:root {
  /* Color-block first, shadow second. Cards are flat; only buttons carry depth. */
  --elevation-flat: none;
  --elevation-hairline: inset 0 0 0 1px var(--border-hairline);
  --elevation-button-rest: 0 1px 2px rgba(27, 97, 201, 0.16);
  --elevation-button-focus: 0 0 0 2px rgba(69, 143, 255, 0.55);
  --transition-press: 80ms linear; /* @kind other */
}