:root {
  --header-text: #204f9e;
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #5b6472;
  --border: #e5e8ee;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "stolzl", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}

a {
  color: inherit;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--space-md);
  align-items: center;
  padding: 1.5rem 2rem;
  background: var(--bg);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--header-text);
  font-weight: 700;
  font-size: 1.25rem;
  white-space: nowrap;
}

.logo-img {
  height: 42px;
  width: auto;
  display: block;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--header-text);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.main-nav {
  grid-column: 7 / 13;
}

.main-nav ul {
  display: flex;
  justify-content: flex-start;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav li:last-child {
  margin-left: auto;
}

.main-nav a {
  color: var(--header-text);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  padding-bottom: 0.3rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  border-color: var(--header-text);
}

@media (max-width: 768px) {
  .site-header {
    display: flex;
    justify-content: space-between;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.open {
    max-height: 320px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 2rem 1.5rem;
  }

  .main-nav li:last-child {
    margin-left: 0;
  }

  .main-nav a {
    display: block;
    padding: 0.75rem 0;
  }
}

/* Scene / Startseite */

.scene-wrapper {
  position: relative;
  width: 100%;
  height: calc(100vh - var(--menu-height, 70px));
  overflow: hidden;
}

/* Konzept-Seite (nur 3D-Ansicht, kein Scroll-Intro davor): Menü liegt wie
   auf der Startseite fest über der Szene, damit die Canvas-Höhe (und
   damit die Kamera-Perspektive auf den Raum) exakt identisch ist. */
.page-3d-only .site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
}

.page-3d-only .scene-wrapper {
  height: 100vh;
}

#scene-container {
  width: 100%;
  height: 100%;
  cursor: grab;
}

#scene-container:active {
  cursor: grabbing;
}

.viewer-hint {
  position: absolute;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.92);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  pointer-events: none;
  text-align: center;
  transition: opacity 0.6s ease;
}

.viewer-hint.hint-hidden {
  opacity: 0;
}

.reset-view {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  background: #ffffff;
  color: var(--header-text);
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  outline: none;
  transition: text-decoration 0.15s ease;
}

.reset-view:hover {
  text-decoration: underline;
}

.legend {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  display: flex;
  flex-wrap: wrap-reverse;
  gap: 0.5rem;
  max-width: 60%;
}

.legend span {
  background: rgba(255, 255, 255, 0.92);
  color: var(--muted);
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}

.legend span[data-hotspot] {
  cursor: pointer;
  transition: color 0.15s ease;
}

.legend span[data-hotspot]:hover {
  color: var(--header-text);
}

@media (max-width: 768px) {
  /* Statt komplett auszublenden: als horizontal scrollbarer Chip-Streifen
     anzeigen, damit die Hotspot-Infos auf Mobile erreichbar bleiben, ohne
     viel vertikalen Platz auf der Szene zu verbrauchen. Etwas mehr Abstand
     nach unten, damit die Leiste nicht mit dem Reset-Button kollidiert. */
  .legend {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 3.5rem;
    max-width: none;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.25rem;
  }

  .legend span {
    flex: none;
    font-size: 0.72rem;
    padding: 0.3rem 0.6rem;
    white-space: nowrap;
  }
}

/* Popup */

.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 30, 0.55);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1.5rem;
}

.popup-overlay.active {
  display: flex;
}

.popup-card {
  background: #ffffff;
  border-radius: 0;
  padding: 2.25rem 2.25rem 2rem;
  max-width: 460px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(15, 20, 30, 0.3);
  position: relative;
  border-top: 6px solid var(--header-text);
}

.popup-card .popup-kicker {
  display: block;
  color: #f08b88;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.popup-card h3 {
  color: var(--header-text);
  margin: 0 0 1rem;
  font-size: 1.45rem;
  line-height: 1.25;
}

.popup-card p {
  margin: 0;
  line-height: 1.65;
  color: var(--text);
  font-size: 1rem;
}

