/* Orainger diafilm – TV / kioszk. Ken Burns, crossfade, overlay, QR. */

:root {
  --slideshow-bg: #0a0a12;
  --slideshow-overlay-bg: rgba(5, 8, 20, 0.82);
  --slideshow-text: #fef7ff;
  --slideshow-text-dim: #a5b3d8;
  --slideshow-accent: #ff9b32;
  --slide-duration: 9s;
  --transition-duration: 2.6s;
  --morph-ease: cubic-bezier(0.33, 1, 0.68, 1);
}

.slideshow-page {
  position: fixed;
  inset: 0;
  background: var(--slideshow-bg);
  overflow: hidden;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
}

.slideshow-stage {
  position: absolute;
  inset: 0;
}

/* Morphing áttűnés: opacity + enyhe scale – a két kép látszólag egymásba alakul */
.slide-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(0.98);
  transition:
    opacity var(--transition-duration) var(--morph-ease),
    transform var(--transition-duration) var(--morph-ease),
    filter var(--transition-duration) var(--morph-ease);
  filter: blur(0);
  pointer-events: none;
}

.slide-layer.active {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
  pointer-events: auto;
}

/* Kimenő kép: enyhe nagyítás + pici blur a lágyabb „átalakulás” érzetéhez */
.slide-layer.morph-out {
  transform: scale(1.02);
  filter: blur(1px);
}

.slide-inner {
  position: absolute;
  inset: -2%;
  display: flex;
  align-items: center;
  justify-content: center;
  --kb-scale: 1.06;
  --kb-tx: 0%;
  --kb-ty: 0%;
  animation: kenBurns var(--slide-duration) ease-in-out forwards;
}

.slide-layer.active .slide-inner {
  animation: kenBurns var(--slide-duration) ease-in-out forwards;
}

@keyframes kenBurns {
  0% {
    transform: scale(1) translate(0, 0);
  }
  100% {
    transform: scale(var(--kb-scale)) translate(var(--kb-tx), var(--kb-ty));
  }
}

.slide-layer img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Overlay: cím, alkotó – alul, sötét sáv, világos szöveg (3×5 szabály) */
.slideshow-overlay {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.2rem 1.5rem 1.5rem;
  background: linear-gradient(to top, var(--slideshow-overlay-bg) 0%, transparent 100%);
  color: var(--slideshow-text);
  z-index: 10;
  pointer-events: none;
}

.slideshow-title {
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 600;
  margin: 0 0 0.25rem;
  line-height: 1.3;
  max-height: 2.6em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.slideshow-author {
  font-size: clamp(0.85rem, 1.8vw, 1.05rem);
  color: var(--slideshow-text-dim);
  margin: 0;
  line-height: 1.3;
  max-height: 1.3em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* orainger.com – folyamatosan megjelenítve */
.slideshow-brand {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(to bottom, var(--slideshow-overlay-bg) 0%, transparent 100%);
  color: var(--slideshow-accent);
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

/* QR kép – sarokban mindig, kicsi */
.slideshow-qr-corner {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  width: 72px;
  height: 72px;
  z-index: 12;
  pointer-events: none;
}

.slideshow-qr-corner img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  padding: 4px;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

/* QR dia – teljes képernyős „Scan” dia 28 mp */
.qr-slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--slideshow-bg);
  z-index: 15;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-duration) ease-in-out, visibility 0s linear var(--transition-duration);
}

.qr-slide.active {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-duration) ease-in-out;
}

.qr-slide-title {
  color: var(--slideshow-text);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  margin: 0 0 0.5rem;
  text-align: center;
}

.qr-slide-sub {
  color: var(--slideshow-text-dim);
  font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  margin: 0 0 1.25rem;
  text-align: center;
}

.qr-slide img {
  width: min(220px, 35vw);
  height: min(220px, 35vw);
  object-fit: contain;
  background: #fff;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

/* Fullscreen gomb – opcionális, TV/kioszk */
.slideshow-fullscreen-btn {
  position: fixed;
  top: 0.6rem;
  right: 0.6rem;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.12);
  color: var(--slideshow-text);
  cursor: pointer;
  z-index: 20;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.slideshow-fullscreen-btn:hover {
  background: rgba(255,255,255,0.22);
}

/* Üres / betöltés */
.slideshow-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--slideshow-bg);
  color: var(--slideshow-text-dim);
  font-size: 1.1rem;
}

.slideshow-placeholder.hidden {
  display: none;
}