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

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

.navbar {
  font-size: floor(@component-font-size-base * 1.067); // ~16px
  min-height: @navbar-height-base;
  margin-bottom: @navbar-margin-bottom;
  border: none;
  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 {
  @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 {
  box-shadow: none;
  padding-right: 21px;
  padding-left: 21px;  

  @media (min-width: @grid-float-breakpoint) {
    // Account for first and last children spacing
    .navbar-nav.navbar-left:first-child {
      margin-left: -21px;
      
      > li:first-child a {
        .border-left-radius(@navbar-border-radius);
      }
    }
    .navbar-nav.navbar-right:last-child {
      margin-right: -21px;
      
      .navbar > .container & {
        margin-right: -36px;
      }
      > .dropdown:last-child > a {
        border-radius: 0 @navbar-border-radius @navbar-border-radius 0;
      }      
    }  
    .navbar-form.navbar-right:last-child {
      margin-right: -17px;

      .navbar-fixed-top &,
      .navbar-fixed-bottom & {
        margin-right: 0;
      }
    }     
  }
  @media (max-width: @grid-float-breakpoint-max) {
    .navbar-nav.navbar-right:last-child {
      margin-bottom: 3px;
    }
  }
}  

// 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: -21px;
    margin-left:  -21px;

    @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;
  border-radius: 0;
}

// Fix the top/bottom navbars when screen real estate supports it
.navbar-fixed-top,
.navbar-fixed-bottom {
  z-index: @zindex-navbar-fixed;
  border-radius: 0;
}
.navbar-fixed-top {
  border-width: 0;
}
.navbar-fixed-bottom {
  margin-bottom: 0; // override .navbar defaults
  border-width: 0;
}

// Brand/project name

.navbar-brand {
  font-size: floor(@component-font-size-base * 1.6); // ~24px
  line-height: 1.01;  // ~25px
  font-weight: 700;
  padding: ((@navbar-height-base - 25px) / 2) 21px;
  
  > [class*="fui-"] {
    font-size: floor(@component-font-size-base * 1.267); // ~19px
    line-height: 1.263; // ~24px
    vertical-align: top;
  }
  
  @media (min-width: @grid-float-breakpoint) {
    .navbar > .container &,
    .navbar > .container-fluid & {
      margin-left: -21px;
    }
  }
}

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

.navbar-toggle {
  border: none;
  color: @brand-primary;
  margin: 0 0 0 21px;
  padding: 0 21px;
  height: @navbar-height-base;
  line-height: @navbar-height-base;

  &:before {
    color: @link-color;
    content: "\e00c";
    font-family: "Flat-UI-Icons";
    font-size: floor(@component-font-size-base * 1.467); // ~22px
    font-style: normal;
    font-weight: normal;
    -webkit-font-smoothing: antialiased;
    .transition(color .25s linear);
  }
  &:hover,
  &:focus {
    outline: none;
  
    &:before {
      color: @link-hover-color;
    }
  }
  .icon-bar {
    display: none;
  }
  
  @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: 0;
  
  > li > a {
    font-size: floor(@component-font-size-base * 1.067); // ~16px
    padding: ((@navbar-height-base - 23px) / 2) 21px;
    line-height: 23px;
    font-weight: 700;
  }
  
  .dropdown-toggle .caret {
    border-top-color: @link-color;
    border-bottom-color: @link-color;
    border-width: 8px 6px 0;
    margin-left: 12px;
  }
  > li > a:hover,
  > li > a:focus,
  .open > a:focus,
  .open > a:hover {
    background-color: transparent;
    
    .caret {
      border-top-color: @link-hover-color;
      border-bottom-color: @link-hover-color;
    }
  }
  
  [class^="fui-"] {
    line-height: 20px;
    position: relative;
    top: 1px;
  }
  .visible-sm,
  .visible-xs {
    > [class^="fui-"] {
      margin-left: 12px;
    }
  }
  
  @media (max-width: @grid-float-breakpoint-max) {
    margin: 0 -21px;
    
    // Dropdowns get custom display when collapsed
    .open .dropdown-menu {      
      > li > a,
      .dropdown-header {
        padding: 7px 15px 7px 31px !important;
      }
      > li > a {
        line-height: 23px;
      }
    }
    > li > a {
      padding-top: 7px;
      padding-bottom: 7px;
    }
  }
}

