/**
 * Hnextmove Page-Specific Styles
 * Hero, Joint Selector, Product Detail, Joint Lab, Founder Story, Checkout
 */

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  padding-top: var(--space-16);
  padding-bottom: var(--space-24);
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 75%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: var(--space-12);
  position: relative;
  z-index: 2;
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero__title .text-gradient {
  background: linear-gradient(135deg, var(--color-volt) 20%, #00F076 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 580px;
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
}

@media (max-width: 640px) {
  .hero__metrics {
    gap: var(--space-3);
    padding-top: var(--space-5);
  }
  .metric-num {
    font-size: var(--fs-xl);
  }
  .metric-label {
    font-size: 10.5px;
    letter-spacing: 0.02em;
  }
  .hero__img {
    height: 320px !important;
  }
  .hero__title {
    font-size: clamp(22px, 6vw, 28px) !important;
    line-height: 1.2 !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
    hyphens: none !important;
  }
  .hero__subtitle {
    font-size: 14px !important;
    line-height: 1.5 !important;
    word-break: normal !important;
    hyphens: none !important;
  }
}

@media (max-width: 480px) {
  .hero__metrics {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .hero__metrics > div:last-child {
    grid-column: span 2;
  }
}

.metric-num {
  font-size: var(--fs-2xl);
  font-weight: 900;
  color: var(--color-volt);
  line-height: 1;
  margin-bottom: 4px;
}

.metric-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Hero Media Canvas */
.hero__media {
  position: relative;
}

.hero__visual-card {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--bg-surface-card);
  border: 1px solid var(--border-medium);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), var(--shadow-volt-glow);
}

.hero__img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  filter: brightness(0.9) contrast(1.1);
}

.hero__floating-badge {
  position: absolute;
  padding: 12px 18px;
  background: rgba(16, 22, 34, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: calc(100% - 32px);
}

.hero__floating-badge.badge-top {
  top: 20px;
  left: 16px;
}

.hero__floating-badge.badge-bottom {
  bottom: 20px;
  right: 16px;
  border-color: var(--border-tangerine);
}

@media (max-width: 768px) {
  .hero__floating-badge.badge-top,
  .hero__floating-badge.badge-bottom {
    position: static;
    left: auto;
    right: auto;
    margin: 10px 12px;
    width: auto;
    box-sizing: border-box;
  }
}

/* ==========================================================================
   Interactive Anatomical Joint Selector
   ========================================================================== */
.joint-selector-section {
  background: linear-gradient(180deg, var(--bg-deep) 0%, #0C121A 100%);
  border-block: 1px solid var(--border-subtle);
  position: relative;
}

.joint-selector-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

/* Medical HUD Biomechanical Card */
.joint-telemetry-card {
  position: relative;
  background: #070B10;
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-xl);
  overflow: hidden !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), var(--shadow-volt-glow);
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  box-sizing: border-box !important;
}

.joint-hud-header {
  background: rgba(16, 22, 34, 0.9);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-medium);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}

.hud-status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hud-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-volt);
  box-shadow: 0 0 10px var(--color-volt);
  animation: pulseVolt 1.5s infinite;
}

.hud-mono-text {
  color: var(--color-volt);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.hud-badge-code {
  color: var(--text-muted);
  font-size: 10px;
}

.joint-canvas-wrapper {
  position: relative;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  background: #030609;
  overflow: hidden !important;
  box-sizing: border-box !important;
}

.joint-telemetry-img {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  display: block;
  filter: contrast(1.08) brightness(1.02);
}

/* Interactive Precision Pinpoint HUD Nodes */
.joint-hud-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 20;
  background: transparent;
  border: none;
  padding: 0;
}

.hud-center-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-volt);
  box-shadow: 0 0 12px var(--color-volt);
  transition: all var(--transition-fast);
  z-index: 2;
}

.hud-ring {
  position: absolute;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--color-volt);
  animation: radarRing 2s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  pointer-events: none;
}

@keyframes radarRing {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hud-label {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(9, 13, 20, 0.92);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-volt);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 800;
  color: #FFF;
  white-space: nowrap;
  pointer-events: none;
  font-family: var(--font-mono);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  opacity: 0.85;
  transition: all var(--transition-fast);
}

