.semantic-outline {
  width: 17rem;
  min-width: 14rem;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  border-left: 1px solid #cbd5e1;
  background: #f8fafc;
  position: relative;
}

.semantic-outline-resizer {
  position: absolute;
  top: 0;
  left: -3px;
  width: 6px;
  height: 100%;
  cursor: col-resize;
  z-index: 8;
}

.semantic-outline-resizer:hover,
.semantic-outline.resizing .semantic-outline-resizer {
  background: rgba(37, 99, 235, 0.22);
}

.semantic-outline-header {
  height: var(--panel-header-height);
  flex: 0 0 var(--panel-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid #e2e8f0;
  background: #f8fafc;
  color: #334155;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.semantic-outline-list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.45rem;
}

.outline-node {
  --outline-depth: 0;
  min-width: 0;
}

.outline-node + .outline-node {
  margin-top: 0.02rem;
}

.outline-children {
  min-width: 0;
  margin-left: 0.55rem;
  padding-left: 0.56rem;
}

.outline-children > .outline-node {
  position: relative;
}

.outline-children > .outline-node::before {
  content: "";
  position: absolute;
  top: -0.02rem;
  bottom: -0.02rem;
  left: -0.56rem;
  border-left: 1px solid rgba(148, 163, 184, 0.52);
  pointer-events: none;
}

.outline-children > .outline-node::after {
  content: "";
  position: absolute;
  top: 0.62rem;
  left: -0.56rem;
  width: 0.42rem;
  border-top: 1px solid rgba(148, 163, 184, 0.52);
  pointer-events: none;
}

.outline-children > .outline-node:last-child::before {
  bottom: auto;
  height: 0.64rem;
}

.outline-node:not(.outline-collapsed) > .outline-children {
  margin-bottom: 0.06rem;
}

.outline-row {
  --outline-depth: 0;
  display: flex;
  align-items: center;
  min-width: 0;
}

.outline-toggle {
  width: 1.1rem;
  height: 1.3rem;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: #94a3b8;
  cursor: pointer;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.outline-toggle::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
}

.outline-collapsed > .outline-row .outline-toggle::before {
  transform: rotate(-45deg) translate(-1px, 1px);
}

.outline-toggle:hover,
.outline-toggle:focus-visible {
  background: #e2e8f0;
  color: #475569;
  outline: none;
}

.outline-toggle-spacer {
  cursor: default;
  visibility: hidden;
}

.outline-toggle-spacer::before {
  content: none;
}

.outline-node-field > .outline-row > .outline-toggle-spacer {
  width: 0.5rem;
}

.outline-node-field > .outline-row > .filter-option {
  padding-left: 0.15rem;
}

.filter-option,
.filter-type-label {
  width: 100%;
  min-height: 1.3rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #334155;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.05rem 0.4rem 0.05rem 0.2rem;
  text-align: left;
  font: 0.74rem/1.2 "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
}

.filter-option-label {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.outline-pin-clear {
  width: 1.15rem;
  height: 1.15rem;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: currentColor;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  flex: 0 0 auto;
  font-size: 0.9rem;
  line-height: 1;
  opacity: 0.72;
}

.filter-option.outline-pinned .outline-pin-clear {
  display: inline-flex;
}

.outline-pin-clear:hover,
.outline-pin-clear:focus-visible {
  background: rgba(194, 65, 12, 0.12);
  opacity: 1;
  outline: none;
}

.filter-option:hover,
.filter-option:focus-visible,
.filter-type-label:hover,
.filter-type-label:focus-visible {
  background: var(--semantic-node-hover-surface);
  color: inherit;
  outline: none;
}

.filter-option.outline-hover,
.filter-type-label.outline-hover {
  background: var(--semantic-highlight-bg);
  color: inherit;
  box-shadow: inset 0 0 0 1px var(--semantic-highlight-border);
}

.filter-option.outline-pinned,
.filter-type-label.outline-pinned {
  background: var(--semantic-pinned-bg);
  color: inherit;
  box-shadow: inset 0 0 0 1px var(--semantic-pinned-border);
}

.filter-type-label {
  color: #1e40af;
}

.filter-private-type-label {
  color: #475569;
  font-weight: 650;
}

.filter-field-option {
  color: #8a5a00;
}

.filter-empty {
  padding: 0.55rem 0.45rem;
  color: #64748b;
  font-size: 0.74rem;
  font-weight: 600;
}

.workbench-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: #eef2f7;
  position: relative;
}