:root {
  color-scheme: dark;
  --sidebar-width: 360px;
  --bg: #121418;
  --panel: #1b2129;
  --panel-strong: #242c36;
  --line: #2a3440;
  --text: #e6edf5;
  --muted: #9aa9bb;
  --accent: #a2e05f;
  --accent-2: #5fd6e0;
  --danger: #ff7c6f;
  --axis-x: #ff4d4d;
  --axis-y: #4dff4d;
  --axis-z: #4d80ff;
  --shadow: rgba(0, 0, 0, 0.35);
  --font-ui: -apple-system, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Menlo", "Consolas", monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 150ms ease;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(95, 214, 224, 0.08), transparent 35%),
    radial-gradient(circle at top right, rgba(162, 224, 95, 0.07), transparent 28%),
    linear-gradient(180deg, #0d1116, var(--bg));
  color: var(--text);
  font-family: var(--font-ui);
}

body {
  min-height: 100vh;
  overflow: hidden;
}

.app {
  display: grid;
  grid-template-columns: minmax(280px, var(--sidebar-width)) 12px minmax(0, 1fr);
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
}

.sidebar {
  background: rgba(18, 20, 24, 0.96);
  padding: 16px;
  height: 100vh;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  backdrop-filter: blur(10px);
  min-width: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

.splitter {
  position: relative;
  cursor: col-resize;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(95, 214, 224, 0.32), rgba(255, 255, 255, 0));
}

.splitter::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
}

.splitter:hover,
.splitter:focus-visible {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0)),
    linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(162, 224, 95, 0.42), rgba(255, 255, 255, 0));
  outline: none;
  transition: background var(--transition);
}

body.is-resizing,
body.is-resizing * {
  cursor: col-resize !important;
  user-select: none !important;
}

.viewer-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 100vh;
  min-width: 0;
  overflow: hidden;
}

.viewer-canvas-area {
  position: relative;
  flex: 1;
  min-height: 0;
}

#gl-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.viewer-canvas-area.bg-dark #gl-canvas {
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.045), transparent 45%),
    linear-gradient(180deg, #151a22, #090b10);
}

.viewer-canvas-area.bg-white #gl-canvas {
  background: transparent;
}

.viewer-canvas-area.bg-white {
  background: #ffffff;
}

.viewer-canvas-area.bg-grid {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%, transparent 75%, #e0e0e0 75%),
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%, transparent 75%, #e0e0e0 75%);
  background-position: 0 0, 10px 10px;
  background-size: 20px 20px;
}

.viewer-canvas-area.bg-grid #gl-canvas {
  background: transparent;
}

.toolbar-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 10px 16px;
  flex-shrink: 0;
}

.view-mode-toolbar {
  display: flex;
  gap: 6px;
}

.bg-mode-toolbar {
  display: flex;
  gap: 4px;
}

.bg-mode-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-top: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(10, 12, 16, 0.8);
  backdrop-filter: blur(14px);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.bg-mode-pill:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(20, 26, 36, 0.9);
}

.bg-mode-pill.is-active {
  border-color: rgba(95, 214, 224, 0.4);
  background: rgba(95, 214, 224, 0.14);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 0 12px rgba(95, 214, 224, 0.1);
}

.bg-mode-pill svg {
  display: block;
}

.view-mode-pill {
  width: auto;
  margin-top: 0;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(10, 12, 16, 0.8);
  backdrop-filter: blur(14px);
  color: var(--muted);
  white-space: nowrap;
  transition: all var(--transition);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.view-mode-pill:hover {
  color: var(--text);
  background: rgba(20, 26, 36, 0.9);
  border-color: rgba(255, 255, 255, 0.16);
}

.view-mode-pill.is-active {
  border-color: rgba(95, 214, 224, 0.4);
  background: rgba(95, 214, 224, 0.14);
  backdrop-filter: blur(14px);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 0 12px rgba(95, 214, 224, 0.1);
}

