body{margin:0;font-family:Arial,sans-serif;background:#0f1117;color:#eee}header{padding:80px 24px;text-align:center;background:#111}h1{color:#f7931e;font-size:48px}section{max-width:900px;margin:auto;padding:40px 24px}.btn{display:inline-block;background:#f7931e;color:#111;padding:12px 22px;text-decoration:none;border-radius:6px;font-weight:bold}footer{text-align:center;padding:30px;color:#aaa;border-top:1px solid #333}