:root {
    --navy: #042C53;
    --navy-2: #0a3a6b;
    --navy-deep: #021A33;
    --signal: #185FA5;
    --signal-bright: #2A82D9;
    --ink: #0B1A2E;
    --ink-2: #3C4A60;
    --reading: #1a1a1a;
    --muted: #6B7689;
    --line: #E6E4DE;
    --line-strong: #D7D4CB;
    --bg: #ffffff;
    --bg-alt: #F7F6F2;
    --lime: #FF6F5E;
    --serif: 'Source Serif 4', Georgia, serif;
    --cat-seo: #2E6E6E;
    --cat-paid: #B5762F;
    --cat-data: #5C4B7F;
    --cat-strat: #4A6075;
    --cat-social: #B5564C;
  }
  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body { font-family: 'Inter', -apple-system, system-ui, sans-serif; color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; }

  .eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px; font-weight: 600; color: var(--signal); }
  .h-section { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 600; color: var(--navy); margin: 0; text-wrap: balance; }
  .container { max-width: 1240px; margin: 0 auto; padding: 0 28px; }
  section { padding: clamp(48px, 6vw, 88px) 0; }
  .bg-alt { background: var(--bg-alt); }

  /* Buttons */
  .btn { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 18px; border-radius: 8px; font-size: 14.5px; font-weight: 500; letter-spacing: -0.005em; border: 1px solid transparent; transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease; white-space: nowrap; }
  .btn-primary { background: var(--navy); color: #fff; box-shadow: 0 1px 0 rgba(255,255,255,.15) inset, 0 1px 2px rgba(4,44,83,.18); }
  .btn-primary:hover { background: var(--navy-2); transform: translateY(-1px); box-shadow: 0 8px 24px -8px rgba(4,44,83,.45); }
  .btn-on-navy { background: #fff; color: var(--navy); }
  .btn-on-navy:hover { background: #f0eee7; transform: translateY(-1px); }
  .btn-lg { height: 52px; padding: 0 22px; font-size: 15.5px; border-radius: 10px; }

  /* Nav with progress bar */
  .nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line); }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
  .nav-logo img { height: 26px; display: block; }
  .nav-links { display: flex; gap: 4px; align-items: center; }
  .nav-link { padding: 8px 14px; font-size: 14px; font-weight: 500; color: var(--ink-2); border-radius: 6px; transition: color .15s ease, background .15s ease; }
  .nav-link:hover { color: var(--navy); background: rgba(4,44,83,0.04); }
  .nav-link.is-active { color: var(--navy); background: rgba(4,44,83,0.06); }
  .nav-right { display: flex; gap: 8px; align-items: center; }
  .progress-bar {
    height: 2px; background: rgba(4,44,83,0.05);
    position: relative;
  }
  .progress-bar .fill {
    position: absolute; left: 0; top: 0; bottom: 0;
    background: var(--signal);
    width: var(--progress, 0%);
    transition: width 60ms linear;
  }

  /* Cat pill */
  .cat-pill {
    display: inline-flex; align-items: center; gap: 6px;
    height: 26px; padding: 0 12px;
    border-radius: 999px;
    font-size: 11.5px; font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--cat-bg);
    color: var(--cat-fg);
  }
  .cat-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

  /* Article header */
  .article-header {
    padding: clamp(64px, 8vw, 120px) 0 clamp(40px, 5vw, 64px);
    text-align: center;
    background: linear-gradient(180deg, #fbfaf7 0%, #ffffff 80%);
  }
  .article-header .container { max-width: 880px; }
  .article-header .cat-pill { margin: 0 auto 28px; }
  .article-title {
    font-size: clamp(34px, 4.6vw, 56px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 600;
    color: var(--navy);
    margin: 0 0 22px;
    text-wrap: balance;
  }
  .article-dek {
    font-size: clamp(17px, 1.4vw, 21px);
    line-height: 1.45;
    color: var(--ink-2);
    margin: 0 auto 36px;
    max-width: 720px;
    font-weight: 400;
    text-wrap: pretty;
  }
  .article-byline {
    display: inline-flex; align-items: center; gap: 12px;
    font-size: 13.5px;
    color: var(--muted);
  }
  .article-byline .avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--signal-bright), var(--navy));
    color: #fff; font-weight: 600; font-size: 12px;
    display: grid; place-items: center;
  }
  .article-byline .author { color: var(--navy); font-weight: 600; }
  .article-byline .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); display: inline-block; }

