body {
    font-family: Arial, sans-serif;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: #fff;
    margin: 10% auto;
    padding: 30px 20px;
    border-radius: 8px;
    width: 320px;
    position: relative;
    text-align: center;
}

.close {
    position: absolute;
    right: 15px; top: 10px;
    font-size: 24px;
    cursor: pointer;
}

.otp-inputs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    margin-top: 20px;
}

.otp-inputs input {
    height: 44px;
    font-size: 24px;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    margin-top: 10px;
    padding: 8px 18px;
    font-size: 16px;
    border: none;
    border-radius: 4px;
    background: #1976d2;
    color: #fff;
    cursor: pointer;
}

#message {
    margin-top: 12px;
    color: #d32f2f;
    min-height: 20px;
}

.otpButtonBlock {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}