* {
  box-sizing: border-box;
  margin: 0;
}

html {
  font-family: monospace;
  line-height: 1.5;
  color: white;
  background: black;
}

body {
  display: flex;
  width: 1024px;
  height: 100vh;
  margin: 0 auto;
  overflow: hidden;
  font-size: 1rem;
  background: midnightblue;
  border-inline: 0.25ch solid white;
}

h1, h2, h3 {
  text-align: left;
}

h1, h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
  text-indent: 2ch;
}

p {
  margin: 1lh 0;
  text-indent: 2ch;
}

ul {
  padding-inline-start: 2ch;
  list-style-type: disc;
}

ul > li {
  margin-top: 2ch;
}

li + ul > li {
  margin-block: 0.5ch;
}

li + li + ul, li + ul + li {
  margin-top: 2ch;
}

code {
  padding-inline: 1ch;
  background: black;
}

a {
  font-weight: bold;
  color: white;
}

img {
  display: block;
  margin: 4lh auto 0 auto;
}

main, aside {
  padding: 1lh 1.5lh 1lh 1lh;
  overflow-y: auto;
}

main {
  flex: 1;
}

aside {
  flex: 0 0 25%;
}

nav p {
  margin-top: 2lh;
  text-align: center;
}

nav a {
  font-weight: normal;
}

section {
  margin: 4lh 0;
  text-align: justify;
}

section:first-child {
  margin-top: 0;
}

article {
  margin: 2lh 0;
}

.break {
  font-size: 1.25rem;
  font-weight: bold;
  text-align: center;
}

@media (max-width: 768px) {
  body {
    width: 100vw;
    flex-direction: column;
    gap: 2lh;
  }

  aside {
    flex: 0 0 auto;
    height: 10lh;
    border-bottom: 0.25ch solid white;
  }
}