.alert-box {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    min-width: 250px;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 16px;
    color: #fff;
    text-align: center;
    display: none;
    z-index: 9999;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s ease;
}

.alert-success {
    background-color: #28a745 !important; /* green */
}

.alert-error {
    background-color: #dc3545 !important; /* red */
}