.joint-hud-node:hover .hud-label,
.joint-hud-node.active .hud-label {
  opacity: 1;
  background: var(--color-volt);
  color: #090D14;
  border-color: var(--color-volt);
  box-shadow: 0 0 14px var(--color-volt-glow);
}

@media (max-width: 600px) {
  .hud-label {
    display: none;
  }
  .joint-hud-node.active .hud-label {
    display: block;
    font-size: 9px;
    padding: 2px 6px;
  }
  .joint-hud-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 12px;
    gap: 4px;
  }
  .hud-mono-text {
    font-size: 10px;
    letter-spacing: 0.02em;
  }
  .joint-hud-footer {
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 12px;
    gap: 4px;
    word-break: normal;
    hyphens: none;
  }
  .joint-hud-footer span {
    font-size: 11px !important;
  }
}

.joint-hud-node.active .hud-center-dot {
  background: var(--color-tangerine);
  box-shadow: 0 0 16px var(--color-tangerine);
  transform: scale(1.3);
}

.joint-hud-node.active .hud-ring {
  border-color: var(--color-tangerine);
}

.joint-hud-footer {
  background: rgba(16, 22, 34, 0.95);
  padding: 10px 16px;
  border-top: 1px solid var(--border-medium);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

/* Info Panel Enhancements */
.joint-info-panel {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  box-sizing: border-box !important;
}

@media (max-width: 600px) {
  .joint-info-panel {
    padding: 16px !important;
  }
}

.joint-tabs-bar {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.joint-tab-btn {
  padding: 7px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  font-weight: 700;
  transition: all var(--transition-fast);
}

.joint-tab-btn:hover, .joint-tab-btn.active {
  background: var(--color-volt);
  color: #090D14;
  border-color: var(--color-volt);
  box-shadow: 0 2px 10px var(--color-volt-glow);
}

@media (max-width: 600px) {
  .joint-tabs-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 6px;
    margin-bottom: var(--space-4);
  }
  .joint-tabs-bar::-webkit-scrollbar {
    display: none;
  }
  .joint-tab-btn {
    flex-shrink: 0;
  }
}

/* Joint Metrics Strip */
.joint-metrics-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: var(--space-4);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.joint-metric-pill {
  display: flex;
  flex-direction: column;
}

.pill-label {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.pill-val {
  font-size: 13px;
  font-weight: 800;
  color: #FFF;
}

.pill-val.volt {
  color: var(--color-volt);
}

.indication-tag {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 600;
}

/* Joint Recommended Product Card */
.joint-product-card {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  box-shadow: var(--shadow-volt-glow);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.joint-product-card__thumb {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  background: #090D14;
  border: 1px solid var(--border-medium);
}

@media (max-width: 540px) {
  .joint-metrics-strip {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .joint-product-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    gap: var(--space-3);
  }
  .joint-product-card__thumb {
    margin-inline: auto;
  }
  .joint-product-card > div:last-child {
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 8px !important;
  }
  .joint-product-card > div:last-child .btn {
    flex: 1 1 120px;
  }
}

/* ==========================================================================
   Founder Story Showcase
   ========================================================================== */
.story-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.story-card-highlight {
  position: relative;
  background: var(--bg-surface-card);
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-volt-glow);
}

.quote-badge {
  font-size: var(--fs-2xl);
  color: var(--color-volt);
  line-height: 1;
  font-family: serif;
}

.story-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: relative;
  margin-top: var(--space-8);
}

.story-timeline::before {
  content: '';
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 19px;
  width: 2px;
  background: var(--border-medium);
}

.timeline-step {
  display: flex;
  gap: var(--space-5);
  position: relative;
}

.timeline-dot {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  border: 2px solid var(--color-volt);
  color: var(--color-volt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--fs-xs);
  flex-shrink: 0;
  z-index: 2;
}

/* ==========================================================================
   Product Detail Page
   ========================================================================== */
.pdp-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: var(--space-12);
}

