@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/SourceSerif4Variable-Roman.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("../fonts/SourceSans3VF-Upright.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("../fonts/SourceSans3VF-Italic.woff2") format("woff2");
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --papier: #FCFCFA;  --tinte: #1A1A1A;  --petrol: #175E68;  --petrol-dunkel: #10454D;  --aqua: #A9DED6;  --graumint: #E9F0EE;  --orange: #E07C36;  --orange-dunkel: #AF4D09;
  --linie: #DCE5E2;  --gedeckt: #4A4A4A;
  --schrift-kopf: "Source Serif 4", Georgia, "Times New Roman", serif;
  --schrift-text: "Source Sans 3", system-ui, "Segoe UI", Arial, sans-serif;

  --breite-satz: 70ch;  --breite-seite: 72rem;
  --radius: 8px;

  --tempo: 200ms;
  --kurve: cubic-bezier(0, 0, 0.35, 1);
}

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--papier);
  color: var(--tinte);
  font-family: var(--schrift-text);
  font-size: 1.0625rem;  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 48em) {
  body {
    font-size: 1.125rem;  }
}

main {
  flex: 1;
}

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

p,
ul,
ol,
dl,
blockquote {
  max-width: var(--breite-satz);
}

.nav-liste,
.untermenu ul,
.saeulen,
.kachelraster,
.fuss ul,
.knopfzeile {
  max-width: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--schrift-kopf);
  font-weight: 600;
  line-height: 1.18;
  color: var(--tinte);
  max-width: 34ch;
}

h1 {
  font-size: clamp(2.1rem, 4.5vw + 1rem, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 26ch;
}

h2 {
  font-size: clamp(1.55rem, 2.2vw + 0.8rem, 2.15rem);
}

h3 {
  font-size: clamp(1.25rem, 1vw + 1rem, 1.4rem);
}

h4 {
  font-size: 1.125rem;
}

.vorspann {
  font-size: clamp(1.15rem, 0.8vw + 1rem, 1.3rem);
  line-height: 1.55;
  color: var(--gedeckt);
}

.quellenzeile {
  font-size: 0.9rem;
  color: var(--gedeckt);
  margin-top: 0.75rem;
}

hr {
  border: 0;
  border-top: 1px solid var(--linie);
  margin-block: 2rem;
}

::selection {
  background: var(--aqua);
  color: var(--tinte);
}

:focus-visible {
  outline: 3px solid var(--petrol);
  outline-offset: 2px;
}

.fuss :focus-visible,
.kachel:focus-visible {
  outline-color: var(--orange);
}

a {
  color: var(--petrol);
  text-decoration: none;
  background-image:
    linear-gradient(var(--orange), var(--orange)),
    linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 0 2px, 100% 1px;
  background-position: 0 100%, 0 100%;
  transition: background-size var(--tempo) var(--kurve);
}

a:hover,
a:focus-visible {
  background-size: 100% 2px, 100% 1px;
}

.knopf,
.wortmarke,
.kachel,
.springen {
  background-image: none;
}

.navigation a,
.fuss a {
  color: inherit;
  background-image: linear-gradient(var(--orange), var(--orange));
  background-size: 0 2px;
  background-position: 0 100%;
  padding-bottom: 0.15em;
}

.navigation a:hover,
.navigation a:focus-visible,
.fuss a:hover,
.fuss a:focus-visible {
  background-size: 100% 2px;
}

.navigation a[aria-current="page"] {
  background-size: 100% 2px;
  font-weight: 600;
}

.umfang {
  width: 100%;
  max-width: var(--breite-seite);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.umfang--schmal {
  max-width: 48rem;
}