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

.navbar-input {
  .input-size(@input-height-small; 5px; 10px; @input-font-size-small; @navbar-input-line-height);
}

.navbar-form {
  .box-shadow(none);
  margin-top: 0;
  margin-bottom: 0;
  padding-right: 19px;
  padding-left: 19px;

  // Vertically center in expanded, horizontal navbar
  .navbar-vertical-align(@input-height-small);

  .form-group {
    @media (max-width: @grid-float-breakpoint-max) {
      margin-bottom: 5px;
    }
  }
  
  @media (max-width: @grid-float-breakpoint-max) {
    margin: 3px -21px;
    width: auto;
  }
  
  .navbar-nav + &.navbar-left,
  &.navbar-right:last-child { // Width fix for Webkit and IE11
    @media (min-width: @grid-float-breakpoint) {
      width: 260px; 
    }
  }
  
  // Controls sizing
  .form-control,
  .input-group-addon,
  .btn { .navbar-input(); }
  
  // Reset rounded corners
  .form-controls-corners-reset();
  
  .form-control {
    font-size: @component-font-size-base;
    border-radius: 5px;
    display: table-cell;
  }
  .form-group + .btn {
    font-size: @component-font-size-base;
    border-radius: 5px;
    margin-left: 4px;
  }

  @media (max-width: @grid-float-breakpoint-max) {
    .form-group {
      margin-bottom: 0;
      
      & + .btn {
        margin-top: 9px;
        margin-left: 0;
      }
    }
  }
}

// Dropdown menus

// Menu position and menu carets
.navbar-nav > li {
  > .dropdown-menu {
    min-width: 100%;
    border-radius: @border-radius-base;   
    
    @media (max-width: @grid-float-breakpoint-max) {
      .transition(all 0s);
      display: none;
    }
  }
  &.open > .dropdown-menu {
    @media (max-width: @grid-float-breakpoint-max) {
      margin-top: 0 !important;
      display: block;
    }   
  }
} 

// Menu position and menu caret support for dropups via extra dropup class
.navbar-fixed-bottom .navbar-nav > li > .dropdown-menu {
  .border-bottom-radius(@border-radius-base);
}

.navbar-nav > .open > .dropdown-toggle,
.navbar-nav > .open > .dropdown-toggle:focus,
.navbar-nav > .open > .dropdown-toggle:hover {
  background-color: transparent;
}

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

.navbar-text {
  font-size: floor(@component-font-size-base * 1.067); // ~16px
  line-height: 1.438; // ~23px
  color: @brand-primary;
  margin-top: 0;
  margin-bottom: 0;
  
  .navbar-vertical-align(23px, @navbar-height-base);

  @media (min-width: @grid-float-breakpoint) {
    margin-left: 21px;
    margin-right: 21px;

    // Outdent the form if last child to line up with content down the page
    &.navbar-right:last-child {
      margin-right: 0;
    }
  }
}

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

.navbar-btn {
  margin-top: ((@navbar-height-base - @input-height-base) / 2);
  margin-bottom: ((@navbar-height-base - @input-height-base) / 2);

  &.btn-sm {
    margin-top: ((@navbar-height-base - @input-height-small) / 2);
    margin-bottom: ((@navbar-height-base - @input-height-small) / 2) - 1;
  }
  &.btn-xs {
    margin-top: ((@navbar-height-base - 25) / 2);
    margin-bottom: ((@navbar-height-base - 25) / 2);
  }
}

// Unread icon
//
.navbar-unread,
.navbar-new {
  font-family: @font-family-base;
  background-color: @brand-secondary;
  border-radius: 50%;
  color: @inverse;
  font-size: 0;
  font-weight: 700;
  height: 6px;
  line-height: 1;
  position: absolute;
  right: 12px;
  text-align: center;
  top: 35%;
  width: 6px;
  z-index: 10;
  
  @media (max-width: @grid-float-breakpoint) {
    position: static;
    float: right;
    margin: 0 0 0 10px;
  }

