:root {
  color-scheme: light;
  --ink: #102a43;
  --ink-soft: #486581;
  --ink-faint: #627d98;
  --paper: #f7fafc;
  --surface: #ffffff;
  --surface-alt: #edf5f7;
  --surface-strong: #d9eef0;
  --line: #c9dce3;
  --line-strong: #9fbec8;
  --navy: #082f49;
  --navy-soft: #0c4a6e;
  --teal: #0f766e;
  --teal-bright: #14b8a6;
  --blue: #1d4ed8;
  --amber: #b45309;
  --red: #b42318;
  --green: #08783e;
  --shadow-sm: 0 8px 24px rgba(8, 47, 73, 0.08);
  --shadow-md: 0 20px 56px rgba(8, 47, 73, 0.14);
  --radius-sm: 0.65rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.75rem;
  --max-width: 76rem;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e6f3f5;
  --ink-soft: #b7d0d8;
  --ink-faint: #8fb0bb;
  --paper: #071c27;
  --surface: #0b2735;
  --surface-alt: #0e3442;
  --surface-strong: #164755;
  --line: #285364;
  --line-strong: #3b6c7d;
  --navy: #061923;
  --navy-soft: #164e63;
  --teal: #2dd4bf;
  --teal-bright: #5eead4;
  --blue: #7aa2ff;
  --amber: #fbbf24;
  --red: #ff958e;
  --green: #62d99b;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 20px 56px rgba(0, 0, 0, 0.34);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(20, 184, 166, 0.08), transparent 25rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  background-image:
    linear-gradient(rgba(15, 118, 110, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 118, 110, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--blue);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--teal);
}

button,
input,
select {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 5.25rem);
}

h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.8rem);
}

h3 {
  font-size: 1.14rem;
}

small {
  color: var(--ink-soft);
}

.container {
  margin-inline: auto;
  max-width: var(--max-width);
  padding-inline: clamp(1rem, 4vw, 2rem);
  width: 100%;
}

.narrow {
  max-width: 64rem;
}

.skip-link {
  background: var(--surface);
  border: 2px solid var(--teal);
  border-radius: var(--radius-sm);
  color: var(--ink);
  left: 1rem;
  padding: 0.65rem 1rem;
  position: fixed;
  top: -10rem;
  z-index: 200;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 4.75rem;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  gap: 0.75rem;
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  align-items: center;
  background: linear-gradient(135deg, var(--navy-soft), var(--teal));
  border-radius: 0.8rem 0.35rem 0.8rem 0.35rem;
  box-shadow: var(--shadow-sm);
  color: #fff;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 800;
  height: 2.6rem;
  justify-content: center;
  letter-spacing: 0.08em;
  width: 2.6rem;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.96rem;
  line-height: 1.2;
}

.brand small {
  font-size: 0.72rem;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 0.25rem;
}

.site-nav a,
.theme-toggle,
.nav-toggle {
  background: transparent;
  border: 0;
  border-radius: 0.55rem;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.62rem 0.75rem;
  text-decoration: none;
}

.site-nav a:hover,
.theme-toggle:hover,
.nav-toggle:hover {
  background: var(--surface-alt);
  color: var(--ink);
}

.theme-toggle {
  border: 1px solid var(--line);
  margin-left: 0.35rem;
}

.nav-toggle {
  border: 1px solid var(--line);
  display: none;
}

.hero {
  background:
    linear-gradient(112deg, rgba(8, 47, 73, 0.98), rgba(12, 74, 110, 0.94)),
    var(--navy);
  color: #e7f6f8;
  min-height: 41rem;
  overflow: hidden;
  position: relative;
}

.hero::before,
.module-hero::before,
.page-hero::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  inset: 0;
  mask-image: linear-gradient(90deg, #000, transparent);
  pointer-events: none;
  position: absolute;
}

.hero::after {
  background: var(--teal-bright);
  border-radius: 50%;
  content: "";
  filter: blur(90px);
  height: 24rem;
  opacity: 0.12;
  position: absolute;
  right: -7rem;
  top: -8rem;
  width: 24rem;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(3rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 1.12fr) minmax(21rem, 0.88fr);
  min-height: 41rem;
  padding-block: 5.5rem;
  position: relative;
  z-index: 1;
}

.hero h1,
.hero .hero-lead {
  color: #fff;
}

.hero h1 {
  margin-bottom: 1.4rem;
  max-width: 13ch;
}

.hero-lead {
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.6;
  max-width: 48rem;
}

.hero .hero-lead {
  color: #cde4ea;
  max-width: 42rem;
}

.hero-note {
  color: #a8cbd3;
  font-size: 0.88rem;
  margin-top: 1.25rem;
}

.eyebrow {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.hero .eyebrow,
.module-hero .eyebrow {
  color: #5eead4;
}

