/* ==========================================================================
   App2 — dark studio theme
   ========================================================================== */

:root {
  --bg: #121318;
  --bg-2: #181a21;
  --bg-3: #1f222b;
  --bg-4: #282c37;
  --line: #2c303b;
  --line-2: #383d4a;
  --text: #e7e9ef;
  --text-2: #a4a9b8;
  --text-3: #6f7587;
  --accent: #7c5cff;
  --accent-2: #9d85ff;
  --accent-soft: rgba(124, 92, 255, 0.18);
  --ok: #3ccf91;
  --warn: #f5b84a;
  --err: #ff5f6d;
  --radius: 8px;
  --topbar-h: 48px;
  --toolbar-w: 56px;
  --panel-w: 312px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.4 system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

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

button {
  cursor: pointer;
}

kbd {
  display: inline-block;
  min-width: 18px;
  padding: 1px 5px;
  border: 1px solid var(--line-2);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--bg-3);
  color: var(--text-2);
  font: 11px/1.4 ui-monospace, 'SFMono-Regular', Consolas, monospace;
  text-align: center;
}

.icon {
  display: block;
  flex: none;
}

/* ---------- layout ---------- */

#app {
  display: grid;
  grid-template-rows: var(--topbar-h) minmax(0, 1fr);
  grid-template-columns: var(--toolbar-w) minmax(0, 1fr) var(--panel-w);
  grid-template-areas:
    'top top top'
    'tools stage panel';
  height: 100vh;
  height: 100dvh;
  opacity: 0;
  transition: opacity 0.2s;
}

#app.ready {
  opacity: 1;
}

#app.panel-hidden {
  grid-template-columns: var(--toolbar-w) minmax(0, 1fr) 0;
}

#app.panel-hidden .panel {
  display: none;
}

/* ---------- top bar ---------- */

.topbar {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  min-width: 0;
  overflow: visible;
  white-space: nowrap;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-right: 4px;
}

.brand .logo {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, #7c5cff, #ff5f9e);
  color: #fff;
}

.top-group {
  display: flex;
  gap: 2px;
  padding-left: 6px;
  margin-left: 2px;
  border-left: 1px solid var(--line);
}

.spacer {
  flex: 1;
}

.doc-name {
  width: 180px;
  min-width: 48px;
  flex: 0 1 auto;
  padding: 5px 8px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
}

.doc-name:hover,
.doc-name:focus {
  border-color: var(--line-2);
  background: var(--bg-3);
  outline: none;
}

.save-status {
  color: var(--text-3);
  font-size: 12px;
  white-space: nowrap;
}

.menu-wrap {
  position: relative;
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-3);
}

.menu-btn:hover {
  background: var(--bg-4);
}

.menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 290px;
  padding: 6px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: var(--bg-2);
  box-shadow: var(--shadow);
  z-index: 50;
}

.menu-wrap.open .menu {
  display: block;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  text-align: left;
}

.menu-item span {
  flex: 1;
}

.menu-item:hover {
  background: var(--accent-soft);
}

.menu-sep {
  height: 1px;
  margin: 5px 4px;
  background: var(--line);
}

/* ---------- buttons ---------- */

.icon-btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text-2);
}

.icon-btn:hover:not(:disabled) {
  background: var(--bg-4);
  color: var(--text);
}

.icon-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.icon-btn.small {
  width: 28px;
  height: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line-2);
  border-radius: 7px;
  background: var(--bg-3);
  color: var(--text);
}

.btn:hover:not(:disabled) {
  background: var(--bg-4);
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn.primary {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover:not(:disabled) {
  background: var(--accent-2);
}

.btn.small {
  padding: 5px 9px;
  font-size: 12px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

/* tooltip (positioned by js/ui/dom.js) */
.tooltip {
  position: fixed;
  left: 0;
  top: 0;
  padding: 4px 8px;
  border-radius: 6px;
  background: #000;
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  z-index: 300;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity 0.12s;
}

.tooltip.show {
  opacity: 1;
}

/* ---------- tool bar ---------- */

.toolbar {
  grid-area: tools;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  background: var(--bg-2);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  overflow-x: visible;
  scrollbar-width: none;
  z-index: 10;
}

