//
// Navbars
// --------------------------------------------------
//== Navbar
//
//##

// Basics of a navbar
$navbar-height ?=                  50px
$navbar-margin-bottom ?=           $line-height-computed
$navbar-border-radius ?=           $border-radius-base
$navbar-padding-horizontal ?=      floor($grid-gutter-width / 2)
$navbar-padding-vertical ?=        (($navbar-height - $line-height-computed) / 2)
$navbar-collapse-max-height ?=     340px

$navbar-default-color ?=           #777
$navbar-default-bg ?=              #f8f8f8
$navbar-default-border ?=          darken($navbar-default-bg, 6.5)

// Navbar links
$navbar-default-link-color ?=              #777
$navbar-default-link-hover-color ?=        #333
$navbar-default-link-hover-bg ?=           transparent
$navbar-default-link-active-color ?=       #555
$navbar-default-link-active-bg ?=          darken($navbar-default-bg, 6.5)
$navbar-default-link-disabled-color ?=     #ccc
$navbar-default-link-disabled-bg ?=        transparent

// Navbar brand label
$navbar-default-brand-color ?=             $navbar-default-link-color
$navbar-default-brand-hover-color ?=       darken($navbar-default-brand-color, 10)
$navbar-default-brand-hover-bg ?=          transparent

// Navbar toggle
$navbar-default-toggle-hover-bg ?=         #ddd
$navbar-default-toggle-icon-bar-bg ?=      #888
$navbar-default-toggle-border-color ?=     #ddd


//=== Inverted navb$code-bgar
// Reset inverted navbar basics
$navbar-inverse-color ?=                    lighten($gray-light, 15)
$navbar-inverse-bg ?=                       #222
$navbar-inverse-border ?=                   darken($navbar-inverse-bg, 10)

// Inverted navbar links
$navbar-inverse-link-color ?=               lighten($gray-light, 15)
$navbar-inverse-link-hover-color ?=         #fff
$navbar-inverse-link-hover-bg ?=            transparent
$navbar-inverse-link-active-color ?=        $navbar-inverse-link-hover-color
$navbar-inverse-link-active-bg ?=           darken($navbar-inverse-bg, 10)
$navbar-inverse-link-disabled-color ?=      #444
$navbar-inverse-link-disabled-bg ?=         transparent

// Inverted navbar brand label
$navbar-inverse-brand-color ?=              $navbar-inverse-link-color
$navbar-inverse-brand-hover-color ?=        #fff
$navbar-inverse-brand-hover-bg ?=           transparent

// Inverted navbar toggle
$navbar-inverse-toggle-hover-bg ?=          #333
$navbar-inverse-toggle-icon-bar-bg ?=       #fff
$navbar-inverse-toggle-border-color ?=      #333

// Wrapper and base class
//
// Provide a static navbar from which we expand to create full-width, fixed, and
// other navbar variations.

.navbar
  position relative
  min-height $navbar-height // Ensure a navbar always shows (e.g., without a .navbar-brand in collapsed mode)
  margin-bottom $navbar-margin-bottom
  border 1px solid transparent

  // Prevent floats from breaking the navbar
  clearfix()

  @media (min-width $grid-float-breakpoint)
    border-radius $navbar-border-radius


// Navbar heading
//
// Groups `.navbar-brand` and `.navbar-toggle` into a single component for easy
// styling of responsive aspects.

.navbar-header
  clearfix()

  @media (min-width $grid-float-breakpoint)
    float left


// Navbar collapse (body)
//
// Group your navbar content into this for easy collapsing and expanding across
// various device sizes. By default, this content is collapsed when <768px, but
// will expand past that for a horizontal display.
//
// To start (on mobile devices) the navbar links, forms, and buttons are stacked
// vertically and include a `max-height` to overflow in case you have too much
// content for the user's viewport.

