:root {
  --paper: #f7f4ef;
  --paper-deep: #eee9e1;
  --ink: #111310;
  --muted: #68665f;
  --green: #0f1f1c;
  --gold: #b88b3d;
  --line: rgba(17, 19, 16, 0.18);
  --serif: "Playfair Display", "Iowan Old Style", Baskerville, Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 1440px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img { display: block; width: 100%; }
a { color: inherit; }
button, input { font: inherit; }
.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;
}
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 999;
  background: var(--green);
  color: white;
  padding: .75rem 1rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  max-width: var(--max);
  min-height: 110px;
  margin: 0 auto;
  padding: 1.3rem 3rem;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 244, 239, .96);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: .88;
  min-width: 285px;
}
.brand-name,
.brand-institute {
  font-family: var(--serif);
  letter-spacing: -.03em;
}
.brand-name { font-size: clamp(1.55rem, 2.2vw, 2.65rem); }
.brand-institute { font-size: .88rem; letter-spacing: .48em; margin-top: .65rem; }
.brand-descriptor {
  font-size: .63rem;
  letter-spacing: .19em;
  text-transform: uppercase;
  line-height: 1.8;
  padding-left: 1.8rem;
  border-left: 1px solid var(--line);
}
.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: clamp(1rem, 2.2vw, 2.3rem);
}
.site-nav a {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  position: relative;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -.45rem;
  height: 1px;
  background: var(--gold);
  transition: right .25s ease;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after { right: 0; }
.menu-toggle { display: none; }

.hero,
.intro,
.manifesto,
.resource-network,
.stake,
.newsletter {
  max-width: var(--max);
  margin: 0 auto;
}
.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line);
}
.hero-copy {
  padding: clamp(4rem, 7vw, 8.5rem) clamp(2rem, 5vw, 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow {
  margin: 0 0 1.15rem;
  font-size: .68rem;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow.gold,
.category { color: var(--gold); }
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(3.6rem, 6.2vw, 7.8rem);
  line-height: .93;
  letter-spacing: -.055em;
  font-weight: 500;
  margin: 0;
}
.gold-rule {
  width: 46px;
  height: 2px;
  background: var(--gold);
  margin: 1.8rem 0;
}
.gold-rule.small { width: 33px; margin: .8rem 0 1.2rem; }
.hero-list {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .18em;
  line-height: 1.9;
  margin: 0 0 1.6rem;
}
.hero-tagline {
  font-family: var(--serif);
  font-size: 1.08rem;
  margin: 0 0 2rem;
}
.hero-image { margin: 0; overflow: hidden; min-height: 650px; }
.hero-image img { height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); }
.button-row { display: flex; flex-wrap: wrap; gap: 1rem; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .85rem 1.35rem;
  border: 1px solid var(--ink);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .66rem;
  font-weight: 600;
  cursor: pointer;
}
.button-dark { background: var(--ink); color: white; }
.button-outline { background: transparent; color: var(--ink); }
.button-gold { background: var(--gold); color: white; border-color: var(--gold); }
.button:hover, .button:focus-visible { transform: translateY(-1px); box-shadow: 0 7px 20px rgba(0,0,0,.1); }

.intro {
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  min-height: 430px;
  border-bottom: 1px solid var(--line);
}
.intro-image { margin: 0; overflow: hidden; }
.intro-image img { height: 100%; object-fit: cover; filter: grayscale(1) contrast(.92); }
.intro-copy {
  padding: clamp(3rem, 6vw, 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 780px;
}
.intro-copy p { max-width: 62ch; }
.emphasis { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; }
.text-link {
  width: fit-content;
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  color: inherit;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}
.text-link span { margin-left: .45rem; }
.text-link:hover, .text-link:focus-visible { color: var(--gold); }

