.product-sticky-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}

.sticky-bar-inner {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
}

.sticky-bar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0 0.65rem;
  min-width: 0;
}

.sticky-bar-title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0;
  min-width: 0;
}

.sticky-bar-title-short {
  display: none;
}

.sticky-bar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.sticky-bar-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  padding-bottom: 0.75rem;
  font-size: 0.875rem;
}

.sticky-bar-size {
  font-weight: 600;
  color: var(--text-muted);
}

.sticky-bar-rating {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.sticky-bar-rating strong {
  font-weight: 700;
}

.sticky-bar-rating .rating-link {
  color: var(--text);
  text-decoration: underline;
  font-weight: 600;
}

.sticky-bar-sku {
  color: var(--text-dim);
  font-size: 0.8125rem;
}

.sticky-bar-nav {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
  min-width: 0;
  scrollbar-width: none;
  border-top: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}

.sticky-bar-nav::-webkit-scrollbar {
  display: none;
}

.sticky-bar-nav a {
  white-space: nowrap;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
  padding: 0.85rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s;
}

.sticky-bar-nav a:hover,
.sticky-bar-nav a.active {
  border-bottom-color: var(--text);
}

.product-sticky-bar.is-scrolled .sticky-bar-top {
  padding: 0.85rem 0 0.75rem;
}

.product-sticky-bar.is-scrolled .sticky-bar-title {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
}

.product-sticky-bar.is-scrolled .sticky-bar-meta {
  display: none;
}

.product-hero {
  padding: 1rem 0 2rem;
}

.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
  width: 100%;
}

.product-hero-grid > * {
  min-width: 0;
  max-width: 100%;
}

.product-gallery-col {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.product-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5rem;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.product-meta-extra {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.rating-stars {
  color: #f5a623;
  letter-spacing: 0.05em;
}

.rating-link {
  font-size: 0.875rem;
  color: var(--primary);
  text-decoration: underline;
}

.gallery-main {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--samsung-gray-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-main img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
}

.gallery-thumbs-scroll {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  margin-top: 0.75rem;
}

.gallery-thumbs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding-bottom: 0.25rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.gallery-thumbs::-webkit-scrollbar {
  display: none;
}

.gallery-thumb {
  flex: 0 0 72px;
  width: 72px;
  height: 72px;
  min-width: 0;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  background: var(--samsung-gray-100);
  padding: 0;
}

.gallery-thumb.active,
.gallery-thumb:hover {
  border-color: var(--primary);
}

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

.buy-box {
  position: static;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
  width: 100%;
}

.buy-box-size {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}

.price-current {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.price-old {
  font-size: 1rem;
  color: var(--text-dim);
  text-decoration: line-through;
}

.price-note {
  font-size: 0.8125rem;
  color: var(--success);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.liquidation-notice {
  background: #f0f7ff;
  border: 1px solid #c8dff9;
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.liquidation-notice strong {
  display: block;
  color: var(--text);
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

.liquidation-notice p {
  margin: 0.35rem 0 0;
}

.liquidation-compare {
  font-size: 0.75rem;
  opacity: 0.9;
}

.seller-note {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
  margin: 0.65rem 0 0;
}

.manual-unavailable {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.manual-unavailable a {
  text-decoration: underline;
}

.buy-box .btn-primary {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.trust-item {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.section {
  padding: 2.5rem 0;
}

#features,
#specs,
#reviews,
#support,
#points-forts {
  scroll-margin-top: calc(var(--sticky-offset) + 12px);
}

.section:nth-child(even) {
  background: var(--samsung-gray-100);
}

.section-head {
  margin-bottom: 2rem;
}

.section-head h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.section-head p {
  color: var(--text-muted);
  max-width: 720px;
  margin: 0;
}

/* Points Forts / Key highlights - Samsung style */
.pf-section {
  padding: 0 0 3rem;
  background: #fff;
}

.pf-section + .vision-ai-hero {
  margin-top: 1rem;
}

.pf-heading {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}

.pf-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.pf-card {
  background: #f7f7f7;
  border-radius: 4px;
  padding: 1.25rem;
  min-height: auto;
  display: flex;
  flex-direction: column;
}

.pf-card-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1rem;
}

.pf-card-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.pf-card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.pf-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.pf-awards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.pf-award {
  text-align: center;
}

.pf-award-img {
  width: auto;
  max-width: 120px;
  height: 80px;
  object-fit: contain;
  margin: 0 auto 1rem;
  display: block;
}

.pf-award-badge {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  background: #f7f7f7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.pf-award strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

.pf-award span {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Vision AI hero */
.vision-ai-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 2rem;
}

.vision-ai-video-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 4rem;
}

.vision-ai-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.features-section {
  background: #fff;
}