.pdp-gallery {
  position: sticky;
  top: 100px;
}

.pdp-main-img-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #0E141E;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-medium);
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.pdp-main-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pdp-thumbs {
  display: flex;
  gap: var(--space-3);
}

.pdp-thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-subtle);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.6;
  transition: all var(--transition-fast);
}

.pdp-thumb.active, .pdp-thumb:hover {
  opacity: 1;
  border-color: var(--color-volt);
}

.pdp-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pdp-details {
  display: flex;
  flex-direction: column;
}

.pdp-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.pdp-price-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.pdp-price {
  font-size: var(--fs-3xl);
  font-weight: 900;
  color: var(--color-volt);
}

.pdp-price-old {
  font-size: var(--fs-lg);
  text-decoration: line-through;
  color: var(--text-dim);
}

.pdp-tabs {
  margin-top: var(--space-12);
}

.tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--border-medium);
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.tabs-nav::-webkit-scrollbar {
  display: none;
}

.tab-nav-item {
  padding-bottom: var(--space-3);
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.tab-nav-item.active {
  color: var(--color-volt);
}

.tab-nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-volt);
}

/* ==========================================================================
   Shop Page Layout & Mobile Filters
   ========================================================================== */
.shop-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
  align-items: start;
}

/* Wishlist Mode: Full-width catalog without sidebar filter elements */
.shop-layout.is-wishlist-mode {
  grid-template-columns: 1fr !important;
  max-width: 100%;
}

.shop-layout.is-wishlist-mode .shop-sidebar,
.shop-layout.is-wishlist-mode .shop-mobile-filter-bar,
.shop-layout.is-wishlist-mode .shop-mobile-cat-chips {
  display: none !important;
}

.shop-layout.is-wishlist-mode #shop-products-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
  gap: var(--space-6) !important;
}

@media (max-width: 640px) {
  .shop-layout.is-wishlist-mode #shop-products-grid {
    grid-template-columns: minmax(0, 1fr) !important;
  }
}

.shop-mobile-filter-bar {
  display: none;
  margin-bottom: var(--space-4);
}

.shop-mobile-cat-chips {
  display: none;
  overflow-x: auto;
  white-space: nowrap;
  gap: 8px;
  padding-bottom: 8px;
  margin-bottom: var(--space-4);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.shop-mobile-cat-chips::-webkit-scrollbar {
  display: none;
}

.shop-cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.shop-cat-chip.active {
  background: var(--color-volt);
  color: #090D14;
  border-color: var(--color-volt);
  font-weight: 800;
  box-shadow: 0 0 12px rgba(212, 254, 43, 0.35);
}

/* Quick View Responsive Grid */
.quick-view-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 640px) {
  .quick-view-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* Cart Item Responsive Rows */
.cart-item-row {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-5);
  transition: all var(--transition-fast);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.cart-item-row__media-link {
  flex-shrink: 0;
  text-decoration: none;
  display: block;
}

.cart-item-row__img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: #000;
  flex-shrink: 0;
  display: block;
}

.cart-item-row__info {
  flex: 1 1 auto;
  min-width: 0;
}

.cart-item-row__title {
  font-size: var(--fs-md);
  font-weight: 800;
  color: #FFF;
  margin-bottom: 4px;
  line-height: 1.35;
}

.cart-item-title-link {
  color: #FFF;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.cart-item-row__meta {
  font-size: 12px;
  color: var(--color-volt);
  font-weight: 700;
  margin-bottom: 4px;
}

.cart-item-row__price {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
}

.cart-item-row__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
  box-sizing: border-box;
  max-width: 100%;
}

.cart-item-qty-control {
  display: flex;
  align-items: center;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  box-sizing: border-box;
}

.cart-full-qty-btn {
  padding: 8px 12px;
  font-weight: 800;
  background: transparent;
  border: none;
  color: #FFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.cart-full-qty-btn:hover {
  color: var(--color-volt);
  background: rgba(255, 255, 255, 0.06);
}

.cart-qty-num {
  min-width: 28px;
  text-align: center;
  font-weight: 800;
  font-size: 13px;
  color: #FFF;
}

