@define-color panel_bg_color @window_bg_color;
@define-color panel_fg_color @window_fg_color;

paneltogglebutton.drag-active button:not(:checked) {
  background: alpha(@accent_bg_color, .25);
}

paneldockchild.bottom,
paneldockchild.end,
paneldockchild.start,
paneldockchild.top {
  background: @panel_bg_color;
  color: @panel_fg_color;
}

panelframeheaderbar {
  min-height: 38px;
  padding: 2px;
}
panelframe panelframeheaderbar,
paneldockchild.center panelgrid > panelpaned > panelresizer:first-child:last-child > panelgridcolumn > panelpaned panelresizer:first-child:last-child panelframeheaderbar {
  border-top: 2px solid transparent;
  border-bottom: 1px solid alpha(@borders,.6);
}
panelframe.has-focus panelframeheaderbar {
  border-top: 2px solid @accent_bg_color;
}
panelframeheaderbar > box {
  margin-left: 2px;
  margin-right: 2px;
}
panelframeheaderbar button:not(:hover):not(:checked) {
  background: transparent;
}
panelframeheaderbar button {
  padding: 2px 6px;
  margin: 1px;
  font-weight: normal;
  border-radius: 7px;
}
panelgrid panelframeheaderbar .controls {
  margin-right: 4px;
}
panelgrid panelresizer:last-child > panelgridcolumn panelframeheaderbar .controls {
  /* align with window close button on right-most */
  margin-right: 8px;
}
panelframeheaderbar .controls button.circular {
  padding: 0px;
  margin: 0px;
  min-height: 24px;
  min-width: 24px;
  border-radius: 9999px;
}
panelframeheaderbar .controls button.circular image {
  margin-left: 4px;
  margin-right: 4px;
}

paneldockchild.end panelpaned.vertical panelresizer:first-child panelframe panelframeswitcher,
paneldockchild.start panelpaned.vertical panelresizer:first-child panelframe panelframeswitcher {
  border-bottom: 1px solid alpha(@borders,.6);
}
panelpaned panelframe panelframeswitcher {
  background: @panel_bg_color;
  color: @panel_fg_color;
}
panelpaned panelframe panelframeswitcher:backdrop {
  color: alpha(currentColor, .5);
}
panelpaned.horizontal panelframe panelframeswitcher {
  padding: 2px;
  min-width: 40px;
}
panelpaned.vertical panelframe panelframeswitcher {
  padding: 2px;
  min-height: 40px;
}
panelpaned.vertical panelframe panelframeswitcher button {
  padding: 2px 6px;
}
panelpaned.horizontal panelframe panelframeswitcher button {
  padding: 6px 2px;
}
panelframe panelframeswitcher button {
  border-radius: 10px;
  /* use border instead of margin so that there are no gaps
   * when dragging across buttons. This helps things feel a
   * bit more solid when doing DnD.
   */
  border: 3px solid @panel_bg_color;
}
panelframe panelframeswitcher button:not(:hover):not(:checked):not(:active) {
  background: transparent;
  color: alpha(currentColor, 0.75);
}
panelframeswitcher.drop-indicator {
  color: shade(@theme_selected_bg_color,0.8);
}

panelframe .frameheader .action-bar popover.menu.pages-popover row {
  padding: 0 6px 0 10px;
  border-radius: 6px;
  min-width: 40px;
  min-height: 32px;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row:selected:not(:hover) {
  background: transparent;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row check {
  opacity: 0;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row:selected check {
  opacity: 1;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row .close-button {
  padding: 0;
  margin: 3px 0;
  min-width: 24px;
  min-height: 24px;
  border-radius: 99px;
  border: none;
  box-shadow: none;
  background: none;
  color: transparent;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row:hover .close-button {
  color: @theme_fg_color;
}
panelframe .frameheader .action-bar popover.menu.pages-popover row .close-button:hover {
  background: alpha(black, .08);
}
panelframe .frameheader .action-bar popover.menu.pages-popover row .close-button:active {
  background: alpha(black, .15);
}
panelframe .frameheader tab > button.tab-close-button {
  min-width: 24px;
  min-height: 24px;
}


