:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #1b1f24;
  --muted: #5f6874;
  --line: #d8dde5;
  --accent: #0f766e;
  --accent-dark: #0b514c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.site-header,
.site-footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 22px 24px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

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

.nav a,
.site-footer a {
  text-decoration: none;
}

.nav a:hover,
.site-footer a:hover {
  color: var(--accent-dark);
}

main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px 56px;
}

.hero {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(44px, 8vw, 88px);
  line-height: 1.02;
}

.lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

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

.section {
  padding: 46px 0 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 24px;
  align-items: end;
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

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

.criteria-grid article {
  min-height: 178px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.criteria-grid h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.criteria-grid p,
.article p {
  margin: 0;
  color: var(--muted);
}

.article-list {
  border-top: 1px solid var(--line);
}

.article-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.article-link span {
  font-weight: 750;
}

.article-link time,
.article-meta {
  color: var(--muted);
  font-size: 14px;
}

.article-shell {
  max-width: 800px;
}

.article {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.article h1 {
  font-size: clamp(36px, 7vw, 62px);
}

.article h2 {
  margin: 38px 0 12px;
  font-size: 24px;
}

.article > p {
  margin-top: 18px;
  font-size: 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: 390px;
  }

  .section-heading,
  .criteria-grid,
  .article-link {
    grid-template-columns: 1fr;
  }

  .lead {
    font-size: 18px;
  }
}