PRODUCT DETAIL SECTION — PREMIUM REDESIGN 2026
   ============================================================ */

/* ---- Back Button ---- */
.detail-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 1rem;
}
.detail-back-btn:hover {
  color: var(--purple-mid);
  border-color: var(--purple-mid);
  transform: translateX(-4px);
}
.detail-back-btn svg {
  transition: transform var(--transition);
}
.detail-back-btn:hover svg {
  transform: translateX(-2px);
}

/* ---- Breadcrumbs ---- */
.detail-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 1rem;
}
.detail-breadcrumbs a {
  color: var(--text2);
  transition: color var(--transition);
}
.detail-breadcrumbs a:hover {
  color: var(--purple-mid);
}
.bc-chevron {
  color: var(--text3);
}

/* ---- Grid Layout ---- */
#product-detail-section {
  padding: 6rem 0 7rem;
  background: radial-gradient(circle at top right, rgba(139,38,255,0.04), transparent 40%);
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 0.5rem;
}

/* ---- Visual / Gallery ---- */
.detail-visual {
  position: sticky;
  top: 100px;
  align-self: start;
}
.detail-main-image-wrap {
  position: relative;
  background: linear-gradient(165deg, var(--surface) 0%, var(--bg3) 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  height: min(75vw, 420px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: crosshair;
  transition: all var(--transition);
}
.detail-main-image-wrap.is-creatine {
  height: min(85vw, 480px);
}
.detail-main-image-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(139,38,255,0.12), transparent 70%);
  pointer-events: none;
}
.detail-main-image {
  position: relative;
  z-index: 2;
  max-height: 80%;
  max-width: 75%;
  object-fit: contain;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  user-select: none;
  -webkit-user-drag: none;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}
.detail-main-image-wrap:hover .detail-main-image {
  transform: scale(1.08);
}
.detail-visual-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(139,38,255,0.3), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 1;
}

/* Focus styles for image nav */
.detail-img-nav:focus:not(:focus-visible) {
  outline: none;
}

/* Zoom hint */
.detail-zoom-hint {
  position: absolute;
  bottom: 16px;
  right: 16px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 10px;
  color: var(--text3);
  opacity: 0.5;
  transition: opacity var(--transition);
}
.detail-main-image-wrap:hover .detail-zoom-hint {
  opacity: 0;
}

/* Zoom lens (desktop) */
.detail-zoom-lens {
  display: none;
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid var(--purple);
  border-radius: 50%;
  background: rgba(139,38,255,0.08);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 3;
  box-shadow: 0 0 20px rgba(139,38,255,0.3);
}

/* Image badge */
.detail-img-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 5;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 8px;
  backdrop-filter: blur(8px);
}
.detail-img-badge.b-best { background: var(--gold); color: #1a1200; }
.detail-img-badge.b-top { background: var(--accent); color: var(--bg); }
.detail-img-badge.b-new { background: var(--red); color: #fff; }
.detail-img-badge.b-sale { background: #FF6B35; color: #fff; }

/* Image nav arrows */
.detail-img-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition);
  backdrop-filter: blur(4px);
}
.detail-img-nav:hover {
  background: var(--purple);
  border-color: var(--purple);
  transform: translateY(-50%) scale(1.1);
}
.detail-img-nav.prev { left: 12px; }
.detail-img-nav.next { right: 12px; }

/* Mobile dots */
.detail-mobile-dots {
  display: flex !important;
  justify-content: center;
  gap: 8px;
  margin-top: -24px;
  position: relative;
  z-index: 6;
  padding-bottom: 16px;
}
.detail-mobile-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  transition: all 0.3s ease;
  cursor: pointer;
}
.detail-mobile-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--purple-mid);
}

