.frame {
  --stripe-button-radius: var(--radius-popup);
  flex: 1;
  display: flex;
  min-height: 0;
  min-width: 0;
}
/* No right stripe: keep the window-edge gap the stripe would have provided. */
.frameNoRight {
  padding-right: var(--island-gap);
}
.frameNoLeft {
  padding-left: var(--island-gap);
}
/*
 * Only the grid reads its track variables. Not inherited, so dragging a tool window
 * edge restyles the grid alone instead of every node in the workbench below it.
 */
@property --tw-left {
  syntax: "*";
  inherits: false;
}
@property --tw-right {
  syntax: "*";
  inherits: false;
}
@property --tw-bottom {
  syntax: "*";
  inherits: false;
}
@property --gap-left {
  syntax: "*";
  inherits: false;
}
@property --gap-right {
  syntax: "*";
  inherits: false;
}
@property --gap-bottom {
  syntax: "*";
  inherits: false;
}

.grid {
  flex: 1;
  display: grid;
  min-width: 0;
  min-height: 0;
  /* Track sizes come from ToolWindowLayout; the editor keeps 200 × 60 px and side tracks give way first. */
  grid-template-columns:
    minmax(0, var(--tw-left, 0px)) var(--gap-left, 0px) minmax(200px, 1fr) var(--gap-right, 0px)
    minmax(0, var(--tw-right, 0px));
  grid-template-rows: minmax(60px, 1fr) var(--gap-bottom, 0px) minmax(0, var(--tw-bottom, 0px));
  grid-template-areas:
    "left gap-left editor gap-right right"
    "gap-bottom gap-bottom gap-bottom gap-bottom gap-bottom"
    "bottom bottom bottom bottom bottom";
}
.widescreen {
  grid-template-areas:
    "left gap-left editor gap-right right"
    "left gap-left gap-bottom gap-right right"
    "left gap-left bottom gap-right right";
}
.grid > [data-anchor="left"] {
  grid-area: left;
}
.grid > [data-anchor="right"] {
  grid-area: right;
}
.grid > [data-anchor="bottom"] {
  grid-area: bottom;
}
.editorIsland {
  grid-area: editor;
}

/* A side: primary and split areas, each an island; stacked on the left and right, side by side at the bottom. */
.side {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}
.sideRow {
  flex-direction: row;
}
.island[hidden] {
  display: none;
}
.side > .splitGap {
  flex: none;
  height: var(--island-gap);
}
.sideRow > .splitGap {
  height: auto;
  width: var(--island-gap);
}

/* Islands: rounded surfaces on the frame background, separated by gaps. */
.island {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--bg-island);
  border-radius: var(--island-radius);
}

/* Resize handles live in the gaps; a hidden neighbour takes no gap. */
.gap {
  position: relative;
  outline: none;
}
.gap[data-gap="left"] {
  grid-area: gap-left;
}
.gap[data-gap="right"] {
  grid-area: gap-right;
}
.gap[data-gap="bottom"] {
  grid-area: gap-bottom;
}
.gap[aria-orientation="vertical"] {
  cursor: col-resize;
}
.gap[aria-orientation="horizontal"] {
  cursor: row-resize;
}
/* A slightly wider hit area than the gap itself. */
.gap::before {
  content: "";
  position: absolute;
  z-index: var(--z-panel);
}
.gap[aria-orientation="vertical"]::before {
  inset: 0 -2px;
}
.gap[aria-orientation="horizontal"]::before {
  inset: -2px 0;
}
/* Keyboard focus only: a mouse drag never focuses the handle. */
.gap:focus-visible::after {
  content: "";
  position: absolute;
  background: color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 2px;
}
.gap[aria-orientation="vertical"]::after {
  inset: 12px 2px;
}
.gap[aria-orientation="horizontal"]::after {
  inset: 2px 12px;
}

