*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #ffffff;
  color: #111;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

h1 {
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.lede {
  margin-top: 0.75rem;
  color: #444;
  font-size: 1.0625rem;
}

p {
  margin-top: 0.75rem;
}

p:first-of-type {
  margin-top: 0;
}

a {
  color: #111;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #555;
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e5e5e5;
  font-size: 0.875rem;
  color: #888;
}

@media (max-width: 500px) {
  main {
    padding: 3rem 1.25rem 2.5rem;
  }

  h1 {
    font-size: 1.875rem;
  }
}