:root {
  --hub-paper: #f5f4ed;
  --hub-white: #fffef9;
  --hub-ink: #283c31;
  --hub-muted: #5d675b;
  --hub-rule: #d3d8c9;
  --hub-tint: #e9eddf;
}

body {
  color: var(--hub-ink);
  background: var(--hub-paper);
}

.hub-width {
  width: min(100% - 3rem, 94rem);
  margin-inline: auto;
}

.workspace-notice {
  padding: 0.65rem 1.5rem;
  color: #fffef9;
  background: #283c31;
  font-size: 0.75rem;
  text-align: center;
}

.hub-header {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.5rem;
}

.hub-header .brand strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.hub-header .brand small {
  display: block;
  margin-top: 0.3rem;
  color: var(--hub-muted);
  font-size: 0.55rem;
  letter-spacing: 0.11em;
}

.hub-header > nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
}

.hub-header > nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-size: 0.8rem;
}

.hub-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hub-summary > div {
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--hub-rule);
  border-radius: 0.4rem;
  background: var(--hub-tint);
}

.summary-label {
  display: block;
  color: var(--hub-muted);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hub-summary strong {
  display: block;
  margin-block: 0.35rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.3;
}

.hub-summary a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-size: 0.75rem;
}

.hub-layout {
  display: grid;
  grid-template-columns: 15.5rem minmax(0, 1fr) 12rem;
  gap: 1.5rem;
  align-items: start;
}

.hub-sidebar,
.document-toc {
  position: sticky;
  top: 1.5rem;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
}

.hub-sidebar summary {
  min-height: 2.75rem;
  padding-block: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.document-search {
  display: grid;
  gap: 0.5rem;
  margin-block: 1rem 1.5rem;
}

.document-search label {
  color: var(--hub-muted);
  font-size: 0.7rem;
}

.document-search input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem;
  border: 1px solid var(--hub-rule);
  border-radius: 0.3rem;
  color: var(--hub-ink);
  background: var(--hub-white);
  font: inherit;
  font-size: 0.8rem;
}

.document-search input:focus-visible,
button:focus-visible {
  outline: 3px solid var(--hub-ink);
  outline-offset: 3px;
}

.nav-group {
  margin-block: 1.5rem;
}

.nav-group h2 {
  margin-bottom: 0.6rem;
  color: var(--hub-muted);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-group ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-group a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.55rem 0.65rem;
  border-radius: 0.3rem;
  font-size: 0.8rem;
  line-height: 1.4;
  text-decoration: none;
}

.nav-group a:hover {
  background: var(--hub-tint);
  text-decoration: underline;
}

.nav-group a[aria-current="page"] {
  color: var(--hub-white);
  background: var(--hub-ink);
}

.document-panel {
  min-width: 0;
  padding: clamp(1.25rem, 2.5vw, 2.5rem);
  border: 1px solid var(--hub-rule);
  border-radius: 0.5rem;
  background: var(--hub-white);
}

.document-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--hub-rule);
}

.document-toolbar > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.document-toolbar a,
.document-toolbar button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--hub-rule);
  border-radius: 0.2rem;
  color: var(--hub-ink);
  background: var(--hub-white);
  font: inherit;
  font-size: 0.7rem;
  text-decoration: none;
  cursor: pointer;
}

.document-toolbar [hidden],
.document-pagination [hidden] {
  display: none;
}

.document-feedback {
  margin-block: 1rem;
  padding: 1rem;
  border-left: 3px solid var(--hub-ink);
  color: var(--hub-ink);
  background: var(--hub-tint);
  font-size: 0.85rem;
}

.document-toc h2 {
  margin-block: 0.5rem 1rem;
  color: var(--hub-muted);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.document-toc a {
  display: block;
  min-height: 2.75rem;
  padding-block: 0.5rem;
  color: var(--hub-muted);
  font-size: 0.75rem;
  line-height: 1.5;
  text-decoration: none;
}