.abschnitt {
  padding-block: clamp(2.75rem, 7vw, 4.5rem);
}

.abschnitt--band {
  background: var(--graumint);
}

.fluss > * + * {
  margin-top: 1em;
}

.fluss > h2 {
  margin-top: 1.75em;
}

.fluss > h3 {
  margin-top: 1.4em;
}

.fluss ol > li + li,
.fluss ul > li + li {
  margin-top: 0.6em;
}

.fluss > .kicker {
  margin-top: 2.2em;
}

.fluss > .kicker + p,
.fluss > .kicker + figure {
  margin-top: 0.5em;
}

.fluss > h4 {
  margin-top: 1.3em;
}

h2.klein {
  font-size: 1.15rem;
}

.springen {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--petrol);
  color: #fff;
  font-weight: 600;
  transform: translateY(-120%);
  transition: transform 150ms var(--kurve);
}

.springen:focus-visible {
  transform: translateY(0);
  outline-color: var(--orange);
}

.kopf {
  border-bottom: 1px solid var(--linie);
  background: var(--papier);
}

.kopf-zeile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem;
}

.wortmarke {
  font-family: var(--schrift-kopf);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--tinte);
  line-height: 1.2;
}

.wortmarke small {
  display: block;
  font-family: var(--schrift-text);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--petrol);
}

.wortmarke small .trenner {
  display: inline-block;
  width: 0.32em;
  height: 0.32em;
  border-radius: 50%;
  background: var(--orange-dunkel);
  vertical-align: 0.17em;
  margin-inline: 0.08em;
}

.nav-schalter {
  display: none;
  align-items: center;
  gap: 0.5em;
  border: 1px solid var(--linie);
  border-radius: var(--radius);
  background: transparent;
  color: var(--tinte);
  font: 600 1rem var(--schrift-text);
  padding: 0.5em 0.9em;
  cursor: pointer;
}

.nav-schalter::before {
  content: "";
  width: 1.05em;
  height: 0.8em;
  background:
    linear-gradient(var(--tinte), var(--tinte)) 0 0 / 100% 2px,
    linear-gradient(var(--tinte), var(--tinte)) 0 50% / 100% 2px,
    linear-gradient(var(--tinte), var(--tinte)) 0 100% / 100% 2px;
  background-repeat: no-repeat;
}

.js .nav-schalter {
  display: inline-flex;
}

.navigation {
  border-top: 1px solid var(--linie);
}

.nav-liste {
  list-style: none;
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-liste a,
.nav-liste .untermenu summary {
  display: inline-block;
  padding-block: 0.35rem;
  color: var(--petrol);
  font-size: 1rem;
}

.navigation a:hover,
.navigation a:focus-visible,
.untermenu summary:hover,
.untermenu summary:focus-visible {
  color: var(--petrol-dunkel);
}

.js .navigation {
  display: none;
}

.js .navigation.offen {
  display: block;
}

.untermenu {
  position: relative;
}

.untermenu summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
}

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

.untermenu summary::after {
  content: "";
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  margin-left: 0.45em;
  border-right: 2px solid var(--petrol);
  border-bottom: 2px solid var(--petrol);
  transform: rotate(45deg) translateY(-0.1em);
  transition: transform 150ms var(--kurve);
}

.untermenu[open] > summary::after {
  transform: rotate(-135deg) translateY(-0.15em);
}

.untermenu ul {
  list-style: none;
  padding: 0.25rem 0 0.25rem 1.1rem;
  border-left: 2px solid var(--aqua);
  margin: 0.25rem 0 0.25rem 0.1rem;
  display: grid;
  gap: 0.15rem;
}

@media (min-width: 56em) {
  .js .navigation,
  .navigation {
    display: block;
  }

  .js .nav-schalter {
    display: none;
  }

  .nav-liste {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem clamp(0.9rem, 1.8vw, 1.6rem);
    padding: 0.6rem 0;
  }

  .nav-liste a,
  .nav-liste .untermenu summary {
    font-size: 0.95rem;
  }

  .untermenu ul {
    position: absolute;
    top: calc(100% + 0.4rem);
    left: -1rem;
    min-width: 14.5rem;
    background: var(--papier);
    border: 1px solid var(--linie);
    border-left: 2px solid var(--aqua);
    border-radius: var(--radius);
    box-shadow: 0 10px 24px rgba(26, 26, 26, 0.09);
    padding: 0.6rem 1rem;
    margin: 0;
    z-index: 20;
  }
}

