html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

:root {
  --rs-bg: #101311;
  --rs-bg-soft: #151917;
  --rs-panel: #191e1b;
  --rs-panel-2: #202622;
  --rs-border: #343c37;
  --rs-border-soft: #272e2a;
  --rs-text: #e8eee9;
  --rs-muted: #abb6af;
  --rs-link: #9bd8b3;
  --rs-link-hover: #c2edd1;
  --rs-accent: #79bd97;
  --rs-code: #dfe8e2;
  --rs-code-bg: #202622;
  --rs-header-height: 50px;
  --bs-body-bg: var(--rs-bg);
  --bs-body-color: var(--rs-text);
  --bs-border-color: var(--rs-border);
  --bs-link-color: var(--rs-link);
  --bs-link-hover-color: var(--rs-link-hover);
}

body {
  background: var(--rs-bg) !important;
  color: var(--rs-text) !important;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16.5px;
  line-height: 1.68;
  padding-top: 0 !important;
  -webkit-font-smoothing: antialiased;
}

input,
button,
select,
textarea {
  font: inherit;
}

a {
  color: var(--rs-link) !important;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--rs-link-hover) !important;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--rs-link);
  outline-offset: 3px;
  box-shadow: none !important;
}

/* Global navigation: a short primary row, with the longer information
   architecture living in accessible dropdowns. */
.navbar.fixed-top {
  position: sticky;
  top: 0;
  min-height: var(--rs-header-height);
  margin: 0;
  padding: 0;
  background: rgba(21, 25, 23, 0.97) !important;
  border: 0;
  border-bottom: 1px solid var(--rs-border-soft);
  box-shadow: none;
  backdrop-filter: blur(12px);
}

.navbar > .container {
  width: min(1180px, calc(100% - 28px));
  max-width: 1180px;
  min-height: var(--rs-header-height);
  padding-right: 0;
  padding-left: 0;
}

.navbar .navbar-brand {
  display: inline-flex;
  align-items: center;
  min-height: var(--rs-header-height);
  margin-right: 1.35rem;
  padding: 0;
  color: var(--rs-text) !important;
  font-size: 0.96rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.navbar .navbar-nav {
  gap: 0.08rem;
}

.navbar .nav-link {
  color: var(--rs-muted) !important;
  font-size: 0.82rem;
  line-height: 1.2;
  text-decoration: none;
}

.navbar .navbar-nav > .nav-item > .nav-link {
  display: flex;
  align-items: center;
  min-height: var(--rs-header-height);
  padding: 0 0.58rem;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-link.active,
.navbar .nav-item.active > .nav-link,
.navbar .show > .nav-link {
  color: var(--rs-text) !important;
  background: transparent !important;
}

.navbar .dropdown-menu {
  min-width: 13.5rem;
  margin-top: 0;
  padding: 0.38rem;
  background: var(--rs-bg-soft) !important;
  border: 1px solid var(--rs-border) !important;
  border-radius: 0.5rem;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

.navbar .dropdown-item,
.dropdown-menu > li > a {
  padding: 0.52rem 0.65rem;
  color: var(--rs-muted) !important;
  font-size: 0.84rem;
  line-height: 1.3;
  text-decoration: none;
  border-radius: 0.32rem;
}

.navbar .dropdown-item:hover,
.navbar .dropdown-item:focus,
.navbar .dropdown-item.active,
.dropdown-menu > li > a:hover,
.dropdown-menu > li > a:focus {
  color: var(--rs-text) !important;
  background: var(--rs-panel-2) !important;
}

.navbar .navbar-nav.ms-md-auto {
  flex: 0 0 auto;
  margin-left: auto !important;
}

/* Previous and next remain available in the page footer. Search and the
   page-specific edit link stay available as compact utilities. */
.navbar .navbar-nav.ms-md-auto > li:nth-child(2),
.navbar .navbar-nav.ms-md-auto > li:nth-child(3) {
  display: none;
}

.navbar .navbar-nav.ms-md-auto a[href*="/edit/main/"] {
  width: 2.4rem;
  overflow: hidden;
  font-size: 0;
  justify-content: center;
}

