:root{--sky:#d9f1ff;--ink:#16324f;--accent:#ff3b30;--card:#fff}*{box-sizing:border-box}body{color:var(--ink);background:linear-gradient(180deg, var(--sky), #fff 60%);margin:0;font-family:ui-rounded,Arial Rounded MT Bold,system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.6}main{max-width:760px;margin:0 auto;padding:2.5rem 1.25rem 1.5rem}h1{margin:0 0 .5rem;font-size:clamp(2.25rem,7vw,3.25rem);line-height:1.1}h2{margin:2rem 0 .25rem;font-size:1.25rem}a{color:#0b5cad}img{border-radius:20px;width:100%;height:auto;margin:1.5rem 0;display:block}.button{color:#fff;background:var(--accent);border-radius:999px;padding:.75rem 1.5rem;font-weight:700;text-decoration:none;display:inline-block}footer{max-width:760px;margin:0 auto;padding:1rem 1.25rem 2.5rem;font-size:.95rem}