DraggableCard.kt

@Composable
fun DraggableCardComplex(
    card: CardModel,
    isRevealed: Boolean,
    cardOffset: Float,
    onExpand: () -> Unit,
    onCollapse: () -> Unit,
) {
    val offsetX by remember { mutableStateOf(0f) }
    val transitionState = remember {
        MutableTransitionState(isRevealed).apply {
            targetState = !isRevealed
        }
    }
    val transition = updateTransition(transitionState)
    val offsetTransition by transition.animateFloat(
        label = "cardOffsetTransition",
        transitionSpec = { tween(durationMillis = ANIMATION_DURATION) },
        targetValueByState = { if (isRevealed) cardOffset - offsetX else -offsetX },
    )
    
    Card(
        modifier = Modifier
            .offset { IntOffset((offsetX + offsetTransition).roundToInt(), 0) }
            .pointerInput(Unit) {
                detectHorizontalDragGestures { change, dragAmount ->
                   ..
                }
            },
        content = { CardTitle(cardTitle = card.title) }
    )
}