// The dropdown wrapper (`<div>`)
.dropup,
.dropright,
.dropdown,
.dropleft
  position: relative

.dropdown-toggle
  // Generate the caret automatically
  +caret

// The dropdown menu
.dropdown-menu
  position: absolute
  top: 100%
  left: 0
  z-index: $zindex-dropdown
  display: none

  // none by default, but block on "open" of the menu
  float: left
  min-width: $dropdown-min-width
  padding: $dropdown-padding-y 0
  margin: $dropdown-spacer 0 0

  // override default ul
  font-size: $font-size-base

  // Redeclare because nesting can cause inheritance issues
  color: $body-color
  text-align: left

  // Ensures proper alignment if parent has it changed (e.g., modal footer)
  list-style: none
  background-color: $dropdown-bg
  background-clip: padding-box
  border: $dropdown-border-width solid $dropdown-border-color

  +border-radius($dropdown-border-radius)
  +box-shadow($dropdown-box-shadow)

.dropdown-menu-right
  right: 0
  left: auto

// Allow for dropdowns to go bottom up (aka, dropup-menu)
// Just add .dropup after the standard .dropdown class and you're set.
.dropup
  .dropdown-menu
    top: auto
    bottom: 100%
    margin-top: 0
    margin-bottom: $dropdown-spacer

  .dropdown-toggle
    +caret(up)

.dropright
  .dropdown-menu
    top: 0
    right: auto
    left: 100%
    margin-top: 0
    margin-left: $dropdown-spacer

  .dropdown-toggle
    +caret(right)

    &::after
      vertical-align: 0

.dropleft
  .dropdown-menu
    top: 0
    right: 100%
    left: auto
    margin-top: 0
    margin-right: $dropdown-spacer

  .dropdown-toggle
    +caret(left)

    &::before
      vertical-align: 0

// When enabled Popper.js, reset basic dropdown position
// stylelint-disable no-duplicate-selectors
.dropdown-menu
  &[x-placement^="top"],
  &[x-placement^="right"],
  &[x-placement^="bottom"],
  &[x-placement^="left"]
    right: auto
    bottom: auto

// stylelint-enable no-duplicate-selectors

// Dividers (basically an `<hr>`) within the dropdown
.dropdown-divider
  +nav-divider($dropdown-divider-bg)

// Links, buttons, and more within the dropdown menu
//
// `<button>`-specific styles are denoted with `// For <button>s`
.dropdown-item
  display: block
  width: 100%

  // For `<button>`s
  padding: $dropdown-item-padding-y $dropdown-item-padding-x
  clear: both
  font-weight: $font-weight-normal
  color: $dropdown-link-color
  text-align: inherit

  // For `<button>`s
  white-space: nowrap

  // prevent links from randomly breaking onto new lines
  background-color: transparent

  // For `<button>`s
  border: 0

  // For `<button>`s

  +hover-focus
    color: $dropdown-link-hover-color
    text-decoration: none

    +gradient-bg($dropdown-link-hover-bg)


  &.active,
  &:active
    color: $dropdown-link-active-color
    text-decoration: none

    +gradient-bg($dropdown-link-active-bg)

  &.disabled,
  &:disabled
    color: $dropdown-link-disabled-color
    background-color: transparent

    // Remove CSS gradients if they're enabled
    @if $enable-gradients
      background-image: none

.dropdown-menu.show
  display: block

// Dropdown section headers
.dropdown-header
  display: block
  padding: $dropdown-padding-y $dropdown-item-padding-x
  margin-bottom: 0

  // for use with heading elements
  font-size: $font-size-sm
  color: $dropdown-header-color
  white-space: nowrap

  // as with > li > a

// Dropdown text
.dropdown-item-text
  display: block
  padding: $dropdown-item-padding-y $dropdown-item-padding-x
  color: $dropdown-link-color