body {
  background: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
  min-height: 100vh;
}
.card {
  border-radius: 1.5rem;
}
#quiz-container img {
  max-width: 100%;
  height: auto;
  border-radius: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
#quiz-img-container {
  width: 320px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem auto;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  overflow: hidden;
}
#quiz-img-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  background: none;
  border-radius: 0;
  box-shadow: none;
}
.btn-answer {
  margin: 0.5rem 0;
  width: 100%;
  font-size: 1.1rem;
}
#score {
  font-size: 1.2rem;
  font-weight: 500;
}