:root{
  --shadow-sm:0 2px 8px rgba(20,40,58,.12);
  --shadow-md:0 4px 12px rgba(20,40,58,.15);
  --shadow-lg:0 30px 60px rgba(20,40,58,.25);
  --grid-line:rgba(20,40,58,.08);
  --bg-grid:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  --grid-size:48px 48px;
  --ease-out:cubic-bezier(.2,.8,.2,1);
  --dur-fast:120ms;--dur-base:200ms;
  --opacity-disabled:.4;
}