/* Styles for the Conceptual Exercises */
.drag-container {
  display: flex;
  justify-content: space-around;
  gap: 10px;
}
.all-items-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 25px;
    background-color: #f7f7f7;
}
.drag-item {
  cursor: grab;
  padding: 12px 18px;
  border: 1px solid #ccc;
  border-radius: 5px;
  background-color: #ffffff;
  width: 200px; /* Uniform width for items */
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
  font-size: 14px;
  line-height: 1.4;
  touch-action: none;
}
.drag-item:hover {
    background-color: #eef;
    transform: translateY(-2px);
}
.drag-item.dragging {
    opacity: 0.5;
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}

.drop-zone {
  width: 48%;
  min-height: 220px;
  border: 2px dashed #007bff;
  padding: 10px;
  border-radius: 8px;
  text-align: center;
  background-color: #e9f7ff;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.drop-zone h4 {
  margin-top: 5px;
  margin-bottom: 10px;
  color: #007bff;
  font-size: 24px;
  font-weight: bold;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; 
}
.drop-zone.over {
  background-color: #cce5ff;
  border-color: #0056b3;
  border-style: solid;
}
/* Feedback Colors */
.correct {
  background-color: #d4edda !important; /* Light Green */
  border-color: #155724 !important;
}
.incorrect {
  background-color: #f8d7da !important; /* Light Red */
  border-color: #721c24 !important;
}
.button-group {
  text-align: center;
  margin-top: 25px;
}
.action-button {
  padding: 12px 25px;
  margin: 0 15px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  font-size: 16px;
  transition: background-color 0.3s ease, transform 0.1s;
  box-shadow: 0 4px 6px rgba(0,0,0,0.15);
}
#check-button {
  background-color: #28a745;
  color: white;
}
#check-button:hover {
  background-color: #1e7e34;
}
#reset-button {
  background-color: #ffc107;
  color: #343a40;
}
#reset-button:hover {
  background-color: #e0a800;
}

@media (max-width: 768px) {
  .drag-container {
    flex-direction: column;
  }
  .drop-zone {
    width: 100%;
  }
}