:root {
  color-scheme: dark;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #071311;
  color: #e8f5ef;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 80% 10%, rgba(43, 184, 145, 0.18), transparent 32rem),
    linear-gradient(145deg, #071311, #0b201a);
}

main {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: 12vh 0 10vh;
}

.eyebrow,
section span {
  color: #65d9b2;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 18px 0;
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(3rem, 9vw, 6.8rem);
  font-weight: 500;
  line-height: 0.98;
}

.lead {
  max-width: 640px;
  color: #abc7bd;
  font-size: 1.08rem;
  line-height: 1.8;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 48px;
}

a {
  border: 1px solid #2f6958;
  border-radius: 999px;
  padding: 14px 22px;
  color: inherit;
  font-weight: 700;
  text-decoration: none;
}

a.primary {
  border-color: #65d9b2;
  background: #65d9b2;
  color: #071311;
}

a:hover {
  transform: translateY(-1px);
}

section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid #23483d;
}

section div {
  display: grid;
  gap: 8px;
  padding: 20px 18px;
  overflow-wrap: anywhere;
}

section div + div {
  border-left: 1px solid #23483d;
}

article {
  max-width: 680px;
  margin-top: 50px;
  color: #abc7bd;
  line-height: 1.8;
}

article h2 {
  color: #e8f5ef;
}

code {
  color: #8eebcb;
}

@media (max-width: 680px) {
  main {
    padding-top: 8vh;
  }

  section {
    grid-template-columns: 1fr;
  }

  section div + div {
    border-top: 1px solid #23483d;
    border-left: 0;
  }
}