*{margin:0;padding:0;box-sizing:border-box}body{background:linear-gradient(45deg,#0a0a0a,#1a1a1a);display:flex;justify-content:center;align-items:center;min-height:100vh;font-family:Courier New,monospace;overflow:hidden;color:#fff}#gameContainer{position:relative;border:4px solid #333;background:#111;border-radius:8px;box-shadow:0 0 30px rgba(0,255,0,.3)}#gameCanvas{background:#2a2a2a;display:block;border-radius:4px}#gameUI{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:10}#gameInfo{position:absolute;top:15px;left:15px;background:rgba(0,0,0,.7);padding:10px;border-radius:5px;border:1px solid #444}#miniMap{position:absolute;top:15px;right:15px;width:120px;height:90px;background:rgba(0,0,0,.8);border:1px solid #444;border-radius:3px}#controls{position:absolute;bottom:15px;left:15px;background:rgba(0,0,0,.7);padding:8px;border-radius:5px;font-size:11px;border:1px solid #444}#weaponInfo{position:absolute;bottom:15px;right:15px;background:rgba(0,0,0,.7);padding:8px;border-radius:5px;border:1px solid #444}.overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.9);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:20}.overlay h2{font-size:48px;margin-bottom:20px;text-shadow:0 0 20px currentColor}.overlay p{font-size:18px;margin:5px 0}.game-over h2{color:#f44}.victory h2{color:#4f4}.paused h2{color:#ff4}.health-bar{position:absolute;width:30px;height:4px;background:#333;border:1px solid #666}.health-fill{height:100%;background:linear-gradient(90deg,red,#ff0,#0f0);transition:width .3s}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-2px,2px)}75%{transform:translate(2px,-2px)}}.shake{animation:shake .3s ease-in-out}