:root{color-scheme:dark;--bg: #070914;--panel: #101629;--cyan: #28f0ff;--pink: #ff3df2;--lime: #b6ff4d;--text: #f4f7ff;--muted: #9aa6c8}*{box-sizing:border-box}html,body{width:100%;height:100%}body{margin:0;background:radial-gradient(circle at 20% 18%,rgba(40,240,255,.18),transparent 32%),radial-gradient(circle at 82% 82%,rgba(255,61,242,.16),transparent 34%),linear-gradient(135deg,#03050d 0%,var(--bg) 48%,#0d1022 100%);color:var(--text);font-family:Arial,Helvetica,sans-serif;overflow:hidden}.game-shell,.game-panel{width:100%;height:100%;margin:0;padding:0}#game-root{width:100vw;height:100vh;display:grid;place-items:center}#game-root canvas{display:block}