.popup-close {
  position: absolute;
  top: 0;
  right: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-left: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.popup-close:hover {
  background: var(--header-text);
  color: #fff;
  border-color: var(--header-text);
}

/* Content pages */

.page-content {
  margin: 0;
  padding: var(--space-lg) 1.5rem 8rem var(--content-left, 1.5rem);
  line-height: 1.75;
}

/* Wenn die Seite ein Feature-Grid enthält, füllt der Inhalt den restlichen
   Viewport unter dem Menü und verteilt Statement/Grid auf oben/unten –
   dadurch ist alles ohne Scrollen sichtbar. */
.page-content:has(.feature-grid) {
  min-height: calc(100vh - var(--menu-height, 70px));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-bottom: var(--space-lg);
}

.page-problem .page-content {
  padding-right: var(--content-left, 1.5rem);
}

.page-content h2,
.page-content p,
.page-content .placeholder-note,
.page-content .sources-list {
  max-width: 860px;
}

.page-content h2 {
  color: var(--header-text);
  font-weight: 400;
  font-size: 1.05rem;
  margin: 3.5rem 0 1.1rem;
}

.page-content h2:first-of-type {
  margin-top: 3.5rem;
}

.page-content p {
  color: var(--text);
  font-size: 1.05rem;
  text-align: justify;
  text-justify: inter-word;
}

.page-content strong {
  font-weight: 400;
  color: var(--header-text);
}

.page-content .lead {
  max-width: 1800px;
  font-size: clamp(1.2rem, 1.7vw, 1.6rem);
  font-weight: 400;
  letter-spacing: normal;
  color: var(--text);
  line-height: 1.25;
  text-wrap: pretty;
  margin: 0 0 6rem;
}

.page-content .accent {
  color: #f08b88;
}

/* Blocksatz erzeugt bei schmalen Spalten große Wortlücken, besonders
   bei langen Komposita – auf Mobile linksbündig statt Blocksatz.
   Wirkung hat kein eigenes CSS-File, daher hier auf .page-wirkung
   beschränkt (Konzept/Über Uns lösen das in ihren eigenen Dateien). */
@media (max-width: 768px) {
  .page-wirkung .page-content p,
  .page-wirkung .page-content .lead {
    text-align: left;
  }
}

/* Wiederverwendbares randloses Foto für Content-Seiten, gleicher Stil
   wie das Bild auf der Problem-Seite. */
.page-content .page-photo {
  margin: var(--space-lg) -1.5rem 0 calc(-1 * var(--content-left, 1.5rem));
  position: relative;
  overflow: hidden;
}

.page-content .page-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  filter: blur(2px);
}

.page-content .page-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.25;
  mix-blend-mode: overlay;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  column-gap: var(--space-md);
  row-gap: var(--space-lg);
  width: 100%;
  margin-top: var(--space-lg);
}

.feature-item h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.feature-item p {
  margin: 0;
}

.editorial-section {
  display: grid;
  grid-template-columns: 3rem 1fr;
  column-gap: var(--space-md);
  align-items: baseline;
  max-width: 860px;
  margin-top: var(--space-xl);
}

.editorial-index {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.editorial-body h2,
.editorial-body h2:first-of-type {
  margin-top: 0;
}

/* Mehr Luft und schmalere Spalte, näher am Startseiten-Gefühl. */
.page-wirkung .page-content h2,
.page-wirkung .page-content p,
.page-wirkung .editorial-section,
.page-wirkung .page-content .placeholder-note,
.page-wirkung .page-content .sources-list,
.page-problem .page-content .placeholder-note,
.page-problem .page-content .sources-list {
  max-width: 680px;
}

/* Variante 2: feine Papier-/Pinsel-Körnung wie auf der Startseite,
   sehr dezent über dem Content liegend. */
.page-wirkung .page-content {
  position: relative;
}

.page-wirkung .page-content::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.06;
  mix-blend-mode: overlay;
}

.placeholder-note {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
  font-style: italic;
}

.sources-list {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  line-height: 1.9;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}