/* Population Pyramids mini-course hub — AP HUG Unit 2
   Layout + polish aligned with microtopic guides (1180px content width). */

body.diffusion-learning-hub {
  scroll-padding-top: 96px;
  background: linear-gradient(180deg, #eef2ff 0%, #f8fafc 220px, #f8fafc 100%);
}

/* —— Shared content width (matches .microtopic-main) —— */
body.diffusion-learning-hub .hero.unit-hero .hero-inner,
body.diffusion-learning-hub .diffusion-hero-h2-wrap,
body.diffusion-learning-hub .diffusion-page1-callout,
body.diffusion-learning-hub .journey-strip,
body.diffusion-learning-hub .main-wrap.diffusion-main-wrap {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}

/* —— Hero —— */
body.diffusion-learning-hub .hero.unit-hero {
  position: relative;
  overflow: hidden;
}

body.diffusion-learning-hub .hero.unit-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(820px 520px at 88% -8%, rgba(255, 211, 122, 0.14), transparent 68%),
    radial-gradient(700px 480px at -5% 105%, rgba(123, 163, 232, 0.2), transparent 70%);
  pointer-events: none;
}

body.diffusion-learning-hub .hero.unit-hero .hero-inner {
  display: grid !important;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr) !important;
  align-items: center !important;
  gap: var(--space-6) !important;
  padding: 56px 24px 48px !important;
  position: relative;
  z-index: 1;
}

body.diffusion-learning-hub .diffusion-hero-main {
  min-width: 0;
}

body.diffusion-learning-hub .hero.unit-hero .unit-hero-keypanel {
  align-self: center;
  justify-self: end;
  width: 100%;
  max-width: 26rem;
}

body.diffusion-learning-hub .hero.unit-hero .kicker {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffd37a;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

body.diffusion-learning-hub .hero.unit-hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.15rem) !important;
  line-height: 1.06 !important;
  letter-spacing: -0.042em !important;
  margin-bottom: 14px !important;
  max-width: 18ch;
}

body.diffusion-learning-hub .diffusion-hero-hook {
  margin: 0 0 var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid #ffd37a;
  border-radius: 0 14px 14px 0;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.94);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
}

body.diffusion-learning-hub .diffusion-hero-lead {
  margin: 0 0 var(--space-4);
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 1.35vw, 1.08rem);
  line-height: 1.65;
  max-width: 42rem;
}

body.diffusion-learning-hub .diffusion-hero-lead strong {
  color: #ffffff;
}

body.diffusion-learning-hub .diffusion-hero-highlights {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

body.diffusion-learning-hub .diffusion-hero-highlights li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.94rem;
  line-height: 1.45;
}

body.diffusion-learning-hub .diffusion-hero-highlights-marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
  font-weight: 800;
  font-size: 0.75rem;
}

body.diffusion-learning-hub .diffusion-hero-highlights strong {
  color: #ffffff;
}

body.diffusion-learning-hub .diffusion-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
}

body.diffusion-learning-hub .diffusion-hero-stats li {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 5.5rem;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  text-align: center;
}

body.diffusion-learning-hub .diffusion-hero-stats strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 900;
  color: #ffd37a;
  line-height: 1.1;
}

body.diffusion-learning-hub .diffusion-hero-stats span {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.82);
  margin-top: 4px;
}

body.diffusion-learning-hub .hero.unit-hero .hero-ctas {
  gap: 12px;
  margin-bottom: var(--space-3);
}

body.diffusion-learning-hub .hero.unit-hero .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

body.diffusion-learning-hub .hero.unit-hero .btn-primary:hover,
body.diffusion-learning-hub .hero.unit-hero .btn-primary:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
  transform: translateY(-1px);
}

body.diffusion-learning-hub .diffusion-hero-meta {
  margin-top: var(--space-2);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.86rem;
}

body.diffusion-learning-hub.unit-v2 .unit-hero-keypanel {
  display: block;
}

/* —— Post-hero H2 band —— */
body.diffusion-learning-hub .diffusion-hero-h2-wrap {
  padding-top: var(--space-6);
  padding-bottom: var(--space-2);
}

body.diffusion-learning-hub .diffusion-hero-h2-wrap h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.45rem, 2.8vw, 1.95rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.022em;
}

body.diffusion-learning-hub .diffusion-page1-callout {
  margin-bottom: var(--space-4);
  padding-top: 14px;
  padding-bottom: 16px;
  background: linear-gradient(90deg, #eef2ff 0%, #fff7ed 55%, #fffbeb 100%);
  border: 1px solid #c7d2fe;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(10, 15, 90, 0.04);
}

body.diffusion-learning-hub .diffusion-page1-callout p {
  margin: 0;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.55;
}

body.diffusion-learning-hub .diffusion-page1-callout a {
  font-weight: 800;
  color: #0a0f5a;
}

/* —— Journey strip —— */
body.diffusion-learning-hub .journey-strip {
  margin: var(--space-4) auto var(--space-6);
  padding: var(--space-6) var(--space-6) var(--space-5);
  border: 1px solid #e2e8f0;
  border-radius: 22px;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(10, 15, 90, 0.07);
}

body.diffusion-learning-hub .journey-strip .section-eyebrow {
  display: block;
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #f59e0b;
  margin-bottom: 8px;
}

body.diffusion-learning-hub .journey-strip .roadmap-title {
  margin: 0 0 var(--space-2);
  color: var(--navy);
  font-size: clamp(1.25rem, 2.2vw, 1.55rem);
  font-weight: 800;
}

body.diffusion-learning-hub .journey-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: var(--space-4);
}

body.diffusion-learning-hub .journey-chip {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border-radius: 16px;
  border: 2px solid #e2e8f0;
  background: #fbfcff;
  text-decoration: none;
  color: var(--navy);
  min-height: 44px;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

body.diffusion-learning-hub .journey-chip:hover,
body.diffusion-learning-hub .journey-chip:focus-visible {
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(47, 102, 208, 0.12);
}

body.diffusion-learning-hub .journey-chip.is-here {
  border-color: #f59e0b;
  background: linear-gradient(145deg, #fffbeb 0%, #ffffff 55%);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.15);
}

body.diffusion-learning-hub .journey-chip em {
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #b45309;
}

body.diffusion-learning-hub .journey-chip strong {
  font-size: 0.95rem;
  line-height: 1.3;
}

body.diffusion-learning-hub .journey-chip span {
  font-size: 0.82rem;
  color: #4a5276;
  line-height: 1.45;
}

body.diffusion-learning-hub .roadmap-caption {
  margin: var(--space-4) 0 0;
  font-size: 0.9rem;
}

/* —— Main column (no sidebar) —— */
body.diffusion-learning-hub .main-wrap.diffusion-main-wrap {
  display: block;
  padding-bottom: var(--space-12);
}

body.diffusion-learning-hub .main-wrap.diffusion-main-wrap .section {
  border: 1px solid #e2e8f0;
  border-radius: 22px;
  background: #ffffff;
  padding: 28px 28px 32px;
  margin-bottom: 22px;
  box-shadow: 0 10px 28px rgba(10, 15, 90, 0.055);
}

body.diffusion-learning-hub .main-wrap .section .section-eyebrow {
  display: block;
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #f59e0b;
  margin-bottom: 8px;
}

body.diffusion-learning-hub .main-wrap .section h2,
body.diffusion-learning-hub .main-wrap .section h3 {
  margin: 0 0 14px;
  color: #0a0f5a;
  font-size: clamp(1.3rem, 2.1vw, 1.75rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.018em;
}

body.diffusion-learning-hub .main-wrap .section > p,
body.diffusion-learning-hub .main-wrap .section .aeo-snippet {
  margin: 0 0 1.15em;
  font-size: 1rem;
  line-height: 1.68;
  color: #1f2545;
}

body.diffusion-learning-hub .main-wrap .section > p:last-of-type {
  margin-bottom: 0;
}

body.diffusion-learning-hub .main-wrap .section h3 + p {
  margin-top: 0.15em;
}

body.diffusion-learning-hub .main-wrap .section .muted {
  color: #4a5276;
  font-size: 0.95rem;
}

body.diffusion-learning-hub .main-wrap .section a:not(.btn) {
  color: #c2410c;
  font-weight: 700;
  text-underline-offset: 2px;
}

body.diffusion-learning-hub .main-wrap .section a:not(.btn):hover,
body.diffusion-learning-hub .main-wrap .section a:not(.btn):focus-visible {
  color: #9a3412;
}

/* Quick answer / snippet */
body.diffusion-learning-hub .answer-block.aeo-snippet {
  margin: 0 0 var(--space-4);
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid #dbe2f2;
  border-left: 5px solid #f59e0b;
  background: linear-gradient(135deg, #fff7ed 0%, #eff6ff 100%);
  font-size: 1.05rem;
  line-height: 1.6;
  color: #1f2545;
}

body.diffusion-learning-hub .answer-block.aeo-snippet strong {
  color: #0a0f5a;
}

body.diffusion-learning-hub .quick-answer-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

body.diffusion-learning-hub .main-wrap .section > .quiz-ui,
body.diffusion-learning-hub .main-wrap .section > .flash-ui,
body.diffusion-learning-hub .main-wrap .section > .score-card,
body.diffusion-learning-hub .main-wrap .section > .grid-2,
body.diffusion-learning-hub .main-wrap .section > .study-loop-grid,
body.diffusion-learning-hub .main-wrap .section > .related-grid,
body.diffusion-learning-hub .main-wrap .section > .micro-grid,
body.diffusion-learning-hub .main-wrap .section > .callout,
body.diffusion-learning-hub .main-wrap .section > .hero-ctas {
  margin-top: 20px;
}

body.diffusion-learning-hub .main-wrap .section > p + .callout {
  margin-top: 16px;
}

body.diffusion-learning-hub .quick-answer-btns a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1.5px solid #e0e7ff;
  background: #f8faff;
  color: #0a0f5a !important;
  font-weight: 800;
  font-size: 0.88rem;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

body.diffusion-learning-hub .quick-answer-btns a:hover,
body.diffusion-learning-hub .quick-answer-btns a:focus-visible {
  border-color: #0a0f5a;
  background: #eef2ff;
  transform: translateY(-1px);
  color: #0a0f5a !important;
}

/* —— Sticky section nav —— */
body.diffusion-learning-hub .diffusion-sticky-menu {
  position: sticky;
  top: 72px;
  z-index: 40;
  margin: 0 0 var(--space-5);
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 24px rgba(10, 15, 90, 0.06);
  backdrop-filter: blur(10px);
}

body.diffusion-learning-hub .diffusion-sticky-menu-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

body.diffusion-learning-hub .diffusion-sticky-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid #e2e8f0;
  background: #fbfcff;
  color: #0a0f5a;
  font-size: 0.8rem;
  font-weight: 800;
  text-decoration: none;
  transition: border-color 0.12s ease, background 0.12s ease, color 0.12s ease;
}

body.diffusion-learning-hub .diffusion-sticky-menu a:hover,
body.diffusion-learning-hub .diffusion-sticky-menu a:focus-visible {
  border-color: #0a0f5a;
  background: #eef2ff;
}

body.diffusion-learning-hub .diffusion-sticky-menu a.is-active {
  border-color: #0a0f5a;
  background: #0a0f5a;
  color: #ffffff;
}

/* —— Progress widget —— */
body.diffusion-learning-hub .progress-widget-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0f5a 0%, #1c2580 55%, #2a35a3 100%);
  border: none;
  border-radius: 20px;
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-5);
  box-shadow: 0 16px 40px rgba(10, 15, 90, 0.22);
}

body.diffusion-learning-hub .progress-widget-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px 200px at 100% 0%, rgba(255, 211, 122, 0.18), transparent 70%);
  pointer-events: none;
}

body.diffusion-learning-hub .progress-widget-card > * {
  position: relative;
  z-index: 1;
}

body.diffusion-learning-hub .progress-widget-card h3 {
  margin: 0 0 var(--space-3);
  font-size: 1.1rem;
  color: #ffffff;
  font-weight: 800;
}

body.diffusion-learning-hub .progress-widget-card .progress-bar {
  height: 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: var(--space-2);
}

body.diffusion-learning-hub .progress-widget-card .progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f59e0b, #ffd37a);
  transition: width 0.35s ease;
  border-radius: 999px;
}

body.diffusion-learning-hub .progress-widget-card .progress-pct {
  font-weight: 900;
  font-size: 1.5rem;
  color: #ffd37a;
  margin: 0 0 var(--space-3);
}

body.diffusion-learning-hub .progress-breakdown {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
  display: grid;
  gap: 2px;
}

body.diffusion-learning-hub .progress-breakdown li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  border-bottom: none;
}

body.diffusion-learning-hub .progress-breakdown .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  margin: 0;
  flex-shrink: 0;
}

body.diffusion-learning-hub .progress-breakdown .dot.is-done {
  background: #4ade80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.35);
}

body.diffusion-learning-hub .progress-breakdown .count {
  margin-left: auto;
  font-weight: 800;
  color: #ffffff;
}

body.diffusion-learning-hub .progress-encouragement {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.45;
}

@media (min-width: 760px) {
  body.diffusion-learning-hub .progress-widget-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: var(--space-5) var(--space-6);
    align-items: start;
  }

  body.diffusion-learning-hub .progress-widget-card h3,
  body.diffusion-learning-hub .progress-widget-card .progress-bar,
  body.diffusion-learning-hub .progress-widget-card .progress-pct {
    grid-column: 1;
  }

  body.diffusion-learning-hub .progress-breakdown,
  body.diffusion-learning-hub .progress-encouragement {
    grid-column: 2;
  }

  body.diffusion-learning-hub .progress-breakdown {
    margin-top: 0;
  }
}

/* —— Tables —— */
body.diffusion-learning-hub .exam-connect-table {
  overflow-x: auto;
  margin: 12px 0 22px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
}

body.diffusion-learning-hub .exam-connect-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

body.diffusion-learning-hub .exam-connect-table th,
body.diffusion-learning-hub .exam-connect-table td {
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  text-align: left;
  color: #1f2545;
}

body.diffusion-learning-hub .exam-connect-table th {
  background: #0a0f5a;
  color: #ffffff;
  font-weight: 800;
}

body.diffusion-learning-hub .exam-connect-table tbody tr:nth-child(even) {
  background: #f8faff;
}

/* —— Parts accordion + figure —— */
body.diffusion-learning-hub .pyramid-parts-diagram {
  margin: 8px 0 20px;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  overflow: hidden;
  background: #fbfcff;
}

body.diffusion-learning-hub .pyramid-parts-diagram details {
  border-bottom: 1px solid #e2e8f0;
}

body.diffusion-learning-hub .pyramid-parts-diagram details:last-child {
  border-bottom: 0;
}

body.diffusion-learning-hub .pyramid-parts-diagram summary {
  padding: 16px 18px;
  font-weight: 800;
  color: #0a0f5a;
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  list-style: none;
  transition: background 0.12s ease;
}

body.diffusion-learning-hub .pyramid-parts-diagram summary::-webkit-details-marker {
  display: none;
}

body.diffusion-learning-hub .pyramid-parts-diagram details[open] summary {
  background: #eef2ff;
  color: #1e40af;
}

body.diffusion-learning-hub .pyramid-parts-diagram .part-body {
  padding: 0 18px 16px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: #1f2545;
}

body.diffusion-learning-hub .diffusion-hub-figure {
  margin: 8px 0 28px;
  text-align: center;
  clear: both;
}

body.diffusion-learning-hub .main-wrap .section > p + .diffusion-hub-figure {
  margin-top: 6px;
}

body.diffusion-learning-hub .diffusion-hub-figure + .pyramid-parts-diagram,
body.diffusion-learning-hub .diffusion-hub-figure + .exam-connect-table,
body.diffusion-learning-hub .diffusion-hub-figure + .shape-preview-grid,
body.diffusion-learning-hub .diffusion-hub-figure + .score-card,
body.diffusion-learning-hub .diffusion-hub-figure + .quiz-ui,
body.diffusion-learning-hub .diffusion-hub-figure + .flash-ui {
  margin-top: 4px;
}

body.diffusion-learning-hub .diffusion-hub-figure + p {
  margin-top: 4px;
}

body.diffusion-learning-hub .diffusion-hub-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(10, 15, 90, 0.1);
}

body.diffusion-learning-hub .diffusion-main-wrap .diffusion-hub-figure figcaption {
  margin-top: 10px;
  font-size: 0.88rem;
  line-height: 1.45;
  color: #4a5276;
  text-align: center;
  font-weight: 500;
  text-shadow: none;
}

