.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 400px;
    max-width: 100%;
    padding: 20px;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
    border-radius: 10px;
    z-index: 9999;
    animation: slideIn 0.5s ease-out, slideOut 0.5s ease-out 2.5s forwards;
}

@keyframes slideIn {
    from {
        right: -450px;
    }
    to {
        right: 20px;
    }
}

@keyframes slideOut {
    from {
        right: 20px;
    }
    to {
        right: -450px;
    }
}