:root {
  --course-ivory: #fbf8f1;
  --course-paper: #fffdf8;
  --course-ink: #18222d;
  --course-muted: #62707d;
  --course-navy: #15263d;
  --course-navy-soft: #213a5a;
  --course-burgundy: #8a4051;
  --course-gold: #b58b3f;
  --course-sage: #4f7065;
  --course-line: #ded7c9;
  --course-shadow: 0 20px 60px rgba(27, 39, 51, 0.09);
  --course-shadow-soft: 0 8px 28px rgba(27, 39, 51, 0.07);
  --course-radius: 20px;
  --course-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --course-sans: "Avenir Next", Avenir, "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
  color-scheme: light;
}

html[data-course-theme="dark"] {
  --course-ivory: #10171e;
  --course-paper: #17212b;
  --course-ink: #edf1f4;
  --course-muted: #aeb9c3;
  --course-navy: #0b1320;
  --course-navy-soft: #1e3651;
  --course-burgundy: #d48a9b;
  --course-gold: #dfb96e;
  --course-sage: #89b2a6;
  --course-line: #33414d;
  --course-shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --course-shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.24);
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  background: var(--course-ivory);
  color: var(--course-ink);
  font-family: var(--course-sans);
  font-size: 1.04rem;
  line-height: 1.72;
  transition: background-color 180ms ease, color 180ms ease;
}

h1, h2, h3, h4, h5, h6,
.quarto-title .title {
  color: var(--course-ink);
  font-family: var(--course-serif);
  font-weight: 650;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.45rem, 5vw, 4.35rem);
  line-height: 1.04;
}

h2 {
  margin-top: 2.8rem;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

h3 {
  margin-top: 2rem;
  font-size: 1.42rem;
}

p, li {
  text-wrap: pretty;
}

a {
  color: var(--course-burgundy);
  text-decoration-color: color-mix(in srgb, var(--course-burgundy) 42%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--course-navy-soft);
  text-decoration-color: currentColor;
}

.navbar {
  min-height: 72px;
  background: color-mix(in srgb, var(--course-navy) 96%, transparent) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(8, 19, 32, 0.13);
  backdrop-filter: blur(12px);
}

.navbar-brand,
.navbar-brand:hover,
.navbar .nav-link,
.navbar .navbar-title,
.navbar .quarto-navbar-tools .quarto-navigation-tool {
  color: #f9f5eb !important;
}

.navbar .nav-link {
  position: relative;
  margin-inline: 0.05rem;
  padding-inline: 0.50rem !important;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.005em;
  white-space: nowrap;
  opacity: 0.84;
}

@media (min-width: 1200px) {
  .navbar .navbar-nav {
    margin-left: 2rem;
    margin-right: 0.15rem;
    transform: none;
  }
}

.dashboard-section[id] {
  scroll-margin-top: 92px;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  background: rgba(255, 255, 255, 0.1);
  opacity: 1;
}

.navbar-brand img {
  width: 36px;
  height: 36px;
  margin-right: 1rem;
}

.course-theme-toggle {
  width: 2.35rem;
  height: 2.35rem;
  margin: auto 0.25rem auto 0.65rem;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff8e9;
  font-size: 1.18rem;
  line-height: 1;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease;
}

.course-theme-toggle:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.15);
}

#quarto-content {
  min-height: calc(100vh - 180px);
}

#quarto-document-content {
  padding-bottom: 3rem;
}

.quarto-title-block .quarto-title-banner,
.quarto-title-block.default .quarto-title-meta {
  background: transparent;
}

.quarto-title-block .description {
  max-width: 760px;
  color: var(--course-muted);
  font-size: 1.14rem;
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6.5rem);
  max-width: 1440px;
  min-height: 650px;
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.25rem, 5vw, 5rem) 4.5rem;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.15rem;
  color: var(--course-burgundy);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 2.4rem;
  height: 1px;
  background: var(--course-gold);
  content: "";
}

.hero-title {
  max-width: 820px;
  margin: 0;
  color: var(--course-navy);
  font-size: clamp(3.25rem, 7vw, 6.4rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

html[data-course-theme="dark"] .hero-title {
  color: var(--course-ink);
}

.hero-lede {
  max-width: 680px;
  margin: 1.7rem 0 2rem;
  color: var(--course-muted);
  font-family: var(--course-serif);
  font-size: clamp(1.25rem, 2.1vw, 1.65rem);
  line-height: 1.52;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.course-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.72rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 750;
  text-decoration: none !important;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.course-button:hover {
  transform: translateY(-2px);
}

.course-button-primary {
  background: var(--course-navy);
  color: #fff8ea !important;
  box-shadow: 0 12px 28px rgba(21, 38, 61, 0.23);
}

.course-button-primary:hover {
  background: var(--course-burgundy);
}

.course-button-secondary {
  border-color: var(--course-line);
  background: var(--course-paper);
  color: var(--course-ink) !important;
  box-shadow: var(--course-shadow-soft);
}

.course-button-secondary:hover {
  border-color: var(--course-gold);
}

.hero-art {
  position: relative;
}

.hero-art::before {
  position: absolute;
  inset: 14% 8% 5% 14%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--course-gold) 24%, transparent), transparent 68%);
  filter: blur(24px);
  content: "";
}

.hero-art img {
  width: min(100%, 680px);
  margin: 0 auto;
  filter: drop-shadow(0 34px 45px rgba(31, 39, 47, 0.17));
}

.course-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 1260px;
  margin: -0.7rem auto 5.5rem;
  border: 1px solid var(--course-line);
  border-radius: var(--course-radius);
  background: var(--course-paper);
  box-shadow: var(--course-shadow);
  overflow: hidden;
}

.course-fact {
  min-height: 126px;
  padding: 1.5rem 1.6rem;
  border-right: 1px solid var(--course-line);
}

.course-fact:last-child {
  border-right: 0;
}

.course-fact-label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--course-muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.course-fact-value {
  color: var(--course-ink);
  font-family: var(--course-serif);
  font-size: 1.13rem;
  line-height: 1.35;
}

.home-section {
  max-width: 1260px;
  margin: 0 auto;
  padding: 1.5rem clamp(1.25rem, 5vw, 4.5rem) 5rem;
}

.section-kicker {
  color: var(--course-burgundy);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 760px;
  margin: 0.5rem 0 2.3rem;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.course-card,
.lecture-card,
.assignment-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 1.8rem;
  border: 1px solid var(--course-line);
  border-radius: var(--course-radius);
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.course-card::after,
.lecture-card::after,
.assignment-card::after {
  position: absolute;
  right: -46px;
  bottom: -60px;
  width: 145px;
  height: 145px;
  border: 1px solid color-mix(in srgb, var(--course-gold) 45%, transparent);
  border-radius: 50%;
  content: "";
}