.study-section,
.publications {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem clamp(2rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.section-heading { margin-bottom: 1rem; }
.study-grid { display: grid; grid-template-columns: repeat(6, 1fr); }
.study-card {
  padding: .6rem 1.5rem 1.5rem;
  min-height: 285px;
  border-left: 1px solid var(--line);
}
.study-card:first-child { border-left: 0; padding-left: 0; }
.study-card .number {
  display: block;
  font-family: var(--serif);
  font-size: 1.15rem;
  margin-bottom: .2rem;
}
.study-card .icon { display: block; font-size: 2rem; font-weight: 300; line-height: 1; margin-bottom: 1rem; }
.study-card h2 {
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.15;
  margin: 0 0 .9rem;
}
.study-card p { font-family: var(--serif); font-size: .95rem; line-height: 1.45; margin: 0; }

.manifesto {
  display: grid;
  grid-template-columns: 1fr 1.16fr 1fr;
  border-bottom: 1px solid var(--line);
}
.manifesto-copy { padding: clamp(2.5rem, 4.7vw, 5rem); display: flex; flex-direction: column; justify-content: center; }
.manifesto-copy h2,
.resource-network h2,
.stake blockquote p,
.newsletter h2 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -.035em;
}
.manifesto-copy h2 { font-size: clamp(2rem, 3vw, 3.6rem); line-height: 1.02; margin: 0; }
.manifesto-copy p { font-family: var(--serif); font-size: 1rem; }
.manifesto-image { margin: 0; min-height: 420px; overflow: hidden; }
.manifesto-image img { height: 100%; object-fit: cover; filter: grayscale(1); }

.section-bar { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 1.5rem; }
.section-bar h2 { margin: 0; font-size: .75rem; text-transform: uppercase; letter-spacing: .16em; }
.section-bar p { margin: 0; color: var(--muted); font-size: .78rem; }
.publication-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.3rem; }
.publication-card { border: 1px solid var(--line); background: rgba(255,255,255,.28); }
.publication-card > img { aspect-ratio: 1.85; object-fit: cover; filter: grayscale(1); }
.publication-body { padding: 1.25rem; }
.category { font-size: .6rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 600; margin: 0 0 .45rem; }
.publication-card h3 { font-family: var(--serif); font-size: 1.55rem; line-height: 1.12; margin: 0 0 .7rem; }
.publication-card p:not(.category) { font-family: var(--serif); font-size: .9rem; line-height: 1.45; min-height: 6.4em; }

.resource-network {
  background: var(--green);
  color: white;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  padding: clamp(4rem, 7vw, 7rem) clamp(2rem, 6vw, 7rem);
}
.resource-network h2 { font-size: clamp(2.3rem, 4vw, 4.7rem); line-height: 1.03; margin: 0; }
.resource-network p { max-width: 56ch; }
.button-outline.light { color: white; border-color: rgba(255,255,255,.6); margin-top: 1rem; }

.stake {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  background: #181916;
  color: white;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.stake blockquote { margin: 0; padding: clamp(3rem, 6vw, 6rem); display: flex; gap: 1.5rem; align-items: flex-start; }
.quote-mark { color: var(--gold); font-family: var(--serif); font-size: 7rem; line-height: .7; }
.stake blockquote p { font-size: clamp(2rem, 3.6vw, 4.3rem); line-height: 1.08; margin: 0; max-width: 18ch; }
.stake-copy { padding: clamp(3rem, 6vw, 6rem); border-left: 1px solid rgba(255,255,255,.17); display: flex; flex-direction: column; justify-content: center; }
.stake-copy p:last-child { max-width: 50ch; }

.newsletter {
  padding: 3.5rem clamp(2rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 4rem;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.newsletter h2 { font-size: clamp(1.7rem, 3vw, 3rem); line-height: 1.1; margin: 0; }
.newsletter-form { display: grid; grid-template-columns: 1fr auto; }
.newsletter-form input { min-height: 50px; border: 1px solid var(--line); background: white; padding: 0 1rem; border-radius: 0; }

