:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1f2937;background:#fafafa}body{margin:0}main{max-width:760px;margin:0 auto;padding:12vh 24px}h1{font-size:clamp(2.5rem,7vw,5rem);margin:0 0 1rem}p{font-size:1.15rem;line-height:1.65}a{color:inherit}