/* ============================================
   PRODUCT PAGE — Shared Styles
   ============================================ */

/* Back link */
.product-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  color: rgba(26, 18, 37, 0.5);
  text-decoration: none;
  margin-bottom: var(--space-8);
  transition: color 0.2s;
}
.product-back:hover { color: var(--color-primary-bright); }
.product-back svg { width: 16px; height: 16px; }

/* Hero section */
.product-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
  padding-bottom: var(--space-16);
}
@media (min-width: 768px) {
  .product-hero {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

/* Product image container */
.product-hero__img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #f8f5fa 0%, #ede8f3 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  position: relative;
  overflow: hidden;
}
.product-hero__img-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,0.35) 0%, transparent 100%);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  pointer-events: none;
}
.product-hero__img {
  max-width: 280px;
  width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 20px 40px rgba(45, 27, 78, 0.12));
}

/* Product info */
.product-hero__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.product-hero__category {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-bright);
}
.product-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  color: var(--color-primary);
}
.product-hero__subtitle {
  font-size: var(--text-sm);
  color: rgba(26, 18, 37, 0.5);
  font-style: italic;
}
.product-hero__desc {
  font-size: var(--text-base);
  line-height: 1.7;
  color: rgba(26, 18, 37, 0.7);
  max-width: 520px;
  text-align: center;
}
.product-hero__price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary-bright);
}
.product-hero__price-note {
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--color-text-muted, #6b7280);
  margin-top: 4px;
  max-width: 32rem;
}
.product-hero__cta {
  margin-top: var(--space-2);
  display: flex; gap: 12px; flex-wrap: wrap;
}
.product-cta__buttons {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}

/* Quick facts strip */
.product-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(45, 27, 78, 0.06);
  border-bottom: 1px solid rgba(45, 27, 78, 0.06);
  margin-bottom: var(--space-16);
}
.product-fact {
  text-align: center;
  padding: var(--space-4);
}
.product-fact__icon {
  width: 36px;
  height: 36px;
  margin: 0 auto var(--space-2);
  color: var(--color-primary-bright);
}
.product-fact__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(26, 18, 37, 0.5);
  margin-bottom: 2px;
}
.product-fact__value {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
}

/* Content sections */
.product-section {
  margin-bottom: var(--space-16);
  text-align: center;
}
.product-section__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-bright);
  margin-bottom: var(--space-2);
  text-align: center;
  display: block;
}
.product-section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  text-align: center;
}
.product-section__text {
  font-size: var(--text-base);
  line-height: 1.8;
  color: rgba(26, 18, 37, 0.7);
  max-width: 720px;
  text-align: center;
  margin-inline: auto;
}
.product-section__text p + p {
  margin-top: var(--space-4);
}

/* Benefits grid */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 640px) {
  .benefits-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .benefits-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.benefit-card {
  background: rgba(248, 245, 250, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(45, 27, 78, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), box-shadow 0.3s;
}
.benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(45, 27, 78, 0.08);
}
.benefit-card__icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary-bright), var(--color-primary-hover));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--space-3);
  margin-inline: auto;
}
.benefit-card__icon svg { width: 20px; height: 20px; }
.benefit-card__title {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-1);
  text-align: center;
}
.benefit-card__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: rgba(26, 18, 37, 0.6);
  text-align: center;
}

/* How it works steps */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 640px;
  margin-inline: auto;
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.step__number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-bright), var(--color-primary-hover));
  color: white;
  font-weight: 700;
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.step__content { flex: 1; }
.step__title {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
  text-align: center;
}
.step__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: rgba(26, 18, 37, 0.6);
  text-align: center;
}

/* Important safety info */
.product-safety {
  background: rgba(248, 245, 250, 0.7);
  border: 1px solid rgba(45, 27, 78, 0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-8);
  margin-bottom: var(--space-16);
}
.product-safety__title {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.product-safety__title svg {
  width: 18px; height: 18px;
  color: var(--color-primary-bright);
}
.product-safety__text {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: rgba(26, 18, 37, 0.55);
  text-align: center;
}
.product-safety__text p + p { margin-top: var(--space-3); }

/* CTA bottom */
.product-cta {
  text-align: center;
  padding: var(--space-12) 0;
  border-top: 1px solid rgba(45, 27, 78, 0.06);
}
.product-cta__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.product-cta__desc {
  font-size: var(--text-base);
  color: rgba(26, 18, 37, 0.6);
  margin-bottom: var(--space-6);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* Ingredients list */
.ingredients-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.ingredient-tag {
  background: rgba(184, 77, 255, 0.08);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(184, 77, 255, 0.12);
}

/* ============================================
   SCROLL ANIMATIONS — Product Pages
   ============================================ */

/* Hero image float-in from left */
.product-hero__img-wrap[data-anim="fade"] {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.product-hero__img-wrap[data-anim="fade"].in-view {
  opacity: 1;
  transform: translateX(0);
}

/* Hero info slide-in from right */
.product-hero__info[data-anim="up"] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.product-hero__info[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Facts strip — staggered entrance */
.product-fact[data-anim="up"] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.product-fact[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Section labels & titles */
.product-section__label[data-anim="up"] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.product-section__label[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}
.product-section__title[data-anim="blur"] {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(10px);
  transition: opacity 0.7s ease, filter 0.7s ease, transform 0.7s ease;
}
.product-section__title[data-anim="blur"].in-view {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* Section text body */
.product-section__text[data-anim="up"] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease 0.15s, transform 0.6s ease 0.15s;
}
.product-section__text[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Benefit cards — staggered */
.benefit-card[data-anim="up"] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.benefit-card[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Steps — staggered */
.step[data-anim="up"] {
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.step[data-anim="up"].in-view {
  opacity: 1;
  transform: translateX(0);
}

