/* =============================================================================
   product.css — Vynovis Product Detail Page Styles
   Per-product theming via --product-accent-color CSS custom property
   ============================================================================= */


/* =============================================================================
   1. PRODUCT HERO
   ============================================================================= */

.product-hero {
  min-height: 500px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-12);
  padding-block: var(--space-16);
  background: color-mix(in srgb, var(--product-accent-color) 5%, var(--color-surface));
  position: relative;
  overflow: hidden;
}

.product-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 80% at 70% 50%,
    color-mix(in srgb, var(--product-accent-color) 8%, transparent),
    transparent 70%
  );
  pointer-events: none;
}

.product-hero__content {
  position: relative;
  z-index: 1;
}

.product-hero__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--product-accent-color);
  background: color-mix(in srgb, var(--product-accent-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--product-accent-color) 25%, transparent);
  border-radius: var(--radius-pill);
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-5);
}

.product-hero__title {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-neutral-900);
  line-height: 1.1;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.product-hero__tagline {
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--product-accent-color);
  margin-bottom: var(--space-5);
  font-style: italic;
}

.product-hero__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 52ch;
}

.product-hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.product-hero__image {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-hero__image img {
  max-width: 400px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow:
    0 20px 60px color-mix(in srgb, var(--product-accent-color) 20%, rgba(0,0,0,0.15)),
    0 4px 16px rgba(0,0,0,0.08);
  transition: transform var(--transition-slow);
  object-fit: cover;
}

.product-hero__image img:hover {
  transform: scale(1.03) translateY(-4px);
}

/* =============================================================================
   2. PRODUCT STATS ROW
   ============================================================================= */

.product-stats {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

.product-stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1.5px solid color-mix(in srgb, var(--product-accent-color) 30%, var(--color-neutral-100));
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-5);
  white-space: nowrap;
}

.product-stat__icon {
  color: var(--product-accent-color);
  font-size: 1.1em;
  line-height: 1;
}

/* =============================================================================
   3. INGREDIENT TABLE
   ============================================================================= */

.ingredient-table {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-neutral-100);
  margin-bottom: var(--space-6);
}

.ingredient-table__head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--product-accent-color);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ingredient-table__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-neutral-100);
  align-items: start;
  transition: background var(--transition-fast);
}

.ingredient-table__row:last-child {
  border-bottom: none;
}

.ingredient-table__row:nth-child(even) {
  background: color-mix(in srgb, var(--product-accent-color) 4%, var(--color-surface));
}

.ingredient-table__row:hover {
  background: color-mix(in srgb, var(--product-accent-color) 8%, var(--color-surface));
}

.ingredient-table__name {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: var(--text-base);
}

.ingredient-table__sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  font-weight: 400;
}

.ingredient-table__amount {
  font-weight: 700;
  color: var(--product-accent-color);
  font-size: var(--text-base);
  text-align: right;
  white-space: nowrap;
}

.ingredient-note {
  background: color-mix(in srgb, var(--product-accent-color) 6%, var(--color-neutral-50));
  border-left: 4px solid var(--product-accent-color);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* =============================================================================
   4. BENEFITS GRID
   ============================================================================= */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.benefit-card {
  background: var(--color-surface);
  border: 1px solid var(--color-neutral-100);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.benefit-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.benefit-card__icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--product-accent-color) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
}

.benefit-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.benefit-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* =============================================================================
   5. INDICATIONS LIST
   ============================================================================= */

.indications-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-3) var(--space-8);
  list-style: none;
}

.indications-list li {
  position: relative;
  padding-left: var(--space-8);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.indications-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--product-accent-color);
  font-weight: 700;
  font-size: 1.1em;
  width: var(--space-6);
  height: var(--space-6);
  background: color-mix(in srgb, var(--product-accent-color) 12%, transparent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  text-align: center;
  padding-top: 2px;
}

/* =============================================================================
   6. DOSAGE CALLOUT
   ============================================================================= */

