:root {
  --ink: #0d1b2a;
  --muted: #6b7280;
  --paper: #ffffff;
  --surface: #e6f2f2;
  --accent: #1ca3a3;
  --accent-dark: #137f82;
  --coral: #ff6b6b;
  --line: #d8e5e6;
  --shadow: rgb(13 27 42 / 6%);
  --max-width: 72rem;
  --text-2xs: .6875rem;
  --text-xs: .75rem;
  --text-sm: .875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: clamp(1.25rem, 2.5vw, 1.6rem);
  --text-xl: clamp(1.5rem, 3vw, 2rem);
  --text-2xl: clamp(2rem, 4vw, 3.2rem);
  --text-3xl: clamp(2.6rem, 5vw, 4.2rem);
  --text-display: clamp(2.8rem, 6.5vw, 5rem);
}

[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e6f2f2;
  --muted: #aeb8c6;
  --paper: #0d1b2a;
  --surface: #13283b;
  --accent: #35b8b5;
  --accent-dark: #78d4d2;
  --line: #294154;
  --shadow: rgb(0 0 0 / 24%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: var(--text-base);
  line-height: 1.65;
}

a { color: inherit; }

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 10;
  padding: .75rem 1rem;
  color: white;
  background: var(--ink);
  transform: translateY(-120%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
}

.header-inner,
.footer-inner,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.header-inner { min-height: 5rem; }

.site-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site-brand img {
  display: block;
  width: clamp(8.25rem, 13vw, 9.5rem);
  height: auto;
}

.site-brand .site-logo--dark { display: none; }

[data-theme="dark"] .site-brand .site-logo--light { display: none; }
[data-theme="dark"] .site-brand .site-logo--dark { display: block; }

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
}

.site-nav {
  display: flex;
  gap: clamp(.9rem, 3vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  padding-block: .35rem;
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 2px solid var(--accent);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .45rem .65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
}

.theme-toggle:hover { border-color: var(--accent); }

.theme-toggle:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 2px;
}

.theme-icon {
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.theme-icon--moon,
[data-theme="dark"] .theme-icon--sun { display: none; }

[data-theme="dark"] .theme-icon--moon { display: block; }

.course-shell {
  display: grid;
  grid-template-columns: minmax(13rem, 15rem) minmax(0, 1fr);
  align-items: start;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.course-main { min-width: 0; }

.course-sidebar {
  position: sticky;
  top: 1rem;
  z-index: 2;
  margin-top: 2rem;
}

.course-sidebar-disclosure {
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--paper);
  box-shadow: 0 .65rem 2rem var(--shadow);
}

.course-sidebar-disclosure > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  list-style: none;
  font-family: Poppins, Inter, sans-serif;
  font-weight: 750;
  cursor: pointer;
}

.course-sidebar-disclosure > summary::-webkit-details-marker { display: none; }

.course-sidebar-disclosure[open] > summary span { transform: rotate(180deg); }

.course-sidebar nav {
  padding: 0 .75rem .85rem;
  border-top: 1px solid var(--line);
}

.course-sidebar ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-sidebar-nav > li { border-bottom: 1px solid var(--line); }
.course-sidebar-nav > li:last-child { border-bottom: 0; }

.course-sidebar a {
  display: block;
  padding: .65rem .5rem;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none;
}

.course-sidebar a:hover,
.course-sidebar a[aria-current] {
  color: var(--ink);
  background: var(--surface);
}

.course-sidebar a[aria-current] { border-left: .2rem solid var(--accent); }

.course-sidebar-units { padding-left: .65rem !important; }
.course-sidebar-classes { padding-left: .75rem !important; }
.course-sidebar-units a { color: var(--ink); font-size: var(--text-sm); }
.course-sidebar-classes a { color: var(--muted); font-size: var(--text-xs); font-weight: 600; }

