body{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;line-height:1.6;color:#333;margin:0;padding:0}.container{max-width:1200px;margin:0 auto;padding:0 20px}header{background:#232f3e;color:white;padding:2rem 0;margin-bottom:2rem}header h1{margin:0 0 0.5rem 0;font-size:2.5rem}header p{margin:0 0 1rem 0;opacity:0.9}nav{margin-top:1rem}nav a{color:white;text-decoration:none;margin-right:1.5rem;padding:0.5rem 1rem;border-radius:4px;transition:background 0.3s}nav a:hover{background:rgba(255,255,255,0.2)}main{min-height:60vh;padding:2rem 0}main h1{color:#232f3e;border-bottom:3px solid #ff9900;padding-bottom:0.5rem}main h2{color:#232f3e;margin-top:2rem}main h3{color:#ff9900}main a{color:#0073bb;text-decoration:none}main a:hover{text-decoration:underline}pre{background:#f4f4f4;border:1px solid #ddd;border-radius:4px;padding:1rem;overflow-x:auto}code{background:#f4f4f4;padding:0.2rem 0.4rem;border-radius:3px;font-family:"Courier New", monospace}pre code{background:none;padding:0}footer{background:#232f3e;color:white;padding:2rem 0;margin-top:3rem;text-align:center}footer p{margin:0}