/* stat wiki. Laid out after Wikipedia: serif headings with a rule
   beneath, sans-serif text, a hatnote under each title, compact tables. */

:root {
  --wiki-text: #202122;
  --wiki-muted: #54595d;
  --wiki-link: #3366cc;
  --wiki-link-hover: #2a4b8d;
  --wiki-border: #a2a9b1;
  --wiki-rule: #c8ccd1;
  --wiki-panel: #f8f9fa;
  --wiki-panel-head: #eaecf0;
  --wiki-bg: #ffffff;
  --wiki-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  --wiki-matrix: #1f4fc1;
}

/* Dark mode, after Wikipedia's night theme. Quarto adds .quarto-dark to the
   body when the toggle in the top bar is switched on. */
body.quarto-dark {
  --wiki-text: #eaecf0;
  --wiki-muted: #a2a9b1;
  --wiki-link: #88a3e8;
  --wiki-link-hover: #b0c2f2;
  --wiki-border: #54595d;
  --wiki-rule: #404244;
  --wiki-panel: #1b1e22;
  --wiki-panel-head: #27292d;
  --wiki-bg: #101418;
  --wiki-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
  --wiki-matrix: #8fb0ff;
  background-color: var(--wiki-bg);
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--wiki-text);
  font-size: 1rem;
  line-height: 1.6;
}

body.quarto-dark .navbar,
body.quarto-dark .sidebar,
body.quarto-dark #quarto-sidebar,
body.quarto-dark .nav-footer {
  background-color: var(--wiki-panel) !important;
}

body.quarto-dark .navbar,
body.quarto-dark .navbar .nav-link,
body.quarto-dark .navbar-title {
  color: var(--wiki-text) !important;
}

body.quarto-dark .navbar .nav-link.active {
  color: var(--wiki-link) !important;
}

/* The dark theme's accent is teal; keep the wiki's blue for links. */
body.quarto-dark .sidebar-link.active,
body.quarto-dark .sidebar-link.active .menu-text,
body.quarto-dark .sidebar-navigation a:hover,
body.quarto-dark #TOC a.active,
body.quarto-dark #TOC a:hover,
body.quarto-dark .breadcrumb a {
  color: var(--wiki-link) !important;
}

body.quarto-dark #TOC a.active {
  border-left-color: var(--wiki-link) !important;
}

body.quarto-dark .sidebar-item-text,
body.quarto-dark .sidebar-link {
  color: #c8ccd1;
}

body.quarto-dark .aa-Form,
body.quarto-dark .aa-Input,
body.quarto-dark #quarto-search input {
  background-color: var(--wiki-bg) !important;
  color: var(--wiki-text) !important;
  border-color: var(--wiki-border) !important;
}

/* The book draws matrices in blue; keep them readable on a dark page. */
.katex [style*="color:blue"],
.katex [style*="color: blue"] {
  color: var(--wiki-matrix) !important;
}

/* Figures are drawn on white. Give them a light frame in dark mode
   rather than inverting them, which would change the plot colours. */
body.quarto-dark #quarto-document-content img {
  background: #ffffff;
  border-radius: 2px;
  padding: 4px;
}

#quarto-document-content {
  max-width: 52rem;
}

/* Headings */

h1.title,
#quarto-document-content h2,
.portal-box h3 {
  font-family: "Linux Libertine", Georgia, "Times New Roman", serif;
  font-weight: normal;
}

h1.title {
  font-size: 2rem;
  border-bottom: 1px solid var(--wiki-border);
  padding-bottom: 0.2rem;
  margin-bottom: 0.4rem;
}

#quarto-document-content h2 {
  font-size: 1.55rem;
  border-bottom: 1px solid var(--wiki-border);
  padding-bottom: 0.15rem;
  margin-top: 1.8rem;
}

#quarto-document-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 1.3rem;
}

/* A callout's own title is not a section heading. */
.callout h2,
.callout .callout-title-container {
  border-bottom: 0 !important;
  font-family: inherit !important;
  font-size: 1rem !important;
  margin-top: 0 !important;
}

/* Links */

a {
  color: var(--wiki-link);
  text-decoration: none;
}

a:hover {
  color: var(--wiki-link-hover);
  text-decoration: underline;
}

code, pre, kbd, samp, .sourceCode {
  font-family: Consolas, "Cascadia Mono", "Courier New", monospace;
}

/* Hatnote: the italic line under the title on Wikipedia. */

.hatnote {
  color: var(--wiki-muted);
  font-size: 0.92rem;
  padding: 0 0 0.6rem 1.6rem;
  margin: 0 0 1rem;
  border-bottom: 1px solid var(--wiki-panel-head);
  line-height: 1.7;
}

