/* ChristEye static research article: no frameworks, JavaScript, or build step. */
:root {
  color-scheme: light;
  --ink: #1b3345;
  --muted: #5b6e7e;
  --navy: #102b3d;
  --teal: #187e7c;
  --gold: #ca9141;
  --border: #dce6e9;
  --soft: #f3f7f7;
  --paper: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.75 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: #126b72; text-underline-offset: 3px; }
a:hover { color: #0d4e54; }
a:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; border-radius: 2px; }
.skip-link { position: absolute; left: -9999px; top: 10px; z-index: 10; background: white; padding: 8px 16px; }
.skip-link:focus { left: 16px; }
.site-header { background: var(--navy); border-bottom: 1px solid rgba(255,255,255,.13); }
.site-header-inner { min-height: 70px; max-width: 1360px; margin: auto; padding: 12px 34px; display: flex; align-items: center; gap: 22px; }
.wordmark { color: #fff; font-size: 21px; font-weight: 760; letter-spacing: -.04em; text-decoration: none; white-space: nowrap; }
.wordmark:hover, .header-link:hover { color: #fff; }
.brand-symbol { display: inline-grid; place-items: center; width: 32px; height: 32px; margin-right: 6px; color: #fff; border-radius: 50%; background: var(--teal); font-size: 20px; }
.company-name { color: #adbdc6; font-size: 11px; font-weight: 700; letter-spacing: .13em; }
.header-link { margin-left: auto; color: #d5e6e9; font-size: 13px; text-decoration: none; white-space: nowrap; }
.hero { background: radial-gradient(circle at 80% 20%, #1b5360 0, transparent 36%), linear-gradient(135deg, #102b3d 0%, #153847 100%); color: #fff; }
.hero-inner { max-width: 1192px; margin: 0 auto; padding: 86px 34px 82px; }
.eyebrow { margin: 0 0 20px; color: #7ed0c6; font-size: 12px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1 { margin: 0; max-width: 960px; font-size: clamp(38px, 5.2vw, 66px); line-height: 1.13; letter-spacing: -.045em; font-weight: 780; }
h1 span { color: #d4e5e5; }
.hero-subtitle { max-width: 790px; margin: 28px 0 26px; font-size: clamp(17px, 2.1vw, 20px); line-height: 1.7; color: #d0e0e3; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 9px; }
.hero-meta span { padding: 5px 11px; border: 1px solid rgba(217,237,240,.26); border-radius: 999px; color: #d9e9eb; font-size: 12px; }
.site-layout { max-width: 1280px; margin: 0 auto; padding: 60px 34px 88px; display: grid; grid-template-columns: 255px minmax(0,1fr); gap: clamp(36px, 5.2vw, 82px); align-items: start; }
.sidebar { min-width: 0; }
.toc { position: sticky; top: 32px; max-height: calc(100vh - 60px); overflow: auto; padding: 3px 14px 12px 0; scrollbar-width: thin; }
.toc-title { margin: 0 0 13px; color: var(--muted); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.toc-link { display: block; padding: 7px 10px; margin: 1px 0; border-left: 2px solid transparent; border-radius: 0 6px 6px 0; text-decoration: none; font-size: 12px; line-height: 1.55; color: #526977; }
.toc-link:hover, .toc-link:focus { color: #146b6f; background: #eff7f7; border-left-color: var(--teal); }
.article { min-width: 0; max-width: 850px; }
.article > p { margin-top: 0; }
.article p { margin-bottom: 1.25em; }
.article .abstract { font-size: 18px; color: #3f5867; }
.article-section { margin-top: 64px; }
.article-section h2 { margin: 0 0 20px; padding-top: 7px; color: var(--navy); font-size: clamp(24px, 2.8vw, 31px); line-height: 1.25; font-weight: 750; letter-spacing: -.03em; }
.article-section p:first-of-type { margin-top: 0; }
.article-figure { margin: 28px 0 34px; }
.article-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--border); border-radius: 9px; background: white; }
figcaption { margin-top: 11px; font-size: 13px; color: var(--muted); line-height: 1.6; }
.callout { margin: 27px 0 32px; padding: 23px 27px 22px; background: var(--soft); border-left: 4px solid var(--teal); border-radius: 0 8px 8px 0; }
.callout-label { margin: 0 0 9px !important; color: #0f7477; font-size: 12px; font-weight: 820; letter-spacing: .12em; text-transform: uppercase; }
.callout p:last-child { margin: 0; color: #263f4f; font-size: 16px; }
.ownership { padding: 11px 16px; color: var(--muted); font-size: 12px; line-height: 1.55; background: #f7f9f9; border-radius: 6px; }
.table-wrap { width: 100%; margin: 28px 0; overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; line-height: 1.55; }
th { padding: 13px 15px; background: #eaf2f3; color: var(--navy); text-align: left; font-size: 12px; font-weight: 790; vertical-align: top; }
td { padding: 13px 15px; border-top: 1px solid var(--border); vertical-align: top; }
td:first-child { color: #203e4b; font-weight: 680; }
tr:nth-child(even) td { background: #fbfdfd; }
.process-list { margin: 19px 0 27px; padding-left: 30px; }
.process-list li { padding: 0 0 10px 7px; }
.process-list li::marker { color: var(--teal); font-weight: 800; }
.article-section .reference { margin: 0 0 13px; padding-left: 0; font-size: 14px; overflow-wrap: anywhere; }
.article-section .reference a { overflow-wrap: anywhere; }
.site-footer { background: #f3f7f7; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1280px; margin: auto; padding: 26px 34px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.footer-inner p { margin: 0; }
.footer-inner a { margin-left: auto; }
@media (max-width: 900px) {
  .site-layout { display: block; padding-top: 40px; }
  .sidebar { margin: 0 0 36px; }
  .toc { position: static; max-height: none; padding: 16px 18px; background: var(--soft); border-radius: 8px; }
  .toc-title { margin-bottom: 6px; }
  .toc-link { display: inline-block; max-width: 100%; margin: 1px 3px 1px 0; padding: 5px 7px; }
}
@media (max-width: 540px) {
  body { font-size: 16px; }
  .site-header-inner { padding: 12px 20px; gap: 10px; }
  .company-name { display: none; }
  .header-link { font-size: 12px; }
  .hero-inner { padding: 60px 22px; }
  h1 br { display: none; }
  .site-layout { padding: 28px 19px 66px; }
  .article-section { margin-top: 49px; }
  .callout { padding: 19px 20px; }
  th, td { padding: 11px; }
  .footer-inner { padding: 25px 20px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .site-header, .sidebar, .site-footer, .skip-link { display: none !important; }
  .hero { color: #182f3e; background: white; }
  .hero-inner { padding: 0 0 25px; }
  h1 span, .hero-subtitle, .eyebrow { color: inherit; }
  .hero-meta span { color: inherit; border-color: #aaa; }
  .site-layout { display: block; padding: 0; }
  .article { max-width: none; }
  .article-figure, table, .callout { break-inside: avoid; }
  a { color: inherit; }
}