.learning-preview {
  padding: 10px 20px;
  background: #fff3cd;
  color: #674d00;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}

.learning-narrow {
  width: min(850px, calc(100% - 40px));
  margin: 0 auto;
}

.learning-hub-hero,
.learning-hero {
  padding: 86px 0 64px;
  background:
    radial-gradient(circle at 84% 12%, rgba(0, 215, 122, 0.12), transparent 30%),
    radial-gradient(circle at 12% 8%, rgba(11, 124, 255, 0.13), transparent 34%),
    linear-gradient(180deg, #f7fbff 0%, #fff 100%);
  border-bottom: 1px solid var(--soft-line);
}

.learning-hub-hero h1,
.learning-hero h1 {
  max-width: 900px;
  margin: 10px 0 20px;
  font-size: clamp(40px, 6vw, 66px);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.03;
}

.learning-hero h1 {
  font-size: clamp(38px, 5vw, 62px);
}

.learning-lead {
  max-width: 800px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(19px, 2.5vw, 24px);
  line-height: 1.55;
}

.learning-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.learning-breadcrumbs a:hover,
.learning-back a:hover,
.learning-read:hover {
  color: var(--blue);
}

.learning-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 36px 0 0;
}

.learning-meta div {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.86);
}

.learning-meta dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.learning-meta dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
  font-weight: 700;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.learning-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.learning-card-image {
  display: block;
  overflow: hidden;
  aspect-ratio: 1200 / 630;
  background: var(--blue-soft);
}

.learning-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.learning-card:hover .learning-card-image img {
  transform: scale(1.02);
}

.learning-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px;
}

.learning-card h2 {
  margin: 7px 0 12px;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.learning-card h2 a::after {
  position: absolute;
  content: "";
}

.learning-card-body > p:not(.section-kicker):not(.learning-card-meta) {
  color: var(--muted);
}

.learning-card-meta {
  margin-top: auto;
  padding-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.learning-read {
  color: var(--blue-dark);
  font-weight: 850;
}

.learning-empty {
  grid-column: 1 / -1;
  padding: 60px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

.learning-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(240px, 320px);
  gap: 64px;
  align-items: start;
  padding-top: 64px;
}

.learning-prose {
  min-width: 0;
  color: #183455;
  font-size: 18px;
  line-height: 1.78;
}

.learning-prose h2,
.learning-prose h3,
.learning-prose h4 {
  color: var(--ink);
  scroll-margin-top: 110px;
}

.learning-prose h2 {
  margin: 58px 0 18px;
  font-size: clamp(29px, 4vw, 39px);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.learning-prose h3 {
  margin: 40px 0 14px;
  font-size: 25px;
  line-height: 1.24;
}

.learning-prose h4 {
  margin: 28px 0 10px;
  font-size: 20px;
}

.learning-prose p,
.learning-prose ul,
.learning-prose ol,
.learning-prose blockquote {
  margin: 0 0 22px;
}

.learning-prose li + li {
  margin-top: 8px;
}

.learning-prose a,
.learning-sources a {
  color: var(--blue-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.learning-prose blockquote {
  padding: 20px 24px;
  border-left: 4px solid var(--green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--green-soft);
}

.learning-prose blockquote > :last-child {
  margin-bottom: 0;
}

.learning-table {
  max-width: 100%;
  margin: 30px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: 0 8px 26px rgba(10, 35, 74, 0.06);
}

.learning-table:focus-visible {
  outline-offset: 2px;
}

.learning-table table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.45;
}

.learning-table th,
.learning-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--soft-line);
  text-align: left;
  vertical-align: top;
}

.learning-table th {
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
}

.learning-table tr:last-child td {
  border-bottom: 0;
}

.learning-aside {
  position: sticky;
  top: 104px;
}

.learning-note {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--muted);
  font-size: 14px;
}

.learning-note h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 20px;
}

.learning-note p:last-child {
  margin-bottom: 0;
}

.learning-afterword {
  padding-top: 54px;
  padding-bottom: 84px;
}

.learning-author,
.learning-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 36px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.learning-author {
  justify-content: flex-start;
}

.learning-author img {
  flex: 0 0 auto;
}

.learning-author h2,
.learning-cta h2,
.learning-sources h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.learning-author p,
.learning-cta p {
  margin: 0;
  color: var(--muted);
}

.learning-sources {
  margin-top: 48px;
}

.learning-sources ol {
  padding-left: 24px;
}

.learning-sources li {
  padding: 10px 0;
}

.learning-sources li span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.learning-cta {
  background:
    radial-gradient(circle at 90% 10%, rgba(0, 215, 122, 0.14), transparent 36%),
    var(--blue-soft);
}

.learning-cta-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}

.learning-store {
  display: inline-flex;
  border-radius: 7px;
}

.learning-store img {
  display: block;
  width: auto;
  height: 45px;
}

.learning-back {
  margin-top: 32px;
  font-weight: 800;
}

@media (max-width: 950px) {
  .learning-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .learning-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .learning-aside {
    position: static;
    order: -1;
  }
}

@media (max-width: 700px) {
  .learning-hub-hero,
  .learning-hero {
    padding: 60px 0 44px;
  }

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

  .learning-card-body {
    padding: 22px;
  }

  .learning-layout {
    padding-top: 42px;
  }

  .learning-prose {
    font-size: 17px;
  }

  .learning-author,
  .learning-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .learning-cta-actions,
  .learning-cta-actions .btn,
  .learning-cta-actions .learning-store {
    width: 100%;
  }

  .learning-cta-actions .learning-store {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .learning-meta {
    grid-template-columns: 1fr;
  }

  .learning-afterword {
    padding-bottom: 60px;
  }
}

@media print {
  .site-header,
  .site-footer,
  .learning-cta,
  .learning-back,
  .learning-preview {
    display: none !important;
  }

  .learning-layout {
    display: block;
  }

  .learning-aside {
    position: static;
    margin: 24px 0;
  }
}