* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-y: scroll;
  height: 100%;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #333;
}

/* Normaler Hintergrund für alle anderen Seiten */

body {
  background: url('/background.jpg') no-repeat center center fixed;
  background-size: cover;
}

/* Sprachumschaltung */

.lang-switch {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
}

.lang-switch a {
  display: inline-block;
  padding: 4px 10px;
  margin-right: 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  text-decoration: none;
  border-radius: 3px;
  font-size: 13px;
  font-weight: bold;
}

.lang-switch a.active {
  background: #c0392b;
}

/* Seitenlayout */

.layout {
  display: flex;
  min-height: 100vh;
  height: auto;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 13.34%;
  height: 100vh;
  overflow-y: scroll;
  padding: 200px 10px 10px 10px;
}

.sidebar ul {
  list-style: none;
}

.sidebar li {
  margin-bottom: 6px;
}

.sidebar a {
  display: block;
  padding: 10px 14px;
  text-align: center;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 21px;
  transition: background 0.2s, color 0.2s;
}

.sidebar a:hover {
  background: rgba(255,255,255,0.15);
  color: #ff3333;
}

.sidebar a.active {
  background: rgba(255,255,255,0.15);
  color: #888;
}

/* Inhaltsbereich */

.content {
  flex: 1;
  margin-left: 13.34%;
  max-width: none;
  height: 100vh;
  overflow-y: auto;
  background: linear-gradient(to right, transparent 7.7%, rgba(77, 67, 67, 0.7) 7.7% 82.3%, transparent 82.3%);
  color: #ffffff;
  padding: 2.7rem calc(5.4rem + 15vw) 5.4rem calc(5.4rem + 6.66vw);
  font-size: 18px;
  line-height: 1.5;
  font-weight: 500;
}

.content h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.content p {
  margin-bottom: 0.5em;
}

.content p:last-of-type {
  margin-top: 1rem;
}

.content a {
  color: #ffffff;
}

/* Bildkarussell */

.carousel {
  width: 100%;
  margin-top: 2rem;
}

.carousel-main {
  width: 100%;
}

.carousel-slide {
  display: none;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.carousel-slide.active {
  display: block;
}

.carousel-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.carousel-thumb {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.6;
  transition: opacity 0.3s, border-color 0.3s;
}

.carousel-thumb:hover {
  opacity: 1;
}

.carousel-thumb.active {
  border-color: #ffffff;
  opacity: 1;
}

/* Logo */

.sidebar-logo {
  position: fixed;
  top: 50px;
  left: 10px;
  width: 213px;
  z-index: 101;
}

/* Fußbereich der Navigation */

.sidebar-footer {
  margin-top: 30px;
  font-size: 19px;
  line-height: 1.5;
  color: #ccc;
  text-align: center;
}

.sidebar-footer a {
  display: inline;
  padding: 0;
  margin: 0;
  color: #ccc;
  text-decoration: none;
}

.sidebar-footer a:hover {
  color: #d4a800;
  text-decoration: none;
}

/* ==========================================
   GREYHOUND – wechselnder Vollbild-Hintergrund
   Nur auf der Greyhound-Seite
   ========================================== */

body.greyhound-page {
  position: relative;
  isolation: isolate;
  background: none;
}

/* Hintergrund ganz nach hinten */

.greyhound-background {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

/* Beide Hintergrundbilder */

.greyhound-background .background-image {
  position: absolute;
  inset: 0;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  animation: greyhoundFade 16s linear infinite;
}

/* Erstes Bild */

.greyhound-background .background-one {
  background-image: url('/images/greyhound/background/01BackGreyhound.jpg');
  animation-delay: 0s;
}

/* Zweites Bild */

.greyhound-background .background-two {
  background-image: url('/images/greyhound/background/02BackGreyhound.jpg');
  animation-delay: -8s;
}

/* Sanfter Wechsel zwischen den Bildern */

@keyframes greyhoundFade {
  0%, 5% {
    opacity: 1;
  }

  45% {
    opacity: 1;
  }

  55% {
    opacity: 0;
  }

  95% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

/* Seiteninhalt liegt über den Hintergrundbildern */

body.greyhound-page .layout {
  position: relative;
  z-index: 1;
}

body.greyhound-page .lang-switch {
  z-index: 100;
}

body.greyhound-page .sidebar-logo {
  z-index: 101;
}

/* SUPER KLIMA – wechselnder Vollbild-Hintergrund */

body.super-klima-page {
  position: relative;
  background: transparent;
}

body.super-klima-page .super-klima-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

body.super-klima-page .super-klima-background .background-image {
  position: absolute;
  inset: 0;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