.course-card:hover,
.lecture-card:hover,
.assignment-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--course-gold) 55%, var(--course-line));
  box-shadow: var(--course-shadow);
}

.card-number {
  margin-bottom: 1.5rem;
  color: var(--course-gold);
  font-family: var(--course-serif);
  font-size: 2.15rem;
  font-style: italic;
}

.course-card h3,
.lecture-card h3,
.assignment-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.55rem;
}

.course-card p,
.lecture-card p,
.assignment-card p {
  color: var(--course-muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: auto;
  font-weight: 750;
  text-decoration: none;
}

.card-link::after {
  content: "→";
  transition: transform 150ms ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

.next-class {
  display: grid;
  grid-template-columns: 0.34fr 1fr auto;
  align-items: center;
  gap: 1.5rem;
  margin: 2.3rem 0 3.2rem;
  padding: 1.6rem 1.8rem;
  border: 1px solid color-mix(in srgb, var(--course-gold) 50%, var(--course-line));
  border-radius: var(--course-radius);
  background:
    linear-gradient(130deg, color-mix(in srgb, var(--course-gold) 10%, var(--course-paper)), var(--course-paper));
  box-shadow: var(--course-shadow-soft);
}

.next-class-date {
  color: var(--course-burgundy);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.next-class h3 {
  margin: 0;
}

.next-class p {
  margin: 0.35rem 0 0;
  color: var(--course-muted);
}

.math-showcase {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  max-width: 1260px;
  margin: 1rem auto 6rem;
  padding: clamp(2rem, 5vw, 4.5rem);
  border-radius: 30px;
  background: var(--course-navy);
  color: #f9f5eb;
  box-shadow: var(--course-shadow);
}

.math-showcase h2,
.math-showcase h3,
.math-showcase a {
  color: #fff8ea;
}

.math-showcase p {
  color: rgba(255, 248, 234, 0.74);
}

.math-showcase-equation {
  display: grid;
  place-items: center;
  min-height: 250px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.055);
  font-family: var(--course-serif);
  font-size: clamp(1.5rem, 4vw, 3.1rem);
  text-align: center;
}

.template-note {
  margin: 1.25rem 0 2rem;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--course-gold);
  border-radius: 0 12px 12px 0;
  background: color-mix(in srgb, var(--course-gold) 10%, var(--course-paper));
  color: var(--course-muted);
  font-size: 0.94rem;
}

.course-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.6rem 0 2.6rem;
}

.course-meta-item {
  padding: 1.15rem;
  border: 1px solid var(--course-line);
  border-radius: 14px;
  background: var(--course-paper);
}

.course-meta-item strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--course-muted);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.course-meta-item span {
  font-family: var(--course-serif);
}

.schedule-table table {
  margin-top: 1.4rem;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--course-line);
  border-radius: 16px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.schedule-table thead th {
  padding: 1rem 0.9rem;
  border-bottom: 1px solid var(--course-line);
  background: var(--course-navy);
  color: #fff8ea;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.schedule-table tbody td {
  padding: 1rem 0.9rem;
  border-color: var(--course-line);
  vertical-align: top;
}

.schedule-table tbody tr:hover td {
  background: color-mix(in srgb, var(--course-gold) 6%, var(--course-paper));
}

.status-badge,
.topic-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.24rem 0.58rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.025em;
  white-space: nowrap;
}

.status-upcoming {
  background: color-mix(in srgb, var(--course-gold) 19%, var(--course-paper));
  color: color-mix(in srgb, var(--course-gold) 80%, var(--course-ink));
}

.status-due {
  background: color-mix(in srgb, var(--course-burgundy) 15%, var(--course-paper));
  color: var(--course-burgundy);
}

.status-complete {
  background: color-mix(in srgb, var(--course-sage) 16%, var(--course-paper));
  color: var(--course-sage);
}

.topic-chip {
  margin: 0.12rem;
  background: color-mix(in srgb, var(--course-navy-soft) 10%, var(--course-paper));
  color: var(--course-navy-soft);
}

html[data-course-theme="dark"] .topic-chip {
  color: #c9d9e8;
}

blockquote {
  margin: 2rem 0;
  padding: 0.4rem 0 0.4rem 1.5rem;
  border-left: 3px solid var(--course-gold);
  color: var(--course-muted);
  font-family: var(--course-serif);
  font-size: 1.18rem;
  font-style: italic;
}

.theorem,
.lemma,
.corollary,
.proposition,
.definition,
.example,
.proof,
.exercise {
  margin: 1.7rem 0;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--course-line);
  border-radius: 14px;
  background: var(--course-paper);
  box-shadow: 0 6px 22px rgba(24, 34, 45, 0.04);
}

.theorem,
.lemma,
.corollary,
.proposition {
  border-left: 5px solid var(--course-burgundy);
}

.definition {
  border-left: 5px solid var(--course-navy-soft);
}

.example {
  border-left: 5px solid var(--course-sage);
}

.exercise {
  border-left: 5px solid var(--course-gold);
  background: color-mix(in srgb, var(--course-gold) 6%, var(--course-paper));
}

.proof {
  border-style: dashed;
  box-shadow: none;
}

.theorem > :first-child,
.lemma > :first-child,
.corollary > :first-child,
.proposition > :first-child,
.definition > :first-child,
.example > :first-child,
.proof > :first-child,
.exercise > :first-child {
  margin-top: 0;
}

.theorem > :last-child,
.lemma > :last-child,
.corollary > :last-child,
.proposition > :last-child,
.definition > :last-child,
.example > :last-child,
.proof > :last-child,
.exercise > :last-child {
  margin-bottom: 0;
}

details.hint {
  margin: 0.8rem 0;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--course-line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--course-sage) 5%, var(--course-paper));
}

details.hint summary {
  color: var(--course-sage);
  font-weight: 750;
  cursor: pointer;
}

.assignment-header {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.5rem 0 2rem;
}

.assignment-header > div {
  padding: 1.15rem;
  border: 1px solid var(--course-line);
  border-radius: 14px;
  background: var(--course-paper);
}

.assignment-header small {
  display: block;
  color: var(--course-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.assignment-header strong {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--course-serif);
  font-size: 1.1rem;
}

.problem {
  margin: 2rem 0;
  padding: 0 0 1.5rem;
  border-bottom: 1px solid var(--course-line);
}

.problem-number {
  display: inline-grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--course-navy);
  color: #fff8ea;
  font-family: var(--course-serif);
  font-weight: 700;
}

