body {
  font-family: Arial, sans-serif;
  margin: 40px;
  background: #f5f5f5;
}

h1 {
  color: #333;
}

form, .demande {
  background: #fff;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
}

label {
  display: block;
  margin-top: 10px;
}

input, select, textarea {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
}

button {
  margin-top: 15px;
  padding: 10px 15px;
  background: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

.demande {
  border: 1px solid #ccc;
}

.demande p {
  margin: 5px 0;
}

.demande button {
  margin-right: 10px;
}