:root {
  --bg1: #667abd;
  --bg2: #f5f5f5;
  --bg3: #e3e3e3;
  --border: #cccccc;
  --shadow: rgba(0, 0, 0, 0.6);
}

body {
  background-color: var(--bg1);
  color: black;
  font-family:
    Roboto Mono,
    monospace;
  font-size: 1rem;
  min-height: 100vh;
  margin: 0;
}

p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

b {
  font-weight: 800;
}

h1,
h2,
h3,
h4 {
  margin-bottom: 0.25rem;
}

body,
main {
  display: flex;
  flex-direction: column;
}

main {
  overflow-y: auto;
  gap: 0.5rem;
  padding: 0 0.5rem;
}

header > div,
footer > div,
article,
.post {
  background-color: var(--bg2);
  padding: 0.5rem;
  border: 0.2rem solid var(--border);
}

header > div,
footer > div,
.post div {
  display: flex;
  justify-content: space-between;
}

@media (min-width: 1000px) {
  header > div,
  footer > div,
  article,
  .post {
    margin: 0 auto;
  }

  header > div {
    width: 28%;
  }

  .post,
  article {
    width: 51%;
  }

  footer > div {
    width: fit-content;
  }

  footer > div a:nth-child(2) {
    margin: 0 0.5rem;
  }
}

.post > p {
  margin-top: 0.25rem;
  font-size: 0.85rem;
}

header,
footer {
  position: sticky;
  padding: 0.5rem;
}

header {
  top: 0;
}

footer {
  bottom: 0;
}

header > div,
footer > div {
  box-shadow: 0.25rem 0.25rem var(--shadow);
}

pre {
  margin: 0;
  border: 0.2rem solid var(--border);
  padding: 0.25em;
  overflow-x: auto;
}

li > code,
p > code {
  background-color: var(--bg3);
}

li {
  margin: 0.5rem 0;
}