:root {
  --bg: #1e1e1e;
  --sidebar: #252526;
  --border: #333333;
  --active: #37373d;
  --hover: #2a2d2e;
  --blue: #0e639c;
  --blue-hover: #1177bb;
  --text: #cccccc;
  --text-muted: #858585;
  --input-bg: #3c3c3c;
  --radius: 3px;
  --font-ui: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  overflow: hidden;
  font-size: 13px;
  display: flex;
  flex-direction: column;
}

/* Layout */
.app {
  display: flex;
  flex: 1;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  background: var(--sidebar);
  border-right: none; /* handled by resizer */
  display: flex;
  flex-direction: column;
  width: 320px;
  flex-shrink: 0;
  min-width: 200px;
  max-width: 600px;
}

.sidebar-header {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: 500;
  color: #fff;
}

.tools-nav {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tool-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 10px 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.1s;
}

.tool-btn:hover { color: var(--text); }
.tool-btn.active {
  color: #fff;
  border-bottom-color: var(--blue);
}

.sidebar-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.panel-view {
  display: none;
  height: 100%;
  overflow-y: auto;
  padding: 12px;
}
.panel-view.active { display: block; }

/* Presets view - special layout with fixed slots */
#view-presets.panel-view {
  display: none;
  height: 100%;
  overflow: hidden;
  padding: 0;
}
#view-presets.panel-view.active {
  display: flex;
  flex-direction: column;
}
#view-presets .preset-slots-panel {
  flex-shrink: 0;
  margin: 12px 12px 0 12px;
}
#view-presets .preset-search-bar {
  flex-shrink: 0;
  padding: 12px 12px 0 12px;
}
#view-presets .preset-filters {
  flex-shrink: 0;
  padding: 0 12px;
}
#view-presets #preset-info {
  flex-shrink: 0;
  padding: 0 12px;
}
#view-presets .preset-grid {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px 12px 12px;
  margin: 0;
}

/* Buttons & Inputs */
button {
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
}
.btn-primary:hover { background: var(--blue-hover); }

.btn-sm {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 11px;
}
.btn-sm:hover { background: var(--active); }

.btn-xs {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 2px 6px;
  font-size: 10px;
}
.btn-xs:hover { border-color: var(--text-muted); }

input[type="text"], input[type="number"], textarea, select {
  background: var(--input-bg);
  border: 1px solid transparent;
  color: #fff;
  border-radius: var(--radius);
  padding: 6px;
  font-family: inherit;
  width: 100%;
  outline: none;
  font-size: 12px;
}
input:focus, textarea:focus, select:focus { border-color: var(--blue); }

/* Ensure Native Spinners are visible but styled decently */
/* We rely on browser defaults but ensuring color-scheme helps */
:root {
  color-scheme: dark; /* Helps scrollbars and input controls */
}

textarea { resize: vertical; font-family: var(--font-mono); line-height: 1.4; }

input[type="color"] {
  width: 100%;
  height: 28px;
  background: var(--input-bg);
  border: none;
  padding: 2px;
  cursor: pointer;
}

/* Sidebar Resizer */
.sidebar-resizer {
  width: 4px;
  cursor: col-resize;
  background: var(--border);
  height: 100%;
  flex-shrink: 0;
  transition: background 0.2s;
  z-index: 10;
}
.sidebar-resizer:hover, .sidebar-resizer.resizing {
  background: var(--blue);
}

/* Layers List */
.layer-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.layer-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.layer-item {
  display: flex;
  align-items: center;
  padding: 8px;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius);
  color: var(--text);
  user-select: none;
  border: 1px solid transparent;
}
.layer-item:hover { background: var(--hover); }
.layer-item.selected {
  background: var(--active);
  border-color: var(--blue);
  color: #fff;
}
.layer-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.layer-item .del { opacity: 0; font-size: 14px; padding: 0 4px; }
.layer-item:hover .del { opacity: 0.6; }
.layer-item .del:hover { opacity: 1; color: #ff5555; }

.layer-item.dragging {
  opacity: 0.5;
  background: var(--active);
}
.layer-item.drag-over-top {
  border-top: 2px solid var(--blue);
}
.layer-item.drag-over-bottom {
  border-bottom: 2px solid var(--blue);
}
.layer-item.drag-over-middle {
  border: 2px solid var(--blue);
  background: rgba(14, 99, 156, 0.2);
}

