:root{
  /* The signature pastel-mesh backdrop: peach + lavender + dusty green radial stops
     over a cream base. Depth without shadow. */
  --mesh-backdrop:
    radial-gradient(60% 55% at 12% 18%, var(--mesh-peach) 0%, rgba(255,240,230,0) 70%),
    radial-gradient(55% 60% at 82% 12%, var(--mesh-lavender) 0%, rgba(233,216,255,0) 72%),
    radial-gradient(70% 65% at 68% 88%, var(--mesh-green) 0%, rgba(223,231,220,0) 75%),
    radial-gradient(80% 70% at 30% 95%, var(--color-canvas-lavender) 0%, rgba(249,240,255,0) 70%),
    var(--color-canvas-cream);
  --mesh-backdrop-soft:
    radial-gradient(55% 60% at 80% 20%, var(--mesh-lavender) 0%, rgba(233,216,255,0) 70%),
    radial-gradient(60% 60% at 15% 85%, var(--mesh-peach) 0%, rgba(255,240,230,0) 72%),
    var(--color-canvas);
}