:root{--bg-color: #0f172a;--neon-blue: #3b82f6;--neon-purple: #8b5cf6;--neon-red: #ef4444}body{margin:0;background-color:#000;font-family:Courier New,Courier,monospace;display:flex;justify-content:center;align-items:center;min-height:100vh;color:#fff;overflow:hidden;touch-action:none}.app-container{position:relative;display:flex;flex-direction:column;align-items:center;width:100%}.cloud-header{display:flex;align-items:center;gap:8px;color:#94a3b8;font-size:12px;margin-bottom:10px}.cloud-toast{position:absolute;top:40px;background:#10b981e6;color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;z-index:100;box-shadow:0 4px 12px #0000004d}.game-board{width:400px;height:600px;background:var(--bg-color);position:relative;overflow:hidden;border-radius:16px;cursor:crosshair;box-shadow:0 0 40px #3b82f633,inset 0 0 20px #000c}.stars-bg{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.5;background-image:radial-gradient(2px 2px at 20px 30px,#eee,transparent),radial-gradient(2px 2px at 40px 70px,#fff,transparent),radial-gradient(2px 2px at 50px 160px,#ddd,transparent),radial-gradient(2px 2px at 90px 40px,#fff,transparent),radial-gradient(2px 2px at 130px 80px,#fff,transparent);background-size:200px 200px;animation:scrollStars 4s linear infinite}@keyframes scrollStars{0%{background-position:0 0}to{background-position:0 200px}}.scanline{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:40;background:linear-gradient(to bottom,transparent 50%,rgba(0,0,0,.25) 51%);background-size:100% 4px}.scanbar{position:absolute;top:0;left:0;right:0;height:10px;pointer-events:none;z-index:41;background:#3b82f61a;box-shadow:0 0 20px #3b82f666;animation:scan 4s linear infinite}@keyframes scan{0%{top:-10px}to{top:100%}}.damage-flash{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:45;box-shadow:inset 0 0 80px #ef4444cc;background:#ef444433;animation:flashOut .15s ease-out}@keyframes flashOut{0%{opacity:1}to{opacity:0}}.entity{position:absolute;transform:translate(-50%,-50%);display:flex;justify-content:center;align-items:center;pointer-events:none}.entity img{width:100%;height:100%;object-fit:contain;image-rendering:pixelated;filter:drop-shadow(0 0 8px rgba(255,255,255,.3))}.player{width:40px;height:40px;z-index:10}.engine-fire{position:absolute;bottom:-12px;width:8px;height:16px;border-radius:50%;background:linear-gradient(to bottom,#fff,#3b82f6,transparent);animation:flicker .1s infinite alternate;filter:blur(1px)}@keyframes flicker{0%{transform:scaleY(1);opacity:.8}to{transform:scaleY(1.5);opacity:1}}.enemy{width:40px;height:40px;z-index:5}.enemy.fast{width:30px}.enemy.tank{width:50px;height:50px}.bullet{width:12px;height:24px;z-index:8}.hp-bar-container{position:absolute;top:-10px;width:100%;height:4px;background:#fff3;border-radius:2px}.hp-bar-fill{height:100%;background:#4ade80;border-radius:2px;transition:width .1s}.particle{position:absolute;width:4px;height:4px;border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;box-shadow:0 0 6px currentColor}.hud{position:absolute;top:10px;left:15px;right:15px;display:flex;justify-content:space-between;align-items:flex-start;z-index:20;pointer-events:none}.hud-left{display:flex;flex-direction:column;gap:4px}.score-box{font-size:20px;font-weight:700;text-shadow:0 0 8px var(--neon-blue);font-style:italic}.level-box{display:flex;align-items:center;gap:4px;font-size:14px;color:#facc15;text-shadow:0 0 5px #facc15}.hud-right{display:flex;gap:4px}.heart-icon{filter:drop-shadow(0 0 5px var(--neon-red))}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:50}.panel{padding:30px;text-align:center}.neon-text{font-size:36px;margin:0 0 20px;color:#fff;text-shadow:0 0 5px #fff,0 0 10px #fff,0 0 20px var(--neon-purple),0 0 40px var(--neon-blue)}.neon-text.text-red{text-shadow:0 0 10px #fff,0 0 20px var(--neon-red),0 0 40px #991b1b}.high-score-display{display:flex;align-items:center;justify-content:center;gap:8px;font-size:18px;margin-bottom:20px;color:#facc15}.blinking-text{animation:blink 1.5s infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.controls-hint{font-size:13px;color:#cbd5e1;line-height:1.8}.stats-box{background:#ffffff1a;padding:20px;border-radius:12px;margin-bottom:30px;font-size:18px;border:1px solid rgba(255,255,255,.2)}.highlight{color:#facc15;font-weight:700;font-size:24px;margin-left:8px;text-shadow:0 0 10px rgba(250,204,21,.5)}.btn-primary{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:linear-gradient(135deg,var(--neon-blue),var(--neon-purple));color:#fff;border:1px solid rgba(255,255,255,.3);padding:14px 30px;font-size:16px;font-weight:700;border-radius:8px;cursor:pointer;text-transform:uppercase;letter-spacing:1px;box-shadow:0 0 15px #8b5cf680;transition:all .2s;font-family:inherit}.btn-primary:hover{box-shadow:0 0 25px #8b5cf6cc;transform:translateY(-2px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}