/* ============================================================
   assets/css/product.css — Product Detail Page Styles
   ============================================================ */

/* ── PRODUCT LAYOUT ── */
.product-main { padding: 32px 0 64px; }
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* ── GALLERY ── */
.product-gallery { position: sticky; top: calc(var(--header-h) + 20px); }
.gallery-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #F9F6F2;
  aspect-ratio: 1;
  cursor: zoom-in;
}
.main-gallery-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.gallery-main:hover .main-gallery-img { transform: scale(1.08); }
.gallery-slide { width: 100%; height: 100%; }

/* Video facade inside gallery */
.video-facade { position: relative; width: 100%; height: 100%; cursor: pointer; }
.video-facade img { width: 100%; height: 100%; object-fit: cover; }
.play-btn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(0,0,0,.6); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; transition: background var(--transition);
}
.play-btn:hover { background: var(--clr-primary); }

.image-badges { position: absolute; top: 14px; left: 14px; display: flex; flex-direction: column; gap: 6px; z-index: 2; }
.badge-img { display: inline-block; font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: 3px; color: #fff; }
.badge-img.bestseller { background: var(--clr-primary); }
.badge-img.new-badge  { background: var(--clr-accent); }
.badge-img.discount-badge { background: #DC2626; }
.zoom-hint { position: absolute; bottom: 12px; right: 12px; background: rgba(0,0,0,.45); color: #fff; font-size: .65rem; padding: 4px 10px; border-radius: 20px; pointer-events: none; }

/* Thumbnails */
.gallery-thumbs { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.thumb-btn {
  width: 72px; height: 72px; border-radius: var(--radius);
  overflow: hidden; border: 2px solid transparent;
  transition: border-color var(--transition); background: #F9F6F2;
  flex-shrink: 0;
}
.thumb-btn img { width: 100%; height: 100%; object-fit: cover; }
.thumb-btn.active { border-color: var(--clr-primary); }
.thumb-btn:hover  { border-color: var(--clr-accent); }
.video-thumb { display: flex; align-items: center; justify-content: center; background: #1A1A1A; color: #fff; font-size: 1.2rem; }

/* ── PRODUCT INFO ── */
.product-brand   { font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; color: var(--clr-accent); margin-bottom: 6px; }
.product-name    { font-family: var(--font-display); font-size: clamp(1.6rem,3vw,2.4rem); font-weight: 600; color: var(--clr-primary); margin-bottom: 10px; line-height: 1.2; }
.product-tagline { font-style: italic; color: var(--clr-muted); margin-bottom: 16px; font-size: .95rem; }

.product-rating-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.rating-link { display: flex; align-items: center; gap: 6px; font-size: .85rem; color: var(--clr-muted); }
.rating-link strong { color: var(--clr-dark); }
.rating-link:hover { color: var(--clr-primary); }
.verified-badge  { background: #DCFCE7; color: var(--clr-success); font-size: .65rem; padding: 3px 10px; border-radius: 10px; font-weight: 600; }
.derma-badge     { display: inline-block; background: #EEF2FF; color: #4338CA; font-size: .72rem; padding: 4px 12px; border-radius: 20px; margin-bottom: 20px; font-weight: 500; }

/* ── VARIANT SELECTOR ── */
.variant-selector { margin-bottom: 20px; }
.variant-label { font-size: .82rem; font-weight: 500; margin-bottom: 10px; }
.variant-options { display: flex; gap: 8px; flex-wrap: wrap; }
.variant-btn {
  padding: 8px 18px; border: 1.5px solid var(--clr-border);
  border-radius: var(--radius); font-size: .82rem; font-weight: 500;
  transition: all var(--transition); background: #fff;
}
.variant-btn:hover   { border-color: var(--clr-primary); color: var(--clr-primary); }
.variant-btn.selected { border-color: var(--clr-primary); background: var(--clr-primary); color: #fff; }
.variant-btn[disabled] { opacity: .4; cursor: not-allowed; text-decoration: line-through; }

