:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --ink: #25231e;
  --muted: #656159;
  --line: #dfd9cd;
  --paper: #fffcf7;
  --accent: #8f2d16;
  --code-bg: #24241f;
  --code-ink: #f4efe6;
  --nav: 15rem;
  --measure: 43rem;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.65;
  background: var(--bg);
  color: var(--ink);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
button, summary { cursor: pointer; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 10; top: -5rem; left: 1rem; padding: 0.6rem 1rem; background: var(--paper); }
.skip-link:focus { top: 0.5rem; }
.banner { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 0.75rem 1.5rem; border-bottom: 1px solid var(--line); background: var(--paper); }
.wordmark { font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.25rem; }
.wordmark span { margin-left: 0.8rem; font-weight: 400; }
.wordmark span, .gh, .eyebrow, .nav, .toc, .menu-toggle, .btn, .page-links, .page-footer, .code-toolbar { font-family: ui-sans-serif, system-ui, sans-serif; }
.wordmark span, .gh { color: var(--muted); font-size: 0.78rem; }
.body { display: grid; grid-template-columns: var(--nav) minmax(0, 1fr); min-height: calc(100vh - 3.6rem); max-width: 100rem; margin: auto; }
.sidebar { min-width: 0; border-right: 1px solid var(--line); }
.nav { position: sticky; top: 0; max-height: 100vh; overflow-y: auto; padding: 1.3rem 1rem 2rem; font-size: 0.77rem; line-height: 1.4; }
.nav a { display: block; padding: 0.35rem 0.65rem; color: var(--muted); text-decoration: none; border-left: 2px solid transparent; }
.nav a:hover { color: var(--accent); background: #ede9df; }
.nav a[aria-current="page"] { color: var(--accent); font-weight: 600; background: #eee7dc; border-left-color: var(--accent); }
.nav-overview { margin-bottom: 1.1rem; }
.nav-section { margin-bottom: 1.05rem; }
.nav-section summary { color: var(--ink); font-weight: 650; font-size: 0.74rem; padding: 0.2rem 0.3rem; }
.nav-section summary::marker { color: #999083; font-size: 0.7em; }
.nav ul, .toc ul { list-style: none; margin: 0.35rem 0 0; padding: 0; }
.main { min-width: 0; background: var(--paper); padding: 2.8rem clamp(1.3rem, 4vw, 4rem) 3rem; }
.main:focus { outline: none; }
.page-header { max-width: var(--measure); margin-bottom: 1.8rem; }
.eyebrow { font-size: 0.69rem; font-weight: 650; letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); margin: 0 0 0.8rem; }
.main h1, .main h2, .main h3, .main h4 { line-height: 1.2; scroll-margin-top: 1.5rem; }
.main h1 { margin: 0 0 1rem; font-size: clamp(2rem, 3.4vw, 2.9rem); letter-spacing: -0.025em; }
.main h2 { margin: 2.5rem 0 0.8rem; font-size: 1.55rem; }
.main h3 { margin: 1.8rem 0 0.6rem; font-size: 1.2rem; }
.main h4 { font-size: 1rem; }
.main p { margin: 0 0 1.2rem; }
.main li { margin-bottom: 0.4rem; }
.main ul, .main ol { padding-left: 1.3rem; }
.main img { max-width: 100%; height: auto; }
.lead, .hero .tag { color: var(--muted); font-size: 1.1rem; line-height: 1.55; }
.reading-layout { display: grid; grid-template-columns: minmax(0, var(--measure)); gap: 1.4rem; }
.article { min-width: 0; overflow-wrap: anywhere; }
.article > :first-child { margin-top: 0; }
.heading-anchor { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 0.65em; font-weight: 400; opacity: 0; text-decoration: none; }
:is(h2, h3, h4):hover .heading-anchor, .heading-anchor:focus-visible { opacity: 1; }
.toc { grid-row: 1; color: var(--muted); font-size: 0.73rem; line-height: 1.45; border-block: 1px solid var(--line); padding: 0.75rem 0; }
.toc summary { color: var(--ink); font-weight: 600; }
.toc ul { padding-left: 0; }
.toc li { margin: 0.4rem 0; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--accent); }
.toc .toc-level-3 { padding-left: 0.8rem; }
code, kbd, pre { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
code { background: #eee9df; padding: 0.12em 0.3em; font-size: 0.8em; }
