/*
DeepASI - Formatierung
Strukturelle Styles und Layouts
Basierend auf myzelasi-formatierung
*/

/* ================================================================
   BASIS-STYLING
================================================================ */
:root {
	--max-width: 900px;
	--border-radius: 8px;
	--base-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	--base-line-height: 1.6;

	/* Abstände */
	--space-xs: 0.25rem;
	--space-sm: 0.5rem;
	--space-md: 1rem;
	--space-lg: 1.5rem;
	--space-xl: 2rem;
}

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

body {
	font-family: var(--base-font-family);
	background-color: var(--color-background);
	color: var(--color-text);
	line-height: var(--base-line-height);
	margin: 0;
	padding: var(--space-md);
	display: grid;
	grid-template-rows: auto auto 1fr auto;
	gap: var(--space-lg);
	min-height: 100vh;
}

/* Reduzierte Bewegungen */
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

/* ================================================================
   TYPOGRAFIE
================================================================ */
h1, h2, h3 {
	color: var(--color-heading);
	line-height: 1.2;
	margin-top: 0;
	margin-bottom: var(--space-sm);
}

p {
	margin: 0 0 var(--space-md) 0;
}

/* ================================================================
   LINKS
================================================================ */
a {
	color: var(--color-link);
	text-decoration: underline;
	text-decoration-color: var(--color-link-underline);
	transition: color 0.2s;
}

a:visited {
	color: var(--color-link-visited);
	text-decoration-color: var(--color-link-visited-underline);
}

a:hover {
	color: var(--color-link-hover);
	text-decoration-color: currentColor;
}

/* ================================================================
   HEADER
================================================================ */
header {
	background-color: var(--color-header-footer-bg);
	color: var(--color-heading);
	padding: var(--space-lg);
	text-align: center;
	border-radius: var(--border-radius);
}

header h1 {
	margin: 0;
	font-size: 2rem;
}

header p {
	color: var(--color-muted-text);
	margin: var(--space-sm) 0 0 0;
	font-style: italic;
}

/* ================================================================
   NAVIGATION
================================================================ */
nav {
	background-color: var(--color-card-bg);
	padding: var(--space-md);
	border-radius: var(--border-radius);
	border: 1px solid var(--color-border);
}

.nav-inline {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--space-sm);
}

.nav-inline li {
	display: flex;
	align-items: center;
}

.nav-inline li:not(:last-child)::after {
	content: '·';
	margin-left: var(--space-sm);
	color: var(--color-muted-text);
}

.nav-inline a {
	padding: var(--space-xs) var(--space-sm);
	border-radius: 4px;
	text-decoration: none;
	transition: background-color 0.2s;
}

.nav-inline a:hover {
	background-color: var(--color-link-hover-bg);
	text-decoration: none;
}

/* ================================================================
   MAIN CONTENT
================================================================ */
main {
	max-width: var(--max-width);
	margin: 0 auto;
	width: 100%;
	display: grid;
	gap: var(--space-lg);
}

section {
	background-color: var(--color-card-bg);
	padding: var(--space-lg);
	border-radius: var(--border-radius);
	border: 1px solid var(--color-border);
}

section h2 {
	border-bottom: 2px solid var(--color-border);
	padding-bottom: var(--space-sm);
	margin-bottom: var(--space-md);
}

/* ================================================================
   BILDER
================================================================ */
figure {
	margin: 0;
	text-align: center;
}

figure img {
	max-width: 100%;
	height: auto;
	border-radius: var(--border-radius);
}

figcaption {
	color: var(--color-muted-text);
	font-style: italic;
	margin-top: var(--space-sm);
	font-size: 0.9rem;
}

/* ================================================================
   EINZELBILD EIN-/AUSBLENDEN
================================================================ */
.collapsible-figure {
	position: relative;
}

.figure-visibility-toggle {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.figure-visibility-label {
	display: inline-flex;
	align-items: center;
	cursor: pointer;
	background-color: var(--color-secondary-bg);
	color: var(--color-text);
	padding: 0.4rem 0.8rem;
	border-radius: 4px;
	font-size: 0.85rem;
	font-weight: 500;
	border: 1px solid var(--color-border);
	transition: all 0.2s ease;
	margin-bottom: 0.75rem;
}

.figure-visibility-label:hover {
	background-color: var(--color-link-hover-bg);
	border-color: var(--color-link);
}

.figure-visibility-toggle:focus + .figure-visibility-label {
	outline: 3px solid var(--color-focus);
	outline-offset: 2px;
	border-color: var(--color-focus);
}

.figure-visibility-text {
	background-color: transparent;
	color: inherit;
	font-size: 0; /* Originaltext verstecken */
}

