/* Typography & Layout */
body {
  margin: 0;
  padding: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  line-height: 1.7;
  background: linear-gradient(to right, #f9f9f9, #f0f0f0);
  color: #333;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background-color: #ffffff;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.08);
}

nav {
  margin-bottom: 2rem;
}

nav a {
  text-decoration: none;
  margin-right: 1.5rem;
  color: #006699;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

h1, h2, h3 {
  font-weight: 600;
  color: #222;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.2em;
  margin-top: 2em;
}

ul {
  padding-left: 1.5em;
}

a {
  color: #005588;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  margin-top: 4rem;
  font-size: 0.9rem;
  color: #888;
  border-top: 1px solid #ddd;
  padding-top: 1rem;
}