.sm-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
}

.sm-form .form-group {
    margin-bottom: 15px;
}

.sm-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.sm-form input[type="text"],
.sm-form input[type="email"],
.sm-form input[type="tel"],
.sm-form textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.sm-message {
    padding: 10px;
    margin: 20px 0;
    border-radius: 3px;
}

.sm-message.success {
    background: #dff0d8;
    color: #3c763d;
}

.sm-message.error {
    background: #f2dede;
    color: #a94442;
}