body.super-klima-page .super-klima-background .background-image.active {
  opacity: 1;
}

body.super-klima-page .layout {
  position: relative;
  z-index: 1;
}

body.super-klima-page .lang-switch {
  z-index: 100;
}

body.super-klima-page .sidebar-logo {
  z-index: 101;
}
/* NIGHTLINER – wechselnder Vollbild-Hintergrund */

body.nightliner-page {
  position: relative;
  background: transparent;
}

body.nightliner-page .nightliner-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

body.nightliner-page .nightliner-background .background-image {
  position: absolute;
  inset: 0;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

body.nightliner-page .nightliner-background .background-image.active {
  opacity: 1;
}

body.nightliner-page .layout {
  position: relative;
  z-index: 1;
}

body.nightliner-page .lang-switch {
  z-index: 100;
}

body.nightliner-page .sidebar-logo {
  z-index: 101;
}

/* Nightliner: Seitenhöhe und rechter Dokument-Scrollbalken */
body.nightliner-page {
  height: auto;
  min-height: 100vh;
  overflow-y: visible;
}

/* Gemeinsames Hintergrundsystem für alle Seiten */
.page-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-background .background-image {
  position: absolute;
  inset: 0;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

.page-background .background-image.active {
  opacity: 1;
}

/* Seiteninhalt vor dem Hintergrund halten */
.layout {
  position: relative;
  z-index: 1;
}

/* Bilder direkt im Seitentext */
.intext-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 2rem auto;
}

/* Untermenü Kundenprojekte */
.sidebar .submenu {
  margin-top: 2px;
  margin-bottom: 8px;
  padding-left: 12px;
}

.sidebar .submenu li {
  margin-bottom: 2px;
}

.sidebar .submenu a {
  color: #ffcc00;
  font-size: 17px;
  padding: 6px 8px;
  text-align: left;
}

.sidebar .submenu a:hover {
  color: #ffe066;
  background: rgba(255,255,255,0.15);
}

.sidebar .submenu a.active {
  color: #ffcc00;
  background: rgba(255,255,255,0.15);
}

/* Zentrierte Überschrift für das Ducato-Kundenprojekt */
.centered-title {
  text-align: center;
}

/* Dokument-Scrollen auf allen Seiten sicherstellen */
html,
body {
  height: auto;
  min-height: 100%;
}

html {
  overflow-y: scroll;
}

body {
  overflow-y: visible;
}

/* Getrennte Scrollbereiche für Navigation und Inhalt */
.sidebar,
.content {
  overscroll-behavior-y: contain;
}

/* Das Gesamtdokument selbst scrollt nicht */
html,
body {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

/* Auch die Nightliner-Seite verwendet die getrennten Scrollbereiche */
body.nightliner-page {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}


/* ==========================================================
   Responsive Ergänzungen
   Das bisherige Desktop-Layout bleibt unverändert.
   Tablet und Smartphone erhalten eigene Layoutregeln.
   ========================================================== */

/* Medien sollen nie breiter als ihr Inhaltsbereich werden. */
.content img,
.content video,
.content iframe,
.content-area img,
.page-text img {
  max-width: 100%;
}

.content img,
.content-area img,
.page-text img {
  height: auto;
}

.content-area,
.page-text {
  min-width: 0;
  overflow-wrap: anywhere;
}


/* Flüssige Logo-Größe für Desktop-Bildschirme.
   Die Smartphone-Regeln darunter bleiben unverändert. */
@media (min-width: 1101px) {
  .sidebar-logo {
    top: clamp(32px, 3.125vw, 50px);
    left: clamp(8px, 0.7vw, 10px);
    width: clamp(145px, 13.34vw, 213px);
    height: auto;
  }
}

/* Auf mittleren Bildschirmen etwas mehr Platz für den Inhalt. */
@media (min-width: 761px) and (max-width: 1100px) {
  .sidebar {
    width: 205px;
    padding: 175px 8px 16px;
  }

  .sidebar-logo {
    top: 35px;
    left: 8px;
    width: 185px;
    max-width: calc(205px - 16px);
    height: auto;
  }

  .sidebar a {
    padding: 9px 8px;
    font-size: 17px;
  }

  .sidebar .submenu a {
    font-size: 15px;
  }

  .sidebar-footer {
    font-size: 14px;
    overflow-wrap: anywhere;
  }

  .content {
    margin-left: 205px;
    padding: 2.5rem clamp(1.5rem, 4vw, 3rem);
    font-size: clamp(16px, 1.7vw, 18px);
  }
}

