// Name:            Navbar
// Description:     Component to create horizontal navigation bars
//
// Component:       `uk-navbar`
//
// Sub-objects:     `uk-navbar-container`
//                  `uk-navbar-left`
//                  `uk-navbar-right`
//                  `uk-navbar-center`
//                  `uk-navbar-center-left`
//                  `uk-navbar-center-right`
//                  `uk-navbar-nav`
//                  `uk-navbar-item`
//                  `uk-navbar-toggle`
//                  `uk-navbar-subtitle`
//                  `uk-navbar-dropbar`
//
// Adopted:         `uk-navbar-dropdown` + Modifiers
//                  `uk-navbar-dropdown-nav`
//                  `uk-navbar-dropdown-grid`
//                  `uk-navbar-toggle-icon`
//
// Modifiers:       `uk-navbar-transparent`
//                  `uk-navbar-sticky`
//                  `uk-navbar-dropdown-stack`
//
// States:          `uk-active`
//                  `uk-parent`
//                  `uk-open`
//
//
// ========================================================================


// Variables
// ========================================================================

$navbar-background:                              $global-muted-background !default;
$navbar-color-mode:                              none !default;

$navbar-nav-item-height:                         80px !default;
$navbar-nav-item-padding-horizontal:             15px !default;
$navbar-nav-item-color:                          $global-muted-color !default;
$navbar-nav-item-font-size:                      $global-font-size !default;
$navbar-nav-item-font-family:                    $global-font-family !default;
$navbar-nav-item-hover-color:                    $global-color !default;
$navbar-nav-item-onclick-color:                  $global-emphasis-color !default;
$navbar-nav-item-active-color:                   $global-emphasis-color !default;

$navbar-item-color:                              $global-color !default;

$navbar-toggle-color:                            $global-muted-color !default;
$navbar-toggle-hover-color:                      $global-color !default;

$navbar-subtitle-font-size:                      $global-small-font-size !default;

$navbar-dropdown-z-index:                        $global-z-index + 20 !default;
$navbar-dropdown-width:                          200px !default;
$navbar-dropdown-margin:                         0 !default;
$navbar-dropdown-padding:                        15px !default;
$navbar-dropdown-background:                     $global-muted-background !default;
$navbar-dropdown-color:                          $global-color !default;
$navbar-dropdown-grid-gutter-horizontal:         $global-gutter !default;
$navbar-dropdown-grid-gutter-vertical:           $navbar-dropdown-grid-gutter-horizontal !default;

$navbar-dropdown-dropbar-margin-top:             0 !default;
$navbar-dropdown-dropbar-margin-bottom:          $navbar-dropdown-dropbar-margin-top !default;

$navbar-dropdown-nav-item-color:                 $global-muted-color !default;
$navbar-dropdown-nav-item-hover-color:           $global-color !default;
$navbar-dropdown-nav-item-active-color:          $global-emphasis-color !default;
$navbar-dropdown-nav-header-color:               $global-emphasis-color !default;
$navbar-dropdown-nav-divider-border-width:       $global-border-width !default;
$navbar-dropdown-nav-divider-border:             $global-border !default;
$navbar-dropdown-nav-sublist-item-color:         $global-muted-color !default;
$navbar-dropdown-nav-sublist-item-hover-color:   $global-color !default;

$navbar-dropbar-background:                      $navbar-dropdown-background !default;
$navbar-dropbar-z-index:                         $global-z-index - 20 !default;


/* ========================================================================
   Component: Navbar
 ========================================================================== */

/*
 * 1. Create position context to center navbar group
 */

.uk-navbar {
    display: flex;
    /* 1 */
    position: relative;
    @if(mixin-exists(hook-navbar)) {@include hook-navbar();}
}


/* Container
 ========================================================================== */

.uk-navbar-container:not(.uk-navbar-transparent) {
    background: $navbar-background;
    @if(mixin-exists(hook-navbar-container)) {@include hook-navbar-container();}
}

// Color Mode
@if ( $navbar-color-mode == light ) { .uk-navbar-container:not(.uk-navbar-transparent) { @extend .uk-light !optional;} }
@if ( $navbar-color-mode == dark ) { .uk-navbar-container:not(.uk-navbar-transparent) { @extend .uk-dark !optional;} }

/*
 * Remove pseudo elements created by micro clearfix as precaution (if Container component is used)
 */

.uk-navbar-container > ::before,
.uk-navbar-container > ::after { display: none !important; }


/* Groups
 ========================================================================== */

/*
 * 1. Align navs and items vertically if they have a different height
 * 2. Note: IE 11 requires an extra `div` which affects the center selector
 */

