:root { color-scheme: light dark; --fg:#16181d; --muted:#5b6270; --bg:#fdfdfc; --rule:#e4e4e0; --link:#2f5fd0; }
@media (prefers-color-scheme: dark) {
  :root { --fg:#e8e8e6; --muted:#9aa1ad; --bg:#131417; --rule:#2a2c31; --link:#8fb0ff; }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto; padding: 4rem 1.5rem 6rem; max-width: 42rem;
  font: 16px/1.65 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  color: var(--fg); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1 { font-size: 1.5rem; letter-spacing: -0.01em; margin: 0 0 0.25rem; }
h2 { font-size: 1.05rem; margin: 2.5rem 0 0.6rem; letter-spacing: -0.005em; }
p, li { color: var(--fg); }
.sub { color: var(--muted); margin: 0 0 2.5rem; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
ul { padding-left: 1.15rem; }
li { margin: 0.35rem 0; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0 1.5rem; }
footer { color: var(--muted); font-size: 0.875rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
.updated { color: var(--muted); font-size: 0.875rem; margin-top: 0.25rem; }