*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}
.hero{
    text-align:center;
    padding:50px 20px 30px;
}

.hero h2{
    font-size:32px;
    color:#e2b96f;
    margin-bottom:10px;
}

.hero p{
    color:#aaa;
    margin-bottom:10px;
}

.levels-container{
    width:90%;
    max-width:1000px;
    margin:0 auto 50px;
    display:grid;
    gap:20px;
}

.card{
    background:#16213e;
    padding:20px;
    border-radius:10px;
    text-align:center;
}

.card h3{
    color:#e2b96f;
    margin-bottom:15px;
}

.difficulty{
    color:#e2b96f;
    margin-bottom:15px;
}

.locked{
    opacity:0.6;
}

.btn{
    display:inline-block;
    background:#e2b96f;
    color:#1a1a2e;
    padding:10px 20px;
    border-radius:6px;
    text-decoration:none;
    font-weight:bold;
}

.btn:hover{
    background:#c9a050;
}

.btn-lock{
    background:#555;
    color:#fff;
}