.toolbar::-webkit-scrollbar {
  display: none;
}

.tool-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.tool-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--text-2);
  flex: none;
}

.tool-btn:hover {
  background: var(--bg-4);
  color: var(--text);
}

.tool-btn.active {
  background: var(--accent-soft);
  border-color: rgba(124, 92, 255, 0.55);
  color: #fff;
}

.tool-sep {
  width: 26px;
  height: 1px;
  margin: 3px 0;
  background: var(--line-2);
  flex: none;
}

.mini-swatches {
  position: relative;
  width: 40px;
  height: 40px;
  margin-top: auto;
  flex: none;
}

.mini-swatch {
  position: absolute;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 2px solid var(--bg-2);
  border-radius: 6px;
  box-shadow: 0 0 0 1px var(--line-2);
}

.mini-swatch.primary {
  left: 0;
  top: 0;
  z-index: 1;
}

.mini-swatch.secondary {
  right: 0;
  bottom: 0;
}

/* ---------- stage ---------- */

.stage {
  grid-area: stage;
  position: relative;
  overflow: hidden;
  background: #0d0e12;
  touch-action: none;
}

#view {
  position: absolute;
  inset: 0;
  display: block;
  touch-action: none;
  outline: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.drop-hint {
  display: none;
  position: absolute;
  inset: 16px;
  place-items: center;
  border: 2px dashed var(--accent);
  border-radius: 14px;
  background: rgba(124, 92, 255, 0.12);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  pointer-events: none;
}

.stage.dropping .drop-hint {
  display: grid;
}

.zoom-bar {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: rgba(24, 26, 33, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.zoom-label {
  min-width: 56px;
  padding: 6px 4px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.zoom-label:hover {
  background: var(--bg-4);
}

/* ---------- right panel ---------- */

.panel {
  grid-area: panel;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-2);
  border-left: 1px solid var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
  z-index: 10;
}

.panel-scrim {
  display: none;
}

.panel-section {
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  text-align: left;
}

.section-head span {
  flex: 1;
}

.section-head .icon:last-child {
  transition: transform 0.15s;
  color: var(--text-3);
}

.panel-section.collapsed .section-head .icon:last-child {
  transform: rotate(-90deg);
}

.panel-section.collapsed .section-body {
  display: none;
}

.section-body {
  padding: 0 12px 12px;
}

.subhead {
  margin: 10px 0 6px;
  color: var(--text-3);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hint {
  margin: 0 0 8px;
  color: var(--text-2);
  font-size: 12px;
}

/* ---------- controls ---------- */

.controls {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.ctl {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ctl-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.ctl-label {
  color: var(--text-2);
  font-size: 12px;
}

.ctl-value {
  color: var(--text);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.ctl-inline {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.ctl-inline .ctl {
  flex: 1;
}

.ctl-divider {
  height: 1px;
  margin: 2px 0;
  background: var(--line);
}

input[type='range'] {
  --fill: 50%;
  width: 100%;
  height: 22px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  touch-action: pan-y;
}

input[type='range']::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--bg-4) var(--fill));
}

input[type='range']::-moz-range-track {
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--bg-4) var(--fill));
}

input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -5.5px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

input[type='range']::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--accent);
}

select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  background: var(--bg-3);
}

select:focus,
input[type='text']:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

input[type='color'] {
  width: 34px;
  height: 28px;
  padding: 2px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  background: var(--bg-3);
  cursor: pointer;
}

.ctl-toggle {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.ctl-toggle input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.switch {
  position: relative;
  width: 32px;
  height: 18px;
  border-radius: 9px;
  background: var(--bg-4);
  flex: none;
  transition: background 0.15s;
}

.switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #cfd3de;
  transition: transform 0.15s;
}

.ctl-toggle input:checked + .switch {
  background: var(--accent);
}

.ctl-toggle input:checked + .switch::after {
  transform: translateX(14px);
  background: #fff;
}

.ctl-toggle input:focus-visible + .switch {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

/* ---------- color panel ---------- */

.sv-wrap {
  position: relative;
  height: 150px;
  border-radius: 8px;
  overflow: hidden;
  cursor: crosshair;
  touch-action: none;
}

.sv-canvas,
.hue-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.sv-cursor {
  position: absolute;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}

