/* ========================================
   Portfolio Page Styles
   ======================================== */

/* Hero Section */
.section--hero-portfolio {
  padding-top: var(--space-16);
  padding-bottom: var(--space-10);
}

.hero-portfolio__content {
  max-width: 52rem;
  margin: 0 auto;
  text-align: center;
}

.hero-portfolio__description {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
  margin: var(--space-4) auto var(--space-8);
  max-width: 48rem;
}

/* Portfolio Filters */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.portfolio-filter {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: 
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.portfolio-filter:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-text);
}

.portfolio-filter--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.portfolio-filter--active:hover {
  background: #e61539;
  border-color: #e61539;
}

/* Portfolio Gallery Section */
.portfolio-gallery-section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-12);
}

/* Portfolio Gallery - Masonry-style Grid */
.portfolio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

/* Portfolio Item */
.portfolio-item {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.02), rgba(13, 15, 19, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  transition: 
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.7);
}

/* Hidden state for filter animation */
.portfolio-item.hidden {
  display: none;
}

/* Portfolio Item Image Wrapper */
.portfolio-item__image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-surface);
}

.portfolio-item__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-item__image {
  transform: scale(1.08);
}

/* Portfolio Item Overlay */
.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255, 23, 68, 0.88), rgba(0, 0, 0, 0.92));
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 2;
}

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

/* View Button in Overlay */
.portfolio-item__view {
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: 
    background var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast);
}

.portfolio-item__view:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #ffffff;
  transform: scale(1.08);
}

/* Portfolio Item Info */
.portfolio-item__info {
  padding: var(--space-4);
}

.portfolio-item__title {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}

.portfolio-item__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ========================================
   Lightbox Modal
   ======================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.95);
  opacity: 0;
  visibility: hidden;
  transition: 
    opacity var(--transition-normal),
    visibility var(--transition-normal);
  backdrop-filter: blur(8px);
}

.lightbox[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.lightbox[aria-hidden="false"] .lightbox__content {
  transform: scale(1);
}

.lightbox__image {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox__info {
  text-align: center;
  padding: var(--space-4);
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.04), rgba(13, 15, 19, 0.95));
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-width: 300px;
}

.lightbox__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.lightbox__artist {
  font-size: var(--font-size-base);
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.lightbox__category {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Lightbox Close Button */
.lightbox__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: 
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
  z-index: 10;
}

.lightbox__close:hover {
  background: rgba(255, 23, 68, 0.9);
  border-color: var(--color-primary);
  transform: rotate(90deg);
}

/* Lightbox Navigation Buttons */
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: 
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
  z-index: 10;
}

.lightbox__nav--prev {
  left: var(--space-4);
}

.lightbox__nav--next {
  right: var(--space-4);
}

.lightbox__nav:hover {
  background: rgba(255, 23, 68, 0.9);
  border-color: var(--color-primary);
}

.lightbox__nav--prev:hover {
  transform: translateY(-50%) translateX(-4px);
}

.lightbox__nav--next:hover {
  transform: translateY(-50%) translateX(4px);
}

/* ========================================
   Responsive Design
   ======================================== */

/* Large tablets */
@media (max-width: 1024px) {
  .portfolio-gallery {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
  }
}

/* Tablets */
@media (max-width: 768px) {
  .section--hero-portfolio {
    padding-top: var(--space-12);
    padding-bottom: var(--space-8);
  }

  .hero-portfolio__description {
    font-size: var(--font-size-sm);
  }

  .portfolio-filters {
    gap: var(--space-2);
  }

  .portfolio-filter {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }

  .portfolio-gallery {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-4);
  }

  .portfolio-item__info {
    padding: var(--space-3);
  }

  .lightbox__content {
    max-width: 95vw;
    max-height: 95vh;
  }

  .lightbox__image {
    max-height: 70vh;
  }

  .lightbox__info {
    min-width: auto;
    width: 100%;
  }

  .lightbox__nav {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .lightbox__close {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }
}

/* Mobile devices */
@media (max-width: 480px) {
  .section--hero-portfolio {
    padding-top: var(--space-10);
    padding-bottom: var(--space-6);
  }

  .portfolio-filters {
    gap: var(--space-2);
  }

  .portfolio-gallery {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .portfolio-item__image-wrapper {
    aspect-ratio: 4 / 5;
  }

  .lightbox__nav {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .lightbox__nav--prev {
    left: var(--space-2);
  }

  .lightbox__nav--next {
    right: var(--space-2);
  }

  .lightbox__close {
    top: var(--space-2);
    right: var(--space-2);
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
  }

  .lightbox__title {
    font-size: var(--font-size-lg);
  }

  .lightbox__info {
    padding: var(--space-3);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.portfolio-item {
  animation: fadeInUp 0.5s ease-out;
}

/* Stagger animation for gallery items */
.portfolio-item:nth-child(1) { animation-delay: 0.05s; }
.portfolio-item:nth-child(2) { animation-delay: 0.1s; }
.portfolio-item:nth-child(3) { animation-delay: 0.15s; }
.portfolio-item:nth-child(4) { animation-delay: 0.2s; }
.portfolio-item:nth-child(5) { animation-delay: 0.25s; }
.portfolio-item:nth-child(6) { animation-delay: 0.3s; }
.portfolio-item:nth-child(7) { animation-delay: 0.35s; }
.portfolio-item:nth-child(8) { animation-delay: 0.4s; }
.portfolio-item:nth-child(9) { animation-delay: 0.45s; }

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .portfolio-item {
    animation: none;
  }
}