/* ==========================================================================
   MARCO ZULIANI - Fotografo
   Talva Gallery Grid: 3 Colonne Pure con Dissolvenza e Slideshow Dinamico
   ========================================================================== */

.gallery-wrapper {
  padding: 10px var(--header-padding) 60px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-grid);
  width: 100%;
}

.gallery-item {
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  cursor: pointer;
  background-color: var(--border-subtle);
  position: relative;
}

/* Velo per la comparsa iniziale (dissolvenza dal bianco alla foto, una alla volta da in alto a sinistra) */
.gallery-item.intro-veil {
  background-color: var(--bg-color, #FFFFFF);
}

.gallery-item.intro-veil::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--bg-color, #FFFFFF);
  z-index: 10;
  pointer-events: none;
  opacity: 1;
  transition: opacity 1.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.gallery-item.intro-veil.revealed::after {
  opacity: 0;
}

/* Doppio layer sovrapposto per dissolvenza a incrocio cinematografica */
.gallery-item .photo-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 1.1s cubic-bezier(0.4, 0, 0.2, 1), transform 1.1s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
  z-index: 1;
}

.gallery-item .photo-layer.active {
  opacity: 1;
  z-index: 2;
}

.gallery-item:hover .photo-layer.active {
  transform: scale(1.025);
  opacity: 0.96;
}

/* ==========================================================================
   CONTROLLO SLIDESHOW DISCRETO NELL'HEADER
   ========================================================================== */
.slideshow-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  color: var(--filter-inactive);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 16px;
  transition: all 0.2s ease;
  user-select: none;
}

.slideshow-control:hover,
.slideshow-control.active {
  color: var(--filter-active);
}

.slideshow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #2ECC71;
  display: inline-block;
  animation: pulse-dot 2.2s infinite ease-in-out;
}

.slideshow-control.paused .slideshow-dot {
  background-color: var(--text-muted);
  animation: none;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 0.35;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1.25);
  }
}

/* ==========================================================================
   LIGHTBOX MINIMALISTA A TUTTO SCHERMO
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: var(--lightbox-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  display: block;
}

.lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 2.5rem;
  color: var(--text-primary);
  opacity: 0.6;
  cursor: pointer;
  padding: 20px;
  line-height: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 10;
  user-select: none;
}

.lightbox-btn:hover {
  opacity: 1;
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

.lightbox-close {
  position: absolute;
  top: 25px;
  right: var(--header-padding);
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-primary);
  opacity: 0.6;
  cursor: pointer;
  line-height: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 20;
}

.lightbox-close:hover {
  opacity: 1;
  transform: rotate(90deg);
}

/* ==========================================================================
   MODALI ESSENZIALI: "CHI SONO" & "CONTATTI"
   ========================================================================== */
.overlay-dialog {
  position: fixed;
  inset: 0;
  z-index: 500;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.overlay-dialog.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.dialog-panel {
  background-color: var(--modal-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  width: 100%;
  max-width: 580px;
  padding: clamp(2rem, 4vw, 3rem);
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.dialog-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.6rem;
  line-height: 1;
  opacity: 0.5;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.dialog-close:hover {
  opacity: 1;
}

.dialog-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.dialog-body {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.dialog-body p + p {
  margin-top: 1rem;
}

.contact-simple-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-simple-form input,
.contact-simple-form textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-color);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  font-family: inherit;
  font-size: 0.9rem;
}

.contact-simple-form input:focus,
.contact-simple-form textarea:focus {
  outline: none;
  border-color: var(--text-primary);
}

.btn-send {
  align-self: flex-start;
  background-color: var(--text-primary);
  color: var(--bg-color);
  padding: 12px 24px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-send:hover {
  opacity: 0.85;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}