.navbar .navbar-nav.ms-md-auto a[href*="/edit/main/"]::before {
  content: "Edit";
  font-size: 0.76rem;
}

.navbar-toggler {
  color: var(--rs-text) !important;
  border-color: var(--rs-border) !important;
}

/* Page geometry. */
body > .container {
  width: min(1180px, calc(100% - 32px));
  max-width: 1180px;
  padding-top: 2.2rem;
  padding-bottom: 3rem;
}

body > .container > .row {
  --bs-gutter-x: 3.5rem;
}

[role="main"] {
  min-width: 0;
  max-width: 900px;
  color: var(--rs-text);
}

/* The table of contents is a quiet reading aid, not a second navigation
   panel. Its page-title wrapper is redundant with the visible H1. */
.bs-sidebar {
  color: var(--rs-muted);
}

.bs-sidebar::before {
  display: block;
  margin-bottom: 0.65rem;
  color: #87938b;
  content: "On this page";
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.bs-sidebar .navbar-header {
  display: none;
}

.bs-sidebar #toc-collapse,
.bs-sidebar .card,
.bs-sidebar .nav {
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

.bs-sidebar li[data-bs-level="1"] > a {
  display: none;
}

.bs-sidebar li[data-bs-level="1"] > .nav {
  display: block;
}

.bs-sidebar li[data-bs-level="3"] {
  display: none;
}

.bs-sidebar .nav-link {
  padding: 0.3rem 0 !important;
  color: var(--rs-muted) !important;
  font-size: 0.78rem;
  line-height: 1.4;
  text-decoration: none;
  background: transparent !important;
  border: 0 !important;
}

.bs-sidebar .nav-link:hover,
.bs-sidebar .nav-link:focus,
.bs-sidebar .nav-link.active {
  color: var(--rs-text) !important;
}

.bs-sidebar .nav .nav .nav-link {
  padding-left: 0.75rem !important;
  color: #929e96 !important;
  font-size: 0.73rem;
}

.bs-sidebar .nav .nav .nav-link::before {
  margin-left: -0.72rem;
  margin-right: 0.48rem;
  color: #59635d;
  content: "·";
}

/* The homepage is an orientation surface, so it does not need an on-page
   contents column. */
body.homepage > .container {
  width: min(900px, calc(100% - 32px));
}

.homepage .row > .col-md-3 {
  display: none;
}

.homepage .row > .col-md-9 {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

.homepage [role="main"] > p:first-of-type {
  max-width: 45rem;
  margin-bottom: 0.75rem;
  color: #c7d1cb;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.55;
}

.homepage #explore-the-wiki + ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0;
  margin: 0 0 1rem;
  list-style: none;
  border-top: 1px solid var(--rs-border);
}

.homepage #explore-the-wiki + ul > li {
  padding: 0.8rem 1rem 0.85rem 0;
  margin: 0;
  border-bottom: 1px solid var(--rs-border-soft);
}

.homepage #explore-the-wiki + ul > li:nth-child(even) {
  padding-right: 0;
  padding-left: 1rem;
  border-left: 1px solid var(--rs-border-soft);
}

.homepage #explore-the-wiki + ul a {
  text-decoration: none;
}

/* Reading typography. */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--rs-text) !important;
  font-weight: 650;
  line-height: 1.28;
  letter-spacing: -0.014em;
}

h1 {
  margin-top: 0.15em;
  margin-bottom: 0.65em;
  font-size: clamp(2rem, 4vw, 2.55rem);
}

h2 {
  margin-top: 2.15em;
  margin-bottom: 0.75em;
  padding-bottom: 0.28em;
  font-size: clamp(1.38rem, 2.4vw, 1.7rem);
  border-bottom: 1px solid var(--rs-border-soft);
}