panelstatusbar {
  min-height: 24px;
  font-size: 0.9em;
  padding-top: 1px;
  box-shadow: inset 0 1px @headerbar_shade_color;
  background: @headerbar_bg_color;
  color: @headerbar_fg_color;
}
panelstatusbar:backdrop {
  background: @headerbar_backdrop_color;
  transition: 200ms ease-in-out;
}
panelstatusbar > * {
  border-right: 1px solid @borders;
  padding-left: 9px;
  padding-right: 9px;
}
panelstatusbar:backdrop > * {
  filter: opacity(.5);
  transition: 200ms ease-in-out;
}
panelstatusbar > *:last-child {
  border-right: none;
}
panelstatusbar paneltogglebutton,
panelstatusbar > menubutton,
panelstatusbar > dropdown {
  padding: 0;
}
panelstatusbar paneltogglebutton button,
panelstatusbar > dropdown > button,
panelstatusbar > menubutton > button,
panelstatusbar > button {
  min-width: 8px;
  border-radius: 0;
  padding: 0 9px;
}
panelstatusbar.rounded > button:first-child,
panelstatusbar.rounded > dropdown:first-child > button,
panelstatusbar.rounded > menubutton:first-child > button,
panelstatusbar.rounded > paneltogglebutton:first-child button {
  border-bottom-left-radius: 12px;
}

panelstatusbar.rounded > button:last-child,
panelstatusbar.rounded > dropdown:last-child > button,
panelstatusbar.rounded > menubutton:last-child > button,
panelstatusbar.rounded > paneltogglebutton:last-child button {
  border-bottom-right-radius: 12px;
}
panelstatusbar paneltogglebutton button,
panelstatusbar > dropdown > button,
panelstatusbar > menubutton > button,
panelstatusbar > button {
  background: transparent;
}
panelstatusbar paneltogglebutton button:hover,
panelstatusbar > dropdown > button:hover,
panelstatusbar > menubutton > button:hover,
panelstatusbar > button:hover {
  background: alpha(currentColor, .07);
}
panelstatusbar paneltogglebutton button:active,
panelstatusbar paneltogglebutton button.keyboard-activating,
panelstatusbar > dropdown > button:hover,
panelstatusbar > dropdown > button.keyboard-activating,
panelstatusbar > menubutton > button:hover,
panelstatusbar > menubutton > button.keyboard-activating,
panelstatusbar > button:hover,
panelstatusbar > button.keyboard-activating {
  background: alpha(currentColor, .16);
}
panelstatusbar paneltogglebutton button:checked,
panelstatusbar > dropdown > button:checked,
panelstatusbar > menubutton > button:checked,
panelstatusbar > button:checked {
  background: alpha(currentColor, .1);
}
panelstatusbar paneltogglebutton button:checked:hover,
panelstatusbar > dropdown > button:checked:hover,
panelstatusbar > menubutton > button:checked:hover,
panelstatusbar > button:hover {
  background: alpha(currentColor, .13);
}
panelstatusbar paneltogglebutton button:checked:active,
panelstatusbar paneltogglebutton button:checked.keyboard-activating,
panelstatusbar > dropdown > button:checked:hover,
panelstatusbar > dropdown > button:checked.keyboard-activating,
panelstatusbar > menubutton > button:checked:hover,
panelstatusbar > menubutton > button:checked.keyboard-activating,
panelstatusbar > button:hover,
panelstatusbar > button.keyboard-activating {
  background: alpha(currentColor, .19);
}
panelstatusbar > dropdown > button label,
panelstatusbar > menubutton > button label,
panelstatusbar > button label {
  font-weight: normal;
}