/* Thumbnails */
.detail-thumbnails {
  display: flex;
  gap: 10px;
  padding: 0 0.5rem 8px;
  margin-top: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.detail-thumbnails::-webkit-scrollbar { height: 3px; }
.detail-thumbnails::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 2px; }
.detail-thumb {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  scroll-snap-align: start;
}
.detail-thumb:hover {
  border-color: var(--purple-mid);
  transform: translateY(-2px);
}
.detail-thumb.active {
  border-color: var(--purple);
  box-shadow: 0 0 20px var(--purple-glow);
}
.detail-thumb img {
  max-width: 65%;
  max-height: 65%;
  object-fit: contain;
  transition: transform 0.25s ease;
}
.detail-thumb:hover img {
  transform: scale(1.1);
}

/* ---- Product Info Column ---- */
.detail-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
  width: 100%;
  max-width: 100%;
}

/* Brand */
.detail-brand-row {
  margin-bottom: 0;
}
.detail-brand {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--text3);
  text-transform: uppercase;
}
.detail-brand em {
  font-style: normal;
  color: var(--purple-mid);
}

/* Rating Row */
.detail-rating-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.detail-rating {
  display: flex;
  align-items: center;
  gap: 8px;
}
.detail-rating .stars {
  color: var(--gold);
  font-size: 15px;
  letter-spacing: 2px;
}
.rating-text {
  font-size: 13px;
  color: var(--text2);
  font-weight: 500;
}
.rating-count {
  color: var(--text3);
  font-size: 12px;
}
.detail-certs-inline {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.detail-cert {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: var(--text3);
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 3px 8px;
  white-space: nowrap;
}
.detail-certs-mobile {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Product Name */
#detailName {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 1px;
  line-height: 1.05;
  color: var(--text);
  margin: 0;
}
#detailTagline {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text3);
  margin: 0 0 0.5rem;
}

/* Badges Row */
.detail-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0.25rem 0;
}
.detail-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1px solid;
}
.badge-bestseller {
  background: rgba(255,215,0,0.12);
  border-color: rgba(255,215,0,0.3);
  color: var(--gold);
}
.badge-lab {
  background: rgba(139,38,255,0.1);
  border-color: rgba(139,38,255,0.25);
  color: var(--purple-mid);
}
.badge-creapure {
  background: rgba(0,255,136,0.08);
  border-color: rgba(0,255,136,0.2);
  color: var(--green);
}
.badge-gmp {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
  color: var(--text2);
}
.badge-vegan {
  background: rgba(0,200,100,0.08);
  border-color: rgba(0,200,100,0.2);
  color: #00c864;
}
.badge-authentic {
  background: rgba(79,142,255,0.08);
  border-color: rgba(79,142,255,0.2);
  color: #4f8eff;
}

/* Price Box */
.detail-price-box {
  background: linear-gradient(145deg, var(--surface2) 0%, var(--bg3) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
}
.detail-price-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.detail-price-now {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(28px, 5vw, 48px);
  color: var(--text);
  letter-spacing: 1px;
  line-height: 1;
}
.detail-price-was {
  font-size: 14px;
  color: var(--text3);
  text-decoration: line-through;
}
.detail-save-badge {
  background: linear-gradient(135deg, #FF6B35, #FF3366);
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 1px;
  padding: 3px 10px;
  border-radius: 6px;
  white-space: nowrap;
}
.detail-price-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text3);
  margin-top: 6px;
  flex-wrap: wrap;
}
.tax-inclusive { color: var(--text2); }
.dot-sep { color: var(--text3); opacity: 0.4; }
.free-ship { color: var(--green); }

/* Savings display */
.detail-savings {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 6px 12px;
  background: rgba(0,255,136,0.06);
  border: 1px solid rgba(0,255,136,0.15);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text2);
}
.detail-savings svg {
  stroke: var(--green);
  flex-shrink: 0;
}
.detail-savings strong {
  color: var(--green);
  font-family: 'Rajdhani', sans-serif;
}

/* Stock Status */
.detail-stock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
}
.stock-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 1px;
}
.stock-indicator.in-stock { color: var(--green); }
.stock-indicator.out-of-stock { color: var(--red); }
.stock-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: stockPulse 1.5s ease-in-out infinite;
}
.in-stock .stock-pulse { box-shadow: 0 0 8px var(--green); }
.out-of-stock .stock-pulse { box-shadow: 0 0 8px var(--red); }
@keyframes stockPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.stock-count {
  font-size: 12px;
  color: var(--text3);
}

