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


// Make the div behave like a button
.btn-group {
  position: relative;
  font-size: 0; // remove as part 1 of font-size inline-block hack
  white-space: nowrap; // prevent buttons from wrapping when in tight spaces (e.g., the table on the tests page)
}

.btn-group + .btn-group {
  margin-left: 3px;
}

// Optional: Group multiple button groups together for a toolbar
.btn-toolbar {
  font-size: 0; // Hack to remove whitespace that results from using inline-block
  margin-top: 0;
  margin-bottom: 0;
  .btn-group {
    display: inline-block;
  }
  .btn + .btn,
  .btn-group + .btn,
  .btn + .btn-group {
    margin-left: 5px;
  }
}

// Float them, remove border radius, then re-add to first and last elements
.btn-group > .btn {
  position: relative;
  border-radius: 0;
}
.btn-group > .btn + .btn {
  margin-left: -1px;
}
.btn-group > .btn,
.btn-group > .dropdown-menu {
  font-size: @baseFontSize; // redeclare as part 2 of font-size inline-block hack
}

// Reset fonts for other sizes
.btn-group > .btn-small {
  font-size: 12px;
}
.btn-group > .btn-large {
  font-size: 16px;
}

// 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;
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
}
// Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it
.btn-group > .btn:last-child,
.btn-group > .dropdown-toggle {
  border-top-right-radius: 3px;
  border-bottom-right-radius: 3px;
}
// Reset corners for large buttons
.btn-group > .btn.large:first-child {
  margin-left: 0;
  border-top-left-radius: 6px;
  border-bottom-left-radius: 6px;
}
.btn-group > .btn.large:last-child,
.btn-group > .large.dropdown-toggle {
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
}

// On hover/focus/active, bring the proper btn to front
.btn-group > .btn:hover,
.btn-group > .btn:focus,
.btn-group > .btn:active,
.btn-group > .btn.active {
  z-index: 2;
}

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



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

// Give the line between buttons some depth
.btn-group > .btn + .dropdown-toggle {
  padding-left: 8px;
  padding-right: 8px;
  box-shadow: inset 1px 0 0 rgba(255,255,255,.125), inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(0,0,0,.05);
}
.btn-group > .btn-large + .dropdown-toggle {
  padding-left: 12px;
  padding-right: 12px;
}

.btn-group.open {

  // The clickable button for toggling the menu
  // Remove the gradient and set the same inset shadow as the :active state
  .dropdown-toggle {
    background-image: none;
    box-shadow: inset 0 2px 4px rgba(0,0,0,.15), 0 1px 2px rgba(0,0,0,.05);
  }

  // Keep the hover's background when dropdown is open
  .btn.dropdown-toggle {
    background-color: @btnBackgroundHighlight;
  }
  .btn-warning.dropdown-toggle {
    background-color: @btnWarningBackgroundHighlight;
  }
  .btn-danger.dropdown-toggle {
    background-color: @btnDangerBackgroundHighlight;
  }
  .btn-success.dropdown-toggle {
    background-color: @btnSuccessBackgroundHighlight;
  }
}


// Reposition the caret
.btn .caret {
  margin-top: 8px;
  margin-left: 0;
}