:root {
  --grain-url: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  --grain-opacity: 0.42;
  --scanline-opacity: 0.05;

  --press-nudge: translate(1px, 1px);
  --transition-press: transform 0.08s ease;

  --shadow-none: none;
}