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

body{
    background-color: #334155;
    color: white;
}

.container{
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.container h1{
    margin-bottom: 40px;
    text-decoration: underline;
}

.game-board{
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, 1fr))
}

.cell{
    border: 2px solid white;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    font-size: 60px;
    font-weight: 600;
    height: 120px;
    cursor: pointer;
}

.cell:first-child,.cell:nth-child(2),.cell:nth-child(3){
    border-top: none;
}

.cell:nth-child(3),.cell:nth-child(6),.cell:nth-child(9){
    border-right: none;
}

.cell:nth-child(7),.cell:nth-child(8),.cell:nth-child(9){
    border-bottom: none;
}

.cell:nth-child(1),.cell:nth-child(4),.cell:nth-child(7){
    border-left: none;
}

.game-players{
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.player{
    margin-inline: 18px;
    font-size: 24px;
    font-weight: 600;
}

.restartBtn{
    border: none;
    background: peru;
    color: antiquewhite;
    font-weight: 700;
    font-size: 24;
    margin-block: 18px;
    padding: 10px 30px;
    border-radius: 4px;
    cursor: pointer;
}

@media screen and (max-width:550px) {
    .container h1{
        font-size: 24px;
    }

    .game-board{
        grid-template-columns: repeat(3, minmax(90px, 1fr))
    }
    
    .cell{
        height: 90px;
        font-size: 50px;
    }
}