.button-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button-row.centered {
  justify-content: center;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 0.7rem;
  cursor: pointer;
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 800;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.72rem 1.05rem;
  text-decoration: none;
}

.button.primary {
  background: var(--teal);
  color: #fff;
}

[data-theme="dark"] .button.primary {
  color: #032e2c;
}

.button.primary:hover {
  background: var(--teal-bright);
  color: #062e2b;
}

.button.secondary {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
}

.hero .button.secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
}

.button.secondary:hover,
.button.tertiary:hover {
  background: var(--surface-alt);
  border-color: var(--line-strong);
}

.button.tertiary {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.decision-loop {
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.19);
  border-radius: 50%;
  margin-inline: auto;
  max-width: 27rem;
  position: relative;
  width: 100%;
}

.decision-loop::before,
.decision-loop::after {
  border: 1px dashed rgba(94, 234, 212, 0.35);
  border-radius: 50%;
  content: "";
  inset: 14%;
  position: absolute;
}

.decision-loop::after {
  inset: 29%;
}

.loop-center {
  align-items: center;
  background: rgba(15, 118, 110, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  box-shadow: 0 0 60px rgba(45, 212, 191, 0.25);
  color: #fff;
  display: flex;
  font-size: 1.1rem;
  font-weight: 800;
  height: 8rem;
  inset: 50% auto auto 50%;
  justify-content: center;
  position: absolute;
  transform: translate(-50%, -50%);
  width: 8rem;
}

.loop-item {
  align-items: center;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.85rem;
  color: #fff;
  display: flex;
  font-size: 0.84rem;
  font-weight: 750;
  gap: 0.5rem;
  padding: 0.68rem 0.8rem;
  position: absolute;
}

.loop-item span {
  align-items: center;
  background: #5eead4;
  border-radius: 50%;
  color: #082f49;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  height: 1.6rem;
  justify-content: center;
  width: 1.6rem;
}

.item-1 {
  left: 50%;
  top: -1.4rem;
  transform: translateX(-50%);
}

.item-2 {
  right: -2.1rem;
  top: 50%;
  transform: translateY(-50%);
}

.item-3 {
  bottom: -1.4rem;
  left: 50%;
  transform: translateX(-50%);
}

.item-4 {
  left: -1.7rem;
  top: 50%;
  transform: translateY(-50%);
}

.stats-band {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.stats-grid div {
  border-right: 1px solid var(--line);
  padding: 1.5rem 1rem;
  text-align: center;
}

.stats-grid div:last-child {
  border: 0;
}

.stats-grid strong,
.stats-grid span {
  display: block;
}

.stats-grid strong {
  color: var(--navy-soft);
  font-family: var(--font-mono);
  font-size: 1.7rem;
  line-height: 1.2;
}

[data-theme="dark"] .stats-grid strong {
  color: var(--teal-bright);
}

.stats-grid span {
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
}

.origin-framework {
  align-items: start;
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: minmax(0, 1.05fr) minmax(19rem, 0.95fr);
  padding-block: clamp(4rem, 8vw, 6.5rem) 2rem;
}

.framework-copy > p:not(.eyebrow) {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 68ch;
}

.decision-ladder {
  counter-reset: none;
  display: grid;
  gap: 0.75rem;
  list-style: none;
  margin: 1.75rem 0;
  padding: 0;
}

.decision-ladder li {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 0.9rem;
  grid-template-columns: auto 1fr;
  padding: 0.9rem 1rem;
}

.decision-ladder li > span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 900;
  padding-top: 0.15rem;
}

.decision-ladder strong {
  color: var(--ink);
}

.decision-ladder p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0.15rem 0 0;
}

.origin-visual {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.origin-visual summary {
  color: var(--ink);
  cursor: pointer;
  font-weight: 850;
  padding: 1.2rem 1.35rem;
}

.origin-visual summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--teal) 45%, transparent);
  outline-offset: -3px;
}

.origin-visual figure {
  border-top: 1px solid var(--line);
  margin: 0;
  padding: 1rem;
}

.origin-visual img {
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
  display: block;
  height: auto;
  width: 100%;
}

.origin-visual figcaption {
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.55;
  padding-top: 0.75rem;
}

.start-panel,
.callout-panel,
.note-panel {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.25fr 0.75fr;
  margin-block: 4rem;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.start-panel h2,
.callout-panel h2,
.note-panel h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 0.8rem;
}

.start-panel p,
.callout-panel p,
.note-panel p {
  color: var(--ink-soft);
  margin-bottom: 0;
}

