:root
{
	--papier: #efece6;
	--papier-tief: #e3ded5;
	--tuerkis: #3f8578;
	--tuerkis-tief: #24504a;
	--tuerkis-blass: #cfe0da;
	--tinte: #232c2a;
	--grau: #6d6f6b;
}

*
{
	box-sizing: border-box;
}

html
{
	scroll-behavior: smooth;
}

body
{
	margin: 0;
	background: var(--papier);
	color: var(--tinte);
	font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	font-size: clamp(1rem, .55rem + .58vw, 1.14rem);
	line-height: 1.72;
	-webkit-text-size-adjust: 100%;
}

img
{
	display: block;
	max-width: 100%;
	height: auto;
}

a
{
	color: var(--tuerkis-tief);
}

.bahn
{
	width: min(100% - 2.6rem, 74rem);
	margin-inline: auto;
}

.schmal
{
	width: min(100% - 2.6rem, 39rem);
	margin-inline: auto;
}

/* ---- Typografie: zentrierte Überschriften gegen linksbündigen Fließtext ---- */

h1, h2, h3
{
	text-align: center;
	font-weight: 600;
	line-height: 1.16;
	margin: 0;
}

h1
{
	font-size: clamp(2.1rem, 1rem + 4.4vw, 4rem);
	letter-spacing: -.018em;
}

h2
{
	font-size: clamp(1.5rem, .95rem + 1.8vw, 2.15rem);
	letter-spacing: -.01em;
	margin-bottom: 1.5rem;
}

h3
{
	font-size: 1.06rem;
	letter-spacing: .1em;
	text-transform: uppercase;
	font-weight: 700;
	color: var(--tuerkis);
}

p
{
	margin: 0 0 1.15em;
	text-align: left;
}

.vor
{
	display: block;
	text-align: center;
	font-size: .82rem;
	letter-spacing: .28em;
	text-transform: uppercase;
	color: var(--tuerkis);
	margin-bottom: 1.6rem;
}

/* ---- Kopf ---- */

.kopf
{
	padding: clamp(3.4rem, 7vw, 6.6rem) 0 clamp(2.4rem, 5vw, 4rem);
}

.kopf__lead
{
	margin: 2.2rem auto 0;
	max-width: 38rem;
	font-size: 1.16em;
	color: #3a4643;
}

.kopf__bild
{
	margin-top: clamp(2.2rem, 5vw, 3.6rem);
}

.kopf__bild img
{
	width: 100%;
}

figure
{
	margin: 0;
}

figcaption
{
	margin-top: .8rem;
	font-size: .84rem;
	line-height: 1.6;
	color: var(--grau);
	max-width: 46rem;
}

/* ---- Hängende Spalten an gemeinsamer Oberkante ---- */

.haengen
{
	border-top: 2px solid var(--tinte);
	padding-top: 2.4rem;
	margin-top: clamp(3.4rem, 7vw, 5.6rem);
	display: grid;
	gap: clamp(1.8rem, 4vw, 3.4rem);
	align-items: start;
}

@media (min-width: 56rem)
{
	.haengen
	{
		grid-template-columns: repeat(3, 1fr);
	}

	.haengen > *:nth-child(2)
	{
		padding-top: 3.2rem;
	}

	.haengen > *:nth-child(3)
	{
		padding-top: 6.4rem;
	}
}

.haengen h3
{
	text-align: left;
	margin-bottom: .7rem;
}

.haengen p
{
	font-size: .96em;
	margin-bottom: .8em;
}

/* ---- Flächen ---- */

.flaeche
{
	background: var(--papier-tief);
	padding: clamp(3.4rem, 7vw, 6rem) 0;
	margin-top: clamp(3.6rem, 7vw, 6rem);
}

