/* Form Error Styles */
.form-control.error,
input.error,
textarea.error {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.field-error {
    color: #dc3545;
    font-size: 0.875em;
    margin-top: 0.25rem;
    display: block;
}

/* Loading, Error, and Success Message Styles */
.php-email-form .loading {
    display: none;
    background: #fff;
    text-align: center;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.php-email-form .error-message {
    display: none;
    color: #fff;
    background: #dc3545;
    text-align: center;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.php-email-form .sent-message {
    display: none;
    color: #fff;
    background: #28a745;
    text-align: center;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

/* Submit Button Disabled State */
.php-email-form button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}