/* Shared reading and discovery layer. Existing editorial components stay intact. */
:root { --reader-measure: 72ch; }
/* Long guides should jump directly to the requested evidence or definition. */
html { scroll-behavior: auto; }
body { background: var(--surface); }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.site-header { background: var(--surface); backdrop-filter: none; }
.nav { min-height: 80px; }
.brand { letter-spacing: -.025em; font-size: 1.1rem; }
.brand-mark { background: var(--teal-dark); box-shadow: none; border: 0; border-radius: 3px; font-family: Georgia, serif; font-size: 1.35rem; }
.nav-links { gap: .55rem; }
.nav-links a { font-size: .9rem; font-weight: 550; padding: .65rem .55rem; }
.nav-links a[aria-current="page"] { text-decoration: underline; text-underline-offset: .6em; }
.nav-links a:last-child { border: 1px solid var(--line); border-radius: 4px; padding-inline: 1rem; }
.kicker { color: var(--teal-dark); font-size: .73rem; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.reader-home h1,.reader-home h2,.reader-home h3,.reader-page h1,.reader-page h2,.reader-page h3 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; letter-spacing: -.025em; }
.reader-home .section,.reader-page.section { width: min(var(--max), calc(100% - 64px)); }
.reader-intro { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 6%; padding-block: 76px 72px; }
.reader-intro h1 { font-size: clamp(2.7rem, 4.3vw, 4.4rem); line-height: 1.08; margin: 20px 0 24px; }
.reader-intro h1 em { color: var(--teal-dark); font-weight: inherit; }
.intro-lede { max-width: 52ch; color: var(--ink-soft); font-size: 1.1rem; line-height: 1.75; }
.reader-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; margin-block: 28px 22px; }
.button.primary { background: var(--teal-dark); color: white; border: 1px solid var(--teal-dark); border-radius: 4px; box-shadow: none; }
.button.primary:hover { background: var(--ink); }
.button.secondary { background: var(--surface); color: var(--teal-dark); border: 1px solid var(--line-strong); }
.intro-note { font-size: .8rem; color: var(--ink-soft); }
.first-lesson { padding: 32px; background: var(--paper); border-top: 3px solid var(--teal-dark); }
.first-lesson h2 { font-size: clamp(1.8rem, 2.5vw, 2.35rem); line-height: 1.15; margin: 20px 0; }
.first-lesson p { color: var(--ink-soft); font-size: .95rem; line-height: 1.7; }
.first-lesson a { font-size: .87rem; }
.lesson-contrast { border-block: 1px solid var(--line); margin-block: 24px; padding-block: 8px; }
.lesson-contrast div { padding-block: 12px; }
.lesson-contrast span,.lesson-contrast strong { display: block; }
.lesson-contrast span { font-size: .7rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.lesson-contrast strong { font-weight: 600; font-size: .95rem; }
.reader-section { padding-block: 52px 60px; border-top: 1px solid var(--line); }
.reader-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 28px; }
.reader-section-heading h2 { font-size: 2rem; line-height: 1.18; margin: 10px 0 0; }
.reader-section-heading > a { flex-shrink: 0; font-size: .88rem; }
.reader-grid { display: grid; gap: 22px; }
.reader-grid.three { grid-template-columns: repeat(3,minmax(0,1fr)); }
.reader-grid.two { grid-template-columns: repeat(2,minmax(0,1fr)); }
.reader-card { display: flex; flex-direction: column; padding: 28px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); text-decoration: none; background: var(--surface); transition: border-color .15s,background .15s; min-width: 0; }
.reader-card:hover { color: var(--ink); border-color: var(--teal); background: #f3f7f3; }
.reader-card-number { color: var(--teal-dark); font-size: .75rem; font-weight: 650; letter-spacing: .05em; text-transform: uppercase; }
.reader-card h3 { font-size: 1.6rem; line-height: 1.25; margin: 24px 0 12px; }
