:root {
  --ink: #091c3a;
  --text: #29384d;
  --muted: #657489;
  --line: #d9e0e9;
  --soft: #f5f7fa;
  --blue: #0d5bea;
  --white: #ffffff;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.68;
}

img {
  max-width: 100%;
}

a {
  color: var(--blue);
  text-underline-offset: 3px;
}

.blog-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.blog-site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.blog-header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.blog-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.blog-brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.blog-brand strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.15;
}

.blog-brand small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.blog-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.blog-nav a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.blog-nav a:hover,
.blog-nav a[aria-current="page"] {
  color: var(--blue);
}

.blog-index-hero {
  padding: 62px 0 42px;
  border-bottom: 1px solid var(--line);
}

.blog-kicker {
  display: block;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.blog-index-hero h1,
.article-head h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -.045em;
}

.blog-index-hero p {
  max-width: 800px;
  margin: 20px 0 0;
  color: var(--text);
  font-size: 19px;
}

.blog-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.blog-category-nav a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.blog-category-nav a:hover {
  color: var(--blue);
}

.blog-index-main {
  padding: 42px 0 72px;
}

.blog-section-title {
  margin: 0 0 22px;
  color: var(--ink);
  font-size: 28px;
  letter-spacing: -.02em;
}

.blog-list {
  border-top: 1px solid var(--line);
}

.blog-list-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 150px;
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.blog-list-meta {
  color: var(--muted);
  font-size: 13px;
}

.blog-list-meta strong {
  display: block;
  color: var(--blue);
  font-size: 12px;
  text-transform: uppercase;
}

.blog-list-copy h2 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 25px;
  line-height: 1.18;
  letter-spacing: -.02em;
}

.blog-list-copy h2 a {
  color: var(--ink);
  text-decoration: none;
}

.blog-list-copy h2 a:hover {
  color: var(--blue);
}

.blog-list-copy p {
  margin: 0;
}

.blog-list-action {
  justify-self: end;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 2px solid var(--blue);
}

.blog-note {
  margin-top: 36px;
  padding-top: 18px;
  color: var(--muted);
  font-size: 14px;
  border-top: 3px solid var(--ink);
}

.article-breadcrumb {
  padding: 18px 0;
  color: var(--muted);
  font-size: 13px;
  border-bottom: 1px solid var(--line);
}

.article-breadcrumb a {
  color: var(--ink);
  text-decoration: none;
}

.article-head {
  padding: 46px 0 30px;
}

.article-head h1 {
  max-width: 1000px;
  font-size: clamp(38px, 5.2vw, 62px);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.article-lead {
  max-width: 900px;
  margin: 22px 0 0;
  color: var(--text);
  font-size: 20px;
  line-height: 1.55;
}

.article-cover {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto 34px;
  border: 1px solid var(--line);
}

.article-cover img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(240px, 320px);
  gap: 70px;
  align-items: start;
  padding-bottom: 72px;
}

.article-body h2 {
  scroll-margin-top: 24px;
  margin: 44px 0 14px;
  padding-top: 4px;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -.025em;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p {
  margin: 0 0 16px;
}

.article-body ul,
.article-body ol {
  margin: 12px 0 22px;
  padding-left: 24px;
}

.article-body li {
  margin: 7px 0;
}

.article-summary {
  margin: 0 0 32px;
  padding: 20px 22px;
  background: var(--soft);
  border-left: 4px solid var(--blue);
}

.article-summary strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
}

.article-sidebar {
  position: sticky;
  top: 20px;
}

.article-sidebar-box {
  padding: 20px 0;
  border-top: 3px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.article-sidebar-box + .article-sidebar-box {
  margin-top: 28px;
}

.article-sidebar-box h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 17px;
}

.article-sidebar-box ol,
.article-sidebar-box ul {
  margin: 0;
  padding-left: 20px;
}

.article-sidebar-box li {
  margin: 8px 0;
  font-size: 14px;
}

.article-sidebar-box a {
  color: var(--ink);
}

.article-cta {
  margin-top: 42px;
  padding: 24px;
  border: 1px solid var(--ink);
}

.article-cta h2 {
  margin: 0 0 8px;
  font-size: 23px;
}

.article-cta p {
  margin: 0 0 15px;
}

.article-cta a {
  display: inline-block;
  padding: 11px 16px;
  color: var(--white);
  background: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.article-sources {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.article-sources h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.related-articles {
  margin-top: 40px;
  padding-top: 25px;
  border-top: 3px solid var(--ink);
}

.related-articles h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

.related-articles ul {
  margin: 0;
  padding-left: 20px;
}

.related-articles li {
  margin: 8px 0;
}

.blog-site-footer {
  background: var(--soft);
  border-top: 1px solid var(--line);
}

.blog-footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 32px 0;
  color: var(--muted);
  font-size: 13px;
}

.blog-footer-inner a {
  color: var(--ink);
}

@media (max-width: 900px) {
  .blog-header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .blog-nav {
    gap: 10px 16px;
  }

  .blog-list-item {
    grid-template-columns: 1fr;
  }

  .blog-list-action {
    justify-self: start;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .article-sidebar {
    position: static;
  }
}

@media (max-width: 600px) {
  .blog-shell {
    width: calc(100% - 28px);
  }

  .blog-index-hero {
    padding: 42px 0 30px;
  }

  .blog-index-hero h1,
  .article-head h1 {
    font-size: 38px;
  }

  .blog-index-hero p,
  .article-lead {
    font-size: 17px;
  }

  .article-cover {
    width: 100%;
    border-left: 0;
    border-right: 0;
  }

  .article-body h2 {
    font-size: 26px;
  }

  .blog-footer-inner {
    flex-direction: column;
  }
}