#snackbar {
    visibility: hidden;
    min-width: 280px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 14px 20px;
    position: fixed;
    z-index: 9999;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    font-size: 14px;
    transition: all 0.3s ease;
    opacity: 0;
}

#snackbar.show {
    visibility: visible;
    opacity: 1;
    bottom: 50px;
}

#snackbar.success {
    background-color: #28a745;
}

#snackbar.error {
    background-color: #dc3545;
}