#routing-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#routing-popup {
    background: white;
    padding: 20px;
    border-radius: 8px;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
    position: relative;
}

#popup-close {
    position: absolute;
    top: 10px;
    right: 15px;
    cursor: pointer;
    font-size: 22px;
}