.dosage-callout {
  background: color-mix(in srgb, var(--product-accent-color) 6%, var(--color-neutral-50));
  border-left: 4px solid var(--product-accent-color);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: var(--space-6) var(--space-8);
  margin-bottom: var(--space-6);
}

.dosage-callout__label {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--product-accent-color);
  margin-bottom: var(--space-2);
}

.dosage-callout__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.dosage-disclaimer {
  background: var(--color-neutral-50);
  border: 1px solid var(--color-neutral-100);
  border-left: 4px solid var(--color-neutral-300);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.6;
}

/* =============================================================================
   7. FAQ ACCORDION
   ============================================================================= */

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq__item {
  border: 1.5px solid var(--color-neutral-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq__item--open {
  border-color: color-mix(in srgb, var(--product-accent-color) 40%, transparent);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--product-accent-color) 10%, transparent);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  background: var(--color-surface);
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.faq__item--open .faq__question {
  color: var(--product-accent-color);
  background: color-mix(in srgb, var(--product-accent-color) 5%, var(--color-surface));
}

.faq__question:hover {
  background: color-mix(in srgb, var(--product-accent-color) 4%, var(--color-surface));
}

.faq__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--product-accent-color) 12%, transparent);
  color: var(--product-accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2em;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition-base), background var(--transition-base);
}

.faq__item--open .faq__icon {
  transform: rotate(45deg);
  background: color-mix(in srgb, var(--product-accent-color) 20%, transparent);
}

.faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-base);
}

.faq__item--open .faq__answer {
  grid-template-rows: 1fr;
}

.faq__answer-inner {
  overflow: hidden;
}

.faq__answer-content {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  background: color-mix(in srgb, var(--product-accent-color) 5%, var(--color-surface));
}

/* =============================================================================
   8. RELATED PRODUCTS (product cards on product pages)
   ============================================================================= */

.related-products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-neutral-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.product-card:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}

.product-card__image-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-neutral-50);
}

.product-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image-wrap img {
  transform: scale(1.06);
}

.product-card__body {
  padding: var(--space-5) var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.product-card__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}

.product-card__cta {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-brand-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.product-card__cta::after {
  content: "→";
  transition: transform var(--transition-fast);
}

.product-card:hover .product-card__cta::after {
  transform: translateX(4px);
}

/* =============================================================================
   9. PAGE-LEVEL DISCLAIMER
   ============================================================================= */

.disclaimer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-neutral-100);
}

.disclaimer__text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.7;
  text-align: center;
  max-width: 72ch;
  margin-inline: auto;
}

/* =============================================================================
   10. SECTION HELPERS (product-page specific)
   ============================================================================= */

.section-heading {
  margin-bottom: var(--space-10);
}

.section-heading__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.section-heading__title span {
  color: var(--product-accent-color);
}

.section-heading__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 60ch;
}

/* =============================================================================
   11. RESPONSIVE BREAKPOINTS
   ============================================================================= */

@media (max-width: 900px) {
  .product-hero {
    grid-template-columns: 1fr;
    text-align: center;
    min-height: auto;
    padding-block: var(--space-12);
    gap: var(--space-8);
  }

  .product-hero__image {
    order: -1;
  }

  .product-hero__image img {
    max-width: 320px;
  }

  .product-hero__desc {
    margin-inline: auto;
  }

  .product-hero__actions {
    justify-content: center;
  }

  .product-stats {
    justify-content: center;
  }

  .ingredient-table__head,
  .ingredient-table__row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .ingredient-table__amount {
    text-align: left;
    font-size: var(--text-sm);
  }
}

@media (max-width: 600px) {
  .product-hero__title {
    font-size: var(--text-4xl);
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .indications-list {
    grid-template-columns: 1fr;
  }

  .related-products-grid {
    grid-template-columns: 1fr;
  }

  .faq__question {
    padding: var(--space-4) var(--space-5);
    font-size: var(--text-sm);
  }

  .faq__answer-content {
    padding: 0 var(--space-5) var(--space-4);
    font-size: var(--text-sm);
  }

  .dosage-callout {
    padding: var(--space-5) var(--space-6);
  }
}