body {
  background-color: #f5e8d7; /* Tan background */
  font-family: "Courier New", Courier, monospace;
  color: #4a2e1e; /* Dark brown text */
  margin: 0;
  padding: 0;
}

header {
  background: #3d553d; /* Dark green */
  color: #f5e8d7; /* Tan text */
  padding: 1em;
  text-align: center;
  border-bottom: 4px double #f5e8d7; /* Tan border */
}

marquee {
  margin-top: 0.5em;
  font-size: 14px;
  color: #b3d1b3; /* Light green */
}

h1, h2 {
  margin: 0.5em 0;
}

.intro {
  padding: 1.5em;
  max-width: 700px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.6;
}

.tabs {
  text-align: center;
  background-color: #e4d5c2; /* Lighter tan */
  padding: 1em;
  border-top: 2px dashed #4a2e1e; /* Dark brown border */
  border-bottom: 2px dashed #4a2e1e; /* Dark brown border */
}

.tabs a {
  margin: 0 1em;
  text-decoration: none;
  font-weight: bold;
  color: #3d553d; /* Dark green */
}

.tabs a:hover {
  text-decoration: underline;
  color: #4a2e1e; /* Dark brown */
}

.content {
  padding: 2em;
  max-width: 700px;
  margin: 0 auto;
  border-bottom: 1px solid #c8b8a5; /* Mid-tone tan */
}

footer {
  text-align: center;
  padding: 1.5em;
  font-size: 14px;
  color: #6b4e3a; /* Mid-tone brown */
}

pre {
  font-size: 5px;
  line-height: 0.7;
  text-align: center;
  padding: 2em 0;
}