/* Config / Variant rows */
.config-row.variant-row {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border2);
}
.config-label-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  min-width: 0;
}
.config-label-row svg {
  color: var(--text3);
  flex-shrink: 0;
}
.config-label {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text2);
}
.config-selected {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  color: var(--purple-mid);
  margin-left: auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 50%;
}
.chip-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chip-btn {
  padding: 10px 18px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text2);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all var(--transition);
}
.chip-btn:hover {
  border-color: var(--purple-mid);
  color: var(--text);
}
.chip-btn.active {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
  box-shadow: 0 4px 16px rgba(139,38,255,0.3);
}

/* Purchase Section (Desktop) */
.purchase-section {
  padding: 1rem 0;
}
.qty-label {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 8px;
}
.purchase-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.qty-selector {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.qty-selector .qty-btn {
  width: 38px;
  height: 44px;
  border-radius: 0;
  background: transparent;
  border: none;
  color: var(--text2);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.qty-selector .qty-btn:hover {
  background: rgba(139,38,255,0.1);
  color: var(--purple-mid);
}
.qty-selector .qty-val {
  min-width: 32px;
  text-align: center;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}

/* Add to Cart + Buy Now buttons */
.btn-add-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
  color: #fff;
  border: none;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 6px 24px rgba(139,38,255,0.3);
  white-space: nowrap;
}
.btn-add-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(139,38,255,0.45);
}
.btn-add-main:active {
  transform: translateY(0);
}
.btn-buy-now {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: 10px;
  background: linear-gradient(135deg, #FF6B35 0%, #FF3366 100%);
  color: #fff;
  border: none;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 6px 24px rgba(255,51,102,0.3);
  white-space: nowrap;
}
.btn-buy-now:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(255,51,102,0.45);
}
.btn-buy-now:active {
  transform: translateY(0);
}

/* Delivery Info */
.detail-delivery {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0.5rem 0;
}
.detail-delivery-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 10px 14px;
  flex: 1;
  min-width: 140px;
  transition: all var(--transition);
}
.detail-delivery-item:hover {
  border-color: var(--purple-mid);
  background: rgba(139,38,255,0.04);
}
.dd-icon {
  flex-shrink: 0;
  color: var(--purple-mid);
}
.dd-text {
  display: flex;
  flex-direction: column;
}
.dd-title {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  color: var(--text);
}
.dd-sub {
  font-size: 11px;
  color: var(--text3);
}

/* Trust Badges */
.detail-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0.5rem 0;
}
.detail-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 8px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  font-size: 11px;
  color: var(--text3);
  letter-spacing: 0.5px;
  transition: all var(--transition);
}
.detail-trust-badge:hover {
  border-color: var(--purple-mid);
  color: var(--text2);
}
.dt-icon {
  flex-shrink: 0;
}

/* Detail Sections (Highlights, Benefits, Ingredients, Nutrition, Usage) */
.detail-section {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border2);
}
.detail-section:last-of-type {
  border-bottom: none;
}
.detail-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 12px;
}
.detail-section-title svg {
  color: var(--purple-mid);
  flex-shrink: 0;
}

/* Highlights List */
.detail-highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.detail-highlights-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.5;
}
.detail-highlights-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  background: var(--purple-mid);
  border-radius: 2px;
  opacity: 0.5;
}

/* Benefits Grid */
.detail-benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.benefit-card-mini {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 14px;
  transition: all var(--transition);
}
.benefit-card-mini:hover {
  border-color: var(--purple-mid);
  transform: translateY(-2px);
}
.benefit-mini-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--purple), var(--purple-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}
.benefit-mini-icon svg {
  stroke: #fff;
}
.benefit-mini-title {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}
.benefit-mini-desc {
  font-size: 12px;
  color: var(--text3);
  line-height: 1.4;
}

/* Legacy benefits (backward compatibility) */
.detail-benefits {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 12px;
}