/* Safety block */
.product-safety[data-anim="up"] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.product-safety[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Bottom CTA */
.product-cta__title[data-anim="blur"] {
  opacity: 0;
  filter: blur(6px);
  transition: opacity 0.7s ease, filter 0.7s ease;
}
.product-cta__title[data-anim="blur"].in-view {
  opacity: 1;
  filter: blur(0);
}
.product-cta__desc[data-anim="up"] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease 0.1s, transform 0.5s ease 0.1s;
}
.product-cta__desc[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}
.product-cta__buttons[data-anim="up"] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease 0.2s, transform 0.5s ease 0.2s;
}
.product-cta__buttons[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Ingredient tags */
.ingredient-tag[data-anim="up"] {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.ingredient-tag[data-anim="up"].in-view {
  opacity: 1;
  transform: scale(1);
}

/* Delay utility for staggering */
[data-delay="1"] { transition-delay: 0.1s !important; }
[data-delay="2"] { transition-delay: 0.2s !important; }
[data-delay="3"] { transition-delay: 0.3s !important; }
[data-delay="4"] { transition-delay: 0.4s !important; }
[data-delay="5"] { transition-delay: 0.5s !important; }
[data-delay="6"] { transition-delay: 0.6s !important; }
[data-delay="7"] { transition-delay: 0.7s !important; }
[data-delay="8"] { transition-delay: 0.8s !important; }

/* ============================================
   RELATED TREATMENTS — Internal Linking
   ============================================ */

.related-treatments {
  padding: var(--space-12) 0;
  border-top: 1px solid rgba(45, 27, 78, 0.06);
  margin-bottom: var(--space-8);
}
.related-treatments__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-8);
}
.related-treatments__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 800px;
  margin-inline: auto;
}
@media (min-width: 640px) {
  .related-treatments__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.related-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-1);
  padding: var(--space-6) var(--space-4);
  background: rgba(248, 245, 250, 0.7);
  border: 1px solid rgba(45, 27, 78, 0.06);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), box-shadow 0.3s, border-color 0.3s;
}
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(45, 27, 78, 0.1);
  border-color: rgba(184, 77, 255, 0.2);
}
.related-card__name {
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-primary);
}
.related-card__sub {
  font-size: var(--text-xs);
  color: rgba(26, 18, 37, 0.5);
  letter-spacing: 0.02em;
}
.related-card__price {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary-bright);
  margin-top: var(--space-1);
}
.related-card__arrow {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-bright), var(--color-primary-hover));
  color: white;
  border-radius: 50%;
  margin-top: var(--space-2);
  transition: transform 0.3s ease;
}
.related-card__arrow svg {
  width: 14px;
  height: 14px;
}
.related-card:hover .related-card__arrow {
  transform: translateX(2px);
}

/* Related treatments animations */
.related-treatments[data-anim="up"] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.related-treatments[data-anim="up"].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive tweaks */
@media (max-width: 767px) {
  .product-hero__img-wrap {
    padding: var(--space-8);
    max-width: 320px;
    margin: 0 auto;
  }
  .product-hero__img { max-width: 200px; }
  .product-hero__info { text-align: center; align-items: center; }
  .product-hero__desc { text-align: center; }
}


/* ===== FDA Category 2 warning callout ===== */
.fda-notice {
  margin: var(--space-6, 1.5rem) 0;
  padding: var(--space-5, 1.25rem) var(--space-6, 1.5rem);
  border-radius: var(--radius-xl, 16px);
  background: #FFF7ED;
  border: 1px solid #F59E0B;
  border-left: 4px solid #B45309;
  color: #78350F;
  font-size: var(--text-sm, 0.95rem);
  line-height: 1.55;
}
.fda-notice__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: var(--text-base, 1rem);
  color: #92400E;
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.fda-notice__title svg {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  color: #B45309;
}
.fda-notice p { margin: 0; }
.fda-notice a {
  color: #78350F;
  text-decoration: underline;
  font-weight: 600;
}

/* ============================================
   MOBILE-FIRST OPTIMIZATION (2026-04-18)
   ============================================ */
@media (max-width: 479px) {
  /* Smaller product image box so hero fits above fold */
  .product-hero__img-wrap {
    padding: var(--space-6);
    max-width: 240px;
    margin: 0 auto;
  }
  .product-hero__img { max-width: 160px; }
  .product-hero {
    gap: var(--space-6);
    padding-bottom: var(--space-8);
  }
  .product-hero__title {
    font-size: clamp(1.875rem, 8vw, 2.4rem);
    line-height: 1.1;
    text-align: center;
  }
  .product-hero__category { font-size: 0.75rem; }
  .product-hero__price { font-size: 1.375rem; }

  /* Back link — cleaner mobile margin */
  .product-back {
    margin-bottom: var(--space-3);
    font-size: 0.875rem;
  }

  /* Quick facts — 2 columns on small phones */
  .product-facts {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding: var(--space-5) 0;
    margin-bottom: var(--space-10);
  }
  .product-fact { padding: var(--space-3) var(--space-2); }

  /* Section titles on product pages */
  .product-section__title {
    font-size: clamp(1.5rem, 6vw, 1.875rem);
  }
  .product-section { margin-bottom: var(--space-10); }
}

@media (max-width: 767px) {
  .product-hero__cta {
    width: 100%;
  }
  .product-hero__cta .btn,
  .product-hero__cta a {
    width: 100%;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
  }
  /* Benefit & FAQ cards tighter on mobile */
  .benefit-card { padding: var(--space-5); }
}