//
// Navbars
// --------------------------------------------------

// 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
  max-height: 340px
  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, 0.1)
  +clearfix
  -webkit-overflow-scrolling: touch
  &.in
    overflow-y: auto
  @media (min-width: $grid-float-breakpoint)
    width: auto
    border-top: 0
    box-shadow: none
    &.collapse
      display: block !important
      height: auto !important
      padding-bottom: 0
      // Override default setting
      overflow: visible !important
    &.in
      overflow-y: auto
    // Account for first and last children spacing
    .navbar-nav.navbar-left:first-child
      margin-left: -$navbar-padding-horizontal
    .navbar-nav.navbar-right:last-child
      margin-right: -$navbar-padding-horizontal
    .navbar-text:last-child
      margin-right: 0

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

.container > .navbar-header,
.container > .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
  &:hover,
  &:focus
    text-decoration: none
  @media (min-width: $grid-float-breakpoint)
    .navbar > .container &
      margin-left: -$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
  border: 1px solid transparent
  border-radius: $border-radius-base
  // 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 it's 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: $screen-xs-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-height - $line-height-computed) / 2
        padding-bottom: ($navbar-height - $line-height-computed) / 2

// 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.

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

// 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
  $shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.1)
  +box-shadow($shadow)
  // Mixin behavior for optimum display
  @extend .form-inline
  .form-group
    @media (max-width: $screen-xs-max)
      margin-bottom: 5px
  // Vertically center in expanded, horizontal navbar
  +navbar-vertical-align($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
  +border-bottom-radius(0)

// Right aligned menus need alt position

.navbar-nav.pull-right > li > .dropdown-menu,
.navbar-nav > li > .dropdown-menu.pull-right
  left: auto
  right: 0

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

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

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

.navbar-text
  float: left
  +navbar-vertical-align($line-height-computed)
  @media (min-width: $grid-float-breakpoint)
    margin-left: $navbar-padding-horizontal
    margin-right: $navbar-padding-horizontal

// 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 and carets
  .navbar-nav
    // Caret should match text color on hover
    > .dropdown > a:hover .caret,
    > .dropdown > a:focus .caret
      border-top-color: $navbar-default-link-hover-color
      border-bottom-color: $navbar-default-link-hover-color
    // Remove background color from open dropdown
    > .open > a
      &,
      &:hover,
      &:focus
        background-color: $navbar-default-link-active-bg
        color: $navbar-default-link-active-color
        .caret
          border-top-color: $navbar-default-link-active-color
          border-bottom-color: $navbar-default-link-active-color
    > .dropdown > a .caret
      border-top-color: $navbar-default-link-color
      border-bottom-color: $navbar-default-link-color
    @media (max-width: $screen-xs-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

// 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
    > .dropdown > a:hover .caret
      border-top-color: $navbar-inverse-link-hover-color
      border-bottom-color: $navbar-inverse-link-hover-color
    > .dropdown > a .caret
      border-top-color: $navbar-inverse-link-color
      border-bottom-color: $navbar-inverse-link-color
    > .open > a
      &,
      &:hover,
      &:focus
        .caret
          border-top-color: $navbar-inverse-link-active-color
          border-bottom-color: $navbar-inverse-link-active-color
    @media (max-width: $screen-xs-max)
      // Dropdowns get custom display
      .open .dropdown-menu
        > .dropdown-header
          border-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