.navigation-menu__bars,
.navigation-menu__bars::before,
.navigation-menu__bars::after {
    cursor: pointer;
    border-radius: 1px;
    height: 4px;
    width: 38px;
    background: #000;
    position: absolute;
    left: 0;
    top: 30%;
    display: block;
    -webkit-transition: all .3s;
    transition: all .3s;
}

.navigation-menu {
    background-color: transparent;
    height: 100%;
    position: fixed;
    width: 40%;
    transform: translateX(-100%);
    transition: transform .3s .3s;
    z-index: 3;
}

.navigation-menu::before {
    content: '';
    height: 400%;
    left: 50%;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 0;
}

.navigation-menu--open {
    transform: translateX(0);
    z-index: 3;
}

.navigation-menu--open .navigation-menu__bars {
    background-color: transparent;
}

.navigation-menu--open .navigation-menu__bars::before,
.navigation-menu--open .navigation-menu__bars::after {
    top: 0;
}

.navigation-menu--open .navigation-menu__bars::before {
    transform: rotate(45deg);
}

.navigation-menu--open .navigation-menu__bars::after {
    transform: rotate(-45deg);
}

.navigation-menu--open .menu-list__item {
    opacity: 1;
}

.navigation-menu--open .menu-list__item:nth-child(1) {
    transition-delay: 1s;
}

.navigation-menu--open .menu-list__item:nth-child(2) {
    transition-delay: 1.25s;
}

.navigation-menu--open .menu-list__item:nth-child(3) {
    transition-delay: 1.5s;
}

.navigation-menu--open .menu-list__item:nth-child(4) {
    transition-delay: 1.75s;
}

.navigation-menu--open .menu-list__item:nth-child(5) {
    transition-delay: 2s;
}

.navigation-menu--open .menu-list__item:nth-child(6) {
    transition-delay: 2.25s;
}

.navigation-menu--open .menu-list__item:nth-child(7) {
    transition-delay: 2.5s;
}

.navigation-menu--open .menu-list__item:nth-child(8) {
    transition-delay: 2.75s;
}

.navigation-menu--open .menu-list__item:nth-child(9) {
    transition-delay: 3s;
}

.navigation-menu--open .menu-list__item:nth-child(10) {
    transition-delay: 3.25s;
}

.navigation-menu--open .menu-list__item:nth-child(11) {
    transition-delay: 3.5s;
}

.navigation-menu--open .menu-list__item:nth-child(12) {
    transition-delay: 3.75s;
}

.navigation-menu__toggle {
    cursor: pointer;
    height: 30px;
    position: absolute;
    right: -40px;
    top: 6px;
    width: 30px;
    z-index: 9999;

}

.navigation-menu__bars::before,
.navigation-menu__bars::after {
    content: '';
}

.navigation-menu__bars::before {
    left: 0;
    top: -8px;
}

.navigation-menu__bars::after {
    left: 0;
    top: 8px;
}

.menu-list {
    padding: 10px;
    position: relative;
    z-index: 10;
    background: url(/img/podfon.jpg);
    height: 100vh;
    list-style-type: none;
}

.menu-list a {
    display: block;
    border-bottom: 1px solid red;
    padding: 7px 0px;
    color: #222;
    text-transform: uppercase;
    font-family: 'Oswald', sans-serif;

}


.menu-list__item {
    margin: 17px 0;
    opacity: 0;
    -webkit-transition: opacity .5s .5s;
    transition: opacity .5s .5s;
    border-bottom: 1px solid red;
}

@media only screen and (max-width: 700px) {
    .navigation-menu {
        background-color: #ffffff;
        min-width: 240px;
        width: 40%;
        z-index: 3;
        height: 100vh;
    }

    .navigation-menu::before {
        width: 110%;
    }
}

@media only screen and (max-width: 480px) {
    .navigation-menu {
        background-color: #ffffff;
        min-width: 240px;
        width: 40%;
        z-index: 3;
    }

    .navigation-menu::before {
        transform: translate(-50%, -50%) rotate(45deg);
    }
}