:root{color-scheme:light;--bg:#f4f4f4;--card:#fff;--text:#111;--muted:#555;--border:#e5e5e5;--accent:#111}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button{cursor:pointer;touch-action:manipulation}