:root {
  --proof: #f4f5f0;
}

.generated-note { margin-top: 4rem; color: var(--muted); font-family: system-ui, sans-serif; font-size: 0.68rem; }

.notes-page h2,
.notes-page h3,
.notes-page h4 { line-height: 1.15; text-wrap: balance; }
.notes-page h2 { margin-top: 2.6rem; font-size: 1.75rem; font-weight: 550; }
.notes-page h3 { margin-top: 2.2rem; font-size: 1.35rem; }
.notes-page h4 { margin-top: 1.8rem; font-size: 1.08rem; }
.notes-page p:not(.section-card-meta) { margin: 0.85rem 0; }

@media (min-width: 621px) {
  .notes-page.chapter-landing,
  .notes-page.section-page { padding-top: clamp(1.5rem, 3vw, 2.5rem); }
}

.source-anchor { display: block; height: 0; }

.outline { margin: 2.5rem 0 0; padding: 0; list-style: none; }
.outline > li { padding: 1.25rem 0; border-top: 1px solid var(--rule); }
.outline h2 { margin: 0; font-size: 1.35rem; }
.outline ol { margin: 0.65rem 0 0 1.3rem; padding: 0; color: var(--muted); }
.outline .unavailable { color: var(--ink); }

.manuscript-outline {
  margin-top: 2.5rem;
}

.outline-group + .outline-group {
  margin-top: 2.5rem;
}

.outline-group > h3 {
  margin: 0 0 0.85rem;
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notes-page .section-card h3,
.notes-page .chapter-card h3 { margin: 0.5rem 0 0; }

.unavailable-chapter {
  background: rgb(255 255 255 / 55%);
}

.unavailable-chapter h3 {
  color: var(--ink);
}

.continuous-section > h3.sectionHead,
.continuous-section > h2.chapterHead { display: none; }

.newtheorem {
  position: relative;
  margin: 1.45rem 0;
  padding: 1rem 1.15rem;
  border-left: 3px solid #a8b9b8;
  background: rgb(255 255 255 / 62%);
}

.newtheorem .head { display: inline; }
.newtheorem .head > span { color: #263e40; }

.proof {
  margin: 1rem 0 1.65rem;
  padding: 0;
  overflow: hidden;
  border-left: 2px solid #c9cdc2;
  background: var(--proof);
}

.proof-toggle {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: italic 1rem Georgia, "Times New Roman", serif;
  text-align: left;
  cursor: pointer;
}

.proof-toggle:hover,
.proof-toggle:focus-visible { background: rgb(255 255 255 / 45%); }

.proof-chevron {
  width: 0.55rem;
  height: 0.55rem;
  margin-left: 1rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-0.15rem);
  transition: transform 150ms ease;
}

.proof[data-collapsed="true"] .proof-chevron { transform: rotate(-45deg); }

.proof-content { padding: 0 1rem 0.85rem; }
.proof-content > p:first-child { margin-top: 0; }
.proof-content > p:first-child > .head { display: none; }
.entry-heading-link {
  border-radius: 0.15rem;
  color: inherit;
  text-decoration: none;
}
.newtheorem .head > .entry-heading-link > span { color: #263e40; }
.entry-heading-link:hover { text-decoration: underline; text-decoration-thickness: 0.08em; text-underline-offset: 0.14em; }
.entry-heading-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 0.16rem; }

dl.enumerate, ul.itemize1 { margin: 1rem 0; }
dt.enumerate { float: left; clear: left; margin-right: 0.5rem; }
dd.enumerate { margin-left: 2rem; }

.figure, .diagram { margin: 1.7rem auto; text-align: center; }
.figure img, .diagram img { max-width: min(100%, 680px); height: auto; }
.diagram-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1.2rem; margin: 1.5rem 0; }
.diagram-row .diagram { flex: 1 1 240px; margin: 0; }
.source-table { margin: 1.7rem auto; overflow-x: auto; }
.source-table table { width: 100%; border-collapse: collapse; font-size: 0.94rem; }
.source-table th, .source-table td { padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.source-table th { color: var(--ink); font-weight: 650; }
.source-table figcaption { margin-top: 0.65rem; color: var(--muted); font-size: 0.86rem; text-align: center; }
.footnotes { margin-top: 2.25rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.86rem; }
.footnotes h2 { margin: 0 0 0.65rem; color: var(--ink); font-size: 0.95rem; }
.footnotes .footnote-text, .footnotes p { display: inline; }
.footnotes .footnote-text + .footnote-text::before { content: " "; }
figcaption { max-width: 62ch; margin: 0.55rem auto 0; color: var(--muted); font-size: 0.82rem; }

.source-reference { color: var(--muted); }
a.source-reference { color: var(--accent); }
.citation { white-space: nowrap; }

mjx-container[display="true"] { overflow-x: auto; overflow-y: hidden; padding: 0.25rem 0; }