.document-toc a:hover {
  color: var(--hub-ink);
  text-decoration: underline;
}

.markdown {
  min-width: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.markdown h1 {
  margin-block: 0.5rem 1.5rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 3.4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.markdown h2 {
  padding-top: 1.5rem;
  margin-block: 2.5rem 1rem;
  border-top: 1px solid var(--hub-rule);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.85rem;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.markdown h3 {
  margin-block: 2rem 1rem;
  font-size: 1.1rem;
  line-height: 1.4;
}

.markdown h4 {
  margin-block: 1.5rem 0.75rem;
  font-size: 1rem;
}

.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  scroll-margin-top: 1.5rem;
}

.markdown p {
  margin-block: 1rem;
}

.markdown li {
  margin-block: 0.5rem;
}

.markdown a {
  text-decoration-thickness: 1px;
}

.markdown a:hover {
  text-decoration-thickness: 2px;
}

.markdown code {
  padding: 0.1rem 0.25rem;
  border-radius: 0.2rem;
  background: #edf0e6;
  font-size: 0.85em;
}

.markdown pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.25rem;
  border: 1px solid var(--hub-rule);
  border-radius: 0.3rem;
  background: #edf0e6;
  font-size: 0.8rem;
  line-height: 1.65;
  overflow-wrap: normal;
}

.markdown pre code {
  padding: 0;
  font-size: inherit;
}

.markdown blockquote {
  padding: 0.25rem 1.25rem;
  margin-inline: 0;
  border-left: 3px solid #8a9b79;
  color: var(--hub-muted);
  background: var(--hub-tint);
}

.markdown-table {
  max-width: 100%;
  overflow-x: auto;
  margin-block: 1.5rem;
  border: 1px solid var(--hub-rule);
  border-radius: 0.3rem;
  overflow-wrap: normal;
}

.markdown table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 0.8rem;
  line-height: 1.65;
  text-align: left;
}

.markdown th,
.markdown td {
  min-width: 7rem;
  padding: 0.9rem;
  border-bottom: 1px solid var(--hub-rule);
  vertical-align: top;
}

.markdown th {
  background: var(--hub-tint);
}

.markdown tr:last-child td {
  border-bottom: 0;
}

.markdown hr {
  margin-block: 2rem;
  border: 0;
  border-top: 1px solid var(--hub-rule);
}

.document-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--hub-rule);
}

.document-pagination a {
  display: inline-flex;
  min-height: 2.75rem;
  max-width: 100%;
  align-items: center;
  font-size: 0.8rem;
}

.hub-footer {
  padding-block: 2rem;
  color: var(--hub-muted);
  font-size: 0.75rem;
}

.hub-footer p + p {
  margin-top: 0.5rem;
}

@media (max-width: 1200px) {
  .hub-layout {
    grid-template-columns: 14rem minmax(0, 1fr);
  }

  .document-toc {
    display: none;
  }
}

@media (max-width: 800px) {
  .document-search input {
    font-size: 1rem;
  }

  .hub-width {
    width: calc(100% - 2.5rem);
  }

  .hub-layout {
    grid-template-columns: 1fr;
  }

  .hub-sidebar {
    position: static;
    max-height: none;
    padding: 1rem;
    border: 1px solid var(--hub-rule);
    border-radius: 0.4rem;
  }

  .hub-summary {
    grid-template-columns: 1fr;
  }

  .hub-summary > div {
    padding: 1rem 1.25rem;
  }

  .document-panel {
    padding: 1.25rem;
  }

  .markdown h1 {
    font-size: 2.1rem;
  }
}

@media print {
  .workspace-notice,
  .hub-header,
  .hub-summary,
  .hub-sidebar,
  .document-toolbar,
  .document-toc,
  .document-pagination,
  .hub-footer {
    display: none;
  }

  .hub-layout {
    display: block;
    width: 100%;
  }

  .document-panel {
    padding: 0;
    border: 0;
  }

  .markdown-table,
  .markdown pre {
    overflow: visible;
  }

  .markdown table {
    min-width: 0;
  }
}