body { font-family: system-ui, sans-serif; max-width: 44rem; margin: 2rem auto; padding: 0 1rem; line-height: 1.6; color: #1a1a2e; }
nav ul { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; }
nav a { text-decoration: none; color: #456; padding: .2rem .5rem; border-radius: .3rem; }
nav a.active { background: #1a1a2e; color: #fff; }
h1 { border-bottom: 2px solid #1a1a2e; padding-bottom: .3rem; }
code { background: #f0f0f4; padding: .1rem .3rem; border-radius: .25rem; }
blockquote { border-left: 3px solid #ccc; margin-left: 0; padding-left: 1rem; color: #555; }
footer { margin-top: 3rem; font-size: .8rem; color: #888; }