.toast {
    position: fixed;
    top: 16px;
    left: 50%;
    z-index: 1000;
    max-width: calc(100vw - 32px);
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    background: #b3261e;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -12px);
    transition: opacity 0.2s, transform 0.2s;
}

.toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}