.layer-tree-node {
    display: flex;
    flex-direction: column;
}
.layer-children {
    padding-left: 20px;
}
.layer-group-header {
    font-weight: bold;
    color: #fff;
}

/* Workspace */
.workspace {
  background: #0a0a0a;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.viewport {
  width: 100%;
  flex: 1;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0d0d0d;
}

#stage-scaler {
  transform-origin: center center;
  box-shadow: 0 0 60px rgba(0,0,0,0.8);
}

.stage {
  width: 1080px;
  height: 1920px;
  background: #111827;
  position: relative;
  overflow: hidden;
  user-select: none; /* prevent native selection during drag */
}

/* Stage Elements */
.el {
  position: absolute;
  cursor: grab;
  user-select: none;
  box-sizing: border-box;
  transform-origin: center center;
}
.el:active { cursor: grabbing; }
.el.selected {
  outline: 2px solid var(--blue);
  z-index: 1000 !important;
}

/* Resize Handles - Corners for Scale */
.resize-handle {
  width: 20px;
  height: 20px;
  background: #fff;
  border: 2px solid var(--blue);
  position: absolute;
  z-index: 2000;
  border-radius: 50%;
  pointer-events: auto;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
  transform: scale(calc(1 / var(--stage-zoom, 0.35)));
  touch-action: none;
}
.rh-nw { top: -10px; left: -10px; cursor: nw-resize; }
.rh-ne { top: -10px; right: -10px; cursor: ne-resize; }
.rh-sw { bottom: -10px; left: -10px; cursor: sw-resize; }
.rh-se { bottom: -10px; right: -10px; cursor: se-resize; }

/* Rotation Handle - Above element */
.rotate-handle {
  width: 22px;
  height: 22px;
  background: #ff6b6b;
  border: 2px solid #fff;
  position: absolute;
  z-index: 2001;
  border-radius: 50%;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5);
  top: -50px;
  left: 50%;
  margin-left: -11px;
  cursor: grab;
  transform: scale(calc(1 / var(--stage-zoom, 0.35)));
  touch-action: none;
}
.rotate-handle:hover { background: #ff4757; }
.rotate-handle:active { background: #ff4757; cursor: grabbing; }
.rotate-handle::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 25px;
  background: var(--blue);
  left: 50%;
  margin-left: -1px;
  bottom: -27px;
}

.el-text {
  /* let it size by content */
  width: max-content;
  max-width: 100%;
  /* Default styling reset */
  color: #fff;
  font-size: 64px;
}

.el-text-content {
   /* Markdown content styles */
   display: block;
}
.el-text-content h1, .el-text-content h2, .el-text-content h3, .el-text-content p { margin: 0; }
.el-text-content h1 {
  font-family: var(--h1-font, inherit);
  color: var(--h1-color, inherit);
  font-size: var(--h1-size, inherit);
  font-weight: var(--h1-weight, inherit);
  line-height: 1.1;
  margin-bottom: 0.3em;
}
.el-text-content h2 {
  font-family: var(--h2-font, inherit);
  color: var(--h2-color, inherit);
  font-size: var(--h2-size, 0.7em);
  font-weight: var(--h2-weight, inherit);
  line-height: 1.2;
  margin-bottom: 0.25em;
}
.el-text-content h3 {
  font-family: var(--h3-font, inherit);
  color: var(--h3-color, inherit);
  font-size: var(--h3-size, 0.6em);
  font-weight: var(--h3-weight, inherit);
  line-height: 1.3;
  margin-bottom: 0.2em;
}
.el-text-content p {
  margin-top: 0.5em;
}
.el-text-content p:first-child {
  margin-top: 0;
}
.el-text-content table { border-collapse: collapse; width: 100%; }
.el-text-content th, .el-text-content td { border: 1px solid currentColor; padding: 4px; }
.el-text-content ul, .el-text-content ol { padding-left: 1.2em; margin: 0; }

/* Animation wrapper - used to separate animation from rotation transform */
.anim-wrapper {
  position: relative;
  display: block;
}