.sidebar nav[role="doc-toc"] ul > li > a,
.sidebar nav[role="doc-toc"] ul > li > ul > li > a {
  color: var(--course-muted) !important;
}

.sidebar nav[role="doc-toc"] a.active,
.sidebar nav[role="doc-toc"] a:hover {
  color: var(--course-burgundy) !important;
}

.quarto-page-breadcrumbs .breadcrumb-item a,
.quarto-page-breadcrumbs .breadcrumb-item.active {
  color: var(--course-muted);
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--course-ink);
  --bs-table-border-color: var(--course-line);
}

.callout {
  border-radius: 14px;
  background: var(--course-paper);
}

.callout .callout-header {
  background: color-mix(in srgb, var(--course-navy-soft) 6%, var(--course-paper));
}

pre,
code,
.sourceCode {
  border-radius: 10px;
}

.page-footer {
  background: var(--course-paper);
  color: var(--course-muted);
  border-top-color: var(--course-line) !important;
}

.page-footer a {
  color: var(--course-muted);
}

html[data-course-theme="dark"] .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.26);
}

html[data-course-theme="dark"] .navbar-toggler-icon {
  filter: invert(1);
}

html[data-course-theme="dark"] .form-control,
html[data-course-theme="dark"] .aa-DetachedSearchButton,
html[data-course-theme="dark"] .dropdown-menu {
  border-color: var(--course-line);
  background: var(--course-paper);
  color: var(--course-ink);
}

@media (max-width: 1050px) {
  .hero-shell {
    grid-template-columns: 1fr;
    min-height: auto;
    text-align: center;
  }

  .hero-copy {
    display: grid;
    justify-items: center;
  }

  .eyebrow::before {
    display: none;
  }

  .hero-art {
    max-width: 620px;
    margin: -1rem auto 0;
  }

  .course-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-inline: 1.25rem;
  }

  .course-fact:nth-child(2) {
    border-right: 0;
  }

  .course-fact:nth-child(-n+2) {
    border-bottom: 1px solid var(--course-line);
  }

  .math-showcase {
    grid-template-columns: 1fr;
    margin-inline: 1.25rem;
  }
}

@media (max-width: 780px) {
  body {
    font-size: 1rem;
  }

  .hero-shell {
    padding-top: 3.8rem;
  }

  .hero-title {
    font-size: clamp(3rem, 15vw, 4.7rem);
  }

  .course-facts,
  .card-grid,
  .course-meta-grid,
  .assignment-header {
    grid-template-columns: 1fr;
  }

  .course-fact {
    border-right: 0;
    border-bottom: 1px solid var(--course-line);
  }

  .course-fact:last-child {
    border-bottom: 0;
  }

  .next-class {
    grid-template-columns: 1fr;
  }

  .schedule-table {
    overflow-x: auto;
  }

  .schedule-table table {
    min-width: 760px;
  }

  .course-theme-toggle {
    position: absolute;
    top: 0.95rem;
    right: 4.2rem;
  }
}

@media print {
  .navbar,
  .page-footer,
  .quarto-page-breadcrumbs,
  #quarto-sidebar,
  #quarto-margin-sidebar,
  .course-theme-toggle,
  .js-print,
  .quarto-secondary-nav {
    display: none !important;
  }

  body,
  html[data-course-theme="dark"] body {
    background: #fff !important;
    color: #111 !important;
    font-size: 11pt;
  }

  main.content {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .theorem,
  .lemma,
  .corollary,
  .proposition,
  .definition,
  .example,
  .proof,
  .exercise,
  .assignment-header > div {
    break-inside: avoid;
    box-shadow: none;
    background: #fff !important;
  }

  a {
    color: #111 !important;
    text-decoration: none;
  }
}

.error-page {
  display: grid;
  align-content: center;
  justify-items: start;
  max-width: 980px;
  min-height: calc(100vh - 160px);
  margin: 0 auto;
  padding: 4rem 1.5rem 7rem;
}

.error-page h1 {
  max-width: 780px;
}

.error-page p {
  max-width: 650px;
  color: var(--course-muted);
  font-family: var(--course-serif);
  font-size: 1.22rem;
}

/* ========================================================================== 
   Version 2: student dashboard and class log
   ========================================================================== */

.dashboard-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
  align-items: stretch;
  max-width: 1380px;
  min-height: 460px;
  margin: 2rem auto 2.8rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 32px;
  background:
    radial-gradient(circle at 78% 18%, rgba(223, 185, 110, 0.18), transparent 27%),
    linear-gradient(135deg, #112036 0%, var(--course-navy) 58%, #203b56 100%);
  color: #fff8ea;
  box-shadow: 0 30px 85px rgba(11, 24, 40, 0.23);
  overflow: hidden;
}

.dashboard-hero::after {
  position: absolute;
  inset: auto -8% -55% 38%;
  height: 75%;
  border: 1px solid rgba(223, 185, 110, 0.2);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.dashboard-hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2.7rem, 5vw, 5rem);
}

.hero-course-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: #dfb96e;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-dot {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: currentColor;
}

.dashboard-hero h1 {
  max-width: 780px;
  margin: 0;
  color: #fffaf0;
  font-size: clamp(3.2rem, 6.3vw, 5.8rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
}

.dashboard-tagline {
  margin: 1.3rem 0 0.4rem;
  color: #fff8ea;
  font-family: var(--course-serif);
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  line-height: 1.35;
}

.dashboard-description {
  max-width: 710px;
  margin: 0.45rem 0 0;
  color: rgba(255, 248, 234, 0.72);
  font-size: 1.02rem;
  line-height: 1.65;
}

.dashboard-hero .hero-actions {
  margin-top: 1.6rem;
}

.dashboard-hero .course-button-primary {
  background: #fff8ea;
  color: #15263d !important;
  box-shadow: 0 12px 26px rgba(5, 12, 21, 0.22);
}

.dashboard-hero .course-button-primary:hover {
  background: #dfb96e;
}

.dashboard-hero .course-button-secondary {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.07);
  color: #fff8ea !important;
  box-shadow: none;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-facts > div {
  padding: 1rem 1.15rem 0 0;
}

.hero-facts span {
  display: block;
  margin-bottom: 0.35rem;
  color: rgba(255, 248, 234, 0.52);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-facts strong,
.hero-facts a {
  color: #fff8ea;
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.45;
  text-decoration: none;
}

.dashboard-hero-art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 2.4rem;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.025));
  overflow: hidden;
}

.dashboard-hero-art img {
  width: min(105%, 570px);
  opacity: 0.9;
  filter: drop-shadow(0 26px 40px rgba(0, 0, 0, 0.24));
  transform: rotate(-2deg);
}

