body{margin:0;background:#f5f7f8;color:#18313e;font:17px/1.65 system-ui,sans-serif}header,main,footer{max-width:920px;margin:auto;padding:30px}header{border-bottom:2px solid #188774}nav{display:flex;gap:22px;flex-wrap:wrap}a{color:#096d5e}h1{font-size:2.4rem;line-height:1.2}h2{margin-top:2rem}main{background:white}aside{padding:18px;background:#fff5d8;border-left:4px solid #c28a00}table{border-collapse:collapse;width:100%}td,th{border:1px solid #c5d3d2;padding:10px;text-align:left}@media(max-width:640px){header,main,footer{padding:20px}h1{font-size:2rem}}