.reader-card p { font-size: .93rem; line-height: 1.7; color: var(--ink-soft); margin: 0 0 24px; }
.reader-card-link { margin-top: auto; font-size: .83rem; font-weight: 650; color: var(--teal-dark); }
.compact-card h3 { margin-top: 10px; }
.compact-card p { margin-bottom: 0; }
.example-band { background: var(--paper); }
.reader-example { display: grid; grid-template-columns: 1fr 1.15fr; gap: 10%; padding-block: 58px; }
.reader-example h2 { font-size: 2.7rem; line-height: 1.12; margin: 18px 0 22px; }
.reader-example p { color: var(--ink-soft); line-height: 1.75; }
.example-list a { display: block; padding: 20px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.example-list a:first-child { padding-top: 0; }
.example-list a:last-child { border: 0; }
.example-list a:hover h3 { color: var(--teal-dark); text-decoration: underline; }
.example-list span { color: var(--teal-dark); text-transform: uppercase; font-size: .7rem; letter-spacing: .08em; }
.example-list h3 { font-size: 1.6rem; margin: 8px 0; line-height: 1.2; }
.example-list p { margin: 0; font-size: .9rem; }
.reader-search-band { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding-block: 40px 64px; }
.reader-search-band h2 { font-size: 1.65rem; margin: 0; }
.reader-search-band p { font-size: .9rem; color: var(--ink-soft); }
.reader-search-row { display: flex; align-items: stretch; gap: 10px; }
.reader-search-row input { width: 100%; min-width: 0; border: 1px solid var(--line-strong); border-radius: 4px; padding: 14px 16px; background: white; }
.reader-search-row .button { flex-shrink: 0; cursor: pointer; }
.reader-page { padding-block: 52px 72px; }
.reader-page-heading { max-width: 780px; margin-bottom: 36px; }
.reader-page-heading h1 { font-size: clamp(2.3rem,4vw,3.6rem); line-height: 1.1; margin: 14px 0 20px; }
.reader-page-heading .lede { font-size: 1.1rem; line-height: 1.75; color: var(--ink-soft); }
.path-jump { display: flex; flex-wrap: wrap; gap: 10px 24px; padding-block: 0 28px; border-bottom: 1px solid var(--line); font-size: .9rem; }
.path-jump a { padding-block: 8px; }
.learning-path { display: grid; grid-template-columns: 1fr 1.4fr; gap: 8%; padding-block: 44px; border-bottom: 1px solid var(--line); }
.path-description h2 { font-size: 2rem; line-height: 1.2; margin: 12px 0 20px; }
.path-description p { font-size: .95rem; color: var(--ink-soft); }
.path-description strong { font-weight: 600; }
.reading-sequence { list-style: none; margin: 0; padding: 0; }
.reading-sequence li { display: grid; grid-template-columns: 36px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.reading-sequence li:last-child { border: 0; }
.step-index { color: var(--teal); font-size: .85rem; padding-top: 5px; }
.reading-sequence h3 { font-size: 1.4rem; margin: 0 0 8px; line-height: 1.25; }
.reading-sequence p { font-size: .9rem; color: var(--ink-soft); margin: 0; }
.reader-endnote { margin-top: 40px; padding: 28px; border-left: 3px solid var(--teal); background: var(--paper); }
.reader-endnote h2 { font-size: 1.6rem; margin: 0 0 12px; }
.reader-endnote p { margin: 0; color: var(--ink-soft); }
.search-page { max-width: 920px; }
.search-page .search-panel { padding: 0 0 24px; border: 0; background: transparent; box-shadow: none; }
.search-page .search-filters { margin-block: 20px 12px; }
.search-refine { border-block: 1px solid var(--line); margin-block: 20px 0; }
summary { cursor: pointer; }
.search-refine summary { padding-block: 14px; font-size: .9rem; color: var(--teal-dark); }
.search-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding-top: 18px; }
.search-toolbar .search-meta { margin: 0; }
.text-button { border: 0; background: none; padding: 8px 0; color: var(--teal-dark); text-decoration: underline; cursor: pointer; font-size: .87rem; }
