.mobile-menu {
    position: relative;
    display: inline-block;
    height: 50px;
    width: 50px;
    overflow: hidden;
}
.mobile-menu-button {
    position: relative;
    width: 100%;
    height: 100%;
    
    cursor: pointer;
    
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    
    -webkit-transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    
    -webkit-tap-highlight-color: transparent;

}
.mobile-menu-button-bars {
  width: 18px;
  height: 8px;
  position: absolute;
  display: block;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.mobile-menu-button-bars > * {
    width: 100%;
    height: 0;
    box-sizing: border-box;
    display: block;
    position: absolute;
    left: 0;
    border-width: 2px;

    -webkit-transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    
    -webkit-transition-delay: 0s;
    transition-delay: 0s;

}
.mobile-menu-button-bars-top {
    
    top: 0;
    border-top-style: solid;
    
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);

}
.mobile-menu-button-bars-bottom {
    
    bottom: 0;
    border-bottom-style: solid;
    
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);

}

.mobile-menu.menu-opened {
    overflow: visible;
}
.mobile-menu.menu-opened .mobile-menu-button {
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
}
.mobile-menu.menu-opened .mobile-menu-button .mobile-menu-button-bars > * {
    -webkit-transition: all 0.4s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    transition: all 0.4s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    -webkit-transition-delay: 0.2s;
    transition-delay: 0.2s;
}
.mobile-menu.menu-opened .mobile-menu-button .mobile-menu-button-bars .mobile-menu-button-bars-top {
    
    top: 50%;

    -webkit-transform: translateY(-50%) rotate(45deg);
    transform: translateY(-50%) rotate(45deg);
}
.mobile-menu.menu-opened .mobile-menu-button .mobile-menu-button-bars .mobile-menu-button-bars-bottom {
    
    bottom: 50%;

    -webkit-transform: translateY(50%) rotate(-45deg);
    transform: translateY(50%) rotate(-45deg);
}


.mobile-menu .mobile-menu-items {
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    position: absolute;
    z-index: 2;
    top: 100%;
    right: 0;
    box-sizing: border-box;
    padding: 0.5em;
    background: linear-gradient(to bottom, var(--color-sprq-slate), transparent);
    min-height: 75vh;
    width: 0;
    
}
.mobile-menu.menu-opened .mobile-menu-items {
    opacity: 1;
    visibility: visible;
    
    width: 100vw;
}

.mobile-menu-item {
    display: block;
    cursor: pointer;
}
.mobile-menu-item ~ .mobile-menu-item {
    margin-top: 1em;
}