/* Only transient background notifications are suppressed; never form validation. */
[data-background-toast-hidden] {
    visibility: hidden !important;
    pointer-events: none !important;
}

.app-popup-error {
    position: sticky;
    top: 0;
    z-index: 20;
    flex: 0 0 auto;
    margin: 12px 16px;
    padding: 12px 16px;
    border: 1px solid #fecaca;
    border-left: 4px solid #dc2626;
    border-radius: 8px;
    background: #fef2f2;
    color: #991b1b;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    max-height: 160px;
    overflow-y: auto;
    text-align: left;
}