.breadcrumb {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.breadcrumb__item:not(:last-child)::after {
  content: '/';
  margin-left: var(--space-2);
  color: var(--color-text-muted);
}

.breadcrumb__link {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.development-hero {
  background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-warm-white) 100%);
  padding: var(--space-24) 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.development-hero__title {
  font-size: var(--text-5xl);
  color: var(--color-text);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-6);
}

.development-hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

.development-hero__cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.development-content {
  padding: var(--space-16) 0;
}

.development-section {
  margin-bottom: var(--space-20);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.development-section--highlight {
  background-color: var(--color-surface);
  padding: var(--space-12);
  border-radius: var(--radius-xl);
  max-width: 900px;
  border: 1px solid var(--color-border);
}

.development-section--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  max-width: 1100px;
  align-items: center;
}

.content-block--text {
  max-width: 100%;
}

.content-block--media {
  position: relative;
}

.image-wrapper {
  margin: 0;
  position: relative;
}

.image-wrapper img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow);
}

.image-wrapper:hover img {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.image-wrapper figcaption {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
}

.age-guides {
  margin: var(--space-24) 0;
  padding: var(--space-16) 0;
  border-top: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
}

.age-guides__title {
  text-align: center;
  margin-bottom: var(--space-12);
  font-size: var(--text-3xl);
}

.age-section {
  margin-bottom: var(--space-12);
  padding: var(--space-8);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.age-section:hover {
  box-shadow: var(--shadow-md);
}

.age-section__header {
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.age-badge {
  display: inline-block;
  background-color: var(--color-sage);
  color: white;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.age-section h3 {
  margin: 0;
  font-size: var(--text-2xl);
}

.age-section__content p {
  margin-bottom: var(--space-4);
}

.age-section__content p:last-child {
  margin-bottom: 0;
}

.development-section--expert {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  align-items: start;
  margin-top: var(--space-24);
}

.expert-content {
  padding-right: var(--space-6);
}

.expert-content .btn {
  margin-top: var(--space-6);
}

.expert-images {
  display: grid;
  gap: var(--space-4);
}

.image-wrapper--portrait img {
  aspect-ratio: 3/4;
  object-fit: cover;
}

.image-wrapper--landscape img {
  aspect-ratio: 4/3;
  object-fit: cover;
}

.development-cta {
  background-color: var(--color-sage);
  color: white;
  padding: var(--space-16) 0;
  text-align: center;
  margin-top: var(--space-24);
  border-radius: var(--radius-xl);
}

.development-cta h2 {
  color: white;
  margin-bottom: var(--space-4);
}

.development-cta p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-6);
}

.development-cta__buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.development-cta .btn--secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
}

.development-cta .btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: white;
}

@media (max-width: 768px) {
  .development-hero {
    padding: var(--space-12) 0;
  }
  
  .development-hero__title {
    font-size: var(--text-3xl);
  }
  
  .development-hero__subtitle {
    font-size: var(--text-lg);
  }
  
  .development-section--split,
  .development-section--expert {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .development-section--highlight {
    padding: var(--space-6);
  }
  
  .age-section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .expert-content {
    padding-right: 0;
  }
  
  .expert-images {
    order: -1;
  }
}

@media (max-width: 480px) {
  .development-hero__cta,
  .development-cta__buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .development-hero__cta .btn,
  .development-cta__buttons .btn {
    width: 100%;
  }
}

.development-section h2 {
  color: var(--color-text);
  position: relative;
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-6);
}

.development-section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: var(--color-sage);
  border-radius: var(--radius-full);
}

.content-block p {
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

.content-block p:last-child {
  margin-bottom: 0;
}