:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#17243b;background:#f5f7fb;line-height:1.65}*{box-sizing:border-box}body{margin:0}main{max-width:850px;margin:4rem auto;padding:3rem;background:white;border-top:6px solid #1b4cc4;border-radius:8px;box-shadow:0 12px 45px #17243b0a}.brand{font-size:.875rem;letter-spacing:.14em;color:#365780;font-weight:700}h1{font-size:clamp(2rem,6vw,3.1rem);line-height:1.2;letter-spacing:-.035em}h2{font-size:1.3rem;margin-top:2rem}p{font-size:1rem}.intro{font-size:1.2rem;color:#45566c}a{color:#1647b7;text-underline-offset:3px}a:focus-visible{outline:3px solid #e7a51a;outline-offset:4px}nav{display:flex;gap:1.5rem;flex-wrap:wrap;margin-top:2.5rem;padding-top:1rem;border-top:1px solid #dce3ed}footer{color:#526277;margin-top:2rem}code{overflow-wrap:anywhere}@media(max-width:600px){main{margin:1rem;padding:1.5rem}}