.overall-progress {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.progress-label {
  display: flex;
  font-size: 0.84rem;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

.progress-label strong {
  color: var(--teal);
  font-family: var(--font-mono);
}

.progress-track,
.mini-progress {
  background: color-mix(in srgb, var(--line) 75%, transparent);
  border-radius: 99px;
  height: 0.6rem;
  overflow: hidden;
}

.progress-track span,
.mini-progress span {
  background: linear-gradient(90deg, var(--teal), var(--teal-bright));
  display: block;
  height: 100%;
  transition: width 300ms ease;
  width: 0;
}

.overall-progress .button {
  margin-top: 1rem;
  width: 100%;
}

.course-index {
  padding-block: 2rem 6rem;
}

.section-heading {
  margin-bottom: 2rem;
  max-width: 50rem;
}

.section-heading h2 {
  margin-bottom: 0.8rem;
}

.section-heading > p:last-child {
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.split-heading {
  align-items: end;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr;
  max-width: none;
}

.split-heading p:last-child {
  border-left: 3px solid var(--teal);
  margin-bottom: 0.4rem;
  padding-left: 1rem;
}

.search-control {
  display: grid;
  gap: 0.45rem;
  margin-block: 1.5rem 0.5rem;
  max-width: 38rem;
}

.search-control span {
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.search-control input {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 0.75rem;
  color: var(--ink);
  min-height: 3.2rem;
  padding: 0.7rem 0.95rem;
  width: 100%;
}

.search-control input:focus {
  border-color: var(--teal);
}

.search-status {
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.course-unit {
  padding-top: 4rem;
}

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

.module-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  min-height: 20rem;
  padding: 1.35rem;
  position: relative;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.module-card::before {
  background: linear-gradient(90deg, var(--teal), var(--blue));
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  content: "";
  height: 0.24rem;
  inset: 0 0 auto;
  opacity: 0;
  position: absolute;
  transition: opacity 180ms ease;
}

.module-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.module-card:hover::before {
  opacity: 1;
}

.module-card[hidden] {
  display: none;
}

.module-card-top {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.module-number,
.module-unit {
  border-radius: 99px;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.55rem;
}

.module-number {
  background: color-mix(in srgb, var(--teal) 14%, transparent);
  color: var(--teal);
}

.module-unit {
  color: var(--ink-faint);
}

.module-card h3 {
  font-size: 1.24rem;
  margin: 1.3rem 0 0.75rem;
}

.module-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.module-card p {
  color: var(--ink-soft);
  flex: 1;
  font-size: 0.92rem;
}

.module-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.4rem 0 1rem;
}

.module-card-meta span {
  border: 1px solid var(--line);
  border-radius: 99px;
  color: var(--ink-faint);
  font-size: 0.66rem;
  padding: 0.22rem 0.45rem;
}

.text-link {
  color: var(--teal);
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
}

.text-link span {
  display: inline-block;
  transition: transform 180ms ease;
}

.text-link:hover span {
  transform: translateX(0.25rem);
}

.page-hero,
.module-hero {
  background:
    linear-gradient(118deg, rgba(8, 47, 73, 0.98), rgba(12, 74, 110, 0.94)),
    var(--navy);
  color: #e7f6f8;
  overflow: hidden;
  position: relative;
}

.page-hero.compact {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-hero .container,
.module-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1,
.page-hero .hero-lead,
.module-hero h1,
.module-hero .hero-lead {
  color: #fff;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.3rem);
  margin-bottom: 1.2rem;
}

.page-hero .hero-lead,
.module-hero .hero-lead {
  color: #c8e1e7;
}

.breadcrumbs {
  color: #9fc5ce;
  font-size: 0.8rem;
  margin-bottom: 2rem;
}

.breadcrumbs a {
  color: #d6f0f2;
}

.content-layout {
  align-items: start;
  display: grid;
  gap: 4rem;
  grid-template-columns: 13rem minmax(0, 1fr);
  padding-block: 4rem 7rem;
}

.toc,
.module-sidebar {
  position: sticky;
  top: 6.3rem;
}

.toc {
  border-left: 1px solid var(--line);
  display: grid;
  gap: 0.2rem;
  padding-left: 1rem;
}

.toc strong {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.toc a,
.module-sidebar nav a {
  border-radius: 0.45rem;
  color: var(--ink-soft);
  font-size: 0.84rem;
  padding: 0.35rem 0.45rem;
  text-decoration: none;
}

.toc a:hover,
.module-sidebar nav a:hover {
  background: var(--surface-alt);
  color: var(--teal);
}

