* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
}

header {
  background-color: #2c3e50;
  color: white;
  padding: 20px 0;
  text-align: center;
}

header h1 {
  margin-bottom: 10px;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

nav ul li {
  margin: 0 15px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

main {
  max-width: 1000px;
  margin: 20px auto;
  padding: 0 20px;
}

section {
  background: white;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 5px;
}

h2 {
  color: #2980b9;
  margin-bottom: 10px;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin-bottom: 10px;
  padding-left: 10px;
  position: relative;
}

footer {
  text-align: center;
  background-color: #2c3e50;
  color: white;
  padding: 10px 0;
  margin-top: 20px;
}