body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f9f9f9;
  color: #333;
}

header {
  background: #004080;
  color: white;
  padding: 1rem;
  text-align: center;
}

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

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

main {
  padding: 2rem;
}

.hero {
  background: #e0f0ff;
  padding: 2rem;
  text-align: center;
}

.cta {
  margin-top: 2rem;
  text-align: center;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background: #004080;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

.course-list {
  list-style-type: square;
  padding-left: 20px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 400px;
  margin: auto;
}

input, textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 10px;
  background-color: #004080;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #002850;
}

footer {
  background: #004080;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}