:root {
  color-scheme: dark;
  --brand-blue: #0b408b;
  --brand-cyan: #25aadd;
  --brand-red: #e31d22;
  --paper: #17191d;
  --ink: #eef0f3;
  --muted: #afb4bd;
  --line: #3b414a;
  --accent: #83b5ed;
  --signal: var(--brand-cyan);
  --cloud: #272b32;
  --surface: #1e2127;
  --control-border: #747d89;
  --code-surface: #111317;
  --code-ink: #e6e9ed;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace;
  --heading: 'Barlow Condensed', Impact, sans-serif;
  --radius: 0px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { overflow-wrap: anywhere; margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--paper); color: var(--ink); font: 1rem/1.65 -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
a,button,input,textarea,select,summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
::selection { background: var(--accent); color: var(--paper); }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
img { max-width: 100%; }
.skip { position: absolute; left: 20px; top: -100px; background: var(--paper); padding: 12px 20px; z-index: 20; }
.skip:focus { top: 12px; }
.wrap,.header-inner { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 48px; }
.wrap { flex: 1; display: flex; flex-direction: column; }
.site-header { color: var(--muted); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 92px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px; padding-top: 20px; padding-bottom: 20px; }
.brand-stacked { position: relative; display: block; width: 224px; height: 48px; flex-shrink: 0; }
.brand-logo { display: block; width: 224px; height: 48px; }
.brand-team { position: absolute; left: 54px; top: 36px; font: 700 .625rem/12px var(--mono); letter-spacing: 3.2px; color: var(--ink); }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; font: .8125rem/1.6 var(--mono); }
.site-nav a { min-height: 44px; display: inline-flex; align-items: center; }
.site-nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 8px; }
.site-nav .write-nav { color: var(--muted); }
.site-nav .write-nav:hover { color: var(--accent); }
.site-footer { border-top: 1px solid var(--line); margin-top: auto; padding: 24px 0 28px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; color: var(--muted); font: .75rem/1.6 var(--mono); }
.site-footer a { font-size: .875rem; }
.eyebrow,.section-label { font: 500 .75rem/1.7 var(--mono); text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }

/* A compact research index: one lead story followed by paired entries. */
.research-home { padding: 26px 0 48px; }
.research-intro { max-width: 680px; margin: 0 0 24px; color: var(--muted); font-size: 1rem; line-height: 1.7; }
.research-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 40px; row-gap: 28px; }
.research-item { min-width: 0; padding-top: 24px; border-top: 1px solid var(--line); }
.research-item:first-child { grid-column: 1/-1; border-top: 0; padding-top: 8px; }
.research-link { display: grid; grid-template-columns: 112px minmax(0,1fr); align-items: start; gap: 24px; height: 100%; }
.research-link:hover { color: var(--ink); }
.research-copy { grid-column: 2; grid-row: 1; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; height: 100%; }
.research-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px; font: .75rem/1.6 var(--mono); color: var(--muted); }
.research-meta .category { text-transform: uppercase; letter-spacing: .3px; }
.template-label { padding-left: 10px; border-left: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.research-copy h2 { font: 700 2rem/1.1 var(--heading); text-transform: uppercase; letter-spacing: -.3px; margin: 12px 0 10px; }
.research-summary { font-size: 1rem; line-height: 1.6; color: var(--muted); margin: 0 0 16px; }
.research-byline { display: flex; flex-wrap: wrap; gap: 4px 14px; color: var(--muted); font: .75rem/1.6 var(--mono); margin: 0 0 12px; }
.research-meta>*,.research-byline>*,.byline>* { max-width: 100%; }
.read-research { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; min-height: 44px; width: fit-content; color: var(--ink); font: 500 .8125rem/1.5 var(--mono); border-bottom: 1px solid var(--line); }
.read-research span { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif; font-size: 1.5rem; color: var(--accent); }
.research-link .read-research { margin-top: auto; }
.research-link:hover .read-research,.read-research:hover { color: var(--accent); border-color: var(--accent); }
.research-link>.cover-stage { grid-column: 1; grid-row: 1; }
.research-item:first-child .research-link { grid-template-columns: 220px minmax(0,1fr); align-items: center; gap: 48px; }
.research-item:first-child .research-copy { height: auto; max-width: 650px; }
.research-item:first-child h2 { font-size: clamp(2.75rem,4.2vw,3.75rem); line-height: 1.04; max-width: 22ch; margin: 18px 0 16px; }
.research-item:first-child .research-summary { font-size: 1.0625rem; max-width: 48ch; margin-bottom: 18px; }
.research-item:first-child .read-research { margin-top: 2px; }
.empty-state { grid-column: 1/-1; padding: 48px 0; color: var(--muted); }

