/* Floating tool navigation; side panels occupy space, bottom galleries overlay. */
.tool-panels-demo-grid {
  display: grid;
  gap: var(--space-8);
}

.tool-panels-demo {
  min-width: 0;
  margin: 0;
}

.tool-panels-demo__caption {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.family-demo .tool-panels-demo__caption h4 {
  margin: 0;
}

.tool-panels {
  --tool-rail-width: 72px;
  --tool-panel-width: 320px;
  --tool-state-min-width: 72px;
  --tool-panel-duration: var(--motion-panel);
  container: tool-demo / inline-size;
  position: relative;
  width: 100%;
  height: 560px;
  min-width: 0;
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--workspace-environment);
  box-shadow: var(--shadow-1);
  color: var(--color-text-primary);
  isolation: isolate;
}

.tool-panels *,
.tool-panels *::before,
.tool-panels *::after {
  box-sizing: border-box;
}

.tool-panels [hidden] {
  display: none !important;
}

.tool-panels__layout {
  display: grid;
  grid-template-columns: var(--tool-rail-width) 0px minmax(0, 1fr);
  height: 100%;
  min-width: 0;
  transition: grid-template-columns var(--tool-panel-duration) var(--ease);
}

.tool-panels[data-tool-placement="left"][data-tool-mode="push"][data-tool-open] > .tool-panels__layout {
  grid-template-columns: var(--tool-rail-width) calc(var(--tool-panel-width) + var(--space-3)) minmax(0, 1fr);
}

.tool-panels__rail {
  position: absolute;
  top: 50%;
  left: var(--space-3);
  z-index: 12;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  height: auto;
  padding: var(--space-2);
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-full);
  transform: translateY(-50%);
  box-shadow: var(--shadow-2);
  background: var(--glass-reflection), var(--surface-pane);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
}

.tool-panels .tool-panels__trigger,
.tool-panels .tool-panel__close {
  position: relative;
  width: var(--control-lg);
  min-width: var(--control-lg);
  height: var(--control-lg);
  min-height: var(--control-lg);
  padding: 0;
  flex: none;
}

.tool-panels__icon {
  width: var(--icon-md);
  height: var(--icon-md);
  flex: none;
  stroke-width: var(--icon-stroke);
}

.tool-panels__panels {
  position: relative;
  grid-column: 2;
  grid-row: 1;
  height: 100%;
  min-width: 0;
  z-index: 10;
}

.tool-panel {
  container: tool-panel / inline-size;
  position: absolute;
  inset: var(--space-4) auto var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  width: var(--tool-panel-width);
  max-width: calc(100cqw - var(--tool-rail-width) - var(--space-3) * 2);
  min-height: 0;
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--glass-reflection), var(--surface-pane);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
  opacity: 0;
  transform: translateX(calc(-1 * var(--space-3)));
  transition: opacity var(--tool-panel-duration) var(--ease), transform var(--tool-panel-duration) var(--ease);
}

.tool-panel[data-tool-phase="opening"],
.tool-panel[data-tool-phase="open"] {
  z-index: 2;
}

.tool-panel[data-tool-phase="open"] {
  opacity: 1;
  transform: translateX(0);
}

.tool-panel[data-tool-phase="closing"] {
  z-index: 1;
  pointer-events: none;
}

.tool-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  flex: none;
  min-height: var(--control-lg);
  padding: var(--space-3) var(--space-4);
  border-bottom: var(--border-width) solid var(--color-border);
}

.family-demo .tool-panel__header h4 {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  margin: 0;
  font-size: var(--text-title);
  font-weight: var(--weight-semibold);
  line-height: var(--line-title);
}

.tool-panel__header h4 span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.tool-panel__controls {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  gap: var(--space-3);
  flex: none;
  padding: var(--space-3) var(--space-4) 0;
}

.tool-panel__state-control {
  display: flex;
  align-items: center;
  min-width: 0;
}

.tool-panel__controls .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.tool-panel__state-control .control {
  height: var(--control-lg);
  min-width: 0;
  padding-inline: var(--space-2);
  font-size: var(--text-body-small);
}

.tool-panel__state-control .custom-select {
  flex: 1;
  min-width: 0;
  width: auto;
}

.tool-panel__state-control .select-trigger {
  width: 100%;
  height: var(--control-lg);
  padding-inline: var(--space-2);
  font-size: var(--text-body-small);
  gap: var(--space-1);
}

.tool-panel__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-4);
}

.tool-panel__filter {
  position: relative;
  min-width: 0;
}

.tool-panel__filter > .icon {
  position: absolute;
  top: 50%;
  left: var(--space-3);
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

.tool-panel__filter .control {
  width: 100%;
  min-width: 0;
  height: var(--control-lg);
  padding-left: calc(var(--space-3) + var(--icon-md) + var(--space-2));
}

.tool-panel__results {
  display: grid;
  grid-auto-rows: max-content;
  align-items: start;
  gap: var(--space-2);
}

.tool-panels .tool-panel__choice {
  width: 100%;
  min-height: calc(var(--control-lg) + var(--space-3));
  height: auto;
  justify-content: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  white-space: normal;
  text-align: left;
}

