.mc-card-box {
    max-width: 520px;
    margin: 30px auto;
    padding: 24px;
    border: 1px solid #ddd;
    border-radius: 14px;
    background: #fff;
}

.mc-card-box label {
    display: block;
    font-weight: 700;
    margin-bottom: 6px;
}

.mc-card-box input {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
}

.mc-card-box button,
.mc-button {
    display: inline-block;
    background: #111;
    color: #fff;
    padding: 12px 18px;
    border-radius: 8px;
    text-decoration: none;
    border: 0;
    cursor: pointer;
}

.mc-card-preview {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
}

.mc-message {
    max-width: 520px;
    margin: 30px auto;
    padding: 16px;
    border: 1px solid #ddd;
    border-radius: 10px;
    background: #fafafa;
}