/* Omni-Lattice Course — online course reading surface (edition 1.0) */
:root {
  --olc-ink: #0c1220;
  --olc-ink-soft: #2a3548;
  --olc-muted: #5c6b7f;
  --olc-paper: #f7f3ea;
  --olc-paper-deep: #efe8d8;
  --olc-navy: #0b1c33;
  --olc-navy-mid: #14304f;
  --olc-gold: #c9a227;
  --olc-gold-soft: #e8d48b;
  --olc-line: rgba(12, 18, 32, 0.12);
  --olc-shadow: 0 18px 48px rgba(11, 28, 51, 0.12);
  --olc-serif: "Cormorant Garamond", "Palatino Linotype", Palatino, serif;
  --olc-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --olc-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --olc-max: 44rem;
  --olc-wrap: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.olc {
  margin: 0;
  min-height: 100vh;
  color: var(--olc-ink);
  font-family: var(--olc-sans);
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(201, 162, 39, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 8%, rgba(20, 48, 79, 0.08), transparent 50%),
    linear-gradient(180deg, #fbf8f1 0%, var(--olc-paper) 42%, #f3eee3 100%);
}

a {
  color: var(--olc-navy-mid);
}

a:hover {
  color: var(--olc-gold);
}

.olc-skip {
  position: absolute;
  left: -9999px;
}

.olc-skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  background: var(--olc-navy);
  color: var(--olc-gold-soft);
}

/* —— Top nav —— */
.olc-top {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 28, 51, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 162, 39, 0.35);
}

.olc-top__inner {
  max-width: var(--olc-wrap);
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.olc-brand {
  font-family: var(--olc-display);
  letter-spacing: 0.08em;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--olc-gold-soft);
}

.olc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
}

.olc-nav a {
  color: rgba(247, 243, 234, 0.88);
  text-decoration: none;
  font-size: 0.84rem;
}

.olc-nav a:hover {
  color: var(--olc-gold-soft);
}

/* —— Hero —— */
.olc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.75rem, 7vw, 4.75rem) 1.25rem 3rem;
  background:
    linear-gradient(135deg, rgba(11, 28, 51, 0.96), rgba(20, 48, 79, 0.9)),
    radial-gradient(800px 400px at 80% 20%, rgba(201, 162, 39, 0.22), transparent 60%);
  color: var(--olc-paper);
}

.olc-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 162, 39, 0.65), transparent);
}

.olc-hero__grid {
  max-width: 42rem;
  margin: 0 auto;
}

.olc-kicker {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--olc-gold-soft);
}

.olc-hero h1 {
  margin: 0 0 0.75rem;
  font-family: var(--olc-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 7vw, 4.1rem);
  letter-spacing: 0.04em;
  line-height: 0.95;
  color: #fff;
}

.olc-lede {
  margin: 0;
  font-family: var(--olc-serif);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  line-height: 1.45;
  color: rgba(247, 243, 234, 0.92);
}

.olc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.olc-hero__meta {
  margin: 1.1rem 0 0;
  font-size: 0.84rem;
  color: rgba(247, 243, 234, 0.72);
}

.olc-progress-track {
  margin-top: 1.25rem;
  height: 4px;
  background: rgba(247, 243, 234, 0.18);
  border-radius: 2px;
  overflow: hidden;
}

.olc-progress-track__fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--olc-gold), var(--olc-gold-soft));
  transition: width 0.4s ease;
}

/* —— Buttons —— */
.olc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.15rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.olc-btn:hover {
  transform: translateY(-1px);
}

.olc-btn--gold {
  background: var(--olc-gold);
  color: var(--olc-navy);
}

.olc-btn--ghost {
  border-color: rgba(232, 212, 139, 0.55);
  color: var(--olc-gold-soft);
  background: transparent;
}

.olc-btn--ghost-ink {
  border-color: var(--olc-line);
  color: var(--olc-navy);
  background: rgba(255, 252, 246, 0.85);
}

.olc-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* —— Honesty band —— */
.olc-honesty {
  max-width: var(--olc-wrap);
  margin: 0 auto;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--olc-gold);
  background: rgba(201, 162, 39, 0.08);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--olc-ink-soft);
}

.olc-honesty strong {
  display: inline;
  margin-right: 0.35rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--olc-navy);
}

/* —— Sections —— */
.olc-section {
  padding: 2.75rem 1.25rem;
}

.olc-section--toc {
  background: rgba(11, 28, 51, 0.03);
  border-top: 1px solid var(--olc-line);
  border-bottom: 1px solid var(--olc-line);
}

.olc-wrap {
  max-width: var(--olc-wrap);
  margin: 0 auto;
}

.olc-section__eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--olc-gold);
}

