/* Overlay a schermo intero */
#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,1);
    color: #555555;

    display: flex;
    align-items: center;
    text-align: center;

    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease, visibility 1s ease;
    z-index: 9999;
}
/* Overlay visibile */
#overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Lampadine sovrapposte */
#lampadina-off, #lampadina-on {
    position: absolute;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 120px;
    object-fit: contain;
    transition: opacity 0.5s ease;
}

#lampadina-on {
    opacity: 0; /* parte invisibile */
}

/* Testo overlay */
#overlay-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    max-width: 90%;
    margin: 0;
}
#overlay h1 {
    font-size: clamp(2.5rem, 4vw, 4rem);
}

#overlay p {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
}
/* Logo in basso */
#logo {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
}