* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  background: #2b2b2b;
  color: #ddd;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

#toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: #383838;
  border-bottom: 1px solid #1a1a1a;
}

#toolbar button {
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  padding: 5px 10px;
  cursor: pointer;
}

#toolbar button:hover {
  background: #565656;
}

#toolbar button.active {
  background: #2f7bd6;
  border-color: #2f7bd6;
  color: #fff;
}

.toolbar-field {
  display: flex;
  align-items: center;
  gap: 6px;
}

.toolbar-spacer {
  flex: 1;
}

.hidden {
  display: none !important;
}

#menu-bar {
  display: flex;
  background: #2d2d2d;
  border-bottom: 1px solid #1a1a1a;
}

.menu-top-item {
  background: none;
  border: none;
  color: #ddd;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}

.menu-top-item:hover {
  background: #444;
}

.menu-dropdown {
  position: fixed;
  z-index: 1000;
  min-width: 220px;
  background: #3a3a3a;
  border: 1px solid #1a1a1a;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  padding: 4px 0;
}

.menu-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 14px;
  cursor: pointer;
  white-space: nowrap;
}

.menu-item:hover {
  background: #2f7bd6;
}

.menu-item.disabled {
  color: #777;
  cursor: default;
}

.menu-item.disabled:hover {
  background: none;
}

.shortcut-hint {
  color: #999;
  font-size: 11px;
}

.menu-separator {
  height: 1px;
  background: #555;
  margin: 4px 8px;
}

#tab-bar {
  display: flex;
  background: #262626;
  border-bottom: 1px solid #1a1a1a;
  overflow-x: auto;
}

.tab-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  cursor: pointer;
  border-right: 1px solid #1a1a1a;
  color: #aaa;
}

.tab-item.active {
  background: #383838;
  color: #fff;
}

.tab-close {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0 2px;
}

#transform-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: #383838;
  border-bottom: 1px solid #1a1a1a;
}

#transform-bar label {
  display: flex;
  align-items: center;
  gap: 4px;
}

#transform-bar input {
  width: 60px;
}

#transform-bar button {
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  padding: 4px 8px;
  cursor: pointer;
}

#swatches {
  display: flex;
  align-items: center;
  gap: 4px;
}

#swatches input[type="color"] {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid #555;
  background: none;
}

#zoom-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

#zoom-display {
  min-width: 44px;
  text-align: center;
}

#workspace {
  display: flex;
  flex: 1;
  min-height: 0;
}

#canvas-wrap {
  flex: 1;
  display: flex;
  overflow: auto;
  background: #202020;
  background-image:
    linear-gradient(45deg, #2a2a2a 25%, transparent 25%),
    linear-gradient(-45deg, #2a2a2a 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #2a2a2a 75%),
    linear-gradient(-45deg, transparent 75%, #2a2a2a 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

#view-canvas {
  box-shadow: 0 0 0 1px #000, 0 4px 20px rgba(0, 0, 0, 0.5);
  touch-action: none;
  cursor: crosshair;
  margin: auto;
  flex-shrink: 0;
}

#sidebar {
  width: 240px;
  border-left: 1px solid #1a1a1a;
  display: flex;
  flex-direction: column;
}

#layers-panel {
  background: #333;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

#layers-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px;
  border-bottom: 1px solid #1a1a1a;
}

#layers-header span {
  flex: 1;
  font-weight: 600;
}

#layers-header button {
  width: 24px;
  height: 24px;
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  cursor: pointer;
}

#layer-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border-bottom: 1px solid #1a1a1a;
}

#layer-controls .toolbar-field {
  width: 100%;
}

#layer-controls .toolbar-field input[type="range"] {
  flex: 1;
  min-width: 0;
}

#layer-controls select {
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  padding: 3px;
  width: 100%;
}

#layer-list {
  overflow-y: auto;
  flex: 1;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  cursor: pointer;
  border-bottom: 1px solid #2a2a2a;
}

.layer-item:hover {
  background: #3d3d3d;
}

.layer-item.active {
  background: #2f5d8f;
}

.layer-vis {
  background: none;
  border: none;
  color: #ddd;
  cursor: pointer;
  width: 18px;
}

.layer-thumb {
  border: 1px solid #555;
  background: #fff;
}

.layer-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-chevron {
  background: none;
  border: none;
  color: #aaa;
  cursor: pointer;
  width: 14px;
  padding: 0;
}

.layer-folder-icon {
  font-size: 14px;
}

.layer-mask-thumb {
  border: 1px solid #555;
  background: #000;
}

.layer-mask-thumb.active {
  border-color: #2f7bd6;
  border-width: 2px;
}

#history-panel {
  height: 200px;
  background: #333;
  border-top: 1px solid #1a1a1a;
  display: flex;
  flex-direction: column;
}

#history-header {
  padding: 8px;
  font-weight: 600;
  border-bottom: 1px solid #1a1a1a;
}

#history-list {
  overflow-y: auto;
  flex: 1;
}

.history-item {
  padding: 5px 10px;
  cursor: pointer;
  border-bottom: 1px solid #2a2a2a;
}

.history-item:hover {
  background: #3d3d3d;
}

.history-item.active {
  background: #2f5d8f;
}

#modal-root.hidden {
  display: none;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal-box {
  background: #383838;
  border: 1px solid #1a1a1a;
  border-radius: 4px;
  padding: 16px 20px;
  min-width: 320px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.modal-box h2 {
  margin: 0 0 12px;
  font-size: 15px;
}

.modal-body {
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.modal-footer button {
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  padding: 6px 14px;
  cursor: pointer;
}

.modal-footer button.modal-ok {
  background: #2f7bd6;
  border-color: #2f7bd6;
  color: #fff;
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-grid label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.form-grid input[type="text"],
.form-grid input[type="number"],
.form-grid select {
  background: #4a4a4a;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 3px;
  padding: 4px 6px;
  width: 160px;
}

.anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 24px);
  grid-template-rows: repeat(3, 24px);
  gap: 2px;
  justify-content: center;
  margin-top: 4px;
}

.anchor-cell {
  background: #4a4a4a;
  border: 1px solid #555;
  cursor: pointer;
}

.anchor-cell.active {
  background: #2f7bd6;
}

.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
}