@import url("plexfont/css/ibm-plex.min.css");

*, *::before, *::after {
	box-sizing: border-box;
}

:root {
	--main-bg-color: #303446;
	--buttons-and-lists: #e5c890;
	--h1-color: #D8DEE9;
	--h2-color: #E5E9F0;
	--h3-color: #ECEFF4;
	--h4-color: #8caaee;
	--hr-color: #ea999c;
	--header-bg: #414559;
	--code-color: #ea999c;
	--code-bg: #232634;
	--link-color: #a6d189;
	--para-color: #c6d0f5;
	--quote-color: #e5c890;
	--button-text-color: #232634;
	--tab-bg: #c6d0f5;
	--font-body: 'IBM Plex Serif', 'Georgia', Times, serif;
	--font-para: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
	--spine-shading: linear-gradient(90deg, rgba(255,255,255,0.15) 0%, transparent 20%, transparent 80%, rgba(0,0,0,0.15) 100%);
	/* Book Patterns */
	--pat-bands: linear-gradient(to bottom, transparent 10px, rgba(0,0,0,0.2) 10px, rgba(0,0,0,0.2) 14px, transparent 14px, transparent 136px, rgba(0,0,0,0.2) 136px, rgba(0,0,0,0.2) 140px, transparent 140px);
	--pat-caps: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.2) 20px, transparent 20px, transparent 130px, rgba(0,0,0,0.2) 130px, rgba(0,0,0,0.2) 100%);
	--pat-stripes: repeating-linear-gradient(to bottom, transparent 0px, transparent 4px, rgba(0,0,0,0.1) 4px, rgba(0,0,0,0.1) 6px);
	--pat-texture: repeating-linear-gradient(45deg, transparent 0px, transparent 2px, rgba(0,0,0,0.05) 2px, rgba(0,0,0,0.05) 4px);
	--pat-label: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.1) 40px, transparent 40px, transparent 110px, rgba(0,0,0,0.1) 110px, rgba(0,0,0,0.1) 100%);
	--wood-texture: repeating-linear-gradient(45deg, #855E42 0px, #855E42 10px, #6F4E37 10px, #6F4E37 20px, #5C4033 20px, #5C4033 25px);
	}

body {
	background-color: var(--main-bg-color);
	max-width: 850px;
	min-width: 325px;
	padding: 0 5% 2.5%;
	margin-inline: auto;
	font: normal normal normal 0.875rem var(--font-body);
	box-sizing: content-box;
}

h1, h2, h3, h4, time {
	text-shadow: 2px 2px black;
}

h1 {
	color: var(--h1-color);
}

h2 {
	color: var(--h2-color);
}

h3 {
	color: var(--h3-color);
}

h4, time {
	font-weight: bold;
	color: var(--h4-color);
}

p {
	line-height: 1.3em;
	margin: 1.5em 0.5em 1.5em 0em;
	color: var(--para-color);
	font: normal normal normal 1em var(--font-para);
}

blockquote {
	color: var(--quote-color);
	font: oblique normal bold 1em var(--font-para);
}

hr {
	color: var(--hr-color);
}

ul.head {
	list-style-type: none;
	font-variant: all-small-caps;
	display: flex;
	padding: 0;
	margin: auto;
	width: 100%;
	gap: 5px;
}

ul.head li {
	flex: 1;
}

li, .book-title {
	color: var(--buttons-and-lists);
}

li.nodot {
	list-style-type: none;
}

a {
	color: var(--link-color);
}

a.head {
	background-color: var(--buttons-and-lists);
	text-decoration: none;
	border-radius: 12px;
	text-align: center;
	font-size: 1rem;
	display: block;
	padding: 8px;
	white-space: nowrap;
	color: var(--button-text-color);
}

/* Added tabbing focus */
a.head:hover,
a.head:focus {
	background: var(--tab-bg);
}

@media (min-width: 1280px) {
	ul.head {
		border-radius: 10px;
		margin-inline-start: -200px;
		background: var(--header-bg);
		display: block;
		border: dashed 1px var(--main-bg-color);
		float: left;
		width: 150px;
	}
	li.head {
		padding: 5%;
		float: none;
	}
	a.head:hover,
	a.head:focus {
		box-shadow: -3px -3px var(--buttons-and-lists),
					+3px +3px var(--buttons-and-lists);
	}
}
/* Trick to go emoji-only buttons if too small (usually mobile).
   Scoped to ul.head so it doesn't affect other .head links (like books). */
@media (max-width: 640px) {
	ul.head a.head {
		font-size: 0;
	}
	ul.head a.head::first-letter {
		font-size: 1rem;
	}
}


