.article-hero {
  padding: 56px 0 68px;
  background:
    radial-gradient(circle at 88% 16%, rgba(73, 169, 173, 0.2), transparent 34%),
    linear-gradient(145deg, #f7fcfc 0%, #edf7f6 100%);
}

.article-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 56px;
  align-items: center;
}

.article-hero h1 {
  max-width: 880px;
  margin: 14px 0 22px;
  font-size: clamp(38px, 5.6vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0 0 22px;
  color: var(--case-muted);
  font-size: 14px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-meta span + span::before {
  width: 4px;
  height: 4px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--case-accent);
  content: "";
}

.article-hero__media {
  position: relative;
  overflow: hidden;
  min-height: 480px;
  margin: 0;
  border: 10px solid rgba(255, 255, 255, 0.86);
  border-radius: 30px;
  box-shadow: var(--case-shadow-lg);
}

.article-hero__media img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 48px;
  align-items: start;
}

.article-body {
  min-width: 0;
  font-size: 18px;
  line-height: 1.78;
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body h2 {
  margin: 58px 0 18px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.article-body h3 {
  margin: 34px 0 12px;
  font-size: 24px;
  line-height: 1.25;
}

.article-body p,
.article-body ul,
.article-body ol {
  margin: 0 0 20px;
}

.article-body ul,
.article-body ol {
  padding-left: 24px;
}

.article-body li + li {
  margin-top: 9px;
}

.article-body a {
  color: var(--case-primary);
  font-weight: 700;
}

.article-body a:hover {
  color: var(--case-accent-dark);
}

.article-toc {
  position: sticky;
  top: 106px;
  padding: 24px;
  border: 1px solid var(--case-border);
  border-radius: 22px;
  background: #ffffff;
  box-shadow: var(--case-shadow-sm);
}

.article-toc strong {
  display: block;
  margin-bottom: 13px;
  color: var(--case-heading);
  font-family: var(--case-font-heading);
  font-size: 18px;
}

.article-toc a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid rgba(19, 74, 98, 0.08);
  color: var(--case-muted);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.4;
  text-decoration: none;
}

.article-toc a:last-child {
  border-bottom: 0;
}

.article-toc a:hover {
  color: var(--case-primary);
}

.article-note {
  margin: 28px 0;
  padding: 24px 26px;
  border-left: 5px solid var(--case-accent);
  border-radius: 0 20px 20px 0;
  background: #eef9f8;
  color: var(--case-heading);
}

.article-note strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--case-font-heading);
}

.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0 34px;
  border: 1px solid var(--case-border);
  border-radius: 20px;
  background: #ffffff;
  box-shadow: var(--case-shadow-sm);
}

.article-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.55;
}

.article-table th,
.article-table td {
  padding: 18px;
  border-right: 1px solid var(--case-border);
  border-bottom: 1px solid var(--case-border);
  text-align: left;
  vertical-align: top;
}

.article-table th:last-child,
.article-table td:last-child {
  border-right: 0;
}

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

.article-table th {
  color: #ffffff;
  background: var(--case-primary);
  font-family: var(--case-font-heading);
  font-size: 14px;
}

.article-table td:first-child {
  color: var(--case-heading);
  font-weight: 750;
}

.article-photo-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0 42px;
}

.article-photo-row img {
  width: 100%;
  height: 230px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: var(--case-shadow-sm);
}

.article-check {
  margin: 28px 0;
  padding: 28px;
  border: 1px solid var(--case-border);
  border-radius: 22px;
  background: #ffffff;
  box-shadow: var(--case-shadow-sm);
}

.article-check h3 {
  margin-top: 0;
}

.article-check ul {
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
}

.article-check li {
  position: relative;
  padding-left: 30px;
}

.article-check li::before {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--case-accent-dark);
  font-weight: 900;
  content: "✓";
}

.article-case {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  margin: 34px 0;
  padding: 24px;
  border-radius: 26px;
  background: linear-gradient(145deg, #123f55 0%, #1e6078 100%);
  color: #ffffff;
  box-shadow: var(--case-shadow-lg);
}

.article-case img {
  width: 100%;
  height: 180px;
  border-radius: 18px;
  object-fit: cover;
}

.article-case h3 {
  margin: 0 0 10px;
  color: #ffffff;
}

.article-case p {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.84);
}

.article-case a {
  color: #ffffff;
}

.article-faq {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.article-faq details {
  padding: 20px 22px;
  border: 1px solid var(--case-border);
  border-radius: 18px;
  background: #ffffff;
}

.article-faq summary {
  cursor: pointer;
  color: var(--case-heading);
  font-family: var(--case-font-heading);
  font-size: 18px;
  font-weight: 750;
}

.article-faq details p {
  margin: 14px 0 0;
  color: var(--case-muted);
  font-size: 16px;
}

.article-sources {
  margin-top: 46px;
  padding-top: 24px;
  border-top: 1px solid var(--case-border);
  color: var(--case-muted);
  font-size: 14px;
}

.article-sources strong {
  color: var(--case-heading);
}

@media (max-width: 920px) {
  .article-hero__grid,
  .article-shell {
    grid-template-columns: 1fr;
  }

  .article-hero__media {
    min-height: 360px;
  }

  .article-hero__media img {
    min-height: 360px;
  }

  .article-toc {
    position: static;
    order: -1;
  }
}

@media (max-width: 640px) {
  .article-hero {
    padding: 34px 0 50px;
  }

  .article-hero__grid {
    gap: 32px;
  }

  .article-hero h1 {
    font-size: 35px;
  }

  .article-meta {
    display: grid;
    gap: 6px;
  }

  .article-meta span + span::before {
    display: none;
  }

  .article-hero__media,
  .article-hero__media img {
    min-height: 280px;
  }

  .article-body {
    font-size: 17px;
  }

  .article-body h2 {
    margin-top: 44px;
  }

  .article-photo-row {
    grid-template-columns: 1fr;
  }

  .article-photo-row img {
    height: 250px;
  }

  .article-case {
    grid-template-columns: 1fr;
  }

  .article-case img {
    height: 220px;
  }
}