.el-image {
  overflow: hidden;
}
.el-image img {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.el-video {
  overflow: hidden;
}
.el-video video {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.el-edit-area {
  width: 100%;
  height: 100%;
  min-width: 200px;
  min-height: 100px;
  background: rgba(0,0,0,0.9);
  color: #fff;
  border: 2px solid var(--blue);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  resize: both;
  overflow: auto;
  pointer-events: auto !important;
  z-index: 3000;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.el.editing {
  z-index: 2500 !important;
}

/* React-like Properties Form */
.prop-group { margin-bottom: 16px; }
.prop-group label { display: block; margin-bottom: 6px; font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-items: center; }
.zoom-controls { position: absolute; bottom: 20px; right: 20px; background: #252526; padding: 4px; border-radius: 4px; display: flex; align-items: center; gap: 8px; font-size: 12px; }
.zoom-controls button { width: 24px; height: 24px; background: #3c3c3c; color: #fff; border:none; border-radius: 2px; }
.zoom-controls button:hover { background: #505050; }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--sidebar); }
::-webkit-scrollbar-thumb { background: #424242; border-radius: 5px; border: 2px solid var(--sidebar); }
::-webkit-scrollbar-thumb:hover { background: #4f4f4f; }
/* Export Dialog */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}
.dialog-box {
  background: var(--sidebar);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  min-width: 300px;
  text-align: center;
}
.dialog-box h3 {
  margin: 0 0 16px 0;
  color: #fff;
}
.dialog-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.export-option {
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  text-align: left;
}
.export-option:hover {
  background: var(--active);
  border-color: var(--blue);
}
.export-option.instagram-btn {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  border: none;
  font-weight: 600;
  text-align: center;
}
.export-option.instagram-btn:hover {
  opacity: 0.9;
}

/* Pickr Color Picker Overrides */
.pickr {
  display: inline-block;
}
.pickr .pcr-button {
  width: 100%;
  height: 32px;
  border-radius: var(--radius);
}
.color-picker-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.color-picker-row .pickr {
  flex: 1;
}

/* Layer Rename Input */
.layer-rename-input {
  background: var(--input-bg);
  border: 1px solid var(--blue);
  color: #fff;
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 2px;
  width: 100%;
}

/* Emoji Picker Styles */
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  padding: 8px;
  background: var(--sidebar);
  border: 1px solid var(--border);
  border-radius: 4px;
  position: absolute;
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
}
.emoji-btn {
  padding: 4px;
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  border-radius: 4px;
}
.emoji-btn:hover {
  background: var(--active);
}

/* Snap Guides (Photoshop-style) */
.guide {
  position: absolute;
  pointer-events: none;
  z-index: 9999;
  display: none;
}
.guide-horizontal {
  left: 0;
  right: 0;
  height: 1px;
  background: var(--blue);
  box-shadow: 0 0 4px var(--blue);
}
.guide-vertical {
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--blue);
  box-shadow: 0 0 4px var(--blue);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-icon {
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.btn-icon:hover:not(:disabled) {
  background: var(--active);
  border-color: var(--blue);
}
.btn-icon:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Input with unit (degrees, etc) */
.input-unit {
  display: inline-flex;
  align-items: center;
  background: var(--input-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}
.input-unit input {
  border: none;
  background: transparent;
  width: 45px;
  padding: 4px 2px 4px 6px;
  text-align: right;
  color: var(--text);
}
.input-unit input:focus {
  outline: none;
}
.input-unit .unit {
  padding: 4px 8px 4px 2px;
  color: var(--text-muted);
  font-size: 12px;
  background: var(--active);
}

/* Preset Slots Panel - In Layers view for selected element */
.preset-slots-panel {
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.slots-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.slot-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.slot-row:last-child {
  margin-bottom: 0;
}
.slot-label {
  width: 60px;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: capitalize;
  flex-shrink: 0;
}
.slot-box {
  flex: 1;
  height: 32px;
  background: var(--input-bg);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  overflow: hidden;
  position: relative;
}
.slot-box:hover {
  border-color: var(--blue);
  background: rgba(14, 99, 156, 0.1);
}
.slot-box:active {
  transform: scale(0.98);
}
.slot-box.slot-empty::before {
  content: '+ Drop preset';
  font-size: 11px;
}
.slot-box.slot-filled {
  border-style: solid;
  border-color: var(--blue);
  background: var(--active);
  padding: 0 8px;
  justify-content: space-between;
  animation: slotFill 0.3s ease;
}
@keyframes slotFill {
  0% { transform: scale(0.95); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}
.slot-box.slot-filled .slot-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-size: 11px;
}
.slot-box.slot-filled .slot-clear {
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  margin-left: 4px;
}
.slot-box.slot-filled .slot-clear:hover {
  color: #ff5555;
}
.slot-box.drag-over {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.2);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.3);
}
.no-element-selected {
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
  padding: 20px;
  font-style: italic;
}

