admin/src/components/PageHeader.tsx

import { Box, Stack, Typography } from "@mui/material";
import type { ReactNode } from "react";

interface Props {
  title: string;
  subtitle?: string;
  action?: ReactNode;
}

export default function PageHeader({ title, subtitle, action }: Props) {
  return (
    <Stack
      direction={{ xs: "column", sm: "row" }}
      justifyContent="space-between"
      alignItems={{ xs: "flex-start", sm: "center" }}
      spacing={2}
      sx={{ mb: 3 }}
    >
      <Box>
        <Typography variant="h4">{title}</Typography>
        {subtitle && (
          <Typography variant="body2" color="text.secondary" sx={{ mt: 0.5 }}>
            {subtitle}
          </Typography>
        )}
      </Box>
      {action}
    </Stack>
  );
}