.olc-section h2 {
  margin: 0 0 0.5rem;
  font-family: var(--olc-serif);
  font-weight: 600;
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  color: var(--olc-navy);
}

.olc-section__lede {
  margin: 0 0 1.5rem;
  max-width: 40rem;
  color: var(--olc-ink-soft);
  line-height: 1.55;
}

.olc-outcomes {
  margin: 0 0 1.75rem;
  padding: 1rem 1.15rem;
  background: rgba(255, 252, 246, 0.8);
  border: 1px solid var(--olc-line);
}

.olc-outcomes h3 {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-outcomes ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--olc-ink-soft);
  line-height: 1.55;
}

/* —— Syllabus cards —— */
.olc-syllabus {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .olc-syllabus {
    grid-template-columns: 1fr 1fr;
  }
}

.olc-mod {
  padding: 1.15rem 1.2rem 1.25rem;
  background: rgba(255, 252, 246, 0.9);
  border: 1px solid var(--olc-line);
  box-shadow: var(--olc-shadow);
  animation: olc-in 0.4s ease both;
}

.olc-mod__label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--olc-gold);
}

.olc-mod h3 {
  margin: 0 0 0.45rem;
  font-family: var(--olc-serif);
  font-size: 1.35rem;
  color: var(--olc-navy);
}

.olc-mod > p {
  margin: 0 0 0.75rem;
  color: var(--olc-ink-soft);
  line-height: 1.5;
  font-size: 0.95rem;
}

.olc-mod__outcomes {
  margin: 0 0 0.85rem;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--olc-ink-soft);
  line-height: 1.45;
}

.olc-mod__homework {
  margin: 0 0 0.9rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(201, 162, 39, 0.45);
  border-radius: 10px;
  background: rgba(201, 162, 39, 0.08);
}

.olc-mod__homework h4 {
  margin: 0 0 0.4rem;
  font-family: var(--olc-display);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-mod__homework ol {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  color: var(--olc-ink-soft);
  line-height: 1.5;
}

.olc-mod__homework li {
  margin: 0 0 0.3rem;
}

.olc-mod__homework a {
  color: var(--olc-navy-mid);
  text-decoration: underline;
  text-decoration-color: rgba(201, 162, 39, 0.6);
}

.olc-mod__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  color: var(--olc-muted);
}

.olc-mod__links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.olc-mod__links a {
  text-decoration: none;
  font-size: 0.88rem;
  color: var(--olc-navy-mid);
}

.olc-mod__links a:hover {
  color: var(--olc-gold);
}

.olc-mod__links a.is-done::before {
  content: "✓ ";
  color: var(--olc-gold);
}

.olc-mod__cta {
  margin-top: 0.9rem;
}

/* —— TOC —— */
.olc-toc__part {
  margin-bottom: 1.5rem;
}

.olc-toc__part h3 {
  margin: 0 0 0.5rem;
  font-family: var(--olc-display);
  font-weight: 400;
  letter-spacing: 0.08em;
  font-size: 1.2rem;
  color: var(--olc-navy);
}

.olc-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.olc-toc li a {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  gap: 0.65rem;
  align-items: baseline;
  padding: 0.45rem 0.35rem;
  text-decoration: none;
  border-bottom: 1px solid var(--olc-line);
  color: var(--olc-ink-soft);
}

.olc-toc li a:hover {
  background: rgba(201, 162, 39, 0.1);
}

.olc-toc__num {
  font-size: 0.78rem;
  color: var(--olc-gold);
  letter-spacing: 0.04em;
}

.olc-toc__title {
  font-family: var(--olc-serif);
  font-size: 1.05rem;
  color: var(--olc-navy);
}

.olc-toc__meta {
  font-size: 0.78rem;
  color: var(--olc-muted);
}

/* —— Reader —— */
.olc-reader {
  padding: 0 0 3rem;
  background: rgba(255, 252, 246, 0.55);
  border-top: 1px solid var(--olc-line);
}

.olc-reader__shell {
  max-width: var(--olc-wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 16.5rem minmax(0, 1fr);
  min-height: 70vh;
}

.olc-sidebar {
  position: sticky;
  top: 3.1rem;
  align-self: start;
  max-height: calc(100vh - 3.1rem);
  overflow: auto;
  padding: 1.1rem 0.75rem 2rem 1rem;
  border-right: 1px solid var(--olc-line);
  background: rgba(247, 243, 234, 0.85);
}

.olc-sidebar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.olc-sidebar__head strong {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-sidebar__close {
  display: none;
  border: 0;
  background: transparent;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--olc-muted);
}

.olc-sidebar__part {
  margin: 0.9rem 0 0.3rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--olc-muted);
}