/* Smartphone und schmale Tablets: Navigation als aufklappbares Menü. */
.nav-toggle {
  display: none;
}

@media (max-width: 760px) {
  html,
  body,
  body.nightliner-page {
    width: 100%;
    height: auto;
    min-height: 100%;
    min-height: 100svh;
    overflow-x: hidden;
    overflow-y: auto;
  }

  body {
    background-attachment: scroll;
  }

  .layout {
    display: block;
    width: 100%;
    min-height: 100svh;
    height: auto;
  }

  .sidebar-logo {
    position: fixed;
    top: 10px;
    left: 12px;
    width: min(38vw, 150px);
    height: auto;
    z-index: 102;
  }

  .lang-switch {
    position: fixed;
    top: 12px;
    right: 12px;
    left: auto;
    z-index: 104;
  }

  .lang-switch a {
    padding: 7px 10px;
    margin-left: 3px;
    margin-right: 0;
    font-size: 13px;
  }

  .nav-toggle {
    display: flex;
    position: fixed;
    top: 58px;
    right: 12px;
    z-index: 105;
    width: 48px;
    height: 44px;
    padding: 10px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    border: 1px solid rgba(255,255,255,.55);
    border-radius: 5px;
    background: rgba(20,20,20,.88);
    cursor: pointer;
  }

  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    transition: transform .2s ease, opacity .2s ease;
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-7px) rotate(-45deg);
  }

  .sidebar {
    display: none;
    position: fixed;
    top: 112px;
    right: 10px;
    bottom: 10px;
    left: 10px;
    z-index: 103;
    width: auto;
    height: auto;
    max-height: calc(100svh - 122px);
    overflow-x: hidden;
    overflow-y: auto;
    padding: 12px 12px 20px;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 6px;
    background: rgba(18,18,18,.97);
    box-shadow: 0 8px 28px rgba(0,0,0,.45);
  }

  .sidebar.is-open {
    display: block;
  }

  .sidebar li {
    margin-bottom: 3px;
  }

  .sidebar a {
    padding: 11px 12px;
    text-align: left;
    font-size: 18px;
    line-height: 1.3;
  }

  .sidebar .submenu {
    margin: 2px 0 8px;
    padding-left: 12px;
  }

  .sidebar .submenu a {
    padding: 8px 10px;
    font-size: 15px;
  }

  .sidebar-footer {
    margin-top: 20px;
    padding: 14px 8px 4px;
    border-top: 1px solid rgba(255,255,255,.2);
    font-size: 14px;
    line-height: 1.6;
    overflow-wrap: anywhere;
  }

  .content {
    width: 100%;
    min-height: 100svh;
    height: auto;
    margin: 0;
    overflow: visible;
    padding: 8.2rem 1rem 2.5rem;
    background: linear-gradient(
      to right,
      rgba(77,67,67,.78),
      rgba(77,67,67,.78)
    );
    font-size: 16px;
    line-height: 1.6;
    font-weight: 400;
  }

  .content h1 {
    font-size: clamp(1.55rem, 7vw, 2rem);
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .content h2 {
    margin-bottom: 1.25rem;
    font-size: clamp(1.25rem, 5.5vw, 1.65rem);
    line-height: 1.25;
    overflow-wrap: anywhere;
  }

  .content h3 {
    font-size: 1.15rem;
    line-height: 1.3;
  }

  .content p {
    margin-bottom: .85em;
  }

  .content p:last-of-type {
    margin-top: .8rem;
  }

  .content a {
    overflow-wrap: anywhere;
  }

  .content table {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .carousel {
    width: 100%;
    margin-top: 1.5rem;
  }

  .carousel-main,
  .carousel-slide {
    width: 100%;
  }

  .carousel-slide {
    max-height: 55svh;
    object-fit: contain;
  }

  .carousel-thumbs {
    gap: 6px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .carousel-thumb {
    flex: 0 0 64px;
    width: 64px;
    height: 48px;
  }

  .intext-image {
    width: auto;
    max-width: 100%;
    margin: 1.25rem auto;
  }

  /* Sonderhintergründe bleiben sichtbar, scrollen aber mit dem Gerät. */
  .page-background,
  .greyhound-background,
  body.super-klima-page .super-klima-background,
  body.nightliner-page .nightliner-background {
    position: fixed;
    inset: 0;
  }
}

@media (max-width: 380px) {
  .content {
    padding-right: .85rem;
    padding-left: .85rem;
    font-size: 15px;
  }

  .sidebar-logo {
    width: 125px;
  }

  .lang-switch a {
    padding: 6px 8px;
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle span {
    transition: none;
  }
}