:root {
    --header-height: 70px;
    --header-fg-accent: #000;
}

@media (max-width: 768px) { /* mobile */
	body:has(#nav-toggle:checked) .center {
        visibility: hidden; /* hide main content when menu is open */
	}
	ul.nav-menu {
		width: 80%;
		flex-direction: column;
	}
    nav.site-nav {
        padding: 0;
		overflow: hidden;
    }
	nav.site-nav > ul.nav-menu {
		position: fixed;
		top: 50px;
		left: 45px;
		right: 0;
		opacity: 0;
		visibility: hidden;
		transform: translateY(-10px);
		transition: all 0.3s ease;
		flex-direction: column;
		overflow-y: auto;
		height: calc(100vh - 60px);
        padding: 20px 0 0 20px;
	}
	#nav-toggle {
		display: none; /* hide checkbox */
	}
	.nav-toggle-label {
		padding: 8px 14px;
		border-radius: 5px;
		cursor: pointer;
		display: inline-block;
		user-select: none;
        color: var(--header-fg);
	}
	/* Show menu when hamburger checkbox is checked */
	nav.site-nav #nav-toggle:checked ~ ul.nav-menu {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}
	.columns aside.nav-icons {
        position: fixed;
        left: 0;
        bottom: 0;
    }
	.columns aside.nav-icons svg {
		width: 30px;
		height: 30px;
		margin: 10px;
	}
	.columns div.right-column {
		display: none; /* hide prev/next on small screens */
	}
	div.center {
		overflow-x: hidden;
	}
}