/* =============================================================================
   PORTFOLIO PAGE STYLES
   Clean, maintainable CSS with BEM methodology
   ============================================================================= */

/* =============================================================================
   ACCESSIBILITY & UTILITIES
   ============================================================================= */

/* Screen reader only content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =============================================================================
   NAVIGATION OVERRIDES (using updated class names)
   ============================================================================= */

.main-navigation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.brand-logo__text {
  font-family: var(--font-secondary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-secondary);
  letter-spacing: 0.02em;
}

.brand-logo__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-light);
  margin-top: -2px;
}

.nav-menu__link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu__link::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast);
}

.nav-menu__link:hover,
.nav-menu__link--active {
  color: var(--color-secondary);
}

.nav-menu__link:hover::after,
.nav-menu__link--active::after {
  width: 100%;
}

.mobile-menu-toggle__line {
  width: 25px;
  height: 2px;
  background-color: var(--color-secondary);
  transition: all var(--transition-fast);
}

/* =============================================================================
   PORTFOLIO HERO SECTION
   ============================================================================= */

.portfolio-hero {
  padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
  background: linear-gradient(135deg, var(--color-primary) 0%, #0f0f0f 100%);
  position: relative;
  overflow: hidden;
}

.portfolio-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at 70% 20%,
    rgba(212, 175, 55, 0.1) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.portfolio-hero__content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.portfolio-hero__title {
  font-family: var(--font-secondary);
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.portfolio-hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-gray-400);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
}

/* =============================================================================
   MAIN PORTFOLIO CONTENT
   ============================================================================= */

.portfolio-main {
  padding: var(--section-padding) 0;
  background-color: var(--color-primary);
  position: relative;
  z-index: 10;
}

/* =============================================================================
   GALLERY FILTERS
   ============================================================================= */

.gallery-filters {
  margin-bottom: var(--space-8);
}

.gallery-filters__buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.filter-button,
.filter-btn {
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-400);
  background-color: transparent;
  border: 2px solid var(--color-gray-600);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}

.filter-button:hover,
.filter-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 6px -1px rgba(212, 175, 55, 0.2);
}

.filter-button--active,
.filter-btn.active {
  color: var(--color-primary);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.filter-button__count {
  font-size: var(--font-size-xs);
  background-color: rgba(255, 255, 255, 0.2);
  padding: 2px 6px;
  border-radius: var(--border-radius-full);
  min-width: 20px;
  text-align: center;
}

.filter-button--active .filter-button__count {
  background-color: rgba(0, 0, 0, 0.2);
}

/* =============================================================================
   PORTFOLIO GRID - MAIN GALLERY
   Fixed: Images are now visible immediately on load
   Enhanced: Compact mobile grid layout (2-3 columns)
   ============================================================================= */

.portfolio-gallery {
  margin-bottom: var(--space-8);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* Mobile: 3 columns consistently */
  gap: var(--space-3); /* Compact spacing on mobile */
  grid-auto-flow: row; /* Ensure items flow in rows */
  align-items: start; /* Align items to start of grid cells */
}

/* Loading state */
.portfolio-grid__loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
  color: var(--color-gray-400);
  font-size: var(--font-size-lg);
  gap: var(--space-4);
}

/* Infinite scroll elements - ensure they don't break grid layout */
#scroll-sentinel,
.loading-more-indicator {
  grid-column: 1 / -1 !important;
  width: 100% !important;
  height: auto !important;
  min-height: 1px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(212, 175, 55, 0.2);
  border-top: 3px solid var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Error state */
.portfolio-grid__error {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16);
  color: var(--color-gray-400);
}

.portfolio-grid__error p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
  color: #ff6b6b;
}

/* Empty state for when no images match filter */
.portfolio-grid__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16);
  color: var(--color-gray-400);
}

.portfolio-grid__empty p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

/* No results state */
.portfolio-no-results {
  text-align: center;
  padding: var(--space-16);
  color: var(--color-gray-400);
}

.portfolio-no-results p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

/* Individual portfolio items */
.portfolio-item {
  aspect-ratio: 4/3;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;

  /* FIXED: Images are visible immediately - no opacity: 0 */
  opacity: 1;
  transform: translateY(0) translateZ(0);

  /* Ensure proper grid item behavior */
  grid-column: span 1;
  width: 100%;
  height: auto;
}

.portfolio-item:hover {
  transform: translateY(-8px) scale(1.02) translateZ(0);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 10px 20px -5px rgba(212, 175, 55, 0.1);
}

.portfolio-item__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.portfolio-item:hover .portfolio-item__image {
  transform: scale(1.05);
}

.portfolio-item__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.3) 100%
  );
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

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

.portfolio-item__title,
.image-modal__title,
.image-modal__category,
.gallery-title {
  display: none !important;
}

.portfolio-item__info {
  text-align: center;
}

.portfolio-item__category {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: capitalize;
  margin: 0;
}

