/* ------------------------------------------
CSS3 GITHUB BUTTONS (Nicolas Gallagher)
Licensed under Unlicense 
http://github.com/necolas/css3-github-buttons
------------------------------------------ */


/* ------------------------------------------------------------------------------------------------------------- BUTTON */

.button { 
    position: relative; 
    overflow: visible; 
    display: inline-block; 
    padding: 0.5em 1em; 
    border: 1px solid #d4d4d4; 
    margin: 0;
    text-decoration: none; 
    text-shadow: 1px 1px 0 #fff; 
    font:11px/normal sans-serif; 
    color: #333; 
    white-space: nowrap; 
    cursor: pointer; 
    outline: none; 
    background-color: #ececec;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#f4f4f4), to(#ececec));
    background-image: -moz-linear-gradient(#f4f4f4, #ececec);
    background-image: -o-linear-gradient(#f4f4f4, #ececec);
    background-image: linear-gradient(#f4f4f4, #ececec);
    -webkit-background-clip: padding;
    -moz-background-clip: padding;
    -o-background-clip: padding-box; 
    /*background-clip: padding-box;*/ /* commented out due to Opera 11.10 bug */
    -webkit-border-radius: 0.2em; 
    -moz-border-radius: 0.2em; 
    border-radius: 0.2em; 
    /* IE hacks */
    zoom: 1; 
    *display: inline; 
}

.button:hover,
.button:focus,
.button:active,
.button.active {
    border-color: #3072b3;
    border-bottom-color: #2a65a0;
    text-decoration: none; 
    text-shadow: -1px -1px 0 rgba(0,0,0,0.3); 
    color: #fff; 
    background-color: #3C8DDE;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#599bdc), to(#3072b3));
    background-image: -moz-linear-gradient(#599bdc, #3072b3);
    background-image: -o-linear-gradient(#599bdc, #3072b3);
    background-image: linear-gradient(#599bdc, #3072b3);
}

.button:active,
.button.active {
    border-color: #2a65a0;
    border-bottom-color: #3884CF;
    background-color: #3072b3;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#3072b3), to(#599bdc));
    background-image: -moz-linear-gradient(#3072b3, #599bdc);
    background-image: -o-linear-gradient(#3072b3, #599bdc);
    background-image: linear-gradient(#3072b3, #599bdc);
}

/* overrides extra padding on button elements in Firefox */
.button::-moz-focus-inner {
    padding: 0;
    border: 0;
}

/* ............................................................................................................. Icons */

.button.icon:before {
    content: "";
    position: relative; 
    top: 1px; 
    float:left;
    width: 12px; 
    height: 12px; 
    margin: 0 0.75em 0 -0.25em; 
    background: url(../images/gh-icons.png) 0 99px no-repeat;
}

.button.arrowup.icon:before { background-position: 0 0; }
.button.arrowup.icon:hover:before,
.button.arrowup.icon:focus:before,
.button.arrowup.icon:active:before { background-position: -12px 0; }

.button.arrowdown.icon:before { background-position: 0 -12px; }
.button.arrowdown.icon:hover:before,
.button.arrowdown.icon:focus:before,
.button.arrowdown.icon:active:before { background-position: -12px -12px; }

.button.arrowleft.icon:before { background-position: 0 -24px; }
.button.arrowleft.icon:hover:before,
.button.arrowleft.icon:focus:before,
.button.arrowleft.icon:active:before { background-position: -12px -24px; }

.button.arrowright.icon:before { float:right; margin: 0 -0.25em 0 0.5em; background-position: 0 -36px; }
.button.arrowright.icon:hover:before,
.button.arrowright.icon:focus:before,
.button.arrowright.icon:active:before { background-position: -12px -36px; }

.button.approve.icon:before { background-position: 0 -48px; }
.button.approve.icon:hover:before,
.button.approve.icon:focus:before,
.button.approve.icon:active:before { background-position: -12px -48px; }

.button.add.icon:before { background-position: 0 -288px; }
.button.add.icon:hover:before,
.button.add.icon:focus:before,
.button.add.icon:active:before { background-position: -12px -288px; }

.button.remove.icon:before { background-position: 0 -60px; }
.button.remove.icon:hover:before,
.button.remove.icon:focus:before,
.button.remove.icon:active:before { background-position: -12px -60px; }

.button.log.icon:before { background-position: 0 -72px; }
.button.log.icon:hover:before,
.button.log.icon:focus:before,
.button.log.icon:active:before { background-position: -12px -72px; }

