.memory-layout-board {
  margin: 1rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: calc(100% - var(--ncs-right-toc-width) - 3rem);
}

.memory-layout-region-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.memory-layout-note {
  font-size: 0.85rem;
  color: var(--bs-secondary-color, #6c757d);
  margin: 0 0 0.5rem;
}

.memory-layout-legend {
  margin: 0.35rem 0 0.5rem;
}

.memory-layout-bar {
  display: flex;
  width: 100%;
  min-height: 2rem;
  border: 1px solid var(--bs-border-color, #ced4da);
  border-radius: 0.25rem;
  overflow: visible;
  background: var(--bs-body-bg, #fff);
}

.memory-layout-segment {
  display: flex;
  min-width: 2px;
  min-height: 2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.35);
  position: relative;
  cursor: default;
}

.memory-layout-segment-nested {
  flex-direction: column;
  justify-content: flex-end;
  padding: 1px;
}

.memory-layout-segment::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.35rem);
  transform: translateX(-50%);
  padding: 0.3rem 0.55rem;
  border-radius: 0.2rem;
  background: var(--bs-emphasis-color, #212529);
  color: var(--bs-body-bg, #fff);
  font-size: 0.875rem;
  line-height: 1.3;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  z-index: 20;
}

.memory-layout-segment:hover::after,
.memory-layout-segment:focus-visible::after {
  opacity: 1;
  visibility: visible;
}

.memory-layout-segment-tooltip-start::after {
  left: 0;
  transform: none;
}

.memory-layout-subbar {
  display: flex;
  width: 100%;
  height: 0.85rem;
  border-radius: 0.15rem;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.memory-layout-subbar .memory-layout-segment {
  min-height: 0.85rem;
  border-right: 1px solid rgba(255, 255, 255, 0.35);
}

.memory-layout-fill {
  display: block;
  width: 100%;
  height: 100%;
}

.memory-layout-region {
  margin-bottom: 1rem;
}