  /* Optional hero visual */
  .article-hero-visual {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 28px clamp(32px, 4vw, 48px);
  }
  .article-hero-visual .visual-frame {
    aspect-ratio: 16 / 8;
    max-height: 600px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 30px 60px -40px rgba(11,26,46,.18);
  }

  /* Two-column body */
  .article-body-section {
    padding: clamp(32px, 4vw, 48px) 0 clamp(64px, 8vw, 96px);
  }
  .article-body-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: clamp(40px, 5vw, 80px);
    align-items: flex-start;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 28px;
  }
  .article-body {
    max-width: 680px;
    margin: 0 auto;
    color: var(--reading);
  }
  .article-body p {
    font-size: 18px;
    line-height: 1.7;
    margin: 0 0 1.4em;
    color: var(--reading);
  }
  .article-body p strong { color: var(--ink); font-weight: 600; }
  .article-body a { color: var(--signal); border-bottom: 1px solid rgba(24,95,165,0.32); transition: border-color .15s ease; }
  .article-body a:hover { border-bottom-color: var(--signal); }
  .article-body h2 {
    font-size: 28px;
    line-height: 1.18;
    letter-spacing: -0.02em;
    font-weight: 700;
    color: var(--navy);
    margin: 2em 0 0.6em;
    scroll-margin-top: 100px;
  }
  .article-body h3 {
    font-size: 22px;
    line-height: 1.2;
    letter-spacing: -0.015em;
    font-weight: 600;
    color: var(--navy);
    margin: 1.6em 0 0.5em;
  }
  .article-body ul, .article-body ol {
    padding-left: 22px;
    margin: 0 0 1.4em;
  }
  .article-body li {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 0.6em;
    color: var(--reading);
  }
  .article-body li::marker { color: var(--muted); }

  .pull-quote-inline {
    border-left: 3px solid var(--signal);
    font-family: var(--serif);
    font-style: italic;
    font-size: 24px;
    line-height: 1.4;
    letter-spacing: -0.01em;
    color: var(--navy);
    margin: 2em 0;
    padding: 8px 0 8px 24px;
  }
  .article-body blockquote {
    margin: 1.6em 0;
    padding-left: 20px;
    border-left: 2px solid var(--line-strong);
    font-style: italic;
    color: var(--ink-2);
    font-size: 17px;
    line-height: 1.6;
  }
  .article-body code {
    font-family: 'JetBrains Mono', SFMono-Regular, Menlo, monospace;
    font-size: 14.5px;
    background: var(--bg-alt);
    padding: 1px 6px;
    border-radius: 4px;
    color: var(--navy);
  }
  .article-body pre {
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px 20px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.6;
    margin: 1.6em 0;
  }
  .article-body img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 1.6em 0 0.6em;
  }
  .article-body .figcaption {
    font-size: 13.5px;
    color: var(--muted);
    text-align: center;
    margin-bottom: 1.6em;
  }

  /* Inline CTA mid-article */
  .article-inline-cta {
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 20px 24px;
    margin: 2.4em 0;
    display: flex; justify-content: space-between; align-items: center;
    gap: 24px; flex-wrap: wrap;
  }
  .article-inline-cta p { margin: 0; font-size: 15px; color: var(--ink-2); }
  .article-inline-cta a {
    font-size: 14px; color: var(--signal); font-weight: 500;
    display: inline-flex; align-items: center; gap: 6px;
    border-bottom: none !important;
    white-space: nowrap;
  }
  .article-inline-cta a:hover .arrow-line { transform: translateX(3px); }
  .arrow-line { transition: transform .2s ease; }

  /* Sidebar */
  .article-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 90px; }
  .sidebar-block .label {
    font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--muted); font-weight: 600;
    padding-bottom: 12px; margin-bottom: 12px;
    border-bottom: 1px solid var(--line);
    display: block;
  }
  .toc-list { display: flex; flex-direction: column; gap: 4px; list-style: none; padding: 0; margin: 0; }
  .toc-list a {
    display: block;
    font-size: 13.5px; line-height: 1.45; color: var(--ink-2);
    padding: 6px 0 6px 12px;
    border-left: 2px solid var(--line);
    transition: color .15s ease, border-color .15s ease;
  }
  .toc-list a:hover { color: var(--navy); }
  .toc-list a.is-active {
    color: var(--navy);
    border-left-color: var(--signal);
    font-weight: 500;
  }
  .share-row { display: flex; gap: 8px; }
  .share-btn {
    width: 32px; height: 32px; border-radius: 50%;
    border: 1px solid var(--line);
    background: #fff;
    display: grid; place-items: center;
    color: var(--ink-2);
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
  }
  .share-btn:hover { border-color: var(--navy); color: var(--navy); }
  .share-copied { font-size: 12px; color: #19a974; margin-top: 8px; display: block; min-height: 16px; }

