:root {
  color-scheme: light;
  --ink: #19333a;
  --ink-soft: #31535a;
  --muted: #6c8083;
  --muted-light: #87999a;
  --paper: #f4f8f6;
  --panel: #ffffff;
  --panel-soft: #eaf3f0;
  --line: #d6e3df;
  --line-strong: #b9d0c9;
  --teal: #0f6b6b;
  --teal-dark: #084c50;
  --teal-pale: #dff0ec;
  --gold: #bd7c2f;
  --gold-pale: #fff2dc;
  --shadow: 0 24px 70px rgba(25, 51, 58, .08);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body { min-width: 320px; margin: 0; background: var(--paper); }

a { color: inherit; }

a:focus-visible { outline: 3px solid rgba(15, 107, 107, .3); outline-offset: 4px; }

.skip-link { position: absolute; z-index: 20; top: 12px; left: 12px; padding: 9px 12px; border-radius: 8px; color: #fff; background: var(--teal-dark); transform: translateY(-160%); transition: transform .16s ease; }

.skip-link:focus { transform: translateY(0); }

.site-shell { min-height: 100vh; overflow: hidden; }

.section-width, .site-header { width: min(1180px, calc(100% - 56px)); margin-right: auto; margin-left: auto; }

.site-header { position: relative; z-index: 3; padding: 25px 0; }

.site-nav { display: flex; align-items: center; gap: 28px; }

.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; }

.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; border-radius: 12px; color: #fff; background: var(--teal); box-shadow: 0 7px 17px rgba(15, 107, 107, .22); font-family: Georgia, "Times New Roman", serif; font-size: 22px; line-height: 1; }

.brand-mark-small { width: 30px; height: 30px; border-radius: 9px; font-size: 17px; box-shadow: none; }

.brand-copy { display: grid; gap: 1px; }

.brand-name { color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: 18px; letter-spacing: -.025em; }

.brand-note { color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 23px; margin-left: auto; }

.nav-links a, .nav-source { color: var(--ink-soft); font-size: 12px; font-weight: 750; text-decoration: none; }

.nav-links a:hover, .nav-source:hover, .footer-source:hover { color: var(--teal-dark); }

.nav-source { padding: 10px 13px; border: 1px solid var(--line-strong); border-radius: 8px; background: rgba(255, 255, 255, .58); }

.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(330px, .94fr); gap: clamp(45px, 7vw, 96px); align-items: center; padding-top: 92px; padding-bottom: 105px; }

.hero::before { position: absolute; z-index: -1; top: -230px; right: -250px; width: 720px; height: 720px; border-radius: 52% 48% 58% 42%; background: radial-gradient(circle at 43% 48%, rgba(184, 219, 207, .72), rgba(184, 219, 207, 0) 68%); content: ""; }

.hero-copy { max-width: 690px; }

.eyebrow { display: flex; align-items: center; gap: 8px; margin: 0 0 13px; color: var(--teal); font-size: 10px; font-weight: 850; letter-spacing: .16em; line-height: 1.4; text-transform: uppercase; }

.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }

.eyebrow-dot-gold { background: var(--gold); }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 { font-weight: 500; }

.hero h1 { max-width: 680px; margin-bottom: 23px; color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: clamp(53px, 7.2vw, 88px); letter-spacing: -.072em; line-height: .94; }

.hero-lede { max-width: 610px; margin-bottom: 0; color: var(--ink-soft); font-size: clamp(16px, 1.7vw, 19px); line-height: 1.63; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 32px; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 45px; padding: 11px 16px; border: 1px solid transparent; border-radius: 9px; font-size: 12px; font-weight: 800; line-height: 1.2; text-decoration: none; transition: background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease; }

.button:hover { transform: translateY(-1px); }

.button-primary { color: #fff; background: var(--teal); border-color: var(--teal); box-shadow: 0 10px 18px rgba(15, 107, 107, .13); }

.button-primary:hover { background: var(--teal-dark); border-color: var(--teal-dark); }

.button-secondary { color: var(--teal-dark); background: rgba(255, 255, 255, .62); border-color: var(--line-strong); }

.button-secondary:hover { background: var(--teal-pale); border-color: var(--teal); }

.hero-note { display: flex; align-items: flex-start; gap: 10px; max-width: 560px; margin-top: 27px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.55; }

