:root {
  --bg: #f6f1e8;
  --bg-soft: #fbf8f3;
  --surface: rgba(255, 255, 255, 0.96);
  --surface-strong: #ffffff;
  --border: #ddd3c2;
  --ink: #1f2937;
  --muted: #5f6b7a;
  --muted-strong: #334155;
  --accent: #0b5cab;
  --accent-strong: #083d77;
  --accent-soft: #e8f1fb;
  --gold: #a86b00;
  --shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 10px 26px rgba(15, 23, 42, 0.05);
  --radius: 22px;
  --content-width: 800px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
  line-height: 1.8;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-strong);
}

img {
  display: block;
  max-width: 100%;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 56px;
}

.page-shell {
  width: 100%;
  margin: 0 auto;
}

.site-header {
  padding: 26px 0;
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding-left: 76px;
  font-family: "Inter", sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  color: #4d6da8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand img {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 65px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #e4e8f0;
  box-shadow: 0 8px 18px rgba(36, 51, 84, 0.08);
  background: #fff;
}

.nav-links,
.footer-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-family: "Inter", sans-serif;
  font-size: 0.96rem;
  color: #6d7381;
}

.nav-links a,
.footer-nav a {
  color: inherit;
}

.nav-links a:hover,
.footer-nav a:hover {
  color: #4d6da8;
}

.hero {
  padding: 56px 0 34px;
}

.hero-card,
.article-hero-copy,
.article-hero-media,
.card,
.article-card,
.toc-card,
.content-card,
.related-card {
  background: var(--surface);
  border: 1px solid rgba(221, 211, 194, 0.95);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.hero-card {
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
}

.hero-copy,
.hero-media,
.article-hero-copy,
.article-hero-media,
.content-card,
.toc-card {
  padding: 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero h1,
.article-title,
.section-heading,
.card h3,
.article-card h3,
.related-card h3,
.toc-card h2,
.content-card h2,
.content-card h3 {
  font-family: "Merriweather", serif;
}

.hero h1,
.article-title {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(2.35rem, 5vw, 4rem);
}

.hero p,
.article-standfirst,
.section-intro,
.article-card p,
.card p,
.content-card p,
.content-card li,
.author-copy span,
.author-copy a,
.reading-meta,
.toc-card ol,
.related-card p,
.hero-media p {
  color: var(--muted);
}

.article-hero-media p {
  display: none;
}

.hero p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
}

.button-primary {
  background: var(--accent);
  color: #ffffff;
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
  border-color: var(--border);
}

.hero-media {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(180deg, #f4f7fb 0%, #eef3f8 100%);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.metric {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(11, 92, 171, 0.12);
}

.metric strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.28rem;
  color: var(--ink);
}

.metric span {
  color: var(--muted);
  font-size: 0.94rem;
}

.hero-portrait {
  overflow: hidden;
  border-radius: 22px;
  min-height: 320px;
}

.hero-portrait img,
.article-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  padding: 34px 0;
}

.section-heading {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-intro {
  margin: 0;
  max-width: 70ch;
  font-size: 1.05rem;
}

.card-grid,
.article-list,
.related-grid {
  display: grid;
  gap: 22px;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 30px;
}

.card {
  padding: 24px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.article-list {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  margin-top: 28px;
}

.article-card {
  overflow: hidden;
}

.article-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-card-body {
  padding: 24px;
}

.article-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-kicker {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 0.78rem;
}

.article-card h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

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

.article-page {
  padding: 40px 0 54px;
}

.article-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
  gap: 28px;
  align-items: stretch;
}

.article-hero-copy,
.article-hero-media {
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.article-hero-copy {
  background: rgba(255, 255, 255, 0.94);
}

.article-title {
  margin: 14px 0 18px;
  font-size: clamp(2.15rem, 4vw, 3.2rem);
}

.article-standfirst {
  margin: 0;
  max-width: 62ch;
  font-size: 1.12rem;
}

.author-block {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(221, 211, 194, 0.95);
  flex-wrap: wrap;
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
}

.author-copy strong {
  display: block;
  font-size: 1rem;
}

.reading-meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 18px;
  font-size: 0.95rem;
}

.article-hero-media {
  background: linear-gradient(180deg, #f7f9fc 0%, #eef4f8 100%);
}

.article-hero-media img {
  aspect-ratio: 4 / 3;
  border-radius: 20px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, var(--content-width));
  gap: 28px;
  align-items: start;
  margin-top: 28px;
}