h3 {
  margin-top: 1.75em;
  font-size: 1.18rem;
}

h4 {
  margin-top: 1.55em;
  font-size: 1.02rem;
}

p,
li,
dd,
dt,
td,
th {
  color: var(--rs-text);
}

p,
ul,
ol,
table,
pre,
blockquote {
  margin-bottom: 1.1rem;
}

hr {
  border-color: var(--rs-border);
  opacity: 1;
}

blockquote {
  padding: 0.72rem 0 0.72rem 1rem;
  color: var(--rs-muted);
  background: transparent;
  border-left: 2px solid var(--rs-accent);
}

blockquote p:last-child {
  margin-bottom: 0;
}

code {
  padding: 0.08em 0.3em;
  color: var(--rs-code) !important;
  font-variant-ligatures: none;
  background: var(--rs-code-bg) !important;
  border: 1px solid var(--rs-border-soft);
  border-radius: 4px;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  color: var(--rs-code) !important;
  background: var(--rs-code-bg) !important;
  border: 1px solid var(--rs-border) !important;
  border-radius: 6px;
}

pre code {
  padding: 0;
  background: transparent !important;
  border: 0;
}

.table,
table {
  width: 100%;
  background: transparent !important;
}

table th,
table td,
.table > thead > tr > th,
.table > tbody > tr > td {
  vertical-align: top;
  border-color: var(--rs-border) !important;
}

table th,
.table > thead > tr > th {
  color: var(--rs-text);
  background: var(--rs-panel);
}

table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.016);
}

/* Search and footer surfaces. */
.modal-content,
.form-control,
input[type="text"],
input[type="search"] {
  color: var(--rs-text) !important;
  background: var(--rs-panel) !important;
  border-color: var(--rs-border) !important;
}

.modal-header,
.modal-footer {
  border-color: var(--rs-border) !important;
}

.btn-close {
  filter: invert(1) grayscale(1);
}

footer,
footer p {
  color: var(--rs-muted) !important;
}

footer hr {
  margin-top: 2.5rem;
}

/* Knowledge graph. */
.graph-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: end;
  margin: 1rem 0;
}

.graph-controls label {
  font-weight: 600;
}

.graph-controls input {
  min-width: min(28rem, 80vw);
  padding: 0.62rem 0.72rem;
  border: 1px solid var(--rs-border);
  border-radius: 0.4rem;
}

.graph-controls button {
  padding: 0.62rem 0.82rem;
  color: var(--rs-text);
  cursor: pointer;
  background: var(--rs-panel);
  border: 1px solid var(--rs-border);
  border-radius: 0.4rem;
}

.graph-controls button:hover {
  background: var(--rs-panel-2);
}

#knowledge-graph {
  min-height: 34rem;
  overflow: hidden;
  background: var(--rs-panel);
  border: 1px solid var(--rs-border);
  border-radius: 0.5rem;
}

#knowledge-graph svg {
  display: block;
  width: 100%;
  min-height: 34rem;
  touch-action: none;
}

.graph-edge {
  stroke: #59615d;
  stroke-width: 1.1;
  opacity: 0.72;
}

.graph-node {
  cursor: grab;
  transition: opacity 120ms ease;
}

.graph-node:active {
  cursor: grabbing;
}

.graph-node circle {
  fill: #64717b;
  stroke: var(--rs-bg);
  stroke-width: 1.5;
}

.graph-node.kind-project circle { fill: #5a9475; }
.graph-node.kind-term circle { fill: #7d70a8; }
.graph-node.kind-phrase circle { fill: #9a7558; }
.graph-node.kind-document circle { fill: #58758c; }
.graph-node.kind-concept circle { fill: #6b8fbd; }
.graph-node.kind-motif circle { fill: #9b6f91; }

.graph-node text {
  font-size: 12px;
  pointer-events: none;
  fill: var(--rs-text);
  paint-order: stroke;
  stroke: var(--rs-panel);
  stroke-width: 3px;
  stroke-linejoin: round;
}

.graph-node:focus circle,
.graph-node.graph-match circle {
  stroke: #f2f5f3;
  stroke-width: 2.5;
}

.graph-dim { opacity: 0.1; }

.graph-detail {
  padding: 0.85rem 0 0.85rem 1rem;
  margin: 1rem 0 2rem;
  background: transparent;
  border-left: 2px solid var(--rs-accent);
}