.hero-note::before { flex: 0 0 auto; width: 7px; height: 7px; margin-top: 5px; border-radius: 50%; background: var(--gold); content: ""; }

.evidence-card { position: relative; padding: 25px; border: 1px solid rgba(185, 208, 201, .95); border-radius: 17px; background: rgba(255, 255, 255, .76); box-shadow: var(--shadow); backdrop-filter: blur(12px); }

.evidence-card::after { position: absolute; z-index: -1; right: 25px; bottom: -27px; width: 90px; height: 90px; border-radius: 28px; background: var(--gold-pale); content: ""; opacity: .73; transform: rotate(18deg); }

.card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 17px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }

.card-kicker { margin-bottom: 5px; color: var(--teal); font-size: 9px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }

.card-header h2 { margin-bottom: 0; font-family: Georgia, "Times New Roman", serif; font-size: 25px; letter-spacing: -.025em; }

.card-index { flex: 0 0 auto; color: var(--muted); font-size: 10px; font-weight: 750; }

.trail { display: grid; gap: 0; margin-top: 18px; }

.trail-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; }

.trail-icon { display: grid; flex: 0 0 auto; place-items: center; width: 28px; height: 28px; border-radius: 9px; color: var(--teal-dark); background: var(--teal-pale); font-size: 10px; font-weight: 850; }

.trail-item strong { display: block; margin: 2px 0 3px; color: var(--ink); font-size: 13px; }

.trail-item div span { color: var(--muted); font-size: 11px; line-height: 1.45; }

.trail-connector { width: 1px; height: 14px; margin-left: 14px; background: var(--line-strong); }

.trail-answer .trail-icon { color: #fff; background: var(--teal); }

.card-footer { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; font-weight: 750; }

.signal { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }

.section { padding-top: 88px; padding-bottom: 95px; }

.section-rule { border-top: 1px solid var(--line); }

.section-intro { max-width: 650px; }

.section-intro h2, .status-copy h2, .source-copy h2 { margin-bottom: 17px; color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: clamp(37px, 4.8vw, 59px); letter-spacing: -.06em; line-height: .98; }

.section-intro > p:last-child, .source-copy > p { max-width: 585px; margin-bottom: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.65; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 43px; }

.feature-card { min-height: 220px; padding: 22px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, .55); }

.feature-card-highlight { border-color: var(--line-strong); background: var(--panel-soft); }

.feature-number { display: grid; place-items: center; width: 27px; height: 27px; margin-bottom: 31px; border-radius: 8px; color: #fff; background: var(--teal); font-size: 10px; font-weight: 850; }

.feature-card h3, .principle h3 { margin-bottom: 9px; color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: 23px; letter-spacing: -.025em; }

.feature-card p, .principle p { margin-bottom: 0; color: var(--muted); font-size: 12px; line-height: 1.62; }

.approach-section { padding-top: 92px; }

.approach-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(44px, 8vw, 105px); align-items: start; }

.principles { display: grid; gap: 0; padding-top: 7px; }

.principle { display: grid; grid-template-columns: 37px minmax(0, 1fr); gap: 14px; padding: 19px 0; border-bottom: 1px solid var(--line); }

.principle:first-child { padding-top: 0; }

.principle:last-child { border-bottom: 0; }

.principle-mark { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--line-strong); border-radius: 9px; color: var(--teal); background: rgba(255, 255, 255, .58); font-size: 17px; font-weight: 700; }

.principle h3 { margin-top: 2px; font-size: 22px; }

.boundary-panel { display: flex; align-items: center; gap: 28px; margin-top: 56px; padding: 24px 26px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--panel-soft); }

.boundary-label { flex: 0 0 auto; color: var(--teal-dark); font-size: 10px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }

.boundary-panel p { max-width: 535px; margin-bottom: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.58; }

.boundary-line { display: flex; flex: 0 0 auto; align-items: center; gap: 5px; margin-left: auto; }

.boundary-line span { display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }

.boundary-line span:nth-child(2) { width: 24px; height: 1px; border-radius: 0; background: var(--line-strong); }

.boundary-line span:last-child { background: var(--gold); }

.status-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .8fr); gap: clamp(35px, 8vw, 100px); align-items: start; padding-top: 82px; padding-bottom: 84px; }

