header {
    height: 7vh;
    padding: 0.5rem 1rem;
}

.logo {
    font-family: var(--ff-logo);
    font-weight: 700;
    font-size: 1.6rem;
}

.logo a {
    font-size: max(2.5vw, 1.6rem);
    line-height: 1rem;
    text-decoration: none;
    color: #fff;
}

a {
    text-decoration: none;
}


/*****************
    Navigation  
******************/

/* Invisible Menu Toggle (checkbox) */

.nav-toggle {
    position: absolute !important;
    top: -9999px !important;
    left: -9999px !important;
}

.nav-toggle:focus ~ .nav-toggle__icon {
    outline: 3px solid rgba(lightblue, .75);
}

/* Visible Burger Button */

.nav-toggle__icon {
    position: absolute;
    top: 1.2rem;
    right: 1rem;
    width: 2rem;
    height: 2rem;
    display: block;
    cursor: pointer;
    z-index: 333;
}

.nav-toggle__icon:hover .icon__open::before,
.nav-toggle__icon:hover .icon__close::before {
    width: 100%;
}

.icon__open {
    display: block;
    width: 100%;
    height: 3.5px;
    background-image: var(--clr-primary-grad);
    margin-bottom: 4px;
    transform: rotate(-45deg);
    position: relative;
}

.icon__open::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 0%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    transition: all 0.3s cubic-bezier(0.55, 0, 0.1, 1);
}

.icon__open.open--top {
    width: 65%;
    margin-left: -3%;
}

.icon__open.open--middle::before {
    left: auto;
    right: 0;
}

.icon__open.open--bottom {
    width: 65%;
    margin-left: 40%;
}

.icon__close {
    display: block;
    width: 100%;
    height: 3.5px;
    background-color: var(--clr-accent);
    position: relative;
}

.icon__close::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 0%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.55, 0, 0.1, 1);
}

.close--left {
    transform: translateX(100px) translateY(-100px) rotate(-45deg);
}

.close--right {
    transform: translateX(-100px) translateY(-100px) rotate(45deg);
    top: -3px;
}

/* Navigation Menu */

.nav-container, .nav-menu {
    visibility: hidden;
    position: absolute;
    height: 100%;
    width: 100%;
    left: 0;
    top: 0;
}

.nav-container {
    z-index: 20;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav {
    opacity: 0;
    visibility: hidden;
    transform: matrix(1,0,0,1,0,30);
    display: block;
    width: 100%;
    padding: 20%;
}

.nav li {
    text-align: right;
    display: block;
    padding: 1rem 0rem;
}

.nav-menu a {
    display: inline-block;
    padding: 0.5em 0em;
    font-size: 0.9em;
    color: var(--clr-bkgd);
    position: relative;
}

.nav-menu a:hover::before,
.nav-menu a:focus::before {
    opacity: 1;
    transform: translateX(0px);
}

.nav-menu a::before {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 1rem;
    height: 3px;
    opacity: 0;
    background-color: var(--clr-bkgd);
    transform: translateX(100px);
    transition: all 0.3s cubic-bezier(0.55, 0, 0.1, 1);
}

.nav-menu__bkgd {
    visibility: hidden;
    position: absolute;
    display: block;
    width: 255%;
    left: -53%;
    top: -25%;
    height: 44%;
    background-color: var(--clr-bkgd-light);
    
}

.bkgd--top {
    left: -60%;
    top: 0;
    transform: rotate(-45deg) translateY(-150%);
}

.bkgd--middle {
    top: 29%;
    left: -53%;
    transform: rotate(-45deg) scaleY(0);
}

.bkgd--bottom {
    top: 105%;
    transform: rotate(-45deg) translateY(25%);
    left: -20%;
}

@media only screen and (min-width: 1000px) {

    header {
        margin: 1.5em 1em 0em;
    }

    .logo {
        width: 25vw;
    }

    .nav-container,
    .nav-menu,
    .nav,
    .nav li,
    .nav a {
        all: unset;
    }

    .nav-container {
        position: absolute;
        height: 7vh;
        width: auto;
        top: 1em;
        right: 2em;
    }

    .nav-menu {
        width: 100%;
        height: 100%;
    }

    .nav-menu__bkgd {
        visibility: hidden;
    }

    .nav-menu {
        display: flex;
        justify-content: flex-end;
        align-items: center;
    }
    
    .nav {
        display: flex;
        visibility: visible;
        opacity: 1;
    }

    .nav li {
        list-style: none;
        width: auto;
        cursor: pointer;
        padding: 1em;
    }

    .nav li:hover,
    .nav li:focus {
        background: #171525;
        border-radius: .25em;
    }

    li.news-updates:hover,
    li.news-updates:focus {
        background: #171525;
        border-radius: .25em .25em 0em 0em;
    }


    .nav a {
        font-family: var(--ff-text);
        color: #fff;
        font-weight: 400;
        font-size: 1rem;
    }

    li.sign-in {
        background: var(--clr-accent);
        border-radius: .25em;
    }

    .sign-in a {
        padding: 1em;
        color: var(--clr-bkgd);
        font-weight: 500;
    }


    .sign-in a:hover,
    .sign-in a:focus{
        color: var(--clr-accent);
    }

    .nav-toggle__icon {
        visibility: hidden;
    }
}