:root {
  --learning-navy: #1f2a44;
  --learning-teal: #1f9d8a;
  --learning-teal-dark: #147a6c;
  --learning-gold: #f2b84b;
  --learning-sky: #eaf6f8;
  --learning-mint: #eaf7f2;
  --learning-lavender: #eeeaf8;
  --learning-coral: #d95f59;
  --learning-ink: #1f2933;
  --learning-muted: #667085;
  --learning-space-xs: 8px;
  --learning-space-sm: 12px;
  --learning-space-md: 16px;
  --learning-space-lg: 22px;
  --learning-space-xl: clamp(34px, 5.5vw, 72px);
}

.learning-page {
  color: var(--learning-ink);
  background: #f7fbfc;
}

.learning-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: clamp(22px, 5vw, 58px);
  align-items: center;
  padding: clamp(36px, 6vw, 76px) clamp(18px, 5vw, 64px);
  background:
    linear-gradient(135deg, rgba(234, 246, 248, 0.96), rgba(255, 255, 255, 0.98)),
    #ffffff;
}

.learning-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-xs);
  align-items: center;
  padding: 10px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid #d9e8ec;
  background: #ffffff;
}

.learning-subnav a,
.learning-subnav span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 9px 11px;
  border-radius: var(--radius);
  color: var(--learning-navy);
  font-size: 0.92rem;
  font-weight: 900;
  text-decoration: none;
}

.learning-subnav a:hover,
.learning-subnav a:focus-visible,
.learning-subnav a.active {
  color: var(--learning-teal-dark);
  background: var(--learning-mint);
  outline: none;
}

.learning-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-xs);
  align-items: center;
  padding: 12px clamp(18px, 5vw, 64px) 0;
  color: var(--learning-muted);
  background: #f7fbfc;
  font-size: 0.92rem;
  font-weight: 800;
}

.learning-breadcrumbs a {
  color: var(--learning-teal-dark);
  text-decoration: none;
}

.learning-breadcrumbs a:hover,
.learning-breadcrumbs a:focus-visible {
  text-decoration: underline;
}

.learning-breadcrumbs span[aria-hidden="true"] {
  color: #9aa8b4;
}

.learning-hero .eyebrow,
.learning-section .eyebrow {
  color: var(--learning-teal-dark);
}

.learning-hero h1 {
  max-width: 900px;
  color: var(--learning-navy);
}

.learning-hero p {
  max-width: 760px;
  color: var(--learning-muted);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
}

.activity-language-tabs {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 6px;
  padding: 7px 10px;
  border: 1px solid rgba(20, 122, 108, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 20px rgba(31, 42, 68, 0.07);
}

.activity-language-tabs::before {
  content: none;
}

.activity-language-tabs a,
.activity-language-tabs span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  min-width: 86px;
  padding: 7px 12px;
  border: 0;
  border-radius: 999px;
  color: var(--learning-navy);
  background: transparent;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 900;
  text-decoration: none;
  opacity: 0.72;
  transition: background 160ms ease, color 160ms ease, opacity 160ms ease, box-shadow 160ms ease;
}

.activity-language-tabs .activity-language-separator {
  min-width: 0;
  padding: 0;
  color: rgba(31, 42, 68, 0.45);
  opacity: 1;
}

.activity-language-tabs a:hover,
.activity-language-tabs a:focus-visible {
  color: var(--learning-teal-dark);
  opacity: 1;
  box-shadow: 0 0 0 3px rgba(31, 157, 138, 0.14);
  outline: none;
}

.activity-language-tabs span[aria-current="page"] {
  color: #ffffff;
  background: var(--learning-teal-dark);
  box-shadow: 0 7px 16px rgba(20, 122, 108, 0.2);
  opacity: 1;
}

.learning-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-sm);
  margin-top: 20px;
}

.activity-sheets-hero {
  display: block;
  padding-top: clamp(42px, 6vw, 72px);
  padding-bottom: clamp(38px, 5vw, 64px);
}

.activity-sheets-hero-inner {
  display: grid;
  gap: clamp(18px, 4vw, 28px);
  width: min(100%, 920px);
  margin: 0 auto;
}

.activity-sheets-hero-copy {
  max-width: none;
}

.activity-sheets-intro {
  display: grid;
  gap: var(--learning-space-sm);
}

.activity-sheets-intro p:last-child {
  margin-bottom: 0;
}

.activity-sheets-hero .learning-hero-actions {
  gap: var(--learning-space-sm);
  margin-top: 24px;
}

