*{
    margin:0;
    padding:0;
    box-sizing: border-box;
    font-family: sans-serif;
}

.wrapper{
    width:100vw;
    height: 100vh;
    background-color: black;
    display: grid;
    place-items: center;
}

.game-info{
    color:white;
    position:absolute;
    top:3rem;
    left:50%;
    transform:translateX(-50%);
    background-color:rgba(255,255, 255, 0.15);
    border-radius:1rem;
    border:1px solid rgba(255,255, 255, 0.25);
    padding:0.5rem 3rem;
    text-align:center;

}

.tic-tac-toe{
    width:90%;
    max-width:20rem;
    display:grid;
    grid-template-columns: repeat(3,1fr);
    aspect-ratio: 1/1;
    background-color:rgba(255,255, 255, 0.15);
    border-radius:1rem;
    border:1px solid rgba(255,255, 255, 0.25);
    padding:2rem;

}

.box{
    position:relative;
    width:100%;
    aspect-ratio: 1/1;
    cursor:pointer;
    font-size: 3rem;
    color:white;
    display:flex;
    justify-content: center;
    align-items: center;
}

.box1,.box2,.box4,.box5{
    border-right: 2px solid white;
    border-bottom: 2px solid white;
}
.box3,.box6{
    border-bottom:2px solid white;
}
.box7,.box8{
    border-right: 2px solid white;
}


.btn{
    color:white;
    position:absolute;
    bottom:3rem;
    left:50%;
    transform:translateX(-50%);
    background-color:rgba(255,255, 255, 0.15);
    border-radius:1rem;
    border:1px solid rgba(255,255, 255, 0.25);
    padding:0.5rem 2rem;
    cursor: pointer;
    display:none; 
}
.btn.active{
    display:flex;
}

.win{
    background-color: rgba(0, 255,0,0.3);
}