/* ================================
   Photography Page Styles
   ================================ */

/* Page Header */
.page-header {
  padding: var(--space-16) 0 var(--space-8);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  background: linear-gradient(135deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-primary) 50%,
    var(--color-bg-secondary) 100%
  );
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-overlay-light);
  pointer-events: none;
  z-index: 0;
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  background: linear-gradient(90deg, #F59E42, #E91E63);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-description {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

/* Category Filter - Sticky */
.category-filter-section {
  position: sticky;
  top: 72px; /* Height of header - positions filter below header */
  z-index: 15; /* Below header (20) and lightbox (40), but above content */
  background: var(--color-bg-primary);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.category-filter-section.sticky {
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.category-filter {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  padding: var(--space-8) 0;
}

.category-btn {
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition-all);
}

.category-btn:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

.category-btn.active {
  background-color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

/* Photography Gallery - CSS Columns Masonry Layout */
.photography-gallery {
  column-count: 3;
  column-gap: var(--space-6);
  margin-bottom: var(--space-12);
}

/* Prevent cards from breaking across columns */
.photography-gallery .photo-card {
  break-inside: avoid;
  margin-bottom: var(--space-6);
  display: inline-block;
  width: 100%;
}

/* Orientation-specific aspect ratios */
/* Default to square for cards without orientation class */
.photography-gallery .photo-card:not(.photo-card-portrait):not(.photo-card-landscape):not(.photo-card-square) {
  aspect-ratio: 1 / 1;
}

.photo-card-portrait {
  aspect-ratio: 2 / 3; /* Tall photos - preserves vertical performer shots */
}

.photo-card-square {
  aspect-ratio: 1 / 1; /* Square photos */
}

.photo-card-landscape {
  aspect-ratio: 3 / 2; /* Wide photos - preserves stage/crowd shots */
}

/* Responsive */
@media (max-width: 1200px) {
  .photography-gallery {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  .page-header {
    padding: var(--space-12) 0 var(--space-6);
  }

  .page-header h1 {
    font-size: var(--font-size-4xl);
    letter-spacing: 0.02em;
  }

  .page-description {
    font-size: var(--font-size-base);
  }

  .category-filter {
    gap: var(--space-2);
    padding: var(--space-6) 0;
  }

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

  .category-filter {
    padding: var(--space-6) 0;
  }

  .photography-gallery {
    column-count: 2;
    column-gap: var(--space-4);
  }

  .photography-gallery .photo-card {
    margin-bottom: var(--space-4);
  }
}

@media (max-width: 640px) {
  .photography-gallery {
    column-count: 1;
  }
}

/* ================================
   Back to Top Button
   ================================ */

.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  line-height: 1;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.3),
    0 0 30px rgba(102, 126, 234, 0.4);
}

.back-to-top:active {
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 3;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .back-to-top {
    width: 52px;
    height: 52px;
    bottom: var(--space-6);
    right: var(--space-6);
    font-size: 9px;
  }

  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}