.flaeche--tief
{
	background: var(--tuerkis-tief);
	color: #e7f0ec;
}

.flaeche--tief h2
{
	color: #fff;
}

.flaeche--tief h3
{
	color: var(--tuerkis-blass);
}

.flaeche--tief a
{
	color: #fff;
}

/* ---- Das Feld, das sich leert ---- */

.feld
{
	margin: 2.6rem auto 0;
	max-width: 34rem;
	display: grid;
	grid-template-columns: repeat(10, 1fr);
	gap: .42rem;
}

.feld i
{
	display: block;
	aspect-ratio: 1;
	background: var(--tuerkis);
	border-radius: 50%;
	transition: opacity .5s ease, transform .5s ease;
}

.feld i.weg
{
	opacity: .14;
	transform: scale(.42);
}

.feld__legende
{
	display: flex;
	justify-content: space-between;
	gap: 1.4rem;
	max-width: 34rem;
	margin: .9rem auto 0;
	font-size: .8rem;
	letter-spacing: .04em;
	color: var(--grau);
}

.flaeche--tief .feld__legende
{
	color: var(--tuerkis-blass);
}

.flaeche--tief .feld i
{
	background: #7fc2b1;
}

/* ---- Regelblock ---- */

.regel
{
	margin: 2.8rem auto 0;
	max-width: 44rem;
	display: grid;
	gap: 1px;
	background: rgba(255, 255, 255, .22);
	border: 1px solid rgba(255, 255, 255, .22);
}

.regel > div
{
	background: var(--tuerkis-tief);
	padding: 1.5rem clamp(1.1rem, 3vw, 2rem);
}

.regel b
{
	display: block;
	font-size: .8rem;
	letter-spacing: .2em;
	text-transform: uppercase;
	color: var(--tuerkis-blass);
	margin-bottom: .4rem;
}

.regel p
{
	margin: 0;
}

@media (min-width: 46rem)
{
	.regel
	{
		grid-template-columns: 1fr 1fr;
	}

	.regel > div:last-child
	{
		grid-column: 1 / -1;
	}
}

/* ---- Bildpaar ---- */

.paar
{
	margin-top: clamp(3.4rem, 7vw, 5.4rem);
	display: grid;
	gap: clamp(1.6rem, 4vw, 3rem);
	align-items: center;
}

@media (min-width: 54rem)
{
	.paar
	{
		grid-template-columns: 1fr 1fr;
	}
}

.paar figcaption
{
	max-width: none;
}

.merksatz
{
	margin: clamp(3.4rem, 7vw, 5.4rem) auto 0;
	max-width: 40rem;
	text-align: center;
	font-size: clamp(1.4rem, .9rem + 1.7vw, 2rem);
	line-height: 1.34;
	font-weight: 600;
	letter-spacing: -.012em;
}

.merksatz span
{
	color: var(--tuerkis);
}

/* ---- ZEUS-Abschnitt ---- */

.knopf
{
	display: inline-block;
	margin-top: 1.4rem;
	padding: .82rem 1.7rem;
	background: var(--tuerkis);
	color: #fff;
	text-decoration: none;
	font-weight: 600;
	letter-spacing: .02em;
	border-radius: 2px;
}

.knopf:hover
{
	background: #2f6d61;
}

/* ---- Die beiden Siegel: waagrechter Weg mit dem Punkt aus dem Feld ---- */

.weg
{
	margin: clamp(2.6rem, 5vw, 3.8rem) auto 0;
	max-width: 44rem;
	display: grid;
	gap: 1.2rem;
	justify-items: center;
	align-items: center;
}

@media (min-width: 42rem)
{
	.weg
	{
		grid-template-columns: 1fr auto 1.34fr;
		gap: clamp(1rem, 3vw, 2rem);
	}
}

.weg figure
{
	margin: 0;
	min-width: 0;
	text-align: center;
}

.weg__rolle
{
	display: block;
	font-size: .74rem;
	letter-spacing: .26em;
	text-transform: uppercase;
	color: var(--tuerkis);
	margin-bottom: .9rem;
}