.cart-item-total-price {
  font-weight: 900;
  font-size: var(--fs-md);
  min-width: 70px;
  text-align: right;
  color: #FFF;
  white-space: nowrap;
}

@media (max-width: 820px) {
  .cart-item-row {
    flex-wrap: wrap;
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .cart-item-row__img {
    width: 68px !important;
    height: 68px !important;
  }

  .cart-item-row__info {
    flex: 1 1 calc(100% - 84px);
    min-width: 0;
  }

  .cart-item-row__actions {
    width: 100% !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: var(--space-3) !important;
    padding-top: var(--space-3) !important;
    border-top: 1px solid var(--border-subtle) !important;
    box-sizing: border-box !important;
  }
}

@media (max-width: 480px) {
  .cart-item-row {
    padding: 12px;
    gap: 10px;
  }

  .cart-item-row__img {
    width: 60px !important;
    height: 60px !important;
  }

  .cart-item-row__info {
    flex: 1 1 calc(100% - 74px);
  }

  .cart-item-row__title {
    font-size: var(--fs-sm);
  }

  .cart-item-row__actions {
    gap: 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .cart-full-qty-btn {
    padding: 6px 9px;
  }

  .cart-qty-num {
    min-width: 22px;
    font-size: 12px;
  }

  .cart-item-total-price {
    font-size: var(--fs-sm);
    min-width: auto;
  }

  .cart-item-delete-btn {
    padding: 6px 10px !important;
    font-size: 11px !important;
    gap: 4px !important;
    box-sizing: border-box !important;
    max-width: 100% !important;
  }
}

/* Sticky Mobile Buy Bar for PDP */
.mobile-sticky-buy-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-sticky-buy-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(9, 13, 20, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-volt);
    padding: 10px 16px;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transform: translateY(100%);
    transition: transform var(--transition-base);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
  }
  .mobile-sticky-buy-bar.is-visible {
    transform: translateY(0);
  }
}

/* ==========================================================================
   Checkout & Cart Pages
   ========================================================================== */
.cart-layout, .checkout-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.order-summary-card {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .shop-layout {
    display: flex !important;
    flex-direction: column !important;
    gap: var(--space-6) !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
  .shop-layout > * {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
  .shop-main-col {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }
  .shop-mobile-filter-bar {
    display: flex;
    gap: var(--space-3);
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .shop-mobile-cat-chips {
    display: flex;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .shop-sidebar {
    display: none;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .shop-sidebar.is-open {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    animation: fadeIn 0.25s ease-out;
  }
  .hero__inner,
  .joint-selector-layout,
  .story-split,
  .pdp-grid,
  .cart-layout,
  .checkout-layout {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
  .hero__inner > *,
  .joint-selector-layout > *,
  .story-split > *,
  .pdp-grid > *,
  .cart-layout > *,
  .checkout-layout > * {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
  .hero__floating-badge.badge-top,
  .hero__floating-badge.badge-bottom {
    position: static;
    margin-block: var(--space-2);
  }
  .pdp-gallery {
    position: static;
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* ==========================================================================
   Joint-Lab™ Interactive Clinical Advisor Styles (Desktop & Mobile Optimized)
   ========================================================================== */
.joint-lab-wizard-card {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.joint-lab-step-block {
  margin-bottom: var(--space-8);
}

.joint-lab-step-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-4);
}

.joint-lab-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-volt);
  color: #090D14;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}

.joint-lab-step-title {
  font-size: var(--fs-lg);
  font-weight: 800;
  margin: 0;
  color: #FFF;
  line-height: 1.35;
}

.joint-lab-option {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  user-select: none;
  min-height: 66px;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.joint-lab-option:hover {
  border-color: rgba(212, 254, 43, 0.4);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.joint-lab-option:has(input:checked),
.joint-lab-option.is-selected {
  border-color: var(--color-volt);
  background: rgba(212, 254, 43, 0.09);
  box-shadow: 0 0 16px rgba(212, 254, 43, 0.22);
}

.joint-lab-option input[type="radio"] {
  accent-color: var(--color-volt);
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin: 0;
  cursor: pointer;
}