.hero-equation {
  position: absolute;
  right: 2.2rem;
  bottom: 1.7rem;
  padding: 0.7rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(10, 22, 37, 0.66);
  color: #fff8ea;
  font-family: var(--course-serif);
  font-size: 1rem;
  backdrop-filter: blur(10px);
}

.hero-equation span {
  margin-left: 0.12rem;
  color: #dfb96e;
  font-size: 0.78em;
}

.dashboard-shell,
.wide-content-shell {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 clamp(1.1rem, 4vw, 3.2rem) 4rem;
}

.syllabus-home {
  display: block !important;
  width: 100%;
}

.syllabus-home > .dashboard-section,
.syllabus-home > .course-disclaimer {
  width: 100%;
  max-width: none;
  grid-column: 1 / -1;
  clear: both;
  box-sizing: border-box;
}

.dashboard-section {
  margin: 0 0 4.6rem;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.section-heading-row h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(2rem, 3.4vw, 3rem);
}

.section-text-link {
  flex: 0 0 auto;
  padding-bottom: 0.35rem;
  color: var(--course-muted);
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
}

.section-text-link:hover {
  color: var(--course-burgundy);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.dashboard-card {
  display: flex;
  flex-direction: column;
  min-height: 270px;
  padding: 1.45rem;
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  transition: transform 170ms ease, box-shadow 170ms ease, border-color 170ms ease;
}

.dashboard-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--course-gold) 55%, var(--course-line));
  box-shadow: var(--course-shadow);
}

.dashboard-card-featured {
  grid-column: span 2;
  background:
    radial-gradient(circle at 90% 10%, rgba(223, 185, 110, 0.12), transparent 33%),
    var(--course-navy);
  color: #fff8ea;
}

.dashboard-card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 1.8rem;
}

.dashboard-card-label {
  color: var(--course-burgundy);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.dashboard-card-featured .dashboard-card-label {
  color: #dfb96e;
}

.dashboard-card-date {
  color: var(--course-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: right;
}

.dashboard-card-featured .dashboard-card-date {
  color: rgba(255, 248, 234, 0.58);
}

.dashboard-card h3 {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.18;
}

.dashboard-card-featured h3 {
  max-width: 620px;
  color: #fff8ea;
  font-size: clamp(1.65rem, 2.6vw, 2.25rem);
}

.dashboard-card p {
  margin: 0.75rem 0 1.5rem;
  color: var(--course-muted);
  line-height: 1.58;
}

.dashboard-card-featured p {
  max-width: 660px;
  color: rgba(255, 248, 234, 0.7);
}

.dashboard-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: auto;
}

.mini-link,
.material-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--course-line);
  border-radius: 999px;
  color: var(--course-ink);
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
}

.mini-link:hover,
.material-link:hover {
  border-color: var(--course-gold);
  color: var(--course-burgundy);
}

.dashboard-card-featured .mini-link {
  border-color: rgba(255, 255, 255, 0.23);
  color: #fff8ea;
}

.materials-panel {
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.materials-head,
.material-row {
  display: grid;
  grid-template-columns: 0.7fr 2.45fr 0.9fr 0.95fr;
  align-items: center;
  gap: 1rem;
}

.materials-head {
  padding: 0.75rem 1.25rem;
  background: color-mix(in srgb, var(--course-navy) 94%, var(--course-paper));
  color: #fff8ea;
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.material-row {
  min-height: 84px;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--course-line);
}

.material-row:first-of-type {
  border-top: 0;
}

.material-row:hover {
  background: color-mix(in srgb, var(--course-gold) 5%, var(--course-paper));
}

.material-kind {
  color: var(--course-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.material-main strong,
.material-main span {
  display: block;
}

.material-main strong {
  font-family: var(--course-serif);
  font-size: 1.08rem;
}

.material-main span {
  margin-top: 0.12rem;
  color: var(--course-muted);
  font-size: 0.86rem;
}

.material-links {
  display: flex;
  justify-content: flex-end;
  gap: 0.35rem;
}

.status-new {
  background: color-mix(in srgb, var(--course-burgundy) 15%, var(--course-paper));
  color: var(--course-burgundy);
}

.status-reference {
  background: color-mix(in srgb, var(--course-navy-soft) 11%, var(--course-paper));
  color: var(--course-navy-soft);
}

.class-log-list {
  border-top: 1px solid var(--course-line);
}

.class-log-entry {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: 1.4rem;
  align-items: start;
  padding: 1.55rem 0;
  border-bottom: 1px solid var(--course-line);
  transition: background 150ms ease;
}

.class-log-entry:hover {
  background: linear-gradient(90deg, color-mix(in srgb, var(--course-gold) 5%, transparent), transparent 74%);
}

.class-log-date span,
.class-log-date small {
  display: block;
}

.class-log-date span {
  color: var(--course-burgundy);
  font-family: var(--course-serif);
  font-size: 1.08rem;
  font-weight: 700;
}

.class-log-date small {
  margin-top: 0.2rem;
  color: var(--course-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.class-log-content h3 {
  margin: 0;
  font-size: 1.3rem;
}

.class-log-content p {
  max-width: 790px;
  margin: 0.5rem 0 0.8rem;
  color: var(--course-muted);
  font-size: 0.94rem;
  line-height: 1.58;
}

.class-log-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.class-log-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
  padding-top: 0.15rem;
}

.class-log-entry-compact:nth-child(n+4) {
  opacity: 0.85;
}

.page-intro-shell {
  max-width: 1260px;
  margin: 0 auto;
  padding: 4.2rem clamp(1.1rem, 4vw, 3.2rem) 2.4rem;
}

.page-intro-shell h1 {
  margin: 0.3rem 0 0.9rem;
}

.page-intro-shell p {
  max-width: 780px;
  color: var(--course-muted);
  font-family: var(--course-serif);
  font-size: 1.22rem;
}

.class-log-toolbar {
  display: grid;
  grid-template-columns: auto minmax(260px, 520px) 1fr;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--course-line);
  border-radius: 16px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
}

.class-log-toolbar label {
  color: var(--course-muted);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.class-log-toolbar input {
  width: 100%;
  min-height: 42px;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--course-line);
  border-radius: 10px;
  background: var(--course-ivory);
  color: var(--course-ink);
}

#class-log-count {
  justify-self: end;
  color: var(--course-muted);
  font-size: 0.82rem;
}

.class-log-empty {
  padding: 3rem 1rem;
  color: var(--course-muted);
  text-align: center;
}

.quick-link-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.quick-link-card {
  display: grid;
  min-height: 175px;
  padding: 1.25rem;
  border: 1px solid var(--course-line);
  border-radius: 16px;
  background: var(--course-paper);
  color: var(--course-ink);
  text-decoration: none;
  box-shadow: var(--course-shadow-soft);
  transition: transform 160ms ease, border-color 160ms ease;
}