.search-page .search-results { display: block; }
.search-page .search-result { padding: 22px 0; border: 0; border-bottom: 1px solid var(--line); box-shadow: none; background: transparent; border-radius: 0; }
.search-result h3 { font-size: 1.5rem; line-height: 1.3; margin-block: 10px; }
.search-result .result-meta { font-size: .8rem; }
.search-result p { margin-bottom: 0; font-size: .95rem; line-height: 1.7; }
.search-more { margin-top: 24px; }
.search-more[hidden] { display: none; }
.library-subject { margin-block: 38px; }
.library-subject h2 { font-size: 1.8rem; }
.library-subject .reader-card { padding: 22px; }
.library-subject .reader-card h3 { font-size: 1.4rem; margin-top: 12px; }
.guide-directory { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 24px; }
.guide-directory details { border-bottom: 1px solid var(--line); padding-block: 16px; }
.guide-directory summary { font-weight: 600; color: var(--teal-dark); }
.directory-list { columns: 2; column-gap: 48px; padding-left: 20px; }
.directory-list li { break-inside: avoid; margin-bottom: 14px; font-size: .9rem; }
.example-disclosure { max-width: 76ch; color: var(--ink-soft); border-left: 3px solid var(--teal); padding-left: 18px; margin-block: 28px; }
.example-index .reader-card h2 { font-size: 1.6rem; line-height: 1.25; margin-block: 14px; }
.example-index .reader-card { padding: 28px; }
.site-footer { background: var(--paper); border-top: 1px solid var(--line); margin-top: 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding-block: 48px; }
.footer-about p { color: var(--ink-soft); font-size: .92rem; max-width: 30ch; }
.footer-links { display: flex; flex-direction: column; gap: 10px; align-items: start; font-size: .85rem; }
.footer-links strong { color: var(--ink); font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
/* Long-form pages retain their text, tables, sources and figures. */
.article h1 { font-size: clamp(2.1rem,3.7vw,3.25rem); line-height: 1.13; letter-spacing: -.025em; }
.article h2 { line-height: 1.25; margin-block: 2.4rem 1rem; }
.article > p,.article > ul,.article > ol { line-height: 1.8; }
.article p,.article li { overflow-wrap: break-word; }
.article .article-attribution { color: var(--ink-soft); font-size: .85rem; line-height: 1.65; border-color: var(--line); margin-block: 18px 28px; }
.reader-layout { grid-template-columns: minmax(0,780px) minmax(210px,280px); justify-content: space-between; gap: 48px; }
.article-contents { background: var(--paper); border-top: 2px solid var(--teal); padding: 18px 22px; margin-block: 28px; }
.article-contents summary { font-size: .9rem; font-weight: 650; color: var(--ink); }
.article-contents nav { display: grid; gap: 10px; margin-top: 16px; }
.article-contents a { font-size: .85rem; line-height: 1.45; }
.rail > .article-contents { margin-top: 0; }
.reading-time { font-size: .78rem !important; color: var(--ink-soft); margin-top: 16px; }
.table-wrap { max-width: 100%; overscroll-behavior-inline: contain; }
.table-wrap:focus-visible { outline-offset: 2px; }
.reader-related { border-block: 1px solid var(--line); padding-block: 18px; margin-top: 30px; }
.reader-related summary { font-weight: 600; color: var(--teal-dark); font-size: .9rem; }
.reader-related > :not(summary) { margin-top: 20px; }
@media (min-width: 1050px) {
  .reader-layout > .rail { position: sticky; top: 104px; max-height: calc(100vh - 128px); overflow-y: auto; scrollbar-width: thin; }
}
@media (max-width: 1040px) {
  .nav:has(.nav-toggle:not([data-nav-ready])) { flex-wrap: wrap; padding-block: 16px; }
  .nav-toggle:not([data-nav-ready]) { display: none; }
  .nav:has(.nav-toggle:not([data-nav-ready])) .nav-links { display: flex; position: static; width: 100%; }
  .nav-links { inset-block-start: 80px; }
  .reader-intro { gap: 32px; }