.hero {
  padding: clamp(4.5rem, 10vw, 7rem) 0;
  color: white;
  background:
    radial-gradient(circle at 82% 30%, rgb(28 163 163 / 22%), transparent 23rem),
    linear-gradient(135deg, #0d1b2a, #0b2a46);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, .85fr);
  align-items: center;
  gap: clamp(2rem, 8vw, 7rem);
}

.hero-content { max-width: 42rem; }

.hero h1,
.page-header h1 {
  max-width: 15ch;
  margin: .3rem 0 1.25rem;
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-display);
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: -.04em;
}

.page-header h1 {
  max-width: 22ch;
  font-size: var(--text-3xl);
  line-height: 1.08;
}

.hero-summary,
.page-header > p:last-child {
  max-width: 43rem;
  color: var(--muted);
  font-size: var(--text-md);
}

.hero .hero-summary { color: #e6f2f2; }

.hero-illustration svg {
  width: 100%;
  overflow: visible;
  fill: none;
  stroke: #e6f2f2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 5;
}

.hero-illustration .accent-stroke { stroke: var(--accent); }

.eyebrow,
.course-code {
  margin: 0 0 .35rem;
  color: var(--accent-dark);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero .eyebrow { color: #78d4d2; }

.button {
  display: inline-block;
  margin-top: 1.1rem;
  padding: .8rem 1.2rem;
  border-radius: .35rem;
  color: white;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  font-weight: 750;
  text-decoration: none;
}

.button:hover { background: var(--accent-dark); }

.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }

.section-tinted { background: var(--surface); }

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 7vw, 7rem);
}

h2 {
  margin: .2rem 0 1rem;
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-2xl);
  line-height: 1.12;
}

.section-heading { margin-bottom: 2rem; }

.text-link,
.card-link {
  color: var(--accent-dark);
  font-weight: 750;
  text-underline-offset: .2em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1.25rem;
}

.course-card {
  display: flex;
  min-height: 17rem;
  flex-direction: column;
  padding: clamp(1.4rem, 4vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--paper);
  box-shadow: 0 .65rem 2rem var(--shadow);
}

.course-card h2,
.course-card h3 {
  margin: .6rem 0;
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-lg);
  line-height: 1.2;
}

.course-card h2 a,
.course-card h3 a { text-decoration: none; }

.course-card h2 a:hover,
.course-card h3 a:hover { color: var(--accent-dark); }

.course-card p:not(.course-code) { color: var(--muted); }

.course-card p.career-tag,
.page-header > p.career-tag,
.career-tag {
  display: inline-block;
  width: fit-content;
  margin: .5rem 0 1rem;
  padding: .35rem .65rem;
  border-radius: 999px;
  color: #fff7f5;
  background: var(--coral);
  font-size: var(--text-sm);
  font-weight: 750;
  line-height: 1.35;
}

.card-link { margin-top: auto; }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1.25rem;
}

.page-header.contact-page-header { padding-bottom: .5rem; }
.contact-page-header + .contact-section { padding-top: 0; }
.page-header.collection-page-header { padding-bottom: .5rem; }
.collection-page-header + .section { padding-top: 0; }

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--paper);
  box-shadow: 0 .65rem 2rem var(--shadow);
  text-decoration: none;
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.contact-card svg {
  width: 2.25rem;
  flex: 0 0 2.25rem;
  fill: none;
  stroke: var(--accent-dark);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.contact-card span { min-width: 0; }

.contact-card strong,
.contact-card small { display: block; }

.contact-card small {
  overflow-wrap: anywhere;
  color: var(--muted);
}

.course-content-outline {
  display: grid;
  gap: 2rem;
}

.page-header.content-page-header { padding-bottom: clamp(1rem, 2vw, 1.5rem); }
.content-page-header + .course-content-outline { padding-top: clamp(1.25rem, 3vw, 2rem); }

.breadcrumbs {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.breadcrumbs li + li::before {
  content: "›";
  color: var(--accent-dark);
  font-weight: 800;
}