.content-column {
  min-width: 0;
}

.content-section {
  padding-block: 2rem 3.5rem;
}

.content-section + .content-section {
  border-top: 1px solid var(--line);
}

.content-section h2 {
  margin-bottom: 1.2rem;
}

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

.outcome-grid article,
.comparison-grid article,
.track-card,
.rubric-grid article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.35rem;
}

.outcome-grid span,
.track-card > span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.outcome-grid h3,
.comparison-grid h3,
.track-card h2,
.rubric-grid h3 {
  font-size: 1.1rem;
  margin: 0.6rem 0;
}

.outcome-grid p,
.comparison-grid p,
.track-card p,
.rubric-grid p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.track-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.track-card {
  min-height: 16rem;
}

.track-card h2 {
  font-size: 1.35rem;
}

.track-card strong {
  color: var(--teal);
  display: block;
  font-size: 0.8rem;
  margin-top: 1.2rem;
}

.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
}

caption {
  font-size: 1.05rem;
  font-weight: 800;
  padding: 1rem 1.15rem;
  text-align: left;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.95rem 1rem;
  text-align: left;
  vertical-align: top;
}

thead th {
  background: var(--surface-alt);
  color: var(--ink-soft);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

tbody tr {
  background: var(--surface);
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

tbody th {
  font-size: 0.9rem;
}

td {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.table-link {
  color: var(--teal);
  font-weight: 800;
}

.timeline {
  margin-inline: auto;
  max-width: 62rem;
}

.timeline article {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 4rem 1fr;
  padding-bottom: 2rem;
  position: relative;
}

.timeline article::before {
  background: var(--line);
  content: "";
  left: 1.48rem;
  position: absolute;
  top: 3rem;
  bottom: 0;
  width: 1px;
}

.timeline article:last-child::before {
  display: none;
}

.timeline article > span {
  align-items: center;
  background: var(--navy-soft);
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  height: 3rem;
  justify-content: center;
  width: 3rem;
}

.timeline h3 {
  margin-bottom: 0.5rem;
}

.timeline p {
  color: var(--ink-soft);
  margin-bottom: 0.45rem;
}

.timeline strong {
  color: var(--teal);
  font-size: 0.84rem;
}

.rubric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rubric-grid article {
  min-height: 12rem;
}

.rubric-grid strong {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 2rem;
}

.rubric-total {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 800;
  margin-top: 1rem;
  text-align: right;
}

.note-panel {
  display: block;
  max-width: 72rem;
}

.prose {
  max-width: 55rem;
}

.prose li {
  margin-bottom: 0.6rem;
}

.module-hero {
  padding-block: 3rem 4.5rem;
}

.module-hero-grid {
  align-items: end;
  display: grid;
  gap: 4rem;
  grid-template-columns: minmax(0, 1.3fr) minmax(18rem, 0.7fr);
}

.module-hero h1 {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  margin-bottom: 1.2rem;
  max-width: 15ch;
}

.module-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.module-facts span {
  border-left: 2px solid rgba(94, 234, 212, 0.6);
  color: #c8e1e7;
  display: grid;
  font-size: 0.82rem;
  padding-left: 0.75rem;
}

.module-facts strong {
  color: #fff;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.question-card {
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.question-card span {
  color: #5eead4;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.question-card p {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 650;
  margin: 0.8rem 0 0;
}

.module-layout {
  align-items: start;
  display: grid;
  gap: 4rem;
  grid-template-columns: 14rem minmax(0, 1fr);
  padding-block: 3rem 6rem;
}

.module-sidebar {
  display: grid;
  gap: 1.5rem;
}

.sidebar-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.sidebar-block > strong {
  font-size: 0.8rem;
}

.sidebar-block .mini-progress {
  height: 0.44rem;
  margin-block: 0.75rem 0.5rem;
}

.sidebar-block p {
  color: var(--ink-soft);
  font-size: 0.75rem;
  margin: 0;
}

.module-sidebar nav {
  border-left: 1px solid var(--line);
  display: grid;
  gap: 0.15rem;
  padding-left: 0.7rem;
}

.module-content {
  min-width: 0;
}

.module-content .content-section.first {
  padding-top: 0;
}

.resource-table caption {
  background: var(--navy-soft);
  color: #fff;
}

.resource-table tbody th {
  width: 65%;
}

.resource-hub {
  display: grid;
  gap: 1.4rem;
}

.resource-group {
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.05), transparent 48%),
    var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 2.5vw, 1.5rem);
}

.resource-group-heading {
  align-items: end;
  display: flex;
  gap: 1.25rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.resource-group-heading h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  margin: 0;
}

.resource-group-heading p {
  color: var(--ink-soft);
  font-size: 0.88rem;
  margin: 0;
  max-width: 34rem;
  text-align: right;
}

