body{margin:0;font-family:Arial,sans-serif;background:#050505;color:#fff}
header{position:sticky;top:0;background:#0a0a0a;border-bottom:1px solid #222;padding:16px 5%;z-index:100}
nav a{color:#c8ff2c;text-decoration:none;margin-right:20px;font-weight:bold}
.hero,.section{max-width:1200px;margin:auto;padding:60px 5%}
h1{font-size:clamp(42px,7vw,80px)}
h2{color:#c8ff2c}
.cardgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#111;border:1px solid #2a2a2a;border-radius:14px;padding:22px}
.back{background:#111;padding:10px 5%}
.back a{color:#c8ff2c;text-decoration:none;font-weight:bold}