body {
  background-color: #23243a;
  color: #cbd5e1;
  font-family: 'Fira Mono', 'Consolas', monospace;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.toc {
  position: fixed;
  top: 0;
  left: 0;
  width: 180px;
  height: 100vh;
  background: #191a2a;
  border-right: 1px solid #333a52;
  padding: 30px 20px 20px 16px;
  box-sizing: border-box;
}

.toc-title {
  color: #a3cef1;
  font-size: 1.25em;
  font-family: monospace;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}

.toc ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.toc li {
  margin-bottom: 14px;
}

.toc a {
  color: #80c7fa;
  text-decoration: none;
  transition: color 0.18s;
  font-size: 1em;
}

.toc a:hover {
  color: #fff4db;
  text-decoration: underline;
}

.main-content {
  margin-left: 210px;
  padding: 38px 7vw 3vw 7vw;
  min-height: 100vh;
}

header {
  margin-bottom: 30px;
  text-align: left;
}

h1 {
  font-size: 3.2em;
  color: #e4c4fe;
  font-family: monospace;
  font-weight: normal;
  margin-top: 0;
  letter-spacing: 0.16em;
  background: none;
}

h2 {
  font-size: 2em;
  margin-top: 44px;
  margin-bottom: 9px;
  color: #a3cef1;
  font-family: monospace, monospace;
  font-weight: normal;
  letter-spacing: 0.09em;
}

ul {
  padding-left: 20px;
}

li {
  font-size: 1.03em;
  margin-bottom: 7px;
}

a {
  color: #82cfff;
  text-decoration: none;
  transition: color 0.15s;
  font-family: inherit;
  word-break: break-all;
}

a:hover {
  color: #dabfff;
  text-decoration: underline;
}

#sprite {
  position: fixed;
  /*top: 20px; */
  bottom: 20px;
  right: 20px;
  width: 128px;
  z-index: 1000;
  pointer-events: none;
}