body{font-family:Arial,sans-serif;margin:0;background:#111;color:#eee}header,footer{background:#0b3d2e;padding:1rem}nav a{color:#fff;margin-right:1rem;text-decoration:none}.container{max-width:1100px;margin:auto;padding:2rem}.card{background:#1b1b1b;padding:1rem;border-radius:10px;margin:1rem 0}.btn{background:#2ecc71;color:#000;padding:.75rem 1rem;border-radius:6px;text-decoration:none;font-weight:bold}table{width:100%;border-collapse:collapse}td,th{border:1px solid #444;padding:.6rem}