body{margin:0;font-family:Arial,sans-serif;background:#111827;color:#f9fafb}main{margin:0 auto;max-width:960px;padding:64px 24px}section{margin-bottom:56px}h1{font-size:clamp(48px,8vw,88px);line-height:.95;margin:16px 0}input,button{border-radius:999px;border:0;font:inherit;padding:14px 18px}button{background:#fb7185;color:#111827;font-weight:700}