.button.calendar.icon:before { background-position: 0 -84px; }
.button.calendar.icon:hover:before,
.button.calendar.icon:focus:before,
.button.calendar.icon:active:before { background-position: -12px -84px; }

.button.chat.icon:before { background-position: 0 -96px; }
.button.chat.icon:hover:before,
.button.chat.icon:focus:before,
.button.chat.icon:active:before { background-position: -12px -96px; }

.button.clock.icon:before { background-position: 0 -108px; }
.button.clock.icon:hover:before,
.button.clock.icon:focus:before,
.button.clock.icon:active:before { background-position: -12px -108px; }

.button.settings.icon:before { background-position: 0 -120px; }
.button.settings.icon:hover:before,
.button.settings.icon:focus:before,
.button.settings.icon:active:before { background-position: -12px -120px; }

.button.comment.icon:before { background-position: 0 -132px; }
.button.comment.icon:hover:before,
.button.comment.icon:focus:before,
.button.comment.icon:active:before { background-position: -12px -132px; }

.button.fork.icon:before { background-position: 0 -144px; }
.button.fork.icon:hover:before,
.button.fork.icon:focus:before,
.button.fork.icon:active:before { background-position: -12px -144px; }

.button.like.icon:before { background-position: 0 -156px; }
.button.like.icon:hover:before,
.button.like.icon:focus:before,
.button.like.icon:active:before { background-position: -12px -156px; }

.button.favorite.icon:before { background-position: 0 -348px; }
.button.favorite.icon:hover:before,
.button.favorite.icon:focus:before,
.button.favorite.icon:active:before { background-position: -12px -348px; }

.button.home.icon:before { background-position: 0 -168px; }
.button.home.icon:hover:before,
.button.home.icon:focus:before,
.button.home.icon:active:before { background-position: -12px -168px; }

.button.key.icon:before { background-position: 0 -180px; }
.button.key.icon:hover:before,
.button.key.icon:focus:before,
.button.key.icon:active:before { background-position: -12px -180px; }

.button.lock.icon:before { background-position: 0 -192px; }
.button.lock.icon:hover:before,
.button.lock.icon:focus:before,
.button.lock.icon:active:before { background-position: -12px -192px; }

.button.unlock.icon:before { background-position: 0 -204px; }
.button.unlock.icon:hover:before,
.button.unlock.icon:focus:before,
.button.unlock.icon:active:before { background-position: -12px -204px; }

.button.loop.icon:before { background-position: 0 -216px; }
.button.loop.icon:hover:before,
.button.loop.icon:focus:before,
.button.loop.icon:active:before { background-position: -12px -216px; }

.button.search.icon:before { background-position: 0 -228px; }
.button.search.icon:hover:before,
.button.search.icon:focus:before,
.button.search.icon:active:before { background-position: -12px -228px; }

.button.mail.icon:before { background-position: 0 -240px; }
.button.mail.icon:hover:before,
.button.mail.icon:focus:before,
.button.mail.icon:active:before { background-position: -12px -240px; }

.button.move.icon:before { background-position: 0 -252px; }
.button.move.icon:hover:before,
.button.move.icon:focus:before,
.button.move.icon:active:before { background-position: -12px -252px; }

.button.edit.icon:before { background-position: 0 -264px; }
.button.edit.icon:hover:before,
.button.edit.icon:focus:before,
.button.edit.icon:active:before { background-position: -12px -264px; }

.button.pin.icon:before { background-position: 0 -276px; }
.button.pin.icon:hover:before,
.button.pin.icon:focus:before,
.button.pin.icon:active:before { background-position: -12px -276px; }

.button.reload.icon:before { background-position: 0 -300px; }
.button.reload.icon:hover:before,
.button.reload.icon:focus:before,
.button.reload.icon:active:before { background-position: -12px -300px; }

.button.rss.icon:before { background-position: 0 -312px; }
.button.rss.icon:hover:before,
.button.rss.icon:focus:before,
.button.rss.icon:active:before { background-position: -12px -312px; }

.button.tag.icon:before { background-position: 0 -324px; }
.button.tag.icon:hover:before,
.button.tag.icon:focus:before,
.button.tag.icon:active:before { background-position: -12px -324px; }

.button.trash.icon:before { background-position: 0 -336px; }
.button.trash.icon:hover:before,
.button.trash.icon:focus:before,
.button.trash.icon:active:before { background-position: -12px -336px; }

.button.user.icon:before { background-position: 0 -360px; }
.button.user.icon:hover:before,
.button.user.icon:focus:before,
.button.user.icon:active:before { background-position: -12px -360px; }


/* ------------------------------------------------------------------------------------------------------------- BUTTON EXTENSIONS */

