.article-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 26px 72px;
}

.article-shell article {
  max-width: 780px;
  margin: 0 auto;
}

.article-hero {
  padding: 34px 0 26px;
  text-align: left;
}

.article-kicker,
.section-label {
  margin: 0 0 14px;
  color: var(--blue-d);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.article-hero h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(42px, 7.2vw, 72px);
  line-height: 1.01;
  letter-spacing: -.045em;
}

.article-dek {
  max-width: 42em;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.55;
}

.disclosure {
  margin: 30px 0;
  padding: 18px 20px;
  border: 1px solid #bfd2f7;
  border-left: 5px solid var(--blue);
  border-radius: 0 16px 16px 0;
  background: #f7faff;
  color: #394b65;
  font-size: 15px;
}

.disclosure strong {
  color: var(--ink);
}

.article-hero-visual {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 28px 60px -42px rgba(19, 36, 59, .5);
}

.article-section {
  margin: 76px 0 0;
}

.article-section h2 {
  margin: 0 0 20px;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.14;
  letter-spacing: -.035em;
}

.article-section h3 {
  margin: 38px 0 10px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -.02em;
}

.article-section p,
.article-section li {
  color: var(--muted);
  font-size: 17px;
}

.article-section p {
  margin: 0 0 18px;
}

.article-section strong {
  color: var(--ink);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 18px;
}

.metric-card {
  min-height: 166px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 34px -28px rgba(19, 36, 59, .35);
}

.metric-card span,
.metric-card small {
  display: block;
}

.metric-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.metric-card strong {
  display: block;
  margin: 13px 0 10px;
  font-size: 30px;
  letter-spacing: -.04em;
}

.metric-card small {
  color: #6d7b8f;
  font-size: 12px;
  line-height: 1.45;
}

.metric-card-primary {
  border-color: var(--blue);
  background: var(--blue);
}

.metric-card-primary span,
.metric-card-primary strong,
.metric-card-primary small {
  color: #fff;
}

.subset-callout {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  margin: 18px 0 26px;
  padding: 24px;
  border: 1px solid #ffd6ca;
  border-radius: 18px;
  background: #fff8f5;
}

.subset-callout span,
.subset-callout strong {
  display: block;
}

.subset-callout span {
  color: #86503f;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.subset-callout strong {
  margin-top: 8px;
  color: #7a321f;
  font-size: 25px;
  letter-spacing: -.03em;
}

.subset-callout p {
  margin: 0;
  color: #6f4a40;
  font-size: 15px;
}

.diagram-card {
  margin: 30px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}

.diagram-card img {
  display: block;
  width: 100%;
  height: auto;
  background: #f8faff;
}

.diagram-card figcaption {
  padding: 15px 18px;
  border-top: 1px solid var(--line);
  color: #68768a;
  font-size: 13px;
  line-height: 1.5;
}

.article-section-wide {
  width: min(1040px, calc(100vw - 52px));
  margin-left: 50%;
  transform: translateX(-50%);
}

.benchmark-table-region {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  outline: none;
  box-shadow: 0 22px 50px -40px rgba(19, 36, 59, .4);
}

.benchmark-table-region:focus-visible {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .22);
}

.benchmark-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.benchmark-table caption {
  padding: 16px 18px;
  color: #617086;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
}

.benchmark-table th,
.benchmark-table td {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}

.benchmark-table thead th {
  border-top: 0;
  background: var(--ink);
  color: #fff;
  font-size: 12px;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.benchmark-table thead th:first-child,
.benchmark-table thead th:nth-child(2),
.benchmark-table tbody th,
.benchmark-table tbody td:nth-child(2) {
  text-align: left;
}

.benchmark-table tbody th {
  color: var(--ink);
  font-weight: 700;
}

.benchmark-table tbody td {
  color: #59687d;
}

.benchmark-table tbody tr:nth-child(even) {
  background: #f8fafd;
}

.benchmark-table tbody tr:hover {
  background: var(--soft);
}

.data-note {
  margin-top: 18px !important;
  font-size: 14px !important;
}

.data-note code {
  overflow-wrap: anywhere;
  color: #37465c;
  font-size: 12px;
}

.limitations {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
}

.limitations ul {
  margin: 0;
  padding-left: 22px;
}

.limitations li + li {
  margin-top: 14px;
}

.conclusion {
  padding-top: 28px;
  border-top: 3px solid var(--ink);
}

.article-section a,
.data-note a {
  color: var(--blue-d);
  font-weight: 700;
}

@media (max-width: 760px) {
  .article-shell {
    padding: 16px 20px 54px;
  }

  .article-hero {
    padding-top: 24px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .subset-callout {
    grid-template-columns: 1fr;
  }

  .article-section-wide {
    width: calc(100vw - 40px);
  }
}

@media (max-width: 420px) {
  .article-shell {
    padding-right: 16px;
    padding-left: 16px;
  }

  .article-hero h1 {
    font-size: 40px;
  }

  .article-dek,
  .article-section p,
  .article-section li {
    font-size: 16px;
  }

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

  .metric-card {
    min-height: 0;
  }

  .article-section-wide {
    width: calc(100vw - 32px);
  }

  .limitations {
    padding: 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}