.site-footer {
  background: var(--green);
  color: white;
  padding: 4rem max(2rem, calc((100vw - var(--max)) / 2 + 3rem)) 1.5rem;
  display: grid;
  grid-template-columns: 1.6fr .7fr .7fr 1fr;
  gap: 3rem;
}
.brand.inverted { min-width: unset; color: white; margin-bottom: 1.5rem; }
.footer-brand p { color: rgba(255,255,255,.72); max-width: 38ch; font-size: .86rem; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: .55rem; }
.footer-column h2 { font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin: 0 0 .5rem; }
.footer-column a { color: rgba(255,255,255,.78); font-size: .8rem; text-decoration: none; }
.footer-column a:hover { color: white; }
.footer-bottom { grid-column: 1 / -1; display: flex; justify-content: space-between; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.15); color: rgba(255,255,255,.55); font-size: .68rem; }

.research-dialog {
  width: min(680px, calc(100vw - 2rem));
  border: 0;
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--paper);
  box-shadow: 0 30px 90px rgba(0,0,0,.35);
}
.research-dialog::backdrop { background: rgba(10, 12, 10, .72); }
.research-dialog h2 { font-family: var(--serif); font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1; margin: .3rem 0 1rem; }
.research-dialog h3 { font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; margin-top: 2rem; }
.dialog-close { position: absolute; top: .8rem; right: 1rem; border: 0; background: none; font-size: 2rem; cursor: pointer; }

@media (max-width: 1120px) {
  .site-header { grid-template-columns: auto 1fr auto; padding: 1rem 1.5rem; min-height: 88px; }
  .brand { min-width: auto; }
  .brand-descriptor { display: none; }
  .menu-toggle { display: grid; gap: 6px; border: 0; background: none; padding: 1rem; cursor: pointer; }
  .menu-line { width: 26px; height: 1px; background: currentColor; }
  .site-nav {
    position: absolute;
    inset: 100% 0 auto;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
  }
  .site-nav.open { display: flex; }
  .study-grid { grid-template-columns: repeat(3, 1fr); }
  .study-card:nth-child(4) { border-left: 0; }
  .publication-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 780px) {
  .site-header { grid-template-columns: 1fr auto; }
  .brand-name { font-size: 1.45rem; }
  .brand-institute { font-size: .62rem; }
  .hero, .intro, .manifesto, .resource-network, .stake, .newsletter { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-copy { order: 2; padding: 3.5rem 1.5rem 4rem; }
  .hero-image { min-height: 380px; order: 1; }
  .hero h1 { font-size: clamp(3.3rem, 15vw, 5.3rem); }
  .intro-image { min-height: 250px; }
  .intro-copy { padding: 3rem 1.5rem; }
  .study-section, .publications { padding: 3rem 1.5rem; }
  .study-grid { grid-template-columns: repeat(2, 1fr); }
  .study-card:nth-child(odd) { border-left: 0; padding-left: 0; }
  .study-card:nth-child(4) { border-left: 1px solid var(--line); padding-left: 1.5rem; }
  .manifesto-image { min-height: 360px; order: 2; }
  .manifesto-copy:first-child { order: 1; }
  .manifesto-copy:last-child { order: 3; }
  .publication-grid { grid-template-columns: 1fr; }
  .publication-card p:not(.category) { min-height: unset; }
  .resource-network { gap: 2rem; padding: 4rem 1.5rem; }
  .stake-copy { border-left: 0; border-top: 1px solid rgba(255,255,255,.17); }
  .newsletter { gap: 2rem; padding: 3rem 1.5rem; }
  .newsletter-form { grid-template-columns: 1fr; gap: .8rem; }
  .site-footer { padding: 3.5rem 1.5rem 1.5rem; grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 500px) {
  .button-row { flex-direction: column; align-items: stretch; }
  .study-grid { grid-template-columns: 1fr; }
  .study-card, .study-card:nth-child(4), .study-card:nth-child(odd) { border-left: 0; border-top: 1px solid var(--line); padding: 1.5rem 0; min-height: auto; }
  .section-bar { align-items: flex-start; flex-direction: column; gap: .5rem; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-brand, .footer-bottom { grid-column: 1; }
  .footer-bottom { flex-direction: column; gap: .5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}