:root{color-scheme:light;font-family:Arial,sans-serif;color:#173f3e;background:#f2f8f7}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1050px;margin:auto;padding:32px 24px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid #d9e7e4}nav{display:flex;gap:20px;flex-wrap:wrap}a{color:#176d65;text-underline-offset:5px}.hero{padding:54px 0 32px;max-width:760px}h1{font-size:clamp(32px,5vw,54px);line-height:1.4;margin:12px 0}p{font-size:19px;line-height:1.9;color:#496864}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0}article{background:white;border:1px solid #d9e7e4;border-radius:20px;padding:25px}article h2{font-size:24px}article p{font-size:17px}.button{display:inline-block;padding:12px 18px;background:#176d65;color:white;border-radius:10px;text-decoration:none}.label{font-size:15px;color:#647974}footer{font-size:14px;border-top:1px solid #d9e7e4}@media(max-width:700px){header{display:block}nav{margin-top:20px}.cards{grid-template-columns:1fr}.hero{padding-top:25px}}