:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #e8e8e8;
  background: #151515;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #151515;
}

main {
  width: min(860px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0;
}

h1 {
  font-size: 2.4rem;
  margin-bottom: 8px;
}

h2 {
  margin-top: 42px;
  font-size: 1.35rem;
}

h3 {
  margin-top: 28px;
}

p, li {
  color: #cfcfcf;
}

a {
  color: #f0f0f0;
}

.muted {
  color: #909090;
}

.card {
  padding: 24px;
  border: 1px solid #333;
  border-radius: 14px;
  background: #1d1d1d;
  margin: 24px 0;
}

nav {
  margin-bottom: 48px;
}

nav a {
  margin-right: 22px;
  text-decoration: none;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid #333;
  color: #888;
}

code {
  background: #252525;
  padding: 2px 6px;
  border-radius: 5px;
}

@media (max-width: 600px) {
  main {
    width: min(100% - 28px, 860px);
    padding-top: 36px;
  }

  h1 {
    font-size: 2rem;
  }
}