  .reader-layout { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .reader-layout > .article { max-width: 780px; margin-inline: auto; width: 100%; }
  .reader-layout > .rail { position: static; max-width: 780px; width: 100%; margin-inline: auto; }
}
@media (max-width: 760px) {
  .reader-home .section,.reader-page.section { width: calc(100% - 40px); }
  .reader-intro { grid-template-columns: 1fr; padding-block: 40px; gap: 30px; }
  .reader-intro h1 { font-size: 2.7rem; }
  .first-lesson { padding: 24px; }
  .reader-grid.three,.reader-grid.two,.reader-example,.reader-search-band,.learning-path { grid-template-columns: 1fr; gap: 24px; }
  .reader-section { padding-block: 36px; }
  .reader-section-heading { align-items: start; flex-direction: column; gap: 14px; }
  .reader-section-heading h2 { font-size: 1.85rem; }
  .reader-card { padding: 24px; }
  .reader-card h3 { margin-top: 14px; }
  .reader-example { padding-block: 36px; }
  .reader-example h2 { font-size: 2.3rem; }
  .reader-page { padding-block: 32px 48px; }
  .learning-path { padding-block: 30px; }
  .directory-list { columns: 1; }
  .footer-inner { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px 20px; }
  .footer-about { grid-column: 1/-1; }
  .article h1 { font-size: 2.2rem; }
  .article-contents { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { transition: none !important; animation: none !important; }
}
@media print {
  .article-contents,.reader-related,.nav-toggle { display: none; }
  .reader-layout { display: block; }
}

/* Signal / contemporary editorial system. No third-party font or UI requests. */
:root {
  --ink: #122b29; --ink-soft: #506260; --paper: #f1f5f1; --surface: #fcfdfa;
  --line: #dce4de; --line-strong: #a7bab2; --teal: #247363; --teal-dark: #17594b;
  --mint: #c5f6b9; --night: #102c29; --radius: 16px; --max: 1240px;
  --font-display: "Segoe UI Variable Display", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
}
body { -webkit-font-smoothing: antialiased; }
h1,h2,h3 { text-wrap: balance; }
.reader-home h1,.reader-home h2,.reader-home h3,.reader-page h1,.reader-page h2,.reader-page h3,
.article h1,.article h2,.article h3 { font-family: var(--font-display); font-weight: 650; letter-spacing: -.045em; }
.site-header { background: rgba(252,253,250,.95); backdrop-filter: blur(18px); border-color: #dae3dc; }
.nav { width: min(var(--max),calc(100% - 64px)); }
.brand { font-family: var(--font-display); font-weight: 750; font-size: 1.08rem; letter-spacing: -.045em; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; background: var(--night); color: var(--mint); font-family: var(--font-display); font-weight: 800; transform: rotate(-5deg); }
.nav-links { gap: 8px; }
.nav-links a { font-size: .81rem; font-weight: 600; border-radius: 8px; padding: 10px 13px; transition: background .18s,color .18s; }
.nav-links a:hover,.nav-links a[aria-current="page"] { background: #e9f0e9; color: var(--ink); text-decoration: none; }
.nav-links a:last-child { color: white; background: var(--night); border-color: var(--night); border-radius: 999px; padding-inline: 22px; }
.nav-links a:last-child:hover { background: var(--teal-dark); }
.nav-toggle { min-height: 44px; border-radius: 12px; }
.kicker { font-size: .67rem; font-weight: 750; letter-spacing: .14em; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; font-size: .9rem; font-weight: 650; }
.button.primary { background: var(--night); border-color: var(--night); border-radius: 999px; padding: 14px 23px; transition: transform .18s,background .18s,box-shadow .18s; }
.button.primary:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 22px #102c2920; }
.text-link { font-weight: 650; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.signal-hero { background: var(--night); color: #f5faf4; position: relative; overflow: hidden; }