.figure-visibility-text::before {
	content: '👁️ ';
	margin-right: 0.25rem;
	font-size: 0.85rem;
}

.figure-visibility-text::after {
	content: 'Bild ausblenden';
	font-size: 0.85rem;
}

/* Icon und Text ändern wenn ausgeblendet (checked = ausgeblendet) */
.figure-visibility-toggle:checked + .figure-visibility-label .figure-visibility-text::before {
	content: '👁️‍🗨️ ';
}

.figure-visibility-toggle:checked + .figure-visibility-label .figure-visibility-text::after {
	content: 'Bild einblenden';
}

/* Bild-Content standardmäßig ausgeblendet (checked = ausgeblendet) */
.figure-visibility-toggle:checked ~ .figure-content {
	display: none;
}

/* Figcaption mit Hinweis wenn ausgeblendet */
.figure-visibility-toggle:checked ~ figcaption::before {
	content: '[Bild ausgeblendet] ';
	font-style: normal;
	color: var(--color-muted-text);
}

/* Figure-Content Container */
.figure-content {
	position: relative;
}

/* ================================================================
   FOOTER
================================================================ */
footer {
	background-color: var(--color-header-footer-bg);
	color: var(--color-text);
	padding: var(--space-md);
	text-align: center;
	border-radius: var(--border-radius);
}

footer p {
	margin: 0;
}

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

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

/* ================================================================
   ACCESSIBILITY
================================================================ */
:focus-visible {
	outline: 3px solid var(--color-focus);
	outline-offset: 2px;
}

.skip-link {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
	transition: all 0.3s ease;
}

.skip-link:focus,
.skip-link:active {
	position: fixed;
	top: 10px;
	left: 10px;
	width: auto;
	height: auto;
	padding: 12px 16px;
	margin: 0;
	overflow: visible;
	clip: auto;
	white-space: normal;
	background: #005f87;
	color: #ffffff;
	font-weight: bold;
	text-decoration: none;
	border-radius: 4px;
	z-index: 10000;
	outline: 3px solid #ffbf47;
	outline-offset: 2px;
}


/* ================================================================
   MODUS-SCHALTER
================================================================ */
.light-mode-wrapper {
	position: fixed;
	top: var(--space-md);
	right: var(--space-md);
	z-index: 100;
}

.light-mode-toggle {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.light-mode-label {
	display: flex;
	align-items: center;
	cursor: pointer;
	background-color: var(--color-nav-background);
	color: var(--color-text);
	padding: 0.5rem 1rem;
	border-radius: 20px;
	font-size: 0.9rem;
	font-weight: 500;
	border: 1px solid var(--color-border);
	transition: all 0.2s ease;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.light-mode-label:hover {
	background-color: var(--color-secondary-bg);
	border-color: var(--color-link);
}

.light-mode-toggle:focus + .light-mode-label {
	outline: 3px solid var(--color-focus);
	outline-offset: 2px;
	border-color: var(--color-focus);
}

.light-mode-text {
	background-color: transparent;
	color: inherit;
}

.light-mode-text::before {
	content: '☀️ ';
	margin-right: 0.25rem;
}

#light-mode-toggle:checked + .light-mode-label .light-mode-text::before {
	content: '🌙 ';
}

/* Hoher Kontrast Toggle */
.high-contrast-wrapper {
	position: fixed;
	top: calc(var(--space-md) + 3rem);
	right: var(--space-md);
	z-index: 100;
}

.high-contrast-toggle {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.high-contrast-label {
	display: flex;
	align-items: center;
	cursor: pointer;
	background-color: var(--color-nav-background);
	color: var(--color-text);
	padding: 0.5rem 1rem;
	border-radius: 20px;
	font-size: 0.9rem;
	font-weight: 500;
	border: 1px solid var(--color-border);
	transition: all 0.2s ease;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.high-contrast-label:hover {
	background-color: var(--color-secondary-bg);
	border-color: var(--color-link);
}

.high-contrast-toggle:focus + .high-contrast-label {
	outline: 3px solid var(--color-focus);
	outline-offset: 2px;
	border-color: var(--color-focus);
}

.high-contrast-text {
	background-color: transparent;
	color: inherit;
}

.high-contrast-text::before {
	content: '◐ ';
	margin-right: 0.25rem;
}

#high-contrast-toggle:checked + .high-contrast-label .high-contrast-text::before {
	content: '◉ ';
}

/* Bei dunkler Systempräferenz ist der Schalter standardmäßig aus
   (= dunkler Modus aktiv). Icons spiegeln, damit das Symbol immer
   den gerade aktiven Modus zeigt (XOR-Logik, siehe denknest-colors.css). */
@media screen and (not (prefers-color-scheme: light)) {
	.light-mode-text::before {
		content: '🌙 ';
	}

