:root {
  color-scheme: light dark;
  --ink: #1d1a17; --ink-soft: #5b5650; --surface: #fbf8f3; --line: #ddd6cb; --accent: #b4551e;
  --font-body: ui-serif, Georgia, "Times New Roman", serif;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #ebe6df; --ink-soft: #a8a199; --surface: #17150f; --line: #3a352d; --accent: #e28a52; }
  /* The wordmark is drawn for paper; the public site inverts it the same way. */
  header img, footer img { filter: invert(1); }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--surface); color: var(--ink); font-family: var(--font-body); line-height: 1.55; }
header, main, footer { max-width: 44rem; margin: 0 auto; padding: 0 1.25rem; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; padding-top: 1.5rem; font-family: var(--font-ui); }
header img { height: 2rem; width: auto; }
header nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; font-size: 0.9rem; }
header nav a[aria-current="page"] { font-weight: 600; }
main { padding-top: 1.5rem; padding-bottom: 3rem; }
h1, h2, h3 { font-family: var(--font-ui); line-height: 1.25; }
h1 { font-size: 1.9rem; margin: 0.5rem 0 1rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 0.6rem; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; font-family: var(--font-ui); }
th, td { text-align: left; vertical-align: top; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--line); }
.table-wrap { overflow-x: auto; }
blockquote { margin: 1rem 0; padding: 0.25rem 1rem; border-left: 3px solid var(--line); color: var(--ink-soft); }
footer { border-top: 1px solid var(--line); padding: 1rem 1.25rem 2.5rem; font-family: var(--font-ui); font-size: 0.85rem; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; align-items: center; }
footer img { height: 1.1rem; width: auto; }