body{
    background:#f4f6f9;
    font-family:Arial, Helvetica, sans-serif;
}

.logo{
    font-size:80px;
}

.menu-card{
    transition:.3s;
}

.menu-card:hover{
    transform:translateY(-5px);
}

.card{
    border:none;
    border-radius:15px;
}

.card-header{
    font-weight:bold;
}

.xp-bar{
    height:25px;
}

.player-info{
    font-size:18px;
}

.game-title{
    font-weight:bold;
    color:#0d6efd;
}

.mission-card{
    min-height:250px;
}

.rank-1{
    background:#fff3cd;
}

.rank-2{
    background:#e9ecef;
}

.rank-3{
    background:#f8d7da;
}

.certificado{
    background:white;
    border:10px solid #0d6efd;
    padding:50px;
}

.btn{
    border-radius:10px;
}

footer{
    margin-top:50px;
    text-align:center;
    color:#666;
}
``