:root {
  color-scheme: light dark;
  --text: #202428;
  --muted: #5a6068;
  --link: #1a5fb4;
  --background: #fbfaf7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e8e6e1;
    --muted: #a4a9b0;
    --link: #8ab4f8;
    --background: #1b1e22;
  }
}

html {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 112.5%;
  line-height: 1.5;
  color: var(--text);
  background: var(--background);
}

body {
  margin: 0;
  padding: 3rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  box-sizing: border-box;
}

main {
  margin: 0 auto;
  max-width: 36rem;
  width: 100%;
  flex: 1;
}

picture img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto 1rem;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 1rem;
}

/* The logo carries the name on the page; the heading is for readers of the text alone. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

p {
  margin: 0 0 1rem;
}

ul {
  padding-left: 1.2rem;
  margin: 0 0 1rem;
}

li {
  margin: 0.4rem 0;
}

a {
  color: var(--link);
}

footer {
  max-width: 36rem;
  margin: 2rem auto 0;
  width: 100%;
  color: var(--muted);
  font-size: 0.9rem;
}