/* ............................................................................................................. Primary */

.button.primary {
    font-weight: bold;
}

/* ............................................................................................................. Danger */

.button.danger {
    color: #900;
}

.button.danger:hover,
.button.danger:focus,
.button.danger:active {     
    border-color: #b53f3a;
    border-bottom-color: #a0302a;
    color: #fff; 
    background-color: #dc5f59;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#dc5f59), to(#b33630));
    background-image: -moz-linear-gradient(#dc5f59, #b33630);
    background-image: -o-linear-gradient(#dc5f59, #b33630);
    background-image: linear-gradient(#dc5f59, #b33630);
}

.button.danger:active,
.button.danger.active {   
    border-color: #a0302a;
    border-bottom-color: #bf4843;
    background-color: #b33630;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#b33630), to(#dc5f59));
    background-image: -moz-linear-gradient(#b33630, #dc5f59);
    background-image: -o-linear-gradient(#b33630, #dc5f59);
    background-image: linear-gradient(#b33630, #dc5f59);
}

/* ............................................................................................................. Pill */

.button.pill {
    -webkit-border-radius: 50em; 
    -moz-border-radius: 50em; 
    border-radius: 50em; 
}

/* ............................................................................................................. Disable */

.button.disable {
    opacity: 0.5;
}

/* ............................................................................................................. Big */

.button.big {
    font-size: 14px; 
}

.button.big.icon:before { top: 0; }


/* ------------------------------------------------------------------------------------------------------------- BUTTON GROUPS */

/* ............................................................................................................. Standard */

.button-group {
    display: inline-block;
    list-style: none;
    padding: 0;
    margin: 0;
    /* IE hacks */
    zoom: 1; 
    *display: inline; 
}

.button + .button,
.button + .button-group,
.button-group + .button,
.button-group + .button-group {
    margin-left: 15px;
}

.button-group li {
    float: left;
    padding: 0;
    margin: 0;
}

.button-group .button {
    float: left;
    margin-left: -1px; 
}

.button-group > .button:not(:first-child):not(:last-child),
.button-group li:not(:first-child):not(:last-child) .button { 
    -webkit-border-radius: 0; 
    -moz-border-radius: 0; 
    border-radius: 0; 
}

.button-group > .button:first-child,
.button-group li:first-child .button { 
    margin-left: 0; 
    -webkit-border-top-right-radius: 0; 
    -webkit-border-bottom-right-radius: 0; 
    -moz-border-radius-topright: 0; 
    -moz-border-radius-bottomright: 0; 
    border-top-right-radius: 0; 
    border-bottom-right-radius: 0; 
}

.button-group > .button:last-child,
.button-group li:last-child > .button { 
    -webkit-border-top-left-radius: 0; 
    -webkit-border-bottom-left-radius: 0; 
    -moz-border-radius-topleft: 0; 
    -moz-border-radius-bottomleft: 0; 
    border-top-left-radius: 0; 
    border-bottom-left-radius: 0; 
}

/* ............................................................................................................. Minor */

.button-group.minor-group .button {
    border: 1px solid #d4d4d4; 
    text-shadow: none;
    background-image: none;
    background-color: #fff;
}

.button-group.minor-group .button:hover,
.button-group.minor-group .button:focus,
.button-group.minor-group .button:active {
    background-color: #599bdc;
}

.button-group.minor-group .button:active,
.button-group.minor-group .button.active {
    background-color: #3072b3;
}

.button-group.minor-group .button.icon:before {
    opacity: 0.8;
}

/* ------------------------------------------------------------------------------------------------------------- BUTTON CONTAINER */
/* For mixing buttons and button groups, e.g., in a navigation bar */

.button-container .button,
.button-container .button-group {
    vertical-align: top;
}

//
// Button groups
// --------------------------------------------------

// Make the div behave like a button
.btn-group,
.btn-group-vertical {
  position: relative;
  display: inline-block;
  vertical-align: middle; // match .btn alignment given font-size hack above
  > .btn {
    position: relative;
    float: left;
    // Bring the "active" button to the front
    &:hover,
    &:focus,
    &:active,
    &.active {
      z-index: 2;
    }
  }
}

// Prevent double borders when buttons are next to each other
.btn-group {
  .btn + .btn,
  .btn + .btn-group,
  .btn-group + .btn,
  .btn-group + .btn-group {
    margin-left: -1px;
  }
}

// Optional: Group multiple button groups together for a toolbar
.btn-toolbar {
  margin-left: -5px; // Offset the first child's margin
  &:extend(.clearfix all);

