*,::after,::before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d1117;--surface:#161b22;--border:#30363d;--text:#c9d1d9;--text-bright:#f0f6fc;--muted:#8b949e;--accent:#ff5e3a}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}