.mfa-container {
    width: 400px;
    margin: 40px auto;
    padding: 25px;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
    text-align: center;
}

.mfa-container img {
    margin: 15px auto;
    width: 200px;
    height: 200px;
    border: 1px solid #eee;
}

input#otpCode {
    width: 150px;
    padding: 8px;
    font-size: 16px;
    margin-top: 10px;
}

.btn, .btn-primary {
    margin-top: 12px;
    padding: 8px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn { background: #eee; }
.btn-primary { background: #007bff; color: white; }
.btn:hover { opacity: 0.9; }