body {
  font-family: Arial, sans-serif;
  margin: 0;
  line-height: 1.6;
  background: #fdfdfd;
  color: #333;
}
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 15px;
}
header {
  background: #004080;
  color: #fff;
  padding: 20px 0;
}
header h1 {
  margin: 0;
}
nav ul {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  gap: 20px;
}
nav a {
  color: #fff;
  text-decoration: none;
}
nav a.active {
  font-weight: bold;
  text-decoration: underline;
}
.hero {
  background: #e5f1ff;
  padding: 40px 0;
  text-align: center;
}
.hero img {
  max-width: 100%;
  height: auto;
  margin: 20px 0;
}
.cta {
  display: inline-block;
  background: #004080;
  color: #fff;
  padding: 10px 20px;
  margin-top: 20px;
  text-decoration: none;
  border-radius: 4px;
}
main img {
  max-width: 100%;
  height: auto;
  margin: 20px 0;
}
footer {
  background: #004080;
  color: #fff;
  text-align: center;
  padding: 15px 0;
  margin-top: 30px;
}