  .active & {
    background-color: @inverse;
    display: none;
  }
}

.navbar-new {
  background-color: @brand-danger;
  font-size: 12px;
  height: 18px;
  line-height: 17px;
  margin: -6px -10px;
  min-width: 18px;
  padding: 0 1px;
  width: auto;
  -webkit-font-smoothing: subpixel-antialiased;
}

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

// Default navbar
.navbar-default {
  background-color: @navbar-default-bg;
  
  .navbar-brand {
    color: @navbar-default-brand-color;
    &:hover,
    &:focus {
      color: @navbar-default-brand-hover-color;
      background-color: @navbar-default-brand-hover-bg;
    }
  }
  
  .navbar-toggle {
    &:before {
      color: @navbar-default-toggle-color;
    }   
    &:hover,
    &:focus {
      background-color: transparent;
      
      &:before {
        color: @navbar-default-toggle-hover-color;
      }
    }
  }
  
  .navbar-collapse,
  .navbar-form {
    border-color: @navbar-default-form-border;
    border-width: 2px;
  }
  
  .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;
      }
    }
  }
  
  // Dropdown menu items and carets
  .navbar-nav {
    // Caret text color
    > .dropdown > a .caret {
      border-top-color: @navbar-default-caret-color;
      border-bottom-color: @navbar-default-caret-color;
    }
    // Caret should match text color on active
    > .active > a .caret {
      border-top-color: @navbar-default-caret-active-color;
      border-bottom-color: @navbar-default-caret-active-color;
    }
    // Caret should match text color on hover
    > .dropdown > a:hover .caret,
    > .dropdown > a:focus .caret {
      border-top-color: @navbar-default-caret-hover-color;
      border-bottom-color: @navbar-default-caret-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-caret-active-color;
          border-bottom-color: @navbar-default-caret-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;
          }
        }
      }
    }
  }
  
  .navbar-form {
    .form-control {
      border-color: transparent;
      .placeholder(@navbar-default-form-placeholder);
      
      &:focus {
        border-color: @brand-secondary;
         color: @brand-secondary;
      }
    }
    .input-group-btn .btn {
      border-color: transparent;
      color: @navbar-default-form-icon;
    }
    .input-group.focus {
      .form-control,
      .input-group-btn .btn {
         border-color: @brand-secondary;
         color: @brand-secondary;
      }     
    }
  }
  
  .navbar-text {
    color: @brand-primary;
    
    a {
      color: @navbar-default-link-color;
      
      &:hover,
      &:focus {
        color: @navbar-default-link-hover-color;
      }
    }
  }
}

// Inverse navbar
.navbar-inverse {
  background-color: @navbar-inverse-bg;
  
  .navbar-brand {
    color: @navbar-inverse-brand-color;   
    &:hover,
    &:focus {
      color: @navbar-inverse-brand-hover-color;
      background-color: @navbar-inverse-brand-hover-bg;
    }
  }
  
  .navbar-toggle {
    &:before {
      color: @navbar-inverse-toggle-color;
    }   
    &:hover,
    &:focus {
      background-color: transparent;
      
      &:before {
        color: @navbar-inverse-toggle-hover-color;
      }
    }
  }
  
  .navbar-collapse {
    border-color: @navbar-inverse-form-border;
    border-width: 2px;
  }
  
  .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;
      }
    }
  }
  
  // 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-inverse-caret-hover-color;
      border-bottom-color: @navbar-inverse-caret-hover-color;
    }

    // Remove background color from open dropdown
    > .open > a {
      &,
      &:hover,
      &:focus {
        background-color: @navbar-inverse-link-active-bg;
        color: @navbar-inverse-link-active-color;
        border-left-color: transparent;        
        .caret {
          border-top-color: @navbar-inverse-link-active-color;
          border-bottom-color: @navbar-inverse-link-active-color;
        }
      }
    }
    > .dropdown > a .caret {
      border-top-color: @navbar-inverse-caret-color;
      border-bottom-color: @navbar-inverse-caret-color;
    }    
    
    > .open {
      > .dropdown-arrow {
        border-top-color: @navbar-inverse-dropdown-arrow;
        border-bottom-color: @navbar-inverse-dropdown-arrow;
      }
      > .dropdown-menu {
        background-color: @navbar-inverse-dropdown-bg;
        padding: 3px 4px;
        
