:root {
  --paper: #f5f2ec;
  --paper-soft: #fbfaf7;
  --ink: #171b19;
  --muted: #5a625e;
  --line: #d8d4cb;
  --accent: #5e7d73;
  --accent-dark: #34584f;
  --panel: #ffffff;
  --focus: #1f6f61;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23, 27, 25, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 27, 25, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent 50%);
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  background: var(--ink);
  color: var(--paper-soft);
  padding: 0.65rem 0.9rem;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(216, 212, 203, 0.9);
  background: rgba(245, 242, 236, 0.94);
  backdrop-filter: blur(14px);
}

.nav-shell {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  min-width: 220px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink);
  display: grid;
  place-items: center;
  position: relative;
  flex: 0 0 auto;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
}

.brand-mark::before {
  width: 18px;
  height: 2px;
}

.brand-mark::after {
  width: 2px;
  height: 18px;
}

.brand-dot {
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  z-index: 1;
}

.brand-text strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.brand-text span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.2;
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle-label {
  display: none;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink);
  padding: 0.5rem 0.7rem;
  font: inherit;
}

.nav-toggle-label span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.55rem 0.65rem;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.page {
  position: relative;
  z-index: 1;
}

.section {
  padding: 5rem 1.25rem;
}

.section.tight {
  padding-top: 3rem;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 70px);
  display: grid;
  align-items: center;
  padding: 5.5rem 1.25rem 3rem;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  gap: 4rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.1rem, 8vw, 6.8rem);
  font-weight: 500;
}

h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.35rem;
  font-weight: 500;
}

h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.lead {
  max-width: 720px;
  margin: 1.5rem 0 0;
  color: #333936;
  font-size: 1.18rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper-soft);
  text-decoration: none;
  font-weight: 650;
}

.button.secondary {
  background: transparent;
  color: var(--ink);
}

.button:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--paper-soft);
}

.button.secondary:hover {
  background: var(--paper-soft);
  color: var(--ink);
}

.evidence-panel {
  border: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.85);
  padding: 1.2rem;
}

.evidence-panel h2 {
  font-size: 1rem;
  font-family: inherit;
  font-weight: 700;
  margin-bottom: 1rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.metric {
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.metric strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.2rem;
  line-height: 1;
  font-weight: 500;
}

.metric span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.data-visual {
  margin-top: 1.4rem;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  padding: 1rem;
}

.track {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 0.7rem;
  margin: 0.65rem 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.track span:last-child {
  height: 8px;
  background: linear-gradient(90deg, var(--accent) var(--fill), rgba(94, 125, 115, 0.16) var(--fill));
  border: 1px solid rgba(94, 125, 115, 0.35);
}

.intro-grid,
.two-col,
.cards {
  display: grid;
  gap: 1.25rem;
}

.intro-grid {
  grid-template-columns: 0.85fr 1.15fr;
  align-items: start;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel,
.card,
.quote-panel {
  border: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.78);
  padding: 1.25rem;
}

.card p,
.panel p,
.quote-panel p {
  color: var(--muted);
}

.card p:last-child,
.panel p:last-child {
  margin-bottom: 0;
}

.kicker {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0.35rem 0 0;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 2.3rem;
}

.stat-strip div {
  padding: 1.2rem 1rem;
  border-right: 1px solid var(--line);
}

.stat-strip div:last-child {
  border-right: 0;
}

.stat-strip strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-weight: 500;
}

.stat-strip span {
  color: var(--muted);
  font-size: 0.88rem;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 2rem;
}

.pipeline-step {
  min-height: 112px;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  padding: 0.85rem;
  position: relative;
}

.pipeline-step::after {
  content: "";
  position: absolute;
  right: -0.5rem;
  top: 50%;
  width: 0.5rem;
  border-top: 1px solid var(--accent);
}

.pipeline-step:last-child::after {
  display: none;
}

.pipeline-step strong {
  display: block;
  margin-bottom: 0.55rem;
}

.pipeline-step span {
  color: var(--muted);
  font-size: 0.82rem;
}

.findings-list {
  display: grid;
  gap: 1rem;
}

.finding {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
}

.tag {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  border: 1px solid rgba(94, 125, 115, 0.55);
  color: var(--accent-dark);
  padding: 0.25rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.brief {
  max-width: 840px;
  margin: 0 auto;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  padding: 2.25rem;
}

.brief h2 {
  margin-top: 2rem;
  font-size: 1.7rem;
}

.brief h2:first-child {
  margin-top: 0;
}

.brief ul,
.plain-list {
  padding-left: 1.15rem;
}

.plain-list li {
  margin: 0.4rem 0;
}

.citation-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.notice {
  border-left: 4px solid var(--accent);
  background: rgba(94, 125, 115, 0.1);
  padding: 1rem 1.1rem;
  color: #2f3a36;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.25rem;
  color: var(--muted);
}

.footer-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

@media (max-width: 920px) {
  .hero-grid,
  .intro-grid,
  .two-col,
  .cards {
    grid-template-columns: 1fr;
  }

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

  .pipeline-step::after {
    display: none;
  }

  .stat-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .nav-shell {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .brand {
    min-width: 0;
  }

  .nav-toggle-label {
    display: block;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.7rem;
  }

  .site-nav a {
    border-top: 1px solid var(--line);
    border-bottom: 0;
    padding: 0.85rem 0.2rem;
  }

  .nav-toggle:checked ~ .site-nav {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: 3.6rem;
  }

  h1 {
    font-size: clamp(2.7rem, 13vw, 4.4rem);
  }

  h2 {
    font-size: 2rem;
  }

  .metric-grid,
  .stat-strip {
    grid-template-columns: 1fr;
  }

  .stat-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .stat-strip div:last-child {
    border-bottom: 0;
  }

  .finding {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .brief {
    padding: 1.25rem;
  }

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