body {
    font-family: sans-serif;
    text-align: center;
    padding: 20px;
}

#juego {
    display: grid;
    grid-template-columns: repeat(4, 70px);
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.tarjeta {
    width: 70px;
    height: 70px;
    background: #d3df;
    color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 6px;
}

.tarjeta:hover {
    background: rgb(248, 0, 248);
}

.revelado {
    background: #eee;
    color: #000;
}