  .btn,
  .btn-group,
  .input-group {
    float: left;
  }
  > .btn,
  > .btn-group,
  > .input-group {
    margin-left: 5px;
  }
}

.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
  border-radius: 0;
}

// Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match
.btn-group > .btn:first-child {
  margin-left: 0;
  &:not(:last-child):not(.dropdown-toggle) {
    .border-right-radius(0);
  }
}
// Need .dropdown-toggle since :last-child doesn't apply, given that a .dropdown-menu is used immediately after it
.btn-group > .btn:last-child:not(:first-child),
.btn-group > .dropdown-toggle:not(:first-child) {
  .border-left-radius(0);
}

// Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
.btn-group > .btn-group {
  float: left;
}
.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
  border-radius: 0;
}
.btn-group > .btn-group:first-child:not(:last-child) {
  > .btn:last-child,
  > .dropdown-toggle {
    .border-right-radius(0);
  }
}
.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
  .border-left-radius(0);
}

// On active and open, don't show outline
.btn-group .dropdown-toggle:active,
.btn-group.open .dropdown-toggle {
  outline: 0;
}


// Sizing
//
// Remix the default button sizing classes into new ones for easier manipulation.

.btn-group-xs > .btn { &:extend(.btn-xs); }
.btn-group-sm > .btn { &:extend(.btn-sm); }
.btn-group-lg > .btn { &:extend(.btn-lg); }


// Split button dropdowns
// ----------------------

// Give the line between buttons some depth
.btn-group > .btn + .dropdown-toggle {
  padding-left: 8px;
  padding-right: 8px;
}
.btn-group > .btn-lg + .dropdown-toggle {
  padding-left: 12px;
  padding-right: 12px;
}

// The clickable button for toggling the menu
// Remove the gradient and set the same inset shadow as the :active state
.btn-group.open .dropdown-toggle {
  .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));

  // Show no shadow for `.btn-link` since it has no other button styles.
  &.btn-link {
    .box-shadow(none);
  }
}


// Reposition the caret
.btn .caret {
  margin-left: 0;
}
// Carets in other button sizes
.btn-lg .caret {
  border-width: @caret-width-large @caret-width-large 0;
  border-bottom-width: 0;
}
// Upside down carets for .dropup
.dropup .btn-lg .caret {
  border-width: 0 @caret-width-large @caret-width-large;
}


// Vertical button groups
// ----------------------

.btn-group-vertical {
  > .btn,
  > .btn-group,
  > .btn-group > .btn {
    display: block;
    float: none;
    width: 100%;
    max-width: 100%;
  }

  // Clear floats so dropdown menus can be properly placed
  > .btn-group {
    &:extend(.clearfix all);
    > .btn {
      float: none;
    }
  }

  > .btn + .btn,
  > .btn + .btn-group,
  > .btn-group + .btn,
  > .btn-group + .btn-group {
    margin-top: -1px;
    margin-left: 0;
  }
}

.btn-group-vertical > .btn {
  &:not(:first-child):not(:last-child) {
    border-radius: 0;
  }
  &:first-child:not(:last-child) {
    .border-top-radius(@btn-border-radius-base);
    .border-bottom-radius(0);
  }
  &:last-child:not(:first-child) {
    .border-top-radius(0);
    .border-bottom-radius(@btn-border-radius-base);
  }
}
.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
  border-radius: 0;
}
.btn-group-vertical > .btn-group:first-child:not(:last-child) {
  > .btn:last-child,
  > .dropdown-toggle {
    .border-bottom-radius(0);
  }
}
.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
  .border-top-radius(0);
}


// Justified button groups
// ----------------------

.btn-group-justified {
  display: table;
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  > .btn,
  > .btn-group {
    float: none;
    display: table-cell;
    width: 1%;
  }
  > .btn-group .btn {
    width: 100%;
  }

  > .btn-group .dropdown-menu {
    left: auto;
  }
}


// Checkbox and radio options
//
// In order to support the browser's form validation feedback, powered by the
// `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
// `display: none;` or `visibility: hidden;` as that also hides the popover.
// Simply visually hiding the inputs via `opacity` would leave them clickable in
// certain cases which is prevented by using `clip` and `pointer-events`.
// This way, we ensure a DOM element is visible to position the popover from.
//
// See https://github.com/twbs/bootstrap/pull/12794 and
// https://github.com/twbs/bootstrap/pull/14559 for more information.

[data-toggle="buttons"] {
  > .btn,
  > .btn-group > .btn {
    input[type="radio"],
    input[type="checkbox"] {
      position: absolute;
      clip: rect(0,0,0,0);
      pointer-events: none;
    }
  }
}