/* Preset Grid */
.preset-search-bar {
  margin-bottom: 10px;
}
.preset-search-bar input {
  width: 100%;
  padding: 8px 12px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  box-sizing: border-box;
}
.preset-search-bar input:focus {
  outline: none;
  border-color: var(--blue);
}
.preset-filters {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.preset-filter {
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 5px 10px;
  border-radius: 16px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s;
}
.preset-filter:hover {
  color: var(--text);
  border-color: var(--blue);
}
.preset-filter.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  /* No scroll here - sidebar-content handles scrolling */
}
.preset-item {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 6px 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
  min-height: 65px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.preset-item:hover {
  border-color: var(--blue);
  background: var(--active);
}
.preset-item:active {
  transform: scale(0.95);
  border-color: var(--blue);
  background: var(--blue);
}
.preset-item .preview {
  font-size: 12px;
  margin-bottom: 4px;
  max-height: 32px;
  overflow: hidden;
}
.anim-preset .preview {
  font-size: 20px;
  max-height: 28px;
}
.preset-item .name {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.preset-badge {
  position: absolute;
  top: 3px;
  right: 3px;
  font-size: 8px;
  padding: 2px 4px;
  border-radius: 3px;
  background: var(--border);
  color: var(--text-muted);
}
.preset-badge.text {
  background: #3b5998;
  color: #fff;
}
.preset-badge.paragraph {
  background: #6b46c1;
  color: #fff;
}
.preset-badge.image {
  background: #2d7d46;
  color: #fff;
}
.preset-badge.anim {
  background: #c53030;
  color: #fff;
}

/* Alignment Buttons */
.align-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.align-btn {
  width: 32px;
  height: 28px;
  padding: 0;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.align-btn:hover {
  background: var(--active);
  border-color: var(--blue);
}

/* Emoji Picker in Text Editor */
.emoji-picker-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 8px;
  max-height: 80px;
  overflow-y: auto;
  padding: 8px;
  background: var(--input-bg);
  border-radius: var(--radius);
}
.emoji-picker-inline button {
  width: 28px;
  height: 28px;
  font-size: 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}
.emoji-picker-inline button:hover {
  background: var(--active);
}

/* Gradient Editor */
.gradient-editor {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  margin-top: 8px;
}
.gradient-preview {
  height: 40px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}
.gradient-stops {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.gradient-stop {
  display: flex;
  align-items: center;
  gap: 4px;
}
.gradient-stop input[type="color"] {
  width: 30px;
  height: 24px;
}
.gradient-stop input[type="number"] {
  width: 50px;
}

