:root {
  --bg: #f8f7f4;
  --card: #ffffff;
  --text: #111311;
  --muted: #686d67;
  --line: #e7e9e4;
  --lime: #b7ff3c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(248,247,244,.96);
}

.header-inner,
main,
footer {
  width: min(820px, calc(100% - 36px));
  margin: 0 auto;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -1px;
}

.badge {
  background: var(--lime);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 800;
}

main {
  padding: 52px 0 60px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 34px;
}

h1 {
  margin: 0 0 28px;
  font-size: clamp(30px, 6vw, 44px);
  letter-spacing: -1.5px;
}

h2 {
  margin: 34px 0 12px;
  font-size: 20px;
}

p, li {
  color: #343833;
  line-height: 1.7;
  font-size: 15px;
}

ul, ol {
  padding-left: 22px;
}

a {
  color: var(--text);
  font-weight: 750;
}

.nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}

.nav a {
  text-decoration: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 16px;
  padding: 16px;
}

.nav a:hover {
  border-color: #b7ff3c;
}

footer {
  padding: 0 0 36px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 600px) {
  .card {
    padding: 24px 20px;
  }

  .nav {
    grid-template-columns: 1fr;
  }
}