.mnu-btn {
    display: inline-flex;
    align-items: center;
    margin: 5px 0 0 0;
    padding: 10px 15px;
    color: #ffffff;
    font-family: sans-serif;
    font-size: 20px;
    border-radius: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
    cursor: pointer;
}

.mnu-toggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 25px;
    height: 20px;
    margin-right: 10px;
    overflow: hidden;
}

.mnu-toggle span {
    position: absolute;
    margin: 0;
    width: 25px;
    height: 4px;
    background: #ffffff;
    border-radius: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
    transition: 0.5s;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -ms-transition: 0.5s;
    -o-transition: 0.5s;
}

.mnu-toggle span:nth-child(1) {
    width: 25px;
    transform: translateY(-5px);
    -webkit-transform: translateY(-5px);
    -moz-transform: translateY(-5px);
    -ms-transform: translateY(-5px);
    -o-transform: translateY(-5px);
}

.mnu-btn.active .mnu-toggle span:nth-child(1) {
    width: 25px;
    transform: translateY(0) rotate(45deg);
    -webkit-transform: translateY(0) rotate(45deg);
    -moz-transform: translateY(0) rotate(45deg);
    -ms-transform: translateY(0) rotate(45deg);
    -o-transform: translateY(0) rotate(45deg);
}

.mnu-toggle span:nth-child(2) {
    width: 15px;
    right: 10px;
    transform: translateY(3px);
    -webkit-transform: translateY(3px);
    -moz-transform: translateY(3px);
    -ms-transform: translateY(3px);
    -o-transform: translateY(3px);
}

.mnu-btn.active .mnu-toggle span:nth-child(2) {
    width: 25px;
    right: 0;
    transform: translateY(0) rotate(315deg);
    -webkit-transform: translateY(0) rotate(315deg);
    -moz-transform: translateY(0) rotate(315deg);
    -ms-transform: translateY(0) rotate(315deg);
    -o-transform: translateY(0) rotate(315deg);
}

.all_width {
    display: none;
    position: absolute;
    top: 50px;
    left: 0;
    overflow-y: scroll;
    margin: 0 auto;
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
	z-index: 9999;
}

.all_width:hover {
    right: 0;
}

.all_width::-webkit-scrollbar {
    width: 0px;
}

.all_width__menu {
    margin: 0;
    padding: 0;
}

/* level-1 */
ul.all_width__item {
    display: block;
    margin: 0;
    padding: 0;
    height: 100%;
    overflow-y: scroll;
    box-sizing: border-box;
}

li.item-1-level {
    display: block;
    list-style-type: none;
    margin: 0;
    padding: 0;
    background: #ffffff;
    background-size: 200%;
    background-position-x: 200%;
    width: 300px;
    transition: .4s background-position-x;
    -webkit-transition: .4s background-position-x;
    -moz-transition: .4s background-position-x;
    -ms-transition: .4s background-position-x;
    -o-transition: .4s background-position-x;
    box-sizing: border-box;
}

li.item-1-level a {
    display: block;
    position: relative;
    margin: 0;
    color: #428bca;
    font-size: 16px;
    font-family: sans-serif;
    font-weight: 600;
    text-decoration: none;
    box-sizing: border-box;
}

li.item-1-level>a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    padding-left: 40px;
    min-height: 46px;
    transform: scale(1);
    transition: .4s transform;
    -webkit-transition: .4s transform;
    -moz-transition: .4s transform;
    -ms-transition: .4s transform;
    -o-transition: .4s transform;
    -webkit-transform: scale(1);
    -moz-transform: scale(1);
    -ms-transform: scale(1);
    -o-transform: scale(1);
}

li.item-1-level>a .all_width__icon-mnu {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 24px;
    height: 24px;
    transition: .3s left, .3s opacity;
    -webkit-transition: .3s left, .3s opacity;
    -moz-transition: .3s left, .3s opacity;
    -ms-transition: .3s left, .3s opacity;
    -o-transition: .3s left, .3s opacity;
    transition-timing-function: ease-out;
    opacity: 1;
}

