body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
}

header {
  background-color: #1e88e5;
  color: #fff;
  padding: 20px;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2em;
}

nav {
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid #eee;
  box-shadow: 0 2px 2px rgba(0, 0, 0, 0.1);
}

nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li {
  margin: 0 10px;
}

nav a {
  color: #333;
  text-decoration: none;
}

nav a:hover {
  color: #1e88e5;
}

main {
  padding: 20px;
  min-height: calc(100vh - 140px);
}

section {
  margin: 20px 0;
}

section h2 {
  font-size: 1.5em;
  margin: 0 0 10px;
}

footer {
  background-color: #1e88e5;
  color: #fff;
  padding: 20px;
  text-align: center;
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
}

/* Responsive styles */
@media (max-width: 600px) {
  nav ul {
    display: none;
  }
  nav li {
    display: block;
    text-align: center;
  }
  nav a {
    display: block;
    padding: 10px;
  }
}