*{box-sizing:border-box}
body{margin:0;font-family:Arial,sans-serif;background:#f5f6f8;color:#222;line-height:1.65}
header{background:#2b3e50;color:#fff;padding:20px 0;position:sticky;top:0;z-index:10}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
nav{margin-top:8px}
nav a{color:#fff;text-decoration:none;margin-right:18px}
.hero{padding:76px 0;background:#e9eef3}
.hero h2{font-size:40px;margin:0 0 10px}
.section{padding:48px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.card{background:#fff;padding:22px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.07)}
.card h3{margin-top:0}
.btn{display:inline-block;padding:10px 16px;background:#2b3e50;color:white;text-decoration:none;border-radius:6px}
footer{background:#202020;color:#ddd;padding:30px 0;margin-top:35px}
form input,form textarea{width:100%;padding:10px;margin:7px 0;border:1px solid #cfcfcf;border-radius:6px}
form button{padding:10px 16px;border:0;border-radius:6px;background:#2b3e50;color:#fff}