.weg a
{
	display: block;
	background: #fff;
	border: 1px solid rgba(63, 133, 120, .35);
	padding: clamp(.7rem, 2vw, 1.1rem);
	margin-inline: auto;
}

.weg--voraus a { width: min(9rem, 44vw); }
.weg--folge  a { width: min(12.5rem, 60vw); }

.weg img
{
	width: 100%;
}

.weg figcaption
{
	margin-inline: auto;
	max-width: 21rem;
	text-align: left;
}

/* der Übergang: eine Linie mit dem Punkt, der auf dieser Seite für
   ein einzelnes Tier steht */
.uebergang
{
	margin: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: .55rem;
	color: var(--tuerkis);
	font-size: .74rem;
	letter-spacing: .2em;
	text-transform: uppercase;
	flex-direction: column;
}

.uebergang i
{
	width: .58rem;
	height: .58rem;
	border-radius: 50%;
	background: var(--tuerkis);
	flex: none;
}

.uebergang::before,
.uebergang::after
{
	content: "";
	width: 1px;
	height: 1.6rem;
	background: rgba(63, 133, 120, .55);
	flex: none;
}

@media (min-width: 42rem)
{
	.uebergang
	{
		flex-direction: row;
	}

	.uebergang::before,
	.uebergang::after
	{
		width: clamp(1.4rem, 3vw, 2.6rem);
		height: 1px;
	}
}

/* ---- Querlinks: große blasse Nummer neben kleinem Text ---- */

.themen
{
	padding: clamp(3.6rem, 7vw, 6rem) 0 clamp(2.6rem, 5vw, 4rem);
}

.themen:not(:has(a))
{
	display: none;
}

.themenliste
{
	list-style: none;
	margin: 2.4rem 0 0;
	padding: 0;
	counter-reset: t;
	display: grid;
	gap: .3rem;
}

@media (min-width: 50rem)
{
	.themenliste
	{
		grid-template-columns: 1fr 1fr;
		column-gap: 3rem;
	}
}

.themenliste li
{
	display: grid;
	grid-template-columns: 3.1rem 1fr;
	align-items: baseline;
	gap: .7rem;
	padding: .5rem 0;
	border-bottom: 1px solid rgba(35, 44, 42, .1);
}

.themenliste li[hidden]
{
	display: none;
}

.themenliste li:not([hidden])
{
	counter-increment: t;
}

.themenliste li:not([hidden])::before
{
	content: counter(t, decimal-leading-zero);
	font-size: 2.2rem;
	font-weight: 700;
	line-height: 1;
	color: rgba(63, 133, 120, .28);
	letter-spacing: -.03em;
}

.themenliste a
{
	font-size: .93rem;
	line-height: 1.5;
	color: var(--tinte);
	text-decoration: none;
}

.themenliste a:hover
{
	color: var(--tuerkis-tief);
	text-decoration: underline;
	text-underline-offset: .22em;
}

/* ---- Fuß: dreispaltig auf türkiser Fläche, ohne Linien ---- */

.fuss
{
	background: var(--tuerkis-tief);
	color: #cfdedb;
	padding: clamp(2.8rem, 6vw, 4.4rem) 0;
	font-size: .85rem;
	line-height: 1.72;
}

.fuss__raster
{
	display: grid;
	gap: 2rem clamp(2rem, 5vw, 4rem);
}

@media (min-width: 52rem)
{
	.fuss__raster
	{
		grid-template-columns: repeat(3, 1fr);
	}
}

.fuss b
{
	display: block;
	color: #fff;
	font-size: .74rem;
	letter-spacing: .2em;
	text-transform: uppercase;
	font-weight: 700;
	margin-bottom: .5rem;
}

.fuss a
{
	color: #fff;
	text-decoration: none;
	border-bottom: 1px solid rgba(127, 194, 177, .7);
}

