*{margin:0;padding:0;box-sizing:border-box}body{background:radial-gradient(circle at center,#0a0a0a,#000);display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;font-family:Courier New,monospace;color:#fff;overflow:hidden}#game-container{position:relative;box-shadow:0 0 60px #2196f34d,0 0 120px #2196f31a;border-radius:4px;overflow:hidden}canvas{display:block;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}#loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;display:flex;justify-content:center;align-items:center;z-index:10000;transition:opacity .5s ease-out}.loading-content{text-align:center;max-width:400px;padding:20px}.loading-title{font-size:48px;color:gold;text-shadow:0 0 10px #FFD700,0 0 20px #FFD700,0 0 30px #FFD700;margin-bottom:40px;letter-spacing:8px;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.05)}}.loading-bar{width:100%;height:8px;background:#1a1a2e;border-radius:4px;overflow:hidden;margin-bottom:20px;box-shadow:inset 0 2px 4px #00000080}.loading-fill{height:100%;background:linear-gradient(90deg,#2196f3,#00e676,gold);border-radius:4px;animation:loading 1.5s ease-in-out infinite;box-shadow:0 0 10px #2196f380}@keyframes loading{0%{width:0%}50%{width:70%}to{width:100%}}.loading-text{color:#888;font-size:14px;letter-spacing:2px;animation:blink 1.5s ease-in-out infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}@media (max-width: 768px){body{align-items:flex-start;padding-top:20px}#game-container{box-shadow:none}.loading-title{font-size:36px}}body.game-active{user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}#game-container:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to bottom,#fff0 50%,#00000005 50%);background-size:100% 4px;pointer-events:none;opacity:.3}#game-container{will-change:transform;transform:translateZ(0);backface-visibility:hidden}.instructions{margin-top:20px;background:#1a1a2e;padding:15px;border-radius:5px;text-align:center}.instructions h3{color:gold;margin-bottom:10px}.instructions p{color:#ccc;margin:5px 0;font-size:.9em}@media (max-width: 640px){.game-header h1{font-size:1.8em}.game-info{flex-direction:column;gap:5px}.game-controls{flex-direction:column}}