#detailBenefitsContent {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.detail-benefit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.4;
}
.detail-benefit-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0,255,136,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.detail-benefit-check svg {
  width: 12px;
  height: 12px;
  stroke: var(--green);
  fill: none;
}
.benefit-text {
  color: var(--text3);
}

/* Ingredients */
.ingredients-text {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

/* Nutrition Facts */
.nutrition-facts {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.nf-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--surface3);
  border-bottom: 2px solid var(--border);
}
.nf-serving,
.nf-servings {
  font-size: 12px;
  color: var(--text2);
  font-weight: 500;
}
.nf-table {
  width: 100%;
  border-collapse: collapse;
}
.nf-table tr {
  border-bottom: 1px solid var(--border2);
}
.nf-table tr:last-child {
  border-bottom: none;
}
.nf-table td {
  padding: 10px 16px;
  font-size: 13px;
}
.nf-label {
  color: var(--text2);
}
.nf-value {
  text-align: right;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  color: var(--text);
}

/* Usage Instructions */
.usage-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.usage-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.5;
}
.usage-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--purple-dark));
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

/* Description */
#detailDescription {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  padding: 0.5rem 0;
}

/* Tabs */
.detail-tabs {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.tab-header {
  display: flex;
  gap: clamp(0.75rem, 2vw, 2rem);
  border-bottom: 1px solid var(--border2);
  margin-bottom: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  min-width: 0;
}
.tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 4px;
  background: none;
  white-space: nowrap;
  flex-shrink: 0;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text3);
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn:hover {
  color: var(--text2);
}
.tab-btn.active {
  color: var(--purple-mid);
  border-bottom-color: var(--purple-mid);
}
.tab-btn svg {
  opacity: 0.5;
}
.tab-btn.active svg {
  opacity: 1;
}
.tab-content {
  display: none;
  animation: fadeIn 0.4s ease;
}
.tab-content.active {
  display: block;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.tab-inner {
  padding: 0.5rem 0;
}
.detail-desc-text {
  color: var(--text2);
  line-height: 1.8;
  font-size: 14px;
}

/* Specs Grid */
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.spec-item {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 12px 14px;
}
.spec-label {
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.spec-val {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
}

/* ---- FAQ Section ---- */
.detail-faq {
  margin: 3rem 0;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}
.detail-faq-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(24px, 3.5vw, 32px);
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 4px;
}
.detail-faq-sub {
  font-size: 13px;
  color: var(--text3);
  margin-bottom: 1.5rem;
}
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.open {
  border-color: var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  cursor: pointer;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  letter-spacing: 0.5px;
  transition: color var(--transition);
  user-select: none;
}
.faq-question:hover {
  color: var(--purple-mid);
}
.faq-chevron {
  transition: transform 0.3s ease;
  color: var(--text3);
  flex-shrink: 0;
}
.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--purple-mid);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
}
.faq-answer-text {
  padding: 0 18px 16px;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.6;
}

/* ---- Related Products ---- */
.detail-related {
  margin: 2rem 0 3rem;
}
.detail-related-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}
.detail-related-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: 1px;
  color: var(--text);
  flex: 1;
}
.detail-related-title svg {
  color: var(--purple-mid);
}
.detail-related-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.detail-related-nav-btn:hover {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
}
.detail-related-grid {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
}
.detail-related-grid::-webkit-scrollbar { height: 3px; }
.detail-related-grid::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 2px; }
.related-card {
  flex-shrink: 0;
  width: 180px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  scroll-snap-align: start;
}
.related-card:hover {
  border-color: var(--purple-mid);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}
.related-thumb {
  height: 140px;
  background: linear-gradient(145deg, var(--bg3), var(--surface));
  display: flex;
  align-items: center;
  justify-content: center;
}
.related-thumb img {
  max-width: 70%;
  max-height: 70%;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(0,0,0,0.4));
  transition: transform var(--transition);
}
.related-card:hover .related-thumb img {
  transform: scale(1.08);
}
.related-emoji {
  font-size: 40px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}
.related-body {
  padding: 12px;
}
.related-name {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.related-price {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 18px;
  color: var(--purple-mid);
}