.navbar-collapse
  overflow-x visible
  padding-right $navbar-padding-horizontal
  padding-left $navbar-padding-horizontal
  border-top 1px solid transparent
  box-shadow inset 0 1px 0 rgba(255, 255, 255, .1)
  clearfix()
  -webkit-overflow-scrolling touch

  &.in
    overflow-y auto

  @media (min-width $grid-float-breakpoint)
    width auto
    border-top 0
    box-shadow none

    &.collapse
      display block !important
      height auto !important
      padding-bottom 0 // Override default setting
      overflow visible !important

    &.in
      overflow-y visible

    // Undo the collapse side padding for navbars with containers to ensure
    // alignment of right-aligned contents.
    .navbar-fixed-top &,
    .navbar-static-top &,
    .navbar-fixed-bottom &
      padding-left 0
      padding-right 0

.navbar-fixed-top,
.navbar-fixed-bottom
  .navbar-collapse
    max-height $navbar-collapse-max-height

    @media (max-device-width $screen-xs-min) and (orientation landscape)
      max-height 200px


// Both navbar header and collapse
//
// When a container is present, change the behavior of the header and collapse.

.container,
.container-fluid
  > .navbar-header,
  > .navbar-collapse
    margin-right (-($navbar-padding-horizontal))
    margin-left (-($navbar-padding-horizontal))

    @media (min-width $grid-float-breakpoint)
      margin-right 0
      margin-left 0


//
// Navbar alignment options
//
// Display the navbar across the entirety of the page or fixed it to the top or
// bottom of the page.

// Static top (unfixed, but 100% wide) navbar
.navbar-static-top
  z-index $zindex-navbar
  border-width 0 0 1px

  @media (min-width $grid-float-breakpoint)
    border-radius 0

// Fix the top/bottom navbars when screen real estate supports it
.navbar-fixed-top,
.navbar-fixed-bottom
  position fixed
  right 0
  left 0
  z-index $zindex-navbar-fixed

  // Undo the rounded corners
  @media (min-width $grid-float-breakpoint)
    border-radius 0

.navbar-fixed-top
  top 0
  border-width 0 0 1px

.navbar-fixed-bottom
  bottom 0
  margin-bottom 0 // override .navbar defaults
  border-width 1px 0 0


// Brand/project name

.navbar-brand
  float left
  padding $navbar-padding-vertical $navbar-padding-horizontal
  font-size $font-size-large
  line-height $line-height-computed
  height $navbar-height

  &:hover,
  &:focus
    text-decoration none

  > img
    display block

  @media (min-width $grid-float-breakpoint)
    .navbar > .container &,
    .navbar > .container-fluid &
      margin-left (-($navbar-padding-horizontal))


// Navbar toggle
//
// Custom button for toggling the `.navbar-collapse`, powered by the collapse
// JavaScript plugin.

.navbar-toggle
  position relative
  float right
  margin-right $navbar-padding-horizontal
  padding 9px 10px
  navbar-vertical-align(34px)
  background-color transparent
  background-image none // Reset unusual Firefox-on-Android default style see https://github.com/necolas/normalize.css/issues/214
  border 1px solid transparent
  border-radius $border-radius-base

  // We remove the `outline` here, but later compensate by attaching `:hover`
  // styles to `:focus`.
  &:focus
    outline 0

  // Bars
  .icon-bar
    display block
    width 22px
    height 2px
    border-radius 1px
  .icon-bar + .icon-bar
    margin-top 4px

  @media (min-width $grid-float-breakpoint)
    display none


// Navbar nav links
//
// Builds on top of the `.nav` components with its own modifier class to make
// the nav the full height of the horizontal nav (above 768px).

