body{margin:0;background:#f5f7fa;color:#203247;font:17px/1.7 system-ui,sans-serif}main{max-width:780px;margin:64px auto;padding:0 24px}h1{font-size:42px;line-height:1.15}h2{margin-top:38px}a{color:#245e9c}nav{display:flex;gap:24px;border-bottom:1px solid #dae1ea;padding-bottom:20px}small{color:#526379}article{background:white;padding:24px;border-radius:12px;margin-top:24px}footer{margin:44px 0;color:#526379}