body,html{background-color:#333;justify-content:center;align-items:center;width:100%;height:100%;margin:0;padding:0;display:flex;overflow:hidden}#game-container{width:100%;height:100%}canvas{display:block}#cta-container{z-index:10;transition:opacity .5s ease-in-out;position:absolute;bottom:10%;left:50%;transform:translate(-50%)}#cta-container.hidden{opacity:0;pointer-events:none}#cta-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#4ade80,#16a34a);border:none;border-radius:30px;padding:15px 40px;font-size:24px;font-weight:700;animation:1.5s infinite pulse;box-shadow:0 4px 15px #0000004d}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}