body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #121212;
  color: #e0e0e0;
}

header {
  background-color: #1f2a38;
  padding: 2rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
  color: #ffffff;
}

header p {
  margin-top: 0.5rem;
  color: #bbbbbb;
}

nav {
  background-color: #273446;
  padding: 1rem;
  text-align: center;
}

nav a {
  color: #ffffff;
  margin: 0 15px;
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  color: #1abc9c;
}

section {
  padding: 3rem 1rem;
  max-width: 900px;
  margin: auto;
  border-bottom: 1px solid #333;
}

section h2 {
  color: #ffffff;
  margin-bottom: 1rem;
}

section h3 {
  color: #1abc9c;
  margin-top: 2rem;
}

section p,
section li {
  line-height: 1.6;
  color: #cccccc;
}

footer {
  background-color: #1f2a38;
  color: #bbbbbb;
  text-align: center;
  padding: 1rem;
}

.content {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 2rem;
  display: block;
}