.activity-sheets-primary-actions {
  margin-bottom: var(--learning-space-md);
}

.activity-sheets-hero .learning-button {
  justify-self: start;
}

.activity-sheet-link-grid {
  display: grid;
  gap: var(--learning-space-xs);
  align-items: stretch;
  width: min(100%, 560px);
}

.activity-sheet-link-grid .learning-button-secondary {
  min-width: 0;
}

@media (min-width: 821px) {
  .activity-sheets-hero-inner {
    justify-items: start;
    width: min(100%, 1040px);
  }

  .activity-sheets-hero-copy {
    width: 100%;
  }

  .activity-sheets-intro {
    width: 100%;
    max-width: 980px;
  }

  .activity-sheets-hero-copy h1 {
    width: 100%;
    max-width: none;
  }

  .activity-sheets-hero-copy p:not(.eyebrow) {
    max-width: 920px;
  }

  .activity-sheets-hero .learning-hero-actions {
    justify-content: flex-start;
  }

  .activity-sheet-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: min(100%, 720px);
  }

  .activity-sheet-link-grid .learning-button-secondary {
    width: 100%;
    padding-right: 12px;
    padding-left: 12px;
  }
}

@media (min-width: 1100px) {
  .activity-sheets-hero {
    padding-top: clamp(34px, 3vw, 42px);
    padding-bottom: clamp(32px, 3vw, 38px);
  }

  .activity-sheets-hero-inner {
    width: min(100%, 1120px);
  }

  .activity-sheets-intro {
    max-width: 1040px;
  }

  .activity-sheet-link-grid {
    width: min(100%, 760px);
  }
}

.learning-button,
.learning-button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  text-decoration: none;
}

.learning-button {
  color: #ffffff;
  background: var(--learning-teal-dark);
  box-shadow: 0 12px 26px rgba(20, 122, 108, 0.18);
}

.learning-button-secondary {
  color: var(--learning-navy);
  background: #ffffff;
  border-color: #cfdde5;
}

.learning-button-tertiary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 14px;
  color: var(--learning-teal-dark);
  font-weight: 900;
  text-decoration: none;
}

.learning-button:focus-visible,
.learning-button-secondary:focus-visible,
.learning-button-tertiary:focus-visible,
.learning-card:focus-visible,
.challenge-card:focus-visible,
.topic-card:focus-visible,
.resource-card:focus-visible {
  outline: 3px solid rgba(31, 157, 138, 0.34);
  outline-offset: 3px;
}

.learn-signature {
  display: grid;
  gap: var(--learning-space-xs);
  max-width: 720px;
  padding: clamp(14px, 3vw, 20px);
  border: 1px solid #d6e5e9;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.learning-hero .learn-signature {
  margin-top: 18px;
}

.learn-signature-title {
  margin: 0;
  color: var(--learning-teal-dark);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.1;
  text-transform: uppercase;
}

.learn-signature-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--learning-space-xs);
}

.learn-signature-chip,
.learn-signature-challenge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid #cfe2e7;
  border-radius: 999px;
  color: var(--learning-navy);
  background: var(--learning-sky);
  font-size: 0.88rem;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
}

.learn-signature-chip::before {
  content: attr(data-step);
  display: inline-grid;
  place-items: center;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin-right: 7px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--learning-teal-dark);
  font-size: 0.72rem;
}

.learn-signature-challenge {
  gap: 8px;
  color: #6f4700;
  background: #fff7df;
  border-color: #f5d892;
}

.learn-signature-challenge-icon {
  line-height: 1;
}

.learn-signature-section {
  padding-top: clamp(18px, 3.5vw, 30px);
  padding-bottom: clamp(18px, 3.5vw, 30px);
}

.learn-signature-section .learn-signature {
  margin: 0 auto;
}

.activity-series-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--learning-space-xs);
  max-width: 900px;
  margin-bottom: 14px;
}

.activity-series-header span {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid #d6e5e9;
  border-radius: 999px;
  color: var(--learning-teal-dark);
  background: rgba(255, 255, 255, 0.78);
  font-size: 0.8rem;
  font-weight: 900;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.activity-series-header .series-name {
  color: #ffffff;
  background: var(--learning-teal-dark);
  border-color: var(--learning-teal-dark);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.activity-series-header .series-number {
  color: #6f4700;
  background: #fff1cc;
  border-color: #f5d892;
}

.activity-series-header .series-title {
  color: var(--learning-navy);
  background: var(--learning-mint);
}

