@import 'animations';
@import 'breakpoints';
@import 'colors';

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

body {
	background: $color-background;
	color: $color-text;
	display: flex;
	flex-direction: column;
	font-family: "Noto Sans", sans-serif;
	margin: 0 auto;
	max-width: $large;
	min-height: 100vh;

	& > main {
		flex-grow: 1;
	}
}

header, footer {
	padding: 0 1rem;
}

header {
	align-items: center;
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	margin-top: 1rem;

	& > .header-title {
		font-family: "Noto Sans Mono", monospace;
		font-weight: bold;
	}
}

main {
	padding: 1rem;
}

footer {
	margin-bottom: 1rem;

	nav {
		align-items: end;

		@media screen and (min-width: $small) {
			align-items: normal;
			justify-content: end;
		}
	}
}

nav {
	display: flex;
	flex-direction: column;

	&.nav-toggleable {
		flex-basis: 100%;
		max-height: 0;
		overflow-y: hidden;
		transition: max-height 0.5s;

		.nav-toggle:checked ~ & {
			max-height: calc(var(--num-elements) * 2em);
		}
	}

	a, span {
		line-height: 1.5em;
		margin: 0.5em 0 0 0;
	}

	@media screen and (min-width: $small) {
		flex-direction: row;

		&.nav-toggleable {
			flex-basis: auto;
			max-height: max-content;
		}

		a, span {
			margin: 0 0 0 1.2em;
		}
	}
}

a {
	color: $color-link;
	text-decoration: none;

	&:hover {
		text-decoration: underline;
	}
}

h1, h2, h3, h4, h5, h6 {
	margin-bottom: 0.5em;

	ol + &, p + &, pre + &, ul + & {
		margin-top: 1em;
	}
}

h1 {
	font-family: "Noto Sans Mono", monospace;
	font-size: 6rem;
	line-height: 1.15;
	text-align: center;

	@media (prefers-reduced-motion: no-preference) {
		animation: rainbow 5s linear 0s infinite;
	}
}

ol, p, pre, ul {
	&:not(:last-child) {
		margin-bottom: 0.5em;
	}
}

ol, ul {
	padding-left: 1.5em;
}

pre {
	background: $color-background-light;
	border-radius: 3px;
	color: $color-text-light;
	font-family: "Noto Sans Mono", monospace;
	font-size: 0.8rem;
	overflow-x: auto;
	padding: 0.8em 1em;
}

.nav-burger {
	cursor: pointer;
	display: flex;
	flex-direction: column;
	height: 1rem;
	justify-content: space-between;
	width: 1.2rem;

	div {
		background: $color-burger;
		height: 2px;
		transition: background 0.5s, transform 0.5s;
	}

	.nav-toggle:checked ~ & div {
		background: transparent;

		&:first-child {
			background: $color-burger;
			transform: translateY(0.5rem) translateY(-1px) rotate(45deg) scaleX(141%);
		}

		&:last-child {
			background: $color-burger;
			transform: translateY(-0.5rem) translateY(1px) rotate(-45deg) scaleX(141%);
		}
	}

	@media screen and (min-width: $small) {
		display: none;
	}
}

.nav-toggle {
	display: none;
}