.signal-hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .12; background-image: radial-gradient(#c5f6b9 1px,transparent 1px); background-size: 26px 26px; mask-image: linear-gradient(90deg,transparent 25%,black); }
.signal-hero .reader-intro { position: relative; grid-template-columns: 1.1fr 1fr; gap: 8%; padding-block: 56px; }
.signal-hero .kicker { color: var(--mint); }
.status-dot { display: inline-block; width: 7px; height: 7px; background: var(--mint); border-radius: 50%; margin-right: 7px; box-shadow: 0 0 0 4px #c5f6b915; vertical-align: 1px; }
.signal-hero h1 { font-size: clamp(3.8rem,7.1vw,6.5rem); font-weight: 600; line-height: .99; letter-spacing: -.065em; margin-block: 32px; }
.signal-hero h1 em { font-style: normal; color: var(--mint); }
.signal-hero .intro-lede { font-size: 1.03rem; color: #bdceca; line-height: 1.85; max-width: 43ch; }
.signal-hero .reader-actions { gap: 25px; margin-block: 32px 28px; }
.signal-hero .button.primary { color: var(--night); background: var(--mint); border-color: var(--mint); }
.signal-hero .button.primary:hover { background: #d9ffd0; }
.signal-hero .text-link { color: #e8f1e8; font-size: .85rem; }
.signal-hero .intro-note { color: #a5bdb6; font-size: .72rem; }
.signal-lab { position: relative; padding: 28px 30px; background: #1b3935; border: 1px solid #49605a; border-radius: 22px; box-shadow: 0 24px 70px #031c252b; }
.lab-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.lab-tag { border: 1px solid #547168; padding: 5px 10px; border-radius: 999px; font: .62rem ui-monospace,monospace; color: #d2e1dc; white-space: nowrap; }
.signal-lab h2 { color: #f5faf4; font-size: 1.75rem; line-height: 1.14; letter-spacing: -.04em; margin-block: 24px 12px; }
.signal-lab p { color: #bdceca; font-size: .8rem; line-height: 1.7; margin-bottom: 16px; max-width: 40ch; }
.signal-chart { margin-block: 16px 20px; }
.signal-chart svg { display: block; width: 100%; height: 180px; overflow: visible; }
.chart-grid path { stroke: #39554e; stroke-width: 1; fill: none; }
.chart-labels { fill: #a9c2b7; font: 11px ui-monospace,monospace; }
.chart-observed { fill: none; stroke: var(--mint); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.chart-baseline { fill: none; stroke: #b3c1ed; stroke-width: 2; stroke-dasharray: 5 5; }
.chart-area { fill: #b5ef9d18; }
.chart-point { fill: var(--mint); }
.chart-base-point { fill: #b3c1ed; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 18px; font-size: .64rem; color: #c3d2cd; margin: 12px 0 0 36px; }
.chart-legend span { display: inline-flex; align-items: center; gap: 7px; }
.chart-legend i { display: inline-block; width: 13px; border-top: 2px solid var(--mint); }
.chart-legend .legend-baseline { border-color: #b3c1ed; border-top-style: dashed; }
.baseline-control { display: grid; grid-template-columns: 1fr 100px; column-gap: 18px; padding: 14px 16px; background: #102c2980; border: 1px solid #3e5c51; border-radius: 13px; }
.baseline-control > div:first-child { display: flex; justify-content: space-between; gap: 12px; font-size: .73rem; color: #e2ece7; }
.baseline-control input { grid-column: 1; width: 100%; margin: 10px 0 0; accent-color: var(--mint); cursor: ew-resize; height: 22px; }
.baseline-control input:focus-visible { outline-color: var(--mint); }
.lab-result { grid-column: 2; grid-row: 1 / 3; display: flex; flex-direction: column; align-items: center; justify-content: center; border-left: 1px solid #36554b; padding-left: 14px; }
.lab-result > span { font-size: .71rem; color: #bfd2c7; }
.lab-result strong { font: 500 1.8rem var(--font-display); color: var(--mint); letter-spacing: -.04em; }
.lab-result small { font: .7rem var(--font-display); letter-spacing: 0; }
.signal-lab .lab-caution { font-size: .72rem; color: #b6cdc1; max-width: none; margin-block: 13px; }