/* ── PRICING ── */
.product-pricing { margin-bottom: 20px; }
.sale-price      { font-size: 1.8rem; font-weight: 700; color: var(--clr-primary); margin-right: 10px; }
.original-price  { font-size: 1.1rem; color: var(--clr-muted); text-decoration: line-through; margin-right: 8px; }
.discount-label  { background: #FEE2E2; color: #DC2626; font-size: .75rem; font-weight: 700; padding: 3px 10px; border-radius: 3px; }
.tax-note        { font-size: .75rem; color: var(--clr-muted); margin-top: 4px; }

/* ── PINCODE ── */
.pincode-checker { margin-bottom: 20px; padding: 14px; background: #F8F5F0; border-radius: var(--radius); }
.pincode-label   { font-size: .8rem; font-weight: 600; margin-bottom: 8px; }
.pincode-input-row { display: flex; gap: 8px; }
.pincode-input-row input {
  flex: 1; padding: 9px 14px; border: 1px solid var(--clr-border);
  border-radius: var(--radius); font-size: .85rem; outline: none;
  max-width: 180px;
}
.pincode-input-row input:focus { border-color: var(--clr-primary); }
.pincode-result { font-size: .8rem; margin-top: 8px; }
.pincode-result.ok  { color: var(--clr-success); }
.pincode-result.err { color: var(--clr-error); }

/* ── QTY + ATC ── */
.atc-section  { margin-bottom: 20px; }
.qty-selector {
  display: flex; align-items: center; border: 1.5px solid var(--clr-border);
  border-radius: var(--radius); overflow: hidden; width: fit-content; margin-bottom: 14px;
}
.qty-btn { width: 40px; height: 44px; font-size: 1.2rem; font-weight: 300; background: #F9F6F2; transition: background var(--transition); }
.qty-btn:hover { background: var(--clr-border); }
#qtyInput { width: 52px; height: 44px; text-align: center; border: none; border-left: 1.5px solid var(--clr-border); border-right: 1.5px solid var(--clr-border); font-size: .9rem; font-weight: 600; background: #fff; -moz-appearance: textfield; }
#qtyInput::-webkit-inner-spin-button { display: none; }
.atc-buttons  { display: flex; gap: 10px; margin-bottom: 12px; }
.btn-atc      { flex: 2; }
.btn-buynow   { flex: 1; }

.wishlist-btn {
  display: flex; align-items: center; gap: 6px;
  font-size: .8rem; color: var(--clr-muted); transition: color var(--transition);
  padding: 6px 0;
}
.wishlist-btn svg { fill: none; stroke: currentColor; stroke-width: 2; }
.wishlist-btn:hover,.wishlist-btn.active { color: #DC2626; }
.wishlist-btn.active svg { fill: #DC2626; stroke: #DC2626; }

/* ── OFFERS BLOCK ── */
.offers-block { background: #F8F5F0; border-radius: var(--radius); margin-bottom: 20px; overflow: hidden; }
.offers-toggle {
  width: 100%; text-align: left; padding: 12px 16px;
  font-size: .82rem; font-weight: 600; display: flex;
  align-items: center; justify-content: space-between;
  transition: background var(--transition);
}
.offers-toggle:hover { background: #F0EBE3; }
.offers-list { padding: 0 16px 14px; display: flex; flex-direction: column; gap: 8px; }
.offers-list li { font-size: .82rem; color: var(--clr-dark); }

/* ── TRUST ROW ── */
.trust-badges-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; padding: 14px 0; border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); }
.trust-item { display: flex; align-items: center; gap: 6px; font-size: .75rem; font-weight: 500; }
.trust-item span { font-size: 1rem; }

/* ── SHARE ── */
.share-row { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--clr-muted); flex-wrap: wrap; }
.share-btn { padding: 5px 12px; border: 1px solid var(--clr-border); border-radius: 20px; font-size: .75rem; transition: all var(--transition); cursor: pointer; background: #fff; }
.share-btn:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.share-btn.whatsapp:hover { border-color: #25D366; color: #25D366; }