.resource-card-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.resource-card {
  --resource-accent: var(--teal);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 5px 18px rgba(8, 47, 73, 0.06);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 10.5rem;
  overflow: hidden;
  padding: 1.25rem;
  position: relative;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.resource-card::before {
  background: var(--resource-accent);
  content: "";
  height: 0.3rem;
  inset: 0 0 auto;
  position: absolute;
}

.resource-card:hover {
  border-color: var(--resource-accent);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  transform: translateY(-2px);
}

.resource-card--slides {
  --resource-accent: #7c3aed;
}

.resource-card--simulation {
  --resource-accent: #0891b2;
}

.resource-card--dashboard {
  --resource-accent: #d97706;
}

.resource-card--colab {
  --resource-accent: #f9ab00;
}

.resource-card--assessment {
  --resource-accent: #1d4ed8;
}

.resource-card--reference {
  --resource-accent: #2563eb;
}

.resource-card-kicker {
  color: var(--resource-accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.resource-card strong {
  font-size: 1.05rem;
  line-height: 1.3;
}

.resource-card > span:not(.resource-card-kicker):not(.resource-card-action) {
  color: var(--ink-soft);
  font-size: 0.84rem;
  line-height: 1.5;
}

.resource-card-action {
  color: var(--resource-accent);
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: auto;
}

.progress-checklist {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.25rem;
}

.progress-item {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  cursor: pointer;
  display: flex;
  gap: 0.75rem;
  padding: 0.8rem;
}

.progress-item:hover {
  border-color: var(--teal);
}

.progress-item input {
  accent-color: var(--teal);
  height: 1.1rem;
  width: 1.1rem;
}

.progress-item span {
  display: grid;
}

.progress-item strong {
  font-size: 0.84rem;
}

.progress-item small {
  font-size: 0.7rem;
}

.check-list {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
}

.check-list li {
  background: var(--surface);
  border-left: 3px solid var(--teal);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: var(--shadow-sm);
  padding: 0.85rem 1rem;
}

.theory-list {
  display: grid;
  gap: 1rem;
}

.theory-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  display: grid;
  gap: 1rem;
  grid-template-columns: 3rem 1fr;
  padding: 1.25rem;
}

.theory-card > span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
}

.theory-card h3 {
  margin-bottom: 0.5rem;
}

.theory-card p {
  color: var(--ink-soft);
  margin-bottom: 0;
}

.case-panel,
.deliverable-panel,
.reflection-panel {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 10%, var(--surface)), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.case-panel p:not(.eyebrow),
.deliverable-panel p {
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.deliverable-panel > span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.step-list {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
}

.step-list li {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: 2.4rem 1fr;
  padding: 0.8rem 1rem;
}

.step-list span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.module-pagination {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
  margin-top: 2rem;
}

.module-nav-link {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  display: grid;
  padding: 1rem;
  text-decoration: none;
}

.module-nav-link.next {
  text-align: right;
}

.module-nav-link small {
  font-size: 0.7rem;
  text-transform: uppercase;
}

.module-nav-link strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.module-nav-link:hover {
  border-color: var(--teal);
}

.simulation-section,
.glossary-section,
.quiz-section {
  padding-block: 3rem 6rem;
}

.simulation-root {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  min-height: 34rem;
  overflow: hidden;
}

.sim-header {
  align-items: center;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.25rem;
}

.sim-header h2 {
  font-size: 1.15rem;
  margin: 0;
}

.sim-badge {
  background: color-mix(in srgb, var(--teal) 14%, transparent);
  border-radius: 99px;
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.35rem 0.6rem;
}

.sim-grid {
  display: grid;
  grid-template-columns: minmax(16rem, 0.32fr) minmax(0, 0.68fr);
  min-height: 31rem;
}

.sim-controls {
  background: color-mix(in srgb, var(--surface-alt) 55%, var(--surface));
  border-right: 1px solid var(--line);
  padding: 1.25rem;
}

.sim-controls h3 {
  font-size: 0.84rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.1rem;
  text-transform: uppercase;
}

.control-row {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.45rem;
  padding-block: 0.9rem;
}

.control-row:first-of-type {
  padding-top: 0;
}

.control-row:last-child {
  border: 0;
}

.control-row label,
.control-row .control-label {
  align-items: center;
  color: var(--ink-soft);
  display: flex;
  font-size: 0.78rem;
  font-weight: 750;
  justify-content: space-between;
}

.control-value {
  color: var(--teal);
  font-family: var(--font-mono);
  font-weight: 800;
}

.control-row input[type="range"] {
  accent-color: var(--teal);
  cursor: pointer;
  width: 100%;
}