.hatnote p {
  margin: 0;
}

.hatnote a.qnav {
  display: inline-block;
  border: 1px solid var(--wiki-border);
  background: var(--wiki-panel);
  border-radius: 2px;
  padding: 0 0.5rem;
  margin-left: 0.35rem;
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: nowrap;
  /* A long title is cut short with an ellipsis rather than widening the page. */
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

.hatnote a.qnav:hover {
  background: var(--wiki-panel-head);
  text-decoration: none;
}

/* Question tables */

.qtable table {
  font-size: 0.93rem;
  width: 100% !important;
  border: 1px solid var(--wiki-border);
  border-collapse: collapse;
  margin: 0.4rem 0 1.2rem;
}

.qtable th {
  background: var(--wiki-panel-head);
  font-weight: 600;
}

.qtable th,
.qtable td {
  border: 1px solid var(--wiki-rule);
  padding: 0.28rem 0.6rem;
  vertical-align: top;
}

.qtable tbody tr:nth-child(even) {
  background: var(--wiki-panel);
}

.qtable td:last-child,
.qtable th:last-child {
  width: 4.5rem;
  text-align: center;
}

.qfilter {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.8rem 0 0.4rem;
}

.qfilter input {
  flex: 1;
  max-width: 28rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--wiki-border);
  border-radius: 2px;
  font: inherit;
  background: var(--wiki-bg);
  color: var(--wiki-text);
}

.qfilter-count {
  color: var(--wiki-muted);
  font-size: 0.9rem;
}

/* Term links: a link to where a term is defined. */

a.term {
  color: inherit;
  text-decoration: underline dotted var(--wiki-link);
  text-underline-offset: 0.2em;
}

a.term:hover {
  color: var(--wiki-link);
}

/* Link preview card */

#wiki-preview {
  position: fixed;
  z-index: 2000;
  width: min(26rem, calc(100vw - 24px));
  max-height: 22rem;
  overflow: hidden;
  background: var(--wiki-bg);
  border: 1px solid var(--wiki-border);
  border-radius: 2px;
  box-shadow: var(--wiki-shadow);
  padding: 0.7rem 0.9rem 0.6rem;
  font-size: 0.88rem;
  line-height: 1.5;
}

#wiki-preview .wp-title {
  font-family: "Linux Libertine", Georgia, "Times New Roman", serif;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
  color: var(--wiki-text);
}

#wiki-preview .wp-hat,
#wiki-preview .wp-note {
  color: var(--wiki-muted);
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
  padding: 0;
  border: 0;
}

#wiki-preview .wp-body {
  max-height: 17.5rem;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, #000 80%, transparent);
  mask-image: linear-gradient(to bottom, #000 80%, transparent);
}

#wiki-preview p {
  margin: 0 0 0.45rem;
}

#wiki-preview img {
  max-width: 100%;
  max-height: 9rem;
}

#wiki-preview img.wp-thumb {
  float: right;
  width: 9.5rem;
  max-height: 8rem;
  object-fit: contain;
  margin: 0 0 0.4rem 0.6rem;
  background: #ffffff;
  border: 1px solid var(--wiki-rule);
}

#wiki-preview .katex-display {
  margin: 0.3rem 0;
  overflow: hidden;
}

#wiki-preview .wp-title .wp-note {
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  margin: 0.1rem 0 0;
}

#wiki-preview table {
  font-size: 0.8rem;
}

/* Infobox: the summary box at the top right of an article or chapter. */

.infobox {
  float: right;
  clear: right;
  width: 21rem;
  margin: 0.2rem 0 1rem 1.4rem;
  padding: 0.25rem 0.45rem 0.45rem;
  background: var(--wiki-panel);
  border: 1px solid var(--wiki-border);
  font-size: 0.85rem;
  line-height: 1.45;
}

.infobox-title {
  font-family: "Linux Libertine", Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: bold;
  text-align: center;
  padding: 0.25rem 0.3rem 0.35rem;
}

.infobox .quarto-figure,
.infobox figure {
  margin: 0 0 0.45rem;
  text-align: center;
}

.infobox img {
  max-width: 100%;
  height: auto;
  background: #ffffff;
}

.infobox figcaption {
  font-size: 0.78rem;
  color: var(--wiki-muted);
  margin-top: 0.2rem;
  text-align: center;
}

#quarto-document-content .infobox table {
  display: table;
  width: 100%;
  margin: 0;
  border: 0;
  font-size: 0.85rem;
}

.infobox thead {
  display: none;
}

.infobox td {
  border: 0 !important;
  border-top: 1px solid var(--wiki-rule) !important;
  padding: 0.28rem 0.3rem !important;
  vertical-align: top;
  background: transparent !important;
}

.infobox td:first-child {
  font-weight: 600;
  width: 34%;
  white-space: normal;
}

.infobox .katex {
  font-size: 1em;
}

.infobox-note {
  color: var(--wiki-muted);
  font-size: 0.75rem;
  margin-top: 0.4rem;
}

