:root {
  --link-color: #5f763d;
  --meta-color: #626262;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #d9d9d9;
  color: #333;
}

body {
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  line-height: 1.65;
}

main {
  box-sizing: border-box;
  width: min(760px, calc(100% - 32px));
  min-height: calc(100vh - 80px);
  margin: 40px auto;
  padding: 44px;
  background: #fff;
  box-shadow: 0 0 20px #bbb;
}

h1 {
  margin: 26px 0 6px;
  text-align: center;
}

h2 {
  margin: 38px 0 8px;
  border-bottom: 1px solid #aaa;
}

p,
ul {
  margin: 12px 0;
}

.lead {
  margin: 0;
  color: var(--meta-color);
  text-align: center;
  font: 14px/1.5 ui-sans-serif, system-ui, sans-serif;
}

a {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 3px solid var(--link-color);
  outline-offset: 3px;
}

.site-nav a,
.page-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.page-footer {
  margin-top: 40px;
  border-top: 1px solid #ddd;
  padding-top: 18px;
  font: 600 13px/1.5 ui-sans-serif, system-ui, sans-serif;
}

@media (max-width: 600px) {
  main {
    width: calc(100% - 24px);
    min-height: calc(100svh - 24px);
    margin: 12px auto;
    padding: 24px;
  }

  h1 {
    font-size: 1.75rem;
  }

  .lead,
  .page-footer {
    font-size: 14px;
  }
}