/* geodetic-engine documentation: adjustments on top of the Furo theme. */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

/* Layout. Furo centres the menu, article and "On this page" drawer as one block
   sized for a 46em article, which leaves a blank strip left of the menu once the
   article is wider. Pin the menu to the left edge and let the article, text
   included, take the rest of the window up to --content-max. Under 63em the menu
   is an overlay and Furo's own layout applies. */
:root {
  --glossary-width: 100ch;
  --content-max: 112em;
}

@media (min-width: 63.01em) {
  .sidebar-drawer,
  .sidebar-container {
    width: 17em;
  }

  .content {
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    max-width: var(--content-max);
  }
}

/* The glossary holds nothing wide, so left-aligned it leaves the right of the
   window empty; centre it as one column instead. */
article[role="main"]:has(dl.glossary) {
  max-width: var(--glossary-width);
  margin-inline: auto;
}

article[role="main"] table.align-default {
  margin-left: 0;
}

/* The theme button toggles light and dark only (theme-toggle.js), so the
   system-default state shows the sun or moon in use, not Furo's "auto" icon. */
html body[data-theme="auto"] .theme-toggle svg.theme-icon-when-auto-light,
html body[data-theme="auto"] .theme-toggle svg.theme-icon-when-auto-dark {
  display: none;
}

html body[data-theme="auto"] .theme-toggle svg.theme-icon-when-light {
  display: block;
}

@media (prefers-color-scheme: dark) {
  html body[data-theme="auto"] .theme-toggle svg.theme-icon-when-light {
    display: none;
  }

  html body[data-theme="auto"] .theme-toggle svg.theme-icon-when-dark {
    display: block;
  }
}

/* The fold chevron takes the keyboard focus (expand-nav.js), so show where it is. */
.sidebar-tree li.has-children > label:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: -2px;
  border-radius: 0.3rem;
}

/* Logo in the sidebar: give it room and keep it crisp. */
.sidebar-logo {
  max-width: 100%;
  padding: 0.5rem 0 0.25rem;
}

.sidebar-brand {
  padding-left: 0.25rem;
  padding-right: 0.25rem;
  padding-bottom: 0.25rem;
}

.sidebar-brand-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-foreground-muted);
}

/* Sidebar hierarchy: captions are quiet group labels with a divider, top-level
   entries are bold, and sub-pages hang off a guide line. */
.sidebar-tree .caption {
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-top: 0.6rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--color-background-border);
}

.sidebar-tree .reference {
  line-height: 1.4;
}

.sidebar-tree .toctree-l1 > .reference {
  font-size: 1.05em;
  font-weight: 600;
}

.sidebar-tree .toctree-l1 > ul {
  margin: 0.1rem 0 0.5rem calc(var(--sidebar-item-spacing-horizontal) + 0.1rem);
  border-left: 1px solid var(--color-background-border);
}

.sidebar-tree .toctree-l2 > .reference {
  font-size: 0.95em;
  color: var(--color-foreground-secondary);
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
  padding-left: 0.85rem;
  margin-left: -1px;
  border-left: 2px solid transparent;
}

.sidebar-tree .toctree-l2 > .reference:hover {
  color: var(--color-foreground-primary);
}

.sidebar-tree .toctree-l2.current-page > .reference {
  color: var(--color-brand-primary);
  border-left-color: var(--color-brand-primary);
}

/* Article spacing: Furo's defaults are compact, and pages alternate prose with
   code cells and their output. */
article[role="main"] {
  line-height: 1.65;
}

article[role="main"] p,
article[role="main"] ul,
article[role="main"] ol,
article[role="main"] dl {
  margin-bottom: 1.1rem;
}

article[role="main"] li + li {
  margin-top: 0.3rem;
}

article[role="main"] h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
}

article[role="main"] h3 {
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
}

article[role="main"] .cell,
article[role="main"] div[class^="highlight-"],
article[role="main"] table.docutils,
article[role="main"] .admonition {
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
}

article[role="main"] .cell div[class^="highlight-"] {
  margin: 0;
}

article[role="main"] .cell_output {
  margin-top: 0.6rem;
}

/* Workarounds overview: each group label sits directly on its table. */
section#overview > p:has(+ .table-wrapper) {
  margin: 2.25rem 0 0.5rem;
  font-size: 1.2em;
}

section#overview > p:has(+ .table-wrapper) + .table-wrapper,
section#overview > p:has(+ .table-wrapper) + .table-wrapper > table {
  margin-top: 0;
}

