.breadcrumb-trail {
  margin: 0 0 var(--space-xs) 0;
  font-size: 0.78rem;
  line-height: 1.4;
  color: rgba(15, 23, 42, 0.6);
  display: flex;
  min-height: 1.4rem;
}

.breadcrumb-trail ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb-trail li {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 500;
}

.breadcrumb-trail li:not(:last-child)::after {
  content: '›';
  color: rgba(15, 23, 42, 0.35);
  font-weight: 400;
  font-size: 0.8rem;
}

.breadcrumb-trail a {
  color: rgba(15, 23, 42, 0.6);
  text-decoration: none;
}

.breadcrumb-trail a:hover,
.breadcrumb-trail a:focus-visible {
  color: var(--color-primary-dark);
}

.breadcrumb-trail li:last-child span {
  color: var(--color-text);
  font-weight: 600;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-2xl);
  background: linear-gradient(135deg, rgba(47, 91, 245, 0.12), rgba(27, 198, 245, 0.18));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 12% 18%, rgba(79, 70, 229, 0.22), transparent 60%),
    radial-gradient(circle at 80% 24%, rgba(14, 165, 233, 0.18), transparent 55%);
  pointer-events: none;
}

.hero-content,
.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-content p {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  color: rgba(15, 23, 42, 0.78);
  max-width: 32rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  color: rgba(15, 23, 42, 0.72);
  font-weight: 600;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(47, 91, 245, 0.12);
  border: 1px solid rgba(47, 91, 245, 0.18);
  font-size: 0.85rem;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.hero-visual img {
  width: min(100%, 420px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.articles-section {
padding: var(--space-xl);
background: var(--color-surface);
border-radius: var(--radius-md);
box-shadow: var(--shadow-sm);
}

.articles-section header {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: var(--space-lg);
}

.articles-section header p {
  margin: 0;
  max-width: 38rem;
  color: var(--color-text-muted);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(216, 225, 248, 0.8);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.article-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.article-card .card-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: var(--space-md);
}

.article-card h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--color-text);
}

.article-card p {
  margin: 0;
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

.article-card .card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.article-card .card-link::after {
  content: '→';
  transition: transform 180ms ease;
}

.article-card .card-link:hover::after {
  transform: translateX(4px);
}

.learning-path-section {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid rgba(216, 225, 248, 0.75);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xl);
}

.learning-path-section ol {
  counter-reset: steps;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}

.learning-path-section li {
  counter-increment: steps;
  display: grid;
  gap: 0.35rem;
  padding-left: 3.2rem;
  position: relative;
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding-top: 1rem;
  padding-bottom: 1rem;
  padding-right: 1.25rem;
  border: 1px solid rgba(216, 225, 248, 0.7);
  box-shadow: 0 12px 24px -18px rgba(47, 91, 245, 0.4);
}

.learning-path-section li::before {
  content: counter(steps);
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-primary-contrast);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 6px 12px -8px rgba(47, 91, 245, 0.5);
}

.learning-path-section li span {
  font-weight: 600;
  color: var(--color-text);
}

.learning-path-section li p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .hero-section {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    order: 2;
  }

  .hero-visual {
    order: 1;
    justify-content: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-meta {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }

  .article-card img {
    height: 200px;
  }
}