.breadcrumbs a {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs [aria-current="page"] { color: var(--ink); }
.breadcrumbs [aria-current="page"] a { color: inherit; }

.breadcrumbs + .page-header { padding-top: clamp(1rem, 2vw, 1.5rem); }

.course-content-unit {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--surface);
}

.course-content-unit-summary {
  display: grid;
  justify-items: start;
}

.course-content-unit-summary > p:not(.eyebrow, .unit-hours) {
  margin-top: .25rem;
  color: var(--muted);
}

.course-content-unit-summary .button-link { margin-top: .75rem; }

.unit-page-content { padding-top: clamp(1.25rem, 3vw, 2rem); }

.course-overview {
  display: grid;
  gap: 1.5rem;
}

.course-overview-heading { align-items: flex-end; }
.course-overview-heading h2 { margin-bottom: 0; }

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

.course-competency {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--surface);
}

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

.course-competency h3 { margin-bottom: .35rem; font-size: var(--text-md); }
.course-competency p { margin: 0; }

.course-facts div {
  padding: 1rem;
  border-radius: .4rem;
  color: #fff;
  background: #6b7280;
}

.course-facts dt {
  margin-bottom: .35rem;
  color: #fff;
  font-family: Poppins, Inter, "Segoe UI", Arial, sans-serif;
  font-weight: 700;
}

.course-facts dd { margin: 0; }

@media (max-width: 48rem) {
  .course-competencies { grid-template-columns: 1fr; }
  .course-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 28rem) {
  .course-facts { grid-template-columns: 1fr; }
}

.unit-hours {
  margin-top: -.5rem;
  color: var(--muted);
  font-weight: 700;
}

.course-expected-learnings {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.course-expected-learning {
  padding: clamp(1rem, 3vw, 1.5rem);
  border-radius: .4rem;
  background: var(--paper);
}

.course-expected-learning h2,
.course-expected-learning h3 {
  margin-top: .25rem;
  font-size: var(--text-lg);
}

.evaluation-criteria {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  background: var(--surface);
  overflow: hidden;
}

.evaluation-criteria summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .8rem 1rem;
  cursor: pointer;
  font-family: Poppins, Inter, "Segoe UI", Arial, sans-serif;
  font-weight: 700;
  list-style: none;
}

.evaluation-criteria summary::-webkit-details-marker { display: none; }

.evaluation-criteria-action {
  color: var(--accent-dark);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.evaluation-criteria[open] .evaluation-criteria-action { font-size: 0; }
.evaluation-criteria[open] .evaluation-criteria-action::after {
  content: "Ocultar criterios ↑";
  font-size: var(--text-xs);
}

.evaluation-criteria-content {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}

.evaluation-criteria ul { margin: 1rem 0 0; padding-left: 1.25rem; }

.course-class-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  padding: 0;
  margin-top: 1.25rem;
  list-style: none;
}

.course-unit-classes {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--line);
}

.course-unit-classes h2 { margin-bottom: .35rem; }
.course-unit-classes > p { margin: 0; color: var(--muted); }

.course-class-tag {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: .4rem .9rem;
  border-radius: 999px;
  color: #fff;
  background: var(--coral);
  font-weight: 700;
  text-decoration: none;
}

.course-class-tag:hover { background: var(--accent-dark); }

.lesson-header .eyebrow { margin-bottom: .5rem; }

.lesson-content {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  line-height: 1.75;
}

.lesson-content > :first-child { margin-top: 0; }

.lesson-viewer {
  position: relative;
}

.lesson-pages {
  min-height: clamp(18rem, 48vw, 34rem);
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: .45rem;
  background: var(--paper);
}

.lesson-fullscreen-button {
  position: absolute;
  z-index: 2;
  top: .75rem;
  right: .75rem;
  display: inline-grid;
  width: 2.5rem;
  height: 2.5rem;
  padding: .55rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  color: var(--accent-dark);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  cursor: pointer;
}

