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

.modal.nirf .modal-content {
    position: relative;
    background-color: #fff;
    margin: 10% auto;
    padding: 30px;
    width: 400px;
    max-width: 90%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
}

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

.modal.nirf .modal-content input {
    width: 100%;
    padding: 12px;
    margin: 15px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
    text-align: center;
    letter-spacing: 2px;
}

#verifyBtn {
    width: 100%;
    padding: 10px;
}