/* ── TABS ── */
.product-tabs-section { border-top: 1px solid var(--clr-border); }
.tabs-nav {
  display: flex; border-bottom: 1px solid var(--clr-border);
  position: sticky; top: var(--header-h); background: var(--clr-light);
  z-index: 100; overflow-x: auto;
}
.tab-btn {
  padding: 16px 24px; font-size: .8rem; font-weight: 500;
  letter-spacing: .06em; text-transform: uppercase;
  border-bottom: 2px solid transparent; white-space: nowrap;
  color: var(--clr-muted); transition: all var(--transition);
}
.tab-btn:hover  { color: var(--clr-primary); }
.tab-btn.active { color: var(--clr-primary); border-bottom-color: var(--clr-primary); }
.tab-panel      { display: none; }
.tab-panel.active { display: block; }
.tab-content    { max-width: 860px; margin: 0 auto; padding: 48px 24px; }

/* ── BENEFITS ── */
.benefits-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.benefit-card { padding: 24px; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--clr-border); }
.benefit-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.benefit-card h3 { font-size: .95rem; font-weight: 600; margin-bottom: 6px; color: var(--clr-primary); }
.benefit-card p  { font-size: .83rem; color: var(--clr-muted); line-height: 1.6; }

/* ── CLINICAL RESULTS ── */
.clinical-stats { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 16px; }
.clinical-card  { flex: 1; min-width: 180px; text-align: center; padding: 28px 20px; background: var(--clr-primary); color: #fff; border-radius: var(--radius-lg); }
.clinical-pct   { margin-bottom: 10px; }
.pct-num        { font-family: var(--font-display); font-size: 3rem; font-weight: 600; }
.clinical-card p { font-size: .83rem; opacity: .85; line-height: 1.5; }
.clinical-disclaimer { font-size: .72rem; color: var(--clr-muted); margin-top: 12px; }

/* ── HOW TO USE ── */
.how-to-use-steps { display: flex; flex-direction: column; gap: 20px; margin-bottom: 24px; }
.step-item { display: flex; gap: 20px; align-items: flex-start; }
.step-number { width: 40px; height: 40px; border-radius: 50%; background: var(--clr-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; font-size: .9rem; }
.step-text { padding-top: 8px; font-size: .9rem; line-height: 1.7; }
.pro-tip { background: #FFF9EB; border-left: 3px solid var(--clr-accent); padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; font-size: .85rem; }

/* ── INGREDIENTS ── */
.ingredients-focus-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-bottom: 40px; }
.ingredient-card { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--clr-border); overflow: hidden; }
.ingredient-img  { aspect-ratio: 1; overflow: hidden; }
.ingredient-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.ingredient-card:hover .ingredient-img img { transform: scale(1.06); }
.ingredient-info { padding: 16px; }
.ingredient-info h3 { font-size: .95rem; font-weight: 600; margin-bottom: 4px; color: var(--clr-primary); }
.ingredient-origin { font-size: .75rem; color: var(--clr-accent); margin-bottom: 6px; }
.ingredient-info p { font-size: .82rem; color: var(--clr-muted); line-height: 1.6; }

.full-ingredients { }
.ingredients-search-wrap { margin-bottom: 14px; }
.ingredients-search-wrap input { width: 100%; max-width: 360px; padding: 9px 14px; border: 1px solid var(--clr-border); border-radius: var(--radius); font-size: .85rem; outline: none; }
.ingredients-search-wrap input:focus { border-color: var(--clr-primary); }
.inci-list { font-size: .82rem; color: var(--clr-muted); line-height: 1.9; }
.inci-list .highlight { background: #FEF3C7; border-radius: 2px; padding: 0 2px; }