.knopf {
  display: inline-block;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--petrol);
  color: #fff;
  font: 600 1rem/1.3 var(--schrift-text);
  padding: 0.7em 1.5em;
  cursor: pointer;
  text-align: center;
  transition:
    background-color var(--tempo) var(--kurve),
    color var(--tempo) var(--kurve),
    border-color var(--tempo) var(--kurve);
}

.knopf:hover,
.knopf:focus-visible {
  background: var(--petrol-dunkel);
  color: #fff;
}

.knopf--zweit {
  background: transparent;
  color: var(--petrol);
  border-color: var(--petrol);
}

.knopf--zweit:hover,
.knopf--zweit:focus-visible {
  background: var(--graumint);
  color: var(--petrol-dunkel);
  border-color: var(--petrol-dunkel);
}

.knopfzeile {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.kasten {
  background: var(--graumint);
  border-left: 3px solid var(--petrol);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  max-width: var(--breite-satz);
}

.kasten--akzent {
  border-left-color: var(--orange);
}

.kasten--still {
  border-left-color: transparent;
}

.markierung {
  --markierung-hoehe: 0.8em;
  --markierung-oben: 0.3em;
  background-color: transparent;
  color: inherit;
  background-image: linear-gradient(var(--aqua), var(--aqua));
  background-repeat: no-repeat;
  background-position: 0 var(--markierung-oben);
  background-size: 100% var(--markierung-hoehe);
  padding-inline: 0.14em;
  border-radius: 2px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.buehne h1 .markierung {
  background-size: 0% var(--markierung-hoehe);
  animation: markierung-zeichnen 1000ms var(--kurve) 350ms forwards;
}

@keyframes markierung-zeichnen {
  to {
    background-size: 100% var(--markierung-hoehe);
  }
}

.buehne {
  padding-block: clamp(2.75rem, 7vw, 5rem) clamp(2rem, 5vw, 3.5rem);
}

.buehne h1 {
  max-width: 22ch;
}

.buehne .vorspann {
  margin-top: 1.25rem;
}

.buehne .knopfzeile {
  margin-top: 1.75rem;
}

.buehne-start {
  padding-block: 0;
  max-width: var(--breite-seite);
  margin-inline: auto;
}

.buehne-start .buehne-text {
  padding-block: clamp(2.5rem, 7vw, 4.5rem) clamp(1.5rem, 4vw, 2.25rem);
}

.buehne-start .vorspann {
  margin-top: 1rem;
}

.buehne-start .buehne-bild {
  display: block;
}

.buehne-start .buehne-bild img {
  width: 100%;
  height: auto;
  border-radius: 2px;
}

.buehne-start h1 {
  font-size: min(clamp(2.1rem, 4.5vw + 1rem, 3.3rem), 7.5vw);
  max-width: 30ch;
}

@media (min-width: 48em) {
  .buehne-start {
    position: relative;
  }

  .buehne-start::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
      90deg,
      rgba(252, 252, 250, 0.6) 0,
      rgba(252, 252, 250, 0.6) 44%,
      rgba(252, 252, 250, 0) 53%
    );
  }

  .buehne-start .buehne-text {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    padding-block: 0;
  }

  .buehne-start .buehne-text .umfang {
    width: 100%;
  }

  .buehne-start h1 {
    font-size: clamp(2rem, 2.4vw + 0.6rem, 2.75rem);
    max-width: 31rem;
    color: var(--tinte);
  }

  .buehne-start .vorspann {
    color: var(--tinte);
    max-width: 28rem;
  }
}

.saeulen {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr));
}

.karte {
  background: #fff;
  border: 0.5px solid var(--linie);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.karte--akzent {
  background: var(--graumint);
  border-left: 3px solid var(--orange);
}

