:root { --bg: #fbfaf6; --ink: #1f2937; --muted: #6b7280; --link: #1d4ed8; --rule: #e5e7eb; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #16181d; --ink: #e5e7eb; --muted: #9ca3af; --link: #93c5fd; --rule: #2b2f36; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 56px; }
h1 { font-size: 28px; line-height: 1.25; margin: 8px 0 4px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
p, li { margin: 0 0 10px; }
ul { padding-left: 20px; margin: 0 0 10px; }
a { color: var(--link); }
.meta, .crumb { color: var(--muted); font-size: 14px; }
.crumb a { color: var(--muted); text-decoration: none; }
.foot { margin-top: 36px; padding-top: 16px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }