body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}

header {
  background-color: #003366;
  color: white;
  padding: 20px;
  text-align: center;
}

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

main {
  padding: 20px;
}

.intro, .lessons, .bio, .contact-form {
  background: white;
  padding: 20px;
  margin: 20px auto;
  max-width: 800px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

footer {
  background-color: #003366;
  color: white;
  text-align: center;
  padding: 10px 0;
  position: fixed;
  width: 100%;
  bottom: 0;
}

form label, form input, form textarea, form button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
}

form input, form textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

form button {
  background-color: #003366;
  color: white;
  padding: 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

form button:hover {
  background-color: #00509e;
}