.header {
    width: 100%;
    height: 56px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    /*background: #333;*/
    background: #1c5568;
    color: #FFF;
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
}

.header__menu-toggle {
    background: none;
    border: none;
    color: #FFF;
}

.side-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.side-nav--visible {
    pointer-events: auto;
}

.side-nav::before {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity 0.3s cubic-bezier(0, 0, 0.3, 1);
}

.side-nav__container {
    position: relative;
    width: 90%;
    max-width: 400px;
    background: #FFF;
    height: 100%;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.4);
    transform: translateX(-102%);
    display: flex;
    flex-direction: column;
}

.side-nav--visible .side-nav__container {
    transition: transform 0.13s cubic-bezier(0, 0, 0.3, 1);
}

.side-nav--visible .side-nav--animatable .side-nav__container {
    transition: transform 0.33s cubic-bezier(0, 0, 0.3, 1);
}

.side-nav--visible::before {
    opacity: 1;
}

.side-nav--visible .side-nav__container {
    transform: none;
}

.side-nav__hide {
    position: absolute;
    left: 16px;
    top: 16px;
    background: none;
    border: none;
    color: #FFF;
}

.side-nav__header {
    height: 110px;
    background: #1c5568;
    color: #FFF;
    display: flex;
    padding: 16px;
    font-size: 25px;
    align-items: center;
    flex-direction: column;
}

    .side-nav__header span {
        align-self: flex-end;
    }

.side-nav__content {
    flex: 1;
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

    .side-nav__content li {
        height: 65px;
        line-height: 65px;
        padding: 0 16px;
        vertical-align: middle;
        font-size: 16px;
        cursor: pointer;
    }

        .side-nav__content li:hover {
            background: #CCC;
        }