:root {
  /* MIA barely uses shadow. Separation is a hairline ring, not a drop shadow. */
  --ring-hairline: 0 0 0 1px color-mix(in oklab, var(--foreground) 10%, transparent);
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --focus-ring: 0 0 0 3px color-mix(in oklab, var(--ring) 50%, transparent);
  --focus-ring-destructive: 0 0 0 3px color-mix(in oklab, var(--destructive) 20%, transparent);
  --accent-edge: 4px; /* left border width on agent-produced artifacts */
}