:root{
    --background: rgba(24, 186, 62, .85);
}

header{
    background: var(--background);
    text-align: center;
    position: fixed;
    z-index: 999;
    width: 100%;
}

.blank_line{
    padding: 60px 0 10px;
}

.nav-toggle{
    display: none;
}

.nav-toggle-label{
    position: absolute;
    top: 0;
    left: 0;
    margin-left: 1em;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after{
    display: block;
    background: white;
    height: 2px;
    width: 2em;
    border-radius: 2px;
    position: relative;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after{
    content: '';
    position: absolute;
}

.nav-toggle-label span::before{
    bottom: 7px;
}

.nav-toggle-label span::after{
    top: 7px;
}

nav{
    position: absolute;
    text-align: left;
    top: 100%;
    left: 0;
    background: var(--background);
    width: 100%;
    transform: scale(1, 0);
    transform-origin: top;
    transition: transform 400ms ease-in-out;
}

nav ul{
    margin: 0;
    padding: 0;
    list-style: none;
}

nav li{
    margin-bottom: 1em;
    margin-left: 1em;
}

nav a{
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity 150ms ease-in-out;
}

nav a:hover{
    color: black;
}

.nav-toggle:checked ~ nav{
    transform: scale(1,1);
}

.nav-toggle:checked ~ nav a{
    opacity: 1;
    transition: opacity 250ms ease-in-out 250ms;
}

@media screen and (min-width: 768px){
    .nav-toggle-label{
        display: none;
    }
    header{
        display: grid;
	grid-template-columns: 1fr auto minmax(600px, 3fr) 1fr;
    }
    .logo{
        grid-column: 2 / 3;
    }
    nav{
	all: unset;
        grid-column: 3 / 4;
	display: flex;
	justify-content: flex-end;
	align-items: center;
    }
    nav ul{
        display: flex;
    }
    nav li{
        margin-left: 3em;
	margin-bottom: 0;
    }
    nav a{
        opacity: 1;
	position: relative;
    }
    nav a::before{
        content: '';
	display: block;
	height: 5px;
	background: black;
	position: absolute;
	top: -.75em;
	left: 0;
	right: 0;
	transform: scale(0, 1);
	transition: transform ease-in-out 250ms;
    }
    nav a:hover::before{
        transform: scale(1, 1);
    }
}