:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:#f5f7fa;color:#17243b;line-height:1.65}.wrap{max-width:780px;margin:auto;padding:38px 24px}header{border-bottom:1px solid #dce3eb;background:white}nav{display:flex;gap:22px;flex-wrap:wrap}nav a{color:#1c5ba9;font-weight:600;text-decoration:none}nav a:hover{text-decoration:underline}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.12;margin:0 0 18px}h2{margin:32px 0 8px;font-size:1.2rem}p,li{font-size:1rem}main{background:white;border:1px solid #dce3eb;border-radius:16px;margin-top:38px;padding:34px;box-shadow:0 4px 22px #17243b08}.eyebrow{text-transform:uppercase;letter-spacing:.12em;color:#59728d;font-size:.8rem;font-weight:700}a{color:#1b5fb2}footer{font-size:.85rem;color:#596b80;text-align:center;padding:30px 20px}code{background:#edf2f7;padding:.1rem .3rem;border-radius:5px}@media(max-width:580px){main{padding:22px}}