:root {
  color-scheme: light;
  --left-panel-width: 300px;
  --right-panel-width: 360px;
  --left-handle-width: 8px;
  --right-handle-width: 8px;
  --nav-height: 48px;
  --toolbar-height: 46px;
  --status-height: 28px;
  --context-menu-width: 240px;
  --ink: #202936;
  --muted: #667386;
  --line: #d7e0ea;
  --line-strong: #bfccd9;
  --panel: #f8fafc;
  --panel-raised: #ffffff;
  --surface: #f1f5f9;
  --workspace: #eaf0f6;
  --canvas: #f7fafc;
  --accent: #2f80ed;
  --accent-strong: #0b5fca;
  --accent-soft: #e7f0ff;
  --danger: #d64545;
  --control-height-sm: 30px;
  --control-height-md: 34px;
  --control-height-lg: 40px;
  --control-radius: 7px;
  --control-bg: #ffffff;
  --control-bg-hover: #f4f7fb;
  --control-bg-active: #e7f0ff;
  --control-border: #cfd9e5;
  --control-border-hover: #aebfd1;
  --control-shadow: 0 1px 0 rgba(255, 255, 255, 0.82) inset;
  --shadow: 0 18px 42px rgba(31, 41, 51, 0.12);
  --shadow-soft: 0 8px 22px rgba(31, 41, 51, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  color: var(--ink);
  background: var(--workspace);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
  user-select: none;
}

input,
select,
textarea,
button {
  accent-color: var(--accent);
}

input,
select,
textarea {
  min-width: 0;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.resize-handle:focus-visible {
  outline: 2px solid rgba(47, 128, 237, 0.42);
  outline-offset: 2px;
}

.panel::-webkit-scrollbar,
.parts-list::-webkit-scrollbar,
.canvas-toolbar::-webkit-scrollbar,
#model-json::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.panel::-webkit-scrollbar-thumb,
.parts-list::-webkit-scrollbar-thumb,
.canvas-toolbar::-webkit-scrollbar-thumb,
#model-json::-webkit-scrollbar-thumb {
  border: 3px solid transparent;
  border-radius: 999px;
  background: rgba(102, 115, 134, 0.42);
  background-clip: padding-box;
}

.studio-shell {
  display: grid;
  grid-template-rows: var(--nav-height) var(--toolbar-height) minmax(0, 1fr) var(--status-height);
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
}

.app-nav {
  display: grid;
  grid-template-columns: auto auto minmax(220px, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-width: 0;
  padding: 6px 12px;
  border-bottom: 1px solid var(--control-border);
  background: #ffffff;
  box-shadow: var(--control-shadow);
  z-index: 4;
}

.brand-block {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.brand-block h1 {
  overflow: hidden;
  color: #172033;
  font-size: 1.08rem;
  font-weight: 900;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-block p {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.menu-bar {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}

.menu-root {
  position: relative;
}

.menu-trigger {
  min-height: var(--control-height-md);
  padding: 0 11px;
  border: 1px solid transparent;
  border-radius: var(--control-radius);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 850;
}

.menu-trigger:hover,
.menu-trigger[aria-expanded="true"] {
  border-color: var(--control-border-hover);
  background: var(--control-bg-hover);
}

.menu-popover {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 8;
  display: none;
  min-width: 240px;
  padding: 7px;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(31, 41, 51, 0.18);
}

.menu-root.is-open .menu-popover {
  display: grid;
  gap: 3px;
}

.menu-section {
  display: grid;
  gap: 1px;
  min-width: 0;
  padding: 5px 0;
}

.menu-section + .menu-section {
  border-top: 1px solid #e6edf4;
}

.menu-label {
  margin: 0;
  padding: 4px 9px 5px 30px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.edit-menu-popover {
  width: 440px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.edit-menu-popover .menu-section + .menu-section {
  border-top: 0;
}

.tools-menu-popover {
  width: 260px;
  max-height: calc(100dvh - 84px);
  overflow: visible;
}

