:root{--bg:#f7f8fc;--surface:#fff;--text:#0b1020;--muted:#5b6175;--accent:#0f766e}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,sans-serif;color:var(--text);background:radial-gradient(circle at 85% 0,#d9f0ff 0,transparent 42%),var(--bg)}a{color:inherit}