/**
 * Product Detail Page Styles
 * Shared base styles and layout variants for product detail pages.
 * Layouts: .layout-side-story | .layout-stacked | .layout-mosaic
 */

/* ================================================================
 * BASE STYLES (shared across all layouts)
 * ================================================================ */

.product-layout-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Hero image */
.product-layout-container .hero-image {
  width: 100%;
}

.product-layout-container .hero-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* Typography */
.product-layout-container .product-title,
.product-layout-container .hero-content h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-family: var(--font-ibm);
}

.product-layout-container .product-description {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-color);
  margin-bottom: 1rem;
}

/* Badge */
.product-layout-container .badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--accent-orange-light);
  color: var(--primary-color);
  border-radius: 4px;
  font-weight: 600;
  margin-top: 1rem;
}

/* Card pattern (shared) */
.product-layout-container .product-detail-card {
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  padding: 2rem;
}

/* Auth wall card */
.product-layout-container .auth-wall-card {
  background-color: var(--primary-light);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.product-layout-container .auth-wall-card h2 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.product-layout-container .auth-wall-card p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.product-layout-container .auth-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Generator card */
.product-layout-container .generator-card {
  background-color: var(--bg-white);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.product-layout-container .generator-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.product-layout-container .generator-card p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.product-layout-container .generator-card .form-group {
  margin-bottom: 1.5rem;
}

.product-layout-container .generator-card label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  font-weight: 500;
}

.product-layout-container .generator-card select,
.product-layout-container .generator-card input[type="text"],
.product-layout-container .generator-card input[type="file"] {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.product-layout-container .generator-card.coming-soon-card {
  opacity: 0.85;
}

.product-layout-container .generator-card.coming-soon-card form {
  pointer-events: none;
  opacity: 0.7;
}

.product-layout-container .generator-card.coming-soon-card form {
  pointer-events: none;
  opacity: 0.7;
}

.product-layout-container .action-buttons button {
  width: 100%;
}

.product-layout-container .action-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-layout-container .trial-option {
  padding: 1rem;
  background-color: var(--primary-light);
  border-radius: 8px;
  border: 1px solid var(--primary-color);
}

.product-layout-container .trial-badge {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-layout-container .trial-note {
  font-size: 0.9rem;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.product-layout-container .full-option {
  padding: 1rem;
  background-color: var(--bg-white);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.product-layout-container .full-option p {
  margin-bottom: 1rem;
  color: var(--text-color);
}

/* Variant items */
.product-layout-container .variant-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background-color: var(--bg-white);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.product-layout-container .variant-item .variant-name {
  font-weight: 600;
  color: var(--primary-color);
}

.product-layout-container .variant-item .variant-desc {
  font-size: 0.875rem;
  color: var(--text-color);
  opacity: 0.8;
}

.product-layout-container .variants-grid {
  margin-top: 2rem;
}

.product-layout-container .variants-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Variant tiles (masonry-style for montessori_tactile_letters) */
.product-layout-container .variants-tiles {
  column-count: 3;
  column-gap: 1rem;
}

.product-layout-container .variant-tile {
  break-inside: avoid;
  display: inline-block;
  width: 100%;
  margin-bottom: 1rem;
  background: white;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  padding: 1.25rem;
}

.product-layout-container .variant-tile .variant-name {
  display: block;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.product-layout-container .variant-tile .variant-desc {
  display: block;
  font-size: 0.875rem;
  color: var(--text-color);
  opacity: 0.8;
  margin-bottom: 1rem;
}

.product-layout-container .variant-tile .variant-attrs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.product-layout-container .variant-tile .attr-chip {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary-color);
  background: var(--primary-light, #eef4ff);
  border-radius: 99px;
  padding: 0.2rem 0.6rem;
  white-space: nowrap;
}

.product-layout-container .variant-tile form {
  margin-top: 0;
}

.product-layout-container .variant-tile form button[type="submit"],
.product-layout-container .variant-tile .button {
  width: 100%;
}

.product-layout-container .variants-grid h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.product-layout-container .variants-grid .variants-grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

/* Variant grid (card style for Layout 2/3) */
.product-layout-container .variants-grid-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.product-layout-container .variant-card-item {
  background-color: var(--bg-white);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.product-layout-container .variant-card-item .variant-name {
  font-weight: 600;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
}

.product-layout-container .variant-card-item .variant-desc {
  font-size: 0.875rem;
  color: var(--text-color);
  opacity: 0.8;
  display: block;
  margin-bottom: 0.5rem;
}

.product-layout-container .variant-card-item .price {
  color: var(--text-color);
}

.product-layout-container .variant-card-item form {
  margin-top: 1rem;
}

.product-layout-container .variant-card-item form button[type="submit"] {
  width: 100%;
}

/* Instructions / FAQ section */
.product-layout-container .product-instructions,
.product-layout-container .product-faq {
  margin-top: 2rem;
  padding: 2rem;
  background: var(--bg-white);
  border-left: 4px solid var(--accent-orange);
}

