body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
  background: #f7f7f7;
  line-height: 1.6;
}

header {
  background: #ffffff;
  text-align: center;
  padding: 45px 20px 25px;
  border-bottom: 1px solid #ddd;
}

header h1 {
  margin: 0;
  font-size: 42px;
  color: #111;
}

.tagline {
  margin-top: 8px;
  font-size: 18px;
  color: #555;
}

nav {
  margin-top: 25px;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #0056b3;
  font-weight: 600;
}

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 900px;
  margin: 35px auto;
  padding: 0 20px;
}

section {
  background: #ffffff;
  margin-bottom: 25px;
  padding: 25px 30px;
  border-radius: 8px;
  border: 1px solid #e1e1e1;
}

h2 {
  margin-top: 0;
  color: #111;
  border-bottom: 2px solid #0056b3;
  padding-bottom: 6px;
}

h3 {
  margin-bottom: 5px;
  color: #222;
}

.item {
  margin-bottom: 18px;
}

ul {
  padding-left: 22px;
}

a {
  color: #0056b3;
}

footer {
  text-align: center;
  padding: 25px;
  color: #666;
  font-size: 14px;
}