.signal-lab a { font-size: .72rem !important; display: inline-block; }
.hero-bottom { position: relative; padding-block: 23px !important; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #39554e; color: #a6bdb5; font-size: .72rem; }
.hero-bottom a { color: #d3e1d7; text-decoration: none; }
.hero-bottom a span { display: inline-block; margin-left: 14px; }
.reader-section { padding-block: 76px 84px; border-top: 0; }
.reader-section-heading { margin-bottom: 32px; }
.reader-section-heading h2 { font-size: clamp(1.8rem,3vw,2.6rem); letter-spacing: -.05em; max-width: 24ch; }
.reader-section-heading > a { text-decoration: none; font-size: .8rem; font-weight: 650; }
.reader-grid { gap: 20px; }
.reader-card { border-radius: 18px; background: #f0f4ed; border-color: transparent; padding: 30px; position: relative; transition: transform .2s,box-shadow .2s,border-color .2s,background .2s; }
.reader-card h3 { font-size: 1.5rem; letter-spacing: -.035em; max-width: 20ch; }
.reader-card p { font-size: .86rem; line-height: 1.8; }
.reader-card-number { letter-spacing: .08em; font: .68rem ui-monospace,monospace; }
.reader-home .reader-card:not(.compact-card) { min-height: 310px; }
.reader-home .reader-card:nth-child(2) { background: #eaf0f5; }
.reader-home .reader-card:nth-child(3) { background: #f1eef7; }
.reader-card-link { border-top: 1px solid #102c2918; padding-top: 22px; font-size: .75rem; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.reader-card-link > span { font-size: 1.15rem; }
@media (hover:hover) {
  .reader-card:hover { transform: translateY(-5px); border-color: #9db5a4; box-shadow: 0 16px 30px #153e2910; }
  .example-list a:hover { transform: translateX(5px); }
}
.example-band { background: #e4eddf; border-block: 1px solid #d6e1cf; }
.reader-example { gap: 12%; padding-block: 76px; }
.reader-example h2 { font-size: clamp(2rem,3.7vw,3.1rem); line-height: 1.08; }
.reader-example > div > p:not(.kicker) { font-size: .93rem; }
.example-list { counter-reset: example; }
.example-list a { position: relative; padding: 24px 0 24px 44px; border-color: #bfcfba; transition: transform .2s; }
.example-list a:first-child { padding-top: 24px; }
.example-list a::before { counter-increment: example; content: "0" counter(example); position: absolute; left: 0; top: 25px; color: #5b7253; font: .68rem ui-monospace,monospace; }
.example-list h3 { font-size: 1.35rem; line-height: 1.3; }
.example-list span { font-size: .62rem; }
.example-list p { font-size: .8rem; }
.compact-card { min-height: 250px; }
.reader-search-band { background: var(--night); color: #f5faf4; border: 0; border-radius: 22px; padding: 40px !important; margin-bottom: 76px; }
.reader-search-band h2 { font-size: 1.8rem; }
.reader-search-band p { color: #bdceca; margin-bottom: 0; font-size: .83rem; }
.reader-search-row { gap: 8px; }
.reader-search-row input { border-radius: 10px; background: #fff; font-size: .85rem; }
.reader-search-band .button.primary { background: var(--mint); color: var(--night); border-color: var(--mint); border-radius: 10px; }
.reader-page { padding-top: 64px; }
.reader-page-heading { max-width: 900px; margin-bottom: 42px; }
.reader-page-heading h1 { font-size: clamp(2.5rem,5vw,4.3rem); line-height: 1.04; letter-spacing: -.055em; }
.reader-page-heading .lede { max-width: 60ch; color: var(--ink-soft); font-size: 1rem; }
.path-jump { gap: 10px; border: 0; padding-bottom: 0; }
.reader-page > .path-jump { margin-top: 20px; }
.path-jump a { padding: 10px 15px; border: 1px solid var(--line); background: white; text-decoration: none; border-radius: 999px; font-size: .76rem; }
.path-jump a:hover { background: #e7f3df; border-color: var(--teal); }
.learning-path { border: 1px solid var(--line); border-radius: 20px; padding: 32px; margin-top: 24px; gap: 7%; background: white; }