.menu-popover button,
.submenu-trigger {
  position: relative;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: var(--control-height-sm);
  width: 100%;
  padding: 0 9px;
  border: 0;
  border-radius: var(--control-radius);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 760;
  text-align: left;
}

.menu-popover button::before,
.submenu-trigger::before {
  display: inline-grid;
  width: 18px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  line-height: 1;
  content: "";
}

.menu-popover button[aria-pressed="true"]::before,
.menu-popover button[aria-current="true"]::before {
  content: "✓";
}

.menu-popover button > span,
.submenu-trigger > span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-popover button span + kbd {
  margin-left: auto;
}

.menu-popover kbd {
  color: var(--muted);
  font-family: inherit;
  font-size: 0.7rem;
  font-weight: 750;
  white-space: nowrap;
}

.menu-popover button:hover,
.submenu-root:hover > .submenu-trigger,
.submenu-root:focus-within > .submenu-trigger {
  background: var(--control-bg-hover);
}

.menu-popover button[aria-pressed="true"],
.menu-popover button[aria-current="true"] {
  color: var(--accent-strong);
  background: transparent;
}

.menu-popover button:disabled {
  cursor: not-allowed;
  color: #a3adb9;
}

.menu-popover button:disabled kbd {
  color: #b9c1ca;
}

.submenu-root {
  position: relative;
}

.submenu-trigger {
  padding-right: 8px;
}

.submenu-trigger::after {
  margin-left: auto;
  color: var(--muted);
  content: "›";
}

.submenu-popover {
  position: absolute;
  top: -7px;
  left: calc(100% + 6px);
  z-index: 9;
  display: none;
  min-width: 160px;
  padding: 7px;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(31, 41, 51, 0.18);
}

.wide-submenu-popover {
  min-width: 220px;
}

.submenu-root:hover > .submenu-popover,
.submenu-root:focus-within > .submenu-popover,
.submenu-root.is-open > .submenu-popover {
  display: grid;
  gap: 1px;
}

.document-status {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  gap: 8px;
}

.save-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #367153;
  font-size: 0.72rem;
  font-weight: 850;
  white-space: nowrap;
}

.save-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.save-status.is-saving {
  color: var(--muted);
}

.save-status.is-error {
  color: #b84040;
}

.nav-button {
  min-height: var(--control-height-md);
  padding: 0 11px;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 850;
  cursor: pointer;
  box-shadow: var(--control-shadow);
}

.nav-button[aria-expanded="false"] {
  color: var(--muted);
  background: var(--control-bg);
}

.studio-workspace {
  display: grid;
  grid-template-columns: var(--left-panel-width) var(--left-handle-width) minmax(0, 1fr) var(--right-handle-width) var(--right-panel-width);
  gap: 0;
  min-height: 0;
  overflow: hidden;
  padding: 10px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.44) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(255, 255, 255, 0.34) 0 1px, transparent 1px 100%),
    var(--workspace);
  background-size: 24px 24px;
}

.studio-shell:not(.is-left-open) {
  --left-panel-width: 0px;
  --left-handle-width: 0px;
}

.studio-shell:not(.is-right-open) {
  --right-panel-width: 0px;
  --right-handle-width: 0px;
}

.studio-shell:not(.is-left-open) .left-panel,
.studio-shell:not(.is-left-open) .left-resize-handle,
.studio-shell:not(.is-right-open) .right-panel,
.studio-shell:not(.is-right-open) .right-resize-handle {
  display: none;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 14px 34px rgba(31, 41, 51, 0.1);
}

.left-panel {
  grid-column: 1;
}

.left-resize-handle {
  grid-column: 2;
}

.stage-wrap {
  grid-column: 3;
}

#studio-canvas.is-push-pull {
  cursor: ns-resize;
}

#studio-canvas.is-push-pulling {
  cursor: grabbing;
}

#studio-canvas.is-sketching,
#studio-canvas.is-drawing-sketch {
  cursor: crosshair;
}