/* Minimal ink-only portrait covers. */
.cover-stage { position: relative; isolation: isolate; min-width: 0; }
.product-cover { position: relative; aspect-ratio: 2/3; width: 100%; overflow: hidden; isolation: isolate; display: flex; flex-direction: column; background: #000; color: white; border: 1px solid #454545; transition: transform .16s ease; }
.product-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.product-art[src$="/covers/fx-dossier.webp"] { filter: grayscale(1) contrast(2); }
.product-cover-bottom { margin-top: auto; padding: 16px 14px; }
.product-title { font: 700 1.5rem/1.1 var(--heading); text-transform: uppercase; }
.research-item:not(:first-child) .product-cover-bottom { padding: 10px 8px; }
.research-item:not(:first-child) .product-title { font-size: 1rem; }
.research-link:hover .product-cover { transform: translateY(-2px); }
.research-link:focus-visible .product-cover { outline: 1px solid var(--accent); outline-offset: 3px; }

/* Long-form reading. */
.back { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: .875rem; }
.published-article { padding: 24px 0 64px; }
.article-masthead { display: grid; grid-template-columns: minmax(0,1fr) 170px; align-items: center; gap: 48px; padding: 24px 0 36px; border-bottom: 1px solid var(--line); }
.article-masthead h1 { font: 700 clamp(2.5rem,4.5vw,4rem)/1.05 var(--heading); text-transform: uppercase; letter-spacing: -.6px; margin: 18px 0; }
.article-summary { font-size: 1.125rem; color: var(--muted); max-width: 54ch; line-height: 1.75; margin: 0 0 20px; }
.byline { display: flex; flex-wrap: wrap; gap: 8px 20px; font: .8125rem/1.6 var(--mono); color: var(--muted); }
.article-layout { display: grid; grid-template-columns: 180px minmax(0,730px); gap: 48px; padding-top: 36px; }
.article-toc { position: sticky; top: 28px; align-self: start; min-width: 0; }
.article-toc .section-label { margin: 0 0 14px; text-transform: lowercase; }
.article-toc nav { display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--line); }
.article-toc a { display: block; font-size: .875rem; padding: 9px 16px; color: var(--muted); border-left: 2px solid transparent; margin-left: -1px; }
.article-toc a:hover { color: var(--accent); border-color: var(--accent); background: var(--cloud); }
.article-toc .toc-child { padding-left: 28px; font-size: .8125rem; }
.article-layout--plain { display: block; max-width: 760px; margin: auto; }
.article-body { min-width: 0; font-size: 1.125rem; line-height: 1.85; color: #d6dae0; overflow-wrap: anywhere; }
.article-body h1,.article-body h2,.article-body h3,.article-body h4 { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif; color: var(--ink); font-weight: 650; line-height: 1.3; letter-spacing: -.5px; scroll-margin-top: 32px; }
.article-body h1 { font-size: 2.125rem; }
.article-body h2 { font-size: 1.6875rem; margin: 48px 0 18px; border-top: 1px solid var(--line); padding-top: 20px; }
.article-body h2:first-child { padding-top: 0; border-top: 0; }
.article-body h3 { font-size: 1.3125rem; margin: 32px 0 14px; }
.article-body h4 { font-size: 1.125rem; }
.article-body>:first-child { margin-top: 0; }
.article-body p { margin: 0 0 24px; }
.article-body ul,.article-body ol { padding-left: 25px; margin: 0 0 24px; }
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-body pre { background: var(--code-surface); color: var(--code-ink); padding: 22px 24px; overflow: auto; max-width: 100%; border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--radius); font: .875rem/1.85 var(--mono); margin: 28px 0; }
.article-body code:not(pre code) { color: var(--ink); padding: 2px 5px; background: var(--cloud); border: 1px solid var(--line); border-radius: 3px; font: .85em/1.5 var(--mono); }
.table-scroll { overflow-x: auto; max-width: 100%; margin: 24px 0 32px; }
.article-body table { width: 100%; border-collapse: collapse; font-size: .9375rem; line-height: 1.6; margin: 0; }
.article-body th,.article-body td { text-align: left; vertical-align: top; padding: 13px 18px; border-bottom: 1px solid var(--line); min-width: 130px; }
.article-body th { background: var(--cloud); color: var(--ink); font-weight: 600; }
.article-body blockquote { margin: 28px 0; padding: 4px 24px; border-left: 3px solid var(--accent); color: var(--muted); }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius); }
.article-body hr { border: 0; border-top: 1px solid var(--line); margin: 36px 0; }
.article-end { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); }
.about-page { max-width: 820px; padding: 48px 0 64px; }
.about-page h1 { font: 700 clamp(2.5rem,5vw,4rem)/1.05 var(--heading); text-transform: uppercase; letter-spacing: -.6px; margin: 0 0 24px; }
.about-page .lede { font-size: 1.25rem; line-height: 1.7; color: var(--muted); margin: 0 0 32px; }
.about-page .read-research { margin-top: 16px; }

