$shadow-key-umbra-opacity: rgba(85, 85, 85, 0.08) !default;
$shadow-key-penumbra-opacity: rgba(85, 85, 85, 0.06) !default;
$shadow-key-ambient-opacity: rgba(85, 85, 85, 0.03) !default;

$shadow-key-umbra: (
  0: (0 0 0 0 $shadow-key-umbra-opacity),
  1: (0 2px 10px -1px $shadow-key-umbra-opacity),
  2: (0 3px 10px -2px $shadow-key-umbra-opacity),
  3: (0 3px 30px -2px $shadow-key-umbra-opacity),
  4: (0 2px 30px -1px $shadow-key-umbra-opacity),
  5: (0 3px 30px -1px $shadow-key-umbra-opacity),
  6: (0 3px 30px -1px $shadow-key-umbra-opacity),
  7: (0 4px 30px -2px $shadow-key-umbra-opacity),
  8: (0 5px 30px -3px $shadow-key-umbra-opacity),
  9: (0 5px 30px -3px $shadow-key-umbra-opacity),
  10: (0 6px 30px -3px $shadow-key-umbra-opacity),
  11: (0 6px 30px -4px $shadow-key-umbra-opacity),
  12: (0 7px 30px -4px $shadow-key-umbra-opacity),
  13: (0 7px 30px -4px $shadow-key-umbra-opacity),
  14: (0 7px 30px -4px $shadow-key-umbra-opacity),
  15: (0 8px 30px -5px $shadow-key-umbra-opacity),
  16: (0 8px 30px -5px $shadow-key-umbra-opacity),
  17: (0 8px 30px -5px $shadow-key-umbra-opacity),
  18: (0 9px 30px -5px $shadow-key-umbra-opacity),
  19: (0 9px 30px -6px $shadow-key-umbra-opacity),
  20: (0 10px 30px -6px $shadow-key-umbra-opacity),
  21: (0 10px 30px -6px $shadow-key-umbra-opacity),
  22: (0 10px 30px -6px $shadow-key-umbra-opacity),
  23: (0 11px 30px -7px $shadow-key-umbra-opacity),
  24: (0 11px 30px -7px $shadow-key-umbra-opacity)
);

$shadow-key-penumbra: (
  0: (0 0 0 0 $shadow-key-penumbra-opacity),
  1: (0 1px 10px 0 $shadow-key-penumbra-opacity),
  2: (0 2px 20px 0 $shadow-key-penumbra-opacity),
  3: (0 3px 40px 0 $shadow-key-penumbra-opacity),
  4: (0 4px 30px 0 $shadow-key-penumbra-opacity),
  5: (0 5px 30px 0 $shadow-key-penumbra-opacity),
  6: (0 6px 30px 0 $shadow-key-penumbra-opacity),
  7: (0 7px 30px 1px $shadow-key-penumbra-opacity),
  8: (0 8px 30px 1px $shadow-key-penumbra-opacity),
  9: (0 9px 30px 1px $shadow-key-penumbra-opacity),
  10: (0 10px 30px 1px $shadow-key-penumbra-opacity),
  11: (0 11px 30px 1px $shadow-key-penumbra-opacity),
  12: (0 12px 30px 2px $shadow-key-penumbra-opacity),
  13: (0 13px 30px 2px $shadow-key-penumbra-opacity),
  14: (0 14px 30px 2px $shadow-key-penumbra-opacity),
  15: (0 15px 30px 2px $shadow-key-penumbra-opacity),
  16: (0 16px 30px 2px $shadow-key-penumbra-opacity),
  17: (0 17px 30px 2px $shadow-key-penumbra-opacity),
  18: (0 18px 30px 2px $shadow-key-penumbra-opacity),
  19: (0 19px 30px 2px $shadow-key-penumbra-opacity),
  20: (0 20px 30px 3px $shadow-key-penumbra-opacity),
  21: (0 21px 30px 3px $shadow-key-penumbra-opacity),
  22: (0 22px 30px 3px $shadow-key-penumbra-opacity),
  23: (0 23px 30px 3px $shadow-key-penumbra-opacity),
  24: (0 24px 30px 3px $shadow-key-penumbra-opacity)
);

$shadow-key-ambient: (
  0: (0 0 0 0 $shadow-key-ambient-opacity),
  1: (0 1px 30px 0 $shadow-key-ambient-opacity),
  2: (0 1px 30px 0 $shadow-key-ambient-opacity),
  3: (0 1px 30px 0 $shadow-key-ambient-opacity),
  4: (0 1px 30px 0 $shadow-key-ambient-opacity),
  5: (0 1px 30px 0 $shadow-key-ambient-opacity),
  6: (0 1px 30px 0 $shadow-key-ambient-opacity),
  7: (0 2px 30px 1px $shadow-key-ambient-opacity),
  8: (0 3px 30px 2px $shadow-key-ambient-opacity),
  9: (0 3px 30px 2px $shadow-key-ambient-opacity),
  10: (0 4px 30px 3px $shadow-key-ambient-opacity),
  11: (0 4px 30px 3px $shadow-key-ambient-opacity),
  12: (0 5px 30px 4px $shadow-key-ambient-opacity),
  13: (0 5px 30px 4px $shadow-key-ambient-opacity),
  14: (0 5px 30px 4px $shadow-key-ambient-opacity),
  15: (0 6px 30px 5px $shadow-key-ambient-opacity),
  16: (0 6px 30px 5px $shadow-key-ambient-opacity),
  17: (0 6px 30px 5px $shadow-key-ambient-opacity),
  18: (0 7px 30px 6px $shadow-key-ambient-opacity),
  19: (0 7px 30px 6px $shadow-key-ambient-opacity),
  20: (0 8px 30px 7px $shadow-key-ambient-opacity),
  21: (0 8px 40px 7px $shadow-key-ambient-opacity),
  22: (0 8px 40px 7px $shadow-key-ambient-opacity),
  23: (0 9px 40px 8px $shadow-key-ambient-opacity),
  24: (0 9px 40px 8px $shadow-key-ambient-opacity)
);