*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.7;color:#2c3e50;background-color:#fafafa;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1{font-size:2.5rem;line-height:1.2;margin-bottom:1.5rem}h1,h2{font-weight:600;color:#1a202c}h2{font-size:2rem;line-height:1.3}h2,h3{margin-bottom:1rem}h3{font-size:1.5rem;font-weight:500;line-height:1.4;color:#2d3748}p{margin-bottom:1rem}a{color:#2563eb;text-decoration:none}a:hover{text-decoration:underline}.container{max-width:900px;margin:0 auto;padding:0 2rem}section{padding:2.5rem 0;border-top:1px solid #e2e8f0}section:first-of-type{border-top:none;padding-top:3rem}section:nth-child(2n){background-color:#ffffff}section:nth-child(odd){background-color:#fafafa}nav{background-color:#ffffff;border-bottom:1px solid #e2e8f0;position:-webkit-sticky;position:sticky;top:0;z-index:100}nav .container{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;padding-bottom:1rem}nav .site-title{font-size:1.25rem;font-weight:600;color:#1a202c}nav .site-title a{color:inherit}nav .site-title a:hover{text-decoration:none}nav ul{list-style:none;display:flex;gap:2rem;align-items:center}nav a{color:#4a5568;font-weight:500;transition:color .2s}nav a:hover{color:#1a202c;text-decoration:none}.content{max-width:800px}.text-muted{color:#718096}.text-center{text-align:center}@media (max-width:768px){html{font-size:14px}.container{padding:0 1.5rem}section{padding:2rem 0}section:first-of-type{padding-top:2.5rem}nav ul{gap:1rem;flex-wrap:wrap}h1{font-size:2rem}h2{font-size:1.75rem}}