.activity-summary {
  display: grid;
  gap: var(--learning-space-xs);
  max-width: 720px;
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid #d6e5e9;
  border-left: 5px solid var(--learning-teal);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.activity-summary p {
  margin: 0;
  color: var(--learning-navy);
  font-size: 0.98rem;
  font-weight: 900;
  line-height: 1.35;
}

.activity-summary-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-xs);
  align-items: center;
}

.activity-summary-separator {
  color: #9aa8b4;
}

.activity-summary-calculator {
  color: var(--learning-muted);
}

.activity-summary-calculator strong {
  color: var(--learning-teal-dark);
}

.activity-figure {
  display: grid;
  gap: var(--learning-space-xs);
  margin: 0;
}

.activity-figure picture {
  display: block;
}

.activity-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #d9e8ec;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 18px 44px rgba(18, 32, 55, 0.09);
}

.activity-figure figcaption {
  position: relative;
  z-index: 2;
  color: var(--learning-muted);
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.4;
}

.learning-hero .activity-figure {
  max-width: 520px;
}

.learning-section {
  padding: var(--learning-space-xl) clamp(18px, 5vw, 64px);
}

.learning-section.is-white {
  background: #ffffff;
}

.learning-section.is-soft {
  background: var(--learning-sky);
}

.learning-section-header {
  max-width: 840px;
  margin-bottom: 20px;
}

.learning-section-header h2 {
  color: var(--learning-navy);
}

.learning-section-header p,
.learning-card p,
.challenge-card p,
.topic-card p,
.resource-card p,
.calculator-card-learning p,
.activity-step-card p,
.common-mistake-card p {
  color: var(--learning-muted);
}

.learning-card-grid,
.challenge-grid,
.topic-grid,
.resource-grid {
  display: grid;
  gap: 14px;
}

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

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

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

.learning-card,
.challenge-card,
.topic-card,
.resource-card,
.calculator-card-learning,
.callout-box,
.activity-step-card,
.materials-required-card,
.common-mistake-card,
.formula-box {
  border: 1px solid #dce7ec;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.learning-card,
.challenge-card,
.topic-card,
.resource-card {
  display: grid;
  gap: var(--learning-space-xs);
  min-width: 0;
  padding: var(--learning-space-lg);
  text-decoration: none;
}

.challenge-card {
  border-top: 4px solid var(--learning-gold);
}

.challenge-card:hover,
.topic-card:hover,
.resource-card:hover,
.learning-card:hover {
  border-color: rgba(31, 157, 138, 0.55);
  transform: translateY(-2px);
  transition: 180ms ease;
}

.learning-card h3,
.challenge-card h3,
.topic-card h3,
.resource-card h3,
.calculator-card-learning h3,
.callout-box h3,
.activity-step-card h3,
.materials-required-card h3,
.common-mistake-card h3,
.formula-box h3 {
  color: var(--learning-navy);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-xs);
  padding: 0;
  margin: 0;
  list-style: none;
}

.card-meta li,
.learning-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--learning-teal-dark);
  background: var(--learning-mint);
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.15;
}

.availability-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.1;
}

.availability-badge.available {
  color: #116047;
  background: #e2f8ef;
  border-color: #b9ead8;
}

.availability-badge.printable {
  color: #4f3b86;
  background: #eeeaf8;
  border-color: #dacef3;
}

.learning-tag.is-gold {
  color: #6f4700;
  background: #fff1cc;
}

.activity-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(280px, 0.32fr);
  gap: clamp(18px, 3.5vw, 34px);
  align-items: start;
  max-width: 1280px;
  margin: 0 auto;
}

.activity-main {
  display: grid;
  gap: 14px;
}

.activity-sidebar {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 14px;
}

.activity-step-card,
.formula-box {
  padding: clamp(18px, 3vw, 26px);
}

.activity-step-card {
  display: grid;
  gap: var(--learning-space-sm);
}

.activity-step-heading {
  display: flex;
  gap: var(--learning-space-sm);
  align-items: flex-start;
}

.activity-step-number {
  display: inline-grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--learning-teal-dark);
  font-weight: 900;
}

.activity-step-heading h2 {
  margin-bottom: 6px;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

.activity-list,
.question-list,
.mistake-list,
.extension-list {
  display: grid;
  gap: var(--learning-space-xs);
  padding-left: 22px;
  margin: 0;
  color: var(--learning-muted);
}

.activity-list strong,
.question-list strong,
.mistake-list strong,
.extension-list strong {
  color: var(--learning-ink);
}

.materials-required-card {
  display: grid;
  gap: var(--learning-space-sm);
  padding: clamp(18px, 3vw, 26px);
}

