:root {
  --bg: #f7f7f2;
  --paper: #ffffff;
  --ink: #10151f;
  --muted: #5d6878;
  --line: #d9ded7;
  --accent: #173f35;
  --accent-2: #d9f0c9;
  --soft: #eef1ea;
  --shadow: 0 24px 70px rgba(16, 21, 31, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 247, 242, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217, 222, 215, 0.8);
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}
.logo { font-weight: 800; letter-spacing: -0.03em; }
.nav-links { display: flex; gap: 22px; color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--ink); }
.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 56px;
  padding: 92px 0 72px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
h1, h2, h3 { line-height: 1.08; margin: 0; letter-spacing: -0.04em; }
h1 { font-size: clamp(44px, 7vw, 78px); max-width: 860px; }
h2 { font-size: clamp(32px, 4vw, 50px); }
h3 { font-size: 22px; margin-bottom: 12px; }
p { color: var(--muted); font-size: 17px; }
.lead { font-size: 21px; max-width: 760px; margin: 28px 0 0; }
.hero-actions, .download-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 13px 20px;
  font-weight: 750;
  border: 1px solid var(--line);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(16, 21, 31, .10); }
.button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.button.secondary { background: var(--paper); color: var(--ink); }
.hero-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 26px;
  box-shadow: var(--shadow);
}
.card-row {
  display: grid;
  gap: 5px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.card-row:last-child { border-bottom: 0; }
.card-row span { color: var(--muted); font-size: 14px; }
.card-row strong { font-size: 18px; }
.section { padding: 84px 0; }
.section.muted { background: var(--soft); }
.section-heading { max-width: 900px; margin-bottom: 36px; }
.section-heading.narrow { max-width: 720px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
.diagram {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 22px;
  display: grid;
  gap: 12px;
  box-shadow: var(--shadow);
}
.diagram div {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  font-weight: 800;
}
.diagram span { text-align: center; color: var(--accent); font-weight: 900; }
.grid { display: grid; gap: 18px; }
.cards { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
}
.card p { margin-bottom: 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 34px 0;
}
.stat {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px;
}
.stat span { color: var(--muted); font-size: 14px; display: block; margin-bottom: 8px; }
.stat strong { display: block; font-size: 30px; letter-spacing: -0.04em; }
.table-wrap {
  overflow-x: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 18px 20px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-size: 13px; color: var(--accent); text-transform: uppercase; letter-spacing: .1em; }
tr:last-child td { border-bottom: 0; }
.note { font-size: 15px; margin-top: 18px; }
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.evidence-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 26px;
  box-shadow: 0 14px 38px rgba(16, 21, 31, 0.06);
}
.evidence-card.highlight {
  background: #fbfff6;
  border-color: #c8ddb5;
}
.tag {
  display: inline-flex;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  color: var(--accent);
  background: rgba(217, 240, 201, .38);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.evidence-card ul {
  padding-left: 18px;
  margin: 18px 0 20px;
  color: var(--muted);
}
.evidence-card li { margin: 7px 0; }
.text-link {
  color: var(--accent);
  font-weight: 850;
  border-bottom: 1px solid rgba(23, 63, 53, .35);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.process-step {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
}
.process-step span {
  display: inline-block;
  color: var(--accent);
  font-weight: 900;
  margin-bottom: 18px;
}
.callout {
  margin-top: 22px;
  background: var(--accent);
  color: #fff;
  border-radius: 26px;
  padding: 28px;
}
.callout p { color: rgba(255,255,255,.80); margin-bottom: 0; max-width: 840px; }
.boundary-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.boundary-list li {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 20px;
  color: var(--muted);
  font-size: 17px;
}
.cta {
  background: var(--accent);
  color: #fff;
}
.cta p, .cta .eyebrow { color: rgba(255,255,255,.78); }
.cta .button.primary { background: #fff; color: var(--accent); border-color: #fff; }
.cta .button.secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; }
.download-actions { justify-content: flex-end; max-width: 520px; }
.footer { padding: 26px 0; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 18px; font-size: 14px; }

@media (max-width: 980px) {
  .evidence-grid, .process-grid { grid-template-columns: 1fr 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .download-actions { justify-content: flex-start; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero, .two-col { grid-template-columns: 1fr; }
  .cards, .stats-grid, .evidence-grid, .process-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 64px; }
  .footer-inner { flex-direction: column; }
}

.evidence-note {
  margin-top: 24px;
  align-items: stretch;
}
.evidence-note > div {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
}
.inline-actions {
  margin-top: 26px;
  justify-content: flex-start;
}
.muted-link {
  color: var(--muted);
  border-bottom-color: rgba(93, 104, 120, .35);
}
@media (min-width: 981px) {
  .evidence-grid { grid-template-columns: repeat(4, 1fr); }
}