/* ---- Mobile Sticky Bar ---- */
.detail-sticky-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1400;
  background: linear-gradient(180deg, rgba(3,3,8,0.94), rgba(3,3,8,0.99));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(139,38,255,0.15);
  padding: 8px clamp(0.75rem, 3vw, 1rem);
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -8px 40px rgba(0,0,0,0.6);
  display: none;
  animation: stickyBarIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes stickyBarIn {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.sticky-inner {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sticky-info {
  display: flex;
  flex-direction: column;
  min-width: fit-content;
}
.sticky-price {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px;
  color: var(--text);
  line-height: 1;
  letter-spacing: 0.5px;
}
.sticky-save {
  font-size: 10px;
  color: var(--green);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
}
.sticky-qty {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  min-height: 44px;
}
.sticky-qty .qty-btn {
  min-width: 44px;
  min-height: 44px;
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent;
  border: none;
  color: var(--text2);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.sticky-qty .qty-btn:hover,
.sticky-qty .qty-btn:active {
  background: rgba(139,38,255,0.12);
  color: var(--purple-mid);
}
.sticky-qty .qty-val {
  width: 28px;
  text-align: center;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
}
.sticky-actions {
  display: flex;
  gap: 6px;
  flex: 1;
}
.sticky-btn-cart {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  background: transparent;
  border: 1.5px solid var(--purple);
  border-radius: 10px;
  color: var(--purple-mid);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all var(--transition);
}
.sticky-btn-cart:hover,
.sticky-btn-cart:active {
  background: rgba(139,38,255,0.1);
}
.sticky-btn-cart svg {
  stroke: currentColor;
}
.sticky-btn-buy {
  flex: 1.3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(139,38,255,0.3);
}
.sticky-btn-buy:hover,
.sticky-btn-buy:active {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(139,38,255,0.4);
}

/* ============================================================
   DESKTOP OVERRIDES (>= 1024px)
   ============================================================ */
@media (min-width: 1024px) {
  .detail-sticky-bar {
    display: none;
  }
  .detail-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
  .detail-visual {
    position: sticky;
    top: 100px;
  }
  .detail-main-image-wrap {
    height: 580px;
    border-radius: 24px;
  }
  .detail-main-image-wrap.is-creatine {
    height: 620px;
    border-radius: 24px;
  }
  .detail-main-image {
    max-width: 80%;
    max-height: 85%;
  }
  .detail-main-image-wrap:hover .detail-main-image {
    transform: scale(1.12);
  }
  .detail-main-image-wrap.is-creatine .detail-main-image {
    width: 100%;
    height: 100%;
  }
  .detail-zoom-lens {
    display: none;
  }
  #detailStickyBar {
    display: none !important;
  }
  .detail-info .qty-selector {
    display: flex;
  }
  .purchase-section {
    display: block;
  }
  .detail-thumb {
    width: 76px;
    height: 76px;
  }
}

@media (min-width: 1280px) {
  .detail-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem;
  }
  .detail-main-image-wrap {
    height: 640px;
  }
  .detail-main-image-wrap.is-creatine {
    height: 680px;
  }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */
@media (max-width: 768px) {
  .detail-grid {
    gap: 1.5rem;
  }
  .detail-visual {
    position: relative !important;
    top: 0 !important;
    margin: 0 calc(-1 * clamp(0.5rem, 4vw, 2rem)) !important;
    width: auto !important;
  }
  .detail-main-image-wrap {
    height: min(75vw, 420px) !important;
    border-radius: 0 !important;
    border-left: none !important;
    border-right: none !important;
  }
  .detail-main-image-wrap.is-creatine {
    height: min(85vw, 480px) !important;
  }
  .detail-main-image {
    max-width: 75% !important;
    max-height: 80% !important;
  }
  .detail-main-image-wrap:hover .detail-main-image {
    transform: none !important;
  }
  .detail-info {
    padding: 0 !important;
  }
  #detailName {
    font-size: clamp(24px, 7vw, 32px) !important;
  }
  .detail-price-now {
    font-size: clamp(26px, 6vw, 32px) !important;
  }
  .detail-benefits-grid {
    grid-template-columns: 1fr;
  }
  .specs-grid {
    grid-template-columns: 1fr;
  }
  /* Show sticky bar on mobile, hide desktop purchase row */
  .purchase-section .purchase-row {
    display: none;
  }
  .purchase-section {
    display: none;
  }
  #detailStickyBar {
    display: block;
  }
  .detail-related-grid {
    gap: 10px;
  }
  .related-card {
    width: 150px;
  }
  .related-thumb {
    height: 120px;
  }
}