.lesson-fullscreen-button:hover { background: var(--surface); }

.lesson-fullscreen-button svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.lesson-fullscreen-button.is-fullscreen svg { transform: rotate(180deg); }

.lesson-viewer:fullscreen {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  padding: clamp(1rem, 3vw, 2rem);
  color: var(--ink);
  background: var(--page);
}

.lesson-viewer:fullscreen .lesson-pages {
  min-height: 0;
  overflow: auto;
}

.lesson-viewer:fullscreen .lesson-page {
  max-width: 75rem;
  margin: 0 auto;
}

.lesson-viewer:fullscreen .lesson-viewer-controls {
  width: min(100%, 75rem);
  margin-right: auto;
  margin-left: auto;
}

.lesson-page > :first-child { margin-top: 0; }
.lesson-page > :last-child { margin-bottom: 0; }

.lesson-viewer-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.lesson-viewer-controls p {
  margin: 0;
  color: var(--muted);
  font-weight: 750;
  text-align: center;
}

.lesson-viewer-controls button {
  min-height: 2.75rem;
  padding: .55rem .9rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  color: #fff;
  background: var(--accent-dark);
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.lesson-viewer-controls button:first-child { justify-self: start; }
.lesson-viewer-controls button:last-child { justify-self: end; }

.lesson-viewer-controls button:disabled {
  opacity: .4;
  cursor: not-allowed;
}

@media (max-width: 30rem) {
  .lesson-viewer-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lesson-viewer-controls p {
    grid-column: 1 / -1;
    grid-row: 1;
  }
}

.lesson-related {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--line);
}

.lesson-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 1rem;
}

.lesson-related-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: .45rem;
  background: var(--paper);
}

.lesson-related-card h3 { margin: .25rem 0 .5rem; }
.lesson-related-card p:last-child { margin-bottom: 0; }
.lesson-related-card a { color: var(--accent-dark); font-weight: 750; }

.resource-library-heading {
  align-items: end;
  margin-bottom: 1.5rem;
}

.resource-library-heading h2,
.resource-library-heading p { margin-bottom: 0; }

.resource-library-heading > p {
  max-width: 32rem;
  color: var(--muted);
}

.resource-library {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 1rem;
}

.resource-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  align-items: end;
  gap: .75rem;
  margin-bottom: .75rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: var(--surface);
}

.resource-filters label {
  display: grid;
  gap: .35rem;
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 750;
}

.resource-filters select,
.resource-filters button {
  min-height: 2.65rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  color: var(--ink);
  background: var(--paper);
  font: inherit;
}

.resource-filters select { width: 100%; padding: .45rem .65rem; }

.resource-filters button {
  padding: .45rem .8rem;
  color: var(--accent-dark);
  font-weight: 750;
  cursor: pointer;
}

.resource-filter-status {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: var(--text-sm);
}

.resource-filter-empty {
  padding: 1.25rem;
  border: 1px dashed var(--line);
  border-radius: .45rem;
  color: var(--muted);
  background: var(--surface);
}

.resource-library-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(1rem, 3vw, 1.4rem);
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: var(--surface);
}

.resource-library-card h3 { margin: .25rem 0 .5rem; }
.resource-library-card > p:not(.eyebrow, .resource-context) { color: var(--muted); }

.resource-format {
  display: inline-flex;
  margin: .25rem 0 0;
  padding: .2rem .55rem;
  border-radius: 999px;
  color: var(--ink) !important;
  background: color-mix(in srgb, var(--accent) 12%, var(--paper));
  font-size: var(--text-xs);
  font-weight: 750;
}

.resource-context {
  margin-top: auto;
  margin-bottom: 0;
  padding-top: 1rem;
  color: var(--accent-dark);
  font-size: var(--text-sm);
  font-weight: 750;
}

.resource-action {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: 1rem;
  color: var(--accent-dark);
  font-weight: 750;
}

