.popup-alert {
    position: fixed;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #e74c3c;
    text-align: center;
    color: white;
    padding: 14px 22px;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    font-size: 0.95rem;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, top 0.3s ease;
}

.popup-alert.show {
    opacity: 1;
    pointer-events: auto;
}

.popup-alert.show {
    opacity: 1;
    pointer-events: auto;
}