.hue-wrap {
  position: relative;
  height: 14px;
  margin-top: 10px;
  border-radius: 7px;
  overflow: visible;
  cursor: pointer;
  touch-action: none;
}

.hue-canvas {
  border-radius: 7px;
}

.hue-cursor {
  position: absolute;
  top: -2px;
  width: 8px;
  height: 18px;
  margin-left: -4px;
  border: 2px solid #fff;
  border-radius: 4px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}

.swatch-pair {
  position: relative;
  width: 46px;
  height: 36px;
  flex: none;
}

.swatch-big {
  position: absolute;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 2px solid var(--bg-2);
  border-radius: 7px;
  box-shadow: 0 0 0 1px var(--line-2);
}

.swatch-big.primary {
  left: 0;
  top: 0;
  z-index: 1;
}

.swatch-big.secondary {
  right: 0;
  bottom: 0;
}

.swatch-big.editing {
  box-shadow: 0 0 0 2px var(--accent-2);
  z-index: 2;
}

.hex-input {
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  background: var(--bg-3);
  font-family: ui-monospace, Consolas, monospace;
  text-transform: lowercase;
}

.recent-colors {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 4px;
}

.swatch {
  aspect-ratio: 1;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
}

.swatch:hover {
  transform: scale(1.12);
}

/* ---------- tool options ---------- */

.tool-head {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.tool-head-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-2);
  flex: none;
}

.tool-head-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.tool-head-desc {
  color: var(--text-2);
  font-size: 12px;
}

.tool-extra {
  margin-top: 6px;
}

.grad-editor {
  position: relative;
  padding-bottom: 18px;
}

.grad-bar {
  height: 26px;
  border-radius: 6px;
  border: 1px solid var(--line-2);
  cursor: copy;
}

.grad-stops {
  position: absolute;
  left: 0;
  right: 0;
  top: 26px;
  height: 18px;
}

.grad-stop {
  position: absolute;
  top: 2px;
  width: 14px;
  height: 14px;
  margin-left: -7px;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 3px;
  box-shadow: 0 0 0 1px #000;
  touch-action: none;
  cursor: ew-resize;
}

.grad-stop.selected {
  box-shadow: 0 0 0 2px var(--accent-2);
  transform: scale(1.15);
}

.grad-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.grad-presets {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
}

.grad-preset {
  height: 20px;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 5px;
}

/* ---------- layers ---------- */

.layer-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  max-height: 280px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 6px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}

.layer-item:last-child {
  border-bottom: 0;
}

.layer-item:hover {
  background: var(--bg-3);
}

.layer-item.active {
  background: var(--accent-soft);
}

.layer-item.hidden-layer .layer-thumb,
.layer-item.hidden-layer .layer-text {
  opacity: 0.45;
}

.layer-item.dragging {
  opacity: 0.5;
}

.layer-item.drop-target {
  box-shadow: inset 0 2px 0 var(--accent);
}

.layer-thumb {
  width: 48px;
  height: 36px;
  border-radius: 4px;
  border: 1px solid var(--line-2);
  background: repeating-conic-gradient(#3a3f4c 0% 25%, #2a2e38 0% 50%) 50% / 10px 10px;
  flex: none;
}

.layer-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.layer-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-meta {
  color: var(--text-3);
  font-size: 11px;
}

.layer-rename {
  width: 100%;
  padding: 3px 6px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--bg);
}

.layer-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
}

/* ---------- creative ---------- */

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  padding: 3px;
  border-radius: 8px;
  background: var(--bg);
  margin-bottom: 10px;
}

.tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 2px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2);
  font-size: 11px;
}

.tab.active {
  background: var(--bg-4);
  color: #fff;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}

.chip {
  padding: 4px 9px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font-size: 12px;
}

.chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: #fff;
}

.palette-swatches {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
}

.palette-swatch {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0 0 4px;
  border: 0;
  font: 10px ui-monospace, Consolas, monospace;
}

.palette-swatch span {
  opacity: 0;
  transition: opacity 0.15s;
}

.palette-swatch:hover span {
  opacity: 1;
}

.texture-wrap {
  display: grid;
  place-items: center;
  margin-top: 10px;
}

.texture-preview {
  width: 160px;
  height: 160px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  image-rendering: auto;
}

