:root{color-scheme:light;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#193246;background:#f5f9fb}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:780px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid #d9e7ed}a{color:#087a91}nav{display:flex;flex-wrap:wrap;gap:15px}.brand{font-weight:800;font-size:1.2rem;text-decoration:none;color:#193246}main{padding-top:48px;padding-bottom:72px}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.1;margin:0 0 18px}h2{margin-top:38px;font-size:1.2rem}p,li{line-height:1.7}.muted{color:#617582}.card{background:white;border:1px solid #d9e7ed;border-radius:18px;padding:24px;margin:22px 0;box-shadow:0 8px 25px #1932460b}.links{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}.links a{display:block;padding:18px;background:#e6f5f8;border-radius:12px;text-decoration:none;font-weight:700}footer{border-top:1px solid #d9e7ed;color:#617582;font-size:.9rem}@media(max-width:520px){header{align-items:flex-start;flex-direction:column}}