	#light-mode-toggle:checked + .light-mode-label .light-mode-text::before {
		content: '☀️ ';
	}
}

/* Bei Systempräferenz "mehr Kontrast" ist der Modus standardmäßig aktiv
   (Schalter aus). Icons spiegeln, damit das Symbol den aktiven Modus zeigt. */
@media screen and (prefers-contrast: more) {
	.high-contrast-text::before {
		content: '◉ ';
	}

	#high-contrast-toggle:checked + .high-contrast-label .high-contrast-text::before {
		content: '◐ ';
	}
}

/* Hoher Kontrast - Zusätzliche Hervorhebungen
   XOR-Logik wie in denknest-colors.css: gilt bei Schalter AN
   (System ohne Präferenz) bzw. Schalter AUS (System = more). */
@media screen and (not (prefers-contrast: more)) {
	body:has(#high-contrast-toggle:checked) nav,
	body:has(#high-contrast-toggle:checked) footer,
	body:has(#high-contrast-toggle:checked) section {
		border: 3px solid var(--color-border);
	}

	body:has(#high-contrast-toggle:checked) a {
		font-weight: 600;
		text-decoration: underline;
	}

	body:has(#high-contrast-toggle:checked) h1,
	body:has(#high-contrast-toggle:checked) h2 {
		font-weight: 700;
		border-bottom: 2px solid var(--color-text);
		padding-bottom: 0.25rem;
	}
}

@media screen and (prefers-contrast: more) {
	body:not(:has(#high-contrast-toggle:checked)) nav,
	body:not(:has(#high-contrast-toggle:checked)) footer,
	body:not(:has(#high-contrast-toggle:checked)) section {
		border: 3px solid var(--color-border);
	}

	body:not(:has(#high-contrast-toggle:checked)) a {
		font-weight: 600;
		text-decoration: underline;
	}

	body:not(:has(#high-contrast-toggle:checked)) h1,
	body:not(:has(#high-contrast-toggle:checked)) h2 {
		font-weight: 700;
		border-bottom: 2px solid var(--color-text);
		padding-bottom: 0.25rem;
	}
}

/* ================================================================
   RESPONSIVE - Modus-Schalter horizontal
================================================================ */
@media (max-width: 768px) {
	.light-mode-wrapper,
	.high-contrast-wrapper {
		position: fixed;
		top: var(--space-xs);
		right: auto;
		left: var(--space-xs);
	}

	.light-mode-wrapper {
		left: var(--space-xs);
	}

	.high-contrast-wrapper {
		left: calc(var(--space-xs) + 6.5rem);
		top: var(--space-xs);
	}

	/* Kompaktere Labels auf kleinen Screens */
	.light-mode-label,
	.high-contrast-label {
		padding: 0.35rem 0.6rem;
		font-size: 0.8rem;
		border-radius: 15px;
	}

	/* Text ausblenden, nur Icons zeigen */
	.light-mode-text,
	.high-contrast-text {
		font-size: 0;
	}

	.light-mode-text::before,
	.high-contrast-text::before {
		font-size: 1rem;
		margin-right: 0;
	}

	/* Platz für Schalter */
	body {
		padding-top: 3rem;
	}
}

/* Noch kleinere Screens */
@media (max-width: 480px) {
	.high-contrast-wrapper {
		left: calc(var(--space-xs) + 3.5rem);
	}

	.light-mode-label,
	.high-contrast-label {
		padding: 0.3rem 0.5rem;
	}

	.nav-inline {
		flex-direction: column;
		align-items: center;
	}

	.nav-inline li:not(:last-child)::after {
		display: none;
	}
}

/* ================================================================
   KONTRAST-OPTIMIERUNG LIGHT MODE
   denknest setzt im hellen Modus --color-muted-text #6B7280
   (4.39:1 auf #F3F4F6 - unter 4.5:1). Hier dunkler ueberschrieben.
   XOR-Logik wie in denknest-colors.css: Toggle AN bei dunkler
   Systempraeferenz bzw. Toggle AUS bei heller Systempraeferenz.
=============================================================== */
@media screen and (not (prefers-color-scheme: light)) {
	body:has(#light-mode-toggle:checked):not(:has(#high-contrast-toggle:checked)) {
		--color-muted-text: #4B5563;
	}
}

@media screen and (prefers-color-scheme: light) {
	body:not(:has(#light-mode-toggle:checked)):not(:has(#high-contrast-toggle:checked)) {
		--color-muted-text: #4B5563;
	}
}