.kicker {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-dunkel);}

.karte .weiter {
  margin-top: auto;
  padding-top: 0.75rem;
  font-weight: 600;
}

.breitbild {
  --breitbild-breite: min(67rem, calc(100vw - 2 * clamp(1.25rem, 4vw, 2.5rem)));
  width: var(--breitbild-breite);
  max-width: none;
  margin-inline: calc((100% - var(--breitbild-breite)) / 2);
}

.video.breitbild figcaption {
  max-width: var(--breite-satz);
  margin-inline: auto;
}

.figur img {
  width: 100%;
}

.figur picture,
.kachel picture {
  display: block;
  overflow: hidden;
  border-radius: 2px;
}

.figur > img,
.kachel > img {
  border-radius: 2px;
}

.figur figcaption,
.kachel figcaption {
  color: var(--gedeckt);
  font-size: 0.9rem;
  line-height: 1.45;
  padding-top: 0.5rem;
}

.kachel {
  display: block;
}

.kachel img {
  width: 100%;
  transition: transform var(--tempo) var(--kurve);
}

.kachel:hover img,
.kachel:focus-visible img {
  transform: scale(1.03);}

.kachelraster {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr));
}

.bild-platzhalter {
  background:
    repeating-linear-gradient(
      -45deg,
      var(--graumint) 0 14px,
      var(--papier) 14px 28px
    );
  border: 1px dashed var(--linie);
  border-radius: 2px;
  display: grid;
  place-items: center;
  color: var(--gedeckt);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
}

.profil {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 56em) {
  .profil {
    grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
  }
}

.faktenspalte {
  background: #fff;
  border: 1px solid var(--linie);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.faktenspalte > * + * {
  margin-top: 1.1rem;
}

.faktenspalte h2.klein + p {
  margin-top: 0.25rem;
}

.faktenspalte p {
  font-size: 0.95rem;
  line-height: 1.55;
}

.vertrauen {
  border-block: 1px solid var(--linie);
  padding-block: 1.4rem;
}

.vertrauen p {
  max-width: none;
  text-align: center;
  font-size: 0.98rem;
  color: var(--gedeckt);
}

.vertrauen-titel {
  font-family: var(--schrift-text);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-dunkel);
  text-align: center;
  max-width: none;
  margin-bottom: 0.4rem;
}

.umschalter {
  max-width: var(--breite-satz);
}

.umschalter-knoepfe {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.umschalter-knoepfe {
  display: none;
}

.js .umschalter-knoepfe {
  display: flex;
}

.umschalter-knopf {
  border: 2px solid var(--petrol);
  border-radius: var(--radius);
  background: transparent;
  color: var(--petrol);
  font: 600 0.95rem/1.3 var(--schrift-text);
  padding: 0.5em 1.1em;
  cursor: pointer;
  transition:
    background-color var(--tempo) var(--kurve),
    color var(--tempo) var(--kurve);
}

.umschalter-knopf:hover {
  background: var(--graumint);
}

.umschalter-knopf[aria-pressed="true"] {
  background: var(--petrol);
  color: #fff;
}

.umschalter-tafel {
  background: var(--papier);
  border: 1px solid var(--linie);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
}

.umschalter-zeile {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 56em) {
  .umschalter-zeile {
    grid-template-columns: minmax(0, var(--breite-satz)) minmax(0, 20rem);
    align-items: stretch;
  }

  .umschalter-zeile > .figur {
    height: 100%;
    overflow: hidden;
    border-radius: 2px;
  }

  .umschalter-zeile > .figur picture {
    height: 100%;
  }

  .umschalter-zeile > .figur img {
    height: 100%;
    object-fit: cover;
    object-position: 50% 35%;
  }
}