.quick-link-card:hover {
  transform: translateY(-3px);
  border-color: var(--course-gold);
}

.quick-link-card span {
  color: var(--course-gold);
  font-family: var(--course-serif);
  font-size: 1.45rem;
  font-style: italic;
}

.quick-link-card strong {
  align-self: end;
  font-family: var(--course-serif);
  font-size: 1.2rem;
}

.quick-link-card small {
  margin-top: 0.25rem;
  color: var(--course-muted);
  line-height: 1.4;
}

.dashboard-philosophy {
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.schedule-now {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1.5rem;
  margin: 1.6rem 0 2.4rem;
  padding: 1.45rem 1.6rem;
  border: 1px solid color-mix(in srgb, var(--course-gold) 50%, var(--course-line));
  border-radius: 18px;
  background: linear-gradient(130deg, color-mix(in srgb, var(--course-gold) 9%, var(--course-paper)), var(--course-paper));
  box-shadow: var(--course-shadow-soft);
}

.schedule-now h3 {
  margin: 0.35rem 0 0.3rem;
}

.schedule-now p {
  margin: 0;
  color: var(--course-muted);
}

@media (max-width: 1180px) {
  .dashboard-hero {
    margin-inline: 1rem;
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-card-featured {
    grid-column: span 2;
  }

  .quick-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .course-disclaimer {
    display: block;
  }

  .course-disclaimer strong {
    display: block;
    margin-bottom: 0.45rem;
  }
}

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

  .dashboard-hero-art {
    display: none;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .hero-facts > div {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .hero-facts > div:last-child {
    border-bottom: 0;
  }

  .materials-head {
    display: none;
  }

  .material-row {
    grid-template-columns: 0.7fr 2fr auto;
  }

  .material-status {
    justify-self: end;
  }

  .material-links {
    grid-column: 2 / -1;
    justify-content: flex-start;
  }

  .class-log-entry {
    grid-template-columns: 120px 1fr;
  }

  .class-log-links {
    grid-column: 2;
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .dashboard-hero {
    margin: 0.8rem 0.6rem 2rem;
    border-radius: 22px;
  }

  .dashboard-hero-copy {
    padding: 2.2rem 1.35rem;
  }

  .dashboard-hero h1 {
    font-size: clamp(3rem, 16vw, 4.4rem);
  }

  .dashboard-grid,
  .quick-link-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-card-featured {
    grid-column: auto;
  }

  .section-heading-row {
    align-items: start;
    flex-direction: column;
    gap: 0.4rem;
  }

  .material-row {
    grid-template-columns: 1fr auto;
    gap: 0.65rem;
  }

  .material-kind {
    grid-column: 1 / -1;
  }

  .material-main {
    grid-column: 1;
  }

  .material-status {
    grid-column: 2;
    grid-row: 2;
  }

  .material-links {
    grid-column: 1 / -1;
  }

  .class-log-entry {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .class-log-links {
    grid-column: 1;
  }

  .class-log-toolbar {
    grid-template-columns: 1fr;
  }

  #class-log-count {
    justify-self: start;
  }

  .schedule-now {
    grid-template-columns: 1fr;
  }
}

@media print {
  .dashboard-hero,
  .dashboard-section,
  .page-intro-shell,
  .wide-content-shell {
    max-width: none;
    margin: 0;
    padding-inline: 0;
  }

  .dashboard-hero {
    min-height: auto;
    border: 1px solid #bbb;
    background: #fff !important;
    color: #111 !important;
    box-shadow: none;
  }

  .dashboard-hero h1,
  .dashboard-tagline,
  .dashboard-description,
  .hero-facts strong,
  .hero-facts a {
    color: #111 !important;
  }

  .dashboard-hero-art,
  .class-log-toolbar,
  .section-text-link {
    display: none !important;
  }
}

/* Present the announcement as a calm, full-width update rather than an orphan card. */
.dashboard-card[data-dashboard-card="announcement"] {
  grid-column: 1 / -1;
  grid-template-columns: 1.05fr 1.25fr 2fr auto;
  align-items: center;
  min-height: 0;
  padding-block: 1.05rem;
  background: linear-gradient(90deg, color-mix(in srgb, var(--course-burgundy) 7%, var(--course-paper)), var(--course-paper));
}

.dashboard-card[data-dashboard-card="announcement"] .dashboard-card-topline {
  display: block;
  margin: 0;
}

.dashboard-card[data-dashboard-card="announcement"] .dashboard-card-date {
  display: block;
  margin-top: 0.25rem;
  text-align: left;
}

.dashboard-card[data-dashboard-card="announcement"] h3,
.dashboard-card[data-dashboard-card="announcement"] p,
.dashboard-card[data-dashboard-card="announcement"] .dashboard-card-links {
  margin: 0;
}

.dashboard-card[data-dashboard-card="announcement"] p {
  padding-right: 1rem;
}

@media (max-width: 900px) {
  .dashboard-card[data-dashboard-card="announcement"] {
    grid-template-columns: 1fr 1.4fr;
  }

  .dashboard-card[data-dashboard-card="announcement"] p,
  .dashboard-card[data-dashboard-card="announcement"] .dashboard-card-links {
    grid-column: 2;
  }
}

@media (max-width: 680px) {
  .dashboard-card[data-dashboard-card="announcement"] {
    display: flex;
    min-height: 250px;
    padding: 1.45rem;
  }

  .dashboard-card[data-dashboard-card="announcement"] .dashboard-card-topline {
    display: flex;
  }

  .dashboard-card[data-dashboard-card="announcement"] .dashboard-card-date {
    margin-top: 0;
    text-align: right;
  }

  .dashboard-card[data-dashboard-card="announcement"] h3,
  .dashboard-card[data-dashboard-card="announcement"] p {
    margin-top: 0.75rem;
  }

  .dashboard-card[data-dashboard-card="announcement"] .dashboard-card-links {
    margin-top: auto;
  }
}

/* ========================================================================== 
   Version 2.1: simplified student navigation
   ========================================================================== */

.dashboard-hero-simple {
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  min-height: 380px;
  margin-bottom: 3.5rem;
}

.dashboard-hero-simple .dashboard-hero-copy {
  padding: clamp(2.4rem, 4.5vw, 4rem);
}

.dashboard-hero-simple h1 {
  font-size: clamp(3rem, 5.7vw, 5.25rem);
}

.dashboard-hero-art-simple {
  padding: 1.5rem 2rem;
}

.dashboard-hero-art-simple img {
  width: min(95%, 460px);
}

.hero-facts-simple {
  margin-top: 1.55rem;
}

.dashboard-section-compact {
  margin-bottom: 3.6rem;
}

.priority-list {
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.priority-item {
  display: grid;
  grid-template-columns: 185px minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.35rem;
  min-height: 100px;
  padding: 1.15rem 1.35rem;
  border-top: 1px solid var(--course-line);
}

