:root{--bg:#e8f3ff;--text:#1a1a1a;--link:#1e4d8c;--muted:#333333}body{font-family:Tahoma,Verdana,Segoe UI,Arial,sans-serif;margin:0 auto;padding:2rem;background:var(--bg);color:var(--text);line-height:1.6;max-width:52rem}a{color:var(--link)}a:hover{text-decoration:underline}.nav{margin-bottom:2rem}.nav a{margin-right:1rem}h1{font-size:1.75rem;margin-top:0;text-wrap:balance}ul{padding-left:1.25rem}.btn{display:inline-block;margin-top:1rem;padding:.5rem 1rem;background:var(--link);color:#fff;text-decoration:none;border-radius:4px}.btn:hover{opacity:.95;text-decoration:none}.byline{font-size:.9rem;color:var(--muted);margin-top:-.5rem}