body {font-family: Arial, sans-serif; background:#222;color:#eee;margin:0;padding:2rem;}
.grid {display:flex;flex-wrap:wrap;gap:1rem;}
.card {
    flex:1 1 200px;
    background:#333;
    padding:1.5rem;
    text-align:center;
    color:#fff;
    text-decoration:none;
    border-radius:8px;
}
.card:hover {background:#444;}