/**
 * Photo Grid Section Component
 * Interactive photo grid with price-to-savings flip on hover
 */

.photo-grid {
  padding-top: var(--space-80);
  padding-bottom: var(--space-80);
}

@media (min-width: 1024px) {
  .photo-grid {
    padding-top: var(--space-96);
    padding-bottom: var(--space-96);
  }
}

/* Background Color Modifiers */
.photo-grid--bg-white {
  background-color: #fff;
}

.photo-grid--bg-light {
  background-color: #f5f5f5;
}

.photo-grid--bg-gray {
  background-color: #e8e8e8;
}

/* Section Header */
.photo-grid__header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-48);
}

.photo-grid__title {
  font-size: var(--fs-800);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .photo-grid__title {
    font-size: var(--fs-900);
  }
}

.photo-grid__subtitle {
  font-size: var(--fs-400);
  line-height: var(--lh-normal);
  color: #666;
}

/* Grid Layout */
.photo-grid__items {
  display: grid;
  gap: var(--space-24);
}

/* Column Modifiers */
.photo-grid__items--cols-2 {
  grid-template-columns: 1fr;
}

.photo-grid__items--cols-3 {
  grid-template-columns: 1fr;
}

.photo-grid__items--cols-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .photo-grid__items--cols-2,
  .photo-grid__items--cols-3,
  .photo-grid__items--cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .photo-grid__items--cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .photo-grid__items--cols-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-32);
  }
  
  .photo-grid__items--cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Photo Grid Card */
.photo-grid-card {
  position: relative;
  overflow: hidden;
  background: #fff;
  transition: transform 0.3s ease;
}

.photo-grid-card:hover {
  transform: translateY(-4px);
}

.photo-grid-card__link {
  display: block;
  position: relative;
  text-decoration: none;
  color: inherit;
}

/* Card Media */
.photo-grid-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f0f0;
}

.photo-grid-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.photo-grid-card:hover .photo-grid-card__image {
  transform: scale(1.05);
}

.photo-grid-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.3) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.photo-grid-card:hover .photo-grid-card__overlay {
  opacity: 1;
}

/* Price Flip Container */
.photo-grid-card__price-flip {
  position: absolute;
  bottom: var(--space-24);
  right: var(--space-24);
  z-index: 10;
  perspective: 1000px;
  width: 120px;
  height: 60px;
}

@media (min-width: 768px) {
  .photo-grid-card__price-flip {
    width: 140px;
    height: 70px;
  }
}

/* Price Front & Back */
.photo-grid-card__price-front,
.photo-grid-card__price-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 2px solid var(--color-text);
  padding: var(--space-12);
  backface-visibility: hidden;
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
}

.photo-grid-card__price-front {
  transform: rotateY(0deg);
}

.photo-grid-card__price-back {
  transform: rotateY(180deg);
}

/* Hover State - Flip */
.photo-grid-card:hover .photo-grid-card__price-front {
  transform: rotateY(-180deg);
}

.photo-grid-card:hover .photo-grid-card__price-back {
  transform: rotateY(0deg);
}

/* Price Text */
.photo-grid-card__label {
  font-size: var(--fs-100);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #22c55e;
  margin-bottom: var(--space-4);
}

.photo-grid-card__amount {
  font-size: var(--fs-500);
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .photo-grid-card__amount {
    font-size: var(--fs-600);
  }
}

/* Card Content */
.photo-grid-card__content {
  padding: var(--space-20);
  background: #fff;
}

.photo-grid-card__title {
  font-size: var(--fs-400);
  font-weight: 600;
  line-height: var(--lh-tight);
  color: var(--color-text);
  margin: 0;
}

/* Mobile Adjustments */
@media (max-width: 767px) {
  .photo-grid {
    padding-top: var(--space-48);
    padding-bottom: var(--space-48);
  }
  
  .photo-grid__header {
    margin-bottom: var(--space-32);
  }
  
  .photo-grid__title {
    font-size: 1.75em;
  }
  
  .photo-grid__items {
    gap: var(--space-16);
  }
  
  .photo-grid-card__price-flip {
    width: 100px;
    height: 50px;
    bottom: var(--space-16);
    right: var(--space-16);
  }
  
  .photo-grid-card__amount {
    font-size: var(--fs-400);
  }
  
  .photo-grid-card__label {
    font-size: 0.625em;
  }
  
  .photo-grid-card__content {
    padding: var(--space-16);
  }
  
  .photo-grid-card__title {
    font-size: var(--fs-300);
  }
}

/* Accessibility: Reduce Motion */
@media (prefers-reduced-motion: reduce) {
  .photo-grid-card,
  .photo-grid-card__image,
  .photo-grid-card__overlay,
  .photo-grid-card__price-front,
  .photo-grid-card__price-back {
    transition: none;
  }
  
  .photo-grid-card:hover .photo-grid-card__image {
    transform: none;
  }
}