button {
    cursor: pointer;
}
.countdown {
    background-color: lightgray;
    color: black;
    border: 3px solid black;
    border-radius: 50px;
    padding: 10px;
    margin: 10px;
}
.countdown p {
    font: bold;
}
#overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
#popup {
    background: var(--bg);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px var(--box-shadow);
}