/* Workarounds: each issue's content in its own frame under its title, so one
   issue ends visibly before the next. The frame is drawn on the elements after
   the title, joined edge to edge, since the title shares their section. */
section#known-issues-and-workarounds > section > section {
  margin: 2rem 0;
}

section#known-issues-and-workarounds > section > section > h3 {
  margin: 0 0 0.6rem;
}

section#known-issues-and-workarounds > section > section > :not(h3) {
  margin: 0 0 0 1.5rem;
  padding: 0.4rem 1.4rem 0.4rem 1.9rem;
  background: color-mix(in srgb, var(--color-brand-primary) 4%, transparent);
  border-left: 3px solid color-mix(in srgb, var(--color-brand-primary) 70%, transparent);
  border-right: 1px solid var(--color-background-border);
}

section#known-issues-and-workarounds > section > section > h3 + * {
  padding-top: 1rem;
  border-top: 1px solid var(--color-background-border);
  border-top-right-radius: 0.6rem;
}

section#known-issues-and-workarounds > section > section > :last-child {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-background-border);
  border-bottom-right-radius: 0.6rem;
}

/* Glossary: each definition in a faded box under its term. */
dl.glossary > dt {
  margin-top: 1.4rem;
  padding: 0.3rem 1rem 0.3rem calc(0.6rem + 3px);
  font-size: 1.05em;
  color: var(--color-brand-content);
  border-radius: 0.4rem;
  transition: background-color 0.3s ease;
}

/* A term reached from a link: the tint from color-highlight-on-target, drawn
   as a rounded tab with an accent bar like the definition box below it. The
   whole entry is marked, so the definition takes the tint too. */
dl.glossary > dt:target {
  box-shadow: inset 3px 0 0 var(--color-brand-primary);
  border-radius: 0 0.4rem 0.4rem 0;
}

dl.glossary > dt:target + dd {
  background: var(--color-highlight-on-target);
  border-left-color: var(--color-brand-primary);
}

dl.glossary > dt:first-child {
  margin-top: 0.5rem;
}

dl.glossary > dd {
  margin: 0.4rem 0 0;
  padding: 0.75rem 1rem;
  background: color-mix(in srgb, var(--color-brand-primary) 7%, transparent);
  border-left: 3px solid color-mix(in srgb, var(--color-brand-primary) 55%, transparent);
  border-radius: 0 0.4rem 0.4rem 0;
}

dl.glossary > dd > :last-child {
  margin-bottom: 0;
}

/* Landing page. */
p.lead {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-brand-primary);
  margin-top: -0.5rem;
  margin-bottom: 1rem;
}

.hero {
  margin: 1.5rem 0 1rem;
}

.hero .highlight pre {
  font-size: 0.85rem;
}

/* Cards (sphinx-design): equal height, subtle lift, brand colour on hover. */
.sd-card {
  height: 100%;
  border: 1px solid var(--color-background-border);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.sd-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-brand-primary);
  box-shadow: 0 0.4rem 1.1rem rgba(0, 0, 0, 0.12);
}

.sd-card .sd-card-title {
  font-size: 1.05rem;
  color: var(--color-brand-primary);
}

.sd-card .sd-card-title svg {
  vertical-align: -0.15em;
  margin-right: 0.35rem;
}

/* Executed cells: distinguish input from output and wrap long output lines. */
div.cell div.cell_input {
  border-left: 3px solid var(--color-brand-primary);
  border-radius: 0.2rem;
}

div.cell div.cell_output {
  border-left: 3px solid var(--color-background-border);
  padding-left: 0.75rem;
  margin-top: 0.25rem;
}

div.cell_output pre,
div.output pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.82rem;
  background: transparent;
}

div.cell_output .output.traceback pre {
  color: var(--color-problematic);
}

/* Tables: denser and top aligned. */
table.docutils {
  font-size: 0.92rem;
}

table.docutils td,
table.docutils th {
  vertical-align: top;
}

/* Definition lists on the workarounds page read as labelled fields. */
article dl.simple > dt,
article dl:not(.field-list):not(.py):not(.option-list) > dt {
  font-weight: 600;
  color: var(--color-brand-primary);
}

/* API pages: signatures on one readable block; members indented. */
dl.py > dt {
  font-size: 0.92rem;
  line-height: 1.55;
  padding: 0.35rem 0.6rem;
  background: var(--color-background-secondary);
  border-left: 3px solid var(--color-brand-primary);
  border-radius: 0.2rem;
}

dl.py .sig-param {
  white-space: nowrap;
}

/* Announcement banner: compact. */
.announcement {
  font-size: 0.85rem;
}

.announcement code {
  color: inherit;
  background: rgba(255, 255, 255, 0.15);
}

/* Mermaid diagrams: sized by their own aspect ratio, centred, capped width. */
.mermaid {
  display: block;
  max-width: 56rem;
  margin: 1.25rem auto;
}

.mermaid svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Edge labels: no grey box behind the text. */
.mermaid .labelBkg,
.mermaid .edgeLabel,
.mermaid .edgeLabel p,
.mermaid .edgeLabel span {
  background: transparent !important;
  color: var(--color-foreground-secondary) !important;
}

.mermaid .edgeLabel rect {
  fill: transparent !important;
}