.block-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 99999;
    padding: 20px;
    font-family: sans-serif;
    font-size: 1.2em;
    display: none;
}

.block-overlay button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 5px;
    background-color: #ff5555;
    color: white;
    cursor: pointer;
}