* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background-color: #fefefe;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

header {
  background-color: #00529b;
  color: white;
  padding: 30px 0;
  text-align: center;
}

nav {
  background-color: #003d73;
}

nav .container {
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 15px 0;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

nav a:hover {
  color: #f0f0f0;
}

h2 {
  color: #00529b;
  margin-top: 40px;
  border-bottom: 2px solid #e0e0e0;
  padding-bottom: 5px;
}

ul, ol {
  margin-left: 20px;
}

footer {
  background-color: #f1f1f1;
  padding: 30px 0;
  text-align: center;
  font-size: 0.9em;
  color: #666;
  margin-top: 50px;
}