@font-face {
	font-family: "IBM Plex Mono";
	font-style: normal;
	font-weight: 400;
	font-display: swap;
	src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}

@font-face {
	font-family: "IBM Plex Mono";
	font-style: normal;
	font-weight: 500;
	font-display: swap;
	src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}

:root {
	color-scheme: light dark;
	--bg: #efece4;
	--card: #f7f5ef;
	--fg: #1c1b19;
	--muted: #5f5c55;
	--border: #d4cfc3;
	--accent: #b54a1f;
	--grid: rgba(28, 27, 25, 0.045);
	--font: "IBM Plex Mono", ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
	font-family: var(--font);
	font-size: 15px;
	line-height: 1.55;
	font-variant-ligatures: none;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #141311;
		--card: #1c1b18;
		--fg: #ece8df;
		--muted: #9a958a;
		--border: #3a3730;
		--accent: #e08a4a;
		--grid: rgba(236, 232, 223, 0.04);
	}
}

* { box-sizing: border-box; }

html, body {
	margin: 0;
	min-height: 100%;
	background-color: var(--bg);
	background-image:
		linear-gradient(var(--grid) 1px, transparent 1px),
		linear-gradient(90deg, var(--grid) 1px, transparent 1px);
	background-size: 1.5rem 1.5rem;
	color: var(--fg);
}

body {
	min-height: 100vh;
	display: grid;
	place-items: center;
	padding: 1.25rem 0.75rem;
}

[data-lang] { display: none; }
html[lang="de"] [data-lang="de"],
html[lang="en"] [data-lang="en"] { display: revert; }

.skip {
	position: absolute;
	left: -999px;
	top: 0;
	background: var(--accent);
	color: var(--card);
	padding: 0.5rem 0.75rem;
}

.skip:focus {
	left: 0.5rem;
	top: 0.5rem;
	z-index: 10;
}

.sr {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.frame {
	width: min(40rem, 100%);
	background: var(--card);
	border: 1px solid var(--border);
	border-top: 2px solid var(--accent);
	padding: 1.5rem 1.5rem 1.15rem;
}

header {
	padding-bottom: 1rem;
	margin-bottom: 1.25rem;
	border-bottom: 1px dashed var(--border);
}

.mast {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 0.75rem 1rem;
	flex-wrap: wrap;
}

.brand {
	margin: 0;
	font-size: 0.95rem;
	font-weight: 500;
}

.brand a {
	color: inherit;
	text-decoration: none;
}

.brand a:hover,
.brand a:focus-visible {
	color: var(--accent);
}

.cursor {
	display: inline-block;
	width: 0.55ch;
	height: 1em;
	margin-left: 0.2ch;
	background: var(--accent);
	vertical-align: -0.1em;
	animation: blink 1.15s step-end infinite;
}

@keyframes blink {
	50% { opacity: 0; }
}

.lang {
	margin: 0;
	display: flex;
	gap: 0.35rem;
}

.lang-btn {
	appearance: none;
	background: transparent;
	border: 1px solid transparent;
	color: var(--muted);
	font: inherit;
	font-size: 0.75rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	padding: 0.1rem 0.35rem;
	cursor: pointer;
}

.lang-btn[aria-pressed="true"] {
	color: var(--fg);
	border-color: var(--border);
}

.lang-btn:hover,
.lang-btn:focus-visible {
	color: var(--accent);
}

nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem 1.1rem;
	margin-top: 0.85rem;
	font-size: 0.85rem;
}

nav a {
	color: var(--fg);
	text-decoration: none;
}

nav a:hover,
nav a:focus-visible,
nav a[aria-current="page"] {
	color: var(--accent);
	text-decoration: underline;
	text-underline-offset: 0.18em;
}

.ext-mark {
	margin-left: 0.2ch;
	color: var(--muted);
	font-size: 0.85em;
}

h1 {
	font-size: 1.25rem;
	font-weight: 500;
	line-height: 1.4;
	margin: 0 0 0.85rem;
	text-wrap: pretty;
}

.intro {
	margin: 0 0 1.75rem;
	color: var(--muted);
	text-wrap: pretty;
}

.block {
	margin: 0 0 1.4rem;
}

h2 {
	margin: 0 0 0.15rem;
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--muted);
	border-bottom: 1px solid var(--border);
	padding-bottom: 0.35rem;
}

dl {
	margin: 0;
}

dl > div {
	display: grid;
	grid-template-columns: 11rem 1fr;
	gap: 0.5rem 1rem;
	padding: 0.65rem 0;
	border-bottom: 1px dashed var(--border);
}

dt {
	margin: 0;
	font-weight: 500;
	color: var(--fg);
}

dd {
	margin: 0;
	color: var(--muted);
}

code {
	font-family: inherit;
	font-size: inherit;
	color: var(--fg);
}

a {
	color: var(--accent);
	text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
	color: var(--fg);
}

a:focus-visible,
.skip:focus,
.lang-btn:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

.prose h2 {
	margin-top: 2rem;
}

.prose p,
.prose li {
	color: var(--muted);
}

.prose p {
	margin: 0 0 0.85rem;
}

.prose strong {
	color: var(--fg);
	font-weight: 500;
}

.prose ul {
	margin: 0 0 0.85rem;
	padding-left: 1.2rem;
}

footer {
	margin-top: 0.25rem;
	padding-top: 0.9rem;
	border-top: 1px dashed var(--border);
	font-size: 0.75rem;
	color: var(--muted);
}

footer p {
	margin: 0;
}

footer .contact-line,
footer .legal-line {
	margin-bottom: 0.35rem;
}

footer a {
	color: inherit;
}

footer a:hover,
footer a:focus-visible,
footer a[aria-current="page"] {
	color: var(--accent);
}

::selection {
	background: var(--accent);
	color: var(--card);
}

@media (max-width: 36rem) {
	.frame {
		padding: 1.25rem 1.1rem 1rem;
	}

	h1 {
		font-size: 1.1rem;
	}

	.brand {
		font-size: 0.85rem;
	}

	dl > div {
		grid-template-columns: 1fr;
		gap: 0.15rem;
		padding: 0.7rem 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	.cursor {
		animation: none;
		opacity: 0.7;
	}

	.htmx-settling,
	.htmx-swapping,
	.htmx-request {
		transition: none !important;
	}
}