.sticker-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}

.sticker-grid.compact {
  grid-template-columns: repeat(7, 1fr);
}

.sticker-btn,
.pattern-btn {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg-3);
}

.sticker-btn canvas,
.pattern-btn canvas {
  width: 100%;
  height: 100%;
}

.sticker-btn:hover,
.pattern-btn:hover {
  border-color: var(--line-2);
  background: var(--bg-4);
}

.sticker-btn.selected,
.pattern-btn.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
}

.pattern-btn {
  padding: 0;
  overflow: hidden;
}

/* ---------- toasts ---------- */

.toasts {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 200;
  pointer-events: none;
}

.toast {
  max-width: min(520px, 90vw);
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: rgba(24, 26, 33, 0.97);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
}

.toast.show {
  opacity: 1;
  transform: none;
}

.toast-success {
  border-left-color: var(--ok);
}

.toast-warn {
  border-left-color: var(--warn);
}

.toast-error {
  border-left-color: var(--err);
}

/* ---------- modal ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.55);
  z-index: 150;
}

.modal {
  width: min(760px, 100%);
  max-height: 90vh;
  overflow: auto;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--bg-2);
  box-shadow: var(--shadow);
}

.modal-head {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
}

.modal-head h2 {
  margin: 0;
  font-size: 16px;
}

.modal-body {
  padding: 14px 18px 18px;
}

.help-cols {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 18px;
}

.help h3 {
  margin: 8px 0;
  font-size: 13px;
  color: var(--text-2);
}

.help table {
  width: 100%;
  border-collapse: collapse;
}

.help td {
  padding: 3px 4px;
  vertical-align: top;
}

.help td:first-child {
  white-space: nowrap;
  width: 1%;
  padding-right: 10px;
}

/* ---------- responsive: tablets & phones ---------- */

.panel-toggle {
  display: grid;
}

@media (max-width: 860px) {
  :root {
    --toolbar-h: 58px;
  }

  #app,
  #app.panel-hidden {
    grid-template-rows: var(--topbar-h) minmax(0, 1fr) var(--toolbar-h);
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      'top'
      'stage'
      'tools';
  }

  .toolbar {
    flex-direction: row;
    padding: 0 8px;
    border-right: 0;
    border-top: 1px solid var(--line);
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .tool-list {
    flex-direction: row;
  }

  .tool-btn {
    width: 44px;
    height: 44px;
  }

  .tool-sep {
    width: 1px;
    height: 26px;
    margin: 0 4px;
  }

  .mini-swatches {
    margin: 0 0 0 auto;
  }

  .panel {
    display: block;
    position: fixed;
    top: var(--topbar-h);
    right: 0;
    bottom: 0;
    width: min(340px, 92vw);
    transform: translateX(105%);
    transition: transform 0.22s ease;
    box-shadow: var(--shadow);
    z-index: 40;
  }

  #app.panel-hidden .panel {
    display: block;
  }

  #app.panel-open .panel {
    transform: none;
  }

  #app.panel-open .panel-scrim {
    display: block;
    position: fixed;
    inset: var(--topbar-h) 0 0 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 30;
  }

  .doc-name {
    width: 110px;
  }

  .hide-sm,
  .save-status,
  .brand-name {
    display: none;
  }

  .zoom-bar {
    right: 8px;
    bottom: 8px;
  }

  .help-cols {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .menu-btn span {
    display: none;
  }
  .doc-name {
    width: 80px;
  }
  .menu {
    position: fixed;
    left: 8px;
    right: 8px;
    top: calc(var(--topbar-h) + 4px);
    min-width: 0;
  }
}

@media (pointer: coarse) {
  .icon-btn {
    width: 40px;
    height: 40px;
  }
  input[type='range']::-webkit-slider-thumb {
    width: 22px;
    height: 22px;
    margin-top: -8.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* Optional background music control (top bar) */
.music-control { display: flex; align-items: center; gap: 6px; }
.music-control .music-toggle { background: transparent; border: 0; font-size: 18px; line-height: 1; padding: 6px; border-radius: 8px; cursor: pointer; }
.music-control .music-toggle:hover { background: rgba(255,255,255,.08); }
.music-control .music-volume { width: 80px; accent-color: #9b7bff; }
@media (max-width: 720px) { .music-control .music-volume { display: none; } }