/* Portfolio Page Styles */

/* Portfolio section spacing */
.portfolio-section {
  padding: var(--space-2xl) var(--space-md);
  max-width: var(--max-content-width);
  margin: 0 auto;
}

.portfolio-section h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-light);
  color: var(--color-black);
  margin-bottom: var(--space-xl);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Portfolio grid layout - Mobile first (1 column) */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

/* Portfolio item styling */
.portfolio-item {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background-color: var(--color-warm-grey-light);
  transition: transform var(--transition-normal);
  min-width: 44px;
  min-height: 44px;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* Hover effects for portfolio items (desktop only) */
@media (hover: hover) {
  .portfolio-item:hover {
    transform: scale(1.02);
  }
  
  .portfolio-item:hover img {
    opacity: 0.85;
  }
}

/* Focus state for keyboard navigation */
.portfolio-item:focus {
  outline: 2px solid var(--color-black);
  outline-offset: 4px;
}

/* Mobile - ensure touch-friendly sizing */
@media (width <= 767px) {
  .portfolio-item {
    min-width: 44px;
    min-height: 44px;
  }
}

/* Tablet layout (2 columns) */
@media (width >= 768px) and (width <= 1023px) {
  .portfolio-section {
    padding: var(--space-3xl) var(--space-lg);
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }
}

/* Desktop layout (3 columns) */
@media (width >= 1024px) {
  .portfolio-section {
    padding: var(--space-4xl) var(--space-xl);
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
  }
}

/* Lightbox overlay */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgb(0 0 0 / 95%);
  z-index: var(--z-modal);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-xl);
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.lightbox[hidden] {
  display: none;
}

/* Lightbox image */
.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

/* Lightbox close button */
.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  background-color: var(--color-white);
  color: var(--color-black);
  border: none;
  border-radius: 50%;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-light);
  line-height: 1;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  z-index: calc(var(--z-modal) + 1);
}

.lightbox-close:hover {
  background-color: var(--color-warm-grey-light);
  transform: scale(1.1);
}

.lightbox-close:focus {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

.lightbox-close:active {
  transform: scale(0.95);
}

/* Mobile adjustments for lightbox */
@media (width <= 767px) {
  .lightbox {
    padding: var(--space-md);
  }
  
  .lightbox-close {
    top: var(--space-md);
    right: var(--space-md);
  }
}

/* Tablet adjustments for lightbox */
@media (width >= 768px) and (width <= 1023px) {
  .lightbox {
    padding: var(--space-lg);
  }
}