.dark-theme {
  --sky1: hsl(205, 45.0%, 8.6%);
  --sky2: hsl(202, 71.4%, 9.6%);
  --sky3: hsl(201, 74.6%, 12.2%);
  --sky4: hsl(201, 77.4%, 14.4%);
  --sky5: hsl(200, 80.3%, 16.5%);
  --sky6: hsl(200, 84.1%, 18.9%);
  --sky7: hsl(199, 90.2%, 22.1%);
  --sky8: hsl(198, 100%, 26.1%);
  --sky9: hsl(193, 98.0%, 70.0%);
  --sky10: hsl(192, 100%, 77.0%);
  --sky11: hsl(192, 85.0%, 55.8%);
  --sky12: hsl(198, 98.0%, 95.8%);
}