.tool-panel__choice-symbol,
.tool-panels__step-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: var(--control-md);
  height: var(--control-md);
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.tool-panel__choice-copy {
  display: grid;
  flex: 1;
  min-width: 0;
  gap: var(--space-1);
}

.tool-panel__choice-copy strong {
  font-size: var(--text-body);
  line-height: var(--line-body);
}

.tool-panel__node-preview {
  display: block;
  width: 100%;
  height: 100%;
}

.tool-panels .tool-panel__empty,
.tool-panels .tool-panel__feedback {
  margin: 0;
  padding: var(--space-4);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--surface-data);
  color: var(--color-text-secondary);
  font-size: var(--text-body-small);
  line-height: var(--line-body);
}

.tool-panels .tool-panel__empty {
  margin-block: var(--space-3);
}

.tool-panels .tool-panel__feedback {
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: var(--space-3);
  margin: var(--space-4);
}

.tool-panel__feedback .btn {
  min-height: var(--control-lg);
  height: auto;
}

.tool-panels .tool-panel__footnote {
  margin-top: var(--space-4);
  color: var(--color-text-secondary);
}

.tool-panels__main {
  container: tool-main / inline-size;
  display: flex;
  flex-direction: column;
  grid-column: 3;
  grid-row: 1;
  min-width: 0;
  max-width: none;
  height: 100%;
  padding: 0;
  margin: 0;
}

.tool-panels__main-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  flex: none;
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-width) solid var(--color-border);
  background: var(--surface-content);
}

.tool-panels__main-header > div {
  min-width: 0;
}

.tool-panels__eyebrow {
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  line-height: var(--line-caption);
}

.family-demo .tool-panels__main-header h4 {
  margin: var(--space-1) 0 0;
  font-size: var(--text-title);
  line-height: var(--line-title);
}

.tool-panels__main-content {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: var(--space-5);
  background-image: radial-gradient(var(--canvas-dot) 1px, transparent 1px);
  background-size: var(--space-4) var(--space-4);
}

.tool-panels__flow-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-body-small);
}

.tool-panels__flow-caption > span {
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
}

.tool-panels__flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.tool-panels__flow > li {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  padding: var(--space-4);
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--glass-reflection), var(--surface-node);
  box-shadow: var(--shadow-control);
}

.tool-panels__flow > li > div {
  min-width: 0;
  flex: 1 1 112px;
}

.tool-panels__flow strong {
  display: block;
  font-size: var(--text-body);
  line-height: var(--line-body);
}

.tool-panels .tool-panels__flow p {
  margin-top: var(--space-1);
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  line-height: var(--line-caption);
}

.tool-panels__step-number {
  color: var(--color-text-secondary);
  font: var(--text-caption)/var(--line-caption) var(--font-mono);
}

.tool-panels__main-note {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--surface-data);
  color: var(--color-text-secondary);
  font-size: var(--text-body-small);
  line-height: var(--line-body);
}

.tool-panels__main-note h5 {
  margin-bottom: var(--space-2);
  font-size: var(--text-body-small);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.tool-panels-demo__status {
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
}

.tool-panels .tool-panels__tooltip {
  position: absolute;
  left: calc(100% + var(--space-3));
  top: 50%;
  z-index: 3;
  display: none;
  width: max-content;
  max-width: 180px;
  transform: translateY(-50%);
  white-space: normal;
  line-height: var(--line-caption);
  pointer-events: auto;
}

.tool-panels .tool-panels__tooltip::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-3));
  top: 0;
  bottom: 0;
  width: var(--space-3);
}

.tool-panels__trigger:not(:disabled):not([data-tool-tooltip-dismissed]):is(:hover, :focus-visible) .tool-panels__tooltip {
  display: block;
}

.tool-panels[data-tool-placement="bottom"] > .tool-panels__layout {
  display: block;
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__main {
  height: 100%;
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__main-content {
  padding-bottom: calc(var(--space-16) + var(--space-8));
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__rail {
  position: absolute;
  top: auto;
  bottom: var(--space-4);
  left: 50%;
  flex-direction: row;
  gap: var(--space-1);
  width: max-content;
  max-width: calc(100% - var(--space-6));
  height: auto;
  padding: var(--space-2);
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  box-shadow: var(--shadow-2);
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__panels {
  position: absolute;
  top: auto;
  bottom: calc(var(--control-lg) + var(--space-2) * 2 + var(--space-4) + var(--space-3));
  left: 50%;
  width: calc(100% - var(--space-4) * 2);
  max-width: 800px;
  height: min(380px, calc(100% - var(--control-lg) - var(--space-2) * 2 - var(--space-4) * 2 - var(--space-3)));
  transform: translateX(-50%);
}

.tool-panels[data-tool-placement="bottom"] .tool-panel {
  inset: auto 0 0;
  width: 100%;
  max-width: 100%;
  height: 100%;
  border: var(--border-width) solid var(--glass-border);
  border-radius: var(--radius-lg);
  transform: translateY(var(--space-3));
}

