body {
  font-family: Arial, sans-serif;
  background-color: #f0f8ff;
  color: #333;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 600px;
  margin: 40px auto;
  background: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  color: #1e90ff;
}

button {
  background-color: #1e90ff;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 5px;
  margin-top: 10px;
}

button:hover {
  background-color: #1c86ee;
}

input {
  display: block;
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border-radius: 5px;
  border: 1px solid #ccc;
  font-size: 16px;
}

.hidden {
  display: none;
}

.question {
  margin-bottom: 20px;
}

.options button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
  text-align: left;
}