.materials-required-card h3 {
  margin-bottom: 0;
}

.materials-required-section {
  display: grid;
  gap: 7px;
  padding-top: 12px;
  border-top: 1px solid #dce7ec;
}

.materials-required-section:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.materials-required-section h4 {
  margin: 0;
  color: var(--learning-navy);
  font-size: 0.98rem;
}

.materials-compact-list {
  display: grid;
  gap: 6px 22px;
  padding-left: 20px;
  margin: 0;
  color: var(--learning-muted);
  line-height: 1.3;
}

.materials-compact-list.is-two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.materials-compact-list li {
  min-width: 0;
}

.formula-box {
  background: var(--learning-sky);
}

.formula {
  display: inline-block;
  margin: 6px 0 10px;
  padding: 12px 14px;
  border-radius: var(--radius);
  color: var(--learning-navy);
  background: #ffffff;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 900;
}

.common-mistakes-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--learning-space-sm);
}

.common-mistake-card {
  padding: var(--learning-space-md);
}

.activity-jump-list {
  display: grid;
  gap: var(--learning-space-xs);
  padding: var(--learning-space-md);
  border: 1px solid #dce7ec;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.activity-jump-list h2 {
  margin-bottom: 4px;
  font-size: 1.1rem;
}

.activity-jump-list a {
  color: var(--learning-teal-dark);
  font-weight: 900;
  text-decoration: none;
}

.activity-jump-list a:hover,
.activity-jump-list a:focus-visible {
  text-decoration: underline;
}

.worksheet-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--learning-space-md);
  align-items: center;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid #dacef3;
  border-radius: var(--radius);
  background: var(--learning-lavender);
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.worksheet-card h2 {
  color: var(--learning-navy);
}

.worksheet-card p {
  color: var(--learning-muted);
}

.worksheet-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--learning-space-xs);
  justify-content: flex-end;
}

.learning-hub-activity-sheets .activity-sheets-summary-card {
  display: block;
  max-width: 1120px;
  margin: 0 auto;
}

.activity-sheets-summary-copy {
  max-width: 940px;
}

.activity-sheets-summary-copy h2 {
  max-width: none;
}

.activity-sheets-summary-copy p:not(.eyebrow) {
  max-width: 900px;
}

.activity-sheets-summary-actions {
  display: grid;
  justify-content: start;
  width: min(100%, 760px);
  margin-top: var(--learning-space-lg);
}

.activity-sheets-summary-actions .learning-button {
  justify-self: start;
}

.activity-sheets-summary-actions .activity-sheet-link-grid {
  width: 100%;
}

.calculator-card-learning {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--learning-space-md);
  align-items: center;
  padding: clamp(18px, 3vw, 28px);
  border-left: 5px solid var(--learning-teal);
}

.callout-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.component-preview-callouts {
  margin-top: var(--learning-space-sm);
}

.callout-box {
  padding: var(--learning-space-lg);
}

.callout-box.reflection {
  background: var(--learning-lavender);
}

.callout-box.real-world {
  background: #fff7df;
  border-color: #f5d892;
}

.real-world-feature {
  display: grid;
  gap: var(--learning-space-sm);
  padding: clamp(18px, 3vw, 28px);
  border: 2px solid #f2b84b;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, #fff7df 0%, #ffffff 100%);
  box-shadow: 0 14px 34px rgba(111, 71, 0, 0.1);
}

.real-world-feature h3 {
  color: #6f4700;
  font-size: clamp(1.25rem, 2.5vw, 1.8rem);
}

.real-world-feature p {
  max-width: 780px;
}

.related-resources {
  display: grid;
  gap: 14px;
}

.related-resource-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--learning-space-sm);
}

.related-resource-card {
  display: grid;
  gap: var(--learning-space-xs);
  min-width: 0;
  padding: var(--learning-space-md);
  border: 1px solid #dce7ec;
  border-radius: var(--radius);
  color: inherit;
  background: #ffffff;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(18, 32, 55, 0.06);
}

.related-resource-card h3 {
  color: var(--learning-navy);
  font-size: 1.05rem;
}

.related-resource-card p {
  color: var(--learning-muted);
}

.callout-box.tip {
  background: var(--learning-mint);
}

.callout-box.safety {
  background: #fff1f0;
  border-color: rgba(217, 95, 89, 0.38);
}

.learning-cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--learning-space-md);
  align-items: center;
  padding: clamp(20px, 3.5vw, 32px);
  border-radius: var(--radius);
  color: #ffffff;
  background: var(--learning-navy);
}

.learning-cta-band h2,
.learning-cta-band p {
  max-width: 780px;
  color: #ffffff;
}

