/* The manual's pages (scripts/manual-html.mjs): the viewer's typography and colours
   (app/globals.css), dark by default like the viewer, light when the system asks for it,
   except under .theme-dark (the viewer's help drawer, ?theme=dark), which stays dark.
   Every colour pair is full contrast; nothing is dimmed or revealed on hover. */
:root {
  --bg: #0c0e12;
  --panel: #14171d;
  --panel-2: #1b1f27;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --text-2: #c3cad6;
  --accent: #79a9ff;
  --warn: #e0b341;
  --mark: #2b4d8a;
  color-scheme: dark;
  /* a classic scrollbar as in the viewer (app/globals.css); the light theme keeps the system's */
  --scroll-thumb: #6b7384;
  --scroll-track: #14171d;
  scrollbar-color: var(--scroll-thumb) var(--scroll-track);
}
@media (prefers-color-scheme: light) {
  :root:not(.theme-dark) {
    --bg: #ffffff;
    --panel: #f3f5f8;
    --panel-2: #e8ecf2;
    --border: #c3cad6;
    --text: #12151b;
    --text-2: #2f3642;
    --accent: #1d56c2;
    --warn: #7a5600;
    --mark: #cfe0ff;
    color-scheme: light;
    scrollbar-color: auto;
  }
}

* {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
}
code,
pre {
  font-family: 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.88em;
}
code {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 4px;
}
pre {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  overflow-x: auto;
}
pre code {
  background: none;
  border: 0;
  padding: 0;
}

/* the bar: name, version, posture, search */
.bar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 10px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}
.chip {
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 7px;
}
.posture {
  font-size: 12px;
  color: var(--warn);
  border: 1px solid var(--warn);
  border-radius: 6px;
  padding: 1px 7px;
}
.viewer {
  font-size: 13px;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 7px;
}
.search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.search label {
  font-size: 14px;
}
.search input {
  width: 260px;
  max-width: 100%;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 9px;
}

/* the layout: contents on the left on wide screens, on top on phones */
.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}
.toc {
  position: sticky;
  top: 64px;
  align-self: start;
  max-height: calc(100vh - 88px);
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.4;
}
.toc-title {
  margin: 0 0 8px;
  font-weight: 600;
}
/* the phone-width switch for the contents; on wide screens the list is always open */
.toc-toggle {
  display: none;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 14px;
}
.toc-toggle::after {
  content: ' \25BE';
}
.toc-toggle[aria-expanded='true']::after {
  content: ' \25B4';
}
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc-list li {
  margin: 0;
}
.toc-list a {
  display: block;
  padding: 4px 8px;
  border-radius: 5px;
  color: var(--text);
  text-decoration: none;
}
.toc-list li.sub a {
  padding-left: 22px;
}
.toc-list a[aria-current='page'] {
  background: var(--panel-2);
  border-left: 3px solid var(--accent);
  font-weight: 600;
}
main {
  min-width: 0;
}
.doc {
  max-width: 76ch;
  overflow-wrap: anywhere;
}
.doc h1 {
  font-size: 1.9em;
  line-height: 1.25;
  margin: 0 0 0.6em;
}
.doc h2 {
  font-size: 1.35em;
  margin: 1.8em 0 0.5em;
  padding-bottom: 0.2em;
  border-bottom: 1px solid var(--border);
}
.doc h3 {
  font-size: 1.1em;
  margin: 1.5em 0 0.4em;
}
.doc img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 1em 0;
}
.doc blockquote {
  margin: 1em 0;
  padding: 8px 16px;
  background: var(--panel);
  border-left: 4px solid var(--accent);
  border-radius: 0 6px 6px 0;
}
.doc blockquote p {
  margin: 0.4em 0;
}
.table-wrap {
  overflow-x: auto;
  margin: 1em 0;
}
.doc table {
  border-collapse: collapse;
  /* whole words in cells: the wrapper scrolls a wide table, the page never does */
  overflow-wrap: normal;
  font-size: 0.94em;
}
.doc th,
.doc td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.doc th {
  background: var(--panel-2);
}
.meta {
  font-size: 1.05em;
}

/* previous and next */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  max-width: 76ch;
  margin: 48px 0 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.pager a {
  display: block;
  max-width: 48%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
}
.pager a span {
  display: block;
  font-size: 13px;
  color: var(--text-2);
}
.pager .next {
  margin-left: auto;
  text-align: right;
}

/* search results */
.results {
  max-width: 76ch;
  margin: 0 0 32px;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.results ol {
  margin: 0;
  padding-left: 20px;
}
.results li {
  margin: 0 0 10px;
}
.results .where {
  font-weight: 600;
}
.results p {
  margin: 2px 0 0;
  font-size: 14px;
  color: var(--text-2);
}
.results mark {
  background: var(--mark);
  color: var(--text);
}

@media (max-width: 860px) {
  .bar {
    position: static;
    padding: 10px 16px;
  }
  .search {
    margin-left: 0;
    width: 100%;
  }
  .search input {
    flex: 1;
    width: auto;
  }
  .layout {
    display: block;
    padding: 16px;
  }
  /* the contents collapse behind a button that stays on screen: the nav is sticky, and the
     open list scrolls inside it, so the chapter text starts within the first screen */
  .toc {
    position: sticky;
    top: 0;
    z-index: 4;
    max-height: 75vh;
    overflow-y: auto;
    margin: 0 -16px 20px;
    padding: 8px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
  }
  .toc-title {
    display: none;
  }
  .toc-toggle {
    display: inline-block;
  }
  .toc:not(.open) .toc-list {
    display: none;
  }
  .toc.open .toc-list {
    margin-top: 8px;
  }
  .toc-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }
  .toc-list a,
  .toc-list li.sub a {
    padding: 3px 8px;
    border: 1px solid var(--border);
  }
  .toc-list a[aria-current='page'] {
    border-left-width: 3px;
  }
  .pager a {
    max-width: 50%;
  }
}

/* the footer of every page: the author line (to the About page), the viewer, the legal page */
.foot {
  margin-top: 32px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-2);
}
.foot p {
  margin: 0 0 6px;
}
.foot a + a {
  margin-left: 16px;
}