.viewer-layout {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(170px, 20vw, 260px);
  gap: 14px;
  padding: 16px;
  pointer-events: none;
}

.viewer-layout.is-orbit-only {
  grid-template-columns: minmax(0, 1fr);
}

.viewer-layout.is-orbit-only .viewport-stack {
  display: none;
}

.viewport-stack {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  min-height: 0;
}

.viewport-pane {
  position: relative;
  min-height: 0;
  border: 1px solid rgba(230, 237, 245, 0.12);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    rgba(11, 14, 18, 0.18);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 12px 28px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.viewport-pane-main {
  min-width: 0;
}

.viewport-pane-preview {
  min-height: 0;
}

.viewport-label {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1;
  padding: 4px 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  background: rgba(10, 12, 16, 0.72);
  backdrop-filter: blur(8px);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

#viewport-overlay {
  position: absolute;
  z-index: 2;
  left: 24px;
  bottom: 24px;
  max-width: 420px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  background: rgba(10, 12, 16, 0.82);
  backdrop-filter: blur(14px);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  pointer-events: none;
  box-shadow: 0 16px 40px var(--shadow);
}

.panel {
  margin-bottom: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(36, 44, 54, 0.88), rgba(27, 33, 41, 0.92));
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: border-color var(--transition);
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.panel.is-hidden {
  display: none;
}

.assets-model-picker.is-hidden {
  display: none;
}

.panel-collapsible {
  padding: 0;
}

.panel-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding: 14px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.panel-summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.panel-summary::-webkit-details-marker {
  display: none;
}

.panel-summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid var(--accent);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform var(--transition);
}

.panel-summary h2 {
  margin: 0;
}

.panel-collapsible[open] > .panel-summary::before {
  transform: rotate(90deg);
}

.panel-collapsible > .frame-tree {
  padding: 0 14px 14px;
}

.panel-collapsible-content {
  padding: 0 14px 14px;
}

h1,
h2 {
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  font-size: 17px;
  background: linear-gradient(135deg, var(--text), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

p,
label,
button,
select,
input,
dt,
dd,
div,
span {
  font-size: 13px;
  font-family: var(--font-ui);
}

.muted,
.hint {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

label:not(.file-input):not(.checkbox):not(.flag-row):not(.skin-palette-range):not(.obj-tools-axis) {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

label:not(.file-input):not(.checkbox):not(.flag-row):not(.skin-palette-range):not(.obj-tools-axis) span {
  font-family: var(--font-mono);
  color: var(--accent-2);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  outline: none;
  margin-top: 8px;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--panel);
  box-shadow: 0 0 6px rgba(162, 224, 95, 0.3);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(162, 224, 95, 0.5);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--panel);
  box-shadow: 0 0 6px rgba(162, 224, 95, 0.3);
  cursor: pointer;
}

input[type="range"]:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(162, 224, 95, 0.25);
}

.file-drop {
  position: relative;
  display: flex;
  align-items: center;
  padding: 16px 18px;
  border: 1.5px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition);
}

.file-drop:hover {
  border-color: var(--accent-2);
  background: rgba(95, 214, 224, 0.05);
}

.file-drop-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.file-drop-text {
  display: block;
  flex: 1 1 160px;
  min-width: 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--text);
}

.file-drop-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  margin-left: auto;
  padding: 4px 9px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  font-size: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.file-drop input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

select,
input[type="range"],
button {
  width: 100%;
  margin-top: 6px;
}

select,
button,
input[type="range"] {
  accent-color: var(--accent);
}

select,
button {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(18, 24, 33, 0.8);
  color: var(--text);
  padding: 8px 10px;
  font-family: inherit;
  transition: all var(--transition);
}

select {
  font-family: var(--font-mono);
  font-size: 12px;
}

select:not([multiple]):not([size]),
select:not([multiple])[size="1"] {
  -webkit-appearance: none;
  appearance: none;
  padding-right: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa9bb' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