.product-layout-container .product-instructions h2,
.product-layout-container .product-faq h3 {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.product-layout-container .instructions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  margin-top: 1.5rem;
}

.product-layout-container .instruction-item {
  padding: 0 1.5rem;
  border-left: 1px solid rgba(0, 0, 0, 0.12);
}

.product-layout-container .instruction-item:first-child {
  padding-left: 0;
  border-left: none;
}

.product-layout-container .instruction-item h3 {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

/* CTA buttons - product detail uses pink primary per design */
.button-primary-product-pages {
  background: var(--accent-primary) !important;
  color: white !important;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
}

.button-primary-product-pages:hover {
  background: #c41445 !important;
  color: white !important;
}

.button-secondary-product-pages {
  background: white !important;
  border: 2px solid var(--primary-color) !important;
  color: var(--primary-color) !important;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
}

.button-secondary-product-pages:hover {
  background: var(--primary-light) !important;
  color: var(--primary-color) !important;
}

.product-layout-container .button-small {
  padding: 0.5rem 1rem;
}

.product-layout-container .button.in-cart {
  background: var(--primary-light) !important;
  color: var(--primary-color) !important;
}

/* Self-hosted product video */
.product-layout-container .product-video {
  height: 620px;
  width: auto;
  max-width: 100%;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
  cursor: pointer;
}

/* Fullscreen expand hint on hover */
.layout-side-story-image:has(.product-video) {
  position: relative;
}

.layout-side-story-image:has(.product-video)::after {
  content: '';
  position: absolute;
  bottom: 0.6rem;
  right: 0.6rem;
  width: 28px;
  height: 28px;
  background: rgba(0, 0, 0, 0.5) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cpolyline points='9 21 3 21 3 15'/%3E%3Cline x1='21' y1='3' x2='14' y2='10'/%3E%3Cline x1='3' y1='21' x2='10' y2='14'/%3E%3C/svg%3E") center/16px no-repeat;
  border-radius: 6px;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.layout-side-story-image:has(.product-video):hover::after {
  opacity: 1;
}

/* ================================================================
 * LAYOUT 1: Side Story (55/45 two-column, sticky right)
 * ================================================================ */

.product-layout-container.layout-side-story {
  background: var(--bg-polar);
  padding: 2rem;
}

.layout-side-story .layout-side-story-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
  align-items: center;
}

.layout-side-story .layout-side-story-image {
  grid-column: 1;
  grid-row: 1;
}

.layout-side-story .layout-side-story-right {
  grid-column: 2;
  grid-row: 1 / -1;
}

.layout-side-story .product-interaction-area-full {
  margin-top: 2rem;
}

.layout-side-story .layout-side-story-media {
  grid-column: 1;
  grid-row: 2;
}

.layout-side-story .product-interaction-area {
  margin: 0;
}

.layout-side-story .product-instructions,
.layout-side-story .product-faq {
  margin-top: 3rem;
  grid-column: 1 / -1;
}

/* ================================================================
 * LAYOUT 2: Stacked Sections (full-width bands)
 * ================================================================ */

.product-layout-container.layout-stacked {
  max-width: none;
  padding: 0;
}

.layout-stacked .stacked-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.layout-stacked .stacked-section-hero {
  background: var(--bg-polar);
  padding-bottom: 1.5rem;
}

.layout-stacked .hero-cta-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 1.5rem auto 0;
  padding: 0 2rem;
}

.layout-stacked .stacked-section-hero .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.layout-stacked .stacked-section-action {
  background: var(--primary-light);
}

.layout-stacked .stacked-section-action .section-inner {
  max-width: 700px;
  margin: 0 auto;
}

.layout-stacked .stacked-section-browse {
  background: var(--bg-white);
}

.layout-stacked .stacked-section-browse .browse-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.layout-stacked .stacked-section-browse .browse-col-left .product-faq {
  border-left: none;
  margin-top: 0;
  padding-left: 0;
  background: transparent;
}

.layout-stacked .stacked-section-browse .browse-col-right .variants-tiles {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.layout-stacked .stacked-section-browse .browse-col-right .variant-tile {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0;
}

.layout-stacked .stacked-section-browse .browse-col-right .variant-tile .variant-name {
  margin-bottom: 0;
}

.layout-stacked .stacked-section-browse .browse-col-right .variant-tile form,
.layout-stacked .stacked-section-browse .browse-col-right .variant-tile button {
  width: auto;
  margin-top: 0;
}

@media (max-width: 768px) {
  .layout-stacked .stacked-section-browse .browse-columns {
    grid-template-columns: 1fr;
  }
}

.layout-stacked .stacked-section-browse .variants-grid-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.layout-stacked .stacked-section-learn {
  background: var(--bg-polar);
  padding-top: 1.5rem;
}

.layout-stacked .stacked-section-learn .product-instructions,
.layout-stacked .stacked-section-learn .product-faq {
  margin-top: 0;
  background: transparent;
  border-left: none;
  padding: 0;
}

