/* Glimpr documentation theme — the landing page's system carried into
   mdBook's chrome via additional-css, so the generator stays upgradable.
   White paper, black ink, one red. Newsreader italic for the wordmark,
   Geist for reading, Geist Mono for labels and bytes. */

:root {
  --g-serif: "Newsreader", Georgia, serif;
  --g-sans: "Geist", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --g-mono: "Geist Mono", "SF Mono", ui-monospace, Menlo, monospace;
  /* mdBook sets html{font-size:62.5%} — 1rem is 10px here, so the reading
     measure is stated in px to stop it silently shrinking. */
  --content-max-width: 820px;
}

/* ── one palette, every mdBook theme class ─────────────────────────── */
html,
html.light,
html.rust,
html.coal,
html.navy,
html.ayu {
  --paper: #fff;
  --ink: #000;
  --ink-2: #3d3d3d;
  --ink-3: #767676;
  --rule: #e0e0e0;
  --rule-2: #f0f0f0;
  --red: #d0271a;

  --bg: #fff;
  --fg: #3d3d3d;
  --sidebar-bg: #fff;
  --sidebar-fg: #3d3d3d;
  --sidebar-non-existant: #b0b0b0;
  --sidebar-active: #d0271a;
  --sidebar-spacer: #e0e0e0;
  --scrollbar: #c8c8c8;
  --icons: #767676;
  --icons-hover: #000;
  --links: #d0271a;
  --inline-code-color: #000;
  --theme-popup-bg: #fff;
  --theme-popup-border: #e0e0e0;
  --theme-hover: #f0f0f0;
  --quote-bg: #fff;
  --quote-border: #d0271a;
  --table-border-color: #e0e0e0;
  --table-header-bg: transparent;
  --table-alternate-bg: transparent;
  --searchbar-border-color: #e0e0e0;
  --searchbar-bg: #fff;
  --searchbar-fg: #000;
  --searchbar-shadow-color: #e0e0e0;
  --searchresults-header-fg: #767676;
  --searchresults-border-color: #e0e0e0;
  --searchresults-li-bg: #fff;
  --search-mark-bg: #f7dcd9;
  color-scheme: light;
}

html {
  font-family: var(--g-sans);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
body { font-family: var(--g-sans); }
::selection { background: var(--red); color: #fff; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

/* ── frame ─────────────────────────────────────────────────────────── */
#mdbook-content { padding: 0 clamp(16px, 4vw, 48px); }

#mdbook-content main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 0 88px;
  font-size: 17.5px;
  line-height: 1.72;
  color: var(--ink-2);
}

/* Prose holds a reading measure; tables and figures may use the frame. */
#mdbook-content main > p,
#mdbook-content main > ul,
#mdbook-content main > ol,
#mdbook-content main > blockquote,
#mdbook-content main > h1,
#mdbook-content main > h2,
#mdbook-content main > h3,
#mdbook-content main > h4 {
  max-width: var(--content-max-width);
}

/* ── menu bar ──────────────────────────────────────────────────────── */
#mdbook-menu-bar {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
#mdbook-menu-bar i, #mdbook-menu-bar .icon-button { color: var(--icons); }
#mdbook-menu-bar .icon-button:hover { color: var(--red); }

.menu-title {
  font-family: var(--g-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 1.2rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  opacity: 1;
}

/* single light palette, matching the landing page — no theme picker */
#mdbook-theme-toggle { display: none !important; }

/* ── sidebar ───────────────────────────────────────────────────────── */
#mdbook-sidebar {
  font-family: var(--g-mono);
  font-size: 12.5px;
  border-right: 1px solid var(--rule);
}
.sidebar .sidebar-scrollbox { padding: 20px 0 48px; }

.chapter li.chapter-item { line-height: 1.5; margin: 0; }

.chapter li a {
  padding: 7px 22px;
  color: var(--sidebar-fg);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-left: 2px solid transparent;
  transition: color 0.1s;
}
.chapter li a:hover { color: var(--ink); }
.chapter li a.active {
  color: var(--red);
  border-left-color: var(--red);
  font-weight: 500;
}

.chapter .part-title {
  font-family: var(--g-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
  margin: 28px 0 6px;
  padding: 0 22px 8px;
  border-bottom: 1px solid var(--rule);
}
.chapter .spacer { background: none; margin: 6px 0; }
#mdbook-sidebar-resize-handle { background: transparent; }

/* ── typography ────────────────────────────────────────────────────── */
#mdbook-content h1, #mdbook-content h2, #mdbook-content h3, #mdbook-content h4 {
  font-family: var(--g-sans);
  font-weight: 500;
  letter-spacing: -0.022em;
  color: var(--ink);
}
#mdbook-content h1 {
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.1;
  margin: 10px 0 24px;
}
#mdbook-content h2 {
  font-size: 26px;
  line-height: 1.25;
  margin: 48px 0 14px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}
#mdbook-content h3 { font-size: 20px; margin: 32px 0 8px; }
#mdbook-content h4 { font-size: 17px; margin: 24px 0 6px; color: var(--ink-2); }

