body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #eef3ff;
}

.container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

.card {
  background: #fff;
  padding: 24px;
  border-radius: 8px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.08);
}

#choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.choice-btn {
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid #ccc;
  background: #fafafa;
  cursor: pointer;
  text-align: left;
}

.choice-btn:hover {
  background: #e9f0ff;
}

button {
  margin-top: 16px;
  padding: 8px 16px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  background: #3b82f6;
  color: #fff;
}

.hidden {
  display: none;
}

.result {
  margin-top: 12px;
  font-weight: bold;
}