/* Hero aside figure captions sit on dark navy — need light text (expansion, contagious, hierarchical) */
body.diffusion-learning-hub .diffusion-hero-figure figcaption,
body.diffusion-learning-hub .diffusion-hero-banner-caption {
  margin-top: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.42);
}

body.diffusion-learning-hub #snippet-definition + .diffusion-hub-figure {
  margin-top: 18px;
}

body.diffusion-learning-hub .pyramid-parts-figure {
  margin: 20px 0 0;
  text-align: center;
}

body.diffusion-learning-hub .pyramid-anatomy-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  background: #f8fafc;
  box-shadow: 0 12px 28px rgba(10, 15, 90, 0.08);
}

body.diffusion-learning-hub .pyramid-parts-figure figcaption {
  margin-top: 10px;
  font-size: 0.88rem;
  color: #4a5276;
}

/* —— Shape preview cards —— */
body.diffusion-learning-hub .shape-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

body.diffusion-learning-hub .shape-preview-card {
  border: 2px solid #e2e8f0;
  border-radius: 18px;
  padding: 18px 16px;
  background: #ffffff;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

body.diffusion-learning-hub .shape-preview-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(10, 15, 90, 0.1);
}

body.diffusion-learning-hub .shape-preview-card:nth-child(1) {
  border-top: 4px solid #2563eb;
}

body.diffusion-learning-hub .shape-preview-card:nth-child(2) {
  border-top: 4px solid #16a34a;
}

body.diffusion-learning-hub .shape-preview-card:nth-child(3) {
  border-top: 4px solid #d97706;
}

body.diffusion-learning-hub .shape-preview-card svg {
  width: 100%;
  max-width: 130px;
  height: auto;
  margin: 0 auto 12px;
  display: block;
}

body.diffusion-learning-hub .shape-preview-card h4 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: #0a0f5a;
}

body.diffusion-learning-hub .shape-preview-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: #4a5276;
}

/* —— Callouts —— */
body.diffusion-learning-hub .exam-tip-callout {
  margin-top: var(--space-4);
  padding: 16px 18px;
  border-radius: 14px;
  border: 2px solid #fbbf24;
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  color: #78350f;
  font-size: 0.95rem;
  line-height: 1.55;
}

body.diffusion-learning-hub .exam-tip-callout strong {
  color: #92400e;
}

/* —— Quiz + flash (microtopic-style) —— */
body.diffusion-learning-hub .quiz-ui,
body.diffusion-learning-hub .flash-ui {
  background: #fbfcff;
  border: 1px solid #eef2ff;
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.04);
  margin-top: 16px;
}

body.diffusion-learning-hub .quiz-top,
body.diffusion-learning-hub .flash-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: #4a5276;
}

body.diffusion-learning-hub .quiz-top strong,
body.diffusion-learning-hub .flash-top strong {
  color: #0a0f5a;
  font-size: 0.95rem;
}

body.diffusion-learning-hub .quiz-top .tag,
body.diffusion-learning-hub .flash-top .tag {
  background: #eef2ff;
  color: #4a5276;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
}

body.diffusion-learning-hub .question-box {
  background: #ffffff;
  border: 1px solid #eef2ff;
  border-radius: 18px;
  padding: 20px;
}

body.diffusion-learning-hub .question-box h3 {
  margin-top: 0 !important;
  font-size: 1.05rem !important;
  line-height: 1.5 !important;
  color: #0a0f5a !important;
}

body.diffusion-learning-hub .question-box .option {
  display: block;
  width: 100%;
  text-align: left;
  margin-top: 10px;
  background: #ffffff;
  border: 1.5px solid #eef2ff;
  border-radius: 14px;
  padding: 13px 16px;
  font-size: 0.96rem;
  font-weight: 500;
  color: #1f2545;
  cursor: pointer;
  font-family: inherit;
  line-height: 1.45;
  transition: border-color 0.15s ease, background 0.15s ease;
}

body.diffusion-learning-hub .question-box .option:hover:not(:disabled) {
  border-color: #0a0f5a;
  background: #f8faff;
}

body.diffusion-learning-hub .question-box .option.correct {
  background: #dcfce7;
  border-color: #16a34a;
  color: #14532d;
  font-weight: 700;
}

body.diffusion-learning-hub .question-box .option.wrong {
  background: #fee2e2;
  border-color: #dc2626;
  color: #7f1d1d;
  font-weight: 700;
}

body.diffusion-learning-hub .question-box .explanation {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #f8faff;
  border: 1px solid #e0e7ff;
  font-size: 0.95rem;
  line-height: 1.55;
  color: #1f2545;
}

body.diffusion-learning-hub .flash-card-wrap {
  width: 100%;
}

body.diffusion-learning-hub .flash-card {
  min-height: 280px;
  width: 100%;
  padding: 28px 24px;
  border-radius: 18px;
  border: 2px solid #e0e7ff;
  background: linear-gradient(160deg, #ffffff 0%, #f8faff 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

body.diffusion-learning-hub .flash-card:hover {
  border-color: #0a0f5a;
  box-shadow: 0 8px 24px rgba(10, 15, 90, 0.08);
}

body.diffusion-learning-hub .flash-card .label {
  color: #f59e0b;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
  font-size: 0.78rem;
  margin-bottom: 10px;
}

body.diffusion-learning-hub .flash-card .term {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  color: #0a0f5a;
  letter-spacing: -0.03em;
}

body.diffusion-learning-hub .flash-card .definition {
  font-size: 1.15rem;
  line-height: 1.5;
  color: #1f2545;
  max-width: 52rem;
}

body.diffusion-learning-hub .flash-rating-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

body.diffusion-learning-hub .flash-rating-row button {
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 2px solid var(--line);
  background: var(--card);
  color: var(--navy);
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

body.diffusion-learning-hub .flash-rating-row button:hover {
  transform: translateY(-1px);
}

body.diffusion-learning-hub .flash-rating-row button.is-got {
  background: #ecfdf5;
  border-color: #86efac;
  color: #14532d;
}

body.diffusion-learning-hub .flash-rating-row button.is-practice {
  background: #fff7ed;
  border-color: #fdba74;
  color: #9a3412;
}

body.diffusion-learning-hub .controls {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

body.diffusion-learning-hub .main-wrap .btn-primary {
  background: #0a0f5a;
  color: #ffffff;
}

body.diffusion-learning-hub .main-wrap .btn-primary:hover {
  background: #1c2580;
}

body.diffusion-learning-hub .main-wrap .btn-blue {
  background: #eef2ff;
  color: #0a0f5a;
  border-color: transparent;
}

body.diffusion-learning-hub .main-wrap .btn-blue:hover {
  background: #e0e7ff;
}

/* —— Score card —— */
body.diffusion-learning-hub .score-card {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

body.diffusion-learning-hub .score-card .metric {
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
  text-align: center;
}

body.diffusion-learning-hub .score-card .metric strong {
  display: block;
  font-size: 1.6rem;
  color: #0a0f5a;
  margin-bottom: 4px;
}

body.diffusion-learning-hub .score-card .metric {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #64748b;
}

/* —— Trap cards —— */
body.diffusion-learning-hub .grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

body.diffusion-learning-hub .trap-card {
  padding: var(--space-5);
  border: 1px solid #e2e8f0;
  border-left: 4px solid #dc2626;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(10, 15, 90, 0.04);
}

body.diffusion-learning-hub .trap-card h4 {
  margin: 0 0 var(--space-2);
  color: #0a0f5a;
  font-size: 1rem;
}

body.diffusion-learning-hub .trap-card p {
  margin: var(--space-2) 0 0;
  color: #1f2545;
  font-size: 0.92rem;
  line-height: 1.55;
}

/* —— Diagnostic route —— */
body.diffusion-learning-hub .diag-route-box {
  display: none;
  margin-top: 16px;
  padding: 18px 20px;
  border-radius: 16px;
  border: 2px solid #f59e0b;
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
}

body.diffusion-learning-hub .diag-route-box.is-visible {
  display: block;
}

body.diffusion-learning-hub .diag-route-box p {
  color: #78350f;
  margin: 0 0 12px;
}

body.diffusion-learning-hub .diag-route-box .btn-primary {
  background: #0a0f5a;
  color: #ffffff;
}

/* —— FRQ + study loop —— */
body.diffusion-learning-hub .frq-scenario-card details {
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  margin-bottom: 12px;
  background: #fbfcff;
}

body.diffusion-learning-hub .frq-scenario-card summary {
  padding: 16px 18px;
  font-weight: 800;
  color: #0a0f5a;
  cursor: pointer;
  min-height: 44px;
  list-style: none;
}

body.diffusion-learning-hub .frq-scenario-card summary::-webkit-details-marker {
  display: none;
}

body.diffusion-learning-hub .frq-scenario-card details[open] summary {
  background: #eef2ff;
}

body.diffusion-learning-hub .frq-scenario-card .frq-model {
  padding: 0 18px 18px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: #1f2545;
}

body.diffusion-learning-hub .study-loop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: var(--space-4);
}

body.diffusion-learning-hub .study-loop-card {
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
  transition: border-color 0.12s ease, transform 0.12s ease;
}

body.diffusion-learning-hub .study-loop-card:hover {
  border-color: #93c5fd;
  transform: translateY(-2px);
}

body.diffusion-learning-hub .study-loop-card h4 {
  margin: 0 0 8px;
  color: #0a0f5a;
  font-size: 0.95rem;
}

body.diffusion-learning-hub .study-loop-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: #4a5276;
}

/* —— Related + micro conversion —— */
body.diffusion-learning-hub .related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

body.diffusion-learning-hub .related-card {
  display: block;
  padding: var(--space-5);
  min-height: 2.75rem;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: #ffffff;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

body.diffusion-learning-hub .related-card:hover,
body.diffusion-learning-hub .related-card:focus-visible {
  border-color: #0a0f5a;
  box-shadow: 0 10px 24px rgba(10, 15, 90, 0.08);
  transform: translateY(-2px);
}

body.diffusion-learning-hub .related-card h4 {
  margin: 0 0 var(--space-2);
  color: #0a0f5a;
  font-size: 1rem;
}

body.diffusion-learning-hub .related-card p {
  margin: 0;
  color: #4a5276;
  font-size: 0.875rem;
}

body.diffusion-learning-hub .micro-conversions .micro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

body.diffusion-learning-hub .micro-card {
  padding: var(--space-5);
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: linear-gradient(180deg, #fffbeb 0%, #ffffff 40%);
  text-align: center;
}

body.diffusion-learning-hub .micro-card .micro-icon {
  font-size: 1.75rem;
  line-height: 1;
}

body.diffusion-learning-hub .micro-card h4 {
  margin: var(--space-2) 0;
  color: #0a0f5a;
}

body.diffusion-learning-hub .micro-card p {
  margin: 0;
  color: #4a5276;
  font-size: 0.9rem;
}

/* —— FAQ inside sections —— */
body.diffusion-learning-hub #faq details {
  border: 1px solid #eef2ff;
  border-radius: 14px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: #fbfcff;
}

body.diffusion-learning-hub #faq details summary {
  cursor: pointer;
  font-weight: 700;
  color: #0a0f5a;
  font-size: 1rem;
  list-style: none;
}

body.diffusion-learning-hub #faq .faq-answer {
  margin: 12px 0 0;
  color: #1f2545;
  line-height: 1.6;
}

/* —— Final loop (dark band from unit-page) —— */
body.diffusion-learning-hub .final-content-loop {
  border: none;
  background: linear-gradient(135deg, #0a0f5a 0%, #1c2580 60%, #2a35a3 100%);
}

body.diffusion-learning-hub .final-content-loop h3 {
  color: #ffffff !important;
}

body.diffusion-learning-hub .final-content-loop .muted {
  color: rgba(255, 255, 255, 0.78) !important;
}

body.diffusion-learning-hub .final-content-loop .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
}

/* —— Responsive —— */
@media (max-width: 980px) {
  body.diffusion-learning-hub .hero.unit-hero .hero-inner {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    padding: 40px 18px 32px !important;
    gap: var(--space-4) !important;
  }

  body.diffusion-learning-hub .diffusion-hero-main {
    display: contents;
  }

  body.diffusion-learning-hub .unit-breadcrumb {
    order: 1;
  }

  body.diffusion-learning-hub .hero.unit-hero .kicker {
    order: 2;
  }

  body.diffusion-learning-hub .hero.unit-hero h1 {
    order: 3;
    font-size: clamp(1.75rem, 7.5vw, 2.35rem) !important;
    line-height: 1.05 !important;
    max-width: none;
  }

  body.diffusion-learning-hub .diffusion-hero-hook {
    order: 4;
    font-size: 0.95rem;
    padding: var(--space-2) var(--space-3);
  }

  body.diffusion-learning-hub .diffusion-hero-lead {
    order: 5;
    font-size: 0.95rem;
    margin-bottom: var(--space-3);
  }

  body.diffusion-learning-hub .diffusion-hero-highlights {
    order: 6;
    margin-bottom: var(--space-3);
  }

  body.diffusion-learning-hub .diffusion-hero-stats {
    order: 7;
    margin-bottom: var(--space-3);
  }

  body.diffusion-learning-hub .hero.unit-hero .hero-ctas {
    order: 8;
    flex-direction: column;
    align-items: stretch;
  }

  body.diffusion-learning-hub .hero.unit-hero .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }

  body.diffusion-learning-hub .unit-hero-keypanel {
    order: 9;
    display: block !important;
    max-width: none;
    justify-self: stretch;
  }

  body.diffusion-learning-hub .diffusion-hero-meta {
    order: 10;
  }

  body.diffusion-learning-hub .journey-strip-grid {
    grid-template-columns: 1fr 1fr;
  }

  body.diffusion-learning-hub .shape-preview-grid {
    grid-template-columns: 1fr;
  }

  body.diffusion-learning-hub .related-grid,
  body.diffusion-learning-hub .micro-conversions .micro-grid,
  body.diffusion-learning-hub .grid-2,
  body.diffusion-learning-hub .score-card {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  body.diffusion-learning-hub .hero.unit-hero .hero-inner,
  body.diffusion-learning-hub .diffusion-hero-h2-wrap,
  body.diffusion-learning-hub .journey-strip,
  body.diffusion-learning-hub .main-wrap.diffusion-main-wrap {
    padding-left: 18px;
    padding-right: 18px;
  }

  body.diffusion-learning-hub .main-wrap.diffusion-main-wrap .section {
    padding: 22px 18px 26px;
  }

  body.diffusion-learning-hub .progress-widget-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body.diffusion-learning-hub .journey-strip-grid {
    grid-template-columns: 1fr;
  }

  body.diffusion-learning-hub .diffusion-sticky-menu-inner {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }

  body.diffusion-learning-hub .related-grid,
  body.diffusion-learning-hub .micro-conversions .micro-grid,
  body.diffusion-learning-hub .grid-2,
  body.diffusion-learning-hub .score-card {
    grid-template-columns: 1fr;
  }

  body.diffusion-learning-hub .diffusion-hero-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 380px) {
  body.diffusion-learning-hub .hero.unit-hero h1 {
    font-size: 1.65rem !important;
  }
}

