruch="1"] > [data-knopfgruppe="1"] {
    display: flex;
    flex: 1 0 100%;
}
.notification-actions[data-umbruch="1"] [data-knopfgruppe="1"] > form {
    display: flex;
    flex: 1 1 0;
}
.pn-thread-head > .pn-thread-name { flex: 1 1 14rem; min-width: 0; white-space: nowrap; overflow: hidden; }