.app-toast-container {
    position: fixed;
    top: 30%;
    left: 50%;
    z-index: 9999;
    width: min(88vw, 360px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transform: translateX(-50%);
    pointer-events: none;
}

.app-toast {
    max-width: 100%;
    padding: 10px 16px;
    border-radius: 6px;
    color: #fff;
    background: rgba(0, 0, 0, .78);
    box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
    font-size: 14px;
    line-height: 20px;
    text-align: center;
    word-break: break-word;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease;
}

.app-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .app-toast {
        transition: none;
    }
}