:root {
  --bg: #fbfaf7;
  --ink: #20282c;
  --muted: #5d686c;
  --line: #ded8cf;
  --paper: #ffffff;
  --soft: #f2eee7;
  --accent: #1f6f68;
  --accent-dark: #164f4b;
  --warm: #9e5a34;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 62px;
  padding: 0 7vw;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  font-size: 15px;
  font-weight: 800;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--accent);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.62fr);
  gap: 48px;
  align-items: center;
  padding: 72px 7vw 58px;
  border-bottom: 1px solid var(--line);
}

.intro-copy {
  max-width: 820px;
}

.eyebrow,
.repo-label {
  margin: 0 0 14px;
  color: var(--warm);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 29px;
  line-height: 1.2;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.25;
}

.lead {
  max-width: 760px;
  color: #39474c;
  font-size: 19px;
}

p {
  color: var(--muted);
}

.actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button,
.contact-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 800;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.button:hover,
.contact-links a:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.button.primary:hover {
  color: #fff;
}

.intro-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  overflow: hidden;
}

.intro-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: 0.82;
  filter: saturate(0.72) contrast(0.92);
}

.section {
  padding: 68px 7vw;
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 26px;
}

.section-heading p {
  max-width: 620px;
  margin-bottom: 0;
}

.repo-section {
  background: var(--soft);
}

.repo-list {
  display: grid;
  gap: 16px;
}

.repo {
  display: grid;
  grid-template-columns: minmax(230px, 0.35fr) minmax(0, 0.65fr);
  gap: 28px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.repo p {
  margin-bottom: 12px;
}

.repo ul {
  margin: 0 0 14px;
  padding-left: 18px;
  color: #34454a;
  font-weight: 650;
}

.repo a,
.output-list a {
  color: var(--accent);
  font-weight: 900;
}

.briefings {
  background: #f8f7f3;
}

.briefing-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
}

.briefing-lead,
.briefing-cards article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.briefing-cards {
  display: grid;
  gap: 14px;
}

.briefing-cards article {
  min-height: 138px;
}

.theme-grid,
.background-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.theme-grid article,
.background-grid div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.background {
  background: #f7f4ef;
}

.publications {
  background: #fbfaf7;
}

.publication-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.publication-grid article {
  display: flex;
  flex-direction: column;
  min-height: 230px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.publication-grid h3 {
  font-size: 19px;
}

.pub-type {
  margin-bottom: 10px;
  color: var(--warm);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.publication-grid a {
  margin-top: auto;
  color: var(--accent);
  font-weight: 900;
}

.output-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.output-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
  font-weight: 760;
}

.contact {
  padding-bottom: 88px;
}

.contact p {
  max-width: 880px;
  font-size: 18px;
}

.disclaimer {
  font-size: 14px;
}

@media (max-width: 980px) {
  .intro,
  .repo {
    grid-template-columns: 1fr;
  }

  .intro-media {
    max-width: 520px;
  }

  .theme-grid,
  .background-grid,
  .publication-grid,
  .briefing-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 20px;
  }

  nav {
    gap: 12px;
  }

  .intro,
  .section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .intro {
    padding-top: 48px;
    padding-bottom: 30px;
  }

  h1 {
    font-size: 34px;
  }

  .lead {
    font-size: 17px;
  }

  .intro-media {
    display: none;
  }

  .section-heading,
  .output-list li {
    align-items: flex-start;
    flex-direction: column;
  }
}