@media(max-width:1000px) {
  .wrap,.header-inner { padding-left: 32px; padding-right: 32px; }
  .research-grid { column-gap: 28px; }
  .research-link { grid-template-columns: 96px minmax(0,1fr); gap: 18px; }
  .research-copy h2 { font-size: 1.875rem; }
  .article-layout { grid-template-columns: 160px minmax(0,1fr); gap: 32px; }
}
@media(max-width:850px) {
  .research-grid { grid-template-columns: minmax(0,1fr); }
  .research-link { grid-template-columns: 120px minmax(0,1fr); gap: 28px; }
  .research-item:first-child .research-link { grid-template-columns: 190px minmax(0,1fr); gap: 32px; }
  .research-item:first-child h2 { font-size: 3rem; }
  .research-copy h2 { font-size: 2rem; }
  .research-summary { max-width: 52ch; }
}
@media(max-width:650px) {
  .wrap,.header-inner { padding-left: 22px; padding-right: 22px; }
  .header-inner { padding-top: 20px; padding-bottom: 10px; gap: 14px; }
  .site-nav { width: 100%; gap: 26px; }
  .site-nav .write-nav { margin-left: auto; }
  .research-home { padding-top: 22px; padding-bottom: 36px; }
  .research-grid { row-gap: 24px; }
  .research-item,.research-item:first-child { padding-top: 24px; }
  .research-link,.research-item:first-child .research-link { grid-template-columns: 110px minmax(0,1fr); gap: 14px 20px; align-items: start; }
  .research-copy,.research-item:first-child .research-copy { display: contents; }
  .research-meta { grid-column: 1/-1; grid-row: 1; }
  .research-copy h2,.research-item:first-child h2 { grid-column: 2; grid-row: 2; font-size: 2rem; line-height: 1.08; max-width: none; margin: 0; align-self: center; }
  .research-link>.cover-stage { grid-column: 1; grid-row: 2; }
  .research-summary,.research-item:first-child .research-summary { grid-column: 1/-1; grid-row: 3; margin: 0; max-width: none; font-size: 1rem; line-height: 1.65; }
  .research-byline { grid-column: 1/-1; grid-row: 4; margin: 0; }
  .research-link .read-research,.research-item:first-child .read-research { grid-column: 1/-1; grid-row: 5; margin: 0; }
  .product-title,.research-item:not(:first-child) .product-title { font-size: .9375rem; }
  .product-cover-bottom,.research-item:not(:first-child) .product-cover-bottom { padding: 10px 8px; }
  .published-article { padding: 16px 0 44px; }
  .article-masthead { grid-template-columns: minmax(0,1fr) 90px; gap: 20px; padding: 20px 0 28px; align-items: start; }
  .article-heading { display: contents; }
  .article-heading .research-meta { grid-row: 1; }
  .article-masthead h1 { grid-column: 1; grid-row: 2; font-size: 2.25rem; margin: 0; }
  .article-masthead>.product-cover { grid-column: 2; grid-row: 2; }
  .article-summary { grid-column: 1/-1; font-size: 1.0625rem; margin: 0; }
  .byline { grid-column: 1/-1; }
  .article-masthead .product-title { font-size: .875rem; }
  .article-masthead .product-cover-bottom { padding: 8px; }
  .article-layout { grid-template-columns: minmax(0,1fr); padding-top: 26px; gap: 24px; }
  .article-toc { position: static; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
  .article-toc nav { flex-direction: row; flex-wrap: wrap; border: 0; gap: 6px 20px; }
  .article-toc a,.article-toc .toc-child { padding: 4px 0; margin: 0; border: 0; min-height: 32px; }
  .article-toc .section-label { margin-bottom: 10px; }
  .article-body { font-size: 1.0625rem; line-height: 1.8; }
  .article-body h2 { font-size: 1.5rem; margin-top: 36px; }
  .article-body pre { padding: 18px; font-size: .8125rem; }
  .article-body th,.article-body td { padding: 12px; }
  .about-page { padding: 36px 0 48px; }
  .about-page .lede { font-size: 1.125rem; }
}
@media(max-width:360px) {
  .wrap,.header-inner { padding-left: 18px; padding-right: 18px; }
  .site-nav { gap: 18px; font-size: .75rem; }
  .research-link,.research-item:first-child .research-link { grid-template-columns: 96px minmax(0,1fr); gap: 14px 16px; }
  .research-copy h2,.research-item:first-child h2 { font-size: 1.8125rem; }
  .product-title,.research-item:not(:first-child) .product-title { font-size: .8125rem; }
  .product-cover-bottom,.research-item:not(:first-child) .product-cover-bottom { padding: 8px 6px; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { transition: none !important; animation: none !important; }
  .research-link:hover .product-cover { transform: none; }
}

.article-author { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 24px; }
.article-author p { margin: 8px 0; }
.article-author .section-label { font-size: .75rem; }
.article-citation { margin-top: 24px; font-size: .9375rem; overflow-wrap: anywhere; }
.article-citation summary { cursor: pointer; }
.article-citation p { margin-top: 12px; }
.related-research { margin-top: 36px; border-top: 1px solid var(--line); }
.related-research li { margin-bottom: 20px; }
.related-research li p { font-size: .9375rem; margin-top: 6px; }