.control-row select,
.control-row input[type="number"] {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 0.5rem;
  min-height: 2.5rem;
  padding: 0.45rem 0.6rem;
  width: 100%;
}

.switch-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.switch-row input {
  accent-color: var(--teal);
  height: 1.1rem;
  width: 1.1rem;
}

.sim-stage {
  display: grid;
  gap: 1rem;
  min-width: 0;
  padding: 1.25rem;
}

.chart-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  min-height: 19rem;
  overflow: hidden;
  padding: 0.8rem;
}

.chart-panel svg {
  height: auto;
  width: 100%;
}

.chart-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.chart-grid {
  stroke: var(--line);
  stroke-dasharray: 3 4;
  stroke-width: 0.8;
}

.chart-label {
  fill: var(--ink-soft);
  font-family: var(--font-sans);
  font-size: 10px;
}

.chart-primary {
  fill: var(--teal);
  stroke: var(--teal);
}

.chart-secondary {
  fill: var(--blue);
  stroke: var(--blue);
}

.chart-accent {
  fill: var(--amber);
  stroke: var(--amber);
}

.chart-danger {
  fill: var(--red);
  stroke: var(--red);
}

.metric-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.75rem;
}

.metric-card span,
.metric-card strong {
  display: block;
}

.metric-card span {
  color: var(--ink-soft);
  font-size: 0.68rem;
  font-weight: 750;
  text-transform: uppercase;
}

.metric-card strong {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  margin-top: 0.25rem;
}

.sim-explanation {
  background: color-mix(in srgb, var(--teal) 8%, var(--surface));
  border-left: 3px solid var(--teal);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
  font-size: 0.86rem;
  margin: 0;
  padding: 0.7rem 0.85rem;
}

.workflow-list {
  display: grid;
  gap: 0.55rem;
}

.workflow-step {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  cursor: grab;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: 2rem 1fr auto;
  padding: 0.7rem;
}

.workflow-step span:first-child {
  align-items: center;
  background: var(--surface-alt);
  border-radius: 0.45rem;
  display: flex;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  height: 2rem;
  justify-content: center;
}

.workflow-step strong {
  font-size: 0.82rem;
}

.workflow-step small {
  display: block;
  font-size: 0.68rem;
}

.workflow-step.is-correct {
  border-color: var(--green);
}

.move-buttons {
  display: flex;
  gap: 0.3rem;
}

.tiny-button {
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.64rem;
  font-weight: 750;
  padding: 0.3rem 0.4rem;
}

.tiny-button:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.chart-caption {
  color: var(--ink-soft);
  font-size: 0.76rem;
  margin: 0.8rem 0 0;
  text-align: center;
}

.matrix-grid {
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(12, 1fr);
}

.matrix-cell {
  aspect-ratio: 1;
  background: var(--teal);
  border-radius: 2px;
}

.matrix-cell.missing {
  background: var(--amber);
}

.confusion-grid {
  display: grid;
  gap: 0.45rem;
  grid-template-columns: repeat(2, 1fr);
  margin: auto;
  max-width: 25rem;
}

.confusion-cell {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 6.5rem;
  padding: 0.7rem;
}

.confusion-cell.good {
  background: color-mix(in srgb, var(--green) 12%, var(--surface));
}

.confusion-cell.bad {
  background: color-mix(in srgb, var(--red) 10%, var(--surface));
}

.confusion-cell strong {
  font-family: var(--font-mono);
  font-size: 1.5rem;
}

.confusion-cell span {
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.truth-table {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.truth-table div {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.truth-table span {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.55rem;
  text-align: center;
}

.truth-table div:last-child span {
  border-bottom: 0;
}

.lp-canvas,
.cluster-canvas,
.neural-canvas {
  min-height: 22rem;
}

.milestone-list {
  display: grid;
  gap: 0.45rem;
  grid-template-columns: repeat(4, 1fr);
}

.milestone-item {
  align-items: center;
  background: color-mix(in srgb, var(--surface-alt) 80%, transparent);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  color: var(--ink);
  display: flex;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  gap: 0.35rem;
  padding: 0.42rem;
}

.milestone-item input {
  accent-color: var(--teal);
  margin: 0;
}

.milestone-item span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-weight: 800;
}

.reflection-panel {
  margin-top: 2rem;
}

.reflection-panel h2 {
  font-size: 1.35rem;
}

.reflection-panel ol {
  margin-bottom: 0;
}

.alert {
  background: color-mix(in srgb, var(--amber) 14%, var(--surface));
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  padding: 0.8rem;
}

.glossary-section .search-control {
  margin-inline: auto;
}

.glossary-section .search-status {
  text-align: center;
}

.glossary-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-block: 2rem 3rem;
}

