: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}.game-shell{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:2rem;background:#0a0a0a}.game-canvas{border:1px solid rgba(255,255,255,.15);border-radius:.5rem;background:#111;cursor:pointer;max-width:100%;height:auto}.game-controls{color:#ffffff73;font-size:.85rem;text-align:center}.game-key{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem;background:#ffffff14;border:1px solid rgba(255,255,255,.15);padding:.15rem .4rem;border-radius:.25rem}