.php-email-form .loading {
    display: none;
    color: #0066cc;
    text-align: center;
    padding: 15px;
}

.php-email-form .error-message {
    display: none;
    color: #721c24;
    background: #f8d7da;
    text-align: right;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.php-email-form .sent-message {
    display: none;
    color: #155724;
    background: #d4edda;
    text-align: center;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}