.priority-item:first-child {
  border-top: 0;
}

.priority-item:hover {
  background: color-mix(in srgb, var(--course-gold) 5%, var(--course-paper));
}

.priority-meta span,
.priority-meta small {
  display: block;
}

.priority-meta span {
  color: var(--course-burgundy);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.priority-meta small {
  margin-top: 0.3rem;
  color: var(--course-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.priority-content h3 {
  margin: 0;
  font-size: 1.2rem;
}

.priority-content p {
  margin: 0.3rem 0 0;
  color: var(--course-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.priority-links {
  display: flex;
  justify-content: flex-end;
}

.resource-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.resource-panel {
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.resource-panel-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.3rem 1.05rem;
  border-bottom: 1px solid var(--course-line);
}

.resource-panel-heading span {
  color: var(--course-muted);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.resource-panel-heading h3 {
  margin: 0.18rem 0 0;
  font-size: 1.55rem;
}

.resource-panel-heading a {
  flex: 0 0 auto;
  color: var(--course-muted);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
}

.resource-panel-heading a:hover {
  color: var(--course-burgundy);
}

.resource-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto 20px;
  align-items: center;
  gap: 0.85rem;
  min-height: 94px;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--course-line);
  color: var(--course-ink);
  text-decoration: none;
}

.resource-item:first-child {
  border-top: 0;
}

.resource-item:hover {
  background: color-mix(in srgb, var(--course-gold) 5%, var(--course-paper));
  color: var(--course-ink);
}

.resource-number {
  color: var(--course-gold);
  font-family: var(--course-serif);
  font-size: 1.05rem;
  font-weight: 700;
}

.resource-copy strong,
.resource-copy small {
  display: block;
}

.resource-copy strong {
  font-family: var(--course-serif);
  font-size: 1.05rem;
}

.resource-copy small {
  margin-top: 0.2rem;
  color: var(--course-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.resource-arrow {
  color: var(--course-muted);
  font-size: 1.05rem;
  transition: transform 150ms ease;
}

.resource-item:hover .resource-arrow {
  transform: translateX(3px);
  color: var(--course-burgundy);
}

.lectures-preview .class-log-entry {
  padding-block: 1.25rem;
}

.lectures-preview .class-log-content p {
  margin-bottom: 0.55rem;
}

.course-utility-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 1.5rem;
  border: 1px solid var(--course-line);
  border-radius: 16px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.course-utility-links a {
  display: block;
  min-height: 92px;
  padding: 1.15rem 1.25rem;
  border-left: 1px solid var(--course-line);
  color: var(--course-ink);
  text-decoration: none;
}

.course-utility-links a:first-child {
  border-left: 0;
}

.course-utility-links a:hover {
  background: color-mix(in srgb, var(--course-gold) 5%, var(--course-paper));
}

.course-utility-links span,
.course-utility-links small {
  display: block;
}

.course-utility-links span {
  font-family: var(--course-serif);
  font-size: 1.05rem;
  font-weight: 700;
}

.course-utility-links small {
  margin-top: 0.25rem;
  color: var(--course-muted);
  font-size: 0.78rem;
}

@media (max-width: 900px) {
  .dashboard-hero-simple {
    grid-template-columns: 1fr;
  }

  .resource-columns {
    grid-template-columns: 1fr;
  }

  .priority-item {
    grid-template-columns: 145px minmax(0, 1fr);
  }

  .priority-links {
    grid-column: 2;
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .dashboard-hero-simple {
    min-height: auto;
  }

  .priority-item {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .priority-links {
    grid-column: 1;
  }

  .resource-item {
    grid-template-columns: 42px minmax(0, 1fr) auto;
  }

  .resource-item .status-badge {
    grid-column: 2;
    justify-self: start;
  }

  .resource-arrow {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .course-utility-links {
    grid-template-columns: 1fr;
  }

  .course-utility-links a {
    min-height: auto;
    border-top: 1px solid var(--course-line);
    border-left: 0;
  }

  .course-utility-links a:first-child {
    border-top: 0;
  }
}

/* ========================================================================== 
   Version 2.3: refined course header
   ========================================================================== */

.course-header-hero {
  position: relative;
  max-width: 1260px;
  margin: 2rem auto 4rem;
  padding: clamp(2.5rem, 5vw, 4.5rem);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 12%, rgba(223, 185, 110, 0.2), transparent 28%),
    linear-gradient(135deg, #102036 0%, var(--course-navy) 60%, #203b56 100%);
  color: #fff8ea;
  box-shadow: 0 30px 85px rgba(11, 24, 40, 0.22);
  overflow: hidden;
}

.course-header-hero::before {
  position: absolute;
  top: -18%;
  right: -3%;
  width: min(46%, 520px);
  height: 125%;
  background: url("number-constellation.svg") center / contain no-repeat;
  opacity: 0.13;
  content: "";
  pointer-events: none;
}

.course-header-title,
.course-header-facts {
  position: relative;
  z-index: 1;
}

.course-header-title {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}

.course-heading-block {
  min-width: 0;
}

.course-header-title h1 {
  max-width: 800px;
  margin: 0;
  color: #fffaf0;
  font-size: clamp(3.5rem, 7vw, 6.4rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.course-header-quote {
  position: relative;
  max-width: 430px;
  margin: 0 0 0.35rem;
  padding: 0.25rem 0 0.35rem 1.45rem;
  border-left: 2px solid rgba(223, 185, 110, 0.72);
}

.course-header-quote blockquote {
  margin: 0;
  padding: 0;
  border: 0;
  color: rgba(255, 248, 234, 0.93);
  font-family: var(--course-serif);
  font-size: clamp(1.15rem, 1.8vw, 1.48rem);
  font-style: italic;
  line-height: 1.48;
}

.course-header-quote figcaption {
  margin-top: 0.75rem;
  color: #dfb96e;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-header-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(2.4rem, 5vw, 4.2rem);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.header-fact {
  min-height: 148px;
  padding: 1.5rem 2rem 0 0;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.header-fact + .header-fact {
  padding-left: 2rem;
}

.header-fact:last-child {
  border-right: 0;
}

.header-fact > span {
  display: block;
  margin-bottom: 0.55rem;
  color: #dfb96e;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-fact strong,
.header-fact-detail,
.header-fact a {
  display: block;
  color: #fff8ea;
}

.header-fact strong,
.header-fact-detail {
  font-family: var(--course-serif);
  line-height: 1.34;
}

