body { background:#000; }
#iguana-game{
    max-width:640px;
    margin:20px auto;
    text-align:center;
    font-family:'Orbitron',Arial,sans-serif;
    color:#0ff;
}
.hud{display:flex;justify-content:space-between;margin-bottom:10px;}
#game-area{
    position:relative;
    height:420px;
    background:radial-gradient(circle at center,#020024,#090979,#00d4ff);
    border:3px solid #0ff;
    box-shadow:0 0 25px #0ff;
    overflow:hidden;
}
.iguana{
    width:70px;height:70px;
    background:
      radial-gradient(circle at 30% 30%,#fff,#0ff 40%,#004);
    border-radius:50%;
    box-shadow:0 0 20px #0ff;
    position:absolute;
    cursor:crosshair;
}
#start-game{
    margin-top:12px;
    padding:12px 26px;
    font-size:18px;
    background:#0ff;
    color:#000;
    border:none;
    cursor:pointer;
    box-shadow:0 0 15px #0ff;
}
#start-game:hover{background:#fff;}