body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
  background: #f7f7f7;
  margin: 0;
  padding: 0;
  color: #222;
}

.container {
  max-width: 600px;
  margin: auto;
  padding: 24px;
  background: #fff;
  min-height: 100vh;
}

h1 {
  font-size: 22px;
  text-align: center;
  margin-bottom: 12px;
}

.lead {
  font-size: 14px;
  text-align: center;
  color: #555;
  margin-bottom: 24px;
}

.question {
  font-size: 18px;
  margin-bottom: 16px;
}

.option {
  display: block;
  width: 100%;
  padding: 14px;
  margin-bottom: 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #fafafa;
  font-size: 16px;
  cursor: pointer;
}

.option.selected {
  background: #e6f0ff;
  border-color: #4a7cff;
}

#nextBtn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  border: none;
  border-radius: 6px;
  background: #4a7cff;
  color: #fff;
  cursor: pointer;
}

#nextBtn:disabled {
  background: #aaa;
}

.hidden {
  display: none;
}

.result-item {
  margin-bottom: 16px;
  padding: 12px;
  border-left: 4px solid #ff6b6b;
  background: #fff5f5;
}

.result-item strong {
  display: block;
  margin-bottom: 4px;
}