/* Page 2 — exam hero: tighter top, readable density (overrides unit-page 10/10 patch) */
body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero {
  padding: 6px 16px 14px !important;
  min-height: auto !important;
  max-height: none !important;
  overflow: visible !important;
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-exam-hero-inner {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 22.5rem);
  grid-template-areas:
    "crumb crumb"
    "kicker kicker"
    "main keypanel";
  padding: 10px 20px 18px !important;
  column-gap: 22px !important;
  row-gap: 0 !important;
  align-items: start !important;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-exam-hero-inner > .unit-breadcrumb {
  grid-area: crumb;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-exam-hero-inner > .kicker {
  grid-area: kicker;
  margin-bottom: 10px !important;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-exam-hero-inner > .diffusion-hero-main {
  grid-area: main;
  min-width: 0;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-exam-hero-inner > .unit-hero-keypanel {
  grid-area: keypanel;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-breadcrumb {
  margin: 0 0 6px !important;
  font-size: 0.72rem !important;
  line-height: 1.25 !important;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-breadcrumb ol {
  gap: 4px 5px;
  row-gap: 2px;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-breadcrumb a {
  font-weight: 700;
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .kicker {
  margin-bottom: 8px !important;
  padding: 5px 12px;
  font-size: 0.7rem !important;
  letter-spacing: 0.05em;
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero h1 {
  font-size: clamp(1.55rem, 2.8vw, 2.2rem) !important;
  line-height: 1.08 !important;
  letter-spacing: -0.032em !important;
  margin: 0 0 10px !important;
  max-width: none !important;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-hook {
  margin: 0 0 10px;
  padding: 10px 12px;
  font-size: 0.92rem;
  line-height: 1.45;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-lead {
  margin: 0 0 12px;
  font-size: 0.9rem;
  line-height: 1.52;
  max-width: 38rem;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-highlights {
  gap: 6px;
  margin-bottom: 12px;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-highlights li {
  font-size: 0.84rem;
  line-height: 1.38;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-highlights-marker {
  width: 1.2rem;
  height: 1.2rem;
  font-size: 0.68rem;
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .hero-ctas {
  margin-bottom: 8px !important;
  gap: 10px !important;
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .hero-ctas .btn {
  padding: 10px 16px;
  font-size: 0.9rem;
}

body.diffusion-exam-page.diffusion-learning-hub .diffusion-hero-meta {
  margin-top: 1em;
  margin-bottom: 0.25em;
  font-size: 0.62rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.72);
}

body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .unit-hero-keypanel {
  width: 100%;
  max-width: none;
  margin: 1rem 0 0;
  padding: 0;
  align-self: start;
  justify-self: stretch;
  border: none;
  background: transparent;
  box-shadow: none;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-hero-keypanel .keypanel-screen {
  padding: 12px 12px 10px;
  height: 100%;
  box-sizing: border-box;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-hero-keypanel .keypanel-list::after {
  display: none;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-hero-keypanel .keypanel-title {
  font-size: 0.72rem;
  margin-bottom: 7px;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-hero-keypanel .keypanel-list {
  gap: 5px;
}

body.diffusion-exam-page.diffusion-learning-hub .unit-hero-keypanel .keypanel-list li {
  font-size: 0.76rem;
  line-height: 1.32;
  padding: 6px 8px;
}

/* unit-v2 hides keypanel below 980px — keep it on exam guide */
body.diffusion-exam-page.unit-v2 .hero.unit-hero .unit-hero-keypanel {
  display: block !important;
}

@media (max-width: 980px) {
  body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-exam-hero-inner {
    display: flex !important;
    flex-direction: column !important;
    padding: 12px 16px 20px !important;
    gap: 0 !important;
  }

  body.diffusion-exam-page.diffusion-learning-hub .diffusion-exam-hero-inner > .unit-hero-keypanel {
    display: block !important;
    max-width: none;
    margin-top: var(--space-4);
  }

  body.diffusion-exam-page.diffusion-learning-hub .hero.unit-hero h1 {
    font-size: clamp(1.45rem, 6.5vw, 1.95rem) !important;
  }
}

@media (max-width: 760px) {
  body.diffusion-exam-page.diffusion-learning-hub .unit-breadcrumb {
    font-size: 0.68rem !important;
  }
}

/* Page 2 — AP exam guide */
body.diffusion-exam-page .diffusion-exam-figure {
  margin: 20px auto 28px;
}

body.diffusion-exam-page .section-exam-quick + .diffusion-exam-figure {
  margin-top: 8px;
  margin-bottom: 32px;
}

body.diffusion-exam-page .diffusion-page1-callout {
  max-width: 1180px;
  margin: 0 auto 0;
  padding: 16px 24px;
  background: linear-gradient(90deg, #eef2ff 0%, #fff7ed 55%, #fffbeb 100%);
  border-bottom: 1px solid #c7d2fe;
  box-shadow: 0 4px 16px rgba(10, 15, 90, 0.04);
}

body.diffusion-exam-page .diffusion-page1-callout p {
  margin: 0;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.55;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

body.diffusion-exam-page .page1-callout-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  font-weight: 900;
  font-size: 1rem;
  flex-shrink: 0;
}

body.diffusion-exam-page .diffusion-page1-callout a {
  font-weight: 800;
  color: #0a0f5a;
}

body.diffusion-exam-page .section-lead {
  margin: -4px 0 18px;
  font-size: 1.02rem;
  line-height: 1.55;
  max-width: 42rem;
}

body.diffusion-exam-page .section-lead.muted {
  color: #4a5276;
}

body.diffusion-exam-page .section-exam-quick {
  border: 2px solid #c7d2fe;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
}

body.diffusion-exam-page .exam-quick-snippet {
  font-size: 1.06rem;
  line-height: 1.65;
  padding: 20px 22px;
  border-radius: 14px;
  border: 1px solid #e0e7ff;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(10, 15, 90, 0.06);
}

body.diffusion-exam-page .exam-format-trio {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 8px 0 22px;
}

body.diffusion-exam-page .exam-format-card {
  padding: 18px 16px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.05);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

body.diffusion-exam-page .exam-format-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(10, 15, 90, 0.1);
}

body.diffusion-exam-page .exam-format-card:nth-child(1) {
  border-top: 4px solid #2563eb;
}

body.diffusion-exam-page .exam-format-card:nth-child(2) {
  border-top: 4px solid #16a34a;
}

body.diffusion-exam-page .exam-format-card:nth-child(3) {
  border-top: 4px solid #d97706;
}

body.diffusion-exam-page .exam-format-card h4 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: #0a0f5a;
}

body.diffusion-exam-page .exam-format-card p {
  margin: 0 0 8px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #4a5276;
}

body.diffusion-exam-page .exam-format-tip {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  color: #0a0f5a;
  padding-top: 8px;
  border-top: 1px dashed #e2e8f0;
}

body.diffusion-exam-page .ap-skills-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 16px;
}

body.diffusion-exam-page .ap-skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  font-size: 0.82rem;
  color: #0a0f5a;
  cursor: default;
}

body.diffusion-exam-page .ap-skill-chip--describe {
  border-color: #93c5fd;
  background: #eff6ff;
}

body.diffusion-exam-page .ap-skill-chip--explain {
  border-color: #86efac;
  background: #ecfdf5;
}

body.diffusion-exam-page .ap-skill-chip--compare {
  border-color: #fcd34d;
  background: #fffbeb;
}

body.diffusion-exam-page .ap-skill-chip--predict {
  border-color: #c4b5fd;
  background: #f5f3ff;
}

body.diffusion-exam-page .ap-skill-chip--apply {
  border-color: #fda4af;
  background: #fff1f2;
}

body.diffusion-exam-page .ap-skills-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin: 0 0 20px;
}

body.diffusion-exam-page .ap-skill-card {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #fbfcff;
}

body.diffusion-exam-page .ap-skill-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

body.diffusion-exam-page .ap-skill-card-icon {
  font-size: 1.25rem;
  line-height: 1;
}

body.diffusion-exam-page .ap-skill-card h4 {
  margin: 0;
  font-size: 1rem;
  color: #0a0f5a;
}

body.diffusion-exam-page .ap-skill-card-do {
  margin: 0 0 8px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #1f2545;
}

body.diffusion-exam-page .ap-skill-card-prompt {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.45;
  color: #4a5276;
}

body.diffusion-exam-page .ap-skill-card-prompt span {
  font-weight: 800;
  color: #0a0f5a;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.72rem;
}

body.diffusion-exam-page .ap-skill-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
  color: #0a0f5a;
  background: #eef2ff;
}

body.diffusion-exam-page .ap-skill-badge--describe {
  background: #dbeafe;
}

body.diffusion-exam-page .ap-skill-badge--explain {
  background: #dcfce7;
}

body.diffusion-exam-page .ap-skill-badge--compare {
  background: #fef3c7;
}

body.diffusion-exam-page .ap-skill-badge--predict {
  background: #ede9fe;
}

body.diffusion-exam-page .ap-skill-badge--apply {
  background: #ffe4e6;
}

body.diffusion-exam-page .dtm-stage-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.85rem;
  color: #ffffff;
  background: #0a0f5a;
}

body.diffusion-exam-page .dtm-row--s1 .dtm-stage-badge {
  background: #64748b;
}

body.diffusion-exam-page .dtm-row--s2 .dtm-stage-badge {
  background: #2563eb;
}

body.diffusion-exam-page .dtm-row--s3 .dtm-stage-badge {
  background: #16a34a;
}

body.diffusion-exam-page .dtm-row--s4 .dtm-stage-badge {
  background: #0a0f5a;
}

body.diffusion-exam-page .dtm-row--s5 .dtm-stage-badge {
  background: #d97706;
}

body.diffusion-exam-page .strategy-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 18px;
}

body.diffusion-exam-page .strategy-flow-step {
  position: relative;
  padding: 14px 12px;
  border-radius: 12px;
  border: 1px solid #fde68a;
  background: #ffffff;
  text-align: center;
}

body.diffusion-exam-page .strategy-flow-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 900;
  color: #f59e0b;
  font-size: 1.1rem;
  z-index: 1;
}

body.diffusion-exam-page .strategy-flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: #f59e0b;
  color: #ffffff;
  font-weight: 900;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

body.diffusion-exam-page .strategy-flow-step strong {
  display: block;
  color: #0a0f5a;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

body.diffusion-exam-page .strategy-flow-step span:last-child {
  display: block;
  font-size: 0.78rem;
  line-height: 1.4;
  color: #4a5276;
}

body.diffusion-exam-page .trap-grid-exam {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

body.diffusion-exam-page .trap-card-exam {
  padding: 0;
  border: none;
  background: transparent;
  box-shadow: none;
}

body.diffusion-exam-page .trap-card-exam {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  background: #ffffff;
}

body.diffusion-exam-page .trap-card-exam .trap-wrong,
body.diffusion-exam-page .trap-card-exam .trap-better {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: 14px 16px;
  font-size: 0.9rem;
  line-height: 1.5;
}

body.diffusion-exam-page .trap-card-exam .trap-wrong {
  background: #fef2f2;
  border-bottom: 1px solid #fecaca;
}

body.diffusion-exam-page .trap-card-exam .trap-better {
  background: #f0fdf4;
}

body.diffusion-exam-page .trap-label {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  font-weight: 900;
  font-size: 0.75rem;
}

body.diffusion-exam-page .trap-label-wrong {
  background: #fecaca;
  color: #991b1b;
}

body.diffusion-exam-page .trap-label-better {
  background: #bbf7d0;
  color: #14532d;
}

body.diffusion-exam-page .read-step-pills {
  list-style: none;
  margin: 12px 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

body.diffusion-exam-page .read-step-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #e0e7ff;
  background: #ffffff;
  font-weight: 600;
  color: #1f2545;
  font-size: 0.92rem;
}

body.diffusion-exam-page .read-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  font-weight: 900;
  font-size: 0.85rem;
  flex-shrink: 0;
}

body.diffusion-exam-page .progress-widget-exam .progress-widget-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.45);
  color: #ffffff;
  background: transparent;
}

body.diffusion-exam-page .progress-widget-exam .progress-widget-cta .btn-outline:hover,
body.diffusion-exam-page .progress-widget-exam .progress-widget-cta .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  color: #ffffff;
}

body.diffusion-exam-page .progress-widget-exam .progress-widget-cta .btn-blue {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  font-weight: 800;
}

@media (min-width: 901px) {
  body.diffusion-exam-page .ap-skills-cards {
    display: none;
  }
}

@media (max-width: 900px) {
  body.diffusion-exam-page .ap-skills-table-desktop {
    display: none;
  }

  body.diffusion-exam-page .exam-format-trio {
    grid-template-columns: 1fr;
  }

  body.diffusion-exam-page .strategy-flow {
    grid-template-columns: 1fr;
  }

  body.diffusion-exam-page .strategy-flow-step:not(:last-child)::after {
    content: "↓";
    right: auto;
    left: 50%;
    top: auto;
    bottom: -12px;
    transform: translateX(-50%);
  }

  body.diffusion-exam-page .trap-grid-exam {
    grid-template-columns: 1fr;
  }
}

body.diffusion-exam-page #unit-2-connections .section-eyebrow {
  margin-bottom: 4px;
}

body.diffusion-exam-page .unit2-concept-block {
  padding: 18px 20px 18px 22px;
  margin-bottom: 14px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  border-left-width: 5px;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.04);
  transition: box-shadow 0.15s ease;
}

body.diffusion-exam-page .unit2-concept-block:hover {
  box-shadow: 0 8px 22px rgba(10, 15, 90, 0.08);
}

body.diffusion-exam-page .unit2-concept-block:nth-child(2) {
  border-left-color: #2563eb;
}

body.diffusion-exam-page .unit2-concept-block:nth-child(3) {
  border-left-color: #ec4899;
}

body.diffusion-exam-page .unit2-concept-block:nth-child(4) {
  border-left-color: #16a34a;
}

body.diffusion-exam-page .unit2-concept-block:nth-child(5) {
  border-left-color: #d97706;
}

body.diffusion-exam-page .unit2-concept-block:nth-child(6) {
  border-left-color: #8b5cf6;
}

body.diffusion-exam-page .unit2-concept-block:nth-child(7) {
  border-left-color: #dc2626;
}

body.diffusion-exam-page .unit2-concept-block p {
  margin: 0 0 10px;
  color: #1f2545;
  line-height: 1.6;
  font-size: 0.95rem;
}

body.diffusion-exam-page .unit2-concept-block p strong {
  color: #0a0f5a;
  font-size: 1rem;
}

body.diffusion-exam-page .unit2-concept-block p:last-child {
  margin-bottom: 0;
}

body.diffusion-exam-page .ap-skills-table-wrap,
body.diffusion-exam-page .dtm-lookup-table-wrap {
  overflow-x: auto;
  margin: 16px 0 20px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
}

body.diffusion-exam-page .ap-skills-table,
body.diffusion-exam-page .dtm-lookup-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

body.diffusion-exam-page .ap-skills-table th,
body.diffusion-exam-page .ap-skills-table td,
body.diffusion-exam-page .dtm-lookup-table th,
body.diffusion-exam-page .dtm-lookup-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
  color: #1f2545;
}

body.diffusion-exam-page .ap-skills-table thead th,
body.diffusion-exam-page .dtm-lookup-table thead th {
  background: #0a0f5a;
  color: #ffffff;
  font-weight: 700;
}

body.diffusion-exam-page .ap-skills-table tbody tr:nth-child(even),
body.diffusion-exam-page .dtm-lookup-table tbody tr:nth-child(even) {
  background: #f8faff;
}

body.diffusion-exam-page .strategy-box-formula {
  padding: 22px 22px 18px;
  border-radius: 14px;
  border: 2px solid #f59e0b;
  background: linear-gradient(180deg, #fffbeb 0%, #fff7ed 100%);
}

body.diffusion-exam-page .strategy-formula-title {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: #0a0f5a;
}

body.diffusion-exam-page .strategy-example {
  margin-bottom: 14px;
  padding: 14px;
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid #fde68a;
}

body.diffusion-exam-page .strategy-example p {
  margin: 0 0 8px;
  color: #1f2545;
}

body.diffusion-exam-page .strategy-tips {
  margin: 0 0 14px 1.1rem;
  color: #1f2545;
  line-height: 1.55;
}

body.diffusion-exam-page .strategy-tips li {
  margin-bottom: 6px;
}

body.diffusion-exam-page .section-exam-frq .frq-scenario-card {
  margin-bottom: 12px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.05);
}

body.diffusion-exam-page .section-exam-frq .frq-scenario-card summary {
  padding: 16px 18px;
  font-weight: 800;
  color: #0a0f5a;
  cursor: pointer;
  background: #f8faff;
}

body.diffusion-exam-page .section-exam-frq .frq-scenario-card[open] summary {
  background: #eef2ff;
  border-bottom: 1px solid #e2e8f0;
}

body.diffusion-exam-page .section-exam-frq .frq-model {
  padding: 14px 18px 18px;
  border-left: 4px solid #f59e0b;
  background: #fffbeb;
  margin: 0 18px 18px;
  border-radius: 0 10px 10px 0;
}

body.diffusion-exam-page .read-preview-card {
  padding: 20px 22px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #f8faff;
}

body.diffusion-exam-page .read-preview-steps {
  margin: 12px 0 18px 1.25rem;
  color: #1f2545;
}

body.diffusion-exam-page .progress-widget-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

