body {
  font-family: 'Segoe UI', sans-serif;
  background: #f4f6f9;
  color: #333;
  margin: 0;
  padding: 0;
}
.site-header {
  background: #003366;
  color: white;
  padding: 20px;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-footer {
  background: #001f3f;
  color: #ccc;
  text-align: center;
  padding: 20px;
}
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}