:root{color-scheme:light dark;font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}body{margin:0;background:#f5f8fc;color:#10233f}main{max-width:760px;margin:0 auto;padding:48px 22px}header{padding:30px 0 22px;border-bottom:1px solid #cbd5e1}h1{font-size:42px;margin:0;color:#0b63ce}h2{margin-top:34px}section{background:#fff;padding:22px;border-radius:14px;margin-top:24px;box-shadow:0 4px 18px #10233f12}nav{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}nav a{padding:10px 14px;background:#0b63ce;color:#fff;border-radius:8px;text-decoration:none}a{color:#0759b7}footer{margin-top:40px;color:#52657d;font-size:14px}@media(prefers-color-scheme:dark){body{background:#101a29;color:#edf4ff}section{background:#18263a}a{color:#8fc1ff}}