pre { font-size: 0.76rem; background: var(--code-bg); color: var(--code-ink); padding: 1.1rem; overflow-x: auto; line-height: 1.65; margin: 1.2rem 0; tab-size: 2; }
pre code { background: none; padding: 0; color: inherit; font-size: inherit; overflow-wrap: normal; }
.code-toolbar { display: flex; justify-content: space-between; align-items: center; background: #303029; color: #d6d1c5; font-size: 0.64rem; padding: 0.4rem 0.85rem; margin-top: 1.2rem; border-bottom: 1px solid #44443b; }
.code-toolbar button { border: 1px solid #6e6d61; color: #f4efe6; background: transparent; padding: 0.2rem 0.55rem; min-height: 1.8rem; }
pre.with-toolbar { margin-top: 0; }
.hljs-comment, .hljs-quote { color: #aaa995; }
.hljs-keyword, .hljs-selector-tag, .hljs-literal { color: #e9b69e; }
.hljs-string, .hljs-regexp, .hljs-addition { color: #c5d4a0; }
.hljs-number, .hljs-symbol, .hljs-attr { color: #edce97; }
.hljs-title, .hljs-type, .hljs-built_in { color: #a8d0d1; }
.hljs-meta, .hljs-property { color: #d8c3a3; }
blockquote { margin: 1.5rem 0; padding: 0.8rem 1rem; border-left: 3px solid #bd8e65; color: var(--muted); background: #f4efe5; }
blockquote p:last-child { margin-bottom: 0; }
.table-scroll { overflow-x: auto; margin: 1.3rem 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.87em; }
th, td { border-bottom: 1px solid var(--line); padding: 0.7rem 0.65rem; vertical-align: top; text-align: left; }
th { background: #f1ece3; font-weight: 600; }
.hero { margin-bottom: 2.5rem; padding-bottom: 2.2rem; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(2.15rem, 4.3vw, 3.5rem); max-width: 16ch; line-height: 1.06; margin: 0.7rem 0 1.2rem; }
.hero .tag { max-width: 38rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.4rem !important; margin-bottom: 0 !important; }
.btn { font-size: 0.8rem; text-decoration: none; padding: 0.55rem 1rem; border: 1px solid var(--ink); color: var(--ink); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn:hover { background: #e9e2d7; color: var(--ink); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1.4rem; margin: 1.5rem 0 2rem; }
.cards article { border-top: 2px solid var(--line); padding-top: 1rem; }
.cards h3 { margin: 0 0 0.75rem; }
.cards p { color: var(--muted); font-size: 0.95rem; }
.cards a { font-size: 0.9rem; }
.signature { width: 15rem; margin: 0.5rem 0 0; }
.page-links { display: flex; justify-content: space-between; gap: 1.5rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: 0.83rem; }
.page-links a { text-decoration: none; max-width: 48%; }
.page-links span { display: block; color: var(--muted); font-size: 0.66rem; margin-bottom: 0.4rem; }
.page-links .next { margin-left: auto; text-align: right; }
.page-footer { margin-top: 2.5rem; font-size: 0.67rem; }
.page-footer a { color: var(--muted); }
@media (min-width: 1300px) {
  .reading-layout:has(.toc) { grid-template-columns: minmax(0, var(--measure)) minmax(8rem, 12rem); gap: 2.5rem; }
  .toc { grid-column: 2; grid-row: 1; align-self: start; position: sticky; top: 1.5rem; max-height: calc(100vh - 3rem); overflow-y: auto; border: 0; padding: 0; }
  .article { grid-column: 1; grid-row: 1; }
}
@media (max-width: 800px) {
  .body { grid-template-columns: minmax(0, 1fr); }
  .banner { padding: 0.7rem 1rem; }
  .wordmark span { margin-left: 0.4rem; font-size: 0.65rem; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .menu-toggle { display: flex; justify-content: space-between; width: 100%; padding: 0.8rem 1rem; border: 0; background: var(--bg); color: var(--ink); font-size: 0.78rem; }
  .nav { position: static; max-height: none; padding: 0.5rem 1rem 1rem; }
  .nav a { padding-block: 0.55rem; }
  .main { padding: 1.7rem 1.1rem 2.5rem; }
  .hero h1 { max-width: 18ch; }
  .main h2 { font-size: 1.4rem; }
  .toc details:not([open]) { margin: 0; }
  .heading-anchor { opacity: 0.5; }
  .code-toolbar button { min-height: 2rem; }
}