/* ================================================================
 * LAYOUT 3: Card Mosaic (cards on tinted canvas)
 * ================================================================ */

.product-layout-container.layout-mosaic {
  background: var(--bg-polar);
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.layout-mosaic .mosaic-hero-card {
  grid-column: 1 / -1;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  padding: 2rem;
}

.layout-mosaic .mosaic-hero-card .hero-inner {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 2rem;
  align-items: center;
}

.layout-mosaic .mosaic-cta-card {
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  padding: 2rem;
}

.layout-mosaic .mosaic-cta-card.full-width {
  grid-column: 1 / -1;
}

.layout-mosaic .mosaic-info-card {
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  padding: 2rem;
}

.layout-mosaic .mosaic-info-card h3 {
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.layout-mosaic .mosaic-info-card p {
  color: var(--text-color);
  margin: 0;
}

.layout-mosaic .mosaic-variants-header {
  grid-column: 1 / -1;
  color: var(--primary-color);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.layout-mosaic .mosaic-variants {
  display: contents;
}

.layout-mosaic .mosaic-variants .variant-card-item {
  /* Each variant is a grid child, fills one cell */
}

.layout-mosaic .mosaic-instructions-card {
  grid-column: 1 / -1;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-left: 4px solid var(--accent-orange);
}

/* ================================================================
 * RESPONSIVE
 * ================================================================ */

@media (max-width: 768px) {
  .product-layout-container .product-title,
  .product-layout-container .hero-content h1 {
    font-size: 2rem;
  }

  .product-layout-container {
    padding: 1rem;
  }

  /* Layout 1: stack columns - order: image, title/CTA, media */
  .layout-side-story .layout-side-story-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .layout-side-story .layout-side-story-image {
    grid-column: 1;
    grid-row: 1;
  }

  .layout-side-story .layout-side-story-right {
    grid-column: 1;
    grid-row: 2;
    position: static;
  }

  .layout-side-story .layout-side-story-media {
    grid-column: 1;
    grid-row: 3;
  }

  /* Layout 2: stack hero, single column variants */
  .layout-stacked .stacked-section-hero .section-inner {
    grid-template-columns: 1fr;
  }

  .layout-stacked .stacked-section-browse .variants-grid-cards {
    grid-template-columns: 1fr;
  }

  .layout-stacked .stacked-section {
    padding: 2rem 1rem;
  }

  /* Layout 3: single column */
  .layout-mosaic {
    grid-template-columns: 1fr;
  }

  .layout-mosaic .mosaic-hero-card .hero-inner {
    grid-template-columns: 1fr;
  }

  .product-layout-container .instructions-grid {
    grid-template-columns: 1fr;
  }

  .product-layout-container .instruction-item {
    padding: 0.75rem 0;
    border-left: none;
    border-top: 1px solid rgba(0, 0, 0, 0.12);
  }

  .product-layout-container .instruction-item:first-child {
    border-top: none;
    padding-top: 0;
  }

  .product-layout-container .variants-grid-cards {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 992px) {
  .product-layout-container .variants-tiles {
    column-count: 2;
  }
}

@media (max-width: 576px) {
  .product-layout-container .variants-tiles {
    column-count: 1;
  }
}

/* ================================================================
 * OPTIONS STACK (Duet Readers three-option cards)
 * ================================================================ */

.product-layout-container .options-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.product-layout-container .option-card {
  background-color: var(--bg-white);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.product-layout-container .option-card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.product-layout-container .option-card-header h3 {
  flex: 1;
  min-width: 0;
  color: var(--primary-color);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.product-layout-container .option-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.product-layout-container .coming-soon-pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--accent-orange-light);
  color: var(--primary-color);
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
}

.product-layout-container .freebie-pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--accent-green-light, #d4edda);
  color: var(--primary-color);
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
}

.product-layout-container .option-card .variant-description {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-color);
  line-height: 1.5;
}

.product-layout-container .option-card .variant-description ul {
  margin-top: 0.5rem;
  margin-left: 1.25rem;
  list-style-type: disc;
}

.product-layout-container .option-card .variant-description p {
  margin-bottom: 0.5rem;
}

.product-layout-container .option-card p {
  margin-bottom: 1.25rem;
  color: var(--text-color);
  line-height: 1.5;
}

.product-layout-container .option-card.is-coming-soon {
  opacity: 0.9;
  border-style: dashed;
}

.product-layout-container .option-card.is-locked .sign-in-prompt {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-layout-container .option-card.is-locked .sign-in-prompt span {
  color: var(--text-color);
  opacity: 0.85;
}

.product-layout-container .sign-in-prompt {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.product-layout-container .sign-in-prompt .auth-buttons {
  display: flex;
  gap: 0.75rem;
}

.product-layout-container .option-card .variants-inline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.product-layout-container .option-card .variants-inline .variant-card-item {
  width: 100%;
}

.product-layout-container .option-card .variants-inline .variant-card-item form button {
  width: auto;
}

.product-layout-container .button-coming-soon {
  cursor: default;
  pointer-events: none;
}