html, body {
    height: 100%;
    width: 100%;
}

body {
    font-size: 10vw;
    font-family: Arial, sans-serif;
    text-align: center;
}

#grid-overlay {
    display: grid;
    grid-template-columns: 50% 50%;
    grid-template-rows: 50% 50%;
    height: 100%;
    background: white;
}

.grid-box {
    display: flex;
    justify-content: center;
    align-items: center;
    color: black;
    font-size: 6vw;
    transition: all 0.25s;
    z-index: 10;
}

.grid-box:hover {
    cursor: pointer;
    font-size: 6.5vw;
}

#choose-nature { background: #0eb21e; }
#choose-travel { background: #eaef0a; }
#choose-buildings { background: #ff0808; }
#choose-objects { background: #0667ff; }

#container { 
    align-items: center;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;

    
    height: 100%;
    width: 100%;
}

#word {
    color: white;
    font-size: 16vw;
}

#word.dark { 
    color: black;
}

#return {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 1;
    font-size: 7vw;
    transition: all 0.25s;
}
#return:hover {
    cursor: pointer;
    font-size: 7.5vw;
}