.navbar-nav
  margin ($navbar-padding-vertical / 2) (-($navbar-padding-horizontal))

  > li > a
    padding-top 10px
    padding-bottom 10px
    line-height $line-height-computed

  @media (max-width $grid-float-breakpoint-max)
    // Dropdowns get custom display when collapsed
    .open .dropdown-menu
      position static
      float none
      width auto
      margin-top 0
      background-color transparent
      border 0
      box-shadow none
      > li > a,
      .dropdown-header
        padding 5px 15px 5px 25px
      > li > a
        line-height $line-height-computed
        &:hover,
        &:focus
          background-image none

  // Uncollapse the nav
  @media (min-width $grid-float-breakpoint)
    float left
    margin 0

    > li
      float left
      > a
        padding-top $navbar-padding-vertical
        padding-bottom $navbar-padding-vertical


// Navbar form
//
// Extension of the `.form-inline` with some extra flavor for optimum display in
// our navbars.

.navbar-form
  margin-left (-($navbar-padding-horizontal))
  margin-right (-($navbar-padding-horizontal))
  padding 10px $navbar-padding-horizontal
  border-top 1px solid transparent
  border-bottom 1px solid transparent
  box-shadow inset 0 1px 0 rgba(255, 255, 255, .1), 0 1px 0 rgba(255, 255, 255, .1)

  // Mixin behavior for optimum display
  @extend .form-inline

  .form-group
    @media (max-width $grid-float-breakpoint-max)
      margin-bottom 5px

      &:last-child
        margin-bottom 0

  // Vertically center in expanded, horizontal navbar
  navbar-vertical-align($input-height-base)

  // Undo 100% width for pull classes
  @media (min-width $grid-float-breakpoint)
    width auto
    border 0
    margin-left 0
    margin-right 0
    padding-top 0
    padding-bottom 0
    box-shadow none


// Dropdown menus

// Menu position and menu carets
.navbar-nav > li > .dropdown-menu
  margin-top 0
  border-top-radius(0)
// Menu position and menu caret support for dropups via extra dropup class
.navbar-fixed-bottom .navbar-nav > li > .dropdown-menu
  margin-bottom 0
  border-top-radius($navbar-border-radius)
  border-bottom-radius(0)


// Buttons in navbars
//
// Vertically center a button within a navbar (when *not* in a form).

.navbar-btn
  navbar-vertical-align($input-height-base)

  &.btn-sm
    navbar-vertical-align($input-height-small)
  &.btn-xs
    navbar-vertical-align(22)


// Text in navbars
//
// Add a class to make any element properly align itself vertically within the navbars.

.navbar-text
  navbar-vertical-align($line-height-computed)

  @media (min-width $grid-float-breakpoint)
    float left
    margin-left $navbar-padding-horizontal
    margin-right $navbar-padding-horizontal


// Component alignment
//
// Repurpose the pull utilities as their own navbar utilities to avoid specificity
// issues with parents and chaining. Only do this when the navbar is uncollapsed
// though so that navbar contents properly stack and align in mobile.
//
// Declared after the navbar components to ensure more specificity on the margins.

@media (min-width $grid-float-breakpoint)
  .navbar-left
    float left !important

  .navbar-right
    float right !important
    margin-right -($navbar-padding-horizontal)

    ~ .navbar-right
      margin-right 0


// Alternate navbars
// --------------------------------------------------

// Default navbar
.navbar-default
  background-color $navbar-default-bg
  border-color $navbar-default-border

  .navbar-brand
    color $navbar-default-brand-color

    &:hover,
    &:focus
      color $navbar-default-brand-hover-color
      background-color $navbar-default-brand-hover-bg

  .navbar-text
    color $navbar-default-color

  .navbar-nav
    > li > a
      color $navbar-default-link-color

      &:hover,
      &:focus
        color $navbar-default-link-hover-color
        background-color $navbar-default-link-hover-bg

    > .active > a
      &,
      &:hover,
      &:focus
        color $navbar-default-link-active-color
        background-color $navbar-default-link-active-bg

    > .disabled > a
      &,
      &:hover,
      &:focus
        color $navbar-default-link-disabled-color
        background-color $navbar-default-link-disabled-bg

  .navbar-toggle
    border-color $navbar-default-toggle-border-color

    &:hover,
    &:focus
      background-color $navbar-default-toggle-hover-bg
    .icon-bar
      background-color $navbar-default-toggle-icon-bar-bg