.uk-navbar-left,
.uk-navbar-right,
// 2. [class*='uk-navbar-center'],
.uk-navbar-center,
.uk-navbar-center-left > *,
.uk-navbar-center-right > * {
    display: flex;
    /* 1 */
    align-items: center;
}

/*
 * Horizontal alignment
 * 1. Create position context for centered navbar with sub groups (left/right)
 * 2. Needed for dropdowns because a new position context is created
 *    `z-index` must be smaller than off-canvas
 * 3. Fix text wrapping if the centered section is larger than 50% of the navbar
 * 4. Align sub groups for centered navbar
 */

.uk-navbar-right { margin-left: auto; }

.uk-navbar-center:only-child {
    margin-left: auto;
    margin-right: auto;
    /* 1 */
    position: relative;
}

.uk-navbar-center:not(:only-child) {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    /* 2 */
    z-index: $global-z-index - 10;
}

/* 3 */
.uk-navbar-center:not(:only-child) .uk-navbar-nav > li > a,
.uk-navbar-center:not(:only-child) .uk-navbar-item,
.uk-navbar-center:not(:only-child) .uk-navbar-toggle { white-space: nowrap; }

/* 4 */
.uk-navbar-center-left,
.uk-navbar-center-right {
   position: absolute;
   top: 0;
}

.uk-navbar-center-left { right: 100%; }
.uk-navbar-center-right { left: 100%; }

[class*='uk-navbar-center-'] .uk-navbar-nav > li > a,
[class*='uk-navbar-center-'] .uk-navbar-item,
[class*='uk-navbar-center-'] .uk-navbar-toggle { white-space: nowrap; }


/* Nav
 ========================================================================== */

/*
 * 1. Reset list
 */

.uk-navbar-nav {
    display: flex;
    /* 1 */
    margin: 0;
    padding: 0;
    list-style: none;
}

/*
 * Allow items to wrap into the next line
 * Only not `absolute` positioned groups
 */

.uk-navbar-left,
.uk-navbar-right,
.uk-navbar-center:only-child { flex-wrap: wrap; }

/*
 * Items
 * 1. Center content vertically and horizontally
 * 2. Dimensions
 * 3. Style
 * 4. Required for `a`
 */

.uk-navbar-nav > li > a,    // Nav item
.uk-navbar-item,            // Content item
.uk-navbar-toggle {         // Clickable item
    /* 1 */
    display: flex;
    justify-content: center;
    align-items: center;
    /* 2 */
    box-sizing: border-box;
    min-height: $navbar-nav-item-height;
    padding: 0 $navbar-nav-item-padding-horizontal;
    /* 3 */
    font-size: $navbar-nav-item-font-size;
    font-family: $navbar-nav-item-font-family;
    /* 4 */
    text-decoration: none;
}

/*
 * Nav items
 */

.uk-navbar-nav > li > a {
    color: $navbar-nav-item-color;
    @if(mixin-exists(hook-navbar-nav-item)) {@include hook-navbar-nav-item();}
}

/*
 * Hover
 * Apply hover style also to focus state and if dropdown is opened
 */

.uk-navbar-nav > li:hover > a,
.uk-navbar-nav > li > a:focus,
.uk-navbar-nav > li > a.uk-open {
    color: $navbar-nav-item-hover-color;
    outline: none;
    @if(mixin-exists(hook-navbar-nav-item-hover)) {@include hook-navbar-nav-item-hover();}
}

/* OnClick */
.uk-navbar-nav > li > a:active {
    color: $navbar-nav-item-onclick-color;
    @if(mixin-exists(hook-navbar-nav-item-onclick)) {@include hook-navbar-nav-item-onclick();}
}

/* Active */
.uk-navbar-nav > li.uk-active > a {
    color: $navbar-nav-item-active-color;
    @if(mixin-exists(hook-navbar-nav-item-active)) {@include hook-navbar-nav-item-active();}
}


/* Item
 ========================================================================== */

.uk-navbar-item {
    color: $navbar-item-color;
    @if(mixin-exists(hook-navbar-item)) {@include hook-navbar-item();}
}


/* Toggle
 ========================================================================== */

.uk-navbar-toggle {
    color: $navbar-toggle-color;
    @if(mixin-exists(hook-navbar-toggle)) {@include hook-navbar-toggle();}
}

.uk-navbar-toggle:hover,
.uk-navbar-toggle:focus,
.uk-navbar-toggle.uk-open {
    color: $navbar-toggle-hover-color;
    outline: none;
    text-decoration: none;
    @if(mixin-exists(hook-navbar-toggle-hover)) {@include hook-navbar-toggle-hover();}
}

