esengine/packages/editor-app/src/styles/FlexLayoutDock.css

.flexlayout-dock-container {
  width: 100%;
  height: 100%;
  background: #1e1e1e;
  position: relative;
  overflow: hidden;
}

.flexlayout__layout {
  background: #1e1e1e;
  position: absolute !important;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.flexlayout__tabset {
  background: #252526;
}

.flexlayout__tabset_header {
  background: #252526;
  border-bottom: 1px solid #1e1e1e;
  height: 28px;
  min-height: 28px;
}

.flexlayout__tab {
  background: transparent;
  color: #969696;
  border: none;
  padding: 0 16px;
  height: 28px;
  line-height: 28px;
  cursor: default;
  transition: all 0.1s ease;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  position: relative;
}

.flexlayout__tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background-color 0.1s ease;
}

.flexlayout__tab:hover {
  background: rgba(255, 255, 255, 0.03);
  color: #e0e0e0;
}

.flexlayout__tab_button {
  background: transparent !important;
  color: #969696;
  border: none !important;
  border-right: none !important;
  padding: 0 16px;
  height: 28px;
  cursor: pointer;
  transition: all 0.1s ease;
  position: relative;
}

.flexlayout__tab_button::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background-color 0.1s ease;
}

.flexlayout__tab_button:hover {
  background: rgba(255, 255, 255, 0.03) !important;
  color: #e0e0e0;
}

.flexlayout__tab_button--selected {
  background: transparent !important;
  color: #ffffff !important;
  border-bottom: none !important;
}

.flexlayout__tab_button--selected::after {
  background: #007acc;
}

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

.flexlayout__tab_button_content {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3px;
}

.flexlayout__tab_button--selected .flexlayout__tab_button_content {
  font-weight: 500;
}

.flexlayout__tab_button_trailing {
  margin-left: 8px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.flexlayout__tab:hover .flexlayout__tab_button_trailing {
  opacity: 1;
}

.flexlayout__tab_button_trailing svg {
  width: 12px;
  height: 12px;
  color: #cccccc;
}

.flexlayout__tab_button_trailing:hover svg {
  color: #ffffff;
}

.flexlayout__tabset_tabbar_outer {
  background: #2d2d30;
}

.flexlayout__tabset-selected {
  background: #1e1e1e;
}

.flexlayout__splitter {
  background: linear-gradient(to right, transparent, #3e3e42 40%, #3e3e42 60%, transparent);
  transition: all 0.15s ease;
}

.flexlayout__splitter_horz {
  background: linear-gradient(to bottom, transparent, #3e3e42 40%, #3e3e42 60%, transparent);
}

.flexlayout__splitter:hover {
  background: #007acc;
}

.flexlayout__splitter_border {
  background: #1e1e1e;
}

.flexlayout__outline_rect {
  border: 2px solid #007acc;
  box-shadow: 0 0 20px rgba(0, 122, 204, 0.5);
  background: rgba(0, 122, 204, 0.1);
}

.flexlayout__edge_rect {
  background: rgba(0, 122, 204, 0.3);
  border: 2px solid #007acc;
}

.flexlayout__drag_rect {
  border: 2px solid #007acc;
  background: rgba(0, 122, 204, 0.2);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.flexlayout__tabset_content {
  background: #1e1e1e;
  overflow: auto;
}

.flexlayout__tabset_content * {
  cursor: default !important;
}

.flexlayout__tabset_content button,
.flexlayout__tabset_content a,
.flexlayout__tabset_content [role="button"] {
  cursor: pointer !important;
}

.flexlayout__tab_toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px;
}

.flexlayout__tab_toolbar_button {
  background: transparent;
  border: none;
  color: #cccccc;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}

.flexlayout__tab_toolbar_button:hover {
  background: #383838;
  color: #ffffff;
}

.flexlayout__tab_toolbar_button svg {
  width: 14px;
  height: 14px;
}

.flexlayout__popup_menu {
  background: #252526;
  border: 1px solid #454545;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  border-radius: 3px;
}

.flexlayout__popup_menu_item {
  color: #cccccc;
  padding: 8px 16px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.flexlayout__popup_menu_item:hover {
  background: #2a2d2e;
  color: #ffffff;
}

.flexlayout__popup_menu_item:active {
  background: #094771;
}

.flexlayout__border {
  background: #252526;
  border: 1px solid #1e1e1e;
}

.flexlayout__border_top,
.flexlayout__border_bottom {
  border-left: none;
  border-right: none;
}

.flexlayout__border_left,
.flexlayout__border_right {
  border-top: none;
  border-bottom: none;
}

.flexlayout__border_button {
  background: transparent;
  color: #969696;
  border: none;
  border-bottom: 1px solid #1e1e1e;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.1s ease;
  position: relative;
}

.flexlayout__border_button::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background-color 0.1s ease;
}

.flexlayout__border_button:hover {
  background: rgba(255, 255, 255, 0.03);
  color: #e0e0e0;
}

.flexlayout__border_button--selected {
  background: transparent;
  color: #ffffff;
}

.flexlayout__border_button--selected::after {
  background: #007acc;
}

.flexlayout__error_boundary_container {
  background: #1e1e1e;
  color: #f48771;
  padding: 16px;
  font-family: monospace;
}

.flexlayout__error_boundary_message {
  margin-bottom: 8px;
  font-weight: 600;
}