.right-resize-handle {
  grid-column: 4;
}

.right-panel {
  grid-column: 5;
}

.studio-header {
  display: none;
}

.resize-handle {
  align-self: stretch;
  position: relative;
  min-width: 8px;
  cursor: col-resize;
  touch-action: none;
}

.resize-handle span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3px;
  height: 44px;
  border-radius: 999px;
  background: rgba(102, 115, 134, 0.32);
  transform: translate(-50%, -50%);
}

.resize-handle:hover span,
.resize-handle:focus-visible span {
  background: rgba(60, 130, 246, 0.42);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 1.45rem;
  line-height: 1;
}

h2 {
  margin-bottom: 8px;
  color: #334155;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.tool-section {
  padding: 12px;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: var(--panel-raised);
  box-shadow: var(--control-shadow);
}

.command-bank {
  display: none;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.action-grid .tool-button[aria-pressed="true"] {
  border-color: #7caef2;
  color: #0d4d9c;
  background: var(--accent-soft);
}

.component-category {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.component-category:first-of-type {
  margin-top: 8px;
}

.component-category > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  text-transform: uppercase;
}

.tool-button,
.mode-button,
.mini-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height-lg);
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  color: var(--ink);
  background: var(--control-bg);
  font-size: 0.82rem;
  font-weight: 850;
  cursor: pointer;
  box-shadow: var(--control-shadow);
}

.tool-button:hover,
.mode-button:hover,
.mini-button:hover,
.context-menu button:hover {
  border-color: var(--control-border-hover);
  background: var(--control-bg-hover);
}

.tool-button:active,
.mode-button:active,
.mini-button:active,
.toolbar-button:active,
.nav-button:active {
  transform: translateY(1px);
}

.tool-button:disabled,
.mode-button:disabled,
.mini-button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.danger-button {
  color: #a72f2f;
}

.file-button {
  position: relative;
  overflow: hidden;
}

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.parts-section {
  min-height: 180px;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.section-title-row h2 {
  margin: 0;
}

.section-title-row p {
  min-width: 28px;
  min-height: 24px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 24px;
  text-align: center;
}

.parts-list {
  display: grid;
  gap: 6px;
  max-height: 260px;
  overflow: auto;
  padding-right: 2px;
}

.part-group {
  display: grid;
  gap: 4px;
  padding-left: 7px;
  border-left: 2px solid #b8cbe0;
}

.part-group-header {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 30px 30px 28px;
  align-items: center;
  gap: 4px;
  min-height: 30px;
  padding: 3px 4px;
  border-radius: var(--control-radius);
  color: #344b63;
  background: #edf3f9;
  font-size: 0.74rem;
  font-weight: 900;
}

.part-group-toggle,
.part-group-count,
.part-state-button {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 5px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.part-group-toggle::before {
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  transform: rotate(45deg) translate(-1px, -1px);
}

.part-group-toggle[aria-expanded="false"]::before {
  transform: rotate(-45deg);
}

.part-group-toggle:hover,
.part-group-count:hover,
.part-group-count[aria-current="true"],
.part-state-button:hover {
  color: var(--accent-strong);
  background: #dceafe;
}

.part-group-count {
  font-size: 0.72rem;
  font-weight: 900;
}

.part-group-name {
  min-width: 0;
  width: 100%;
  padding: 3px 5px;
  border: 1px solid transparent;
  border-radius: 5px;
  color: #344b63;
  background: transparent;
  font: inherit;
  outline: 0;
}

.part-group-name:hover,
.part-group-name:focus {
  border-color: #a8bdd5;
  background: #fff;
}

.part-group-children {
  display: grid;
  gap: 4px;
}

.part-list-button {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: var(--control-height-lg);
  padding: 8px 10px;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  color: var(--ink);
  background: var(--control-bg);
  cursor: pointer;
  text-align: left;
  box-shadow: var(--control-shadow);
}

.part-list-button.is-hidden-part {
  color: #7c8794;
  background: #f6f8fb;
}

.part-list-button.is-hidden-part .part-color-dot,
.part-list-button.is-hidden-part .part-name {
  opacity: 0.55;
}

