* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f7fafc;
  color: #172033;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

main {
  width: min(920px, calc(100% - 32px));
  margin: 40px auto;
  padding: 32px;
  border: 1px solid #d9e2ef;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(25, 42, 70, 0.08);
}

h1 {
  margin: 0 0 18px;
  font-size: 32px;
  line-height: 1.15;
}

h2 {
  margin: 28px 0 8px;
  font-size: 18px;
}

p,
li {
  color: #35435f;
}

a {
  color: #1459c8;
  font-weight: 700;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

nav a {
  padding: 8px 10px;
  border: 1px solid #c9d7ed;
  border-radius: 8px;
  text-decoration: none;
}

@media (max-width: 640px) {
  main {
    width: min(100% - 20px, 920px);
    margin: 16px auto;
    padding: 22px;
  }

  h1 {
    font-size: 26px;
  }
}