body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;margin:0;padding:0;background-color:#f4f4f4;color:#333}.container{max-width:800px;margin:2rem auto;padding:2rem;background-color:#fff;border-radius:8px;box-shadow:0 0 10px rgba(0,0,0,.1)}h1,h2,h3{color:#2c3e50}h1{border-bottom:2px solid #e0e0e0;padding-bottom:.5rem;margin-top:0}h2{margin-top:2rem}p{margin-bottom:1rem}ol,ul{padding-left:20px}li{margin-bottom:.5rem}.footer{text-align:center;margin-top:2rem;padding-top:1rem;border-top:1px solid #e0e0e0;font-size:.9em;color:#777}