@keyframes pulse{0%{transform:translate(-50%)scale(1)}50%{transform:translate(-50%)scale(1.05)}to{transform:translate(-50%)scale(1)}}*{box-sizing:border-box;margin:0;padding:0}body{background-color:#000;margin:0;padding:0;font-family:Courier New,Courier,monospace;overflow:hidden}.app-container{width:100vw;height:100vh;position:relative}.game-canvas{width:100%;height:100%;display:block}.ui-overlay{pointer-events:none;z-index:10;color:#f7ca18;text-shadow:2px 2px 4px #000;background:linear-gradient(#000c 0%,#0000 100%);flex-direction:column;justify-content:flex-start;align-items:flex-start;width:100%;padding:20px;display:flex;position:absolute;top:0;left:0}.ui-overlay h1{letter-spacing:2px;color:#f9690e;margin-bottom:5px;font-size:3rem;font-style:italic;font-weight:700}.ui-overlay .subtitle{color:#fff;margin-bottom:15px;font-size:1.2rem}.controls{background:#0009;border-left:4px solid #f9690e;border-radius:4px;padding:10px 20px}.interaction-prompt{color:#fff;pointer-events:none;z-index:20;text-shadow:1px 1px 2px #000;background:#000c;border:2px solid #f7ca18;border-radius:8px;padding:15px 30px;font-size:1.5rem;font-weight:700;animation:1.5s infinite pulse;position:absolute;bottom:20%;left:50%;transform:translate(-50%)}