panelframe panelframetabbar {
  border-bottom: 1px solid alpha(@borders,.6);
  min-height: 44px;
}
panelframe panelframetabbar:backdrop {
  color: alpha(currentColor, .5);
}
panelframe panelframetabbar > overlay > box.focus-handle,
paneldockchild.center panelgrid > panelpaned > panelresizer:first-child:last-child > panelgridcolumn > panelpaned panelresizer:first-child:last-child panelframetabbar box.focus-handle {
  min-height: 2px;
  background: transparent;
}
panelframe.has-focus panelframetabbar > overlay > box.focus-handle {
  background: @accent_bg_color;
}
panelframe panelframetabbar tabbox tab button {
  min-height: 0;
}
panelframe panelframetabbar button.frame-close-button {
  min-width: 28px;
  min-height: 28px;
}

splitbutton.omnibar > button {
  margin-bottom: 0;
  margin-top: 0;
  padding-bottom: 0;
  padding-top: 0;
}


/* frame switcher buttons */
panelframeheaderbar button {
  background: none;
}
panelframeheaderbar button:checked,
panelframeswitcher button:checked {
 background: alpha(currentColor, .125);
}
panelframeheaderbar button:hover,
panelframeswitcher button:hover {
 background: alpha(currentColor, .1);
}
panelframeheaderbar button:hover:checked,
panelframeswitcher button:hover:checked {
 background: alpha(currentColor, .15);
}
panelframeheaderbar button:active:hover,
panelframeswitcher button:active:hover {
 background: alpha(currentColor, .25);
}


panelframeheaderbar image,
panelframeheaderbar label {
  -gtk-icon-shadow: none;
  text-shadow: 0 -1px alpha(currentColor,0.05);
}



panelthemeselector {
  margin: 9px;
}
panelthemeselector checkbutton {
  padding: 0;
  min-height: 44px;
  min-width: 44px;
  padding: 1px;
  background-clip: content-box;
  border-radius: 9999px;
  box-shadow: inset 0 0 0 1px @borders;
}
panelthemeselector checkbutton.follow:checked,
panelthemeselector checkbutton.light:checked,
panelthemeselector checkbutton.dark:checked {
  box-shadow: inset 0 0 0 2px @theme_selected_bg_color;
}
panelthemeselector checkbutton.follow {
  background-image: linear-gradient(to bottom right, #fff 49.99%, #202020 50.01%);
}
panelthemeselector checkbutton.light {
  background-color: #fff;
}
panelthemeselector checkbutton.dark {
  background-color: #202020;
}
panelthemeselector checkbutton radio {
  -gtk-icon-source: none;
  border: none;
  background: none;
  box-shadow: none;
  min-width: 12px;
  min-height: 12px;
  transform: translate(27px, 14px);
  padding: 2px;
}
panelthemeselector checkbutton radio:checked {
  -gtk-icon-source: -gtk-icontheme("object-select-symbolic");
  background-color: @theme_selected_bg_color;
  color: @theme_selected_fg_color;
}


splitbutton.omnibar {
  background: alpha(currentColor, 0.075);
}


panelframe:drop(active) {
  box-shadow: none;
}
panelframe paneldropcontrols {
  transition-property: background, border;
  transition-duration: 300ms;
  border-radius: 7px;
  margin: 1px;
}
panelframe paneldropcontrols {
  background: alpha(@accent_bg_color, .1);
}
panelframe paneldropcontrols:drop(active) {
  background: alpha(@accent_bg_color, .3);
  box-shadow: inset 0 0 0 1px @accent_bg_color;
}
paneldropcontrols button {
  border-radius: 11px;
  color: alpha(@theme_selected_fg_color, .8);
  background-color: @accent_bg_color;
  box-shadow: 0 3px 5px rgba(0,0,0,.2);
  padding: 0;
}
paneldropcontrols button.circular {
  border-radius: 9999px;
}
paneldropcontrols button:drop(active) {
  background-color: mix(@accent_bg_color, @accent_fg_color, .3);
  color: @theme_selected_fg_color;
}

panelprogressicon {
  color: @accent_bg_color;
}