:root{--background:#fff;--foreground:#111;--muted:#666;--border:#e5e5e5;--surface:#f7f7f7;--max-width:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--background);color:var(--foreground);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}p a{text-decoration:underline}button,input,textarea,select{font:inherit}img{max-width:100%;height:auto}main{width:100%}.container{max-width:var(--max-width);margin:0 auto;padding:3rem 1rem}