/* ============================================
   Portfolio / Gallery
   ============================================ */

.portfolio-section {
  background: var(--color-white);
}

/* Filter tabs */
.portfolio-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-600);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-primary-300);
  color: var(--color-primary-700);
  background: var(--color-primary-50);
}

.filter-btn.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: var(--color-white);
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  animation: fadeIn 0.5s ease;
}

.gallery-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.gallery-item figure {
  margin: 0;
  height: 100%;
}

.gallery-item img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center top;
  transition: transform var(--transition-slow);
}

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

.gallery-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(13, 59, 13, 0.85));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.gallery-item figcaption {
  color: var(--color-white);
  font-weight: var(--font-semibold);
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}

.gallery-item-category {
  color: var(--color-primary-200);
  font-size: var(--text-sm);
}

.gallery-item-zoom {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  transform: scale(0.7);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-primary-700);
  opacity: 0;
  transition: all var(--transition-base);
  z-index: 2;
}

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

/* Before/After badge */
.gallery-item .ba-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: var(--color-cta-primary);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  border-radius: var(--radius-sm);
  z-index: 2;
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
}

.lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  transform: scale(0.9);
  transition: transform var(--transition-spring);
}

.lightbox.active .lightbox-content img {
  transform: scale(1);
}

.lightbox-caption {
  text-align: center;
  color: var(--color-white);
  padding: var(--space-4);
  font-size: var(--text-lg);
}

.lightbox-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--text-2xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--text-2xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox-prev { left: var(--space-6); }
.lightbox-next { right: var(--space-6); }

.lightbox-counter {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .gallery-item img {
    height: 180px;
  }

  .gallery-item-overlay {
    opacity: 1;
    background: linear-gradient(180deg, transparent 50%, rgba(13, 59, 13, 0.7));
    padding: var(--space-3);
  }

  .gallery-item figcaption {
    font-size: var(--text-sm);
  }

  .gallery-item-zoom {
    display: none;
  }

  .lightbox-nav {
    width: 36px;
    height: 36px;
    font-size: var(--text-lg);
  }

  .lightbox-prev { left: var(--space-2); }
  .lightbox-next { right: var(--space-2); }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item img {
    height: 220px;
  }
}