/* Animation for new items when filtering */
.portfolio-item--fade-in {
  animation: portfolioFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.portfolio-item--fade-out {
  animation: portfolioFadeOutDown 0.3s cubic-bezier(0.4, 0, 0.6, 1) forwards;
}

@keyframes portfolioFadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes portfolioFadeOutDown {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
}

/* =============================================================================
   CTA BUTTONS (Reusable component)
   ============================================================================= */

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.cta-button--primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.cta-button--primary:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-button--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}

.cta-button__icon {
  transition: transform var(--transition-fast);
}

.cta-button:hover .cta-button__icon {
  transform: translateX(4px);
}

/* =============================================================================
   PORTFOLIO CTA SECTION
   ============================================================================= */

/* Add spacing to the container that holds the CTA */
.portfolio-main .container {
  padding-bottom: 0;
}

.portfolio-cta {
  margin-top: 0;
  margin-bottom: var(--space-16);
  padding-bottom: 0;
}

.portfolio-cta__content {
  text-align: center;
  padding: var(--space-12) var(--space-8);
  padding-bottom: var(--space-12);
  background: linear-gradient(
    135deg,
    var(--color-primary-lighter),
    rgba(212, 175, 55, 0.05)
  );
  border-radius: var(--border-radius-2xl);
  position: relative;
  overflow: hidden;
}

.portfolio-cta__content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(212, 175, 55, 0.1),
    transparent
  );
  animation: shimmer 3s infinite;
}

.portfolio-cta__title {
  font-family: var(--font-secondary);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 2;
}

.portfolio-cta__text {
  font-size: var(--font-size-lg);
  color: var(--color-gray-400);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
}

/* =============================================================================
   IMAGE MODAL
   ============================================================================= */

/* =============================================================================
   FOOTER OVERRIDES
   ============================================================================= */

.site-footer {
  padding: var(--space-12) 0;
  background-color: var(--color-primary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer__text {
  text-align: right;
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

/* =============================================================================
   RESPONSIVE DESIGN
   Mobile-first approach with consistent 3-column grid and improved touch targets
   ============================================================================= */

/* Small phones - 3 columns with tight spacing */
@media (max-width: 479px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .portfolio-item {
    border-radius: var(
      --border-radius
    ); /* Slightly smaller radius on tiny screens */
  }
}

/* Larger phones - 3 columns with slightly more spacing */
@media (min-width: 480px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
  }
}

/* Tablet and larger phones */
@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

/* Desktop and larger tablets */
@media (min-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }

  /* Extra spacing for desktop CTA section */
  .portfolio-main .container {
    padding-bottom: 0;
  }

  .portfolio-cta {
    margin-bottom: var(--space-12);
    padding-bottom: 0;
  }
}

/* Large desktop */
@media (min-width: 1200px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-10);
  }
}

/* Mobile optimizations */
@media (max-width: 767px) {
  .portfolio-hero {
    padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-12);
  }

  .portfolio-hero__title {
    font-size: var(--font-size-4xl);
  }

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

  .portfolio-main {
    padding: var(--space-8) 0 var(--space-8);
  }

  /* Reduce gap between filter section and grid on mobile */
  .portfolio-gallery {
    margin-top: var(--space-4);
    margin-bottom: var(--space-6);
  }

  .gallery-filters__buttons {
    gap: var(--space-2);
    margin-bottom: 0;
  }

  .filter-button {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }

  .portfolio-cta {
    margin-bottom: var(--space-10);
  }

  .portfolio-cta__content {
    padding: var(--space-10) var(--space-4);
    padding-bottom: var(--space-10);
    margin-top: 0;
  }

  .portfolio-cta__title {
    font-size: var(--font-size-2xl);
  }

  .portfolio-cta__text {
    font-size: var(--font-size-base);
  }

  .site-footer__content {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .site-footer__text {
    text-align: center;
  }

  .gallery-filters {
    margin-bottom: var(--space-4);
  }
}

/* Very small screens */
@media (max-width: 480px) {
  .portfolio-hero__title {
    font-size: var(--font-size-3xl);
  }

  .portfolio-hero__subtitle {
    font-size: var(--font-size-base);
  }

  .filter-button__count {
    display: none; /* Hide counts on very small screens */
  }
}

/* =============================================================================
   PERFORMANCE & ACCESSIBILITY
   ============================================================================= */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  .portfolio-item,
  .filter-button,
  .cta-button {
    transition-duration: 0.01ms !important;
  }

  .portfolio-item--fade-in,
  .portfolio-item--fade-out {
    animation: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .filter-button {
    border-width: 3px;
  }

  .portfolio-item__overlay {
    background: rgba(0, 0, 0, 0.9);
  }
}

/* Dark mode support (if needed in future) */
@media (prefers-color-scheme: dark) {
  /* Already dark by default, but can be extended */
}