/* Stripes */
.stripe {
  /* --stripe-drag: the width under the pointer while the stripe edge is dragged. */
  --stripe-button: var(--stripe-drag, 32px);
  /* Outer padding: icons only sit centred between equal margins. */
  --stripe-pad: var(--island-gap);
  width: calc(var(--stripe-button) + var(--stripe-pad) + var(--island-gap));
  container-type: inline-size;
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0 0 6px;
  /* Transparent: stripes sit on the window frame so the project-colour wash flows from the title bar. */
  background: transparent;
  /* Short windows: scroll the buttons instead of clipping the last ones. */
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
}
.stripe::-webkit-scrollbar {
  display: none;
}
.stripeWithNames {
  --stripe-button: var(--stripe-drag, var(--stripe-button-w, 56px));
  --stripe-pad: 4px;
  gap: 4px;
}
.stripeSideLeft {
  padding-left: var(--stripe-pad);
  padding-right: var(--island-gap);
}
.stripeSideRight {
  padding-left: var(--island-gap);
  padding-right: var(--stripe-pad);
}
/* Drag the stripe's inner edge: wider shows names, narrow shows icons only. Hit area covers the stripe's gap. */
.stripeHandle {
  position: relative;
  flex: none;
  width: 0;
  outline: none;
  cursor: col-resize;
}
.stripeHandle::before {
  content: "";
  position: absolute;
  inset: 0 0 0 calc(-1 * var(--island-gap));
  z-index: var(--z-panel);
}
.stripeHandleRight::before {
  inset: 0 calc(-1 * var(--island-gap)) 0 0;
}
.stripeHandle:focus-visible::before {
  inset-block: 12px;
  margin-inline: 2px;
  background: color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 2px;
}
.stripeSpacer {
  flex: 1;
}
.stripeGroup {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: inherit;
}
/* Between a stripe group's primary and split windows. */
.stripeSeparator {
  flex: none;
  width: 16px;
  height: 1px;
  margin: 2px 0;
  background: var(--border);
}
.stripeButton {
  position: relative;
  flex: none;
  width: 32px;
  height: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border-radius: var(--stripe-button-radius);
  color: var(--fg-muted);
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}
.stripeNamed {
  width: var(--stripe-button);
  height: auto;
  min-height: 44px;
  padding: 6px 2px 5px;
}
.stripeMore {
  height: 30px;
}
.stripeWithNames .stripeMore {
  width: var(--stripe-button);
}
.stripeButton:hover,
.stripeButton[aria-expanded="true"] {
  background: var(--bg-stripe-hover);
  color: var(--fg-secondary);
}
.stripeActive,
.stripeActive:hover {
  background: var(--bg-stripe-selected);
  color: var(--fg-emphasis);
}
.stripeFocused,
.stripeFocused:hover {
  background: var(--bg-button-primary);
  color: var(--fg-button-primary);
  --icon-color: currentColor;
}
.stripeButton:focus-visible {
  outline-offset: -2px;
}
.stripeIcon {
  position: relative;
  display: flex;
}
.stripeLabel {
  max-width: 100%;
  font-size: var(--fs-stripe-label);
  line-height: 1.2;
  color: var(--fg-stripe-label);
  text-align: center;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow-wrap: normal;
  word-break: keep-all;
}
/* A single long word can't wrap: end it with an ellipsis instead of clipping mid-letter. */
.stripeLabelWord {
  display: block;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.stripeActive .stripeLabel {
  color: inherit;
}
/* Narrow stripe: one line, truncated. */
@container (max-width: 62px) {
  .stripeLabel {
    display: block;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
}
.badge {
  position: absolute;
  top: -5px;
  left: 10px;
  min-width: 13px;
  height: 13px;
  padding: 0 3px;
  border-radius: 7px;
  background: var(--bg-active);
  color: var(--fg-emphasis);
  font-family: var(--font-ui);
  font-size: 9px;
  font-weight: 600;
  line-height: 13px;
  text-align: center;
  pointer-events: none;
}

/* Anchored panels */
.window {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  outline: none;
}
.window[hidden] {
  display: none;
}
.header {
  height: var(--h-header);
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 6px 0 8px;
  color: var(--fg-emphasis);
}
.headerTabbed {
  border-bottom: 1px solid var(--border);
}
.title {
  flex: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
  color: var(--fg-strong);
}
.titlePlain {
  padding: 0 4px;
}
.titleButton {
  flex: none;
  height: 24px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 4px;
  border-radius: var(--radius-small);
  transition: background var(--dur-fast) var(--ease);
}
.titleButton:hover,
.titleButton[aria-expanded="true"] {
  background: var(--bg-toolbar-hover);
}
.titleChevron {
  flex: none;
  color: var(--fg-muted);
}
.headerContent {
  min-width: 0;
  display: flex;
  align-items: center;
  margin-left: 6px;
  overflow: hidden;
}
.headerContentOnly {
  margin-left: 0;
}
.headerSpacer {
  flex: 1;
}
.headerActions {
  display: flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.window:hover .headerActions,
.window:focus-within .headerActions,
.headerActions:has([aria-expanded="true"]) {
  opacity: 1;
}
.body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

/* stripe drag & drop */
.stripeSlot {
  position: relative;
  flex: none;
  display: flex;
  flex-direction: column;
}
.stripeDrop {
  position: absolute;
  top: -3px;
  left: 6px;
  right: 6px;
  height: 2px;
  border-radius: 1px;
  background: var(--accent);
  pointer-events: none;
}

.stripeDragged {
  opacity: 0.4;
}
.stripeGhost {
  position: fixed;
  z-index: 1000;
  margin: 0;
  pointer-events: none;
  background: var(--bg-popup);
  border-radius: var(--radius-toolbar-button);
  box-shadow: var(--shadow-popup);
  opacity: 0.9;
}

/* Settings › Appearance › "Different tool window background". */
:global(:root[data-tool-window-bg="different"]) .anchor {
  background: var(--bg-elev);
}