        > li > a {
          color: @navbar-inverse-dropdown-link-color;
          border-radius: @border-radius-base;
          padding: 6px 9px;
          
          &:hover,
          &:focus {
            color: @navbar-inverse-dropdown-link-hover-color;
            background-color: @navbar-inverse-dropdown-link-hover-bg;
          }
        }   
        > .divider {
          background-color: @navbar-inverse-divider;
          height: 2px;
          margin-left: -4px;
          margin-right: -4px;
        }
      }
    }

    @media (max-width: @grid-float-breakpoint-max) {
       > li > a {
         border-left-width: 0;
       }
      // Dropdowns get custom display when collapsed
      .open .dropdown-menu {
        > 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;
          }
        }
      }
      // Custom background for dividers when collapsed
      .dropdown-menu .divider {
        background-color: @navbar-inverse-divider;
      }
    }
  }
  
  .navbar-form {    
    .form-control {
      color: @navbar-inverse-form-placeholder;
      border-color: transparent;
      background-color: @navbar-inverse-form-bg;
      .placeholder(@navbar-inverse-form-placeholder);
      
      &:focus {
        border-color: @brand-secondary;
         color: @brand-secondary;
      }
    }
    .btn {
      .button-variant(@btn-default-color, @brand-secondary, @btn-primary-hover-bg, @btn-primary-active-bg);
    }
    .input-group-btn .btn {
      border-color: transparent;
      background-color: @navbar-inverse-form-bg;
      color: @navbar-inverse-form-icon;
    }
    .input-group.focus {
      .form-control,
      .input-group-btn .btn {
         border-color: @brand-secondary;
         color: @brand-secondary;
      }     
    }
    
    @media (max-width: @grid-float-breakpoint-max) {
      border-color: @navbar-inverse-form-border;
      border-width: 2px 0;
    }
  }
  
  .navbar-text {
    color: @inverse;
    
    a {
      color: @navbar-inverse-link-color;
      
      &:hover,
      &:focus {
        color: @navbar-inverse-link-hover-color;
      }
    }
  }
  
  .navbar-btn {
    .button-variant(@btn-default-color, @brand-secondary, @btn-primary-hover-bg, @btn-primary-active-bg);
  }
}

// Embossed navbar
.navbar-embossed {
  @media (min-width: @grid-float-breakpoint) {
    > .navbar-collapse {
      border-radius: @navbar-border-radius;
      .box-shadow(inset 0 -2px 0 fade(black, 15%));
    }
    &.navbar-inverse .navbar-nav {
      .active > a,
      .open > a {
        .box-shadow(inset 0 -2px 0 fade(black, 15%));
      }
    }
  }
}

// Large navbar
.navbar-lg {
  min-height: @navbar-height-large;
  
  .navbar-brand {
    line-height: 1;
    padding-top: ((@navbar-height-large - 24px) / 2);
    padding-bottom: ((@navbar-height-large - 24px) / 2);
  
    > [class*="fui-"] {
      font-size: floor(@component-font-size-base * 1.6); // ~24px
      line-height: 1; 
    }
  }
  
  .navbar-nav {
    > li > a {
      font-size: @component-font-size-base;
      line-height: 1.6;
      
      @media (min-width: @grid-float-breakpoint) {
        padding-top: ((@navbar-height-large - 24px) / 2);
        padding-bottom: ((@navbar-height-large - 24px) / 2);
      }
    }   
  }
  
  .navbar-toggle {
    height: @navbar-height-large;
    line-height: @navbar-height-large;
  }
  
  .navbar-form {
    .navbar-vertical-align(@input-height-small; @navbar-height-large);
  }
  
  .navbar-text {
    .navbar-vertical-align(23px; @navbar-height-large);
  }
  
  .navbar-btn {
    margin-top: ((@navbar-height-large - @input-height-base) / 2);
    margin-bottom: ((@navbar-height-large - @input-height-base) / 2);
    
    &.btn-sm {
      margin-top: ((@navbar-height-large - @input-height-small) / 2);
      margin-bottom: ((@navbar-height-large - @input-height-small) / 2);
    }
    &.btn-xs {
      margin-top: ((@navbar-height-large - 25px) / 2);
      margin-bottom: ((@navbar-height-large - 25px) / 2);
    }
  }
}