:root { --bg: #ffffff; --fg: #1b1b1b; --muted: #5f6368; --accent: #465087; --rule: #e6e6e6; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1e1e1e; --fg: #f2f2f2; --muted: #a8a8a8; --accent: #a7b0e8; --rule: #333333; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif; }
main { max-width: 42rem; margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }
header { display: flex; align-items: center; gap: .6rem; margin-bottom: 2rem; }
header img { width: 32px; height: 32px; }
header a { color: var(--fg); text-decoration: none; font-weight: 600; font-size: 1.1rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
p, li { margin: .5rem 0; }
ul { padding-left: 1.25rem; }
a { color: var(--accent); }
.updated { color: var(--muted); margin: 0 0 1.5rem; }
.switch { margin-left: auto; font-size: .95rem; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0; }
footer { color: var(--muted); font-size: .9rem; border-top: 1px solid var(--rule);
  margin-top: 3rem; padding-top: 1rem; }
footer a { color: var(--muted); margin-right: 1rem; }
.lead { font-size: 1.15rem; }
nav.links a { display: inline-block; margin: .25rem 1.25rem .25rem 0; }