/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/vertical_tabs.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* This style makes tabs appear vertically at the left side 
 * of the window - kinda like a sidebar.
 * If you have disabled titlebar then you need to also get window_control_placeholder_support.css to make space for window control buttons */

:root:not([customizing],[chromehidden~="menubar"]){
  --uc-vertical-tabs-width: 220px;
  --uc-navbar-height: 40px;
}
:root[uidensity="compact"]:not([customizing],[chromehidden~="menubar"]){
  --uc-navbar-height: 34px;
}
#PersonalToolbar,
#tab-notification-deck,
.global-notificationbox,
#main-window:not([inDOMFullscreen]) > body > #browser{
  margin-left: var(--uc-vertical-tabs-width);
}
#tab-notification-deck,
.global-notificationbox{
  width: auto !important;
}
.tabbrowser-tab{
  min-width: 0.1px !important; /* This is to prevent Firefox from thinking that tabs would overflow. Still, if such a situation ever occurs it will prevent the ability to scroll tabs with mouse */
  margin-inline: 0 !important;
}
.tab-label-container[pinned]{
  margin-inline-start: 5.5px;
}
:root:not([customizing]) #tabbrowser-tabs{
  position: absolute !important;
  height: 100vh;
  left: 0;
  padding-top: var(--uc-navbar-height);
  width: var(--uc-vertical-tabs-width);
  background-color: var(--toolbar-bgcolor);
  contain: size;
}
:root[lwtheme]:not([customizing]) #tabbrowser-tabs{
  background-color: var(--lwt-accent-color);
}
@media (-moz-bool-pref: "userchrome.vertical-tabs.on-right.enabled"){
  #PersonalToolbar,
  #tab-notification-deck,
  .global-notificationbox,
  #main-window:not([inDOMFullscreen]) > body > #browser{
    margin-left: 0;
    margin-right: var(--uc-vertical-tabs-width);
  }
  :root:not([customizing]) #tabbrowser-tabs{
    left: unset;
    right: 0;
  }
}
:root:not([customizing]) #toolbar-menubar[autohide="false"] + #TabsToolbar #tabbrowser-tabs{
  height: calc(100vh - 28px); /* 28px is however tall your menubar is */
}
:root:not([customizing]) #TabsToolbar #new-tab-button,
#alltabs-button{
  display: none;
}
#tabbrowser-tabs[hasadjacentnewtabbutton] #tabs-newtab-button{
  display: flex !important;
  flex-grow: 1;
}
.tab-close-button{
  display: flex !important;
}
#tabs-newtab-button > .toolbarbutton-icon{
  background: none !important;
}
#tabs-newtab-button{
  margin: 2px !important;
  border-radius: var(--tab-border-radius);
}
#tabs-newtab-button:hover{
  background-color: var(--toolbarbutton-hover-background) !important;
}
#tabs-newtab-button:hover:active{
  background-color: var(--toolbarbutton-active-background) !important;
}
#TabsToolbar > .titlebar-buttonbox-container{
  position: absolute;
  right: 0;
}
@media (-moz-bool-pref: "userchrome.force-window-controls-on-left.enabled"),
       (-moz-gtk-csd-reversed-placement),
       (-moz-platform: macos){
  #TabsToolbar > .titlebar-buttonbox-container{
    right: unset;
    left: 0;
  }
} 
:root:not([customizing]) #tabbrowser-arrowscrollbox{
  --uc-scrollbox-box-model: -webkit-box;
  --uc-scrollbox-height: 100vh;
  --uc-scrollbutton-display: none;
  --uc-scrollbox-overflow: auto;
}
scrollbox[orient="horizontal"]{
  display: var(--uc-scrollbox-box-model,flex);
  -webkit-box-orient: vertical;
  height: 100%;
  overflow: var(--uc-scrollbox-overflow,initial);
} 
#scrollbutton-up,
#scrollbutton-down{
  display: var(--uc-scrollbutton-display,initial);
}
#titlebar{
  will-change: unset !important;
  transition: none !important;
  opacity: 1 !important;
}