.graph-detail h3 { margin-top: 0; }

.relation-label {
  margin-left: 0.35rem;
  font-size: 0.85em;
  opacity: 0.76;
}

@media (min-width: 992px) {
  .navbar > .container,
  .navbar #navbar-collapse,
  .navbar .navbar-nav {
    display: flex !important;
    align-items: center;
    flex-wrap: nowrap;
  }

  .navbar #navbar-collapse {
    min-width: 0;
  }

  body > .container > .row > .col-md-3 {
    flex: 0 0 19%;
    width: 19%;
  }

  body > .container > .row > .col-md-9 {
    flex: 0 0 81%;
    width: 81%;
  }

  body > .container > .row > .col-md-3:not(:has(.bs-sidebar li[data-bs-level="2"])) {
    display: none;
  }

  body > .container > .row > .col-md-3:not(:has(.bs-sidebar li[data-bs-level="2"])) + .col-md-9 {
    flex-basis: 100%;
    width: 100%;
    margin: 0 auto;
  }

  .bs-sidebar {
    position: sticky;
    top: calc(var(--rs-header-height) + 1.75rem);
    max-height: calc(100vh - var(--rs-header-height) - 3.5rem);
    padding: 0 0.75rem 1rem 0;
    overflow-y: auto;
    scrollbar-width: thin;
  }

  .bs-sidebar #toc-collapse {
    display: block !important;
  }
}

@media (max-width: 991.98px) {
  body {
    padding-top: 0 !important;
    font-size: 16px;
  }

  .navbar > .container,
  body > .container {
    width: calc(100% - 24px);
  }

  .navbar #navbar-collapse {
    max-height: calc(100vh - var(--rs-header-height));
    padding: 0.5rem 0 0.8rem;
    overflow-y: auto;
    background: var(--rs-bg-soft);
  }

  .navbar .navbar-nav {
    gap: 0;
  }

  .navbar .navbar-nav > .nav-item > .nav-link {
    min-height: 0;
    padding: 0.62rem 0;
    font-size: 0.93rem;
  }

  .navbar .navbar-nav.ms-md-auto {
    margin-left: 0 !important;
    border-top: 1px solid var(--rs-border-soft);
  }

  .navbar .navbar-nav.ms-md-auto a[href*="/edit/main/"] {
    width: auto;
    justify-content: flex-start;
  }

  .navbar .navbar-nav .dropdown-menu {
    padding: 0 0 0.35rem 0.8rem;
    margin: 0;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none;
  }

  .navbar .dropdown-item,
  .dropdown-menu > li > a {
    padding: 0.42rem 0.6rem;
  }

  body > .container {
    padding-top: 1.35rem;
  }

  body > .container > .row {
    --bs-gutter-x: 1.5rem;
  }

  [role="main"] {
    max-width: none;
  }

  .bs-sidebar {
    position: static;
    padding: 0;
    margin: 0 0 1.35rem;
  }

  .bs-sidebar::before {
    display: none;
  }

  .bs-sidebar .navbar-header {
    display: block;
  }

  .bs-sidebar .navbar-toggler {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.55rem 0;
    color: var(--rs-muted) !important;
    font-size: 0.78rem;
    text-align: left;
    background: transparent;
    border: 0 !important;
    border-bottom: 1px solid var(--rs-border-soft) !important;
    border-radius: 0;
  }

  .bs-sidebar .navbar-toggler::before {
    content: "On this page";
  }

  .bs-sidebar #toc-collapse {
    padding: 0.55rem 0 0 !important;
    border-bottom: 1px solid var(--rs-border-soft) !important;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.38rem; }

  .homepage #explore-the-wiki + ul {
    grid-template-columns: 1fr;
  }

  .homepage #explore-the-wiki + ul > li,
  .homepage #explore-the-wiki + ul > li:nth-child(even) {
    padding: 0.72rem 0;
    border-left: 0;
  }

  .graph-controls {
    display: block;
  }

  .graph-controls input,
  .graph-controls button {
    width: 100%;
    min-width: 0;
    margin-bottom: 0.65rem;
  }

  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}