/* Misc. Formatting */
.aligncenter {
	text-align: center;
}

/* Adding some formatting for a collapsible section */
details {
	border: 1px solid var(--buttons-and-lists);
	border-radius: 8px;
	padding: 0.5em 1em;
	margin: 1em 0;
}

summary {
	font-weight: bold;
	margin: -0.5em -1em 0;
	padding: 0.5em 1em;
	cursor: pointer;
	color: var(--buttons-and-lists);
	display: flex;
	align-items: center;
	list-style: none;
}

summary::-webkit-details-marker {
	display: none;
}

summary::before {
	content: '▶';
	margin-right: 0.5em;
	font-size: 0.8em;
	transition: transform 0.5s ease;
}

details[open] summary {
	border-bottom: 1px solid var(--buttons-and-lists);
	margin-bottom: 0.5em;
}

details[open] summary::before {
	transform: rotate(450deg);
}

code.cutaddr {
	border-radius: 10px;
	background: var(--code-bg);
	max-width: 60%;
	overflow-wrap: break-word;
	overflow: hidden;
	display: inline-block;
	padding: 10px;
	border: 1px solid var(--para-color);
	margin: 0px 0px 0px 0px;
	color: var(--code-color);
	font: normal normal bold x-small var(--font-para);
}

img {
	vertical-align: middle;
}

.qr {
	max-width: 150px;
}

.column {
	text-align: center;
	padding: 0 2px;
	float: left;
	width: 33.33%;
}

.TwoCol {
	text-align: center;
	padding: 0 2px;
	float: left;
	width: 50%;
}

/* A comical amount of bookshelf styling */
.bookshelf {
	display: flex;
	align-items: flex-end;
	justify-content: center;
	padding: 20px 10px 10px;
	margin: 2em auto;
	gap: 10px 2px;
	flex-wrap: wrap;
	border-top: 10px solid transparent;
	border-image: var(--wood-texture) 1;
	background-position: 0 20px;
	background-image: repeating-linear-gradient(
		to bottom,
		var(--main-bg-color) 0px,
		var(--main-bg-color) 150px,
		transparent 150px,
		transparent 160px
	), var(--wood-texture);
}

.book-spine {
	background-color: var(--buttons-and-lists);
	color: var(--button-text-color);
	text-decoration: none;
	writing-mode: vertical-rl;
	text-orientation: mixed;
	height: 150px;
	padding: 10px 6px;
	border: 1px solid var(--main-bg-color);
	border-radius: 3px 3px 0 0;
	font-weight: bold;
	transition: transform 0.2s ease;
	box-shadow: inset 2px 0 2px rgba(255,255,255,0.2), inset -2px 0 2px rgba(0,0,0,0.2);
	display: block;
	/* Default shading for roundness */
	background-image: var(--spine-shading);
}

.book-spine:hover,
.book-spine:focus {
	transform: translateY(-10px);
	z-index: 1;
	filter: brightness(1.15);
	box-shadow: inset 2px 0 2px rgba(255,255,255,0.2), inset -2px 0 2px rgba(0,0,0,0.2), 4px 4px 8px rgba(0,0,0,0.3);
}

/* Appearance Cycle (Color + Height) */
.book-spine:nth-child(6n+1) { background-color: var(--buttons-and-lists); height: 150px; margin-top: 0; }
.book-spine:nth-child(6n+2) { background-color: var(--h4-color); height: 138px; margin-top: 12px; }
.book-spine:nth-child(6n+3) { background-color: var(--link-color); height: 145px; margin-top: 5px; }
.book-spine:nth-child(6n+4) { background-color: var(--hr-color); height: 132px; margin-top: 18px; }
.book-spine:nth-child(6n+5) { background-color: var(--para-color); height: 140px; margin-top: 10px; }
.book-spine:nth-child(6n+6) { background-color: var(--h2-color); height: 125px; margin-top: 25px; }

/* Shape Cycle (Pattern + Thickness) */
.book-spine:nth-child(5n+1) { padding: 10px 6px; background-image: var(--spine-shading), var(--pat-bands); }
.book-spine:nth-child(5n+2) { padding: 10px 10px; background-image: var(--spine-shading); } /* Plain */
.book-spine:nth-child(5n+3) { padding: 10px 4px; background-image: var(--spine-shading), var(--pat-caps); }
.book-spine:nth-child(5n+4) { padding: 10px 8px; background-image: var(--spine-shading), var(--pat-stripes); }
.book-spine:nth-child(5n+5) { padding: 10px 5px; background-image: var(--spine-shading), var(--pat-texture); }