/* 1. Before/After Image Slider */
.before-after-wrapper {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  box-shadow: var(--shadow-premium);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(18, 48, 71, 0.05);
}

.before-after-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  user-select: none;
  overflow: hidden;
  background-color: var(--color-tech-gray);
}

.slider-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.slider-image.before-img {
  width: 100%;
  height: 100%;
  z-index: 10;
}

.slider-image.after-img {
  width: 100%;
  height: 100%;
  z-index: 5;
}

/* Resize container to clip the before image */
.slider-before-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%; /* Default middle split */
  height: 100%;
  overflow: hidden;
  z-index: 10;
}

.slider-before-container .slider-image {
  width: 100%; /* Keep natural aspect ratio */
  max-width: none;
}

/* Slider Bar & Handle */
.slider-handle {
  position: absolute;
  top: 0;
  left: 50%; /* Default middle split */
  width: 4px;
  height: 100%;
  background-color: var(--color-white-warm);
  cursor: ew-resize;
  z-index: 20;
  transform: translateX(-50%);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--color-white-warm);
  border: 2px solid var(--color-navy);
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  color: var(--color-navy);
  transition: var(--transition-fast);
  cursor: ew-resize;
  z-index: 25;
}

.slider-button::before, .slider-button::after {
  content: '';
  border: solid transparent;
  border-width: 5px 6px;
  position: absolute;
}

.slider-button::before {
  border-right-color: var(--color-navy);
  left: 8px;
}

.slider-button::after {
  border-left-color: var(--color-navy);
  right: 8px;
}

.slider-handle:hover .slider-button,
.slider-handle:active .slider-button {
  background-color: var(--color-navy);
  color: var(--color-white-warm);
  transform: translate(-50%, -50%) scale(1.1);
}

.slider-handle:hover .slider-button::before,
.slider-handle:active .slider-button::before {
  border-right-color: var(--color-white-warm);
}

.slider-handle:hover .slider-button::after,
.slider-handle:active .slider-button::after {
  border-left-color: var(--color-white-warm);
}

/* Image Labels */
.slider-label {
  position: absolute;
  bottom: 1.5rem;
  padding: 0.5rem 1rem;
  background-color: rgba(18, 48, 71, 0.85);
  color: var(--color-white-warm);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  z-index: 15;
  pointer-events: none;
}

.slider-label.label-before {
  left: 1.5rem;
}

.slider-label.label-after {
  right: 1.5rem;
}

/* 2. Scroll Storytelling */
.scroll-story-section {
  padding: 0;
  background-color: var(--color-navy-dark);
  color: var(--color-white-warm);
}

.scroll-story-container {
  display: flex;
  position: relative;
  width: 100%;
}

.scroll-story-visual {
  position: sticky;
  top: 0;
  width: 55%;
  height: 100vh;
  overflow: hidden;
  background-color: var(--color-navy-dark);
}

.scroll-story-video-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
}

.scroll-story-video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scroll-story-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.scroll-story-visual-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.scroll-story-visual-fallback.active {
  opacity: 1;
}

.scroll-story-content {
  width: 45%;
  padding-left: 5%;
  position: relative;
  z-index: 5;
}

.scroll-story-step {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: 10%;
  opacity: 0.3;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-story-step.active {
  opacity: 1;
  transform: translateY(0);
}

.scroll-story-step-num {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.scroll-story-step h3 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--color-text-on-dark);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.scroll-story-step p {
  font-size: 1.25rem;
  line-height: 1.65;
  color: rgba(246, 241, 231, 0.92);
}

/* Mobile Scroll Story Fallback */
@media (max-width: 900px) {
  .scroll-story-section {
    padding: var(--spacing-lg) 0;
  }
  .scroll-story-container {
    flex-direction: column;
  }
  .scroll-story-visual {
    position: relative;
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    top: auto;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-premium);
  }
  .scroll-story-content {
    width: 100%;
    padding-left: 0;
  }
  .scroll-story-step {
    height: auto;
    padding-right: 0;
    padding-bottom: 2.5rem;
    opacity: 1;
    transform: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2.5rem;
  }
  .scroll-story-step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }
  .scroll-story-step-num {
    font-size: 2.4rem;
  }
  .scroll-story-step h3 {
    font-size: 1.85rem;
  }
  .scroll-story-step p {
    font-size: 1.15rem;
  }
}

/* 3. Tabbed Gallery */
.gallery-tabs-container {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.gallery-tab-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--color-white-warm);
  border: 1px solid var(--color-tech-gray);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-smooth);
}

.gallery-tab-btn:hover {
  border-color: var(--color-sand);
  background-color: var(--color-bg-warm);
}

.gallery-tab-btn.active {
  background-color: var(--color-navy);
  color: var(--color-white-warm);
  border-color: var(--color-navy);
}

.gallery-panes-container {
  position: relative;
}

.gallery-pane {
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.gallery-pane.active {
  display: block;
  opacity: 1;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  aspect-ratio: 4/3;
  background-color: var(--color-tech-gray);
  border: 1px solid rgba(18, 48, 71, 0.03);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(18, 48, 71, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
  color: var(--color-white-warm);
  font-size: 1.5rem;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

/* 4. Zoomable Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 27, 40, 0.95);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img-wrapper {
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  position: relative;
  cursor: grab;
}

.lightbox-img-wrapper:active {
  cursor: grabbing;
}

.lightbox-image {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  transition: transform 0.2s ease-out;
  transform-origin: center center;
}

.lightbox-caption {
  color: var(--color-white-warm);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-top: 1.5rem;
  text-align: center;
  opacity: 0.9;
}

/*
 * Close button del lightbox: ancorato al viewport della .lightbox (non a .lightbox-content)
 * così resta sempre in alto-destra dello schermo, indipendente dal ridimensionamento
 * dell'immagine. Badge circolare con contorno chiaro per essere visibile su
 * qualunque sfondo di foto.
 */
.lightbox-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-on-dark);
  font-size: 1.75rem;
  line-height: 1;
  font-weight: 300;
  cursor: pointer;
  background: rgba(10, 20, 34, 0.55);
  border: 1.5px solid rgba(246, 241, 231, 0.75);
  border-radius: 50%;
  padding: 0;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  opacity: 1;
  transition: var(--transition-fast);
  z-index: 1001;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-on-accent);
  transform: scale(1.08);
  outline: none;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-white-warm);
  font-size: 2.5rem;
  cursor: pointer;
  opacity: 0.5;
  transition: var(--transition-fast);
  background: none;
  border: none;
  padding: 1rem;
  z-index: 1010;
}

.lightbox-nav:hover {
  opacity: 1;
}

.lightbox-prev {
  left: -80px;
}

.lightbox-next {
  right: -80px;
}

/* Lightbox Zoom Controls */
.lightbox-zoom-controls {
  display: flex;
  gap: 1rem;
  position: absolute;
  bottom: -45px;
  background-color: rgba(18, 48, 71, 0.8);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.zoom-btn {
  color: var(--color-white-warm);
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  opacity: 0.8;
  transition: var(--transition-fast);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zoom-btn:hover {
  opacity: 1;
}

@media (max-width: 900px) {
  .lightbox-prev {
    left: -40px;
  }
  .lightbox-next {
    right: -40px;
  }
}

@media (max-width: 576px) {
  .lightbox-prev, .lightbox-next {
    display: none;
  }
}