.toc-card {
  position: sticky;
  top: 92px;
}

.toc-card h2 {
  margin: 0 0 14px;
  font-size: 1.16rem;
}

.toc-card ol {
  margin: 0;
  padding-left: 20px;
}

.toc-card li + li,
.content-card li + li {
  margin-top: 10px;
}

.toc-card a {
  color: var(--muted-strong);
}

.content-card section + section {
  margin-top: 36px;
}

.content-card h2 {
  margin: 0 0 14px;
  font-size: 1.78rem;
}

.content-card h3 {
  margin: 24px 0 10px;
  font-size: 1.22rem;
}

.content-card ul,
.content-card ol {
  padding-left: 22px;
}

.content-card p,
.content-card li {
  font-size: 1.06rem;
  color: var(--muted-strong);
}

.diagram {
  margin: 24px 0;
  padding: 20px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(232, 241, 251, 0.9), rgba(255, 255, 255, 0.96));
}

.diagram figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

pre {
  overflow-x: auto;
  padding: 18px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 18px;
  background: #102033;
  color: #e2e8f0;
  font-size: 0.93rem;
  line-height: 1.6;
}

code {
  font-family: "IBM Plex Mono", monospace;
}

p code,
li code {
  padding: 2px 6px;
  border-radius: 6px;
  color: var(--accent-strong);
  background: rgba(11, 92, 171, 0.08);
}

blockquote {
  margin: 22px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--accent);
  border-radius: 0 18px 18px 0;
  background: rgba(11, 92, 171, 0.06);
  color: #1e3a5f;
}

.callout {
  padding: 20px 22px;
  border: 1px solid rgba(168, 107, 0, 0.18);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(168, 107, 0, 0.06), rgba(255, 255, 255, 0.94));
}

.related-section {
  margin-top: 40px;
}

.related-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.related-card {
  padding: 20px;
}

.related-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.site-footer {
  padding-top: 20px;
  color: #6d7381;
  font-family: "Inter", sans-serif;
  font-size: 0.88rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .article-hero,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .toc-card {
    position: static;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 0 14px 42px;
  }

  .site-header {
    padding: 18px 0;
  }

  .hero-copy,
  .hero-media,
  .article-hero-copy,
  .article-hero-media,
  .content-card,
  .toc-card {
    padding: 20px;
  }

  .header-inner,
  .footer-inner {
    align-items: flex-start;
    gap: 12px;
  }

  .brand {
    min-height: 30px;
    padding-left: 62px;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
  }

  .brand img {
    width: 52px;
    height: 52px;
  }

  .nav-links {
    width: 100%;
    flex-wrap: nowrap;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    white-space: nowrap;
    padding: 9px 12px;
    border: 1px solid rgba(11, 92, 171, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
  }

  .hero h1,
  .article-title {
    line-height: 1.22;
  }

  .article-page {
    padding: 24px 0 38px;
  }

  .article-hero,
  .article-layout {
    gap: 18px;
  }

  .article-title {
    font-size: clamp(1.9rem, 8vw, 2.45rem);
  }

  .article-standfirst {
    font-size: 1rem;
  }

  .reading-meta {
    gap: 10px;
    font-size: 0.9rem;
  }

  .author-block {
    align-items: flex-start;
    gap: 12px;
    margin-top: 22px;
    padding-top: 18px;
  }

  .article-hero-media img {
    aspect-ratio: 16 / 10;
  }

  .toc-card {
    display: none;
  }

  .content-card section + section {
    margin-top: 28px;
  }

  .content-card h2 {
    font-size: 1.48rem;
  }

  .content-card h3 {
    font-size: 1.12rem;
  }

  .content-card p,
  .content-card li {
    font-size: 1rem;
  }

  .article-page .article-table {
    min-width: 620px;
  }

  .article-page .article-table th,
  .article-page .article-table td {
    padding: 12px !important;
    font-size: 0.94rem;
  }

  blockquote,
  .callout,
  pre {
    padding: 16px;
  }

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

.nav-links a[aria-current="page"],
.footer-nav a[aria-current="page"] {
  color: #4d6da8;
  font-weight: 600;
}

.site-footer a,
.site-end a,
.footer-inner a {
  color: inherit;
}

.site-footer a:hover,
.site-end a:hover,
.footer-inner a:hover,
.footer-linkedin:hover {
  color: var(--accent, #4d6da8);
}

.footer-linkedin {
  font-weight: 600;
}