body.locked {
    overflow: hidden;
}

/* Blur everything inside the body */
body.locked > *:not(#login-overlay) {
    filter: blur(6px);
    pointer-events: none; /* disable clicks */
}

/* Overlay */
#login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(20, 20, 20, 0.9);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 99999;
    text-align: center;
    font-family: sans-serif;
    opacity: 0;
    transition: opacity 0.8s ease;
}

#login-overlay.show {
    opacity: 1;
}

#login-overlay a {
    color: #4CAF50;
    font-size: 18px;
    margin-top: 15px;
    text-decoration: none;
}