/* ══════════════════════════════════════════
   GALLERIA FOTOGRAFICA — U.S. SERIANA
   assets/css/galleria.css (v10)
   ══════════════════════════════════════════ */

/* Sezione Galleria Principale */
.galleria-sezione {
  padding: 60px 5% 100px;
  max-width: 1360px;
  margin: 0 auto;
}

.galleria-header-centro {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.galleria-header-centro h2 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: var(--blu-scuro);
  letter-spacing: 1px;
  line-height: 1.1;
  margin: 10px 0 14px;
}

.galleria-sottotitolo {
  color: var(--grigio);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* ══════════════════════════
   STRUTTURA BLOCCHI GALLERIA
   (1 grande con 2 piccole affiancate,
    alternate ed equilibrate)
══════════════════════════ */
.galleria-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.galleria-blocco {
  width: 100%;
  display: flex;
  gap: 24px;
}

/* Blocco 1: Grande Sinistra (66%) + Doppia Colonna Destra (33%) */
.blocco-1-2 {
  height: 500px;
}

.blocco-1-2 .card-principale {
  flex: 2;
  height: 100%;
}

.blocco-1-2 .galleria-colonna-doppia {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

/* Blocco 2: Doppia Colonna Sinistra (33%) + Grande Destra (66%) */
.blocco-2-1 {
  height: 500px;
}

.blocco-2-1 .galleria-colonna-doppia {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

.blocco-2-1 .card-principale {
  flex: 2;
  height: 100%;
}

.card-secondaria {
  flex: 1;
  height: calc(50% - 12px);
  width: 100%;
}

/* Blocco 3: 3 Colonne Medie */
.blocco-3-colonne {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.blocco-3-colonne .card-media {
  height: 280px;
}

/* Blocco 4: 4 Colonne Compatte */
.blocco-4-colonne {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.blocco-4-colonne .card-compatta {
  height: 260px;
}

/* ══════════════════════════
   CARD IMMAGINE PULITA
══════════════════════════ */
.galleria-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(13, 30, 48, 0.08);
  cursor: pointer;
  background: var(--blu-medio);
  transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease;
}

.galleria-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(13, 30, 48, 0.18);
}

.galleria-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.galleria-card:hover .galleria-card-img {
  transform: scale(1.04);
}

/* Overlay minimale con sola icona ingrandisci al passaggio */
.galleria-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 30, 48, 0.3);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.galleria-card:hover .galleria-card-overlay {
  opacity: 1;
}

.galleria-zoom-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(32, 128, 91, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transform: scale(0.85);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.galleria-card:hover .galleria-zoom-icon {
  transform: scale(1);
}

/* ══════════════════════════
   LIGHTBOX MODALE A SCHERMO INTERO
══════════════════════════ */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(10, 22, 36, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.35s ease;
  padding: 24px;
}

.lightbox-modal.aperto {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Pulsante Chiudi */
.lightbox-btn-chiudi {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100001;
  transition: all 0.25s ease;
}

.lightbox-btn-chiudi:hover {
  background: #ff4757;
  border-color: #ff4757;
  transform: rotate(90deg) scale(1.05);
}

/* Pulsanti Frecce Precedente / Successiva */
.lightbox-btn-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100000;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  user-select: none;
}

.lightbox-btn-nav:hover {
  background: var(--verde);
  border-color: var(--verde);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 0 20px rgba(32, 128, 91, 0.5);
}

.lightbox-btn-prev {
  left: 24px;
}

.lightbox-btn-next {
  right: 24px;
}

.lightbox-btn-nav svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* Contenitore Immagine Lightbox */
.lightbox-contenuto {
  position: relative;
  max-width: min(1200px, 92vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: lightboxZoomIn 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

@keyframes lightboxZoomIn {
  from {
    opacity: 0;
    transform: scale(0.94);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.lightbox-img-wrapper {
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  width: auto;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  object-fit: contain;
  user-select: none;
}

/* Didascalia Minimal Lightbox */
.lightbox-didascalia {
  margin-top: 14px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.lightbox-contatore {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
}

/* Pulsante Download Lightbox */
.lightbox-btn-download {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(32, 128, 91, 0.9);
  border: 1px solid rgba(32, 128, 91, 1);
  border-radius: 24px;
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
}

.lightbox-btn-download:hover {
  background: rgba(32, 128, 91, 1);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(32, 128, 91, 0.4);
}

.lightbox-btn-download:active {
  transform: translateY(0);
}

/* ══════════════════════════
   RESPONSIVE
══════════════════════════ */
@media (max-width: 1024px) {
  .blocco-1-2,
  .blocco-2-1 {
    height: 420px;
  }

  .blocco-3-colonne {
    grid-template-columns: repeat(2, 1fr);
  }

  .blocco-4-colonne {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .galleria-sezione {
    padding: 45px 4% 70px;
  }

  .galleria-container {
    gap: 16px;
  }

  .galleria-blocco {
    flex-direction: column !important;
    gap: 16px !important;
    height: auto !important;
  }

  .card-principale {
    height: 240px !important;
    width: 100% !important;
  }

  .galleria-colonna-doppia {
    height: auto !important;
    width: 100% !important;
    gap: 16px !important;
  }

  .card-secondaria {
    height: 200px !important;
    width: 100% !important;
  }

  .blocco-3-colonne,
  .blocco-4-colonne {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .card-media,
  .card-compatta {
    height: 220px !important;
  }

  .lightbox-btn-nav {
    display: none;
  }

  .lightbox-btn-chiudi {
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }

  .lightbox-img-wrapper {
    max-height: 70vh;
  }
}

@media (max-width: 480px) {
  .galleria-sezione {
    padding: 36px 4% 60px;
  }

  .galleria-header-centro {
    margin-bottom: 32px;
  }

  .galleria-header-centro h2 {
    font-size: clamp(1.8rem, 7vw, 2.4rem);
  }

  .blocco-3-colonne {
    grid-template-columns: 1fr !important;
  }

  .blocco-4-colonne {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .card-media {
    height: 180px !important;
  }

  .card-compatta {
    height: 160px !important;
  }

  .card-principale {
    height: 220px !important;
  }

  .card-secondaria {
    height: 170px !important;
  }
}