.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 2;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    transition: 0.5s;
    padding-top: 60px;
}

.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
    transition: 0.3s;
}

.sidenav a:hover {
    color: #f1f1f1;
}

.sidenav .closebtn {
    position: absolute;
    top: 0;
    right: 25px;
    font-size: 36px;
    margin-left: 50px;
}

@media screen and (max-height: 450px) {
    .sidenav {
        padding-top: 15px;
    }

    .sidenav a {
        font-size: 18px;
    }
}

#openNav {
    font-size: 5vw;
    cursor: pointer;
    position: fixed;
    z-index: 1;
    left: 0;
}

.menu-btn {
    text-align: left;
    position: fixed;
    left: 0%;
    top: 2%;
    display: flex;
    justify-content: center;
    z-index: 2;
    align-items: center;
    width: 80px;
    height: 80px;
    color: red;
    cursor: pointer;
    transition: all .5s ease-in-out;
}

.menu-btn__burger {
    width: 50px;
    height: 6px;
    background: #808080;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(255, 101, 47, .2);
    transition: all .5s ease-in-out;
}

.menu-btn__burger::before,
.menu-btn__burger::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 6px;
    background: #808080;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(255, 101, 47, .2);
    transition: all .5s ease-in-out;
}

/* Mobile */
@media screen and (max-width:768px) {
    .menu-container {
        position: fixed;
        left: 1%;
        top: 3%;
        z-index: 2;
        width: 65px;
        height: 65px;
        background: rgba(255, 255, 255, 0.5);
        display: flex;
        border-radius: 10px;
        justify-content: center;
        align-items: center;
    }

    .menu-btn {
        position: relative;
    }

    .menu-btn__burger,
    .menu-btn__burger::before,
    .menu-btn__burger::after {
        background: black;
        width: 35px;
        height: 5px;
    }
}

.menu-btn__burger::before {
    transform: translateY(-16px);
}

.menu-btn__burger::after {
    transform: translateY(16px);
}

/* ANIMATION */
.menu-btn.open .menu-btn__burger {
    transform: translateX(-50px);
    background: transparent;
    box-shadow: none;
}

.menu-btn.open .menu-btn__burger::before {
    transform: rotate(45deg) translate(35px, -35px);
}

.menu-btn.open .menu-btn__burger::after {
    transform: rotate(-45deg) translate(35px, 35px);
}