.part-list-button.is-locked-part .part-name::after {
  content: " locked";
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
}

.part-list-button[aria-current="true"] {
  border-color: rgba(47, 128, 237, 0.58);
  background: var(--accent-soft);
}

.part-color-dot {
  width: 16px;
  height: 16px;
  border: 1px solid rgba(31, 41, 51, 0.18);
  border-radius: 999px;
}

.part-name {
  overflow: hidden;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.part-type {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.part-state-actions {
  display: flex;
  gap: 3px;
}

.part-state-button {
  width: 26px;
  height: 24px;
  min-height: 0;
  padding: 0;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 950;
  line-height: 1;
}

.part-state-button[aria-pressed="true"] {
  border-color: #b9cce0;
  color: #24384d;
  background: #e9f1fb;
}

.saved-view-list {
  display: grid;
  gap: 6px;
}

.saved-view-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px;
  gap: 6px;
}

.saved-view-button {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  min-height: 48px;
  padding: 3px;
  overflow: hidden;
  text-align: left;
  min-width: 0;
}

.saved-view-thumbnail {
  display: block;
  width: 72px;
  height: 40px;
  border-radius: 4px;
  object-fit: cover;
  background: #e8eef5;
}

.saved-view-placeholder {
  display: grid;
  place-items: center;
  color: #71859b;
  font-size: 0.62rem;
  font-weight: 900;
}

.saved-view-name {
  min-width: 0;
  padding: 0 7px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.saved-view-delete {
  width: 28px;
  min-height: 48px;
  padding: 0;
  color: #8f2424;
}

.saved-view-empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
}

.segmented-control .mode-button {
  border: 0;
  border-radius: 0;
}

.mode-button.is-active {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.stage-wrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: var(--canvas);
  box-shadow: 0 14px 34px rgba(31, 41, 51, 0.12), var(--control-shadow);
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  min-width: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--control-border);
  background: #f8fafc;
  box-shadow: var(--control-shadow);
  z-index: 3;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border-right: 1px solid var(--line);
}

.toolbar-group:last-child {
  border-right: 0;
}

.toolbar-button {
  min-height: var(--control-height-md);
  padding: 0 9px;
  border: 1px solid transparent;
  border-radius: var(--control-radius);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 850;
  white-space: nowrap;
}

.toolbar-button:hover,
.toolbar-button.is-active,
.toolbar-button[aria-pressed="true"] {
  border-color: var(--control-border-hover);
  color: var(--accent-strong);
  background: var(--control-bg-active);
}

.toolbar-select-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: var(--control-height-md);
  padding: 0 6px;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  color: var(--muted);
  background: var(--control-bg);
  font-size: 0.72rem;
  font-weight: 850;
  white-space: nowrap;
  box-shadow: var(--control-shadow);
}

.toolbar-select-label select {
  min-height: 26px;
  border: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.toolbar-add-label select {
  width: 118px;
}

.toolbar-select-label.compact-picker {
  padding: 0 3px;
}

.name-field,
.selection-status {
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  box-shadow: var(--control-shadow);
}

.name-field {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 170px;
  max-width: 320px;
  padding: 0 8px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.name-field:hover,
.name-field:focus-within {
  border-color: var(--control-border);
  background: var(--control-bg);
  box-shadow: var(--control-shadow);
}

.name-field span,
.field span,
.range-field span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
}

.name-field input,
.field input {
  width: 100%;
  border: 0;
  color: var(--ink);
  background: transparent;
  font-weight: 800;
  outline: 0;
}

.name-field input {
  min-width: 0;
  height: var(--control-height-md);
  font-size: 1rem;
  font-weight: 900;
}

.selection-status {
  max-width: 138px;
  padding: 10px 12px;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
  overflow: hidden;
  padding: 0 12px;
  border-top: 1px solid var(--control-border);
  background: #ffffff;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.82) inset;
}