select[multiple],
select[size]:not([size="1"]) {
  -webkit-appearance: auto;
  appearance: auto;
  padding-right: 10px;
  background-image: none;
}

select:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(95, 214, 224, 0.15);
}

button {
  cursor: pointer;
  font-weight: 500;
  letter-spacing: 0.02em;
  background: linear-gradient(180deg, rgba(30, 38, 50, 0.9), rgba(18, 24, 33, 0.95));
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

button:hover {
  border-color: var(--accent-2);
  background: linear-gradient(180deg, rgba(40, 50, 64, 0.9), rgba(24, 32, 44, 0.95));
  box-shadow: 0 0 12px rgba(95, 214, 224, 0.1);
}

button:active {
  transform: translateY(1px);
  box-shadow: none;
}

button:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(162, 224, 95, 0.2);
}

.control-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.control-row button {
  font-size: 12px;
  padding: 7px 8px;
}

.playback-pose-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 84px;
  gap: 10px;
  align-items: center;
}

.playback-pose-row input[type="range"],
.playback-pose-row input[type="number"] {
  margin-top: 0;
}

.playback-pose-row input[type="number"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(18, 24, 33, 0.8);
  color: var(--text);
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.playback-pose-row input[type="number"]:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(95, 214, 224, 0.15);
}

.status-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  margin-top: 12px;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.15);
  font-size: 12px;
}

.status-grid > div:nth-child(odd) {
  color: var(--muted);
  font-weight: 500;
}

.status-grid > div:nth-child(even) {
  font-family: var(--font-mono);
  font-size: 12px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: background var(--transition);
}

.checkbox:hover {
  background: rgba(0, 0, 0, 0.18);
}

.checkbox input {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

.checkbox span {
  font-size: 12px;
  font-weight: 500;
}

.player-color-controls {
  margin-top: 10px;
}

.player-color-controls.is-hidden {
  display: none;
}

.tablist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
  gap: 4px;
  margin-bottom: 12px;
  padding: 3px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
}

.tab-button {
  margin-top: 0;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: none;
}

.tab-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: transparent;
  box-shadow: none;
}

.tab-button.is-active {
  border-color: rgba(95, 214, 224, 0.4);
  background: rgba(95, 214, 224, 0.12);
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.tab-button:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(162, 224, 95, 0.2);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.property-actions {
  display: grid;
  gap: 8px;
}

.property-actions button {
  margin-top: 0;
}

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

.skin-actions button {
  margin-top: 0;
}

.skin-option {
  margin-top: 0;
}

.skin-palette-tools {
  margin-top: 14px;
  padding: 0;
  overflow: hidden;
}

.skin-palette-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding: 12px;
  transition: background var(--transition);
}

.skin-palette-summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.skin-palette-summary::-webkit-details-marker {
  display: none;
}

.skin-palette-summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid var(--accent);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform var(--transition);
}

.skin-palette-summary h3 {
  margin: 0 !important;
}

.skin-palette-tools[open] > .skin-palette-summary::before {
  transform: rotate(90deg);
}

.skin-palette-content {
  padding: 0 12px 12px;
}

.skin-palette-toolbar {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.skin-palette-scope-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
}

.skin-palette-scope-row label {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.skin-palette-scope-row select {
  margin-top: 0;
}

.skin-palette-layout {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.skin-palette-ranges {
  display: grid;
  grid-template-rows: repeat(16, 16px);
  gap: 0;
  height: 256px;
  align-items: stretch;
}

.skin-palette-range {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  margin: 0;
  height: 16px;
  min-height: 0;
  padding: 0 4px 0 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
}

.skin-palette-range.is-disabled {
  opacity: 0.56;
}

.skin-palette-range.is-unused {
}

.skin-palette-range input {
  width: auto;
  margin: 0;
  justify-self: center;
  accent-color: var(--accent);
}

