/* ═══════════════════════════════════════════════════════════════
   v313: Segment dividers inside extended / tweened frames.
   Rendered by _createFrameElement() as a single overlay <div>
   with repeating-linear-gradient. Pointer-events:none so clicks
   still hit the parent frame. Sits BELOW the tween-slider and
   the frame-handle but ABOVE the background image.
   ═══════════════════════════════════════════════════════════════ */
.frame-segment-dividers {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 2;
    /* actual gradient set inline per-frame in _createFrameElement */
}
.frame.active .frame-segment-dividers {
    filter: brightness(1.35);
}