@font-face {
  font-family: 'z';
  src: url('z.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
}

:root {
  --bg-color: #0D1117;
  --text-color: #C9D1D9;
  --green-color: #7CE38B;
  --muted-text-color: #8B949E;
  --border-color: #21262D;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'z', monospace;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  font-size: 14px;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}


header {
  margin-bottom: 2rem;
}

header p:first-child {
  color: var(--green-color);
  font-weight: bold;
  margin: 0;
  font-size: 1.2em;
}

header p:last-child {
  color: var(--muted-text-color);
  margin: 0.5rem 0 0 0;
  font-size: 0.9em;
}

nav {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

nav span {
  margin-right: 2rem;
  cursor: pointer;
  color: var(--text-color);
  transition: color 0.2s ease;
}

nav span:hover {
  color: var(--green-color);
}

nav span.selected {
  color: var(--green-color);
}

article > div {
  margin-bottom: 2.5rem;
}

article > div > p:first-child {
  color: var(--green-color);
  font-weight: bold;
  margin-bottom: 0.5rem;
  font-size: 1em;
}

article div div {
  margin-bottom: 1.5rem;
  margin-left: 1rem;
  border-left: 2px solid var(--border-color);
  padding-left: 1rem;
}

article div div > p:first-child {
  color: var(--text-color);
  font-weight: bold;
  margin: 0;
}

article div div > p:nth-child(2) {
  color: var(--muted-text-color);
  margin: 0.25rem 0;
  font-size: 0.9em;
}

article div div > p:last-child {
  color: var(--green-color);
  margin: 0.25rem 0 0 0;
  font-size: 0.85em;
}

ul {
  margin: 0.5rem 0;
  padding-left: 1rem;
}

li {
  margin: 0.25rem 0;
  color: var(--muted-text-color);
  font-size: 0.9em;
}

#tabs article > div:last-child p {
  margin: 0.25rem 0;
  color: var(--muted-text-color);
}


@media (max-width: 768px) {
  body {
    padding: 1rem;
  }

  nav span {
    margin-right: 1rem;
    display: inline-block;
    margin-bottom: 0.5rem;
  }
}

a {
  color: var(--green-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--text-color);
  text-decoration: underline;
}

a:visited {
  color: var(--green-color);
}

article > div > p:first-child::before {
  content: "$ ";
  color: var(--green-color);
}

.loading {
  color: var(--muted-text-color);
  font-style: italic;
}