.joint-lab-option__content {
  min-width: 0;
  flex: 1;
}

.joint-lab-option__title {
  font-weight: 700;
  color: #FFF;
  font-size: 14px;
  line-height: 1.3;
}

.joint-lab-option__desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.35;
  margin-top: 3px;
}

/* Submit Button - Desktop & Mobile Modes */
.lab-submit-btn {
  width: 100%;
  min-height: 52px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: var(--radius-md);
  padding: 14px 22px;
  cursor: pointer;
  line-height: 1.3;
  font-size: 15px;
  letter-spacing: -0.01em;
  transition: all var(--transition-base);
}

.lab-submit-text-desktop {
  display: inline;
}

.lab-submit-text-mobile {
  display: none;
}

/* Result Card */
.joint-lab-result-card {
  background: rgba(212, 254, 43, 0.04);
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: 0 0 35px rgba(212, 254, 43, 0.08);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
}

.joint-lab-result-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: var(--space-4);
}

.joint-lab-profile-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.joint-lab-profile-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
}

.joint-lab-profile-tag.volt {
  background: rgba(212, 254, 43, 0.1);
  border-color: rgba(212, 254, 43, 0.3);
  color: var(--color-volt);
}

.joint-lab-result-title {
  color: #FFF;
  font-size: var(--fs-2xl);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: var(--space-3);
  word-break: normal;
  overflow-wrap: normal;
  hyphens: none;
}

.joint-lab-result-desc {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.65;
  margin-bottom: var(--space-6);
  overflow-wrap: break-word;
}

/* 3 Recommended Product Cards Grid */
.joint-lab-products-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-block: var(--space-6);
  width: 100%;
}

.joint-lab-product-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.joint-lab-product-card:hover {
  border-color: rgba(212, 254, 43, 0.5);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.joint-lab-step-pill {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: rgba(9, 13, 20, 0.85);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(4px);
}

.joint-lab-step-pill.volt {
  color: var(--color-volt);
  border-color: var(--color-volt);
}

.joint-lab-step-pill.tangerine {
  color: var(--color-tangerine);
  border-color: var(--color-tangerine);
}

.joint-lab-step-pill.cyan {
  color: #00F0FF;
  border-color: #00F0FF;
}

.joint-lab-card-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: #000;
  margin-bottom: var(--space-3);
  display: block;
}

.joint-lab-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.joint-lab-card-price {
  font-weight: 900;
  font-size: var(--fs-md);
  color: var(--color-volt);
}

/* Joint Lab 3-Phase Therapy Grid */
.joint-lab-phases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  width: 100%;
}

/* Bundle Banner */
.joint-lab-bundle-banner {
  background: linear-gradient(135deg, rgba(212, 254, 43, 0.12) 0%, rgba(9, 13, 20, 0.95) 100%);
  border: 1px solid var(--color-volt);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-top: var(--space-6);
  box-shadow: 0 0 25px rgba(212, 254, 43, 0.15);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
}

.joint-lab-bundle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.joint-lab-bundle-price-box {
  text-align: right;
}

.joint-lab-price-strike {
  font-size: var(--fs-md);
  color: var(--text-muted);
  text-decoration: line-through;
  margin-right: 8px;
}

.joint-lab-price-total {
  font-size: var(--fs-2xl);
  font-weight: 900;
  color: var(--color-volt);
}

.joint-lab-discount-badge {
  display: inline-block;
  background: var(--color-tangerine);
  color: #090D14;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-left: 8px;
}

.joint-lab-bundle-perks {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: var(--space-4);
  font-size: 12px;
  color: var(--text-secondary);
}

.joint-lab-bundle-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: stretch;
}

.bundle-cta-btn {
  flex: 2;
  min-width: 260px;
  min-height: 52px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px 20px;
  cursor: pointer;
  border-radius: var(--radius-md);
  line-height: 1.3;
}

