/* Utility: make any sidebar widget stick below the header */
.vu-sticky{
  position: sticky;
  top: calc(var(--vu-hdr-h, 120px) + var(--vu-sticky-gap, 8px));
  z-index: 3;
}

/* Optional per-widget gap control */
.vu-sticky.gap-0  { --vu-sticky-gap: 0px; }
.vu-sticky.gap-16 { --vu-sticky-gap: 16px; }