How to center Column content in Jetpack Compose?

Hi! I've just started learning Jetpack Compose and encountered what seems like a simple task: I need to place several elements inside a Column in the center of the screen, but I can't get it to work.

Here's my code:

@Composable\nfun MyScreen() {\n    Column(\n        modifier = Modifier.fillMaxSize()\n    ) {\n        Text("Hello, world!")\n        Button(onClick = { }) {\n            Text("Click me")\n        }\n        Text("Bottom text")\n    }\n}

Everything is stuck to the top-left corner. I've tried different modifiers: Modifier.align(Alignment.CenterHorizontally) on each element — this only works horizontally, but vertically they're still at the top. I tried adding Modifier.weight(1f) — it made things worse