body {
  font-family: 'Helvetica Neue', sans-serif;
  background-color: #f7f9fb;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 680px;
  margin: auto;
  background: white;
  padding: 30px 40px;
  border-radius: 16px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
}

h1 {
  font-size: 1.9em;
  margin-bottom: 5px;
  text-align: center;
  color: #2c3e50;
}

.intro {
  font-size: 1em;
  font-style: italic;
  margin-bottom: 25px;
  text-align: center;
  color: #555;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 10px;
  line-height: 1.8;
}

.question {
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px dashed #e0e0e0;
}

.question h2 {
  font-size: 1.1em;
  margin-bottom: 10px;
  color: #2d4e6b;
}

label {
  display: block;
  margin-bottom: 6px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

label:hover {
  background-color: #f0f4f8;
}

button {
  display: block;
  margin: 40px auto 20px auto;
  padding: 10px 24px;
  font-size: 1em;
  border: none;
  background-color: #5b8ecb;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background-color: #487cb1;
}

#result {
  margin-top: 40px;
  padding: 25px;
  background: #eef6fc;
  border-left: 6px solid #5b8ecb;
  border-radius: 8px;
}

#result h2 {
  margin-top: 0;
  color: #2c3e50;
}