.learning-cta-band p {
  margin-bottom: 0;
  color: #d7e3f4;
}

@media (max-width: 1100px) {
  .challenge-grid,
  .learning-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-grid,
  .resource-grid,
  .related-resource-grid,
  .common-mistakes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .activity-layout {
    grid-template-columns: 1fr;
  }

  .activity-sidebar {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .learning-hero,
  .activity-sheets-hero,
  .calculator-card-learning,
  .learning-cta-band,
  .worksheet-card {
    grid-template-columns: 1fr;
  }

  .activity-sheets-hero .learn-signature {
    margin-top: 12px;
  }

  .worksheet-actions {
    justify-content: flex-start;
  }

  .topic-grid,
  .resource-grid,
  .callout-grid,
  .related-resource-grid,
  .common-mistakes-grid,
  .activity-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 620px) {
  html[lang="fr"] .learning-page,
  html[lang="fr"] .learning-hero,
  html[lang="fr"] .learning-section {
    max-width: 100vw;
    overflow-x: clip;
  }

  html[lang="fr"] .learning-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  html[lang="fr"] .learning-hero > *,
  html[lang="fr"] .activity-layout,
  html[lang="fr"] .activity-main,
  html[lang="fr"] .activity-figure,
  html[lang="fr"] .activity-figure picture {
    min-width: 0;
    max-width: 100%;
  }

  html[lang="fr"] .learning-hero .activity-figure {
    width: 100%;
  }

  html[lang="fr"] .activity-figure picture {
    display: block;
    width: 100%;
  }

  html[lang="fr"] .activity-figure img {
    width: 100%;
    max-width: 100%;
  }

  html[lang="fr"] .learning-subnav {
    overflow-x: auto;
  }

  html[lang="fr"] .learning-hero h1,
  html[lang="fr"] .learning-button,
  html[lang="fr"] .learning-button-secondary,
  html[lang="fr"] .activity-series-header span,
  html[lang="fr"] .activity-summary,
  html[lang="fr"] .activity-summary strong {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: normal;
  }

  html[lang="fr"] .learning-hero h1 {
    font-size: clamp(2.15rem, 11vw, 3rem);
    line-height: 1.08;
  }

  html[lang="fr"] .learning-button,
  html[lang="fr"] .learning-button-secondary {
    white-space: normal;
    text-align: center;
  }

  .learning-hero {
    gap: 18px;
    padding: 28px 16px;
  }

  .learning-subnav {
    padding: 8px 12px;
  }

  .learning-subnav a,
  .learning-subnav span {
    min-height: 44px;
    padding: 8px 9px;
    font-size: 0.86rem;
  }

  .learning-breadcrumbs {
    padding: 10px 16px 0;
    font-size: 0.86rem;
  }

  .learning-section {
    padding: 30px 16px;
  }

  .learning-section-header {
    margin-bottom: 16px;
  }

  .learning-hero-actions,
  .activity-sheets-hero .learning-hero-actions,
  .calculator-card-learning,
  .learning-cta-band,
  .worksheet-card {
    align-items: stretch;
  }

  .learning-button,
  .learning-button-secondary {
    width: 100%;
  }

  .activity-sheets-hero .learning-button {
    justify-self: stretch;
  }

  .activity-sheet-link-grid {
    grid-template-columns: 1fr;
  }

  .worksheet-actions {
    width: 100%;
  }

  .challenge-grid,
  .learning-card-grid,
  .topic-grid,
  .resource-grid,
  .callout-grid,
  .common-mistakes-grid,
  .activity-sidebar {
    grid-template-columns: 1fr;
  }

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

  .activity-sidebar {
    display: none;
  }

  .activity-summary {
    margin-top: 14px;
    padding: 11px 12px;
  }

  .activity-summary p {
    font-size: 0.94rem;
  }

  .learning-card,
  .challenge-card,
  .topic-card,
  .resource-card,
  .related-resource-card,
  .callout-box,
  .activity-step-card,
  .formula-box,
  .common-mistake-card {
    padding: 16px;
  }

  .materials-required-card,
  .worksheet-card,
  .calculator-card-learning,
  .real-world-feature,
  .learning-cta-band {
    padding: 16px;
  }

  .activity-step-number {
    flex-basis: 36px;
    width: 36px;
    height: 36px;
  }

  .activity-step-heading h2 {
    font-size: 1.42rem;
  }
}

@media (max-width: 380px) {
  .materials-compact-list.is-two-column {
    grid-template-columns: 1fr;
  }
}