.resource-library-empty {
  padding: 1.25rem;
  border: 1px dashed var(--line);
  border-radius: .45rem;
  color: var(--muted);
  background: var(--surface);
}

@media (max-width: 42rem) {
  .resource-library-heading { align-items: start; }
  .resource-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-filters button { grid-column: 1 / -1; }
}

@media (max-width: 26rem) {
  .resource-filters { grid-template-columns: 1fr; }
  .resource-filters button { grid-column: auto; }
}

.course-content-classes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 1rem;
}

.course-content-class {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  background: var(--paper);
}

.course-content-class h3 { margin-top: 0; }
.course-content-class p { margin-bottom: 0; color: var(--muted); }
.course-content-class a {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--accent-dark);
  font-weight: 750;
}

.activity-relation-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.course-content-class .activity-relation-tag {
  margin-top: 0;
  padding: .3rem .7rem;
  border-radius: 999px;
  color: #fff7f5;
  background: var(--coral);
  font-size: var(--text-xs);
  line-height: 1.35;
  text-decoration: none;
}

.course-content-class .activity-relation-tag:hover {
  background: var(--accent-dark);
}

.activity-header .eyebrow { margin-bottom: .5rem; }

.activity-content {
  line-height: 1.75;
}

.activity-content > :first-child { margin-top: 0; }

.activity-content > h2 {
  font-size: var(--text-lg);
}

.source-note {
  color: var(--muted);
  font-size: var(--text-sm);
}

.edition-calendar-content { padding-top: 0; }

.edition-planning { min-width: 0; }

.edition-date-range {
  margin: -.35rem 0 1.5rem;
  color: var(--muted);
  font-weight: 700;
}

.planning-calendar {
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--surface);
}

.planning-calendar-toolbar,
.planning-navigation,
.planning-view-toggle {
  display: flex;
  align-items: center;
}

.planning-calendar-toolbar {
  justify-content: space-between;
  gap: 1rem;
}

.planning-view-toggle,
.planning-navigation {
  gap: .5rem;
}

.planning-view-toggle {
  padding: .2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
}

.planning-view-toggle button,
.planning-navigation button {
  border: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.planning-view-toggle button {
  padding: .4rem .75rem;
  border-radius: 999px;
}

.planning-view-toggle button[aria-pressed="true"] {
  color: var(--paper);
  background: var(--accent-dark);
}

.planning-navigation button {
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
}

.planning-navigation button:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.planning-period-label {
  min-width: 9rem;
  margin: 0;
  font-weight: 750;
  text-align: center;
  text-transform: capitalize;
}

.planning-example-note {
  margin: 1rem 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.planning-grid-wrapper {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: .45rem;
  background: var(--paper);
}

.planning-grid-wrapper:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 3px;
}

.planning-calendar-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(6.5rem, 1fr));
  min-width: 42rem;
}

.planning-grid-day {
  min-height: 10rem;
  padding: .55rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.planning-calendar-grid[data-view="week"] .planning-grid-day { min-height: 15rem; }

.planning-grid-day:nth-child(6n) { border-right: 0; }

.planning-grid-day--outside,
.planning-grid-day--inactive {
  background: color-mix(in srgb, var(--muted) 8%, transparent);
  opacity: .65;
}

.planning-grid-day--empty {
  background: color-mix(in srgb, var(--muted) 5%, transparent);
}

.planning-grid-day-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .55rem;
  color: var(--muted);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.planning-grid-day-heading strong {
  color: var(--ink);
  font-size: var(--text-sm);
}

.planning-grid-event {
  display: grid;
  gap: .1rem;
  margin-top: .45rem;
  padding: .45rem;
  border-left: .2rem solid var(--accent);
  border-radius: .3rem;
  background: var(--surface);
  font-size: var(--text-xs);
  line-height: 1.35;
}