.umschalter-tafel + .umschalter-tafel {
  margin-top: 1rem;
}

.js .umschalter-tafel + .umschalter-tafel {
  margin-top: 0;
}

.js .umschalter-label {
  display: none;
}

.js .umschalter {
  display: grid;
}

.js .umschalter-knoepfe {
  grid-row: 1;
  grid-column: 1;
}

.js .umschalter-tafel {
  grid-row: 2;
  grid-column: 1;
}

.js .umschalter-tafel[hidden] {
  display: block;
  visibility: hidden;
}

.umschalter--aktiv .umschalter-tafel:not([hidden]) {
  animation: einblenden 180ms var(--kurve);
}

@keyframes einblenden {
  from {
    opacity: 0;
  }
}

.video {
  max-width: var(--breite-satz);
}

.video video {
  width: 100%;
  border-radius: 2px;
  background: var(--graumint);
}

.video figcaption {
  color: var(--gedeckt);
  font-size: 0.9rem;
  line-height: 1.45;
  padding-top: 0.5rem;
}

.video figcaption p + p {
  margin-top: 0.4rem;
}

.video-rahmen {
  position: relative;
}

.video-start {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.video-start[hidden] {
  display: none;
}

.video-start .video-abspielzeichen {
  display: grid;
  place-items: center;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 50%;
  background: var(--petrol);
  box-shadow: 0 4px 18px rgba(26, 26, 26, 0.35);
  transition: background-color var(--tempo) var(--kurve);
}

.video-start:hover .video-abspielzeichen,
.video-start:focus-visible .video-abspielzeichen {
  background: var(--petrol-dunkel);
}

.video-start .video-abspielzeichen::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 1.5rem solid #fff;
  border-top: 0.95rem solid transparent;
  border-bottom: 0.95rem solid transparent;
  margin-left: 0.3rem;
}

.nach-oben {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 50;
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border: 0;
  border-radius: 50%;
  background: var(--petrol);
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(26, 26, 26, 0.25);
  transition: background-color var(--tempo) var(--kurve);
}

.nach-oben[hidden] {
  display: none;
}

.nach-oben:hover,
.nach-oben:focus-visible {
  background: var(--petrol-dunkel);
}

.nach-oben::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 0.5rem solid transparent;
  border-right: 0.5rem solid transparent;
  border-bottom: 0.65rem solid #fff;
  margin-top: -0.1rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

input:not([type="checkbox"]):not([type="radio"]),
textarea,
select {
  width: 100%;
  max-width: var(--breite-satz);
  font: inherit;
  color: var(--tinte);
  background: #fff;
  border: 1px solid #767676;
  border-radius: var(--radius);
  padding: 0.55em 0.8em;
}

.formularfeld + .formularfeld {
  margin-top: 1.1rem;
}

.platzhalter {
  font-style: italic;
  color: var(--gedeckt);
  border: 1px dashed #A5B1AD;
  border-radius: var(--radius);
  padding: 0.05em 0.35em;
  background: rgba(233, 240, 238, 0.5);
}

.fuss .platzhalter {
  color: rgba(252, 252, 250, 0.8);
  border-color: rgba(252, 252, 250, 0.45);
  background: rgba(252, 252, 250, 0.08);
}

.fuss {
  background: var(--tinte);
  color: var(--papier);
  margin-top: clamp(2.75rem, 7vw, 4.5rem);
  padding-block: clamp(2.25rem, 5vw, 3.25rem) 1.5rem;
  font-size: 0.98rem;
}

.fuss-spalten {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
  padding-bottom: 2rem;
}

.fuss h2 {
  color: var(--papier);
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.fuss ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.fuss-rechtliches {
  border-top: 1px solid rgba(252, 252, 250, 0.25);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
  font-size: 0.9rem;
  color: rgba(252, 252, 250, 0.85);
}

.nur-vorlesen {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.zentriert {
  text-align: center;
}

.zentriert > * {
  margin-inline: auto;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }

  .buehne h1 .markierung {
    animation: none;
    background-size: 100% var(--markierung-hoehe);
  }
}