@media (max-width: 480px) {
  #product-detail-section {
    padding: 5rem 0 6rem;
  }
  .detail-main-image-wrap {
    height: min(85vw, 360px) !important;
  }
  .detail-main-image-wrap.is-creatine {
    height: min(92vw, 400px) !important;
  }
  .detail-thumb {
    width: 48px;
    height: 48px;
  }
  .detail-price-box {
    padding: 0.85rem 1rem;
  }
  .detail-delivery-item {
    min-width: 100%;
  }
  .detail-related-grid {
    gap: 8px;
  }
  .related-card {
    width: 130px;
  }
  .related-thumb {
    height: 100px;
  }
  .related-name {
    font-size: 12px;
  }
  .related-price {
    font-size: 16px;
  }
  .sticky-price {
    font-size: 17px;
  }
  .sticky-btn-cart {
    font-size: 10px;
    height: 44px;
  }
  .sticky-btn-buy {
    font-size: 11px;
    height: 44px;
  }
}

@media (max-width: 375px) {
  .detail-main-image-wrap {
    height: min(90vw, 300px) !important;
  }
  .detail-price-now {
    font-size: 24px !important;
  }
  .detail-price-box {
    padding: 0.75rem 0.85rem;
    border-radius: 12px;
  }
  .detail-thumb {
    width: 40px;
    height: 40px;
  }
  .sticky-price {
    font-size: 15px;
  }
  .sticky-qty .qty-btn {
    font-size: 13px;
  }
  .sticky-qty .qty-val {
    width: 24px;
    font-size: 13px;
  }
  .sticky-btn-cart {
    font-size: 9px;
    height: 44px;
    letter-spacing: 1px;
  }
  .sticky-btn-buy {
    font-size: 10px;
    height: 44px;
  }
}

@media (max-width: 320px) {
  #product-detail-section {
    padding: 4.5rem 0 5.5rem;
  }
  .detail-main-image-wrap {
    height: min(95vw, 260px) !important;
  }
  .detail-price-now {
    font-size: 22px !important;
  }
  .detail-price-was {
    font-size: 12px;
  }
  .detail-price-box {
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
  }
  .detail-thumb {
    width: 36px;
    height: 36px;
  }
  .sticky-price {
    font-size: 14px;
  }
  .sticky-qty .qty-btn {
    font-size: 12px;
  }
  .sticky-qty .qty-val {
    width: 20px;
    font-size: 12px;
  }
  .sticky-btn-cart {
    font-size: 8px;
    height: 44px;
    letter-spacing: 0.5px;
  }
  .sticky-btn-buy {
    font-size: 9px;
    height: 44px;
  }
  .detail-benefits-grid {
    grid-template-columns: 1fr;
  }
  .related-card {
    width: 120px;
  }
  .related-thumb {
    height: 90px;
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  #navbar,
  .detail-sticky-bar,
  .cart-sidebar,
  .cart-overlay,
  .modal-overlay,
  .modal-container {
    display: none !important;
  }
  #product-detail-section {
    padding: 0;
  }
  .detail-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

    /* Loading Spinner */
    .spinner {
      width: 32px;
      height: 32px;
      border: 3px solid rgba(255,255,255,0.08);
      border-top-color: #7c3aed;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
      margin: 0 auto 12px;
    }
    @keyframes spin {
      to { transform: rotate(360deg); }
    }
    .order-loading {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 2rem 0;
    }