.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    width: 300px;
    text-align: center;
}

.popup-content {
    position: relative;
    padding: 20px;
}

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.code-info {
    width: 16px;
    height: 16px;
    cursor: pointer;
    margin-left: 5px;
}