.nav-menu *{
    box-sizing: border-box;
}
.nav-menu{
    display: flex;
    justify-content: center;
    font-size: 1.3em;
    flex-wrap: wrap;
}
.nav-menu>li{
    flex: 1 1 100px;
}
.nav-menu li{
    display: block;
    text-align: center;
    height: 2em;
    line-height: 2em;
    position: relative;
    transition: all .15s ease-out;
    cursor: pointer;
    text-wrap: nowrap;
    max-width: 300px;
}
.nav-menu li:hover{
    background-color: rgba(255, 255, 255, 0.2);
}
.nav-menu a{
    color: inherit;
    text-decoration: none;
    display: block;
    height: 100%;
}
/* .submenu{
    display: none;
} */
.submenu{
    display: block;
    position: relative;
    scale: 1 0;
    transition: scale .2s ease-out, box-shadow .2s ease-out;
    transition-delay: 0.2s;
    transform-origin: top;
    border-radius: .1em;
    z-index: 2;
}
.submenu>li:has(.submenu)::after{
    content: '❱';
    display: inline-block;
    position: absolute;
    top:0;
    right: .5em;
}
.submenu>li>.submenu{
    left: 100%;
    top:-100%;
}.submenu.left>li>.submenu{
    left: -100%;
}
.nav-menu, .submenu{
    background: var(--bg);
    box-shadow: 0 .2em .5em -.1em rgba(0, 0, 0, 0.0);
}
.nav-menu li:hover>.submenu, .nav-menu li:has(a:focus-visible)>.submenu{
    /* display: block; */
    scale: 1;
    transition-delay: 0s;
    transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 .2em .5em -.1em rgba(0, 0, 0, 0.3);
}
@media screen and (max-width: 540px){
    .submenu>li>.submenu{
        left: 0%;
        top:-100%;
    }.submenu.left>li>.submenu{
        left: 0%;
    }
}