/* ============================================================
   SOLARMAR - Gallery grid + lightbox
   ============================================================ */

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 210px;
  gap: 1.1rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  grid-column: span 3;
  grid-row: span 1;
  background: var(--navy-700);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.gallery-item--large {
  grid-column: span 6;
  grid-row: span 2;
}

/* Filter visibility */
.gallery-item.is-hidden {
  display: none;
}

.gallery-item__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.5s ease;
}

.gallery-item:hover .gallery-item__img {
  transform: scale(1.08);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(10, 22, 40, 0) 40%,
    rgba(10, 22, 40, 0.85) 100%);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

.gallery-item__cat {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-300);
  margin-bottom: 0.35rem;
}

.gallery-item__title {
  color: var(--text-light);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.02rem;
  transform: translateY(10px);
  transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-item__title {
  transform: translateY(0);
}

.gallery-item__zoom {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 209, 102, 0.92);
  color: var(--navy-900);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.gallery-item:hover .gallery-item__zoom {
  transform: scale(1);
}

.gallery-item__zoom svg {
  width: 20px;
  height: 20px;
}

/* Entrance animation for filtered items */
.gallery-item.is-visible {
  animation: galleryIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes galleryIn {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(4, 9, 18, 0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  padding: 5vh 4vw;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  max-width: 1100px;
  width: 100%;
  transform: scale(0.92);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox.is-open .lightbox__content {
  transform: scale(1);
}

.lightbox__img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  background: #000;
}

.lightbox__caption {
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  margin-top: 1.1rem;
  padding: 0 2rem;
}

.lightbox__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  z-index: 6;
}

.lightbox__btn:hover {
  background: var(--amber-400);
  color: var(--navy-900);
}

.lightbox__btn svg { width: 24px; height: 24px; }

.lightbox__btn--prev { left: 2vw; }
.lightbox__btn--next { right: 2vw; }

.lightbox__close {
  position: absolute;
  top: 2.2rem;
  right: 2.2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 6;
}

.lightbox__close:hover {
  background: var(--amber-400);
  color: var(--navy-900);
  transform: rotate(90deg);
}

.lightbox__close svg { width: 22px; height: 22px; }

.lightbox__counter {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 900px) {
  .gallery__grid {
    grid-auto-rows: 170px;
  }
  .gallery-item--large,
  .gallery-item {
    grid-column: span 6;
  }
}

@media (max-width: 600px) {
  .gallery__grid { grid-auto-rows: 150px; }
  .gallery-item--large,
  .gallery-item {
    grid-column: span 12;
  }
  .lightbox__btn { width: 44px; height: 44px; }
}