.bundle-btn-title-desktop {
  display: inline;
}

.bundle-btn-title-mobile {
  display: none;
}

.bundle-restart-btn {
  flex: 1;
  min-width: 150px;
  min-height: 52px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px 16px;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   Joint-Lab™ Mobile Adaptive Refinements (< 768px & < 640px)
   ========================================================================== */
@media (max-width: 768px) {
  .joint-lab-phases-grid {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: var(--space-3);
  }
  .joint-lab-products-grid {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 16px !important;
  }
}

@media (max-width: 640px) {
  .joint-lab-wizard-card,
  .joint-lab-result-card {
    padding: 16px 14px !important;
    border-radius: var(--radius-lg) !important;
  }

  .joint-lab-step-block {
    margin-bottom: 22px !important;
  }

  .joint-lab-step-header {
    gap: 8px !important;
    margin-bottom: 12px !important;
  }

  .joint-lab-step-num {
    width: 24px !important;
    height: 24px !important;
    font-size: 11px !important;
  }

  .joint-lab-step-title {
    font-size: 15px !important;
    line-height: 1.3 !important;
  }

  /* Force options into 1 clean, proportional column */
  #joint-lab-form .grid-2,
  #joint-lab-form .grid-3 {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 8px !important;
  }

  .joint-lab-option {
    padding: 11px 13px !important;
    min-height: 50px !important;
    gap: 10px !important;
    border-radius: var(--radius-md) !important;
  }

  .joint-lab-option input[type="radio"] {
    width: 18px !important;
    height: 18px !important;
  }

  .joint-lab-option__title {
    font-size: 13px !important;
    line-height: 1.25 !important;
  }

  .joint-lab-option__desc {
    font-size: 11px !important;
    line-height: 1.3 !important;
    margin-top: 2px !important;
  }

  /* Submit Button Mobile Mode: Crisp single line */
  .lab-submit-btn {
    min-height: 48px !important;
    padding: 12px 14px !important;
    font-size: 13.5px !important;
  }

  .lab-submit-text-desktop {
    display: none !important;
  }

  .lab-submit-text-mobile {
    display: inline !important;
  }

  /* Result View Mobile */
  .joint-lab-result-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
  }

  .joint-lab-result-title {
    font-size: 1.3rem !important;
    margin-bottom: 8px !important;
  }

  .joint-lab-result-desc {
    font-size: 13px !important;
    margin-bottom: 16px !important;
  }

  .joint-lab-product-card {
    padding: 12px !important;
  }

  .joint-lab-card-thumb {
    max-height: 200px !important;
  }

  .add-single-btn {
    min-height: 38px !important;
    padding: 8px 14px !important;
    font-size: 12px !important;
  }

  /* Bundle Banner Mobile Mode */
  .joint-lab-bundle-banner {
    padding: 16px 12px !important;
    border-radius: var(--radius-lg) !important;
  }

  .joint-lab-bundle-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
  }

  .joint-lab-bundle-price-box {
    text-align: left !important;
    width: 100% !important;
  }

  .joint-lab-price-total {
    font-size: 1.55rem !important;
  }

  .joint-lab-bundle-perks {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 4px !important;
    font-size: 11px !important;
  }

  /* Bundle Buttons Mobile Mode: Stack vertically with clear 2-line layout */
  .joint-lab-bundle-actions {
    flex-direction: column !important;
    width: 100% !important;
    gap: 10px !important;
  }

  .bundle-cta-btn {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 52px !important;
    padding: 10px 14px !important;
    box-sizing: border-box !important;
  }

  .bundle-btn-title-desktop {
    display: none !important;
  }

  .bundle-btn-title-mobile {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 2px !important;
  }

  .bundle-btn-main {
    font-size: 13.5px !important;
    font-weight: 800 !important;
    line-height: 1.2 !important;
  }

  .bundle-btn-sub {
    font-size: 11px !important;
    font-weight: 600 !important;
    opacity: 0.9 !important;
    line-height: 1.2 !important;
  }

  .bundle-restart-btn {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 42px !important;
    font-size: 12.5px !important;
    box-sizing: border-box !important;
  }
}

/* PDP Reassurance Grid */
.pdp-reassurance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 540px) {
  .pdp-reassurance-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* ==========================================================================
   Comprehensive Mobile Proportional Enhancements
   ========================================================================== */