.planning-grid-event--activity { border-left-color: var(--muted); }
.planning-grid-event--assessment {
  border-left-color: #8b6fc0;
  background: color-mix(in srgb, #8b6fc0 16%, var(--paper));
}
.planning-grid-event--holiday {
  border-left-color: var(--coral);
  background: color-mix(in srgb, var(--coral) 14%, var(--paper));
}
.planning-grid-event--pause {
  border-left-color: var(--muted);
  background: color-mix(in srgb, var(--muted) 10%, var(--paper));
}

.planning-grid-event strong {
  font-size: var(--text-xs);
  line-height: 1.25;
}

.planning-grid-event-type {
  color: var(--muted);
  font-size: var(--text-2xs);
  font-weight: 800;
  text-transform: uppercase;
}

.planning-empty {
  margin: 1rem 0 0;
  color: var(--muted);
  text-align: center;
}

.academic-calendar-section { margin-top: clamp(3rem, 7vw, 5rem); }

.academic-calendar-intro {
  margin-bottom: 1rem;
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-lg);
  font-weight: 700;
}

.academic-calendar-disclosure {
  margin-bottom: 2rem;
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--surface);
}

.academic-calendar-disclosure summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.15rem, 3vw, 1.6rem);
  list-style: none;
  cursor: pointer;
}

.academic-calendar-disclosure summary::-webkit-details-marker { display: none; }

.academic-calendar-disclosure summary:hover {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.academic-calendar-disclosure summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 3px;
}

.academic-calendar-disclosure summary .eyebrow { display: block; }

.academic-calendar-disclosure summary strong {
  display: block;
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-lg);
}

.disclosure-action {
  color: var(--accent-dark);
  font-size: var(--text-sm);
  font-weight: 750;
  white-space: nowrap;
}

.academic-calendar-disclosure[open] .disclosure-action span {
  display: inline-block;
  transform: rotate(180deg);
}

.academic-calendar-disclosure-content {
  padding: 0 clamp(1.15rem, 3vw, 1.6rem) clamp(1.4rem, 3vw, 1.8rem);
  border-top: 1px solid var(--line);
}

.academic-period-title {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-weight: 700;
}

.academic-calendar-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
}

.academic-calendar-event {
  padding: .9rem .9rem .9rem 1rem;
  border: 1px solid var(--line);
  border-left: .2rem solid var(--accent);
  border-radius: .35rem;
  background: var(--paper);
}

.academic-calendar-event--holiday { border-left-color: var(--coral); }
.academic-calendar-event--pause { border-left-color: var(--muted); }

.academic-calendar-event p,
.academic-calendar-event h3 { margin: 0; }

.academic-calendar-event h3 {
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-sm);
  line-height: 1.35;
}

.academic-calendar-event h3 + p {
  margin-top: .25rem;
  color: var(--muted);
  font-size: var(--text-sm);
}

.calendar-date {
  color: var(--accent-dark);
  font-size: var(--text-sm);
  font-weight: 750;
}

.page-header { padding: clamp(4rem, 10vw, 7rem) 0 clamp(2.5rem, 6vw, 4rem); }

.course-page-header { padding-bottom: clamp(1rem, 2vw, 1.5rem); }
.course-page-header + .course-overview { padding-top: clamp(1.25rem, 3vw, 2rem); }

.activity-download {
  display: inline-flex;
  margin-top: 1rem;
}

.activity-overview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 1rem 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.activity-details {
  margin: 0;
}

.activity-details dt {
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.activity-details dd {
  margin: .1rem 0 0;
  font-weight: 750;
}

.activity-status {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: .25rem .7rem;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 700;
}

.activity-status {
  color: #fff;
  background: var(--accent-dark);
}

.activity-status--overdue { background: var(--coral); }

.activity-delivery {
  margin-bottom: clamp(2rem, 5vw, 3rem);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--surface);
}

.activity-delivery-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.activity-delivery-heading h2 {
  margin: 0;
  font-size: var(--text-xl);
}