.infobox-note p {
  margin: 0 0 0.25rem;
}

/* Wide blocks beside the infobox give way to it rather than run under it. */
#quarto-document-content .callout,
#quarto-document-content .theorem,
#quarto-document-content .qtable {
  overflow: hidden;
}

@media (max-width: 767px) {
  .infobox {
    float: none;
    width: auto;
    margin: 0 0 1rem;
  }
}

/* "Main article:" under a Properties or Examples heading. */

.mainarticle {
  font-style: italic;
  color: var(--wiki-muted);
  padding-left: 1.6rem;
  margin: -0.2rem 0 0.6rem;
  font-size: 0.92rem;
}

.mainarticle p {
  margin: 0;
}

/* A chapter box or distribution card points up to its article. */

p:has(> a.box-article) {
  text-align: right;
  margin: 0.2rem 0 0;
  font-size: 0.85rem;
}

a.box-article {
  color: var(--wiki-muted);
}

a.box-article:hover {
  color: var(--wiki-link);
}

/* Glossary */

.glossary-jump {
  font-size: 1.05rem;
  margin: 0.6rem 0 0.4rem;
  word-spacing: 0.1rem;
}

.qtable.glossary td:last-child,
.qtable.glossary th:last-child {
  width: 14rem;
  text-align: left;
}

.qtable.glossary td:first-child {
  width: 15rem;
}

.gtype {
  display: block;
  color: var(--wiki-muted);
  font-size: 0.78rem;
}

/* Worked answer: folded away until asked for. */

#worked-answer {
  margin-top: 2rem;
}

/* Main page portal */

.portal-intro {
  background: var(--wiki-panel);
  border: 1px solid var(--wiki-border);
  padding: 0.8rem 1rem;
  margin: 0.4rem 0 1.2rem;
}

.portal-intro p {
  margin: 0;
}

.portal {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.4rem;
}

.portal-box {
  border: 1px solid var(--wiki-border);
  background: var(--wiki-bg);
}

.portal-box h3 {
  background: var(--wiki-panel-head);
  border-bottom: 1px solid var(--wiki-border);
  font-size: 1.15rem;
  margin: 0 !important;
  padding: 0.35rem 0.75rem;
}

.portal-box ul {
  margin: 0.55rem 0 0.4rem;
  padding-left: 1.9rem;
  font-size: 0.93rem;
}

.portal-box li {
  margin: 0.12rem 0;
}

.portal-box p {
  margin: 0 0.75rem 0.55rem;
  font-size: 0.9rem;
}

.portal-more {
  font-weight: 600;
}

/* Sidebar and contents, kept quiet. */

.sidebar-navigation .sidebar-item {
  font-size: 0.9rem;
}

#TOC .toc-actions,
nav#TOC h2 {
  font-family: inherit;
}

/* Distribution sheet */

.dist-card {
  border: 1px solid var(--wiki-border);
  padding: 0.2rem 1rem 0.3rem;
  margin: 0 0 0.9rem;
  background: var(--wiki-bg);
}

.dist-card h3 {
  margin-top: 0.85rem;
}

/* Wide tables and equations scroll inside the page on small screens. */

#quarto-document-content table {
  display: block;
  overflow-x: auto;
}

.qtable table {
  display: table;
}

.katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.1rem 0;
}

@media (max-width: 767px) {
  .hatnote {
    padding-left: 0;
  }

  .qtable td:last-child,
  .qtable th:last-child {
    width: 3rem;
  }
}

/* A wide data table scrolls inside its own box on a narrow screen,
   so the page itself never scrolls sideways. */
@media (max-width: 767px) {
  main table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
  }
  main .infobox table,
  main .qtable table {
    display: table;
  }
}

/* KaTeX keeps a hidden MathML copy of each formula for screen readers. It is
   absolutely positioned, so without a positioned ancestor it can stretch the
   page sideways on a phone. */
.katex {
  position: relative;
}

/* Figures open their file page, as on Wikipedia. */
a.file-link img {
  cursor: zoom-in;
}

.file-page {
  border: 1px solid var(--wiki-border);
  background: var(--wiki-panel);
  padding: 0.75rem;
  margin: 0.5rem 0 1rem;
  text-align: center;
}

.file-page img {
  max-width: 100%;
  height: auto;
  background: #fff;
}

.file-page p:last-child {
  margin: 0.4rem 0 0;
  font-size: 0.85rem;
}

.file-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.file-gallery p {
  display: contents;
}

.file-gallery a {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--wiki-border);
  background: #fff;
  padding: 0.3rem;
}

.file-gallery img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* Long names in inline code, such as a figure's source file, may break
   anywhere rather than widen the page on a phone. */
main p code,
main li code {
  overflow-wrap: anywhere;
}