.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; }