@media (max-width: 700px) {
  body.diffusion-exam-page .ap-skills-table thead,
  body.diffusion-exam-page .dtm-lookup-table thead {
    display: none;
  }

  body.diffusion-exam-page .ap-skills-table tr,
  body.diffusion-exam-page .dtm-lookup-table tr {
    display: block;
    margin-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
  }

  body.diffusion-exam-page .ap-skills-table td,
  body.diffusion-exam-page .dtm-lookup-table td {
    display: block;
    border: none;
    padding: 8px 14px;
  }

  body.diffusion-exam-page .ap-skills-table td::before,
  body.diffusion-exam-page .dtm-lookup-table td::before {
    content: attr(data-label);
    font-weight: 700;
    display: block;
    color: #0a0f5a;
    margin-bottom: 4px;
  }
}

/* Page 3 — Expansion diffusion spoke (compact hero) */
body.expansion-diffusion-page.diffusion-learning-hub .hero.unit-hero {
  padding-bottom: 0 !important;
}

body.expansion-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
  display: block !important;
  max-width: 1180px !important;
  padding: 28px 24px 24px !important;
}

body.expansion-diffusion-page.diffusion-learning-hub .hero.unit-hero .kicker {
  border: 1px solid rgba(255, 255, 255, 0.32);
}

body.expansion-diffusion-page .diffusion-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 400px);
  align-items: start;
  gap: 24px;
  margin-top: 4px;
}

body.expansion-diffusion-page .diffusion-hero-main {
  display: block !important;
  min-width: 0;
  /* Half line = 0.5 × lead font-size × line-height (0.96rem × 1.55) */
  --expansion-hero-half-line: calc(0.96rem * 1.55 * 0.5);
}

body.expansion-diffusion-page .hero.unit-hero h1 {
  margin-bottom: 12px !important;
  max-width: none;
  font-size: clamp(1.85rem, 3.6vw, 2.65rem) !important;
  line-height: 1.08 !important;
}

body.expansion-diffusion-page .diffusion-hero-title-line {
  display: block;
}

body.expansion-diffusion-page .diffusion-hero-hook {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 4px solid #ffd37a;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

body.expansion-diffusion-page .diffusion-hero-hook-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
}

body.expansion-diffusion-page .diffusion-hero-hook-icon-svg {
  width: 1.1rem;
  height: 1.1rem;
}

body.expansion-diffusion-page .diffusion-hero-hook-text {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.94);
}

body.expansion-diffusion-page .diffusion-hero-lead {
  margin: 0 0 var(--expansion-hero-half-line) !important;
  font-size: 0.96rem;
  line-height: 1.55;
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.9);
}

/* Overrides: .hero-ctas{margin-top:24px}, .hero.unit-hero .hero-ctas{margin:0 0 8px!important},
   body.diffusion-learning-hub .hero.unit-hero .hero-ctas{margin-bottom:12px} */
body.expansion-diffusion-page .hero.unit-hero .hero-ctas {
  margin-top: 0 !important;
  margin-bottom: var(--expansion-hero-half-line) !important;
  gap: 12px;
}

body.expansion-diffusion-page .hero.unit-hero .hero-ctas .btn {
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 800;
  border-radius: 999px;
}

body.expansion-diffusion-page .diffusion-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 !important;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
}

body.expansion-diffusion-page .diffusion-hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

body.expansion-diffusion-page .diffusion-hero-meta-icon {
  width: 0.95rem;
  height: 0.95rem;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.88);
}

body.expansion-diffusion-page .diffusion-hero-meta-divider {
  color: rgba(255, 255, 255, 0.42);
  font-weight: 300;
  user-select: none;
}

body.expansion-diffusion-page .diffusion-hero-aside {
  min-width: 0;
}

body.expansion-diffusion-page .diffusion-hero-figure {
  margin: 0 0 10px;
  width: 100%;
}

body.expansion-diffusion-page .diffusion-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  object-position: center;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
}

body.expansion-diffusion-page .diffusion-hero-banner-caption {
  margin-top: 8px;
}

body.expansion-diffusion-page .diffusion-hero-highlights-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

body.expansion-diffusion-page .diffusion-hero-panel-title {
  margin: 0 0 8px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffd37a;
}

body.expansion-diffusion-page .diffusion-hero-highlights-panel .diffusion-hero-highlights,
body.expansion-diffusion-page .diffusion-hero-highlights--pair {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

body.expansion-diffusion-page .diffusion-hero-highlights--pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 0;
}

body.expansion-diffusion-page .diffusion-hero-highlight-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

body.expansion-diffusion-page .diffusion-hero-highlight-box .diffusion-hero-highlights-marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 1px;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
  font-size: 0.7rem;
  font-weight: 800;
}

body.expansion-diffusion-page .diffusion-hero-highlights-marker--people {
  font-size: 0;
}

body.expansion-diffusion-page .diffusion-hero-highlights-marker-svg {
  width: 0.88rem;
  height: 0.88rem;
}

body.expansion-diffusion-page .diffusion-hero-highlight-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

body.expansion-diffusion-page .diffusion-hero-highlight-copy strong {
  color: #ffffff;
  font-size: 0.82rem;
  line-height: 1.25;
}

body.expansion-diffusion-page .diffusion-hero-highlight-box--mcqs .diffusion-hero-highlight-copy strong {
  font-size: 0.7rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

body.expansion-diffusion-page .diffusion-hero-highlight-detail {
  display: block;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.72rem;
  line-height: 1.32;
  font-weight: 500;
}

body.expansion-diffusion-page .diffusion-page1-callout {
  padding: 18px 22px;
  margin-left: auto;
  margin-right: auto;
}

body.expansion-diffusion-page .diffusion-page1-callout-next {
  margin: 10px 0 0;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.5;
}

body.expansion-diffusion-page .diffusion-page1-callout-next a {
  color: #1c2580;
  font-weight: 700;
}

body.expansion-diffusion-page .diffusion-key-ideas-card {
  border-radius: 16px;
  padding: 16px 18px;
  border: 1px solid #c7d2fe;
  background: linear-gradient(180deg, #f8faff 0%, #eef2ff 100%);
  box-shadow: 0 8px 22px rgba(10, 15, 90, 0.06);
}

body.expansion-diffusion-page .diffusion-key-ideas-title {
  margin: 0 0 10px;
  color: #0a0f5a;
  font-weight: 900;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

body.expansion-diffusion-page .diffusion-key-ideas-list {
  margin: 0;
  padding: 0 0 0 1.1rem;
  color: #1f2545;
  font-size: 0.92rem;
  line-height: 1.5;
}

body.expansion-diffusion-page .diffusion-key-ideas-list li {
  margin-bottom: 8px;
}

body.expansion-diffusion-page .diffusion-key-ideas-lead {
  margin: 0 0 10px;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.55;
}

body.expansion-diffusion-page .diffusion-key-ideas-links {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

body.expansion-diffusion-page .diffusion-key-ideas-links a {
  color: #1c2580;
  font-weight: 700;
}

body.expansion-diffusion-page .howto-step-glance {
  margin: 0 0 12px;
  padding: 10px 14px;
  border-radius: 10px;
  border-left: 4px solid #f59e0b;
  background: #fffbeb;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.45;
}

body.expansion-diffusion-page .howto-step-glance-label {
  font-weight: 800;
  color: #0a0f5a;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

body.expansion-diffusion-page .five-step-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0 8px;
}

body.expansion-diffusion-page .five-step-card {
  padding: 12px 10px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  text-align: center;
  box-shadow: 0 6px 16px rgba(10, 15, 90, 0.06);
}

body.expansion-diffusion-page .five-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  font-weight: 900;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

body.expansion-diffusion-page .five-step-card h4 {
  margin: 0 0 4px;
  color: #0a0f5a;
  font-size: 0.95rem;
}

body.expansion-diffusion-page .five-step-card p {
  margin: 0 0 8px;
  font-size: 0.8rem;
  color: #4a5276;
  line-height: 1.35;
}

body.expansion-diffusion-page .five-step-card .pyramid-figure {
  margin: 0 auto;
}

body.expansion-diffusion-page .five-step-card .pyramid-svg {
  width: 100%;
  max-width: 120px;
  height: auto;
  display: block;
  margin: 0 auto;
}

body.expansion-diffusion-page .howto-timing {
  margin-top: 4px;
}

body.expansion-diffusion-page .howto-step-section h2 {
  color: #0a0f5a;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin-top: 0;
}

body.expansion-diffusion-page .howto-one-sentence {
  padding: 12px 14px;
  border-left: 4px solid #ffd37a;
  background: #f8faff;
  border-radius: 0 12px 12px 0;
  color: #1f2545;
}

body.expansion-diffusion-page .howto-mistake-callout {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #1f2545;
  padding: 12px 14px;
  border-radius: 12px;
}

body.expansion-diffusion-page .country-walkthrough-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 12px;
}

body.expansion-diffusion-page .country-walkthrough-card {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(10, 15, 90, 0.06);
}

body.expansion-diffusion-page .country-walkthrough-card h3 {
  margin: 0 0 10px;
  color: #0a0f5a;
  font-size: 1.1rem;
}

body.expansion-diffusion-page .pyramid-figure {
  margin: 0 auto 12px;
  text-align: center;
}

body.expansion-diffusion-page .pyramid-svg {
  width: 100%;
  max-width: 280px;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
}

body.expansion-diffusion-page .pyramid-bar--hi {
  fill: #ffd37a !important;
  opacity: 0.95;
}

body.expansion-diffusion-page .walkthrough-table-wrap {
  overflow-x: auto;
}

body.expansion-diffusion-page .walkthrough-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

body.expansion-diffusion-page .walkthrough-table th,
body.expansion-diffusion-page .walkthrough-table td {
  border: 1px solid #e2e8f0;
  padding: 6px 8px;
  text-align: left;
  color: #1f2545;
}

body.expansion-diffusion-page .walkthrough-table thead th {
  background: #eef2ff;
  color: #0a0f5a;
}

body.expansion-diffusion-page .your-turn-section .your-turn-prompts {
  margin: 16px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

body.expansion-diffusion-page .your-turn-prompts li {
  display: grid;
  gap: 6px;
}

body.expansion-diffusion-page .your-turn-prompts label {
  font-weight: 700;
  color: #0a0f5a;
}

body.expansion-diffusion-page .your-turn-prompts textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #c7d2fe;
  font-family: inherit;
  font-size: 0.92rem;
  color: #1f2545;
  background: #ffffff;
  resize: vertical;
}

body.expansion-diffusion-page .your-turn-model {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #f0fdf4;
  border: 1px solid #86efac;
  color: #1f2545;
}

body.expansion-diffusion-page .your-turn-model ol {
  margin: 0 0 10px;
  padding-left: 1.2rem;
}

body.expansion-diffusion-page .howto-shape-preview {
  margin-top: 12px;
}

body.expansion-diffusion-page .shape-preview-card {
  text-align: center;
}

body.expansion-diffusion-page .shape-preview-card h4 {
  color: #0a0f5a;
  margin: 0 0 8px;
}

body.expansion-diffusion-page .shape-preview-card p {
  font-size: 0.85rem;
  color: #4a5276;
  margin: 8px 0 0;
}

body.expansion-diffusion-page .progress-widget-howto {
  border-color: #c7d2fe;
}

body.expansion-diffusion-page .diffusion-howto-figure {
  margin: 20px 0 24px;
}

body.expansion-diffusion-page .diffusion-howto-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  display: block;
}

body.expansion-diffusion-page .diffusion-howto-figure figcaption {
  text-align: center;
  margin-top: 8px;
  color: #4a5276;
  font-size: 0.88rem;
  line-height: 1.4;
}

@media (max-width: 1024px) {
  body.expansion-diffusion-page .five-step-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.expansion-diffusion-page .country-walkthrough-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body.expansion-diffusion-page .five-step-strip {
    grid-template-columns: 1fr;
  }
}

