:root{--neon-blue: #00f2ff;--neon-purple: #bc13fe;--neon-pink: #ff00de;--bg-dark: #050510}.app-container{width:100%;height:100vh;background:var(--bg-dark);color:#fff;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden;position:relative;display:flex;flex-direction:column;align-items:center}.starfield{position:absolute;width:200%;height:200%;background-image:radial-gradient(1px 1px at 20px 30px,#fff,#0000),radial-gradient(1.5px 1.5px at 40px 70px,#fff,#0000),radial-gradient(1px 1px at 90px 40px,#fff,#0000);background-size:200px 200px;animation:starsMove 20s linear infinite;opacity:.3}@keyframes starsMove{0%{transform:translateY(-50%)}to{transform:translateY(0)}}.hud{width:100%;max-width:400px;padding:15px;display:flex;justify-content:space-between;z-index:10;background:linear-gradient(to bottom,rgba(0,0,0,.8),transparent)}.score-box .label{font-size:10px;color:var(--neon-blue);display:block;letter-spacing:2px}.score-box .value{font-size:24px;font-weight:700;font-family:monospace;text-shadow:0 0 10px var(--neon-blue)}.lives-box{display:flex;gap:5px;margin-top:5px}.life-icon{color:#333;transition:all .3s}.life-icon.active{color:var(--neon-pink);filter:drop-shadow(0 0 5px var(--neon-pink))}.hud-right{text-align:right;font-size:10px;display:flex;flex-direction:column;gap:4px}.cloud-sync{color:#4ade80;display:flex;align-items:center;gap:4px;justify-content:flex-end}.high-score{color:#fbbf24;display:flex;align-items:center;gap:4px;justify-content:flex-end}.game-stage{width:400px;height:600px;position:relative;border:1px solid rgba(255,255,255,.1);overflow:hidden;background:#0000004d}.player{position:absolute;width:50px;height:50px;z-index:5}.player img{width:100%;height:100%;object-fit:contain}.fallback-svg{width:100%;height:100%;color:var(--neon-blue);filter:drop-shadow(0 0 8px var(--neon-blue))}.engine-glow{position:absolute;bottom:-5px;left:50%;transform:translate(-50%);width:15px;height:20px;background:var(--neon-blue);filter:blur(8px);border-radius:50%;animation:pulse .1s infinite alternate}@keyframes pulse{0%{opacity:.5}to{opacity:1}}.bullet{position:absolute;width:4px;height:15px;background:var(--neon-blue);box-shadow:0 0 10px var(--neon-blue);border-radius:2px}.enemy{position:absolute;display:flex;flex-direction:column;align-items:center}.enemy img{width:100%;height:100%;object-fit:contain}.hp-bar{width:80%;height:3px;background:#222;margin-top:2px;border-radius:2px;overflow:hidden}.hp-fill{height:100%;background:var(--neon-pink);transition:width .2s}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#050510e6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100;text-align:center;padding:20px}.title{font-size:42px;background:linear-gradient(to bottom,#fff,var(--neon-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:30px;letter-spacing:4px}.start-btn{background:transparent;border:2px solid var(--neon-blue);color:var(--neon-blue);padding:12px 30px;font-size:18px;font-weight:700;cursor:pointer;transition:all .3s;box-shadow:0 0 15px #00f2ff33;margin:20px 0}.start-btn:hover{background:var(--neon-blue);color:#000;box-shadow:0 0 30px var(--neon-blue)}.instructions{color:#888;font-size:14px;margin-bottom:20px}.instructions p{display:flex;align-items:center;justify-content:center;gap:8px;margin:5px 0}.loader{width:40px;height:40px;border:3px solid rgba(0,242,255,.1);border-top-color:var(--neon-blue);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}@keyframes spin{to{transform:rotate(360deg)}}.shake{animation:shakeAnim .2s ease-in-out}@keyframes shakeAnim{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.footer-decor{position:absolute;bottom:10px;font-size:9px;color:#444;display:flex;align-items:center;gap:5px}