.column-preview-section {
  background: linear-gradient(180deg, var(--cyan-50), var(--white));
}

.column-preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
}

.column-preview-heading {
  min-width: 0;
}

.column-preview-heading h2,
.column-hero h1 {
  margin: 0;
  color: var(--blue-950);
  line-height: 1.22;
}

.column-preview-heading h2 {
  font-size: clamp(1.8rem, 3.4vw, 3rem);
}

.column-preview-copy {
  margin: 20px 0 0;
  color: var(--muted);
}

.column-preview-actions,
.column-article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.column-latest-card,
.column-card {
  min-width: 0;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.column-card-label,
.column-article-category {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin: 0 0 14px;
  padding: 5px 10px;
  color: var(--blue-800);
  font-size: 0.78rem;
  font-weight: 900;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--cyan-100);
}

.column-card-meta,
.column-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.column-latest-card h3,
.column-card h2 {
  margin: 0;
  color: var(--blue-950);
  line-height: 1.45;
}

.column-latest-card h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

.column-card h2 {
  font-size: clamp(1.3rem, 2.1vw, 1.65rem);
}

.column-latest-card > p:last-of-type,
.column-card-excerpt {
  margin: 16px 0 0;
  color: #40516a;
}

.column-text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  color: var(--blue-800);
  font-weight: 900;
}

.column-text-link::after {
  content: "→";
}

.column-text-link:hover,
.column-text-link:focus-visible {
  color: var(--blue-600);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.column-page {
  background: var(--white);
}

.column-container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.column-hero {
  padding: 92px 0 64px;
  background: linear-gradient(180deg, var(--cyan-50), var(--white));
}

.column-hero-inner {
  max-width: 860px;
}

.column-hero h1 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
}

.column-hero-copy {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
}

.column-list-section {
  padding: 56px 0 96px;
}

.column-list-heading {
  margin-bottom: 28px;
}

.column-list-heading h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.column-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.column-card:only-child {
  grid-column: 1 / -1;
  width: min(760px, 100%);
}

.column-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.column-card .column-text-link {
  margin-top: auto;
  padding-top: 20px;
}

.column-breadcrumbs {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 0.88rem;
}

.column-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.column-breadcrumbs li::before {
  content: none;
}

.column-breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 10px;
  color: #91a2b7;
}

.column-breadcrumbs a {
  color: var(--blue-800);
  font-weight: 800;
}

.column-article-hero {
  padding: 64px 0 36px;
  background: linear-gradient(180deg, var(--cyan-50), var(--white));
}

.column-article-heading {
  max-width: 900px;
}

.column-article-heading h1 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(2rem, 4.8vw, 3.65rem);
  line-height: 1.28;
}

.column-article-author {
  margin: 22px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.column-article-section {
  padding: 30px 0 96px;
}

.column-article-body {
  max-width: 800px;
  margin: 0 auto;
  color: #263a55;
  font-size: 1.04rem;
  line-height: 1.95;
}

.column-article-body p {
  margin: 0 0 1.55em;
}

.column-article-body h2 {
  margin: 3.2em 0 1.1em;
  padding-bottom: 12px;
  color: var(--blue-950);
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.45;
  border-bottom: 2px solid var(--line);
}

.column-article-body h2:first-of-type {
  margin-top: 2.2em;
}

.column-article-body strong {
  color: var(--blue-950);
}

.column-references {
  margin-top: 64px;
  padding: clamp(22px, 4vw, 30px);
  color: #526278;
  font-size: 0.92rem;
  line-height: 1.75;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--cyan-50);
}

.column-references h2 {
  margin: 0 0 18px;
  padding: 0;
  color: var(--blue-950);
  font-size: 1.25rem;
  border: 0;
}

.column-references ul {
  display: grid;
  gap: 18px;
  margin: 0;
  padding-left: 20px;
}

.column-references li,
.column-references p {
  margin: 0;
}

.column-references a {
  color: var(--blue-800);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.column-article-cta {
  max-width: 800px;
  margin: 48px auto 0;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid #bdddf1;
  border-radius: 8px;
  background: var(--cyan-50);
}

.column-article-cta h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.4;
}

.column-article-cta p {
  margin: 12px 0 0;
  color: var(--muted);
}

.column-back-link {
  display: inline-flex;
  margin-top: 26px;
  color: var(--blue-800);
  font-weight: 900;
}

.column-back-link:hover,
.column-back-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (max-width: 840px) {
  .column-preview-layout,
  .column-card-grid {
    grid-template-columns: 1fr;
  }

  .column-preview-layout {
    align-items: stretch;
  }
}

@media (max-width: 520px) {
  .column-preview-actions,
  .column-article-actions {
    flex-direction: column;
  }

  .column-preview-actions .button,
  .column-article-actions .button {
    width: 100%;
    min-height: 52px;
  }

  .column-container {
    width: min(100% - 36px, 1120px);
  }

  .column-hero {
    padding: 58px 0 48px;
  }

  .column-list-section {
    padding: 38px 0 68px;
  }

  .column-latest-card,
  .column-card {
    padding: 24px;
  }

  .column-article-hero {
    padding: 42px 0 27px;
  }

  .column-article-section {
    padding: 20px 0 72px;
  }

  .column-article-body {
    font-size: 1rem;
    line-height: 1.9;
  }

  .column-article-body h2 {
    margin-top: 2.6em;
  }
}

@media (max-width: 390px) {
  .column-preview-heading h2 {
    font-size: 1.62rem;
  }

  .column-article-heading h1 {
    font-size: 1.85rem;
  }
}