/* Cart & Promo Form */
@media (max-width: 480px) {
  #promo-form {
    flex-direction: column;
    gap: 8px;
  }
  #promo-form button {
    width: 100%;
    min-height: 44px;
  }
}

/* Tracking Form */
@media (max-width: 480px) {
  #tracking-search-form {
    flex-direction: column;
    gap: 10px;
  }
  #tracking-search-form button {
    width: 100%;
    min-height: 44px;
  }
}

/* Order Tracking Page: Representative Notice Card & Not Found States */
.tracking-notice-card {
  background: linear-gradient(135deg, rgba(212, 254, 43, 0.08) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid rgba(212, 254, 43, 0.4);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: relative;
  overflow: hidden;
}

.tracking-notice-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-volt);
  box-shadow: 0 0 12px var(--color-volt);
}

.tracking-notice-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-volt);
  background: rgba(212, 254, 43, 0.12);
  border: 1px solid rgba(212, 254, 43, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  width: fit-content;
}

.tracking-notice-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-volt);
  box-shadow: 0 0 8px var(--color-volt);
  animation: pulseVolt 2s infinite;
}

.tracking-notice-header {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.tracking-notice-icon-box {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(212, 254, 43, 0.15);
  border: 1px solid rgba(212, 254, 43, 0.45);
  color: var(--color-volt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tracking-notice-heading-wrap {
  flex-grow: 1;
}

.tracking-notice-title {
  font-size: 17px;
  font-weight: 800;
  color: #FFF;
  margin: 0 0 6px 0;
}

.tracking-notice-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.tracking-notice-footer {
  margin-top: 2px;
}

.tracking-notice-pill {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(0, 240, 118, 0.08);
  border: 1px solid rgba(0, 240, 118, 0.25);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  font-size: 12px;
  color: #E2E8F0;
  line-height: 1.45;
}

.tracking-notice-pill svg {
  color: var(--color-cyber-green);
  flex-shrink: 0;
  margin-top: 1px;
}

/* Tracking Not Found State */
.tracking-not-found-card {
  background: linear-gradient(135deg, rgba(255, 83, 42, 0.08) 0%, rgba(20, 14, 14, 0.95) 100%);
  border: 1px solid rgba(255, 83, 42, 0.35);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--space-8);
  animation: fadeIn 0.3s ease-out;
}

.tracking-not-found-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 83, 42, 0.12);
  border: 2px solid rgba(255, 83, 42, 0.4);
  color: #FF532A;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4) auto;
  box-shadow: 0 0 24px rgba(255, 83, 42, 0.2);
}

.tracking-not-found-badge {
  display: inline-block;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #FF7B5B;
  background: rgba(255, 83, 42, 0.12);
  border: 1px solid rgba(255, 83, 42, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.tracking-not-found-title {
  font-size: clamp(20px, 4vw, 24px);
  font-weight: 800;
  color: #FFF;
  margin: 0 0 10px 0;
}

.tracking-not-found-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto var(--space-6) auto;
  line-height: 1.5;
}

.tracking-searched-code {
  display: inline-block;
  font-family: monospace;
  font-weight: 800;
  color: #FFF;
  background: rgba(255, 83, 42, 0.2);
  border: 1px solid rgba(255, 83, 42, 0.4);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  word-break: break-all;
}

.tracking-not-found-reasons {
  text-align: left;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  max-width: 520px;
  margin: 0 auto var(--space-6) auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.tracking-reason-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.4;
}

.tracking-reason-bullet {
  color: #FF532A;
  font-weight: bold;
}

.tracking-not-found-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .tracking-notice-header {
    flex-direction: column;
    gap: 12px;
  }
  .tracking-notice-icon-box {
    width: 40px;
    height: 40px;
  }
  .tracking-not-found-actions {
    flex-direction: column;
    width: 100%;
  }
  .tracking-not-found-actions button,
  .tracking-not-found-actions a {
    width: 100%;
    justify-content: center;
  }
}

