body{margin:0;font-family:Segoe UI,sans-serif;background:#0d1117;color:#fff}header{padding:60px;text-align:center}.btn{display:inline-block;padding:12px 24px;background:#ea9328;color:#111;text-decoration:none;border-radius:8px;margin:8px;font-weight:bold}.wrap{max-width:1100px;margin:auto;padding:30px}.cards{display:flex;gap:20px;flex-wrap:wrap}.cards img{width:300px;border-radius:16px;border:2px solid #333}footer{text-align:center;padding:30px;color:#aaa}