/* heading anchors must not read as links */
#mdbook-content h1 a.header, #mdbook-content h2 a.header, #mdbook-content h3 a.header,
#mdbook-content h4 a.header, #mdbook-content h5 a.header, #mdbook-content h6 a.header {
  color: inherit;
  border-bottom: 0;
}

#mdbook-content main > p:first-of-type { font-size: 19.5px; line-height: 1.6; color: var(--ink-2); }

#mdbook-content a {
  color: var(--links);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--links) 30%, transparent);
  transition: border-color 0.12s;
}
#mdbook-content a:hover { border-bottom-color: var(--links); }

#mdbook-content strong { color: var(--ink); font-weight: 600; }
#mdbook-content em { font-style: italic; }
#mdbook-content hr { border: 0; border-top: 1px solid var(--rule); margin: 36px 0; }

/* ── code ──────────────────────────────────────────────────────────── */
code, pre, kbd { font-family: var(--g-mono); font-variant-ligatures: none; }

#mdbook-content code {
  font-size: 0.88em;
  background: var(--rule-2);
  border-radius: 0;
  padding: 1px 5px;
  color: var(--ink);
}

#mdbook-content pre {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.65;
  overflow-x: auto;
}
#mdbook-content pre code { background: none; padding: 0; font-size: inherit; color: var(--ink-2); }

/* ── tables ────────────────────────────────────────────────────────── */
#mdbook-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15.5px;
  line-height: 1.6;
  display: block;
  overflow-x: auto;
}
#mdbook-content table thead { background: none; }
#mdbook-content table thead th {
  font-family: var(--g-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--ink-3);
  background: none;
  text-align: left;
  padding: 0 16px 8px 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  white-space: nowrap;
}
#mdbook-content table td {
  padding: 11px 16px 11px 0;
  border: 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  color: var(--ink-2);
}
#mdbook-content table tbody tr:nth-child(2n) { background: none; }
#mdbook-content table td:first-child { color: var(--ink); }
#mdbook-content table td code { white-space: nowrap; }

/* ── blockquote: used for the status callouts ──────────────────────── */
#mdbook-content blockquote {
  background: none;
  border: 0;
  border-left: 2px solid var(--red);
  border-radius: 0;
  margin: 26px 0;
  padding: 4px 0 4px 20px;
  color: var(--ink-2);
  max-width: var(--content-max-width);
}
#mdbook-content blockquote p:last-child { margin-bottom: 0; }
#mdbook-content blockquote strong { color: var(--ink); }

/* ── lists ─────────────────────────────────────────────────────────── */
#mdbook-content main ul, #mdbook-content main ol { padding-left: 1.25em; }
#mdbook-content main li { margin: 7px 0; }
#mdbook-content main li::marker { color: var(--ink-3); }

/* ── search ────────────────────────────────────────────────────────── */
#mdbook-searchbar {
  font-family: var(--g-sans);
  font-size: 16px;
  border-radius: 0;
  border: 1px solid var(--rule);
  padding: 11px 14px;
}
#mdbook-searchbar:focus { outline: none; border-color: var(--red); }
.searchresults-header {
  font-family: var(--g-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
#mdbook-searchresults li { font-family: var(--g-sans); font-size: 15px; padding: 10px 12px; }
mark { background: var(--search-mark-bg); color: var(--ink); padding: 0 2px; }

/* ── prev / next ───────────────────────────────────────────────────── */
.nav-chapters { font-family: var(--g-mono); color: var(--ink-3); transition: color 0.12s; }
.nav-chapters:hover { color: var(--red); background: none; text-decoration: none; }
.mobile-nav-chapters { border-radius: 0; background: var(--rule-2); }

@media print {
  #mdbook-sidebar, #mdbook-menu-bar, .nav-chapters { display: none; }
  #mdbook-content main { max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* Refinements for mdBook 0.5 and narrow screens. */
.menu-title { font-size: 16px; }
#mdbook-menu-bar .icon-button svg { fill: currentColor; }
#mdbook-content main > table { max-width: 1040px; }
#mdbook-content table th, #mdbook-content table td { min-width: 120px; }
#mdbook-content table th:first-child, #mdbook-content table td:first-child { min-width: 155px; }
.chapter li a { overflow-wrap: anywhere; }
.chapter li.chapter-item > .toggle { padding: 7px 10px; }
@media (max-width: 600px) {
  #mdbook-content { padding: 0 20px; }
  #mdbook-content main { padding-top: 16px; font-size: 16px; line-height: 1.65; }
  #mdbook-content h1 { font-size: 32px; line-height: 1.13; }
  #mdbook-content main > p:first-of-type { font-size: 18px; }
  #mdbook-content h2 { font-size: 24px; margin-top: 36px; }
  #mdbook-content table { font-size: 14px; }
}