.olc-sidebar__nav a {
  display: block;
  padding: 0.3rem 0.4rem;
  margin: 0.05rem 0;
  text-decoration: none;
  color: var(--olc-ink-soft);
  font-size: 0.82rem;
  line-height: 1.3;
  border-radius: 2px;
}

.olc-sidebar__nav a span {
  color: var(--olc-gold);
  margin-right: 0.25rem;
}

.olc-sidebar__nav a:hover,
.olc-sidebar__nav a[aria-current="page"] {
  background: rgba(201, 162, 39, 0.16);
  color: var(--olc-navy);
}

.olc-sidebar__nav a.is-done {
  opacity: 0.85;
}

.olc-stage {
  padding: 1.25rem 1.25rem 2.5rem;
}

.olc-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.olc-toolbar__progress {
  margin: 0;
  flex: 1;
  font-size: 0.84rem;
  color: var(--olc-muted);
  text-align: center;
}

.olc-toolbar__nav {
  display: flex;
  gap: 0.4rem;
}

.olc-icon-btn {
  border: 1px solid var(--olc-line);
  background: rgba(255, 252, 246, 0.95);
  color: var(--olc-navy);
  padding: 0.4rem 0.7rem;
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}

.olc-icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.olc-page {
  max-width: var(--olc-max);
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: rgba(255, 252, 246, 0.95);
  border: 1px solid var(--olc-line);
  box-shadow: var(--olc-shadow);
  animation: olc-in 0.35s ease;
}

.olc-page:focus {
  outline: none;
}

.olc-page__loading {
  margin: 0;
  color: var(--olc-muted);
  font-family: var(--olc-serif);
  font-size: 1.15rem;
}

.olc-page__crumb {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--olc-muted);
}

.olc-page__part {
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--olc-gold);
}

.olc-page__title {
  margin: 0 0 0.5rem;
  font-family: var(--olc-serif);
  font-size: clamp(1.7rem, 3.5vw, 2.35rem);
  line-height: 1.15;
  color: var(--olc-navy);
}

.olc-page__num {
  color: var(--olc-gold);
  font-weight: 600;
}

.olc-page__meta {
  margin: 0 0 1rem;
  font-size: 0.86rem;
  color: var(--olc-muted);
}

.olc-page__tagline {
  margin: 0 0 1.25rem;
  font-family: var(--olc-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--olc-ink-soft);
}

.olc-objectives {
  margin: 0 0 1.35rem;
  padding: 0.9rem 1rem;
  background: rgba(11, 28, 51, 0.04);
  border: 1px solid var(--olc-line);
}

.olc-objectives h3 {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--olc-sans);
  color: var(--olc-navy);
}

.olc-objectives ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--olc-ink-soft);
  line-height: 1.5;
}

.olc-prose {
  font-family: var(--olc-serif);
  font-size: 1.12rem;
  line-height: 1.72;
  color: var(--olc-ink-soft);
}

.olc-prose p {
  margin: 0 0 0.95rem;
}

.olc-prose h3 {
  font-size: 1.3rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--olc-navy);
}

.olc-prose ul,
.olc-prose ol {
  padding-left: 1.2rem;
  margin: 0 0 0.95rem;
}

.olc-prose li {
  margin: 0.35rem 0;
}

.olc-prose blockquote {
  margin: 1.1rem 0;
  padding: 0.65rem 0 0.65rem 1rem;
  border-left: 3px solid var(--olc-gold);
  font-style: italic;
  color: var(--olc-navy);
}

.olc-prose .honesty-rail,
.olc-prose aside.honesty-rail {
  display: block;
  margin: 1.25rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--olc-gold);
  background: rgba(201, 162, 39, 0.08);
  font-family: var(--olc-sans);
  font-size: 0.9rem;
  line-height: 1.5;
}

.olc-prose .close-glyph {
  margin-top: 1.5rem;
  font-size: 1.25rem;
  color: var(--olc-gold);
}

/* —— Teaching blocks —— */
.olc-prose .worked-example,
.olc-prose .misconception,
.olc-prose .key-terms {
  display: block;
  margin: 1.35rem 0;
  padding: 1rem 1.1rem 0.9rem;
  font-size: 1rem;
  line-height: 1.6;
}

.olc-prose .worked-example::before,
.olc-prose .misconception::before,
.olc-prose .key-terms::before {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--olc-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.olc-prose .worked-example {
  background: rgba(201, 162, 39, 0.1);
  border: 1px solid rgba(201, 162, 39, 0.35);
  border-left: 3px solid var(--olc-gold);
}

.olc-prose .worked-example::before {
  content: "Worked example";
  color: var(--olc-gold);
}

