/* =======================
   IMAGE PAIRING (CENTRADO)
======================= */

/* Contenedor general del módulo */
.image-pairing {
  margin: 2rem 0;
  font-family: 'Poppins', sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* Columnas izquierda y derecha centradas */
.image-pairing .left-column,
.image-pairing .right-column {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center; /* centrado horizontal */
  align-items: center;
}

/* Imágenes arrastrables */
.image-pairing .image-item {
  width: 100px;
  height: 100px;
  object-fit: contain;
  cursor: grab;
  border: 2px solid transparent;
  border-radius: 8px;
  transition: transform 0.2s, border 0.2s;
}

/* Efecto al seleccionar o arrastrar */
.image-pairing .image-item.dragging {
  opacity: 0.6;
  transform: scale(1.05);
}

/* Drop zones centradas */
.image-pairing .drop-zone {
  width: 100px;
  height: 100px;
  border: 2px dashed #ccc;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border 0.2s, background-color 0.2s;
}

/* Drop zone cuando se pasa un elemento encima */
.image-pairing .drop-zone.hover {
  border-color: #007bff;
  background-color: rgba(0, 123, 255, 0.1);
}

/* Feedback visual después de soltar */
.image-pairing .drop-zone.correct {
  border-color: green;
  background-color: rgba(0, 128, 0, 0.1);
}

.image-pairing .drop-zone.incorrect {
  border-color: red;
  background-color: rgba(255, 0, 0, 0.1);
}

/* Puntuación */
.image-pairing .score {
  margin-top: 1rem;
  font-weight: 600;
  font-size: 1.1rem;
  color: #333;
}

/* Ajuste responsive */
@media (max-width: 600px) {
  .image-pairing .left-column,
  .image-pairing .right-column {
    justify-content: center;
    align-items: center;
  }
  
  .image-pairing .image-item,
  .image-pairing .drop-zone {
    width: 80px;
    height: 80px;
  }
}