<header>

<div class="search">
    <span class="icon icon-search"></span>
    <div class="search__inner">
        <input type="text" name="q" id="search-input" class="search__input" placeholder="Search Docs">
    </div>

    <div id="hits"></div>
</div>

<div class="burger">
    <div class="burger__control">
        <button type="button" class="btn btn-clean btn-open">
            <span class="icon icon-list-view"></span>
            <span class="burger-menu-label">MENU</span>
        </button>
    </div>

    <div class="big-menu">
        <div class="burger-control-wrapper">
            <div class="burger__control">
                <button type="button" class="btn btn-clean">
                    <span class="icon icon-list-view"></span>MENU
                </button>
            </div>
            <button type="button" class="btn btn-clean navbar-right btn-close">
                <span class="icon icon-cancel"></span>
            </button>
        </div>
        <div class="big-menu-inner">
            <div class="big-menu__list">
                {% for collection in site.data.chapters%}
                {% assign collectionName = collection[0] %}
                {% assign chapter = site.data.chapters[collectionName] %}
                <a class="big-menu__tit" href="/{{collectionName}}">
                    <i class="fa {{collection[1].fa-icon}}"></i>
                    {{collection[1].title}}
                </a>

                {% for section in chapter.sections %}
                <div class="big-menu__item">{{section.title}}</div>
                {% assign items = site[collectionName]| where: 'section', section.title | sort: 'order' %}
                <div class="big-menu__sub">
                    {% for item in items %}
                    <a class="big-menu__item" href="{{item.url}}">{{item.title}}</a>
                    {% endfor %}
                </div>
                {% endfor %}
                {% endfor %}
            </div>
        </div>
    </div>
    <div class="big-overlay"></div>
</div>

</header>