/* CSS Animation Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}
@keyframes slideInLeft {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideInUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes slideInDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes zoomIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@keyframes zoomOut {
  from { transform: scale(1.5); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@keyframes popIn {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes bounceIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.15); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes spinIn {
  from { transform: rotate(-360deg) scale(0); opacity: 0; }
  to { transform: rotate(0) scale(1); opacity: 1; }
}
@keyframes flipIn {
  from { transform: rotateY(90deg); opacity: 0; }
  to { transform: rotateY(0); opacity: 1; }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}
@keyframes wobble {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-3deg); }
  75% { transform: rotate(3deg); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.03); opacity: 1; }
}
@keyframes swing {
  0%, 100% { transform: rotate(0deg); transform-origin: top center; }
  25% { transform: rotate(8deg); }
  75% { transform: rotate(-8deg); }
}
@keyframes rubberBand {
  0% { transform: scale(1, 1); }
  30% { transform: scale(1.25, 0.75); }
  40% { transform: scale(0.75, 1.25); }
  50% { transform: scale(1.15, 0.85); }
  65% { transform: scale(0.95, 1.05); }
  75% { transform: scale(1.05, 0.95); }
  100% { transform: scale(1, 1); }
}
@keyframes jello {
  0%, 100% { transform: skewX(0deg) skewY(0deg); }
  22% { transform: skewX(-8deg) skewY(-8deg); }
  33% { transform: skewX(6deg) skewY(6deg); }
  44% { transform: skewX(-4deg) skewY(-4deg); }
  55% { transform: skewX(2deg) skewY(2deg); }
  66% { transform: skewX(-1deg) skewY(-1deg); }
}
@keyframes heartBeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.15); }
  28% { transform: scale(1); }
  42% { transform: scale(1.15); }
  70% { transform: scale(1); }
}
@keyframes flash {
  0%, 50%, 100% { opacity: 1; }
  25%, 75% { opacity: 0.3; }
}
@keyframes tada {
  0%, 100% { transform: scale(1) rotate(0deg); }
  10%, 20% { transform: scale(0.9) rotate(-3deg); }
  30%, 50%, 70%, 90% { transform: scale(1.1) rotate(3deg); }
  40%, 60%, 80% { transform: scale(1.1) rotate(-3deg); }
}
@keyframes wiggle {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}
@keyframes glow {
  0%, 100% { filter: brightness(1) drop-shadow(0 0 5px rgba(255,255,255,0.3)); }
  50% { filter: brightness(1.2) drop-shadow(0 0 20px rgba(255,255,255,0.6)); }
}
@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}
@keyframes blurIn {
  from { filter: blur(20px); opacity: 0; }
  to { filter: blur(0); opacity: 1; }
}
@keyframes dropIn {
  0% { transform: translateY(-200%) scale(0.5); opacity: 0; }
  70% { transform: translateY(10%); }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

/* ============================================
   MOBILE RESPONSIVE STYLES
   ============================================ */

/* Desktop/Mobile visibility helpers */
.desktop-only { display: inline; }
.mobile-only { display: none; }

/* Mobile Bottom Toolbar - hidden on desktop */
.mobile-toolbar {
  display: none;
}

/* Mobile overlay panel close button - hidden on desktop */
.mobile-panel-close {
  display: none;
}

@media (max-width: 768px) {
  /* Visibility helpers */
  .desktop-only { display: none !important; }
  .mobile-only { display: inline !important; }
  
  /* Main app layout - stage is fullscreen */
  .app {
    flex-direction: column;
    position: relative;
  }
  
  /* Sidebar becomes overlay panel on mobile */
  .sidebar {
    position: fixed !important;
    bottom: 60px;
    left: 0;
    right: 0;
    top: auto !important;
    width: 100% !important;
    max-width: none !important;
    min-width: 0 !important;
    height: auto !important;
    max-height: 70vh;
    border-right: none;
    border-top: 1px solid var(--border);
    border-radius: 16px 16px 0 0;
    z-index: 100;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
    background: rgba(30, 30, 30, 0.85) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .sidebar.panel-open {
    transform: translateY(0);
  }
  
  /* Hide sidebar resizer on mobile */
  .sidebar-resizer {
    display: none;
  }
  
  /* Header becomes drag handle */
  .sidebar-header {
    height: 48px;
    padding: 0 12px;
    cursor: grab;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
  }
  
  .sidebar-header::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
  }
  
  .logo {
    font-size: 14px;
  }
  
  .header-actions {
    gap: 6px;
  }
  
  .btn-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  
  .btn-primary {
    padding: 8px 14px;
    font-size: 13px;
  }
  
  /* Hide desktop tabs - we use bottom toolbar instead */
  .tools-nav {
    display: none;
  }
  
  /* Sidebar content fills available space */
  .sidebar-content {
    flex: 1;
    overflow-y: auto;
    max-height: none;
    padding-bottom: 20px;
  }
  
  .panel-view {
    padding: 12px;
  }
  
  /* All panel views hidden by default, shown via JS */
  .panel-view {
    display: none !important;
  }
  
  .panel-view.active {
    display: block !important;
  }
  
  /* Layer actions - horizontal scroll */
  .layer-actions {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    flex-wrap: nowrap;
  }
  
  .layer-actions .btn-sm {
    padding: 10px 14px;
    font-size: 13px;
    flex-shrink: 0;
    white-space: nowrap;
  }
  
