:root {
  --green: #0f6e56;
  --ink: #1b2622;
  --muted: #5b6a64;
  --line: #dbe5e1;
  --mint: #e1f5ee;
  --bg: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

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

header .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

nav a {
  margin-left: 18px;
  color: var(--muted);
  text-decoration: none;
}

nav a:first-child {
  margin-left: 0;
}

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

main {
  padding: 40px 0 56px;
}

h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.2;
}

h2 {
  margin: 36px 0 8px;
  font-size: 22px;
}

h3 {
  margin: 24px 0 4px;
  font-size: 17px;
}

a {
  color: var(--green);
}

.lead {
  color: var(--muted);
  font-size: 19px;
}

.card {
  margin: 28px 0;
  padding: 20px 22px;
  border-radius: 12px;
  background: var(--mint);
}

.card h2 {
  margin-top: 0;
}

.lang {
  color: var(--muted);
  font-size: 15px;
}

hr {
  margin: 48px 0;
  border: 0;
  border-top: 1px solid var(--line);
}

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

footer .wrap {
  padding-top: 20px;
  padding-bottom: 28px;
}