/* Expansion page — section UX refinements */
body.expansion-diffusion-page .journey-strip-grid--six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.expansion-diffusion-page .section-howto-quick {
  border-color: #fcd34d;
  box-shadow: 0 12px 32px rgba(245, 158, 11, 0.1);
}

body.expansion-diffusion-page .section--process {
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
}

body.expansion-diffusion-page .five-step-strip-hint {
  margin: 0 0 12px;
  font-size: 0.88rem;
}

body.expansion-diffusion-page a.five-step-card {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

body.expansion-diffusion-page a.five-step-card:hover,
body.expansion-diffusion-page a.five-step-card:focus-visible {
  border-color: #0a0f5a;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(10, 15, 90, 0.12);
  outline: none;
}

body.expansion-diffusion-page .howto-step-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

body.expansion-diffusion-page .howto-step-header h3 {
  margin: 0;
}

body.expansion-diffusion-page .howto-step-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  font-weight: 900;
  font-size: 1.1rem;
}

body.expansion-diffusion-page .howto-step-section {
  border-left: 4px solid #e2e8f0;
  padding-left: 22px;
}

body.expansion-diffusion-page .howto-step-section--1 {
  border-left-color: #f59e0b;
}

body.expansion-diffusion-page .howto-step-section--2 {
  border-left-color: #3b82f6;
}

body.expansion-diffusion-page .howto-step-section--3 {
  border-left-color: #6366f1;
}

body.expansion-diffusion-page .howto-step-section--4 {
  border-left-color: #8b5cf6;
}

body.expansion-diffusion-page .howto-step-section--5 {
  border-left-color: #10b981;
}

body.expansion-diffusion-page .howto-step-section h4 {
  margin-top: 18px;
  margin-bottom: 8px;
  color: #0a0f5a;
  font-size: 1rem;
}

body.expansion-diffusion-page .howto-step-section ul {
  margin: 0 0 14px;
  padding-left: 1.25rem;
  color: #1f2545;
  line-height: 1.55;
}

body.expansion-diffusion-page .subtype-card--contagious {
  border-top: 4px solid #3b82f6;
}

body.expansion-diffusion-page .subtype-card--hierarchical {
  border-top: 4px solid #8b5cf6;
}

body.expansion-diffusion-page .subtype-card--stimulus {
  border-top: 4px solid #10b981;
}

body.expansion-diffusion-page .country-walkthrough-card {
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

body.expansion-diffusion-page .country-walkthrough-card:hover {
  border-color: #c7d2fe;
  box-shadow: 0 14px 32px rgba(10, 15, 90, 0.1);
  transform: translateY(-2px);
}

body.expansion-diffusion-page .expansion-compare-table table.data th:nth-child(2),
body.expansion-diffusion-page .expansion-compare-table table.data td:nth-child(2) {
  background: rgba(238, 242, 255, 0.65);
}

body.expansion-diffusion-page .expansion-compare-table table.data th:nth-child(3),
body.expansion-diffusion-page .expansion-compare-table table.data td:nth-child(3) {
  background: rgba(255, 247, 237, 0.55);
}

body.expansion-diffusion-page .expansion-rule-callout {
  margin-top: 18px;
  padding: 16px 20px;
  border-radius: 14px;
  border: 2px solid #0a0f5a;
  background: linear-gradient(135deg, #eef2ff 0%, #fff7ed 100%);
  text-align: center;
  font-size: 1.05rem;
  line-height: 1.5;
  color: #1f2545;
}

body.expansion-diffusion-page .expansion-rule-callout strong {
  color: #0a0f5a;
}

body.expansion-diffusion-page .expansion-checklist {
  list-style: none;
  padding: 0;
  margin: 16px 0 18px;
  display: grid;
  gap: 10px;
  counter-reset: expansion-check;
}

body.expansion-diffusion-page .expansion-checklist li {
  position: relative;
  margin: 0;
  padding: 12px 14px 12px 46px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  background: #f8faff;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.5;
  counter-increment: expansion-check;
}

body.expansion-diffusion-page .expansion-checklist li::before {
  content: counter(expansion-check);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.5rem;
  text-align: center;
}

body.expansion-diffusion-page .your-turn-scenario {
  margin: 0 0 18px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px dashed #c7d2fe;
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
}

body.expansion-diffusion-page .your-turn-scenario p {
  margin: 0;
  color: #1f2545;
  line-height: 1.6;
  font-size: 0.98rem;
}

body.expansion-diffusion-page .your-turn-prompts textarea:focus {
  outline: none;
  border-color: #0a0f5a;
  box-shadow: 0 0 0 3px rgba(10, 15, 90, 0.12);
}

body.expansion-diffusion-page .section--practice .score-card {
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: #f8faff;
}

body.expansion-diffusion-page .question-box .option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  margin: 0 0 8px;
  border-radius: 12px;
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.45;
  cursor: pointer;
  transition:
    border-color 0.12s ease,
    background 0.12s ease;
}

body.expansion-diffusion-page .question-box .option:hover:not(:disabled) {
  border-color: #0a0f5a;
  background: #eef2ff;
}

body.expansion-diffusion-page .question-box .option.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #14532d;
}

body.expansion-diffusion-page .question-box .option.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #7f1d1d;
}

body.expansion-diffusion-page .question-box .option:disabled {
  cursor: default;
  opacity: 1;
}

body.expansion-diffusion-page .question-box .explanation {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8faff;
  border: 1px solid #dbe2f2;
  color: #1f2545;
  font-size: 0.92rem;
  line-height: 1.5;
}

body.expansion-diffusion-page #practiceNextBtn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

body.expansion-diffusion-page .study-loop-card {
  transition:
    border-color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

body.expansion-diffusion-page .study-loop-card:hover {
  border-color: #c7d2fe;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(10, 15, 90, 0.08);
}

body.expansion-diffusion-page .exam-tip-callout {
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #86efac;
  background: #f0fdf4;
  color: #1f2545;
}

body.expansion-diffusion-page .exam-tip-callout strong {
  color: #166534;
}

body.expansion-diffusion-page .howto-trap-grid,
body.expansion-diffusion-page .trap-grid-exam {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

body.expansion-diffusion-page .trap-card-exam {
  padding: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.05);
}

body.expansion-diffusion-page .trap-card-exam .trap-wrong,
body.expansion-diffusion-page .trap-card-exam .trap-better {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: 14px 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #1f2545;
}

body.expansion-diffusion-page .trap-card-exam .trap-wrong {
  background: #fef2f2;
  border-bottom: 1px solid #fecaca;
}

body.expansion-diffusion-page .trap-card-exam .trap-better {
  background: #f0fdf4;
}

body.expansion-diffusion-page .trap-label {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  font-weight: 900;
  font-size: 0.75rem;
}

body.expansion-diffusion-page .trap-label-wrong {
  background: #fecaca;
  color: #991b1b;
}

body.expansion-diffusion-page .trap-label-better {
  background: #86efac;
  color: #166534;
}

@media (max-width: 980px) {
  body.expansion-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
    display: block !important;
    padding: 24px 20px 20px !important;
  }

  body.expansion-diffusion-page.diffusion-learning-hub .diffusion-hero-main {
    display: block !important;
  }

  body.expansion-diffusion-page .diffusion-hero-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  body.expansion-diffusion-page .diffusion-hero-aside {
    max-width: 100%;
  }

  body.expansion-diffusion-page .hero.unit-hero h1 {
    max-width: none;
  }

  body.expansion-diffusion-page .journey-strip-grid--six {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  body.expansion-diffusion-page .diffusion-hero-highlights--pair {
    grid-template-columns: 1fr;
  }

  body.expansion-diffusion-page .journey-strip-grid--six {
    grid-template-columns: 1fr;
  }

  body.expansion-diffusion-page .howto-step-section {
    padding-left: 16px;
  }

  body.expansion-diffusion-page .howto-trap-grid,
  body.expansion-diffusion-page .trap-grid-exam {
    grid-template-columns: 1fr;
  }
}

/* —— Page 4: Types —— */
body.diffusion-types-page.diffusion-learning-hub .hero.unit-hero {
  padding: 6px 16px 14px !important;
  min-height: auto !important;
  max-height: none !important;
  overflow: visible !important;
}

body.diffusion-types-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-types-hero-inner {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 24rem);
  grid-template-areas:
    "crumb crumb"
    "kicker kicker"
    "main keypanel";
  padding: 10px 20px 18px !important;
  column-gap: 22px !important;
  row-gap: 0 !important;
  align-items: start !important;
}

body.diffusion-types-page .diffusion-types-hero-inner > .unit-breadcrumb {
  grid-area: crumb;
}

body.diffusion-types-page .diffusion-types-hero-inner > .kicker {
  grid-area: kicker;
  margin-bottom: 10px !important;
}

body.diffusion-types-page .diffusion-types-hero-inner > .diffusion-hero-main {
  grid-area: main;
  min-width: 0;
}

body.diffusion-types-page .diffusion-types-hero-inner > .diffusion-types-hero-visual {
  grid-area: keypanel;
}

body.diffusion-types-page .types-hero-visual-screen {
  padding: 12px 12px 10px;
  height: 100%;
  box-sizing: border-box;
}

body.diffusion-types-page .types-hero-visual-screen .keypanel-title {
  margin-bottom: 8px;
}

body.diffusion-types-page .diffusion-types-hero-figure {
  margin: 0;
}

body.diffusion-types-page .diffusion-types-hero-figure .pyramid-svg-types-hero {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

body.diffusion-types-page .types-hero-visual-caption {
  margin: 10px 0 0;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.42);
}

body.diffusion-learning-hub .hub-diffusion-hero-art figcaption {
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.42);
}

body.diffusion-types-page.diffusion-learning-hub .hero.unit-hero .unit-hero-keypanel {
  width: 100%;
  max-width: none;
  margin: 1rem 0 0;
  padding: 0;
  align-self: start;
  border: none;
  background: transparent;
  box-shadow: none;
}

body.diffusion-types-page.unit-v2 .hero.unit-hero .unit-hero-keypanel {
  display: block !important;
}

body.diffusion-types-page .types-glance-strip {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 16px;
}

body.diffusion-types-page .types-glance-strip-inner {
  padding: 20px 22px;
  border-radius: 18px;
  border: 1px solid #c7d2fe;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
  box-shadow: 0 10px 28px rgba(10, 15, 90, 0.06);
}

body.diffusion-types-page .types-glance-strip-title {
  margin: 0 0 6px;
  color: #0a0f5a;
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body.diffusion-types-page .types-glance-strip-lead {
  margin: 0 0 16px;
  color: #1f2545;
  font-size: 0.94rem;
  line-height: 1.5;
}

body.diffusion-types-page .types-glance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

body.diffusion-types-page .types-glance-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 12px 10px 14px;
  border-radius: 14px;
  border: 2px solid #e2e8f0;
  background: #ffffff;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

body.diffusion-types-page .types-glance-card:hover,
body.diffusion-types-page .types-glance-card:focus-visible {
  border-color: #1c2580;
  box-shadow: 0 10px 24px rgba(10, 15, 90, 0.1);
  transform: translateY(-2px);
  outline: none;
}

body.diffusion-types-page .types-glance-card--expansive {
  border-top: 4px solid #f59e0b;
}

body.diffusion-types-page .types-glance-card--stationary {
  border-top: 4px solid #3b82f6;
}

body.diffusion-types-page .types-glance-card--constrictive {
  border-top: 4px solid #8b5cf6;
}

body.diffusion-types-page .types-glance-card h3 {
  margin: 8px 0 4px;
  color: #0a0f5a;
  font-size: 1rem;
}

body.diffusion-types-page .types-glance-card p {
  margin: 0;
  color: #4a5276;
  font-size: 0.82rem;
}

body.diffusion-types-page .types-glance-stage {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef2ff;
  color: #1c2580;
  font-size: 0.72rem;
  font-weight: 800;
}

body.diffusion-types-page .types-glance-card .pyramid-figure {
  margin: 0;
  width: 100%;
  max-width: 140px;
}

body.diffusion-types-page .section-panel-shell {
  padding: 22px 22px 8px;
  border-radius: 18px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(10, 15, 90, 0.05);
  margin-bottom: 8px;
}

body.diffusion-types-page .section-panel-shell--quiz {
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
  border-color: #c7d2fe;
}

body.diffusion-types-page .type-deep-dive-shell {
  padding: 22px 22px 10px;
  border-radius: 20px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(10, 15, 90, 0.06);
}

body.diffusion-types-page .type-deep-dive--expansive .type-deep-dive-shell {
  border-top: 4px solid #f59e0b;
}

body.diffusion-types-page .type-deep-dive--stationary .type-deep-dive-shell {
  border-top: 4px solid #3b82f6;
}

body.diffusion-types-page .type-deep-dive--constrictive .type-deep-dive-shell {
  border-top: 4px solid #8b5cf6;
}

body.diffusion-types-page .type-deep-dive-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 18px;
}

body.diffusion-types-page .type-deep-dive-badge {
  padding: 5px 12px;
  border-radius: 999px;
  background: #0a0f5a;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

body.diffusion-types-page .type-deep-dive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(200px, 0.85fr);
  gap: 24px;
  align-items: start;
}

body.diffusion-types-page .type-deep-dive-visual {
  position: sticky;
  top: 96px;
  padding: 12px;
  border-radius: 16px;
  background: linear-gradient(180deg, #0e166b 0%, #0a0f5a 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

body.diffusion-types-page .type-deep-dive-visual .pyramid-figure {
  margin: 0;
}

body.diffusion-types-page .type-deep-dive-blocks {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

body.diffusion-types-page .type-block {
  padding: 12px 14px;
  border-radius: 12px;
  background: #f8faff;
  border: 1px solid #e8ecff;
}

body.diffusion-types-page .type-block h3 {
  margin: 0 0 6px;
  color: #0a0f5a;
  font-size: 0.95rem;
}

body.diffusion-types-page .type-block p {
  margin: 0;
  color: #1f2545;
  font-size: 0.92rem;
  line-height: 1.5;
}

body.diffusion-types-page .compare-type-card {
  padding: 14px 12px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #f8faff;
  text-align: center;
}

body.diffusion-types-page .compare-type-card--expansive {
  border-top: 3px solid #f59e0b;
}

body.diffusion-types-page .compare-type-card--stationary {
  border-top: 3px solid #3b82f6;
}

body.diffusion-types-page .compare-type-card--constrictive {
  border-top: 3px solid #8b5cf6;
}

body.diffusion-learning-hub .journey-chip.is-complete {
  border-color: #86efac;
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
}

body.diffusion-learning-hub .journey-chip.is-complete span {
  color: #166534;
}

body.diffusion-types-page .type-deep-dive h2 {
  color: #0a0f5a;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin-bottom: 16px;
}

body.diffusion-types-page .type-one-sentence {
  margin: 12px 0 20px;
  padding: 12px 14px;
  background: #f8faff;
  border-left: 4px solid #f59e0b;
  color: #1f2545;
  line-height: 1.5;
}

body.diffusion-types-page .type-predict {
  margin-top: 12px;
  color: #1f2545;
}

body.diffusion-types-page .type-country-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 20px;
}

body.diffusion-types-page .type-country-table th,
body.diffusion-types-page .type-country-table td {
  padding: 10px 12px;
  border: 1px solid #e2e8f0;
  text-align: left;
  color: #1f2545;
}

body.diffusion-types-page .compare-type-visuals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

body.diffusion-types-page .compare-type-card h4 {
  color: #0a0f5a;
  margin: 0 0 8px;
}

body.diffusion-types-page .compare-types-table-wrap {
  margin-top: 8px;
}

body.diffusion-types-page .compare-types-table {
  width: 100%;
  border-collapse: collapse;
}

body.diffusion-types-page .compare-types-table th,
body.diffusion-types-page .compare-types-table td {
  padding: 10px 12px;
  border: 1px solid #e2e8f0;
  color: #1f2545;
  font-size: 0.92rem;
}

body.diffusion-types-page .compare-types-table thead th {
  background: #0a0f5a;
  color: #ffffff;
}

body.diffusion-types-page .compare-types-table tbody th {
  background: #f8faff;
  font-weight: 700;
  color: #0a0f5a;
  position: sticky;
  left: 0;
  z-index: 1;
}

body.diffusion-types-page .dtm-mapping-strip {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0;
}

body.diffusion-types-page .dtm-strip-row {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(160px, 1.2fr) minmax(120px, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
}

body.diffusion-types-page .dtm-strip-type {
  margin: 6px 0 0;
  color: #1f2545;
  font-size: 0.9rem;
}

body.diffusion-types-page .dtm-strip-example {
  margin: 0;
  color: #1f2545;
  font-weight: 600;
}

body.diffusion-types-page .country-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

body.diffusion-types-page .country-case-card {
  padding: 16px;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(10, 15, 90, 0.05);
}

body.diffusion-types-page .country-case-card h4 {
  margin: 0 0 6px;
  color: #0a0f5a;
}

body.diffusion-types-page .case-type-badge,
body.diffusion-types-page .case-dtm-badge {
  display: inline-block;
  margin: 0 6px 10px 0;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
}

body.diffusion-types-page .case-type-badge {
  background: #eef2ff;
  color: #1c2580;
}

body.diffusion-types-page .case-dtm-badge {
  background: #fff7ed;
  color: #9a3412;
}

