:root{color-scheme:light;--ink:#172a36;--muted:#5b6d78;--line:#dfe7eb;--bg:#f7fafb;--accent:#086e80}
*{box-sizing:border-box}html{font-family:system-ui,-apple-system,"Segoe UI",Arial,sans-serif;line-height:1.65}
body{margin:0;background:var(--bg);color:var(--ink)}a{color:var(--accent)}
header,main,footer{max-width:840px;margin:auto;padding-left:24px;padding-right:24px}
header{padding-top:22px;padding-bottom:20px;display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--line)}
.brand{font-weight:750;letter-spacing:.02em;color:var(--ink);text-decoration:none}
nav{display:flex;gap:18px;flex-wrap:wrap}nav a{font-size:14px;text-decoration:none}
nav a:hover{text-decoration:underline}main{min-height:60vh;padding-top:56px;padding-bottom:80px}
h1{font-size:clamp(28px,5vw,40px);line-height:1.2;letter-spacing:-.025em;margin:0 0 22px}
h2{font-size:19px;margin:34px 0 8px}p{margin:10px 0 16px}ul{padding-left:22px}
.lead{font-size:19px;max-width:620px}.muted{color:var(--muted);font-size:14px}
footer{border-top:1px solid var(--line);padding-top:24px;padding-bottom:34px;color:var(--muted);font-size:13px}
footer a{color:inherit} .links{display:flex;gap:16px;flex-wrap:wrap;margin-top:32px}
@media(max-width:600px){header{align-items:flex-start;flex-direction:column}main{padding-top:40px}}