.never-use-box  { margin-top: 36px; padding: 24px; background: #FFF9EB; border-radius: var(--radius-lg); border: 1px solid #FDE68A; }
.never-use-box h3 { font-size: .9rem; font-weight: 700; margin-bottom: 14px; color: var(--clr-dark); }
.never-use-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.never-use-grid span { background: #fff; border: 1px solid #FDE68A; padding: 5px 14px; border-radius: 20px; font-size: .78rem; font-weight: 500; }

/* ── INFO TABLE ── */
.info-table { width: 100%; border-collapse: collapse; margin-bottom: 28px; }
.info-table th,.info-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--clr-border); font-size: .88rem; }
.info-table th { width: 35%; color: var(--clr-muted); font-weight: 500; background: #F9F6F2; }
.info-table td { color: var(--clr-dark); }
.info-table tr:last-child th,.info-table tr:last-child td { border-bottom: none; }

.certifications { display: flex; flex-wrap: wrap; gap: 10px; }
.cert-badge { background: var(--clr-light); border: 1px solid var(--clr-border); padding: 6px 14px; border-radius: 20px; font-size: .78rem; font-weight: 500; }

/* ── VIDEO SECTION ── */
.video-section { background: var(--clr-light); }
.video-wrapper { border-radius: var(--radius-lg); overflow: hidden; max-width: 860px; margin: 0 auto; }
.video-facade  { position: relative; cursor: pointer; }
.video-facade img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.play-btn-large { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); background: none; transition: transform var(--transition); }
.play-btn-large:hover { transform: translate(-50%,-50%) scale(1.1); }
.video-facade iframe { width: 100%; aspect-ratio: 16/9; border: none; }

/* ── FAQ ── */
.faq-section { background: var(--clr-light); }
.faq-list { display: flex; flex-direction: column; gap: 2px; max-width: 780px; margin: 0 auto 28px; }
.faq-item { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--clr-border); }
.faq-question {
  width: 100%; text-align: left; padding: 18px 20px;
  font-size: .9rem; font-weight: 500; display: flex;
  align-items: center; justify-content: space-between; gap: 12px;
  transition: background var(--transition);
}
.faq-question:hover { background: #F9F6F2; }
.faq-icon { font-size: 1.2rem; font-weight: 300; flex-shrink: 0; transition: transform var(--transition); }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 20px 18px; font-size: .87rem; color: var(--clr-muted); line-height: 1.7; }
.faq-cta { text-align: center; font-size: .85rem; color: var(--clr-muted); }
.faq-cta a { color: var(--clr-primary); font-weight: 600; }

/* ── REVIEWS ── */
.reviews-section { background: #fff; }
.rating-overview { display: grid; grid-template-columns: auto 1fr; gap: 48px; align-items: start; margin-bottom: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--clr-border); }
.rating-big { text-align: center; }
.big-number { display: block; font-family: var(--font-display); font-size: 4rem; font-weight: 600; color: var(--clr-primary); line-height: 1; margin-bottom: 8px; }
.rating-big p { font-size: .82rem; color: var(--clr-muted); margin-top: 6px; }
.rating-bars  { display: flex; flex-direction: column; gap: 8px; }
.rating-bar-row { display: flex; align-items: center; gap: 10px; }
.bar-label  { font-size: .82rem; color: var(--clr-primary); width: 22px; text-align: right; flex-shrink: 0; }
.bar-track  { flex: 1; height: 8px; background: var(--clr-border); border-radius: 4px; overflow: hidden; }
.bar-fill   { height: 100%; background: var(--clr-accent); border-radius: 4px; transition: width .6s ease; }
.bar-count  { font-size: .78rem; color: var(--clr-muted); width: 30px; }

.review-filters { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 20px; }
.filter-btn { padding: 5px 14px; border: 1px solid var(--clr-border); border-radius: 20px; font-size: .78rem; transition: all var(--transition); background: #fff; }
.filter-btn:hover,.filter-btn.active { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

