body{font-family:Arial,sans-serif;margin:0;color:#222;background:#f8fafc}
.container{max-width:1180px;margin:auto;padding:0 20px}
header{background:#111827;color:#fff}
nav{display:flex;gap:18px;align-items:center;padding:18px 0}
nav a{color:#fff;text-decoration:none}
.hero{background:#111827;color:#fff;padding:90px 0}
.btn{background:#2563eb;color:#fff;padding:12px 18px;border-radius:6px;text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 4px 16px rgba(0,0,0,.08)}
section{padding:60px 0} footer{background:#111827;color:#fff;padding:40px 0}