  .sidebar-cta {
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px 20px;
  }
  .sidebar-cta p {
    font-size: 13.5px; line-height: 1.5; color: var(--ink-2);
    margin: 0 0 12px;
  }
  .sidebar-cta a {
    font-size: 13.5px; color: var(--signal); font-weight: 500;
    display: inline-flex; align-items: center; gap: 6px;
  }

  /* Author bio */
  .author-bio {
    max-width: 680px;
    margin: clamp(48px, 6vw, 72px) auto 0;
    padding: 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 18px;
    align-items: flex-start;
  }
  .author-bio .av {
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, var(--signal-bright), var(--navy));
    color: #fff; font-weight: 600; font-size: 18px;
    display: grid; place-items: center;
  }
  .author-bio h4 { font-size: 16px; font-weight: 600; color: var(--navy); letter-spacing: -0.015em; margin: 0 0 4px; }
  .author-bio .role { font-size: 13px; color: var(--muted); margin: 0 0 10px; }
  .author-bio p { font-size: 14.5px; line-height: 1.55; color: var(--ink-2); margin: 0 0 10px; }
  .author-bio a {
    font-size: 13px; color: var(--signal); font-weight: 500;
    display: inline-flex; align-items: center; gap: 6px;
  }

  /* Keep reading */
  .keep-reading { padding: clamp(64px, 8vw, 96px) 0; border-top: 1px solid var(--line); }
  .keep-reading h2 { margin: 0 0 32px; }
  .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .article-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease; cursor: pointer; }
  .article-card:hover { border-color: var(--signal); transform: translateY(-2px); box-shadow: 0 16px 36px -24px rgba(11,26,46,.18); }
  .ac-visual { aspect-ratio: 16 / 9; position: relative; overflow: hidden; }
  .ac-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
  .ac-title { font-size: 17px; line-height: 1.3; letter-spacing: -0.015em; color: var(--navy); font-weight: 600; margin: 0; text-wrap: balance; }
  .ac-meta { display: flex; gap: 12px; align-items: center; font-size: 12px; color: var(--muted); margin-top: auto; padding-top: 4px; }
  .ac-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }

  /* Closing CTA */
  .closing-cta { background: var(--navy); color: #fff; padding: clamp(72px, 9vw, 120px) 0; position: relative; overflow: hidden; text-align: center; }
  .closing-cta::before, .closing-cta::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(255,255,255,0.08); pointer-events: none; }
  .closing-cta::before { width: 720px; height: 720px; top: -240px; left: 50%; transform: translateX(-50%); }
  .closing-cta::after { width: 460px; height: 460px; bottom: -200px; left: 50%; transform: translateX(-50%); border-color: rgba(255,255,255,0.12); }
  .closing-cta-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
  .closing-cta h2 { color: #fff; margin: 0 0 16px; }
  .closing-cta p { font-size: 18px; line-height: 1.55; color: rgba(255,255,255,0.78); margin: 0 0 32px; max-width: 580px; margin-left: auto; margin-right: auto; }
  .closing-cta .alt { display: block; margin-top: 22px; color: rgba(255,255,255,0.62); font-size: 14px; transition: color .15s ease; }
  .closing-cta .alt:hover { color: #fff; }

  /* Footer */
  footer { background: var(--navy-deep); color: rgba(255,255,255,0.7); padding: 80px 0 32px; }
  .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; }
  footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em; color: rgba(255,255,255,0.5); font-weight: 600; margin: 0 0 18px; }
  footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
  footer a:hover { color: #fff; }
  .footer-brand img { height: 28px; filter: brightness(0) invert(1); margin-bottom: 16px; }
  .footer-brand p { font-size: 13.5px; line-height: 1.55; color: rgba(255,255,255,0.55); max-width: 320px; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 64px; padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 13px; color: rgba(255,255,255,0.45); }