.learning-path:nth-of-type(even) { background: #f0f5ed; }
.path-description h2 { font-size: 2.15rem; margin-top: 20px; }
.path-description p { font-size: .87rem; }
.reading-sequence li { grid-template-columns: 36px 1fr; gap: 16px; }
.step-index { display: grid; place-items: center; width: 32px; height: 32px; padding: 0; background: #e1ebdc; color: var(--ink); border-radius: 50%; font: .7rem ui-monospace,monospace; }
.reading-sequence h3 { font-size: 1.2rem; letter-spacing: -.03em; }
.reading-sequence h3 a { text-decoration: none; }
.reading-sequence h3 a:hover { text-decoration: underline; }
.reading-sequence p { font-size: .83rem; }
.library-subject { margin-block: 48px; }
.library-subject > h2 { padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 1.6rem; }
.library-subject .reader-card { padding: 26px; background: white; border-color: var(--line); }
.library-subject .reader-card h3 { font-size: 1.24rem; }
.guide-directory { background: var(--paper); padding: 28px 32px; border: 1px solid var(--line); border-radius: 18px; }
.guide-directory summary { font-size: .9rem; padding-block: 4px; }
.directory-count { color: var(--ink-soft); font-weight: 400; }
.directory-list li { font-size: .85rem; padding-block: 4px; }
.example-index .reader-card { background: white; border-color: var(--line); }
.example-index .reader-card h2 { font-size: 1.5rem; }
.search-page { max-width: 1000px; }
.search-page .search-panel { background: #edf3e9; padding: 26px; border: 1px solid #d6e1ce; border-radius: 18px; }
.search-form input,.search-input { border-radius: 10px; background: white; }
.filter-button { border-radius: 999px; min-height: 42px; padding-inline: 16px; font-size: .8rem; font-weight: 600; border-color: #c9d7c3; }
.filter-button[aria-pressed="true"] { background: var(--night); border-color: var(--night); }
.search-refine { border-color: #c9d7c3; }
.search-toolbar .search-meta { font-size: .8rem; font-weight: 500; }
.search-page .search-results { margin-top: 24px; }
.search-page .search-result { padding: 26px 4px; transition: background .2s; }
.search-result h3 { font-size: 1.45rem; }
.search-result h3 a { text-decoration: none; }
.search-result h3 a:hover { text-decoration: underline; }
.search-result p { font-size: .88rem; max-width: 75ch; }
.search-result .result-meta { font-size: .7rem; }
.breadcrumbs { font-size: .72rem; margin-bottom: 32px; }
.article h1 { font-size: clamp(2.3rem,4.1vw,3.5rem); line-height: 1.08; }
.article h2 { font-size: 1.9rem; letter-spacing: -.035em; }
.article h3 { letter-spacing: -.02em; }
.article > p,.article > ul,.article > ol { max-width: 72ch; }
.article .lede { font-size: 1.13rem; color: #41544d; line-height: 1.8; }
.article .article-meta { font-size: .76rem; color: var(--ink-soft); }
.article .article-attribution { background: #f1f5ef; border-left: 2px solid #97ba8b; padding: 16px 18px; border-radius: 0 12px 12px 0; font-size: .75rem; }
.article-contents { border: 1px solid #d7e3cf; background: #eff5e9; border-radius: 14px; padding: 22px; }
.article-contents summary { font-size: .8rem; }
.article-contents a { font-size: .75rem; color: #3d5a44; text-decoration: none; border-left: 2px solid transparent; padding-left: 10px; }
.article-contents a:hover,.article-contents a[aria-current="location"] { border-color: var(--teal); color: var(--teal-dark); text-decoration: underline; }
.rail .source-card { border-radius: 14px; background: white; }
.rail .source-card p { font-size: .8rem; }
.article-figure { border-radius: 16px; overflow: hidden; }
.table-wrap { border-radius: 12px; }
th { background: #eaf1e5; color: var(--ink); }
.reading-progress { position: absolute; bottom: -1px; left: 0; width: 100%; height: 3px; background: var(--teal); transform: scaleX(0); transform-origin: left; pointer-events: none; }