.olc-prose .misconception {
  background: rgba(178, 96, 42, 0.08);
  border-left: 3px solid #b2602a;
}

.olc-prose .misconception::before {
  content: "A common mix-up";
  color: #b2602a;
}

.olc-prose .misconception p,
.olc-prose .worked-example p {
  margin: 0 0 0.7rem;
}

.olc-prose .misconception p:last-child,
.olc-prose .worked-example p:last-child {
  margin-bottom: 0;
}

.olc-prose .key-terms {
  background: rgba(11, 28, 51, 0.04);
  border: 1px solid var(--olc-line);
}

.olc-prose .key-terms::before {
  content: "Key terms";
  color: var(--olc-navy);
}

.olc-prose .key-terms dl {
  margin: 0;
}

.olc-prose .key-terms dt {
  font-family: var(--olc-sans);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--olc-navy);
}

.olc-prose .key-terms dd {
  margin: 0.15rem 0 0.7rem;
  padding-left: 0;
  font-size: 0.98rem;
  color: var(--olc-ink-soft);
}

.olc-prose .key-terms dd:last-child {
  margin-bottom: 0;
}

/* —— Mark lesson complete —— */
.olc-complete {
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--olc-line);
  text-align: center;
}

.olc-complete__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border: 1px solid var(--olc-gold);
  background: var(--olc-gold);
  color: var(--olc-navy);
  font: inherit;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.olc-complete__btn:hover {
  transform: translateY(-1px);
}

.olc-complete__btn.is-done {
  background: rgba(201, 162, 39, 0.12);
  color: var(--olc-navy);
  border-color: rgba(201, 162, 39, 0.6);
}

.olc-complete__hint {
  margin: 0.6rem 0 0;
  font-size: 0.8rem;
  color: var(--olc-muted);
}

/* —— How to succeed —— */
.olc-succeed {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--olc-line);
}

.olc-succeed h3 {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-succeed p {
  margin: 0;
  color: var(--olc-ink-soft);
  line-height: 1.6;
  font-size: 0.95rem;
}

.olc-check {
  margin: 1.75rem 0 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--olc-line);
  background: rgba(11, 28, 51, 0.03);
}

.olc-check h3 {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-check details {
  margin: 0.5rem 0;
}

.olc-check summary {
  cursor: pointer;
  font-family: var(--olc-serif);
  font-size: 1.05rem;
  color: var(--olc-navy-mid);
  list-style: none;
}

.olc-check summary::-webkit-details-marker {
  display: none;
}

.olc-check summary::before {
  content: "▸ ";
  color: var(--olc-gold);
}

.olc-check details[open] summary::before {
  content: "▾ ";
}

.olc-check .olc-check__a {
  margin: 0.45rem 0 0.25rem;
  padding-left: 1rem;
  font-size: 0.95rem;
  color: var(--olc-ink-soft);
  line-height: 1.5;
}

.olc-further {
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--olc-line);
}

.olc-further h3 {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--olc-navy);
}

.olc-further > p {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  color: var(--olc-muted);
}

.olc-further__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.olc-pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: var(--olc-max);
  margin: 1.25rem auto 0;
}

/* —— Attribution / footer —— */
.olc-attr p {
  color: var(--olc-ink-soft);
  line-height: 1.55;
}

.olc-attr__glyph {
  margin-top: 1.25rem;
  color: var(--olc-gold);
  font-size: 1.2rem;
}

.olc-foot {
  border-top: 1px solid var(--olc-line);
  padding: 1.25rem;
  background: var(--olc-navy);
}

.olc-foot__inner {
  max-width: var(--olc-wrap);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.olc-foot a {
  color: var(--olc-gold-soft);
  text-decoration: none;
  font-size: 0.86rem;
}

.olc-foot a:hover {
  color: #fff;
}

@keyframes olc-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 900px) {
  .olc-reader__shell {
    grid-template-columns: 1fr;
  }

  .olc-sidebar {
    position: fixed;
    inset: 3.1rem auto 0 0;
    width: min(86vw, 20rem);
    z-index: 35;
    transform: translateX(-105%);
    transition: transform 0.25s ease;
    box-shadow: var(--olc-shadow);
    background: #fbf8f1;
  }

  .olc-reader__shell.is-sidebar-open .olc-sidebar {
    transform: none;
  }

  .olc-sidebar__close {
    display: inline-flex;
  }

  .olc-toc li a {
    grid-template-columns: 2.6rem 1fr;
  }

  .olc-toc__meta {
    display: none;
  }
}

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

  .olc-page,
  .olc-mod,
  .olc-btn,
  .olc-progress-track__fill,
  .olc-sidebar {
    animation: none !important;
    transition: none !important;
  }
}