#address-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: none;
}

#address-popup-content {
    max-height: 700px;
    overflow-y: auto;
    background: #fff;
    max-width: 500px;
    margin: 100px auto;
    padding: 20px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#address-popup-content h4 {
    margin-top: 0;
}

#popup-address-form p {
    margin-bottom: 10px;
}

#popup-address-form input,
#popup-address-form select {
    width: 100%;
    padding: 8px;
    margin-top: 3px;
    box-sizing: border-box;
}

.multi-address-card {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 10px;
}

.multi-address-card button {
    margin-top: 5px;
    margin-right: 5px;
}