.skin-palette-range-text {
  display: flex;
  align-items: center;
  min-width: 0;
  white-space: nowrap;
  overflow: visible;
}

.skin-palette-range-title {
  display: block;
  font-size: 11px;
  line-height: 1;
  color: var(--text);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.skin-palette-range-meta {
  display: none;
}

.skin-palette-main {
  min-width: 0;
}

.skin-palette-main canvas {
  display: block;
}

.skin-palette-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.skin-palette-actions button {
  margin-top: 0;
}

.skin-palette-actions button:disabled {
  opacity: 0.55;
}

.skin-palette-notes {
  margin-top: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.skin-palette-note-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background var(--transition), color var(--transition);
}

.skin-palette-note-summary:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.skin-palette-note-summary::-webkit-details-marker {
  display: none;
}

.skin-palette-note-summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid var(--accent-2);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform var(--transition);
}

.skin-palette-notes[open] > .skin-palette-note-summary::before {
  transform: rotate(90deg);
}

.skin-palette-note-content {
  margin: 0;
  padding: 0 12px 12px;
}

.skin-palette-note-content + .skin-palette-note-content {
  padding-top: 0;
}

.obj-tools-section {
  margin-bottom: 12px;
}

.obj-tools-section h3 {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.obj-tools-grid {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 4px 8px;
  align-items: center;
}

.obj-tools-axis {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  margin: 0 !important;
}

label.obj-tools-axis.axis-x { color: var(--axis-x); }
label.obj-tools-axis.axis-y { color: var(--axis-y); }
label.obj-tools-axis.axis-z { color: var(--axis-z); }

.obj-tools-grid input[type="number"] {
  width: 100%;
  margin-top: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(18, 24, 33, 0.8);
  color: var(--text);
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.obj-tools-grid input[type="number"]:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(95, 214, 224, 0.15);
}

.obj-tools-scope-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.obj-tools-scope-row label {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.obj-tools-scope-row select {
  margin-top: 0;
}

.properties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.property-card {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  background: rgba(10, 12, 16, 0.3);
  transition: border-color var(--transition);
}

.property-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.property-card-wide {
  grid-column: 1 / -1;
}

.property-card h3,
.property-subsection h4 {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.property-subgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.property-subsection {
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
}

.property-list {
  margin: 0;
}

.property-list > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  padding: 4px 0;
}

.property-list dt {
  color: var(--muted);
  font-size: 12px;
}

.property-axis-label {
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.property-axis-token.axis-x {
  color: var(--axis-x);
}

.property-axis-token.axis-y {
  color: var(--axis-y);
}

.property-axis-token.axis-z {
  color: var(--axis-z);
}

.property-list dd {
  margin: 0;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 12px;
}

.property-flags-raw {
  margin-bottom: 10px;
}

.property-edit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  gap: 8px;
}

.property-input-row {
  display: grid;
  gap: 6px;
}

.property-input-label {
  color: var(--muted);
}

.property-input-row input {
  width: 100%;
  margin-top: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(18, 24, 33, 0.8);
  color: var(--text);
  padding: 8px 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.property-input-row input:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(95, 214, 224, 0.15);
}

.property-checkbox {
  margin-top: 0;
}

.property-hint {
  margin: 8px 0 0;
}

.flag-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px;
}

.flag-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
  transition: background var(--transition);
}

.flag-row:hover {
  background: rgba(255, 255, 255, 0.04);
}

.flag-checkbox {
  width: auto;
  margin: 0;
}

.flag-label {
  color: var(--text);
}

.frame-tree {
  display: grid;
  gap: 4px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.frame-tree::-webkit-scrollbar {
  width: 5px;
}

.frame-tree::-webkit-scrollbar-track {
  background: transparent;
}

.frame-tree::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 3px;
}

.frame-group {
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  background: rgba(8, 10, 14, 0.2);
  overflow: hidden;
}