body.diffusion-types-page .country-case-card p {
  margin: 0 0 8px;
  color: #1f2545;
  font-size: 0.9rem;
  line-height: 1.45;
}

body.diffusion-types-page .matching-quiz-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

body.diffusion-types-page .matching-quiz-item {
  padding: 14px;
  border: 1px solid #c7d2fe;
  border-radius: 14px;
  background: #f8faff;
}

body.diffusion-types-page .matching-quiz-label {
  margin: 0 0 8px;
  font-weight: 800;
  color: #0a0f5a;
}

body.diffusion-types-page .matching-quiz-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

body.diffusion-types-page .matching-opt {
  flex: 1 1 auto;
  min-width: 100px;
  padding: 10px 12px;
  border: 2px solid #c7d2fe;
  border-radius: 10px;
  background: #ffffff;
  color: #0a0f5a;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
}

body.diffusion-types-page .matching-opt:hover,
body.diffusion-types-page .matching-opt:focus-visible {
  border-color: #1c2580;
  outline: none;
}

body.diffusion-types-page .matching-opt.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #166534;
}

body.diffusion-types-page .matching-opt.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #991b1b;
}

body.diffusion-types-page .matching-opt:disabled {
  cursor: default;
  opacity: 0.95;
}

body.diffusion-types-page .matching-feedback {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.45;
  color: #1f2545;
}

body.diffusion-types-page .matching-score {
  margin: 0 0 16px;
  color: #1f2545;
}

body.diffusion-types-page .mini-course-complete {
  padding: 24px;
  border-radius: 20px;
  border: 2px solid #86efac;
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 55%);
  text-align: center;
}

body.diffusion-types-page .mini-course-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}

body.diffusion-types-page .mini-course-badge {
  padding: 6px 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid #c7d2fe;
  font-size: 0.82rem;
  font-weight: 700;
  color: #1f2545;
}

body.diffusion-types-page .mini-course-badge.is-done {
  border-color: #86efac;
  background: #f0fdf4;
  color: #166534;
}

body.diffusion-types-page .mini-course-badge.is-here {
  border-color: #f59e0b;
  background: #fffbeb;
  color: #92400e;
}

body.diffusion-types-page .mini-course-revisit {
  margin: 16px auto;
  max-width: 28rem;
  text-align: left;
}

body.diffusion-types-page .mini-course-revisit ul {
  margin: 8px 0 0;
  padding-left: 1.2rem;
  color: #1f2545;
}

body.diffusion-types-page .progress-widget-types {
  border-color: #86efac;
}

@media (max-width: 980px) {
  body.diffusion-types-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-types-hero-inner {
    display: flex !important;
    flex-direction: column !important;
    padding: 12px 16px 20px !important;
  }

  body.diffusion-types-page .diffusion-types-hero-inner > .diffusion-types-hero-visual {
    display: block !important;
    max-width: none;
    margin-top: var(--space-4);
  }

  body.diffusion-types-page .types-glance-grid,
  body.diffusion-types-page .compare-type-visuals,
  body.diffusion-types-page .country-case-grid {
    grid-template-columns: 1fr;
  }

  body.diffusion-types-page .type-deep-dive-grid {
    grid-template-columns: 1fr;
  }

  body.diffusion-types-page .type-deep-dive-visual {
    position: static;
    order: -1;
    max-width: 280px;
    margin: 0 auto 16px;
  }

  body.diffusion-types-page .dtm-strip-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  body.diffusion-types-page .matching-quiz-grid {
    grid-template-columns: 1fr;
  }
}

/* —— Contagious diffusion spoke (Step 4) —— */
body.contagious-diffusion-page.diffusion-learning-hub .hero.unit-hero {
  padding-bottom: 0 !important;
}

body.contagious-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
  display: block !important;
  max-width: 1180px !important;
  padding: 28px 24px 24px !important;
}

body.contagious-diffusion-page .diffusion-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 400px);
  align-items: start;
  gap: 24px;
  margin-top: 4px;
}

body.contagious-diffusion-page .diffusion-hero-main {
  display: block !important;
  min-width: 0;
  --expansion-hero-half-line: calc(0.96rem * 1.55 * 0.5);
}

body.contagious-diffusion-page .hero.unit-hero h1 {
  margin-bottom: 12px !important;
  max-width: none;
  font-size: clamp(1.85rem, 3.6vw, 2.65rem) !important;
  line-height: 1.08 !important;
}

body.contagious-diffusion-page .diffusion-hero-title-line {
  display: block;
}

body.contagious-diffusion-page .diffusion-hero-hook {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 4px solid #ffd37a;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

body.contagious-diffusion-page .diffusion-hero-hook-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
}

body.contagious-diffusion-page .diffusion-hero-hook-icon-svg {
  width: 1.1rem;
  height: 1.1rem;
}

body.contagious-diffusion-page .diffusion-hero-hook-text {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.94);
}

body.contagious-diffusion-page .diffusion-hero-lead {
  margin: 0 0 var(--expansion-hero-half-line) !important;
  font-size: 0.96rem;
  line-height: 1.55;
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.9);
}

body.expansion-diffusion-page .diffusion-hero-eeat,
body.contagious-diffusion-page .diffusion-hero-eeat {
  margin: var(--expansion-hero-half-line) 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.78);
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas {
  margin-top: 0 !important;
  margin-bottom: var(--expansion-hero-half-line) !important;
  gap: 12px;
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn {
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 800;
  border-radius: 999px;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:hover,
body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:hover,
body.contagious-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:focus-visible {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  transform: translateY(-1px);
}

body.contagious-diffusion-page .diffusion-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 !important;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
}

body.contagious-diffusion-page .diffusion-hero-aside {
  min-width: 0;
}

body.contagious-diffusion-page .diffusion-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}

body.contagious-diffusion-page.diffusion-learning-hub .hero.unit-hero .kicker {
  border: 1px solid rgba(255, 255, 255, 0.32);
}

body.contagious-diffusion-page .diffusion-hero-highlights-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

body.contagious-diffusion-page .diffusion-hero-panel-title {
  margin: 0 0 8px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffd37a;
}

body.contagious-diffusion-page .diffusion-hero-highlights-panel .diffusion-hero-highlights,
body.contagious-diffusion-page .diffusion-hero-highlights--pair {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

body.contagious-diffusion-page .diffusion-hero-highlights--pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 0;
}

body.contagious-diffusion-page .diffusion-hero-highlight-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

body.contagious-diffusion-page .diffusion-hero-highlight-box .diffusion-hero-highlights-marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 1px;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
  font-size: 0.7rem;
  font-weight: 800;
}

body.contagious-diffusion-page .diffusion-hero-highlights-marker--people {
  font-size: 0;
}

body.contagious-diffusion-page .diffusion-hero-highlights-marker-svg {
  width: 0.88rem;
  height: 0.88rem;
}

body.contagious-diffusion-page .diffusion-hero-highlight-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

body.contagious-diffusion-page .diffusion-hero-highlight-copy strong {
  color: #ffffff;
  font-size: 0.82rem;
  line-height: 1.25;
}

body.contagious-diffusion-page .diffusion-hero-highlight-box--mcqs .diffusion-hero-highlight-copy strong {
  font-size: 0.7rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

body.contagious-diffusion-page .diffusion-hero-highlight-detail {
  display: block;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.72rem;
  line-height: 1.32;
  font-weight: 500;
}

body.contagious-diffusion-page .contact-flow-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0;
}

body.contagious-diffusion-page .contact-flow-card {
  padding: 14px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  text-align: center;
}

body.contagious-diffusion-page .contact-flow-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
  color: #1c2580;
}

body.contagious-diffusion-page .contact-flow-svg {
  width: 48px;
  height: 48px;
}

body.contagious-diffusion-page .contact-flow-label {
  margin: 0;
  color: #1f2545;
  font-size: 0.82rem;
  line-height: 1.4;
}

body.contagious-diffusion-page .contact-flow-label span {
  display: block;
  font-weight: 500;
  color: #4a5276;
}

body.contagious-diffusion-page .examples-yesno-table .cell-yes {
  color: #166534;
  font-weight: 700;
}

body.contagious-diffusion-page .examples-yesno-table .cell-no {
  color: #991b1b;
  font-weight: 700;
}

body.contagious-diffusion-page .yesno-mark--yes {
  color: #16a34a;
}

body.contagious-diffusion-page .yesno-mark--no {
  color: #dc2626;
}

body.contagious-diffusion-page .sorter-stack {
  display: grid;
  gap: 16px;
}

body.contagious-diffusion-page .sorter-card {
  padding: 16px;
  border: 1px solid #c7d2fe;
  border-radius: 14px;
  background: #f8faff;
}

body.contagious-diffusion-page .sorter-scenario {
  margin: 0 0 12px;
  color: #1f2545;
  line-height: 1.5;
}

body.contagious-diffusion-page .sorter-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

body.contagious-diffusion-page .sorter-pick.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #166534;
}

body.contagious-diffusion-page .sorter-pick.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #991b1b;
}

body.contagious-diffusion-page .sorter-reveal {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #86efac;
  color: #1f2545;
}

body.contagious-diffusion-page .sorter-reveal.hidden {
  display: none;
}

body.contagious-diffusion-page .sorter-score {
  font-weight: 800;
  color: #0a0f5a;
  margin-bottom: 12px;
}

body.contagious-diffusion-page .progress-widget-contagious {
  border: 1px solid rgba(199, 210, 254, 0.35);
  box-shadow: 0 18px 44px rgba(10, 15, 90, 0.24);
}

body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-blue {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-blue:hover,
body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-blue:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
}

body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  color: #ffffff;
  background: transparent;
  font-weight: 800;
}

body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-outline:hover,
body.contagious-diffusion-page .progress-widget-contagious .progress-widget-cta .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  color: #ffffff;
}

body.contagious-diffusion-page .diffusion-sticky-menu a {
  font-weight: 700;
  color: #4a5276;
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease;
}

body.contagious-diffusion-page .diffusion-sticky-menu a:hover,
body.contagious-diffusion-page .diffusion-sticky-menu a:focus-visible {
  border-color: #a5b4fc;
  background: #eef2ff;
  color: #0a0f5a;
}

body.contagious-diffusion-page .diffusion-sticky-menu a.is-active {
  border-color: #0a0f5a;
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(10, 15, 90, 0.2);
}

body.contagious-diffusion-page .quick-answer-btns a {
  border-color: #c7d2fe;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.04);
}

body.contagious-diffusion-page .quick-answer-btns a:hover,
body.contagious-diffusion-page .quick-answer-btns a:focus-visible {
  border-color: #1c2580;
  background: #eef2ff;
  color: #0a0f5a !important;
}

body.contagious-diffusion-page .journey-chip.is-here {
  border-color: #f59e0b;
  background: linear-gradient(145deg, #fffbeb 0%, #ffffff 60%);
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.18);
}

body.contagious-diffusion-page .journey-chip.is-here em {
  color: #b45309;
}

body.contagious-diffusion-page .sorter-pick {
  padding: 9px 16px;
  border-radius: 999px;
  border: 1.5px solid #c7d2fe;
  background: #ffffff;
  color: #0a0f5a;
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  transition:
    border-color 0.12s ease,
    background 0.12s ease,
    color 0.12s ease,
    transform 0.12s ease;
}

body.contagious-diffusion-page .sorter-pick:hover:not(:disabled) {
  border-color: #1c2580;
  background: #eef2ff;
  transform: translateY(-1px);
}

body.contagious-diffusion-page .sorter-pick:disabled {
  cursor: default;
  opacity: 0.72;
}

body.contagious-diffusion-page .section--practice .score-card {
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
}

body.contagious-diffusion-page .question-box .option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  margin: 0 0 8px;
  border-radius: 12px;
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.45;
  cursor: pointer;
  transition:
    border-color 0.12s ease,
    background 0.12s ease;
}

body.contagious-diffusion-page .question-box .option:hover:not(:disabled) {
  border-color: #1c2580;
  background: #eef2ff;
}

body.contagious-diffusion-page .question-box .option.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #14532d;
  font-weight: 700;
}

body.contagious-diffusion-page .question-box .option.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #7f1d1d;
  font-weight: 700;
}

body.contagious-diffusion-page .question-box .option:disabled {
  cursor: default;
  opacity: 1;
}

body.contagious-diffusion-page .question-box .explanation {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8faff;
  border: 1px solid #dbe2f2;
  color: #1f2545;
}

body.contagious-diffusion-page .controls .btn-primary {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.2);
}

body.contagious-diffusion-page .controls .btn-primary:hover:not(:disabled),
body.contagious-diffusion-page .controls .btn-primary:focus-visible:not(:disabled) {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.contagious-diffusion-page .controls .btn-primary:disabled {
  background: #94a3b8;
  color: #ffffff;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.85;
}

body.contagious-diffusion-page .controls .btn:not(.btn-primary) {
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  color: #4a5276;
  font-weight: 700;
}

body.contagious-diffusion-page .controls .btn:not(.btn-primary):hover,
body.contagious-diffusion-page .controls .btn:not(.btn-primary):focus-visible {
  border-color: #c7d2fe;
  background: #f8faff;
  color: #0a0f5a;
}

body.contagious-diffusion-page .main-wrap .btn-primary,
body.contagious-diffusion-page .final-content-loop .btn-primary,
body.contagious-diffusion-page .micro-conversions .btn-primary {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.18);
}

body.contagious-diffusion-page .main-wrap .btn-primary:hover,
body.contagious-diffusion-page .final-content-loop .btn-primary:hover,
body.contagious-diffusion-page .micro-conversions .btn-primary:hover,
body.contagious-diffusion-page .main-wrap .btn-primary:focus-visible,
body.contagious-diffusion-page .final-content-loop .btn-primary:focus-visible,
body.contagious-diffusion-page .micro-conversions .btn-primary:focus-visible {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.contagious-diffusion-page .main-wrap .btn-blue {
  background: #eef2ff;
  color: #0a0f5a;
  border: 1.5px solid #c7d2fe;
  font-weight: 800;
}

body.contagious-diffusion-page .main-wrap .btn-blue:hover,
body.contagious-diffusion-page .main-wrap .btn-blue:focus-visible {
  background: #e0e7ff;
  border-color: #a5b4fc;
  color: #0a0f5a;
}

body.contagious-diffusion-page .journey-strip-grid--six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 980px) {
  body.contagious-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
    display: block !important;
    padding: 24px 20px 20px !important;
  }

  body.contagious-diffusion-page .diffusion-hero-main {
    display: block !important;
  }

  body.contagious-diffusion-page .diffusion-hero-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  body.contagious-diffusion-page .diffusion-hero-aside {
    max-width: 100%;
  }

  body.contagious-diffusion-page .contact-flow-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.contagious-diffusion-page .diffusion-hero-highlights--pair {
    grid-template-columns: 1fr;
  }

  body.contagious-diffusion-page .diffusion-hero-highlight-box--mcqs .diffusion-hero-highlight-copy strong {
    font-size: 0.82rem;
    letter-spacing: 0;
  }
}

body.contagious-diffusion-page .diffusion-section-finish {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid #e8ecf4;
}

body.contagious-diffusion-page .diffusion-section-finish-btn {
  min-width: 7.5rem;
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.86rem;
  color: #0a0f5a;
  border: 1.5px solid #a5b4fc;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.06);
  transition:
    border-color 0.12s ease,
    background 0.12s ease,
    color 0.12s ease,
    box-shadow 0.12s ease;
}

body.contagious-diffusion-page .diffusion-section-finish-btn:hover {
  border-color: #1c2580;
  background: #eef2ff;
  box-shadow: 0 4px 12px rgba(10, 15, 90, 0.1);
}

body.contagious-diffusion-page .diffusion-section-finish-btn:focus-visible {
  outline: 2px solid #1c2580;
  outline-offset: 2px;
}

body.contagious-diffusion-page .diffusion-section-finish-btn.is-done {
  color: #166534;
  border-color: #4ade80;
  background: #ecfdf5;
  box-shadow: none;
  cursor: default;
}

body.contagious-diffusion-page .diffusion-section-finish-btn.is-done:hover {
  border-color: #4ade80;
  background: #ecfdf5;
}

body.contagious-diffusion-page .diffusion-section-next {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
  color: #1c2580;
  text-decoration: none;
  background: #f8faff;
  border: 1px solid #e0e7ff;
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease;
}

body.contagious-diffusion-page .diffusion-section-next:hover,
body.contagious-diffusion-page .diffusion-section-next:focus-visible {
  color: #0a0f5a;
  background: #eef2ff;
  border-color: #c7d2fe;
  text-decoration: none;
}

