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

header {
  background: #003366;
  color: white;
  padding: 15px;
}

nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
}

main {
  padding: 20px;
  background: white;
  margin: 20px;
  border-radius: 8px;
}

footer {
  text-align: center;
  padding: 10px;
  background: #ddd;
}