.status-bar p {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
  white-space: nowrap;
}

.status-bar span {
  color: #7a8797;
}

.status-bar strong {
  overflow: hidden;
  max-width: 220px;
  color: #334155;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#studio-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.tool-readout {
  position: absolute;
  z-index: 4;
  min-width: 84px;
  padding: 6px 9px;
  border: 1px solid #8fa8c2;
  border-radius: 6px;
  color: #14283d;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 4px 12px rgba(34, 54, 76, 0.16);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  pointer-events: none;
  transform: translate(12px, 12px);
}

.tool-readout.is-hidden {
  display: none;
}

.tool-readout.is-centered {
  transform: translateX(-50%);
}

.context-menu {
  position: absolute;
  z-index: 5;
  display: grid;
  gap: 3px;
  width: var(--context-menu-width);
  max-width: var(--context-menu-width);
  max-height: min(520px, calc(100% - 16px));
  overflow-y: auto;
  padding: 5px;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 46px rgba(31, 41, 51, 0.2);
}

.context-menu.is-hidden {
  display: none;
}

.context-menu button {
  justify-content: flex-start;
  min-height: var(--control-height-sm);
  padding: 0 8px;
  border: 0;
  border-radius: var(--control-radius);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-weight: 850;
  text-align: left;
}

.context-menu .danger-menu-item {
  color: #8f2424;
}

.context-field {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
}

.context-field span,
.context-transform-grid span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
}

.context-field input,
.context-field select,
.context-transform-grid input {
  width: 100%;
  min-height: var(--control-height-sm);
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  color: var(--ink);
  font-weight: 800;
  font-size: 0.76rem;
  box-shadow: var(--control-shadow);
}

.context-field input[type="color"] {
  padding: 3px;
}

.context-transform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px 6px;
  border-top: 1px solid rgba(219, 228, 236, 0.72);
}

.context-transform-grid label {
  display: grid;
  gap: 4px;
}

.context-face-tools {
  display: grid;
  gap: 5px;
  padding: 4px 6px;
  border-top: 1px solid rgba(219, 228, 236, 0.72);
  background: rgba(231, 240, 255, 0.42);
  border-radius: 7px;
}

.context-face-tools p {
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
}

.context-face-delta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.context-face-delta-grid label {
  display: grid;
  gap: 3px;
}

.context-face-delta-grid span {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 900;
  text-transform: uppercase;
}

.context-face-delta-grid input {
  width: 100%;
  min-height: var(--control-height-sm);
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 850;
  box-shadow: var(--control-shadow);
}

.context-action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px;
  padding-top: 4px;
  border-top: 1px solid rgba(219, 228, 236, 0.72);
}

.context-action-grid .danger-menu-item {
  grid-column: 1 / -1;
}

.context-action-grid button {
  min-width: 0;
  font-size: 0.76rem;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.field input,
.field select {
  min-height: var(--control-height-lg);
  padding: 0 10px;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  box-shadow: var(--control-shadow);
}

.field select {
  color: var(--ink);
  font-weight: 800;
}

.field input[type="color"] {
  height: 44px;
  padding: 4px;
}

.audio-field {
  grid-template-columns: 58px minmax(0, 1fr) 54px;
}

.audio-catalog-field {
  grid-template-columns: 58px minmax(0, 1fr) 48px 56px;
}

.audio-field .mini-button {
  min-height: 30px;
  padding: 0 8px;
  font-size: 0.72rem;
}

.surface-controls {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.surface-controls label {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}

.surface-controls .check-row {
  grid-template-columns: 16px minmax(0, 1fr);
}

.surface-controls span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.surface-controls input {
  width: 100%;
  accent-color: var(--accent);
}

.detail-presets {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.detail-presets button {
  min-height: var(--control-height-sm);
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 850;
  box-shadow: var(--control-shadow);
}

.detail-presets button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.range-field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.range-field input {
  width: 100%;
  accent-color: var(--accent);
}