.all_width__icon-mnu svg {
    width: 100%;
    height: 100%;
    fill: #428bca;
}

li.item-1-level .icon--level-2 {
    position: fixed;
    width: 100px;
    right: 5px;
    top: 10px;
    transform: translateX(30px);
    -webkit-transform: translateX(30px);
    -moz-transform: translateX(30px);
    -ms-transform: translateX(30px);
    -o-transform: translateX(30px);
    transition: .4s ease-in-out;
    -webkit-transition: .4s ease-in-out;
    -moz-transition: .4s ease-in-out;
    -ms-transition: .4s ease-in-out;
    -o-transition: .4s ease-in-out;
    transition-delay: .2s;
    opacity: 0;
}

/* level-1 hover effect */
li.item-1-level:hover>a {
    transform: scale(1.03) translateX(10px);
    -webkit-transform: scale(1.03) translateX(10px);
    -moz-transform: scale(1.03) translateX(10px);
    -ms-transform: scale(1.03) translateX(10px);
    -o-transform: scale(1.03) translateX(10px);
}

li.item-1-level:hover>a .all_width__icon-mnu {
    left: 0;
    opacity: 0;
}

li.item-1-level:hover ul.level-2-mnu {
    opacity: 1;
    transform: scaleX(1);
    -webkit-transform: scaleX(1);
    -moz-transform: scaleX(1);
    -ms-transform: scaleX(1);
    -o-transform: scaleX(1);
}

li.item-1-level:hover .icon--level-2 {
    transform: translateX(0);
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    opacity: 1;
}

/* level-2 */
ul.level-2-mnu {
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    position: absolute;
    top: 0;
    left: 300px;
    bottom: 0;
    right: 0;
    padding: 0px 105px 0px 0px;
    width: calc(100% - 300px);
    list-style: none;
    background-color: #f7f7f7;
    opacity: 0;
    overflow-y: scroll;
    box-sizing: border-box;
    transform: scaleX(0);
    -webkit-transform: scaleX(0);
    -moz-transform: scaleX(0);
    -ms-transform: scaleX(0);
    -o-transform: scaleX(0);
    transform-origin: left;
    transition: .4s transform ease-in-out, .3s opacity ease-in-out;
    -webkit-transition: .4s transform ease-in-out, .3s opacity ease-in-out;
    -moz-transition: .4s transform ease-in-out, .3s opacity ease-in-out;
    -ms-transition: .4s transform ease-in-out, .3s opacity ease-in-out;
    -o-transition: .4s transform ease-in-out, .3s opacity ease-in-out;
}

ul.level-2-mnu::-webkit-scrollbar {
    width: 0px;
}

ul.level-2-mnu::-webkit-scrollbar-track {
    background: #ffffff00
}

ul.level-2-mnu::-webkit-scrollbar-thumb {
    background: #ffffff00;
}

li.item-2-level {
    display: block;
    position: relative;
    margin: 10px 8px;
    width: 330px;
    border-radius: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
    box-shadow: 0 0 2px 0 #9fd7ff;
    transition: .2s box-shadow ease-out, .2s background-color ease-out;
    -webkit-transition: .2s box-shadow ease-out, .2s background-color ease-out;
    -moz-transition: .2s box-shadow ease-out, .2s background-color ease-out;
    -ms-transition: .2s box-shadow ease-out, .2s background-color ease-out;
    -o-transition: .2s box-shadow ease-out, .2s background-color ease-out;
    box-sizing: border-box;
}

li.item-2-level>a {
    position: relative;
    border-radius: 4px;
    padding: 10px;
    height: 100%;
    overflow: hidden;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
    box-sizing: border-box;
}

/* level-2 hover effect */
li.item-2-level:hover {
	background-color: #fff;
    box-shadow: -2px 2px 5px 0 #9fd7ff;
}

@media (prefers-color-scheme: dark) {
    li.item-1-level {
        background: #282828;
    }
    li.item-1-level a {
        color: #f1f1f1;
    }
    .all_width__icon-mnu svg {
        fill: #f1f1f1;
    }
    /* level-2 */
    ul.level-2-mnu {
        background-color: #212121;
    }
    li.item-2-level {
        box-shadow: 0 0px 0px 1px rgb(69 69 69 / 40%);
        background: #3c3c3c;
        transition: .1s background ease-in;
        -webkit-transition: .1s background ease-in;
        -moz-transition: .1s background ease-in;
        -ms-transition: .1s background ease-in;
        -o-transition: .1s background ease-in;
}
    /* level-2 hover effect */
    li.item-2-level:hover {
        background-color: #454545;
        box-shadow: 0 0px 0px 1px rgb(69 69 69 / 40%);
    }
}