:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa;overflow:hidden}.game-container{position:relative;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:#0a0a0a}canvas{display:block;image-rendering:pixelated;border:2px solid rgba(255,255,255,.15);border-radius:4px;box-shadow:0 0 40px #0096ff26,0 0 80px #0096ff0d}.ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;pointer-events:none}.ui-overlay.interactive{pointer-events:auto}.start-screen,.gameover-screen{text-align:center;background:#000000d9;padding:2.5rem 3rem;border-radius:1rem;border:1px solid rgba(255,255,255,.12);box-shadow:0 0 60px #0096ff33}.start-screen h1,.gameover-screen h1{margin:0 0 .5rem;font-size:2rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#00d4ff,#7b2fff,#ff2d55);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.start-screen p,.gameover-screen p{margin:0 0 1.5rem;color:#fff9;font-size:.95rem}.score-display{font-size:1.1rem;color:#00d4ff;margin-bottom:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.start-btn{background:linear-gradient(135deg,#00d4ff,#7b2fff);color:#fff;border:none;padding:.75rem 2rem;font-size:1rem;font-weight:600;border-radius:.5rem;cursor:pointer;letter-spacing:.05em;transition:transform .1s,box-shadow .2s;box-shadow:0 4px 20px #0096ff4d}.start-btn:hover{transform:translateY(-2px);box-shadow:0 6px 30px #0096ff80}.start-btn:active{transform:translateY(0)}.controls-hint{margin-top:1.25rem;font-size:.75rem;color:#ffffff59;letter-spacing:.05em}.hud{position:absolute;top:0;left:0;width:100%;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem;color:#ffffffb3;pointer-events:none;z-index:10}.hud-score{color:#00d4ff;font-weight:700;font-size:1.1rem;text-shadow:0 0 10px rgba(0,212,255,.5)}.hud-lives{color:#ff2d55;font-size:1rem;text-shadow:0 0 10px rgba(255,45,85,.5)}.hud-level{color:#7b2fff;font-weight:600;text-shadow:0 0 10px rgba(123,47,255,.5)}