  /* Inline-TOC for mobile */
  .mobile-toc {
    display: none;
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px 20px;
    margin: 0 0 28px;
  }
  .mobile-toc summary {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
  }
  .mobile-toc summary::-webkit-details-marker { display: none; }
  .mobile-toc[open] summary { padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
  .mobile-toc .toc-list a { font-size: 14px; padding: 4px 0 4px 12px; }

  /* Responsive */
  @media (max-width: 1000px) {
    .article-body-grid { grid-template-columns: 1fr; max-width: 720px; }
    .article-sidebar { position: static; flex-direction: column; }
    .mobile-toc { display: block; }
    .article-sidebar .toc-block { display: none; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .nav-links { display: none; }
  }
  @media (max-width: 640px) {
    .article-body p, .article-body li { font-size: 17px; }
    .author-bio { grid-template-columns: 48px 1fr; padding: 22px; }
    .author-bio .av { width: 48px; height: 48px; font-size: 16px; }
    .footer-grid { grid-template-columns: 1fr; }
  }

  /* Print */
  @media print {
    .nav, .progress-bar, .article-sidebar, .mobile-toc, .article-inline-cta, .keep-reading, .closing-cta, footer { display: none !important; }
    .article-body-grid { grid-template-columns: 1fr; max-width: 720px; }
    .article-header { background: none; padding: 24px 0; }
    body { font-size: 11pt; color: #000; }
    .article-body p, .article-body li { font-size: 11pt; color: #000; line-height: 1.5; }
    .article-title { color: #000; font-size: 22pt; }
    a { color: #000; border-bottom: none; }
  }


.svc-dd { position: relative; display: inline-flex; }
.svc-dd-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px 8px 14px;
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  border-radius: 6px;
  background: transparent; border: 0;
  cursor: pointer;
  font-family: inherit;
  transition: color .15s ease, background .15s ease;
}
.svc-dd-trigger:hover,
.svc-dd[data-open="true"] .svc-dd-trigger { color: var(--navy); background: rgba(4,44,83,0.04); }
.svc-dd-trigger.is-active { color: var(--navy); }
.svc-dd-chev {
  width: 10px; height: 10px;
  transition: transform .18s ease;
  opacity: 0.7;
}
.svc-dd[data-open="true"] .svc-dd-chev { transform: rotate(180deg); opacity: 1; }

.svc-dd-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: min(640px, calc(100vw - 32px));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 24px 48px -16px rgba(4,44,83,0.22),
    0 4px 12px -4px rgba(4,44,83,0.10);
  padding: 14px;
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.svc-dd[data-open="true"] .svc-dd-panel {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
  visibility: visible;
}
/* Pointer notch */
.svc-dd-panel::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px;
  background: #fff;
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  border-top-left-radius: 3px;
}
/* Invisible hover bridge so the panel doesn't drop when crossing the gap */
.svc-dd-panel::after {
  content: "";
  position: absolute;
  top: -14px; left: 0; right: 0; height: 14px;
}

.svc-dd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.svc-dd-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  transition: background .14s ease;
}
.svc-dd-item:hover { background: var(--bg-alt); }
.svc-dd-item.is-active {
  background: rgba(24,95,165,0.06);
}
.svc-dd-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--bg-alt);
  color: var(--signal);
  display: grid; place-items: center;
  flex-shrink: 0;
  transition: background .14s ease, color .14s ease;
}
.svc-dd-item:hover .svc-dd-icon {
  background: var(--navy);
  color: #fff;
}
.svc-dd-item.is-active .svc-dd-icon {
  background: var(--signal);
  color: #fff;
}
.svc-dd-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.005em;
}
.svc-dd-blurb {
  display: block;
  margin-top: 3px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.4;
}

.svc-dd-footer {
  margin-top: 6px;
  padding: 12px 14px 4px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.svc-dd-footer .all-link {
  font-size: 13px; font-weight: 500;
  color: var(--navy);
  display: inline-flex; align-items: center; gap: 6px;
}
.svc-dd-footer .all-link:hover { color: var(--signal); }
.svc-dd-footer .all-link svg { transition: transform .15s ease; }
.svc-dd-footer .all-link:hover svg { transform: translateX(2px); }
.svc-dd-footer .audit-link {
  font-size: 12.5px;
  color: var(--muted);
}
.svc-dd-footer .audit-link strong { color: var(--navy); font-weight: 600; }

@media (max-width: 1100px) {
  .svc-dd-panel { display: none; }
}