: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:#111;color:#fafafa}.game-container{display:flex;flex-direction:column;align-items:center;padding:1.5rem}h1{margin:0 0 .5rem;font-size:1.75rem;font-weight:600}.hud{display:flex;gap:1.5rem;margin-bottom:.75rem;font-size:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.game-canvas{border:2px solid #333;background:#222;cursor:crosshair;max-width:100%;height:auto}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#000000b3;z-index:10}.game-over-box{background:#1a1a1a;border:1px solid rgba(255,255,255,.15);border-radius:.75rem;padding:2rem 3rem;text-align:center}.game-over-box h2{margin:0 0 .5rem;font-size:2rem;color:#f44336}.game-over-box p{margin:0 0 1.25rem;font-size:1.1rem;color:#ffffffb3}.game-over-box button{padding:.6rem 2rem;font-size:1rem;border:none;border-radius:.5rem;background:#2196f3;color:#fff;cursor:pointer;font-weight:600}.game-over-box button:hover{background:#1976d2}