body{background:#0f0f0f;color:#fff;font-family:Arial;padding:20px}nav a{margin-right:15px;color:#ff4d4d;text-decoration:none;font-weight:bold}input,button{padding:8px;margin:5px 0;display:block}button{background:#ff4d4d;color:#fff;border:none;cursor:pointer}table{width:100%;margin-top:20px;border-collapse:collapse}th,td{border-bottom:1px solid #333;padding:8px}