@media (max-width: 640px) {
  body.contagious-diffusion-page .contact-flow-strip {
    grid-template-columns: 1fr;
  }

  body.contagious-diffusion-page .diffusion-section-finish {
    flex-direction: column;
    align-items: stretch;
  }

  body.contagious-diffusion-page .diffusion-section-next {
    text-align: center;
  }
}

/* --- Hierarchical diffusion spoke (mirrors contagious page patterns) --- */
body.hierarchical-diffusion-page.diffusion-learning-hub .hero.unit-hero {
  padding-bottom: 0 !important;
}

body.hierarchical-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
  display: block !important;
  max-width: 1180px !important;
  padding: 28px 24px 24px !important;
}

body.hierarchical-diffusion-page .diffusion-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 400px);
  align-items: start;
  gap: 24px;
  margin-top: 4px;
}

body.hierarchical-diffusion-page .diffusion-hero-main {
  display: block !important;
  min-width: 0;
  --expansion-hero-half-line: calc(0.96rem * 1.55 * 0.5);
}

body.hierarchical-diffusion-page .hero.unit-hero h1 {
  margin-bottom: 12px !important;
  max-width: none;
  font-size: clamp(1.85rem, 3.6vw, 2.65rem) !important;
  line-height: 1.08 !important;
}

body.hierarchical-diffusion-page .diffusion-hero-title-line {
  display: block;
}

body.hierarchical-diffusion-page .diffusion-hero-hook {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 4px solid #ffd37a;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

body.hierarchical-diffusion-page .diffusion-hero-hook-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
}

body.hierarchical-diffusion-page .diffusion-hero-hook-icon-svg {
  width: 1.1rem;
  height: 1.1rem;
}

body.hierarchical-diffusion-page .diffusion-hero-hook-text {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.94);
}

body.hierarchical-diffusion-page .diffusion-hero-lead {
  margin: 0 0 var(--expansion-hero-half-line) !important;
  font-size: 0.96rem;
  line-height: 1.55;
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.9);
}

body.expansion-diffusion-page .diffusion-hero-eeat,
body.hierarchical-diffusion-page .diffusion-hero-eeat {
  margin: var(--expansion-hero-half-line) 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.78);
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas {
  margin-top: 0 !important;
  margin-bottom: var(--expansion-hero-half-line) !important;
  gap: 12px;
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn {
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 800;
  border-radius: 999px;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:hover,
body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:hover,
body.hierarchical-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:focus-visible {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  transform: translateY(-1px);
}

body.hierarchical-diffusion-page .diffusion-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 !important;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
}

body.hierarchical-diffusion-page .diffusion-hero-aside {
  min-width: 0;
}

body.hierarchical-diffusion-page .diffusion-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}

body.hierarchical-diffusion-page.diffusion-learning-hub .hero.unit-hero .kicker {
  border: 1px solid rgba(255, 255, 255, 0.32);
}

body.hierarchical-diffusion-page .diffusion-hero-highlights-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

body.hierarchical-diffusion-page .diffusion-hero-panel-title {
  margin: 0 0 8px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffd37a;
}

body.hierarchical-diffusion-page .diffusion-hero-highlights-panel .diffusion-hero-highlights,
body.hierarchical-diffusion-page .diffusion-hero-highlights--pair {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

body.hierarchical-diffusion-page .diffusion-hero-highlights--pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 0;
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-box .diffusion-hero-highlights-marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 1px;
  border-radius: 50%;
  background: rgba(255, 211, 122, 0.22);
  color: #ffd37a;
  font-size: 0.7rem;
  font-weight: 800;
}

body.hierarchical-diffusion-page .diffusion-hero-highlights-marker--people {
  font-size: 0;
}

body.hierarchical-diffusion-page .diffusion-hero-highlights-marker-svg {
  width: 0.88rem;
  height: 0.88rem;
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-copy strong {
  color: #ffffff;
  font-size: 0.82rem;
  line-height: 1.25;
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-box--mcqs .diffusion-hero-highlight-copy strong {
  font-size: 0.7rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

body.hierarchical-diffusion-page .diffusion-hero-highlight-detail {
  display: block;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.72rem;
  line-height: 1.32;
  font-weight: 500;
}

body.hierarchical-diffusion-page .influence-flow-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0;
}

body.hierarchical-diffusion-page .influence-flow-card {
  display: block;
  width: 100%;
  margin: 0;
  padding: 14px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  text-align: center;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease,
    transform 0.12s ease;
}

body.hierarchical-diffusion-page .influence-flow-card:hover,
body.hierarchical-diffusion-page .influence-flow-card:focus-visible {
  border-color: #1c2580;
  background: #eef2ff;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.08);
  transform: translateY(-1px);
  outline: none;
}

body.hierarchical-diffusion-page .influence-flow-card:focus-visible {
  outline: 2px solid #1c2580;
  outline-offset: 2px;
}

body.hierarchical-diffusion-page .influence-flow-card.is-reviewed {
  border-color: #16a34a;
  background: #f0fdf4;
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.12);
  transform: none;
}

body.hierarchical-diffusion-page .influence-flow-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
  color: #1c2580;
}

body.hierarchical-diffusion-page .influence-flow-svg {
  width: 48px;
  height: 48px;
}

body.hierarchical-diffusion-page .influence-flow-label {
  margin: 0;
  color: #1f2545;
  font-size: 0.82rem;
  line-height: 1.4;
}

body.hierarchical-diffusion-page .influence-flow-label span {
  display: block;
  font-weight: 500;
  color: #4a5276;
}

body.hierarchical-diffusion-page .examples-yesno-table .cell-yes {
  color: #166534;
  font-weight: 700;
}

body.hierarchical-diffusion-page .examples-yesno-table .cell-no {
  color: #991b1b;
  font-weight: 700;
}

body.hierarchical-diffusion-page .yesno-mark--yes {
  color: #16a34a;
}

body.hierarchical-diffusion-page .yesno-mark--no {
  color: #dc2626;
}

body.hierarchical-diffusion-page .sorter-stack {
  display: grid;
  gap: 16px;
}

body.hierarchical-diffusion-page .sorter-card {
  padding: 16px;
  border: 1px solid #c7d2fe;
  border-radius: 14px;
  background: #f8faff;
}

body.hierarchical-diffusion-page .sorter-scenario {
  margin: 0 0 12px;
  color: #1f2545;
  line-height: 1.5;
}

body.hierarchical-diffusion-page .sorter-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

body.hierarchical-diffusion-page .sorter-pick.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #166534;
}

body.hierarchical-diffusion-page .sorter-pick.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #991b1b;
}

body.hierarchical-diffusion-page .sorter-reveal {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #86efac;
  color: #1f2545;
}

body.hierarchical-diffusion-page .sorter-reveal.hidden {
  display: none;
}

body.hierarchical-diffusion-page .sorter-score {
  font-weight: 800;
  color: #0a0f5a;
  margin-bottom: 12px;
}

body.hierarchical-diffusion-page .progress-widget-hierarchical {
  border: 1px solid rgba(199, 210, 254, 0.35);
  box-shadow: 0 18px 44px rgba(10, 15, 90, 0.24);
}

body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-blue {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-blue:hover,
body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-blue:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
}

body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  color: #ffffff;
  background: transparent;
  font-weight: 800;
}

body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-outline:hover,
body.hierarchical-diffusion-page .progress-widget-hierarchical .progress-widget-cta .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  color: #ffffff;
}

body.hierarchical-diffusion-page .diffusion-sticky-menu a {
  font-weight: 700;
  color: #4a5276;
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease;
}

body.hierarchical-diffusion-page .diffusion-sticky-menu a:hover,
body.hierarchical-diffusion-page .diffusion-sticky-menu a:focus-visible {
  border-color: #a5b4fc;
  background: #eef2ff;
  color: #0a0f5a;
}

body.hierarchical-diffusion-page .diffusion-sticky-menu a.is-active {
  border-color: #0a0f5a;
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(10, 15, 90, 0.2);
}

body.hierarchical-diffusion-page .quick-answer-btns a {
  border-color: #c7d2fe;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.04);
}

body.hierarchical-diffusion-page .quick-answer-btns a:hover,
body.hierarchical-diffusion-page .quick-answer-btns a:focus-visible {
  border-color: #1c2580;
  background: #eef2ff;
  color: #0a0f5a !important;
}

body.hierarchical-diffusion-page .journey-chip.is-here {
  border-color: #f59e0b;
  background: linear-gradient(145deg, #fffbeb 0%, #ffffff 60%);
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.18);
}

body.hierarchical-diffusion-page .journey-chip.is-here em {
  color: #b45309;
}

body.hierarchical-diffusion-page .sorter-pick {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1.5px solid #c7d2fe;
  background: #ffffff;
  color: #0a0f5a;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.25;
  cursor: pointer;
  transition:
    border-color 0.12s ease,
    background 0.12s ease,
    color 0.12s ease,
    transform 0.12s ease;
}

body.hierarchical-diffusion-page .sorter-pick:hover:not(:disabled) {
  border-color: #1c2580;
  background: #eef2ff;
  transform: translateY(-1px);
}

body.hierarchical-diffusion-page .sorter-pick:disabled {
  cursor: default;
  opacity: 0.72;
}

body.hierarchical-diffusion-page .section--practice .score-card {
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
}

body.hierarchical-diffusion-page .question-box .option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  margin: 0 0 8px;
  border-radius: 12px;
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  color: #1f2545;
  font-size: 0.95rem;
  line-height: 1.45;
  cursor: pointer;
  transition:
    border-color 0.12s ease,
    background 0.12s ease;
}

body.hierarchical-diffusion-page .question-box .option:hover:not(:disabled) {
  border-color: #1c2580;
  background: #eef2ff;
}

body.hierarchical-diffusion-page .question-box .option.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #14532d;
  font-weight: 700;
}

body.hierarchical-diffusion-page .question-box .option.wrong {
  border-color: #dc2626;
  background: #fef2f2;
  color: #7f1d1d;
  font-weight: 700;
}

body.hierarchical-diffusion-page .question-box .option:disabled {
  cursor: default;
  opacity: 1;
}

body.hierarchical-diffusion-page .question-box .explanation {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8faff;
  border: 1px solid #dbe2f2;
  color: #1f2545;
}

body.hierarchical-diffusion-page .controls .btn-primary {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.2);
}

body.hierarchical-diffusion-page .controls .btn-primary:hover:not(:disabled),
body.hierarchical-diffusion-page .controls .btn-primary:focus-visible:not(:disabled) {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.hierarchical-diffusion-page .controls .btn-primary:disabled {
  background: #94a3b8;
  color: #ffffff;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.85;
}

body.hierarchical-diffusion-page .controls .btn:not(.btn-primary) {
  border: 1.5px solid #e2e8f0;
  background: #ffffff;
  color: #4a5276;
  font-weight: 700;
}

body.hierarchical-diffusion-page .controls .btn:not(.btn-primary):hover,
body.hierarchical-diffusion-page .controls .btn:not(.btn-primary):focus-visible {
  border-color: #c7d2fe;
  background: #f8faff;
  color: #0a0f5a;
}

body.hierarchical-diffusion-page .main-wrap .btn-primary,
body.hierarchical-diffusion-page .final-content-loop .btn-primary,
body.hierarchical-diffusion-page .micro-conversions .btn-primary {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.18);
}

body.hierarchical-diffusion-page .main-wrap .btn-primary:hover,
body.hierarchical-diffusion-page .final-content-loop .btn-primary:hover,
body.hierarchical-diffusion-page .micro-conversions .btn-primary:hover,
body.hierarchical-diffusion-page .main-wrap .btn-primary:focus-visible,
body.hierarchical-diffusion-page .final-content-loop .btn-primary:focus-visible,
body.hierarchical-diffusion-page .micro-conversions .btn-primary:focus-visible {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.hierarchical-diffusion-page .main-wrap .btn-blue {
  background: #eef2ff;
  color: #0a0f5a;
  border: 1.5px solid #c7d2fe;
  font-weight: 800;
}

body.hierarchical-diffusion-page .main-wrap .btn-blue:hover,
body.hierarchical-diffusion-page .main-wrap .btn-blue:focus-visible {
  background: #e0e7ff;
  border-color: #a5b4fc;
  color: #0a0f5a;
}

body.hierarchical-diffusion-page .journey-strip-grid--six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 980px) {
  body.hierarchical-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
    display: block !important;
    padding: 24px 20px 20px !important;
  }

  body.hierarchical-diffusion-page .diffusion-hero-main {
    display: block !important;
  }

  body.hierarchical-diffusion-page .diffusion-hero-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  body.hierarchical-diffusion-page .diffusion-hero-aside {
    max-width: 100%;
  }

  body.hierarchical-diffusion-page .influence-flow-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.hierarchical-diffusion-page .diffusion-hero-highlights--pair {
    grid-template-columns: 1fr;
  }

  body.hierarchical-diffusion-page .diffusion-hero-highlight-box--mcqs .diffusion-hero-highlight-copy strong {
    font-size: 0.82rem;
    letter-spacing: 0;
  }
}

body.hierarchical-diffusion-page .diffusion-section-finish {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid #e8ecf4;
}

body.hierarchical-diffusion-page .diffusion-section-finish-btn {
  min-width: 7.5rem;
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.86rem;
  line-height: 1.2;
  color: #0a0f5a;
  border: 1.5px solid #a5b4fc;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.06);
  cursor: pointer;
  appearance: none;
  transition:
    border-color 0.12s ease,
    background 0.12s ease,
    color 0.12s ease,
    box-shadow 0.12s ease,
    transform 0.12s ease;
}

body.hierarchical-diffusion-page .diffusion-section-finish-btn:hover {
  border-color: #1c2580;
  background: #eef2ff;
  color: #0a0f5a;
  box-shadow: 0 4px 12px rgba(10, 15, 90, 0.1);
  transform: translateY(-1px);
}

body.hierarchical-diffusion-page .diffusion-section-finish-btn:focus-visible {
  outline: 2px solid #1c2580;
  outline-offset: 2px;
}

body.hierarchical-diffusion-page .diffusion-section-finish-btn.is-done {
  color: #166534;
  border-color: #4ade80;
  background: #ecfdf5;
  box-shadow: none;
  cursor: default;
}

body.hierarchical-diffusion-page .diffusion-section-finish-btn.is-done:hover {
  border-color: #4ade80;
  background: #ecfdf5;
}

body.hierarchical-diffusion-page .diffusion-section-next {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
  color: #1c2580;
  text-decoration: none;
  background: #f8faff;
  border: 1px solid #e0e7ff;
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease;
}

body.hierarchical-diffusion-page .diffusion-section-next:hover,
body.hierarchical-diffusion-page .diffusion-section-next:focus-visible {
  color: #0a0f5a;
  background: #eef2ff;
  border-color: #c7d2fe;
  text-decoration: none;
}

