* {
    box-sizing: border-box;
}

.navbar-burger {
    border: 0;
    padding: 0;
    background: transparent;
    cursor: pointer;
}

.fb-navbar,
.navbar-burger,
.menu {
    position: fixed;
}

.navbar-burger {
    z-index: 3;
    top: 0;
    right: 0;
    display: grid;
    place-items: center;
    width: 72px;
    height: 72px;
    background-image: url("img/list.svg");
    background-repeat: no-repeat;
    background-position: center;
}

.fb-navbar {
    z-index: 1;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 72px;
    padding-left: 20px;
    padding-right: 72px;
    background: #19191C;
    color: #F9F9F9;
}

.menu {
    z-index: 2;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    transition: 0.5s;
}

.fb-navbar > .navbar-burger {
    font-size: 28px;
}

.menu > a {
    color: #F9F9F9;
    font-size: 25px;
}

body.open .navbar-burger {
    background-image: url("img/x-lg.svg");
}

body.open .menu {
    opacity: 1;
    visibility: visible;
}

@keyframes appear {
    0% {
        opacity: 0;
        translate: 0 50px;
    }
    100% {
        opacity: 1;
    }
}

body.open .menu > a {
    animation: appear 0.3s both;
}

.divider {
    width: 100%;
    height: 3rem;
    background-color: rgba(0, 0, 0, .1);
    border: solid rgba(0, 0, 0, .15);
    border-width: 1px 0;
    box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
    margin-bottom: 40px;
}