body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f0f8ff;
  direction: rtl;
}

header {
  background-color: #004d99;
  color: white;
  padding: 20px;
  text-align: center;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
}

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

.banner {
  background-color: #007acc;
  color: white;
  padding: 80px 20px;
  text-align: center;
}

.banner .btn {
  background-color: white;
  color: #007acc;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}

.banner .btn:hover {
  background-color: #e6f2ff;
}

footer {
  background-color: #004d99;
  color: white;
  text-align: center;
  padding: 15px;
  position: relative;
  bottom: 0;
  width: 100%;
}