  /* Layer list */
  .layer-list {
    max-height: 40vh;
  }
  
  .layer-item {
    padding: 12px;
    margin-bottom: 4px;
  }
  
  .layer-item .name {
    font-size: 14px;
  }
  
  .layer-item .del {
    opacity: 0.7;
    padding: 8px 12px;
    font-size: 18px;
  }
  
  /* Preset grid - larger items for touch */
  .preset-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    /* Scrollable in presets view */
    max-height: none;
    overflow-y: auto;
    flex: 1;
  }

  .preset-item {
    padding: 10px 8px;
    min-height: 70px;
  }
  
  .preset-item .name {
    font-size: 10px;
  }
  
  /* Preset slots - fixed at top, horizontal layout for easy drop */
  .preset-slots-panel {
    padding: 12px;
    margin: 12px 12px 0 12px !important;
    background: var(--panel);
    border-radius: var(--radius);
    flex-shrink: 0;
  }
  
  /* Mobile presets view - fixed slots, scrollable presets */
  #view-presets.panel-view.active {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  
  .slots-header {
    font-size: 12px;
    margin-bottom: 10px;
  }
  
  .slot-row {
    gap: 8px;
    margin-bottom: 8px;
  }
  
  .slot-label {
    width: 70px;
    font-size: 12px;
  }
  
  .slot-box {
    height: 44px;
    font-size: 12px;
    border: 2px dashed var(--border);
  }
  
  /* Change hint text on mobile */
  .slot-box.slot-empty::before {
    content: 'Tap to browse';
  }
  
  .slot-box.drag-over {
    border-color: var(--blue);
    background: rgba(14, 99, 156, 0.3);
    transform: scale(1.02);
  }
  
  /* Preset filters - scrollable */
  .preset-filters {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 8px;
    flex-wrap: nowrap;
  }
  
  .preset-filter {
    padding: 8px 14px;
    font-size: 12px;
    flex-shrink: 0;
    white-space: nowrap;
  }
  
  /* Property groups */
  .prop-group {
    padding: 12px;
    margin-bottom: 10px;
  }
  
  .prop-group label {
    font-size: 12px;
    margin-bottom: 6px;
  }
  
  .prop-group input,
  .prop-group select {
    font-size: 14px;
    padding: 10px;
  }
  
  /* Workspace - fullscreen */
  .workspace {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 60px; /* space for toolbar */
    z-index: 1;
  }
  
  .viewport {
    padding: 10px;
    width: 100%;
    height: 100%;
  }
  
  /* Zoom controls - top right on mobile */
  .zoom-controls {
    position: fixed;
    top: 10px;
    right: 10px;
    left: auto;
    bottom: auto;
    padding: 6px;
    gap: 8px;
    z-index: 50;
    background: rgba(30, 30, 30, 0.9);
  }
  
  .zoom-controls button {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  
  #zoom-level {
    font-size: 11px;
    min-width: 40px;
  }
  
  /* Dialog */
  .dialog-box {
    width: 90%;
    max-width: 320px;
    padding: 20px;
  }
  
  .dialog-box h3 {
    font-size: 18px;
    margin-bottom: 16px;
  }
  
  .export-option {
    padding: 16px 14px;
    font-size: 15px;
  }
  
  /* Mobile Bottom Toolbar */
  .mobile-toolbar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--sidebar);
    border-top: 1px solid var(--border);
    padding: 6px 0;
    padding-bottom: max(env(safe-area-inset-bottom, 6px), 6px);
    z-index: 1000;
  }
  
  .mobile-tool-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 4px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 10px;
    cursor: pointer;
    transition: color 0.2s;
  }
  
  .mobile-tool-btn span {
    font-size: 20px;
    line-height: 1;
  }
  
  .mobile-tool-btn.active {
    color: var(--blue);
  }
  
  .mobile-tool-btn:active {
    background: var(--active);
  }
  
  /* Backdrop when panel is open */
  .mobile-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 60px;
    background: rgba(0,0,0,0.5);
    z-index: 99;
  }
  
  .mobile-backdrop.visible {
    display: block;
  }
}

/* Extra small screens */
@media (max-width: 400px) {
  .preset-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .mobile-tool-btn {
    font-size: 9px;
  }
  
  .mobile-tool-btn span {
    font-size: 18px;
  }
  
  .layer-actions .btn-sm {
    padding: 8px 10px;
    font-size: 12px;
  }
}