body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; line-height: 1.6; color: #1f2430; background: #f4f1ec; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { line-height: 1.2; }
a { color: #2f6fed; }
.muted { color: #6b7280; }
code { background: #fff; padding: 1px 5px; border-radius: 4px; font-size: .9em; }