import 'package:flutter/material.dart';
import 'dart:math' as math;

extension SizeExtension on BuildContext {
  double get sf {
    final double wScreen = MediaQuery.of(this).size.width;
    final double hScreen = MediaQuery.of(this).size.height;
    // Ajusta a escala baseada no ecrã (muda os valores 1150/720 conforme a tua calibração)
    return math.min(wScreen / 1150, hScreen / 720); 
  }
}