.w3f-error {
    background: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 14px;
}
.w3f-success {
    background: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 14px;
}
.w3f-info {
    background: #e7f4ff;
    border: 1px solid #b6d8f5;
    color: #055a8c;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}
.center-text {
    text-align: center;
    font-size: 16px;
}