/* Docked panel parts shared by several panels: in-panel tabs and
   collapsible property sections. */

.subtabs-host {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.subtabs {
  display: flex;
  flex: none;
  gap: 2px;
  flex-wrap: wrap;
  padding: 4px 8px 0;
  border-bottom: 1px solid var(--border-soft);
}

.subtab {
  position: relative;
  flex: none;
  padding: 4px 8px 6px;
  border: 0;
  background: none;
  color: var(--text-dim);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}

.subtab:hover {
  color: var(--text);
}

.subtab[aria-selected='true'] {
  color: var(--text-strong);
}

.subtab[aria-selected='true']::after {
  position: absolute;
  right: 6px;
  bottom: -1px;
  left: 6px;
  height: 2px;
  border-radius: 1px;
  background: var(--text-strong);
  content: '';
}

.subtab:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -2px;
}

.subtab-panes {
  position: relative;
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.subtab-pane {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  overflow: auto;
}

.subtab-pane[hidden] {
  display: none !important;
}

/* Properties: the file or session named on top, collapsible sections. */
.properties-panel {
  container-type: inline-size;
}

.prop-header {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  margin: -2px 0 6px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-strong);
  font-weight: 600;
}

.prop-header .icon {
  flex: none;
  color: var(--text-dim);
}

.prop-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.prop-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  width: 100%;
  margin: 0;
  padding: 2px 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.prop-toggle .icon {
  flex: none;
  color: var(--text-dim);
  transition: transform 0.12s;
}

.prop-toggle[aria-expanded='false'] .icon {
  transform: rotate(-90deg);
}

.prop-toggle:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.prop-section.collapsed .prop-heading {
  margin-bottom: 0;
}

.prop-section.collapsed + .prop-section {
  margin-top: 6px;
}

.prop-body[hidden] {
  display: none;
}

/* Narrow frames: labels above values. */
@container (max-width: 260px) {
  .properties-panel .prop-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding: 2px 0;
  }
}