.activity-delivery > p { margin-bottom: 0; }

.activity-submit {
  margin-top: 0;
  white-space: nowrap;
}

.activity-rubric {
  margin: 0 0 clamp(3rem, 7vw, 5rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: .75rem;
  background: var(--surface);
}

.activity-rubric h2 {
  margin-top: .15rem;
  font-size: var(--text-lg);
}

.activity-rubric-disclosure {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: var(--paper);
  overflow: hidden;
}

.activity-rubric-disclosure > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  color: #fff;
  background: var(--coral);
  cursor: pointer;
  font-family: Poppins, Inter, sans-serif;
  font-weight: 750;
  list-style: none;
}

.activity-rubric-disclosure > summary::-webkit-details-marker { display: none; }

.activity-rubric-disclosure-action {
  font-size: var(--text-md);
  transition: transform .2s ease;
}

.activity-rubric-disclosure[open] .activity-rubric-disclosure-action {
  transform: rotate(180deg);
}

.activity-rubric-disclosure-content { padding: 1rem; }

.activity-rubric-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: var(--paper);
}

.activity-rubric-table-wrapper:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 3px;
}

.activity-rubric-table {
  width: 100%;
  min-width: 48rem;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.activity-rubric-table th,
.activity-rubric-table td {
  padding: .9rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.activity-rubric-table tr > :last-child { border-right: 0; }
.activity-rubric-table tbody tr:last-child > * { border-bottom: 0; }

.activity-rubric-table thead th {
  color: #fff;
  background: var(--coral);
  font-family: Poppins, Inter, sans-serif;
}

[data-theme="dark"] .activity-rubric-table thead th { color: #fff; }

.activity-rubric-table thead span {
  display: block;
  margin-top: .15rem;
  color: inherit;
  font-family: Inter, sans-serif;
  font-size: var(--text-xs);
  font-weight: 700;
}

.activity-rubric-table tbody th {
  width: 22%;
  background: color-mix(in srgb, var(--coral) 24%, var(--paper));
  font-family: Poppins, Inter, sans-serif;
}

.site-footer {
  padding: 2.5rem 0;
  color: #dbe2ed;
  background: #0d1b2a;
}

.site-footer p { margin: 0; }

.site-footer .footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
}

.footer-brand {
  font-family: Poppins, Inter, sans-serif;
  font-size: var(--text-md);
}

.footer-powered { text-align: center; }

.footer-credit { text-align: right; }

.heart {
  color: var(--coral);
  font-size: 1.1em;
}

@media (max-width: 42rem) {
  .header-inner,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-inner { padding-block: 1rem; }
  .site-brand,
  .site-brand img { width: 100%; }
  .header-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
    gap: .85rem;
  }
  .header-actions nav { width: 100%; }
  .site-nav { width: 100%; justify-content: space-between; }
  .theme-toggle {
    order: -1;
    align-self: flex-end;
  }
  .course-shell { grid-template-columns: 1fr; gap: 0; }
  .course-sidebar {
    position: static;
    margin-top: 1rem;
  }
  .course-sidebar-disclosure > summary { padding: .85rem 1rem; }
  .intro-grid { grid-template-columns: 1fr; gap: 1rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-illustration { max-width: 19rem; }
  .academic-calendar-disclosure summary {
    align-items: flex-start;
    flex-direction: column;
    gap: .65rem;
  }
  .planning-calendar-toolbar {
    align-items: stretch;
    flex-direction: column;
  }
  .planning-view-toggle { align-self: flex-start; }
  .planning-navigation { justify-content: space-between; }
  .academic-calendar-list { grid-template-columns: 1fr; }
  .activity-overview { grid-template-columns: 1fr; }
  .activity-delivery-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: .5rem;
    text-align: center;
  }

  .footer-powered { display: none; }
  .footer-credit {
    margin-top: .75rem;
    text-align: center;
  }
}