body {
  margin: 0;
}

.main-header {
  background-color: #004080;
  color: white;
  padding: 10px 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  font-size: 1em;
  font-family: Arial, sans-serif;
}

.header-container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 1em;
  font-family: Arial, sans-serif;
}

.header-nav a {
  color: white;
  text-decoration: none;
  margin-left: 20px;
  font-size: 1em;
  transition: text-decoration 0.3s, color 0.3s;
  font-size: 1em;
  font-family: Arial, sans-serif;
}

.header-nav a:hover {
  text-decoration: underline;
  color: #cce6ff;
  font-size: 1em;
  font-family: Arial, sans-serif;
}