.glossary-entry {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  min-height: 10rem;
  padding: 1.25rem;
  position: relative;
}

.glossary-entry::before {
  background: var(--teal);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  content: "";
  inset: 0 auto 0 0;
  position: absolute;
  width: 0.25rem;
}

.glossary-entry[hidden] {
  display: none;
}

.glossary-entry h2 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.glossary-entry p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 0;
}

.quiz-form {
  display: grid;
  gap: 1.25rem;
  margin-inline: auto;
  max-width: 58rem;
}

.quiz-question {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin: 0;
  padding: 1.25rem;
}

.quiz-question legend {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.45;
  padding: 0 0.5rem;
}

.quiz-question legend span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-right: 0.7rem;
}

.quiz-options {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.8rem;
}

.quiz-option {
  cursor: pointer;
}

.quiz-option input {
  height: 1px;
  opacity: 0;
  position: absolute;
  width: 1px;
}

.quiz-option span {
  align-items: center;
  background: var(--surface-alt);
  border: 1px solid transparent;
  border-radius: 0.65rem;
  display: grid;
  font-size: 0.9rem;
  gap: 0.75rem;
  grid-template-columns: 2rem 1fr;
  padding: 0.7rem;
}

.quiz-option b {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  height: 2rem;
  justify-content: center;
  width: 2rem;
}

.quiz-option input:focus-visible + span {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.quiz-option input:checked + span {
  background: color-mix(in srgb, var(--teal) 10%, var(--surface));
  border-color: var(--teal);
}

.quiz-option.correct span {
  background: color-mix(in srgb, var(--green) 12%, var(--surface));
  border-color: var(--green);
}

.quiz-option.incorrect span {
  background: color-mix(in srgb, var(--red) 10%, var(--surface));
  border-color: var(--red);
}

.question-feedback {
  border-radius: 0.55rem;
  color: var(--ink-soft);
  display: none;
  font-size: 0.82rem;
  margin: 0.75rem 0 0;
  padding: 0.6rem 0.7rem;
}

.question-feedback.visible {
  background: var(--surface-alt);
  display: block;
}

.quiz-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-block: 1rem 2rem;
}

.quiz-result {
  background: var(--navy-soft);
  border-radius: var(--radius-lg);
  color: #e7f6f8;
  margin: 0 auto 2rem;
  max-width: 36rem;
  padding: 2rem;
  text-align: center;
}

.quiz-result > span,
.quiz-result > strong {
  display: block;
}

.quiz-result > span {
  color: #9ee7de;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.quiz-result > strong {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  margin-block: 0.4rem;
}

.quiz-result p {
  color: #c9e3e8;
}

.site-footer {
  background: var(--navy);
  color: #c8e1e7;
  padding-block: 3rem;
}

.footer-grid {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr auto;
}

.site-footer strong {
  color: #fff;
}

.site-footer p {
  font-size: 0.84rem;
  margin: 0.4rem 0 0;
}

.site-footer .footer-grid > div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: #c8e1e7;
  font-size: 0.84rem;
}

@media (max-width: 64rem) {
  .hero-grid {
    gap: 3rem;
    grid-template-columns: 1fr 21rem;
  }

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

  .rubric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .content-layout,
  .module-layout {
    gap: 2.5rem;
    grid-template-columns: 12rem minmax(0, 1fr);
  }

  .sim-grid {
    grid-template-columns: 16rem minmax(0, 1fr);
  }

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

@media (max-width: 50rem) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: none;
    left: 1rem;
    padding: 0.75rem;
    position: absolute;
    right: 1rem;
    top: 4.2rem;
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a,
  .theme-toggle {
    margin: 0;
    text-align: left;
    width: 100%;
  }

  .hero-grid,
  .module-hero-grid,
  .start-panel,
  .callout-panel,
  .origin-framework {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding-block: 4rem 5.5rem;
  }

  .decision-loop {
    max-width: 21rem;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats-grid div {
    border-bottom: 1px solid var(--line);
  }

  .course-unit {
    padding-top: 3rem;
  }

  .split-heading {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .content-layout,
  .module-layout {
    display: block;
  }

  .toc {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 0.8rem;
    position: static;
  }

  .toc strong {
    width: 100%;
  }

  .module-sidebar {
    margin-bottom: 2rem;
    position: static;
  }

  .module-sidebar nav {
    display: none;
  }

  .sim-grid {
    display: block;
  }

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

  .module-hero {
    padding-block: 2.5rem 3rem;
  }

  .question-card {
    max-width: 34rem;
  }
}

@media (max-width: 38rem) {
  .brand small {
    display: none;
  }

  .module-grid,
  .outcome-grid,
  .comparison-grid,
  .track-grid,
  .rubric-grid,
  .glossary-grid,
  .progress-checklist,
  .module-pagination {
    grid-template-columns: 1fr;
  }