.header-fact strong {
  font-size: clamp(1.08rem, 1.28vw, 1.24rem);
  font-weight: 700;
}

.header-fact-detail {
  margin-top: 0.42rem;
  color: rgba(255, 248, 234, 0.82);
  font-size: clamp(0.96rem, 1.08vw, 1.08rem);
  font-weight: 550;
}

.header-fact a {
  color: inherit;
  overflow-wrap: anywhere;
  text-decoration-color: rgba(255, 248, 234, 0.4);
  text-underline-offset: 0.16em;
}

.syllabus-home .dashboard-section {
  margin-bottom: 4.4rem;
}

.summary-card,
.textbook-card,
.policy-card,
.grading-card,
.accommodations-grid {
  border: 1px solid var(--course-line);
  border-radius: 20px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
}

.summary-card {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(250px, 0.65fr);
  gap: 2.4rem;
  align-items: center;
  padding: clamp(1.7rem, 4vw, 2.8rem);
}

.summary-copy p {
  margin: 0 0 1rem;
  color: var(--course-ink);
  font-family: var(--course-serif);
  font-size: 1.13rem;
  line-height: 1.72;
}

.summary-copy p:last-child {
  margin-bottom: 0;
}

.summary-action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0;
  border: 0;
  background: transparent;
}

.summary-action .course-button {
  width: auto;
  min-width: 220px;
  justify-content: center;
}

.textbook-card {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(1.8rem, 4vw, 3.1rem);
  align-items: center;
  padding: clamp(1.6rem, 4vw, 2.7rem);
}

.textbook-cover {
  display: block;
  width: 100%;
  max-width: 230px;
  aspect-ratio: 0.706;
  object-fit: cover;
  border: 1px solid rgba(21, 38, 61, 0.14);
  border-radius: 8px 14px 14px 8px;
  background: #4f347d;
  box-shadow: 12px 18px 32px rgba(21, 38, 61, 0.22);
}

.textbook-label {
  color: var(--course-burgundy);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.textbook-copy h3 {
  margin: 0.35rem 0 0.15rem;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.textbook-author {
  margin: 0 0 1rem;
  color: var(--course-muted);
  font-weight: 700;
}

.textbook-copy .course-button {
  margin-top: 0.5rem;
}

.lecture-list,
.assignment-list-home {
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
  overflow: hidden;
}

.lecture-entry {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
  min-height: 122px;
  padding: 1.25rem 1.45rem;
  border-top: 1px solid var(--course-line);
}

.lecture-entry:first-child {
  border-top: 0;
}

.lecture-entry:hover,
.assignment-row:hover {
  background: color-mix(in srgb, var(--course-gold) 5%, var(--course-paper));
}

.lecture-date strong,
.lecture-date span {
  display: block;
}

.lecture-date strong {
  color: var(--course-ink);
  font-family: var(--course-serif);
  font-size: 1.03rem;
}

.lecture-date span {
  margin-top: 0.2rem;
  color: var(--course-muted);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lecture-copy h3,
.assignment-copy h3 {
  margin: 0;
  font-size: 1.18rem;
}

.lecture-copy p,
.assignment-copy p {
  margin: 0.35rem 0 0;
  color: var(--course-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.lecture-links,
.assignment-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
}

.policy-card {
  margin-bottom: 1rem;
  padding: 1.35rem 1.5rem;
}

.policy-card p {
  margin: 0 0 0.75rem;
  color: var(--course-muted);
}

.policy-card p:last-child {
  margin-bottom: 0;
}

.assignment-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
  min-height: 116px;
  padding: 1.2rem 1.4rem;
  border-top: 1px solid var(--course-line);
}

.assignment-row:first-child {
  border-top: 0;
}

.assignment-id strong,
.assignment-id span {
  display: block;
}

.assignment-id strong {
  color: var(--course-burgundy);
  font-family: var(--course-serif);
  font-size: 1.1rem;
}

.assignment-id span {
  margin-top: 0.25rem;
  color: var(--course-muted);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.35;
}

.exam-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.exam-card {
  min-height: 245px;
  padding: 1.45rem;
  border: 1px solid var(--course-line);
  border-radius: 18px;
  background: var(--course-paper);
  box-shadow: var(--course-shadow-soft);
}

.exam-card-topline {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.8rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--course-line);
}

.exam-card h3 {
  margin: 0;
  font-size: 1.45rem;
}

.exam-note {
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--course-gold) 15%, var(--course-paper));
  color: var(--course-burgundy);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.exam-card dl {
  margin: 0.9rem 0 0;
}

.exam-card dl > div {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 0.7rem;
  padding: 0.55rem 0;
}

.exam-card dt {
  color: var(--course-muted);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.exam-card dd {
  margin: 0;
  color: var(--course-ink);
  font-weight: 650;
}

.grading-card {
  padding: 1.45rem;
}

.grading-card > p {
  margin: 0 0 1rem;
  color: var(--course-muted);
}

.grading-list {
  border-top: 1px solid var(--course-line);
}

.grading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 82px;
  padding: 0.9rem 0.3rem;
  border-bottom: 1px solid var(--course-line);
}

.grading-row:last-child {
  border-bottom: 0;
}

.grading-row strong,
.grading-row span {
  display: block;
}

.grading-row strong {
  font-family: var(--course-serif);
  font-size: 1.08rem;
}

.grading-row span {
  margin-top: 0.2rem;
  color: var(--course-muted);
  font-size: 0.82rem;
}

.grading-row b {
  flex: 0 0 auto;
  color: var(--course-burgundy);
  font-family: var(--course-serif);
  font-size: 1.55rem;
}

.accommodations-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  overflow: hidden;
}

.accommodations-copy,
.university-resources {
  padding: clamp(1.5rem, 4vw, 2.4rem);
}

.accommodations-copy {
  border-right: 1px solid var(--course-line);
  background: color-mix(in srgb, var(--course-navy) 5%, var(--course-paper));
}

.accommodations-grid h3 {
  margin: 0 0 0.8rem;
  font-size: 1.45rem;
}

.accommodations-copy p {
  margin: 0;
  color: var(--course-muted);
}

.university-resource {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
  padding: 0.8rem 0;
  border-top: 1px solid var(--course-line);
  color: var(--course-ink);
  text-decoration: none;
}

.university-resource:first-child {
  border-top: 0;
}

.university-resource strong,
.university-resource small {
  display: block;
}

.university-resource strong {
  font-family: var(--course-serif);
  font-size: 1.02rem;
}

.university-resource small {
  margin-top: 0.15rem;
  color: var(--course-muted);
  font-size: 0.78rem;
}