/*
 * Icon
 * Adopts `uk-icon`
 */

.uk-navbar-toggle-icon {
    @if(mixin-exists(hook-navbar-toggle-icon)) {@include hook-navbar-toggle-icon();}
}

/* Hover + Focus */
:hover > .uk-navbar-toggle-icon,
:focus > .uk-navbar-toggle-icon {
    @if(mixin-exists(hook-navbar-toggle-icon-hover)) {@include hook-navbar-toggle-icon-hover();}
}


/* Subtitle
 ========================================================================== */

.uk-navbar-subtitle {
    font-size: $navbar-subtitle-font-size;
    @if(mixin-exists(hook-navbar-subtitle)) {@include hook-navbar-subtitle();}
}


/* Style modifiers
 ========================================================================== */

.uk-navbar-transparent {
    @if(mixin-exists(hook-navbar-transparent)) {@include hook-navbar-transparent();}
}

.uk-navbar-sticky {
    @if(mixin-exists(hook-navbar-sticky)) {@include hook-navbar-sticky();}
}


/* Dropdown
 ========================================================================== */

/*
 * Adopts `uk-dropdown`
 * 1. Hide by default
 * 2. Set position
 * 3. Set a default width
 * 4. Style
 */

.uk-navbar-dropdown {
    /* 1 */
    display: none;
    /* 2 */
    position: absolute;
    z-index: $navbar-dropdown-z-index;
    /* 3 */
    box-sizing: border-box;
    width: $navbar-dropdown-width;
    /* 4 */
    padding: $navbar-dropdown-padding;
    background: $navbar-dropdown-background;
    color: $navbar-dropdown-color;
    @if(mixin-exists(hook-navbar-dropdown)) {@include hook-navbar-dropdown();}
}

/* Show */
.uk-navbar-dropdown.uk-open { display: block; }

/*
 * Direction / Alignment modifiers
 */

/* Direction */
[class*='uk-navbar-dropdown-top'] { margin-top: (-$navbar-dropdown-margin); }
[class*='uk-navbar-dropdown-bottom'] { margin-top: $navbar-dropdown-margin; }
[class*='uk-navbar-dropdown-left'] { margin-left: (-$navbar-dropdown-margin); }
[class*='uk-navbar-dropdown-right'] { margin-left: $navbar-dropdown-margin; }

/*
 * Grid
 * Adopts `uk-grid`
 */

/* Gutter Horizontal */
.uk-navbar-dropdown-grid { margin-left: (-$navbar-dropdown-grid-gutter-horizontal); }
.uk-navbar-dropdown-grid > * { padding-left: $navbar-dropdown-grid-gutter-horizontal; }

/* Gutter Vertical */
.uk-navbar-dropdown-grid > .uk-grid-margin { margin-top: $navbar-dropdown-grid-gutter-vertical; }

/* Stack */
.uk-navbar-dropdown-stack .uk-navbar-dropdown-grid > * { width: 100% !important; }

/*
 * Width modifier
 */

.uk-navbar-dropdown-width-2:not(.uk-navbar-dropdown-stack) { width: ($navbar-dropdown-width * 2); }
.uk-navbar-dropdown-width-3:not(.uk-navbar-dropdown-stack) { width: ($navbar-dropdown-width * 3); }
.uk-navbar-dropdown-width-4:not(.uk-navbar-dropdown-stack) { width: ($navbar-dropdown-width * 4); }
.uk-navbar-dropdown-width-5:not(.uk-navbar-dropdown-stack) { width: ($navbar-dropdown-width * 5); }

/*
 * Dropbar modifier
 */

.uk-navbar-dropdown-dropbar {
    margin-top: $navbar-dropdown-dropbar-margin-top;
    margin-bottom: $navbar-dropdown-dropbar-margin-bottom;
    @if(mixin-exists(hook-navbar-dropdown-dropbar)) {@include hook-navbar-dropdown-dropbar();}
}


/* Dropdown Nav
 * Adopts `uk-nav`
 ========================================================================== */

.uk-navbar-dropdown-nav {
    @if(mixin-exists(hook-navbar-dropdown-nav)) {@include hook-navbar-dropdown-nav();}
}

/*
 * Items
 */

.uk-navbar-dropdown-nav > li > a {
    color: $navbar-dropdown-nav-item-color;
    @if(mixin-exists(hook-navbar-dropdown-nav-item)) {@include hook-navbar-dropdown-nav-item();}
}