@media (max-width: 640px) {
  body.hierarchical-diffusion-page .influence-flow-strip {
    grid-template-columns: 1fr;
  }

  body.hierarchical-diffusion-page .diffusion-section-finish {
    flex-direction: column;
    align-items: stretch;
  }

  body.hierarchical-diffusion-page .diffusion-section-next {
    text-align: center;
  }
}

body.hierarchical-diffusion-page .diffusion-hero-highlights--triple {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

body.hierarchical-diffusion-page .reverse-examples-table .reverse-example-row {
  cursor: pointer;
  transition: background 0.15s ease;
}

body.hierarchical-diffusion-page .reverse-examples-table .reverse-example-row:hover,
body.hierarchical-diffusion-page .reverse-examples-table .reverse-example-row:focus-visible {
  background: #eef2ff;
  outline: none;
}

body.hierarchical-diffusion-page .reverse-examples-table .reverse-example-row.is-opened {
  background: #f0fdf4;
}

body.hierarchical-diffusion-page .reverse-examples-table .reverse-example-row.is-opened td {
  color: #14532d;
}

body.hierarchical-diffusion-page .quick-answer-btns a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.86rem;
  text-decoration: none;
}

body.hierarchical-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.2);
}

body.hierarchical-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:hover:not(:disabled),
body.hierarchical-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:focus-visible:not(:disabled) {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.hierarchical-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:disabled {
  background: #94a3b8;
  color: #ffffff;
  opacity: 1;
}

@media (max-width: 700px) {
  body.hierarchical-diffusion-page .influence-flow-strip {
    grid-template-columns: 1fr;
  }
}

/* —— Stimulus diffusion spoke (Step 6) —— */
body.stimulus-diffusion-page .pyramids-hero-h2-wrap {
  padding: 20px 24px 8px;
  background: #f8faff;
  border-bottom: 1px solid #e2e8f0;
}

body.stimulus-diffusion-page .pyramids-hero-h2-wrap h2 {
  margin: 0 auto;
  max-width: 920px;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 900;
  color: #0a0f5a;
  line-height: 1.25;
}

body.stimulus-diffusion-page.diffusion-learning-hub .hero.unit-hero {
  background: linear-gradient(165deg, #0a0f5a 0%, #1c2580 48%, #2a35a3 100%);
}

body.stimulus-diffusion-page .section--adaptation-test {
  border-top: 4px solid #10b981;
}

body.stimulus-diffusion-page .section--not-stimulus {
  border-top: 4px solid #f59e0b;
}

body.stimulus-diffusion-page .adaptation-test-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 18px;
}

body.stimulus-diffusion-page .adaptation-test-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  border-radius: 14px;
  border: 2px solid #c7d2fe;
  background: #f8faff;
  color: #1f2545;
  cursor: pointer;
  text-align: center;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

body.stimulus-diffusion-page .adaptation-test-card:hover,
body.stimulus-diffusion-page .adaptation-test-card:focus-visible {
  border-color: #10b981;
  background: #ecfdf5;
  outline: none;
}

body.stimulus-diffusion-page .adaptation-test-card.is-reviewed {
  border-color: #10b981;
  background: #f0fdf4;
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.15);
}

body.stimulus-diffusion-page .adaptation-test-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #0a0f5a;
  color: #ffd37a;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.stimulus-diffusion-page .adaptation-test-svg {
  width: 28px;
  height: 28px;
}

body.stimulus-diffusion-page .adaptation-test-label {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
}

body.stimulus-diffusion-page .adaptation-test-label strong {
  display: block;
  color: #0a0f5a;
  margin-bottom: 4px;
}

body.stimulus-diffusion-page .adaptation-test-label span {
  color: #4a5276;
}

body.stimulus-diffusion-page .stimulus-process-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 20px;
}

body.stimulus-diffusion-page .stimulus-process-card {
  padding: 14px 12px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  text-align: center;
}

body.stimulus-diffusion-page .stimulus-process-card h4 {
  margin: 10px 0 0;
  font-size: 0.88rem;
  color: #0a0f5a;
  line-height: 1.35;
}

body.stimulus-diffusion-page .stimulus-process-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto;
  border-radius: 50%;
  background: #eef2ff;
  color: #0a0f5a;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.stimulus-diffusion-page .stimulus-process-svg {
  width: 24px;
  height: 24px;
}

body.stimulus-diffusion-page .not-stimulus-table .not-stimulus-row {
  cursor: pointer;
  transition: background 0.15s ease;
}

body.stimulus-diffusion-page .not-stimulus-table .not-stimulus-row:hover,
body.stimulus-diffusion-page .not-stimulus-table .not-stimulus-row:focus-visible {
  background: #fff7ed;
  outline: none;
}

body.stimulus-diffusion-page .not-stimulus-table .not-stimulus-row.is-reviewed {
  background: #f0fdf4;
}

body.stimulus-diffusion-page .not-stimulus-table .not-stimulus-row.is-reviewed td {
  color: #14532d;
}

body.stimulus-diffusion-page .final-content-loop .final-loop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

body.stimulus-diffusion-page .final-content-loop .btn-outline {
  color: #0a0f5a;
  border-color: #0a0f5a;
  background: #ffffff;
}

body.stimulus-diffusion-page .sorter-pick {
  border: 2px solid #c7d2fe;
  background: #ffffff;
  color: #0a0f5a;
  font-weight: 700;
}

body.stimulus-diffusion-page .pyramids-hero-h2-wrap {
  position: relative;
}

body.stimulus-diffusion-page .pyramids-hero-h2-wrap .diffusion-section-finish {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero layout + contrast (mirrors hierarchical spoke) */
body.stimulus-diffusion-page.diffusion-learning-hub .hero.unit-hero {
  padding-bottom: 0 !important;
}

body.stimulus-diffusion-page.diffusion-learning-hub .hero.unit-hero .hero-inner.diffusion-howto-hero-inner {
  display: block !important;
  max-width: 1180px !important;
  padding: 28px 24px 24px !important;
}

body.stimulus-diffusion-page .diffusion-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 400px);
  align-items: start;
  gap: 24px;
  margin-top: 4px;
}

body.stimulus-diffusion-page .diffusion-hero-main {
  display: block !important;
  min-width: 0;
  --expansion-hero-half-line: calc(0.96rem * 1.55 * 0.5);
}

body.stimulus-diffusion-page .hero.unit-hero h1 {
  margin-bottom: 12px !important;
  max-width: none;
  font-size: clamp(1.85rem, 3.6vw, 2.65rem) !important;
  line-height: 1.08 !important;
}

body.stimulus-diffusion-page .diffusion-hero-title-line {
  display: block;
}

body.stimulus-diffusion-page .diffusion-hero-hook {
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 4px solid #ffd37a;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

body.stimulus-diffusion-page .diffusion-hero-hook-text {
  margin: 0;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.94);
}

body.stimulus-diffusion-page .diffusion-hero-hook-text strong {
  color: #ffffff;
}

body.stimulus-diffusion-page .diffusion-hero-lead {
  margin: 0 0 var(--expansion-hero-half-line) !important;
  font-size: 0.96rem;
  line-height: 1.55;
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.9);
}

body.stimulus-diffusion-page .diffusion-hero-lead strong {
  color: #ffffff;
}

body.stimulus-diffusion-page .diffusion-hero-eeat {
  margin: var(--expansion-hero-half-line) 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.78);
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas {
  margin-top: 0 !important;
  margin-bottom: var(--expansion-hero-half-line) !important;
  gap: 12px;
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn {
  min-height: 44px;
  padding: 10px 20px;
  font-weight: 800;
  font-size: 0.9rem;
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:hover,
body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-primary:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:hover,
body.stimulus-diffusion-page .hero.unit-hero .hero-ctas .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  border-color: #ffffff;
  color: #ffffff;
}

body.stimulus-diffusion-page .diffusion-hero-highlights-panel {
  padding: 14px 14px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

body.stimulus-diffusion-page .diffusion-hero-panel-title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

body.stimulus-diffusion-page .diffusion-hero-highlight-box {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
}

body.stimulus-diffusion-page .diffusion-hero-highlights-marker {
  color: #ffd37a;
}

body.stimulus-diffusion-page .diffusion-hero-highlight-copy strong {
  color: #ffffff;
}

body.stimulus-diffusion-page .diffusion-hero-highlight-detail {
  color: rgba(255, 255, 255, 0.78);
}

/* Section Finish row — high-contrast card bar */
body.stimulus-diffusion-page .diffusion-section-finish {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  margin-top: 24px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1.5px solid #c7d2fe;
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
  box-shadow: 0 4px 18px rgba(10, 15, 90, 0.07);
}

body.stimulus-diffusion-page .diffusion-page1-callout .diffusion-section-finish,
body.stimulus-diffusion-page .journey-strip .diffusion-section-finish {
  background: #ffffff;
  border-color: #a5b4fc;
}

body.stimulus-diffusion-page .diffusion-section-finish-btn {
  min-width: 8.5rem;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.88rem;
  line-height: 1.2;
  color: #ffffff;
  border: none;
  background: linear-gradient(180deg, #2a35a3 0%, #0a0f5a 100%);
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.22);
  cursor: pointer;
  appearance: none;
  transition:
    background 0.12s ease,
    color 0.12s ease,
    box-shadow 0.12s ease,
    transform 0.12s ease;
}

body.stimulus-diffusion-page .diffusion-section-finish-btn:hover:not(.is-done) {
  background: linear-gradient(180deg, #3d4bc4 0%, #1c2580 100%);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.28);
  transform: translateY(-1px);
}

body.stimulus-diffusion-page .diffusion-section-finish-btn:focus-visible {
  outline: 3px solid #ffd37a;
  outline-offset: 2px;
}

body.stimulus-diffusion-page .diffusion-section-finish-btn.is-done {
  color: #14532d;
  border: 2px solid #22c55e;
  background: #dcfce7;
  box-shadow: inset 0 0 0 1px rgba(34, 197, 94, 0.25);
  cursor: default;
  transform: none;
}

body.stimulus-diffusion-page .diffusion-section-finish-btn.is-done:hover {
  color: #14532d;
  border-color: #22c55e;
  background: #dcfce7;
  transform: none;
}

body.stimulus-diffusion-page .diffusion-section-next {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
  color: #0a0f5a;
  text-decoration: none;
  background: #ffffff;
  border: 2px solid #0a0f5a;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.06);
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease,
    box-shadow 0.12s ease;
}

body.stimulus-diffusion-page .diffusion-section-next:hover,
body.stimulus-diffusion-page .diffusion-section-next:focus-visible {
  color: #ffffff;
  background: #0a0f5a;
  border-color: #0a0f5a;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.2);
}

body.stimulus-diffusion-page .progress-widget-stimulus {
  border: 1px solid rgba(199, 210, 254, 0.35);
  box-shadow: 0 18px 44px rgba(10, 15, 90, 0.24);
}

body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-blue {
  min-height: 44px;
  background: #ffd37a;
  color: #0a0f5a;
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-blue:hover,
body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-blue:focus-visible {
  background: #ffc85a;
  color: #0a0f5a;
}

body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-outline {
  min-height: 44px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
  background: transparent;
  font-weight: 800;
}

body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-outline:hover,
body.stimulus-diffusion-page .progress-widget-stimulus .progress-widget-cta .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  border-color: #ffffff;
  color: #ffffff;
}

body.stimulus-diffusion-page .diffusion-sticky-menu a {
  font-weight: 700;
  color: #4a5276;
}

body.stimulus-diffusion-page .diffusion-sticky-menu a:hover,
body.stimulus-diffusion-page .diffusion-sticky-menu a:focus-visible {
  border-color: #a5b4fc;
  background: #eef2ff;
  color: #0a0f5a;
}

body.stimulus-diffusion-page .diffusion-sticky-menu a.is-active {
  border-color: #0a0f5a;
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
}

body.stimulus-diffusion-page .quick-answer-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

body.stimulus-diffusion-page .quick-answer-btns a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.86rem;
  color: #0a0f5a !important;
  border: 2px solid #c7d2fe;
  background: #ffffff;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.04);
}

body.stimulus-diffusion-page .quick-answer-btns a:hover,
body.stimulus-diffusion-page .quick-answer-btns a:focus-visible {
  border-color: #0a0f5a;
  background: #0a0f5a;
  color: #ffffff !important;
}

body.stimulus-diffusion-page .journey-chip.is-here {
  border-color: #f59e0b;
  background: linear-gradient(145deg, #fffbeb 0%, #ffffff 60%);
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.18);
}

body.stimulus-diffusion-page .journey-chip.is-here em {
  color: #b45309;
}

body.stimulus-diffusion-page .sorter-pick {
  min-height: 44px;
  padding: 10px 14px;
}

body.stimulus-diffusion-page .sorter-pick:hover:not(:disabled),
body.stimulus-diffusion-page .sorter-pick:focus-visible:not(:disabled) {
  border-color: #0a0f5a;
  background: #eef2ff;
  color: #0a0f5a;
}

body.stimulus-diffusion-page .sorter-pick.correct {
  border-color: #22c55e;
  background: #dcfce7;
  color: #14532d;
}

body.stimulus-diffusion-page .sorter-pick.wrong {
  border-color: #f87171;
  background: #fef2f2;
  color: #991b1b;
}

body.stimulus-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue {
  min-height: 44px;
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
}

body.stimulus-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:hover:not(:disabled),
body.stimulus-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:focus-visible:not(:disabled) {
  background: linear-gradient(180deg, #2a35a3 0%, #1c2580 100%);
  color: #ffffff;
}

body.stimulus-diffusion-page .section--practice .controls #practiceNextBtn.btn-blue:disabled {
  background: #94a3b8;
  color: #ffffff;
  opacity: 1;
}

body.stimulus-diffusion-page .section--practice .controls #practiceResetBtn {
  min-height: 44px;
  color: #0a0f5a;
  border: 2px solid #c7d2fe;
  background: #ffffff;
  font-weight: 700;
}

body.stimulus-diffusion-page .section--practice .question-box .option {
  color: #1f2545;
  border: 2px solid #e2e8f0;
  background: #ffffff;
  font-weight: 600;
}

body.stimulus-diffusion-page .section--practice .question-box .option:hover:not(:disabled) {
  border-color: #a5b4fc;
  background: #eef2ff;
  color: #0a0f5a;
}

body.stimulus-diffusion-page .final-content-loop .btn-primary {
  background: linear-gradient(180deg, #1c2580 0%, #0a0f5a 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 800;
}

body.stimulus-diffusion-page .final-content-loop .btn-outline {
  color: #0a0f5a;
  border: 2px solid #0a0f5a;
  background: #ffffff;
  font-weight: 800;
}

body.stimulus-diffusion-page .final-content-loop .btn-outline:hover,
body.stimulus-diffusion-page .final-content-loop .btn-outline:focus-visible {
  background: #0a0f5a;
  color: #ffffff;
}

@media (max-width: 980px) {
  body.stimulus-diffusion-page .diffusion-hero-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body.stimulus-diffusion-page .diffusion-section-finish {
    flex-direction: column;
    align-items: stretch;
  }

  body.stimulus-diffusion-page .diffusion-section-finish-btn,
  body.stimulus-diffusion-page .diffusion-section-next {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 900px) {
  body.stimulus-diffusion-page .stimulus-process-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  body.stimulus-diffusion-page .adaptation-test-strip {
    grid-template-columns: 1fr;
  }

  body.stimulus-diffusion-page .stimulus-process-flow {
    grid-template-columns: 1fr;
  }
}