:root {
  color-scheme: light;
  --ink: #17211c;
  --muted: #66716b;
  --paper: #f6f7f3;
  --white: #ffffff;
  --line: #cfd6d0;
  --green: #156b4c;
  --yellow: #f0c84b;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.55;
}

body {
  margin: 0;
}

a {
  color: inherit;
  text-decoration-color: var(--green);
  text-underline-offset: 0.22em;
}

.site-header,
footer {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 24px 28px;
}

.site-header {
  border-bottom: 1px solid var(--line);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-family: "Trebuchet MS", sans-serif;
  font-weight: 700;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--green);
  color: var(--white);
  display: inline-flex;
  font-size: 13px;
  height: 30px;
  justify-content: center;
  width: 30px;
}

nav a,
footer {
  font-family: "Trebuchet MS", sans-serif;
  font-size: 14px;
}

main {
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 28px;
}

.hero {
  display: grid;
  gap: 54px;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  min-height: 68vh;
  padding: 96px 0 72px;
}

.hero-copy {
  align-self: center;
}

.eyebrow,
.fact-label {
  color: var(--green);
  font-family: "Trebuchet MS", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(44px, 6.4vw, 82px);
  font-weight: 400;
  line-height: 0.98;
  margin-bottom: 30px;
  max-width: 780px;
}

.lede {
  color: #3f4b44;
  font-size: 21px;
  max-width: 690px;
}

.signal {
  align-self: center;
  background: var(--ink);
  color: var(--white);
  padding: 34px;
}

.signal-node {
  display: grid;
  gap: 3px;
  grid-template-columns: 42px 1fr;
}

.signal-node strong,
.signal-node span:last-child {
  grid-column: 2;
}

.signal-node strong {
  font-family: "Trebuchet MS", sans-serif;
  font-size: 17px;
}

.signal-node span:last-child {
  color: #b9c4bd;
  font-size: 14px;
}

.signal-index {
  color: var(--yellow);
  font-family: "Trebuchet MS", sans-serif;
  grid-row: 1 / span 2;
}

.signal-line {
  border-left: 1px solid #526159;
  height: 38px;
  margin: 8px 0 8px 20px;
}

.facts {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.facts article {
  min-height: 240px;
  padding: 38px 30px 38px 0;
}

.facts article + article {
  border-left: 1px solid var(--line);
  padding-left: 30px;
}

.facts h2,
.boundary h2,
.policy h2 {
  font-size: 28px;
  font-weight: 400;
}

.facts p:last-child,
.boundary > p,
.policy p,
.policy li {
  color: var(--muted);
}

.boundary {
  display: grid;
  gap: 60px;
  grid-template-columns: 0.8fr 1.2fr;
  padding: 82px 0;
}

.boundary > p {
  font-size: 20px;
}

.policy-layout {
  display: grid;
  gap: 70px;
  grid-template-columns: 220px minmax(0, 720px);
  padding-bottom: 100px;
  padding-top: 78px;
}

.policy-index {
  align-self: start;
  border-top: 3px solid var(--green);
  font-family: "Trebuchet MS", sans-serif;
  font-size: 14px;
  padding-top: 20px;
  position: sticky;
  top: 24px;
}

.policy h1 {
  font-size: 64px;
}

.policy section {
  border-top: 1px solid var(--line);
  padding: 32px 0 20px;
}

.policy li + li {
  margin-top: 8px;
}

footer {
  border-top: 1px solid var(--line);
}

@media (max-width: 760px) {
  .site-header,
  footer,
  main {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    gap: 44px;
    grid-template-columns: 1fr;
    padding-top: 62px;
  }

  h1,
  .policy h1 {
    font-size: 44px;
  }

  .signal {
    padding: 28px 22px;
  }

  .facts,
  .boundary,
  .policy-layout {
    grid-template-columns: 1fr;
  }

  .facts article {
    min-height: 0;
    padding: 30px 0;
  }

  .facts article + article {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
  }

  .boundary {
    gap: 10px;
  }

  .policy-index {
    position: static;
  }
}