/* Story Page Media */
@media (max-width: 640px) {
  .story-card-highlight {
    padding: var(--space-5);
  }
  img[src*="hero_physio_lab"],
  img[src*="hero_gymnastics"] {
    height: 240px !important;
  }
}

/* Product Detail Page (PDP) Mobile Refinements */
@media (max-width: 768px) {
  .pdp-title {
    font-size: clamp(1.2rem, 4.8vw, 1.55rem) !important;
    line-height: 1.25 !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
    hyphens: none !important;
  }
  .pdp-meta-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .pdp-gallery-main {
    height: 320px;
  }
}

/* Contact Page Mobile */
@media (max-width: 640px) {
  #contact-form button[type="submit"] {
    width: 100%;
  }
}

/* Order Summary Cards */
@media (max-width: 480px) {
  .order-summary-card {
    padding: var(--space-4);
  }
}

/* Shop Products Grid & Chips Mobile */
@media (max-width: 640px) {
  #shop-products-grid,
  .shop-products-grid {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 16px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .shop-mobile-cat-chips {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
}

/* Checkout Mobile Header & Body Top Spacing Reset */
body.checkout-page {
  padding-top: 0 !important;
}

.checkout-header {
  background: rgba(16, 22, 34, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-medium);
  padding-block: var(--space-4);
  position: relative;
  z-index: 100;
  width: 100%;
}

.checkout-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.checkout-ssl-badge {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 768px) {
  body.checkout-page {
    padding-top: 0 !important;
  }
  .checkout-header {
    padding-block: var(--space-3);
  }
}

@media (max-width: 480px) {
  .checkout-header .header__logo img {
    width: 130px;
    height: auto;
  }
  .checkout-ssl-badge {
    font-size: 11px;
    gap: 6px;
  }
  .checkout-ssl-badge svg {
    width: 14px;
    height: 14px;
  }
}

/* PDP Action Row & Wishlist Button */
.pdp-action-row {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  align-items: stretch;
}

.pdp-qty-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0 8px;
  flex-shrink: 0;
}

#pdp-wishlist-btn {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  flex-shrink: 0 !important;
  cursor: pointer;
  transition: all var(--transition-fast);
}

#pdp-wishlist-btn svg {
  width: 22px !important;
  height: 22px !important;
  max-width: 22px !important;
  max-height: 22px !important;
  color: #FFFFFF !important;
  stroke: #FFFFFF !important;
  display: block !important;
  flex-shrink: 0 !important;
  transition: transform var(--transition-fast), stroke var(--transition-fast), fill var(--transition-fast);
}

#pdp-wishlist-btn:hover {
  border-color: var(--color-volt);
  background: var(--bg-surface-3);
  transform: translateY(-1px);
}

#pdp-wishlist-btn:hover svg {
  color: var(--color-volt) !important;
  stroke: var(--color-volt) !important;
  transform: scale(1.1);
}

#pdp-wishlist-btn.active {
  background: rgba(212, 254, 43, 0.15) !important;
  border-color: var(--color-volt) !important;
  color: var(--color-volt) !important;
  box-shadow: 0 0 16px rgba(212, 254, 43, 0.25);
}

#pdp-wishlist-btn.active svg {
  fill: var(--color-volt) !important;
  stroke: var(--color-volt) !important;
  color: var(--color-volt) !important;
}

@media (max-width: 480px) {
  .pdp-action-row {
    gap: 8px !important;
  }
  .pdp-qty-wrap {
    padding: 0 4px !important;
  }
  #pdp-qty-minus, #pdp-qty-plus {
    padding: 8px 8px !important;
    font-size: 16px !important;
  }
  #pdp-qty-display {
    min-width: 24px !important;
    font-size: 14px !important;
  }
  #pdp-add-cart-btn {
    padding: 8px 12px !important;
    font-size: 13px !important;
    gap: 6px !important;
  }
  #pdp-add-cart-btn svg {
    width: 17px !important;
    height: 17px !important;
  }
  #pdp-wishlist-btn {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    min-height: 44px !important;
    padding: 0 !important;
  }
  #pdp-wishlist-btn svg {
    width: 20px !important;
    height: 20px !important;
  }
}