/* Timeline Component */
/* ///////////////////// */
/* Desktop: horizontaler Scroll (gepinnt, GSAP ScrollTrigger in /js/timeline.js) */
/* Tablet/Mobile (max 55em): vertikale Timeline ohne Scroll-Effekt */

/* DESKTOP //////////////////////////////////////////////////////////////// */

.timeline {
  --tl-line-top: 2.25rem;
  /* Höhe der Linie ab Oberkante Item */
  --tl-content-top: 4rem;
  /* Abstand Inhalt ab Oberkante Item */
  --tl-gap: 4.5rem;
  --tl-color-line: var(--color__accent);
  overflow: hidden;
}

.timeline__pin {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100svh;
  /* --tl-offset-top: gemessene Unterkante von Navi/Newsbanner (timeline.js), Fallback Navi-Höhe */
  padding-top: calc(var(--tl-offset-top, var(--nav__height)) + 1.5rem);
  padding-bottom: 4.5rem;
  /* Platz für Fortschrittsbalken */
}

/* margin auto statt justify-content:center, damit hoher Inhalt nie nach oben unter die Navi überläuft */
.timeline__viewport {
  position: relative;
  width: 100%;
  margin-top: auto;
  margin-bottom: auto;
}

.timeline__track {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--tl-gap);
  width: max-content;
  padding-left: calc(var(--innerwrap__side-margin) + var(--innerwrap__px));
  padding-right: calc(var(--innerwrap__side-margin) + var(--innerwrap__px));
  will-change: transform;
}

/* durchgehende Zeitlinie */
.timeline__track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: var(--tl-line-top);
  height: 1px;
  background: var(--tl-color-line);
  opacity: 0.5;
}

/* ***** Items */

.timeline__item {
  position: relative;
  flex-shrink: 0;
  padding-top: var(--tl-content-top);
}

/* --- Kapitel */
.timeline__item--chapter {
  width: 34rem;
}

.timeline__intro {
  margin-top: 1.5rem;
  max-width: 60ch;
}

/* --- Eintrag */
.timeline__item--entry {
  width: 24rem;
}

.timeline__period {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  color: var(--color__accent);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.timeline__dot {
  position: absolute;
  top: calc(var(--tl-line-top) - 0.4rem);
  left: 0;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--color__accent);
  box-shadow: 0 0 0 0.3rem var(--color__light);
}

.timeline__title {
  margin-bottom: 1rem;
}

.timeline__text p:last-child {
  margin-bottom: 0;
}

.timeline__link {
  display: inline-block;
  margin-top: 1rem;
  text-decoration: underline;
  text-decoration-color: var(--color__accent);
  text-decoration-skip-ink: none;
  text-underline-offset: 0.1em;
  text-decoration-thickness: 0.0625em;
}

/* --- Galerie */
.timeline__gallery {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.timeline__gallery .timeline__figure {
  width: 14rem;
}

/* --- Schluss */
.timeline__item--closing {
  width: 30rem;
  padding-right: 4rem;
}

/* ***** Bilder + Zoom */

.timeline__figure {
  margin: 0 0 1.25rem;
}

.timeline__zoom {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: var(--color__accentLight);
  cursor: zoom-in;
  overflow: hidden;
}

.timeline__zoom img {
  display: block;
  width: 100%;
  height: 11rem;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}

.timeline__gallery .timeline__zoom img {
  height: 18rem;
}

.timeline__zoom:hover img,
.timeline__zoom:focus-visible img {
  transform: scale(1.04);
}

.timeline__zoom-icon {
  position: absolute;
  right: 0.5rem;
  bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color__light);
  color: var(--color__accent);
  font-size: 1.25rem;
  line-height: 1;
}

.timeline__figure figcaption {
  margin-top: 0.5rem;
  color: var(--color__primary);
}

/* ***** Fortschritt */

.timeline__progress {
  position: absolute;
  left: calc(var(--innerwrap__side-margin) + var(--innerwrap__px));
  right: calc(var(--innerwrap__side-margin) + var(--innerwrap__px));
  bottom: 2rem;
  height: 2px;
  background: var(--color__secondary);
  display: none;
}