.tool-panels[data-tool-placement="bottom"] .tool-panel[data-tool-phase="open"] {
  transform: translateY(0);
}

/* Gallery controls remain above an independently scrolling four-column grid. */
.tool-panels[data-tool-placement="bottom"] .tool-panel__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-3);
  overflow: hidden;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__results {
  grid-column: 1;
  grid-row: 1;
  align-self: stretch;
  align-content: start;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-1);
  scrollbar-width: thin;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes .tool-panel__choice-copy strong {
  font-size: var(--text-body-small);
  line-height: var(--line-body-small);
  overflow-wrap: anywhere;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__empty {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__footnote {
  grid-column: 1;
  grid-row: 2;
  margin: 0;
  font-size: var(--text-caption);
  line-height: var(--line-caption);
}

/* Node types use a compact icon-and-title chooser rather than gallery cards. */
.tool-panels[data-tool-placement="bottom"] .tool-panel[data-tool-panel="nodes"] {
  height: auto;
  max-height: 100%;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel[data-tool-panel="nodes"] .tool-panel__body {
  flex: 0 1 auto;
  grid-template-rows: minmax(0, 1fr);
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes .tool-panel__choice {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-3) var(--space-1);
  text-align: center;
}

.tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes .tool-panel__choice-copy {
  flex: none;
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__tooltip {
  left: 50%;
  top: auto;
  bottom: calc(100% + var(--space-3));
  transform: translateX(-50%);
}

.tool-panels[data-tool-placement="bottom"] .tool-panels__tooltip::before {
  left: 0;
  top: 100%;
  width: 100%;
  height: var(--space-3);
}

@container tool-demo (max-width: 760px) {
  .tool-panels[data-tool-placement="left"][data-tool-mode="push"][data-tool-open] > .tool-panels__layout {
    grid-template-columns: var(--tool-rail-width) 0px minmax(0, 1fr);
  }
}

@container tool-demo (max-width: 240px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panels__rail {
    display: grid;
    grid-template-columns: repeat(2, var(--control-lg));
  }

  .tool-panels[data-tool-placement="bottom"] .tool-panels__panels {
    bottom: calc(var(--control-lg) * 2 + var(--space-4) * 2 + var(--space-3));
  }

  .tool-panels[data-tool-placement="bottom"] .tool-panels__main-content {
    padding-bottom: calc(var(--control-lg) * 2 + var(--space-4) * 3);
  }
}

@container tool-main (max-width: 440px) {
  .tool-panels__flow {
    grid-template-columns: minmax(0, 1fr);
  }

  .tool-panels__main-header,
  .tool-panels__main-content {
    padding-inline: var(--space-4);
  }
}

@container tool-panel (max-width: 820px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panel__results:not(.tool-panel__results--nodes) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@container tool-panel (max-width: 620px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panel__results:not(.tool-panel__results--nodes) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@container tool-panel (max-width: 420px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panel__results:not(.tool-panel__results--nodes) {
    grid-template-columns: minmax(0, 1fr);
  }
}

@container tool-panel (max-width: 600px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@container tool-panel (max-width: 440px) {
  .tool-panel__controls {
    grid-template-columns: minmax(0, 3fr) minmax(var(--tool-state-min-width), 1fr);
  }

  .tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@container tool-panel (max-width: 240px) {
  .tool-panels[data-tool-placement="bottom"] .tool-panel__results--nodes {
    grid-template-columns: minmax(0, 1fr);
  }
}

@container tool-panel (max-width: 200px) {
  .tool-panel__header {
    gap: var(--space-1);
    padding-inline: var(--space-2);
  }

  .tool-panel__header h4 > .icon {
    display: none;
  }

  .tool-panel__controls {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2);
    padding-inline: var(--space-2);
  }

  .tool-panel__body {
    padding-inline: var(--space-2);
  }

  .tool-panel__filter > .icon {
    display: none;
  }

  .tool-panel__filter .control {
    padding-inline: var(--space-2);
  }
}

@supports not (backdrop-filter: blur(1px)) {
  @supports not (-webkit-backdrop-filter: blur(1px)) {
    .tool-panels__rail,
    .tool-panel {
      background: var(--color-surface);
    }
  }
}

@media (prefers-reduced-transparency: reduce) {
  .tool-panels__rail,
  .tool-panel {
    background: var(--color-surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-panels {
    --tool-panel-duration: 0ms;
  }

  .tool-panels__layout,
  .tool-panel {
    transition: none;
  }
}

@media (forced-colors: active) {
  .tool-panels,
  .tool-panels__rail,
  .tool-panel,
  .tool-panels__main-header,
  .tool-panels__main-content {
    color: CanvasText;
    background: Canvas;
    border-color: CanvasText;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .tool-panels :is(.tool-panel__choice-symbol, .tool-panels__step-icon, .tool-panels__main-note, .tool-panel__feedback, .tool-panels__tooltip) {
    color: CanvasText;
    background: Canvas;
    border: var(--border-width) solid CanvasText;
  }

}