  .navbar-collapse,
  .navbar-form
    border-color $navbar-default-border

  // Dropdown menu items
  .navbar-nav
    // Remove background color from open dropdown
    > .open > a
      &,
      &:hover,
      &:focus
        background-color $navbar-default-link-active-bg
        color $navbar-default-link-active-color

    @media (max-width $grid-float-breakpoint-max)
      // Dropdowns get custom display when collapsed
      .open .dropdown-menu
        > li > a
          color $navbar-default-link-color
          &:hover,
          &:focus
            color $navbar-default-link-hover-color
            background-color $navbar-default-link-hover-bg
        > .active > a
          &,
          &:hover,
          &:focus
            color $navbar-default-link-active-color
            background-color $navbar-default-link-active-bg
        > .disabled > a
          &,
          &:hover,
          &:focus
            color $navbar-default-link-disabled-color
            background-color $navbar-default-link-disabled-bg


  // Links in navbars
  //
  // Add a class to ensure links outside the navbar nav are colored correctly.

  .navbar-link
    color $navbar-default-link-color

    &:hover
      color $navbar-default-link-hover-color

  .btn-link
    color $navbar-default-link-color

    &:hover,
    &:focus
      color $navbar-default-link-hover-color

    &[disabled],
    fieldset[disabled] &
      &:hover,
      &:focus
        color $navbar-default-link-disabled-color

// Inverse navbar

.navbar-inverse
  background-color $navbar-inverse-bg
  border-color $navbar-inverse-border

  .navbar-brand
    color $navbar-inverse-brand-color
    &:hover,
    &:focus
      color $navbar-inverse-brand-hover-color
      background-color $navbar-inverse-brand-hover-bg

  .navbar-text
    color $navbar-inverse-color

  .navbar-nav
    > li > a
      color $navbar-inverse-link-color

      &:hover,
      &:focus
        color $navbar-inverse-link-hover-color
        background-color $navbar-inverse-link-hover-bg

    > .active > a
      &,
      &:hover,
      &:focus
        color $navbar-inverse-link-active-color
        background-color $navbar-inverse-link-active-bg

    > .disabled > a
      &,
      &:hover,
      &:focus
        color $navbar-inverse-link-disabled-color
        background-color $navbar-inverse-link-disabled-bg

  // Darken the responsive nav toggle
  .navbar-toggle
    border-color $navbar-inverse-toggle-border-color

    &:hover,
    &:focus
      background-color $navbar-inverse-toggle-hover-bg
    .icon-bar
      background-color $navbar-inverse-toggle-icon-bar-bg

  .navbar-collapse,
  .navbar-form
    border-color darken($navbar-inverse-bg, 7)

  // Dropdowns
  .navbar-nav
    > .open > a
      &,
      &:hover,
      &:focus
        background-color $navbar-inverse-link-active-bg
        color $navbar-inverse-link-active-color

    @media (max-width $grid-float-breakpoint-max)
      // Dropdowns get custom display
      .open .dropdown-menu
        > .dropdown-header
          border-color $navbar-inverse-border

        .divider
          background-color $navbar-inverse-border

        > li > a
          color $navbar-inverse-link-color
          &:hover,
          &:focus
            color $navbar-inverse-link-hover-color
            background-color $navbar-inverse-link-hover-bg

        > .active > a
          &,
          &:hover,
          &:focus
            color $navbar-inverse-link-active-color
            background-color $navbar-inverse-link-active-bg

        > .disabled > a
          &,
          &:hover,
          &:focus
            color $navbar-inverse-link-disabled-color
            background-color $navbar-inverse-link-disabled-bg

  .navbar-link
    color $navbar-inverse-link-color

    &:hover
      color $navbar-inverse-link-hover-color

  .btn-link
    color $navbar-inverse-link-color

    &:hover,
    &:focus
      color $navbar-inverse-link-hover-color

    &[disabled],
    fieldset[disabled] &
      &:hover,
      &:focus
        color $navbar-inverse-link-disabled-color