.timeline__progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--color__accent);
  transform: scaleX(0);
  transform-origin: left center;
}

/* ***** Lightbox (im Modal aus footer.php) */

/* .modal--zoom wird von timeline.js beim Öffnen gesetzt.
   FESTE BOX, unabhängig vom Bild: Das Bild wird darin eingepasst (contain) statt die Box zu bestimmen.
   So sieht der Zoom bei Hoch- und Querformat gleich aus. */
.modal.modal--zoom {
  --tl-zoom-w: min(92vw, 75rem);
  --tl-zoom-h: min(calc(100svh - 4rem), 52rem);
}

.modal.modal--zoom .modal__inner {
  width: var(--tl-zoom-w);
  height: var(--tl-zoom-h);
  max-width: none;
}

.modal.modal--zoom .modal-content {
  height: 100%;
}

/* X liegt beim Zoom über dem Bild: weisser Kreis für Kontrast */
.modal.modal--zoom .trigger--close {
  top: 2rem;
  right: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--color__light);
  box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.15);
}

.modal.modal--zoom .trigger--close .svg-icon {
  width: 1.1rem;
  height: 1.1rem;
}

/* Bildfläche oben, Legende mit fixer Höhe unten: Box bleibt gleich, ob mit oder ohne Legende */
.modal .timeline-zoom {
  display: grid;
  grid-template-rows: minmax(0, 1fr) 3.5rem;
  height: 100%;
  margin: 0;
  padding: 1.25rem 1.25rem 0;
}

.modal .timeline-zoom img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  /* background: var(--color__secondaryLight); */
}

.modal .timeline-zoom figcaption {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  text-align: center;
  color: var(--color__primary);
  overflow: hidden;
}

/* TABLET + MOBILE: vertikal //////////////////////////////////////////////////////////////// */

@media only screen and (max-width: 55em) {
  .timeline {
    --tl-gap: 3rem;
    --tl-line-left: 0.4rem;
  }

  .timeline__pin {
    height: auto;
    padding-top: var(--innerwrap__py);
    padding-bottom: var(--innerwrap__py);
  }

  .timeline__track {
    flex-direction: column;
    width: auto;
    padding-left: var(--innerwrap__px);
    padding-right: var(--innerwrap__px);
    transform: none !important;
  }

  .timeline__track::before {
    top: 0;
    bottom: 0;
    left: calc(var(--innerwrap__px) + var(--tl-line-left));
    right: auto;
    width: 1px;
    height: auto;
  }

  .timeline__item,
  .timeline__item--chapter,
  .timeline__item--entry,
  .timeline__item--closing {
    width: 100%;
    padding-top: 0;
    padding-left: 2.25rem;
    padding-right: 0;
  }

  .timeline__period {
    position: static;
    margin-bottom: 0.25rem;
  }

  .timeline__dot {
    top: 0.35rem;
    left: 0;
  }

  .timeline__gallery {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .timeline__gallery .timeline__figure {
    width: calc(50% - 0.5rem);
  }

  .timeline__gallery .timeline__zoom img,
  .timeline__zoom img {
    height: 12rem;
  }

  .timeline__progress {
    display: none;
  }

  /* Mobile: volle Breite, feste Höhe (nicht ganzer Bildschirm, sonst viel Leerfläche bei Querformat) */
  .modal.modal--zoom {
    --tl-zoom-w: calc(100vw - 2rem);
    --tl-zoom-h: min(calc(100svh - 4rem), 34rem);
  }

  .modal .timeline-zoom {
    grid-template-rows: minmax(0, 1fr) 3rem;
    padding: 0.75rem 0.75rem 0;
  }
}

@media only screen and (max-width: 27em) {
  .timeline__gallery .timeline__figure {
    width: 100%;
  }
}

/* Weniger Bewegung gewünscht: kein Zoom-Effekt */
@media (prefers-reduced-motion: reduce) {
  .timeline__zoom img {
    transition: none;
  }
}