.site-footer { background: #ecf1e9; border-top: 1px solid #d8e3d2; }
.footer-inner { width: min(var(--max),calc(100% - 64px)); padding-block: 60px; gap: 40px; }
.footer-about p { font-size: .83rem; }
.footer-links { font-size: .76rem; gap: 13px; }
.footer-links a { text-decoration: none; color: #486043; }
.footer-links a:hover { text-decoration: underline; }
.footer-links strong { font-size: .62rem; letter-spacing: .12em; }
@media (min-width:1050px) { .reader-layout { gap: 64px; } }
@media (max-width:1040px) {
  .nav-links { border: 1px solid var(--line); box-shadow: 0 16px 30px #102c2920; background: var(--surface); }
  .nav:has(.nav-toggle:not([data-nav-ready])) .nav-links { box-shadow: none; border: 0; }
  .signal-hero .reader-intro { grid-template-columns: 1fr 1fr; gap: 32px; padding-block: 52px; }
  .signal-hero h1 { font-size: clamp(3.4rem,7vw,5rem); }
  .signal-lab { padding: 22px; }
  .lab-topline { flex-wrap: wrap; gap: 8px; }
  .reader-card { padding: 24px; }
  .reader-search-band { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width:760px) {
  .nav,.footer-inner { width: calc(100% - 40px); }
  .brand { font-size: 1rem; }
  .brand-mark { width: 34px; height: 34px; }
  .signal-hero .reader-intro { grid-template-columns: 1fr; padding-block: 46px 32px; gap: 36px; }
  .signal-hero h1 { font-size: clamp(3.8rem,13vw,5.5rem); margin-block: 26px; }
  .signal-hero .intro-lede { font-size: .94rem; }
  .signal-hero .reader-actions { gap: 20px; }
  .signal-hero .kicker { font-size: .59rem; letter-spacing: .1em; }
  .signal-lab { padding: 24px; }
  .signal-chart svg { height: auto; }
  .baseline-control { grid-template-columns: 1fr 88px; column-gap: 12px; padding: 12px; }
  .baseline-control > div:first-child { flex-wrap: wrap; gap: 4px 8px; }
  .signal-lab h2 { font-size: 1.8rem; }
  .lab-topline { flex-wrap: nowrap; }
  .hero-bottom { padding-block: 20px !important; gap: 16px; font-size: .64rem; }
  .hero-bottom > span { max-width: 19ch; }
  .hero-bottom a { text-align: right; }
  .reader-section { padding-block: 48px; }
  .reader-section-heading h2 { font-size: 2rem; }
  .reader-home .reader-card:not(.compact-card) { min-height: 0; }
  .reader-card h3 { max-width: 24ch; font-size: 1.55rem; }
  .reader-card-link { padding-top: 18px; }
  .reader-example { padding-block: 48px; gap: 24px; }
  .reader-example h2 { font-size: 2.4rem; }
  .compact-card { min-height: 0; }
  .reader-search-band { padding: 28px 24px !important; margin-bottom: 44px; border-radius: 18px; }
  .reader-search-band h2 { font-size: 1.7rem; }
  .reader-search-row { flex-wrap: wrap; }
  .reader-search-row input { flex: 1 1 180px; }
  .reader-page { padding-top: 38px; }
  .reader-page-heading h1 { font-size: 2.65rem; }
  .reader-page-heading .lede { font-size: .95rem; }
  .learning-path { padding: 24px; }
  .path-description h2 { font-size: 1.85rem; }
  .reading-sequence h3 { font-size: 1.17rem; }
  .guide-directory { padding: 22px; }
  .search-page .search-panel { padding: 20px; }
  .search-result h3 { font-size: 1.3rem; }
  .article h1 { font-size: 2.25rem; }
  .article h2 { font-size: 1.65rem; }
  .article .lede { font-size: 1.03rem; }
  .footer-inner { gap: 32px 20px; padding-block: 40px; }
}
@media (prefers-reduced-motion: no-preference) {
  .signal-hero .intro-copy { animation: arrive .6s ease-out both; }
  .signal-lab { animation: arrive .7s .1s ease-out both; }
  @keyframes arrive { from { transform: translateY(10px); } to { transform: translateY(0); } }
}
@media (forced-colors: active) { .chart-observed,.chart-baseline { stroke: CanvasText; } .chart-labels { fill: CanvasText; } }
@media print { .signal-hero,.signal-lab,.reader-search-band { background: white; color: black; } .reading-progress { display: none; } }