:root {
  --course-teal: #176b62;
  --course-teal-dark: #0f504a;
  --course-orange: #b6522c;
  --course-maroon: #7a1f3d;
  --course-ink: #17211f;
  --course-muted: #5c6865;
  --course-border: #dbe3e1;
  --course-surface: #f6f8f7;
  --course-white: #fff;
}

html {
  scroll-padding-top: 5.5rem;
}

body {
  color: var(--course-ink);
  background: var(--course-white);
}

.navbar {
  box-shadow: 0 2px 12px rgba(15, 80, 74, 0.18);
}

.navbar-brand,
.navbar-nav .nav-link {
  font-weight: 650;
}

.navbar-nav .nav-link.active {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

main.content {
  max-width: 1180px;
  margin-inline: auto;
}

.quarto-title-block {
  display: none;
}

.course-header {
  margin: 2rem 0 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--course-border);
}

.course-header h1 {
  margin: 0;
  color: var(--course-teal-dark);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.035em;
}

.course-info a,
.syllabus-header a {
  color: var(--course-teal-dark);
  font-weight: 700;
}

.course-description {
  margin: 1.25rem 0 0;
  color: var(--course-muted);
  line-height: 1.65;
}

.course-info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 850px;
  margin: 0;
  border-top: 1px solid var(--course-border);
}

.course-info > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--course-border);
}

.course-info dt {
  color: var(--course-muted);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.course-info dd {
  margin: 0;
  font-weight: 650;
}

.syllabus-page {
  max-width: 860px;
  margin: 2rem auto 4rem;
  line-height: 1.65;
}

.syllabus-header {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--course-border);
}

.syllabus-header h1 {
  margin: 0 0 0.35rem;
  color: var(--course-teal-dark);
  font-size: clamp(2.1rem, 5vw, 3.25rem);
  letter-spacing: -0.035em;
}

.syllabus-page h2 {
  margin-top: 2.6rem;
  color: var(--course-teal-dark);
}

.syllabus-page h3 {
  margin-top: 1.8rem;
}

.syllabus-page table {
  width: 100%;
  margin: 1rem 0 1.5rem;
}

.syllabus-page th,
.syllabus-page td {
  padding: 0.55rem 0.7rem;
  vertical-align: top;
}

.schedule-table {
  margin: 1rem 0 2.5rem;
  overflow-x: auto;
  border-top: 1px solid var(--course-border);
  border-bottom: 1px solid var(--course-border);
}

.schedule-table table {
  width: 100%;
  min-width: 820px;
  margin: 0;
}

.schedule-table thead th {
  padding: 0.75rem 0.9rem;
  color: #fff;
  background: var(--course-teal-dark);
  border-bottom: 0;
}

.schedule-table col:nth-child(1) {
  width: 1% !important;
}

.schedule-table col:nth-child(2) {
  width: 17% !important;
}

.schedule-table col:nth-child(3) {
  width: auto !important;
}

.schedule-table col:nth-child(4) {
  width: 20% !important;
}

.schedule-table thead th:first-child {
  white-space: nowrap;
}

.schedule-table tbody td:first-child {
  color: var(--course-teal-dark);
  white-space: nowrap;
  font-weight: 750;
}

.schedule-table tbody td:nth-child(3) {
  color: var(--course-teal-dark);
  font-weight: 650;
}

.schedule-table .no-class {
  color: var(--course-ink);
  font-style: normal;
  font-weight: 400;
}

.schedule-table .major-deliverable {
  color: var(--course-maroon);
  font-weight: 800;
}

.schedule-table tbody td {
  padding: 0.7rem 0.9rem;
  vertical-align: top;
  border-color: var(--course-border);
}

.schedule-table tbody tr:nth-child(even) td {
  background: var(--course-surface);
}

.module-panel {
  margin: 1rem 0 2.5rem;
  border-top: 1px solid var(--course-border);
  border-bottom: 1px solid var(--course-border);
  background: #fff;
}

.module-list {
  margin: 1rem 0 2.5rem;
  border-top: 1px solid var(--course-border);
}

.module-list .module-panel {
  margin: 0;
  border-top: 0;
}

.module-panel > summary {
  position: relative;
  padding: 0.9rem 2rem 0.9rem 0;
  color: var(--course-teal-dark);
  cursor: pointer;
  list-style: none;
  font-size: 1.12rem;
  font-weight: 800;
}

.module-panel > summary::-webkit-details-marker,
.resource-section > summary::-webkit-details-marker {
  display: none;
}

.module-panel > summary::after {
  position: absolute;
  top: 50%;
  right: 0.25rem;
  content: "+";
  font-size: 1.25rem;
  font-weight: 500;
  transform: translateY(-52%);
}

.module-panel[open] > summary {
  border-bottom: 1px solid var(--course-border);
}

.module-panel[open] > summary::after {
  content: "−";
}

.module-body {
  padding: 0.85rem 0 1.25rem;
}

.module-focus {
  margin: 0.1rem 0 1rem;
  color: var(--course-muted);
}

.resource-sections {
  border-top: 1px solid var(--course-border);
}

.resource-section {
  border-bottom: 1px solid var(--course-border);
}

.resource-section > summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 2rem 0.7rem 0;
  cursor: pointer;
  list-style: none;
  font-weight: 750;
}

.resource-section > summary span {
  margin-left: auto;
  color: var(--course-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.resource-section > summary::after {
  position: absolute;
  right: 0.25rem;
  content: "+";
  color: var(--course-muted);
  font-size: 1.05rem;
}

.resource-section[open] > summary {
  color: var(--course-teal-dark);
}

.resource-section[open] > summary::after {
  content: "−";
}

.resource-list {
  margin: 0 0 0.8rem;
  padding-left: 1.25rem;
  color: var(--course-muted);
}

.resource-list li {
  padding: 0.15rem 0;
  line-height: 1.45;
}

.resource-list li + li {
  margin-top: 0.2rem;
}

.resource-list a {
  font-weight: 700;
}

.course-extension {
  margin-top: 1rem;
  padding: 0.15rem 0 0.15rem 0.9rem;
  border-left: 3px solid var(--course-teal);
}

.course-extension--475 {
  border-left-color: var(--course-orange);
}

.course-extension p {
  margin: 0;
  line-height: 1.5;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--course-orange);
  outline-offset: 3px;
}

@media (max-width: 680px) {
  main.content.column-page {
    width: auto;
    max-width: none;
    margin-inline: 1rem;
    grid-column: screen-start / screen-end;
  }

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

  .course-header {
    margin-top: 1.25rem;
  }

  .course-info > div {
    grid-template-columns: 7rem 1fr;
  }

  .module-body {
    padding: 0.75rem 0 1rem;
  }
}

@media print {
  .navbar,
  .nav-footer {
    display: none !important;
  }
}