.compact-select {
  max-width: 112px;
  min-height: var(--control-height-sm);
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  color: var(--ink);
  background: var(--control-bg);
  font-size: 0.72rem;
  font-weight: 800;
  box-shadow: var(--control-shadow);
}

.light-source {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.light-source-header,
.light-source-header label {
  display: flex;
  align-items: center;
}

.light-source-header {
  justify-content: space-between;
  gap: 8px;
}

.light-source-header label {
  gap: 7px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
}

.light-source-header input[type="checkbox"],
.light-source > input[type="range"] {
  accent-color: var(--accent);
}

.light-source-header input[type="color"] {
  width: 30px;
  height: 24px;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fff;
}

.light-source > input[type="range"] {
  width: 100%;
}

.compact-section {
  display: grid;
  gap: 8px;
}

.compact-section h2 {
  margin: 4px 0 0;
}

.number-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.number-input {
  display: grid;
  gap: 4px;
}

.number-input span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.number-input input {
  width: 100%;
  min-height: var(--control-height-lg);
  padding: 0 8px;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  background: var(--control-bg);
  color: var(--ink);
  font-weight: 800;
  box-shadow: var(--control-shadow);
}

.json-section {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 220px;
}

.json-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.json-actions {
  display: flex;
  gap: 6px;
}

.mini-button {
  min-height: 32px;
  padding: 0 10px;
  font-size: 0.78rem;
}

#model-json {
  flex: 1;
  min-height: 180px;
  width: 100%;
  resize: none;
  border: 1px solid var(--control-border);
  border-radius: var(--control-radius);
  padding: 10px;
  color: #27313f;
  background: #f8fafc;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  outline: 0;
}

@media (max-width: 1100px) {
  :root {
    --left-panel-width: min(82vw, 320px);
    --right-panel-width: min(86vw, 360px);
  }

  .studio-workspace {
    position: relative;
    display: block;
    padding: 10px;
  }

  .studio-shell {
    grid-template-rows: auto var(--toolbar-height) minmax(0, 1fr) var(--status-height);
  }

  .stage-wrap {
    height: 100%;
  }

  .panel {
    position: absolute;
    top: 10px;
    bottom: 10px;
    z-index: 3;
    width: var(--left-panel-width);
    max-width: calc(100vw - 20px);
  }

  .left-panel {
    left: 10px;
  }

  .right-panel {
    right: 10px;
    width: var(--right-panel-width);
  }

  .resize-handle {
    display: none;
  }

  .app-nav {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    height: auto;
  }

  .brand-block {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .nav-actions {
    grid-column: 3;
    grid-row: 1;
  }

  .menu-bar {
    grid-column: 1;
    grid-row: 2;
    overflow-x: auto;
  }

  .document-status {
    grid-column: 2 / 4;
    grid-row: 2;
    justify-content: flex-end;
    overflow-x: auto;
  }

  .nav-button {
    padding: 0 10px;
  }

  .canvas-toolbar {
    padding-inline: 4px;
  }

  .status-bar {
    gap: 12px;
    overflow-x: auto;
  }

  .tools-menu-popover {
    position: fixed;
    top: 100px;
    right: 14px;
    left: 14px;
    width: auto;
  }
}

@media (max-width: 720px) {
  .app-nav {
    grid-template-rows: auto auto auto;
  }

  .menu-bar {
    grid-column: 1 / -1;
  }

  .document-status {
    grid-column: 1 / -1;
    grid-row: 3;
    justify-content: flex-start;
  }

  .edit-menu-popover,
  .tools-menu-popover {
    position: fixed;
    top: 148px;
    right: 14px;
    left: 14px;
    width: auto;
    max-height: calc(100dvh - 162px);
    grid-template-columns: 1fr;
    overflow: auto;
  }

  .edit-menu-popover .menu-section + .menu-section,
  .tools-menu-popover .menu-section + .menu-section {
    border-top: 1px solid var(--line);
  }

  .submenu-popover {
    position: static;
    margin: 2px 0 4px 28px;
    box-shadow: none;
  }
}