.reviews-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.review-card { padding: 24px; border: 1px solid var(--clr-border); border-radius: var(--radius-lg); background: #fff; }
.review-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.review-meta { text-align: right; font-size: .8rem; color: var(--clr-muted); }
.review-meta strong { display: block; color: var(--clr-dark); }
.review-title { font-size: .95rem; font-weight: 600; margin: 4px 0; }
.verified-purchase-badge { background: #DCFCE7; color: var(--clr-success); font-size: .7rem; padding: 2px 10px; border-radius: 10px; font-weight: 600; display: inline-block; margin-bottom: 10px; }
.review-body { font-size: .87rem; color: var(--clr-muted); line-height: 1.7; margin-bottom: 12px; }
.review-helpful { display: flex; align-items: center; gap: 8px; font-size: .78rem; color: var(--clr-muted); }
.helpful-btn { padding: 3px 12px; border: 1px solid var(--clr-border); border-radius: 20px; font-size: .75rem; transition: all var(--transition); }
.helpful-btn:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.no-reviews { text-align: center; padding: 40px; color: var(--clr-muted); }

/* ── REVIEW FORM ── */
.review-form-wrap { background: #F9F6F2; border-radius: var(--radius-lg); padding: 36px; margin-top: 40px; }
.review-form-wrap h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; margin-bottom: 24px; color: var(--clr-primary); }
.review-form { display: flex; flex-direction: column; gap: 18px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .82rem; font-weight: 500; }
.form-group input,.form-group textarea,.form-group select {
  padding: 10px 14px; border: 1px solid var(--clr-border);
  border-radius: var(--radius); font-size: .88rem; outline: none;
  background: #fff; transition: border-color var(--transition);
}
.form-group input:focus,.form-group textarea:focus { border-color: var(--clr-primary); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* Star picker */
.star-picker p { font-size: .82rem; font-weight: 500; margin-bottom: 8px; }
.star-picker-stars { display: flex; flex-direction: row-reverse; gap: 4px; width: fit-content; }
.star-picker-stars label { cursor: pointer; }
.star-picker-stars input { display: none; }
.star-pick { font-size: 1.8rem; color: #D1D5DB; transition: color var(--transition); }
.star-picker-stars label:hover .star-pick,
.star-picker-stars label:hover ~ label .star-pick,
.star-picker-stars input:checked ~ label .star-pick,
.star-picker-stars input:checked + label .star-pick { color: #F59E0B; }
#reviewFormMsg.success { color: var(--clr-success); font-size: .88rem; }
#reviewFormMsg.error   { color: var(--clr-error); font-size: .88rem; }
.form-note { font-size: .75rem; color: var(--clr-muted); }

/* ── RELATED / RECENTLY VIEWED ── */
.related-products { background: var(--clr-light); }
.recently-viewed  { background: #fff; }
.recently-viewed-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 16px; }

/* ══════════════════════════════════════════
   PRODUCT PAGE RESPONSIVE
══════════════════════════════════════════ */
@media(max-width:900px){
  .product-layout { grid-template-columns:1fr; gap:32px; }
  .product-gallery { position:static; }
  .benefits-grid { grid-template-columns:1fr 1fr; }
  .ingredients-focus-grid { grid-template-columns:1fr 1fr; }
  .rating-overview { grid-template-columns:1fr; }
  .rating-big { text-align:left; }
  .form-row-2 { grid-template-columns:1fr; }
}
@media(max-width:600px){
  .benefits-grid { grid-template-columns:1fr; }
  .clinical-stats { flex-direction:column; }
  .ingredients-focus-grid { grid-template-columns:1fr; }
  .atc-buttons { flex-direction:column; }
  .gallery-thumbs { gap:6px; }
  .thumb-btn { width:60px; height:60px; }
  .recently-viewed-grid { grid-template-columns:repeat(3,1fr); }
  .tabs-nav { gap:0; }
  .tab-btn { padding:14px 14px; font-size:.72rem; }
}