.lightbox {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.button1{
    background-color: #405969;
    color: white;
    padding: 10px 30px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s, opacity 0.3s;

    position: relative;
    font-size: 16px;
    display: block;
    width: 300px;
    height: 50px;
    margin: 0 auto; 
    font-size: 16px;
    cursor: pointer;
}
.button1:hover
{
    background-color: #2980b9;
    opacity: 0.9;
}
.button1.selected
{
    background-color: #2980b9;
}

.lightbox.hidden {
    opacity: 0;
    visibility: hidden;
}

.lightbox-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    width: 400px;
    max-width: 80%;
}

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