/* Hover + Focus */
.uk-navbar-dropdown-nav > li > a:hover,
.uk-navbar-dropdown-nav > li > a:focus {
    color: $navbar-dropdown-nav-item-hover-color;
    @if(mixin-exists(hook-navbar-dropdown-nav-item-hover)) {@include hook-navbar-dropdown-nav-item-hover();}
}

/* Active */
.uk-navbar-dropdown-nav > li.uk-active > a {
    color: $navbar-dropdown-nav-item-active-color;
    @if(mixin-exists(hook-navbar-dropdown-nav-item-active)) {@include hook-navbar-dropdown-nav-item-active();}
}

/*
 * Header
 */

.uk-navbar-dropdown-nav .uk-nav-header {
    color: $navbar-dropdown-nav-header-color;
    @if(mixin-exists(hook-navbar-dropdown-nav-header)) {@include hook-navbar-dropdown-nav-header();}
}

/*
 * Divider
 */

.uk-navbar-dropdown-nav .uk-nav-divider {
    border-top: $navbar-dropdown-nav-divider-border-width solid $navbar-dropdown-nav-divider-border;
    @if(mixin-exists(hook-navbar-dropdown-nav-divider)) {@include hook-navbar-dropdown-nav-divider();}
}

/*
 * Sublists
 */

.uk-navbar-dropdown-nav .uk-nav-sub a { color: $navbar-dropdown-nav-sublist-item-color; }

.uk-navbar-dropdown-nav .uk-nav-sub a:hover,
.uk-navbar-dropdown-nav .uk-nav-sub a:focus { color: $navbar-dropdown-nav-sublist-item-hover-color; }


/* Dropbar
 ========================================================================== */

.uk-navbar-dropbar {
    background: $navbar-dropbar-background;
    @if(mixin-exists(hook-navbar-dropbar)) {@include hook-navbar-dropbar();}
}

/*
 * Slide modifier
 */

.uk-navbar-dropbar-slide {
    position: absolute;
    z-index: $navbar-dropbar-z-index;
    left: 0;
    right: 0;
    @if(mixin-exists(hook-navbar-dropbar-slide)) {@include hook-navbar-dropbar-slide();}
}


// Hooks
// ========================================================================

@if(mixin-exists(hook-navbar-misc)) {@include hook-navbar-misc();}

// @mixin hook-navbar(){}
// @mixin hook-navbar-container(){}
// @mixin hook-navbar-nav-item(){}
// @mixin hook-navbar-nav-item-hover(){}
// @mixin hook-navbar-nav-item-onclick(){}
// @mixin hook-navbar-nav-item-active(){}
// @mixin hook-navbar-item(){}
// @mixin hook-navbar-toggle(){}
// @mixin hook-navbar-toggle-hover(){}
// @mixin hook-navbar-toggle-icon(){}
// @mixin hook-navbar-toggle-icon-hover(){}
// @mixin hook-navbar-subtitle(){}
// @mixin hook-navbar-transparent(){}
// @mixin hook-navbar-sticky(){}
// @mixin hook-navbar-dropdown(){}
// @mixin hook-navbar-dropdown-dropbar(){}
// @mixin hook-navbar-dropdown-nav(){}
// @mixin hook-navbar-dropdown-nav-item(){}
// @mixin hook-navbar-dropdown-nav-item-hover(){}
// @mixin hook-navbar-dropdown-nav-item-active(){}
// @mixin hook-navbar-dropdown-nav-header(){}
// @mixin hook-navbar-dropdown-nav-divider(){}
// @mixin hook-navbar-dropbar(){}
// @mixin hook-navbar-dropbar-slide(){}
// @mixin hook-navbar-misc(){}


// Inverse
// ========================================================================

$inverse-navbar-nav-item-color:                 $inverse-global-muted-color !default;
$inverse-navbar-nav-item-hover-color:           $inverse-global-color !default;
$inverse-navbar-nav-item-onclick-color:         $inverse-global-emphasis-color !default;
$inverse-navbar-nav-item-active-color:          $inverse-global-emphasis-color !default;
$inverse-navbar-item-color:                     $inverse-global-color !default;
$inverse-navbar-toggle-color:                   $inverse-global-muted-color !default;
$inverse-navbar-toggle-hover-color:             $inverse-global-color !default;



// @mixin hook-inverse-navbar-nav-item(){}
// @mixin hook-inverse-navbar-nav-item-hover(){}
// @mixin hook-inverse-navbar-nav-item-onclick(){}
// @mixin hook-inverse-navbar-nav-item-active(){}
// @mixin hook-inverse-navbar-item(){}
// @mixin hook-inverse-navbar-toggle(){}
// @mixin hook-inverse-navbar-toggle-hover(){}