:root{font-family:system-ui,-apple-system,sans-serif;color:#18312b;background:#f5f5ed;line-height:1.65}body{margin:0}header,main,footer{max-width:820px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;border-bottom:1px solid #c5d6cd}a{color:#245f4b}nav{display:flex;gap:18px;flex-wrap:wrap}h1{line-height:1.2;font-size:clamp(30px,6vw,46px)}h2{margin-top:36px}article{background:white;border-radius:22px;padding:clamp(22px,5vw,40px);border:1px solid #d0dfd5}footer{font-size:14px;color:#557264}.note{border-left:4px solid #65bb97;padding:14px 20px;background:#eff9f3}li{margin:9px 0}