jQuery(document).ready(function($) {

/*------------------------------------------------
            DECLARATIONS
------------------------------------------------*/

    var scroll                  = $(window).scrollTop();  
    var scrollup                = $('.backtotop');
    var primary_menu_toggle     = $('#masthead .menu-toggle');
    var top_menu_toggle         = $('#top-navigation .menu-toggle');
    var dropdown_toggle         = $('button.dropdown-toggle');
    var primary_nav_menu        = $('#masthead .main-navigation');
    
/*------------------------------------------------
            BACK TO TOP
------------------------------------------------*/

    $(window).scroll(function() {
        if ($(this).scrollTop() > 1) {
            scrollup.css({bottom:"25px"});
        } 
        else {
            scrollup.css({bottom:"-100px"});
        }
    });

    scrollup.click(function() {
        $('html, body').animate({scrollTop: '0px'}, 800);
        return false;
    });

/*------------------------------------------------
            MAIN NAVIGATION
------------------------------------------------*/

    primary_menu_toggle.click(function(){
        primary_nav_menu.slideToggle();
        $(this).toggleClass('active');
        $('.menu-overlay').toggleClass('active');
        $('#masthead .main-navigation').toggleClass('menu-open');
    });

    dropdown_toggle.click(function() {
        $(this).toggleClass('active');
        $(this).parent().find('.sub-menu').first().slideToggle();
        $('#primary-menu > li:last-child button.active').unbind('keydown');
    });

    $('.main-navigation ul li.search-menu a').click(function(event) {
        event.preventDefault();
        $(this).toggleClass('search-active');
        $('.main-navigation #search').fadeToggle();
        $('.main-navigation .search-field').focus();
    });

    $(document).keyup(function(e) {
        if (e.keyCode === 27) {
            $('.main-navigation ul li.search-menu a').removeClass('search-active');
            $('.main-navigation #search').fadeOut();
        }
    });

    $(window).scroll(function() {
        if ($(this).scrollTop() > 1) {
            $('#masthead').addClass('nav-shrink');
        } 
        else {
            $('#masthead').removeClass('nav-shrink');
        }
    });

    $(document).click(function (e) {
        var container = $("#masthead");
        if (!container.is(e.target) && container.has(e.target).length === 0) {
            primary_nav_menu.slideUp();
            $(this).removeClass('active');
            $('.menu-overlay').removeClass('active');
            $('#masthead .main-navigation').removeClass('menu-open');
            $('.menu-toggle').removeClass('active');

            $(this).removeClass('active');
            $('.menu-overlay').removeClass('active');
        }
    });

/*------------------------------------------------
            PACKERY
------------------------------------------------*/
$('.grid').packery({
    itemSelector: '.grid-item'
});

/*------------------------------------------------
            Keyboard Navigation
------------------------------------------------*/
if( $(window).width() < 1024 ) {
    $('#primary-menu').find("li").last().bind( 'keydown', function(e) {
        if( e.which === 9 ) {
            e.preventDefault();
            $('#masthead').find('.menu-toggle').focus();
        }
    });

    $('#primary-menu > li:last-child button:not(.active)').bind( 'keydown', function(e) {
        if( e.which === 9 ) {
            e.preventDefault();
            $('#masthead').find('.menu-toggle').focus();
        }
    });
}
else {
    $('#primary-menu').find("li").unbind('keydown');
}

$(window).resize(function() {
    if( $(window).width() < 1024 ) {
        $('#primary-menu').find("li").last().bind( 'keydown', function(e) {
            if( e.which === 9 ) {
                e.preventDefault();
                $('#masthead').find('.menu-toggle').focus();
            }
        });

        $('#primary-menu > li:last-child button:not(.active)').bind( 'keydown', function(e) {
            if( e.which === 9 ) {
                e.preventDefault();
                $('#masthead').find('.menu-toggle').focus();
            }
        });
    }
    else {
        $('#primary-menu').find("li").unbind('keydown');
    }
});

primary_menu_toggle.on('keydown', function (e) {
    var tabKey    = e.keyCode === 9;
    var shiftKey  = e.shiftKey;

    if( primary_menu_toggle.hasClass('active') ) {
        if ( shiftKey && tabKey ) {
            e.preventDefault();
            primary_nav_menu.slideUp();
            $('.main-navigation').removeClass('menu-open');
            $('.menu-overlay').removeClass('active');
            primary_menu_toggle.removeClass('active');
        };
    }
});

/*------------------------------------------------
                END JQUERY
------------------------------------------------*/

});