* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #eaeff1;
}
header {
  background-color: #004d66;
  color: #fff;
  padding: 30px 10px;
  text-align: center;
}
nav {
  background: #007c99;
  text-align: center;
  padding: 15px;
}
nav a {
  color: #fff;
  margin: 0 20px;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
main {
  padding: 30px 15px;
  max-width: 1100px;
  margin: auto;
}
section {
  background: #fff;
  border-left: 5px solid #007c99;
  padding: 20px 30px;
  margin-bottom: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: all 0.3s ease-in-out;
}
section:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
section h2 {
  color: #004d66;
  margin-bottom: 15px;
}
ul {
  margin-left: 20px;
}
footer {
  background-color: #004d66;
  color: #fff;
  text-align: center;
  padding: 15px;
}
.highlight {
  font-weight: bold;
  color: #007c99;
}