body {
  font-family: sans-serif;
  max-width: 600px;
  margin: 30px auto;
  padding: 20px;
  line-height: 1.6;
  background-color: #eee;
}

h2 {
  text-align: center;
}

.question {
  display: none;
  margin-bottom: 40px;
}

.question.active {
  display: block;
}

.choices {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-top: 10px;
}

.choice {
  margin: 5px;
  text-align: center;
  padding: 20px 20px;
  border: 3px solid gray;
  border-radius: 10px;
  cursor: pointer;
  border-color: #ccc;
  background-color: #fff;
  transition: background-color 0.3s, border-color 0.3s;
  user-select: none;
}

.choice:hover {
  border-color: #0ac;
}

.choice.selected {
  background-color: #0cf;
  color: white;
  border-color: #0ac;
}

textarea {
  width: 100%;
  height: 100px;
  border: 2px solid gray;
  border-radius: 8px;
  padding: 10px;
  font-size: 1em;
  resize: vertical;
}

button {
  width: 100%;
  padding: 12px;
  font-size: 1.1em;
  border: none;
  border-radius: 10px;
  background-color: #00bfff;
  color: white;
  cursor: pointer;
  margin-top: 20px;
}

button:hover {
  background-color: #0099cc;
}