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

  .stats-grid div:nth-child(even) {
    border-right: 0;
  }

  .module-card {
    min-height: 17rem;
  }

  .decision-loop {
    max-width: 17rem;
  }

  .loop-item {
    font-size: 0.7rem;
    padding: 0.45rem;
  }

  .item-2 {
    right: -1.2rem;
  }

  .item-4 {
    left: -1rem;
  }

  .loop-center {
    height: 6rem;
    width: 6rem;
  }

  .module-nav-link.next {
    text-align: left;
  }

  .quiz-actions,
  .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  th,
  td {
    padding: 0.75rem;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .module-sidebar,
  .button-row,
  .theme-toggle,
  .nav-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .module-layout,
  .content-layout {
    display: block;
  }

  .module-hero,
  .page-hero {
    background: #fff;
    color: #000;
    padding-block: 1rem;
  }

  .module-hero h1,
  .page-hero h1,
  .module-hero .hero-lead,
  .page-hero .hero-lead {
    color: #000;
  }
}

/* Profundización aplicada y bitácoras de decisión */
.section-intro {
  color: var(--muted);
  max-width: 72ch;
}

.advanced-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.4rem;
}

.advanced-card {
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--surface) 86%, var(--blue) 14%));
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  min-height: 9rem;
  padding: 1.2rem;
}

.advanced-card > span {
  color: var(--teal);
  display: block;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .12em;
  margin-bottom: .8rem;
}

.advanced-card p {
  font-weight: 700;
  line-height: 1.55;
  margin: 0;
}

.failure-panel,
.challenge-panel,
.decision-lab {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.failure-panel {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(12rem, .7fr) minmax(18rem, 1.3fr);
  margin-top: 1.25rem;
  padding: 1.4rem;
}

.failure-panel h3,
.challenge-panel h2,
.decision-lab h2 {
  margin: .25rem 0 .7rem;
}

.failure-panel ul,
.challenge-panel ol {
  margin: 0;
  padding-left: 1.2rem;
}

.failure-panel li,
.challenge-panel li {
  margin: .55rem 0;
}

.challenge-panel {
  border-left: .35rem solid var(--amber);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.challenge-panel > span {
  color: var(--amber-strong);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.simulation-author {
  color: var(--muted);
  font-size: .88rem;
  margin: 1rem auto 0;
  text-align: center;
}

.decision-lab {
  margin-top: 1.5rem;
  padding: clamp(1.1rem, 3vw, 1.8rem);
}

.decision-lab-heading {
  align-items: flex-start;
  display: flex;
  gap: 1.2rem;
  justify-content: space-between;
}

.decision-lab-heading p {
  color: var(--muted);
  margin: 0;
  max-width: 68ch;
}

.scenario-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: .65rem;
}

.scenario-comparison {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin: 1.25rem 0;
  overflow-x: auto;
  padding: 1rem;
}

.scenario-comparison > p {
  color: var(--muted);
  margin: 0;
  text-align: center;
}

.scenario-table {
  border-collapse: collapse;
  min-width: 36rem;
  width: 100%;
}

.scenario-table caption {
  font-weight: 850;
  margin-bottom: .75rem;
  text-align: left;
}

.scenario-table th,
.scenario-table td {
  border-bottom: 1px solid var(--line);
  padding: .65rem .7rem;
  text-align: left;
}

.scenario-table thead th {
  color: var(--muted);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

.decision-notes-grid label {
  display: grid;
  font-weight: 800;
  gap: .5rem;
}

.decision-notes-grid textarea {
  background: var(--background);
  border: 1px solid var(--line);
  border-radius: .75rem;
  color: var(--text);
  font: inherit;
  line-height: 1.5;
  min-height: 7rem;
  padding: .8rem;
  resize: vertical;
}

.decision-notes-grid textarea:focus-visible {
  border-color: var(--teal);
  outline: 3px solid color-mix(in srgb, var(--teal) 28%, transparent);
}

.decision-lab-footer {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 1rem;
}

.decision-lab-footer [role="status"] {
  color: var(--muted);
  margin: 0;
}

@media (max-width: 56rem) {
  .resource-group-heading {
    align-items: start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .resource-group-heading p {
    text-align: left;
  }

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

  .advanced-grid,
  .decision-notes-grid {
    grid-template-columns: 1fr;
  }

  .failure-panel {
    grid-template-columns: 1fr;
  }

  .decision-lab-heading,
  .decision-lab-footer {
    align-items: stretch;
    flex-direction: column;
  }
}