.container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 300px;
  overflow: hidden;
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border, #E4DFD8);
  border-radius: var(--radius-md, 8px);
}

.svg {
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 300px;
  color: var(--text-muted, #9C9184);
  font-size: 14px;
}

.error {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 300px;
  color: var(--error, #C0392B);
  font-size: 14px;
}

.zoomControls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border, #E4DFD8);
  border-radius: var(--radius-sm, 5px);
  padding: 4px;
  box-shadow: var(--shadow-md, 0 2px 8px rgba(44, 37, 32, 0.08));
}

.zoomBtn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-primary, #1A1612);
  font-size: 16px;
  cursor: pointer;
  border-radius: var(--radius-sm, 5px);
}

.zoomBtn:hover {
  background: var(--bg-hover, #F5F0EA);
}

.zoomLevel {
  font-size: 11px;
  color: var(--text-muted, #9C9184);
  min-width: 36px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.nodeToolbar {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px 4px;
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border, #E4DFD8);
  border-radius: var(--radius-sm, 5px);
  box-shadow: var(--shadow-lg, 0 4px 16px rgba(44, 37, 32, 0.10));
  transform: translate(-50%, -100%);
  margin-top: -6px;
  z-index: 10;
  pointer-events: auto;
}

.nodeToolbarBtn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  color: var(--text-secondary, #5C5347);
  font-size: 12px;
  cursor: pointer;
  border-radius: var(--radius-sm, 5px);
  padding: 0;
}

.nodeToolbarBtn:hover {
  background: var(--bg-hover, #F5F0EA);
  color: var(--text-primary, #1A1612);
}