.status-copy h2 { max-width: 610px; margin-bottom: 0; }

.status-detail { padding-top: 5px; }

.status-detail > p:first-child { margin-bottom: 18px; color: var(--ink-soft); font-size: 14px; line-height: 1.65; }

.status-small { margin-bottom: 0; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.58; }

.source-section { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 25px; align-items: start; padding-top: 61px; padding-bottom: 83px; border-top: 1px solid var(--line); }

.source-mark { display: grid; place-items: center; width: 67px; height: 67px; border: 1px solid var(--line-strong); border-radius: 19px; color: var(--teal-dark); background: var(--teal-pale); font-size: 12px; font-weight: 900; letter-spacing: .05em; }

.source-copy h2 { max-width: 670px; margin-bottom: 13px; font-size: clamp(31px, 4vw, 47px); }

.source-copy > p { max-width: 510px; font-size: 13px; }

.text-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 18px; color: var(--teal-dark); font-size: 12px; font-weight: 850; text-decoration: none; }

.text-link:hover { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; }

.site-footer { padding-top: 26px; padding-bottom: 34px; border-top: 1px solid var(--line); }

.footer-main { display: flex; align-items: center; gap: 25px; }

.footer-copy { max-width: 405px; margin: 0 auto 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }

.footer-source { color: var(--ink-soft); font-size: 11px; font-weight: 800; text-decoration: none; }

.footer-meta { display: flex; justify-content: space-between; gap: 18px; margin-top: 23px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted-light); font-size: 10px; }

@media (max-width: 820px) {
  .section-width, .site-header { width: min(100% - 40px, 680px); }

  .site-nav { flex-wrap: wrap; gap: 18px; }

  .nav-links { order: 3; width: 100%; margin-left: 0; padding-top: 5px; }

  .nav-source { margin-left: auto; }

  .hero { grid-template-columns: 1fr; gap: 52px; padding-top: 67px; padding-bottom: 82px; }

  .hero::before { top: -170px; right: -340px; }

  .hero h1 { max-width: 590px; }

  .evidence-card { max-width: 540px; }

  .feature-grid { grid-template-columns: 1fr; }

  .feature-card { min-height: auto; }

  .feature-number { margin-bottom: 19px; }

  .approach-layout, .status-section { grid-template-columns: 1fr; gap: 38px; }

  .status-detail { max-width: 560px; padding-top: 0; }

  .boundary-panel { align-items: flex-start; flex-wrap: wrap; gap: 14px 22px; }

  .boundary-panel p { flex: 1 1 340px; }

  .boundary-line { margin-left: 0; }
}

@media (max-width: 560px) {
  .section-width, .site-header { width: min(100% - 32px, 520px); }

  .site-header { padding-top: 18px; padding-bottom: 18px; }

  .brand-name { font-size: 17px; }

  .brand-note { font-size: 8px; }

  .nav-source { padding: 8px 9px; font-size: 11px; }

  .nav-links { justify-content: space-between; gap: 12px; }

  .nav-links a { font-size: 11px; }

  .hero { padding-top: 48px; padding-bottom: 65px; }

  .hero h1 { font-size: clamp(45px, 14vw, 67px); }

  .hero-lede { font-size: 15px; }

  .hero-actions { align-items: stretch; flex-direction: column; }

  .button { width: 100%; }

  .evidence-card { padding: 20px; }

  .section { padding-top: 66px; padding-bottom: 68px; }

  .section-intro h2, .status-copy h2 { font-size: clamp(36px, 12vw, 51px); }

  .approach-section { padding-top: 68px; }

  .boundary-panel { padding: 19px; }

  .source-section { grid-template-columns: 1fr; gap: 18px; padding-top: 47px; padding-bottom: 63px; }

  .source-mark { width: 55px; height: 55px; border-radius: 16px; }

  .source-copy h2 { font-size: clamp(32px, 10vw, 45px); }

  .footer-main { align-items: flex-start; flex-wrap: wrap; }

  .footer-copy { order: 3; flex: 1 1 100%; margin-top: 2px; }

  .footer-meta { align-items: flex-start; flex-direction: column; gap: 6px; }
}

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

  .button, .skip-link { transition: none; }
}