.question-block {
  border-left: 5px solid #42a5f5;
  padding: 20px;
  margin-bottom: 25px;
  background: #f9f9f9;
  box-shadow: 0 1px 5px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.question-block:hover {
  background: #eef6fd;
}

.option-block label {
  display: block;
  background: #f4f4f4;
  padding: 12px 16px;
  margin: 8px 0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s ease-in-out;
  box-shadow: inset 0 0 0 1px #ccc;
}

.option-block input[type="radio"] {
  display: none;
}

.option-block label:hover {
  background: #e3f2fd;
}

.option-correct {
  background-color: #c8e6c9 !important;
  color: #2e7d32 !important;
  font-weight: bold;
}

.option-wrong {
  background-color: #ffcdd2 !important;
  color: #c62828 !important;
  font-weight: bold;
}

.card-panel ul {
  margin: 10px 0 0 10px;
}

.card-panel ul li {
  list-style: disc;
  padding-left: 5px;
  font-size: 15px;
}