.frame-group summary {
  cursor: pointer;
  list-style: none;
  padding: 7px 10px;
  color: var(--text);
  font-size: 12px;
  transition: background var(--transition);
}

.frame-group summary:hover {
  background: rgba(255, 255, 255, 0.04);
}

.frame-group summary::-webkit-details-marker {
  display: none;
}

.frame-group summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid var(--accent);
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
  margin-right: 8px;
  transition: transform var(--transition);
  vertical-align: middle;
}

.frame-group[open] summary::before {
  transform: rotate(90deg);
}

.frame-group summary.is-selected,
.frame-leaf.is-selected,
.frame-pose.is-selected {
  background: rgba(95, 214, 224, 0.12);
  color: #f2fbff;
}

.frame-group-label,
.frame-leaf,
.frame-pose {
  display: block;
  width: 100%;
  margin-top: 0;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.frame-group-label {
  font-family: var(--font-mono);
}

.frame-group-count {
  color: var(--muted);
  font-size: 11px;
  opacity: 0.7;
}

.frame-pose-list {
  display: grid;
  gap: 2px;
  padding: 0 6px 6px 28px;
}

.frame-pose {
  padding: 5px 8px;
  color: var(--muted);
  font-size: 12px;
  font-family: var(--font-mono);
  border-radius: 3px;
  transition: background var(--transition);
}

.frame-pose:hover {
  background: rgba(255, 255, 255, 0.04);
}

.frame-leaf {
  padding: 7px 10px;
  font-size: 12px;
  font-family: var(--font-mono);
  border-radius: 3px;
  transition: background var(--transition);
}

.frame-leaf:hover {
  background: rgba(255, 255, 255, 0.04);
}

#skin-preview {
  width: 100%;
  height: auto;
  max-height: 320px;
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(45deg, #11161d 25%, transparent 25%, transparent 75%, #11161d 75%, #11161d),
    linear-gradient(45deg, #11161d 25%, transparent 25%, transparent 75%, #11161d 75%, #11161d);
  background-position: 0 0, 8px 8px;
  background-size: 16px 16px;
  image-rendering: pixelated;
  object-fit: contain;
}

#skin-palette-canvas {
  width: 100%;
  max-width: 256px;
  height: auto;
  outline: 1px solid var(--line);
  background: #0c1016;
  image-rendering: pixelated;
}

.info-list {
  margin: 0;
}

.info-list > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  padding: 4px 0;
}

.info-list dt {
  color: var(--muted);
  font-size: 12px;
}

.info-list dd {
  margin: 0;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 1100px) {
  body {
    overflow: auto;
  }

  .app {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }

  .sidebar {
    height: auto;
    min-height: unset;
    border-bottom: 1px solid var(--line);
    overflow-y: visible;
  }

  .splitter {
    display: none;
  }

  .viewer-shell {
    height: auto;
    min-height: 70vh;
  }

  .viewer-canvas-area {
    min-height: 60vh;
  }

  #gl-canvas {
    height: 100%;
  }

  .viewer-layout {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(340px, 70vh) minmax(160px, auto);
  }

  .viewer-layout.is-orbit-only {
    grid-template-rows: minmax(340px, 70vh);
  }

  .viewport-stack {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }

  .toolbar-row {
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 10px;
  }

  .view-mode-pill {
    white-space: normal;
    font-size: 11px;
  }

  #viewport-overlay {
    left: 16px;
    right: 16px;
    bottom: 16px;
    max-width: min(420px, calc(100% - 32px));
  }

  .panel {
    border-radius: var(--radius-sm);
  }

  .file-drop {
    padding: 14px 16px;
  }

  .file-drop-copy {
    align-items: flex-start;
  }

  .skin-palette-layout {
    grid-template-columns: 1fr;
  }

  .skin-palette-ranges {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: none;
    height: auto;
    gap: 4px;
  }
}