.fuss a:hover
{
	border-bottom-color: #fff;
}

/* ---- Bewegung ---- */

.auf
{
	opacity: 0;
	transform: translateY(1.1rem);
	transition: opacity .7s ease, transform .7s ease;
}

.auf.da
{
	opacity: 1;
	transform: none;
}

@media (prefers-reduced-motion: reduce)
{
	html
	{
		scroll-behavior: auto;
	}

	.auf
	{
		opacity: 1;
		transform: none;
		transition: none;
	}

	.feld i
	{
		transition: none;
	}
}

/* ---- Weitergeben: Botschaft breit, die Elemente als Marginalie daneben ---- */

.weiter
{
	padding: clamp(2.4rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 4.6rem);
	border-top: 1px solid rgba(35, 44, 42, .16);
	display: grid;
	gap: clamp(1.6rem, 4vw, 3.2rem);
	align-items: start;
}

@media (min-width: 56rem)
{
	.weiter
	{
		grid-template-columns: 1fr 15.5rem;
	}
}

.weiter__satz h2
{
	text-align: left;
	font-size: clamp(1.3rem, 1rem + 1vw, 1.7rem);
	margin-bottom: .9rem;
}

.weiter__satz p
{
	margin: 0;
	max-width: 40rem;
	color: #3a4643;
}

.weiter__rand
{
	border-top: 2px solid var(--tinte);
	padding-top: .9rem;
}

@media (min-width: 56rem)
{
	.weiter__rand
	{
		border-top: 0;
		border-left: 1px solid rgba(63, 133, 120, .45);
		padding: .2rem 0 .2rem 1.2rem;
	}
}

.weiter__rolle
{
	display: block;
	font-size: .74rem;
	letter-spacing: .26em;
	text-transform: uppercase;
	color: var(--tuerkis);
	margin-bottom: .8rem;
}

.weiter__rand ul
{
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: .1rem;
}

.weiter__rand a,
.weiter__rand button
{
	display: flex;
	align-items: center;
	gap: .6rem;
	width: 100%;
	padding: .32rem 0;
	background: none;
	border: 0;
	font: inherit;
	font-size: .88rem;
	line-height: 1.4;
	text-align: left;
	color: var(--tinte);
	text-decoration: none;
	cursor: pointer;
}

.weiter__rand svg
{
	width: 1.15rem;
	height: 1.15rem;
	flex: none;
	stroke-linecap: round;
	stroke-linejoin: round;
	color: var(--tuerkis);
}

.weiter__rand a:hover,
.weiter__rand button:hover
{
	color: var(--tuerkis-tief);
	text-decoration: underline;
	text-underline-offset: .22em;
}

/* ---- Mitscrollende Leiste: links, schlichte Icon-Spalte ohne Kasten ---- */

.rand-leiste
{
	display: none;
}

@media (min-width: 88rem)
{
	.rand-leiste
	{
		display: grid;
		gap: .35rem;
		position: fixed;
		left: max(1.2rem, calc((100vw - 74rem) / 2 - 3.6rem));
		top: 50%;
		transform: translateY(-50%);
		z-index: 20;
	}

	.rand-leiste a,
	.rand-leiste button
	{
		display: grid;
		place-items: center;
		width: 2.3rem;
		height: 2.3rem;
		padding: 0;
		background: none;
		border: 0;
		color: var(--grau);
		cursor: pointer;
	}

	.rand-leiste svg
	{
		width: 1.2rem;
		height: 1.2rem;
		stroke-linecap: round;
		stroke-linejoin: round;
	}

	.rand-leiste a:hover,
	.rand-leiste button:hover,
	.rand-leiste .kopiert
	{
		color: var(--tuerkis-tief);
	}
}

/* Die zwei JavaScript-Elemente bleiben ohne Skript verborgen */
.weiter__rand [hidden],
.rand-leiste [hidden]
{
	display: none;
}