.university-resource b {
  color: var(--course-muted);
  transition: transform 150ms ease;
}

.university-resource:hover b {
  color: var(--course-burgundy);
  transform: translateX(3px);
}

.course-disclaimer {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  width: 100%;
  max-width: none;
  min-height: 0;
  margin: -1.1rem 0 1.5rem;
  padding: 1.15rem 1.4rem;
  border: 1px solid color-mix(in srgb, var(--course-gold) 42%, var(--course-line));
  border-radius: 15px;
  background: color-mix(in srgb, var(--course-gold) 8%, var(--course-paper));
  box-sizing: border-box;
}

.course-disclaimer strong {
  flex: 0 0 auto;
  color: var(--course-burgundy);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.course-disclaimer p {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  color: var(--course-muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .course-header-title {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .course-header-quote {
    max-width: 620px;
    margin-bottom: 0;
  }

  .course-header-facts,
  .exam-grid {
    grid-template-columns: 1fr;
  }

  .header-fact,
  .header-fact + .header-fact {
    min-height: auto;
    padding: 1.25rem 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .header-fact:last-child {
    border-bottom: 0;
  }

  .summary-card,
  .textbook-card,
  .accommodations-grid {
    grid-template-columns: 1fr;
  }

  .summary-action {
    justify-content: flex-start;
    padding-top: 0.15rem;
  }

  .textbook-cover {
    width: 210px;
  }

  .accommodations-copy {
    border-right: 0;
    border-bottom: 1px solid var(--course-line);
  }

  .lecture-entry,
  .assignment-row {
    grid-template-columns: 135px minmax(0, 1fr);
  }

  .lecture-links,
  .assignment-actions {
    grid-column: 2;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .course-header-hero {
    margin-top: 1rem;
    padding: 2.2rem 1.35rem;
    border-radius: 22px;
  }

  .course-header-title h1 {
    font-size: clamp(3rem, 16vw, 4.7rem);
  }

  .course-header-quote {
    padding-left: 1.05rem;
  }

  .course-header-quote blockquote {
    font-size: 1.08rem;
  }

  .course-header-hero::before {
    width: 78%;
    opacity: 0.09;
  }

  .summary-card,
  .textbook-card,
  .policy-card,
  .grading-card,
  .accommodations-copy,
  .university-resources {
    padding: 1.25rem;
  }

  .textbook-cover {
    width: 180px;
  }

  .lecture-entry,
  .assignment-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .lecture-links,
  .assignment-actions {
    grid-column: 1;
    justify-content: flex-start;
  }

  .assignment-actions {
    flex-wrap: wrap;
  }

  .course-disclaimer {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }
}

@media print {
  .course-header-hero,
  .summary-card,
  .textbook-card,
  .lecture-list,
  .assignment-list-home,
  .policy-card,
  .exam-card,
  .grading-card,
  .accommodations-grid,
  .course-disclaimer {
    box-shadow: none !important;
    break-inside: avoid;
  }
}

/* ========================================================================== 
   Version 2.6.4: robust full-width single-column homepage flow
   ========================================================================== */

/* The homepage is a vertical syllabus, never a multi-column Quarto article. */
.syllabus-home {
  display: block;
  width: 100%;
}

.syllabus-home > .dashboard-section,
.syllabus-home > .course-disclaimer {
  width: 100%;
  max-width: none;
  grid-column: 1 / -1;
  clear: both;
}

/* Keep the final disclaimer below the Resources section in every layout. */
.syllabus-home > .course-disclaimer {
  display: grid;
  margin-top: 0;
}

/* Ensure full-layout pages are not constrained to Quarto's article body width. */
body.quarto-light #quarto-document-content,
body.quarto-dark #quarto-document-content,
#quarto-document-content {
  width: 100%;
  max-width: none;
}

/* Version 2.6.8: align exam labels and values consistently. */
.exam-card {
  display: grid;
  grid-template-rows: auto 1fr;
}

.exam-card-topline {
  min-height: 4.25rem;
  align-items: center;
}

.exam-card dl {
  display: grid;
  grid-template-rows: repeat(3, minmax(2.8rem, auto));
  align-content: start;
}

.exam-card dl > div {
  grid-template-columns: 5.75rem minmax(0, 1fr);
  align-items: baseline;
  column-gap: 1rem;
  min-height: 2.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--course-line) 72%, transparent);
}

.exam-card dl > div:last-child {
  border-bottom: 0;
}

.exam-card dt,
.exam-card dd {
  line-height: 1.35;
}

.exam-card dd {
  align-self: baseline;
  justify-self: start;
}

@media (max-width: 520px) {
  .exam-card dl > div {
    grid-template-columns: 4.9rem minmax(0, 1fr);
    column-gap: 0.75rem;
  }
}

/* Problem-set action buttons: print, solutions, and navigation. */
.assignment-page-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0 2rem;
}

.assignment-page-actions p {
  display: contents;
}

.solution-button {
  background: var(--course-burgundy);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--course-burgundy) 24%, transparent);
}

.solution-button:hover,
.solution-button:focus {
  background: var(--course-navy);
}

@media print {
  .assignment-page-actions {
    display: none !important;
  }
}


/* Version 2.6.10: optional exam solutions buttons on the homepage. */
.exam-card {
  grid-template-rows: auto 1fr auto;
}

.exam-card-actions {
  display: flex;
  align-items: center;
  padding-top: 0.9rem;
  border-top: 1px solid color-mix(in srgb, var(--course-line) 72%, transparent);
}

.exam-solutions-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 42px;
  padding: 0.62rem 1rem;
  border: 1px solid var(--course-navy);
  border-radius: 999px;
  background: var(--course-navy);
  color: #fff8ea !important;
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration: none !important;
  box-shadow: 0 10px 22px color-mix(in srgb, var(--course-navy) 18%, transparent);
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.exam-solutions-link:hover,
.exam-solutions-link:focus-visible {
  border-color: var(--course-burgundy);
  background: var(--course-burgundy);
  color: #fff8ea !important;
  transform: translateY(-1px);
}

/* ========================================================================== 
   Version 2.6.12: visible lecture topic tags
   ========================================================================== */

.lecture-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.38rem;
  margin-top: 0.68rem;
}

.lecture-topic {
  display: inline-flex;
  align-items: center;
  min-height: 1.55rem;
  padding: 0.16rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--course-burgundy) 18%, var(--course-line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--course-burgundy) 4%, var(--course-paper));
  color: var(--course-muted);
  font-size: 0.75rem;
  font-weight: 650;
  line-height: 1.25;
}

@media (max-width: 640px) {
  .lecture-topics {
    margin-top: 0.58rem;
  }

  .lecture-topic {
    font-size: 0.73rem;
  }
}