/* Hallmark · Round 20 · final optical edge treatment (A only; B/C reverted after comparison) */

/* --- A: p1 desktop — inset ends of weakened top/bottom frame edges only --- */
@media (min-width: 768px) {
  .scale-calc {
    border-top-color: transparent;
    border-bottom-color: transparent;
    background-image:
      linear-gradient(var(--color-rule-soft), var(--color-rule-soft)),
      linear-gradient(
        color-mix(in srgb, var(--color-border) 87.5%, var(--surface-work)),
        color-mix(in srgb, var(--color-border) 87.5%, var(--surface-work))
      ),
      linear-gradient(var(--color-surface-panel), var(--color-surface-panel));
    background-repeat: no-repeat;
    background-size: calc(100% - 12px) 1px, calc(100% - 12px) 1px, 100% 100%;
    background-position: 6px 0, 6px 100%, 0 0;
  }
}