body {
  background-color: #000000;
  font-family: 'Courier New', monospace;
  color: #ffff66;
  margin: 0;
  padding: 0;
  display: flex;
}

.sidebar {
  width: 220px;
  background-color: #111111;
  padding: 20px;
  border-right: 4px solid #ffff66;
  height: 100vh;
  box-sizing: border-box;
  position: sticky;
  top: 0;
}

.sidebar h2 {
  font-size: 18px;
  color: #ffff66;
  margin-top: 0;
}

.sidebar ul {
  list-style: none;
  padding-left: 0;
}

.sidebar li {
  margin-bottom: 10px;
}

.sidebar a {
  color: #ffff33;
  text-decoration: none;
  font-weight: bold;
}

.sidebar a:hover {
  text-decoration: underline;
}

.main {
  flex: 1;
  padding: 40px;
  background-color: #000000;
  box-sizing: border-box;
}

h1, h2 {
  color: #ffff66;
  text-align: left;
}

hr {
  border: 1px solid #ffff66;
}

p {
  line-height: 1.6;
}

a {
  color: #ffff33;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  display: block;
  margin: 15px auto;
  border: 2px solid #ffff66;
  max-width: 100%;
}