:root {
  --paper: #f7fbfc;
  --ink: #0b2034;
  --blue: #84c8de;
  --blue-deep: #216780;
  --metal: #82939b;
  --line: rgba(11, 32, 52, 0.18);
  --soft: #eaf4f7;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; overflow-x: clip; background: var(--paper); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { color: var(--blue-deep); }
a:focus-visible { outline: 3px solid var(--blue-deep); outline-offset: 4px; }
img { max-width: 100%; }
h1, h2 { margin: 0; text-wrap: balance; letter-spacing: -.04em; }
p, li { text-wrap: pretty; }

.skip-link { position: fixed; left: 1rem; top: -6rem; z-index: 20; padding: .7rem 1rem; background: var(--ink); color: #fff; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 76px; padding: 1.1rem clamp(1.2rem, 4vw, 5rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; border-bottom: 1px solid var(--line); }
.wordmark { display: flex; align-items: baseline; gap: .45rem; font-weight: 800; letter-spacing: .08em; text-decoration: none; white-space: nowrap; }
.wordmark small { color: var(--blue-deep); font-size: .72em; font-weight: 500; }
.site-header nav { display: flex; gap: clamp(.7rem, 1.8vw, 1.8rem); align-items: center; overflow-x: auto; font-size: .78rem; white-space: nowrap; scrollbar-width: none; }
.site-header nav::-webkit-scrollbar { display: none; }

.breadcrumb { display: flex; gap: .55rem; align-items: center; padding: 1.1rem clamp(1.2rem, 4vw, 5rem) 0; color: #536774; font-size: .72rem; }
.page-hero { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: clamp(2.5rem, 6vw, 8rem); align-items: center; min-height: 620px; padding: clamp(3rem, 7vw, 7rem) clamp(1.2rem, 4vw, 5rem); }
.page-hero.home { min-height: 680px; }
.hero-copy { min-width: 0; }
.eyebrow { margin: 0 0 1.4rem; color: var(--blue-deep); font-size: .72rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
h1 { max-width: 13ch; font-size: clamp(3rem, 6.4vw, 6.9rem); line-height: .94; }
.home h1 { max-width: 11ch; }
.entity-line { max-width: 40rem; margin: 2rem 0 0; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .82rem; font-weight: 700; letter-spacing: .035em; }
.page-media { position: relative; min-width: 0; margin: 0; }
.page-media img { display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 52% 48% 50% 50% / 48% 52% 48% 52%; }
.home .page-media img { aspect-ratio: 1; }
.lens-edge { position: absolute; inset: -3% -2% -3% -4%; border: 1px solid var(--blue-deep); border-radius: 48% 52% 47% 53% / 52% 46% 54% 48%; pointer-events: none; transform: rotate(-2deg); }
figcaption { margin-top: .75rem; color: #566a77; font-size: .7rem; line-height: 1.5; }

.fact-strip { display: grid; grid-template-columns: 1.35fr 1fr 1fr; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.fact-strip p { margin: 0; padding: 1.35rem clamp(1.2rem, 4vw, 5rem); font-size: .78rem; line-height: 1.5; }
.fact-strip p + p { border-left: 1px solid var(--line); }
.fact-strip span { display: block; margin-bottom: .35rem; color: var(--blue-deep); font-size: .64rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }

.article-copy { max-width: 82rem; margin: 0 auto; padding: clamp(4.5rem, 8vw, 8rem) clamp(1.2rem, 8vw, 9rem); font-size: clamp(1rem, 1.2vw, 1.12rem); line-height: 1.78; }
.article-copy > p { max-width: 68ch; margin: 0 0 1.45rem; }
.copy-section { display: grid; grid-template-columns: minmax(14rem, .62fr) minmax(0, 1.38fr); gap: clamp(2rem, 7vw, 8rem); padding: 3.8rem 0; border-top: 1px solid var(--line); }
.copy-section h2 { max-width: 13ch; font-size: clamp(2rem, 4vw, 4.2rem); line-height: 1; }
.copy-section p, .copy-section ol, .copy-section ul { grid-column: 2; max-width: 62ch; margin: 0 0 1.2rem; }
.evidence-list { padding-left: 1.35rem; }
.evidence-list li { margin-bottom: 1rem; padding-left: .4rem; }
.evidence-list strong { color: var(--blue-deep); }

.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; padding: 1.5rem 3rem 1.5rem 0; font-size: clamp(1.15rem, 2vw, 1.55rem); font-weight: 700; line-height: 1.35; }
.faq-list details p { max-width: 66ch; margin: 0; padding: 0 0 1.8rem; }

.source-files { display: grid; grid-template-columns: minmax(8rem, .35fr) minmax(0, 1.65fr); gap: clamp(2rem, 7vw, 8rem); padding: clamp(4rem, 8vw, 8rem) clamp(1.2rem, 8vw, 9rem); background: var(--ink); color: #fff; }
.source-files .section-number { color: var(--blue); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
.source-files h2 { max-width: 14ch; font-size: clamp(2.4rem, 5vw, 5.4rem); line-height: .96; }
.source-files ul { margin: 3rem 0 0; padding: 0; list-style: none; }
.source-files li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; padding: 1.5rem 0; border-top: 1px solid rgba(255,255,255,.25); }
.source-files li p { max-width: 58ch; margin: .45rem 0 0; color: #c8d6dc; font-size: .86rem; line-height: 1.6; }
.source-files li > a { align-self: start; color: var(--blue); font-size: .78rem; font-weight: 700; }
.doc-id { display: block; margin-bottom: .35rem; color: var(--blue); font-size: .66rem; letter-spacing: .1em; }

.related { display: grid; grid-template-columns: minmax(12rem, .7fr) minmax(0, 1.3fr); gap: 0 clamp(2rem, 7vw, 8rem); padding: clamp(4rem, 8vw, 8rem) clamp(1.2rem, 8vw, 9rem); border-top: 1px solid var(--ink); }
.related > p { margin: 0; color: var(--blue-deep); font-size: .72rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.related > a { grid-column: 2; display: flex; justify-content: space-between; gap: 1rem; padding: 1.25rem 0; border-top: 1px solid var(--line); font-size: clamp(1.15rem, 2vw, 1.65rem); font-weight: 700; text-decoration: none; }

footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2rem clamp(1.2rem, 4vw, 5rem); border-top: 1px solid var(--line); font-size: .72rem; }

@media (max-width: 860px) {
  .site-header { display: block; min-height: 0; padding: .9rem 1.2rem 0; }
  .site-header nav { margin: .8rem -1.2rem 0; padding: .8rem 1.2rem; border-top: 1px solid var(--line); }
  .page-hero, .page-hero.home { grid-template-columns: 1fr; min-height: 0; padding-top: 3.5rem; }
  .page-media { margin-top: 1rem; }
  .lens-edge { inset: -2% 0; }
  h1 { font-size: clamp(2.75rem, 14vw, 5rem); }
  .fact-strip { grid-template-columns: 1fr; }
  .fact-strip p + p { border-left: 0; border-top: 1px solid var(--line); }
  .copy-section { grid-template-columns: 1fr; padding: 2.8rem 0; }
  .copy-section p, .copy-section ol, .copy-section ul { grid-column: 1; }
  .source-files, .related { grid-template-columns: 1fr; }
  .source-files h2 { margin-top: 1.2rem; }
  .source-files li { grid-template-columns: 1fr; gap: .8rem; }
  .related > a { grid-column: 1; }
  .related > p { margin-bottom: 2rem; }
  footer { display: block; }
}

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