.feature-eyebrow {
  font-size: 0.8125rem;
  color: var(--text-dim);
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
}

.feature-subtitle {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 1rem;
}

.feature-desc {
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.feature-block.reverse .feature-copy {
  order: 2;
}

.feature-block.reverse .feature-media {
  order: 1;
}

/* Specifications - Samsung accordion */
.specs-section {
  background: #fff;
  border-top: 1px solid var(--border);
}

.specs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.specs-heading {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

.specs-expand-all {
  background: none;
  border: none;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  color: var(--text);
}

.specs-panel {
  border-bottom: 1px solid var(--border);
}

.specs-panel summary {
  cursor: pointer;
  padding: 1.25rem 0;
  font-weight: 700;
  font-size: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.specs-panel summary::-webkit-details-marker {
  display: none;
}

.specs-chevron {
  width: 12px;
  height: 12px;
  border-right: 2px solid #000;
  border-bottom: 2px solid #000;
  transform: rotate(-135deg);
  transition: transform 0.2s;
}

.specs-panel[open] .specs-chevron {
  transform: rotate(45deg);
}

.specs-overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 0 0 1.5rem;
}

.specs-overview-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.specs-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.specs-value {
  font-size: 0.9375rem;
  font-weight: 700;
}

/* Reviews - Samsung layout */
.reviews-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.reviews-heading {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.reviews-product-name {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.reviews-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 2rem;
}

.reviews-score-main {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.reviews-star-icon {
  color: #f5a623;
  font-size: 1.75rem;
}

.reviews-score-num {
  font-size: 2rem;
  font-weight: 700;
}

.reviews-count-link {
  font-size: 0.875rem;
  color: var(--text);
  text-decoration: underline;
}

.reviews-recommend {
  font-size: 0.875rem;
  margin: 0.75rem 0;
  color: var(--text-muted);
}

.reviews-write-btn {
  background: #fff;
  border: 1px solid #000;
  border-radius: var(--radius-pill);
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}

.review-bar-label {
  width: 28px;
  font-size: 0.8125rem;
}

.review-bar-pct {
  width: 32px;
  font-size: 0.8125rem;
  text-align: right;
}

.review-bar-count {
  width: 52px;
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.reviews-value-block {
  text-align: left;
}

.reviews-value-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.reviews-value-stars {
  color: #f5a623;
  font-size: 0.875rem;
  display: inline;
}

.reviews-value-num {
  font-weight: 700;
  margin-left: 0.35rem;
}

.reviews-ai-summary {
  background: #f7f7f7;
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.ai-summary-head {
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ai-spark {
  color: var(--primary);
}

.ai-summary-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.ai-disclaimer {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 0.75rem 0 0;
}

.reviews-media-section {
  margin-bottom: 2rem;
}

.reviews-media-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.reviews-media-tabs {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.reviews-media-tabs button {
  background: none;
  border: none;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.reviews-media-tabs button.active {
  color: var(--text);
  border-bottom-color: var(--text);
}

.reviews-media-wrap {
  position: relative;
}

.reviews-media-carousel {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.reviews-media-carousel::-webkit-scrollbar {
  display: none;
}

.reviews-media-next {
  position: absolute;
  right: -0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  z-index: 2;
}

.reviews-media-item {
  flex: 0 0 120px;
  width: 120px;
  height: 120px;
  border: none;
  padding: 0;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: #000;
}

.reviews-media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.reviews-media-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  background: rgba(0, 0, 0, 0.35);
}

.reviews-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.reviews-sort select {
  margin-left: 0.5rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.review-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #eee;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.review-author {
  font-weight: 700;
  font-size: 0.875rem;
}

.review-date,
.review-size {
  font-size: 0.8125rem;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

.review-rating-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.review-text {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text);
  margin: 0 0 0.75rem;
}

.review-source {
  font-size: 0.8125rem;
  color: var(--text-dim);
  margin: 0;
}

.review-share {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
}

.media-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.media-lightbox[hidden] {
  display: none;
}

.media-lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: #fff;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
}

.sub-heading {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.manual-size {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.features-list {
  display: grid;
  gap: 2rem;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: center;
}

.feature-block:nth-child(even) .feature-copy,
.feature-block:nth-child(even) .feature-media {
  order: unset;
}

.feature-copy h3 {
  font-size: 1.25rem;
  margin: 0 0 0.35rem;
}

.feature-copy h4 {
  font-size: 1rem;
  color: var(--primary);
  margin: 0 0 0.75rem;
}

.feature-copy p {
  color: var(--text-muted);
  margin: 0;
  line-height: 1.65;
}

.feature-media {
  aspect-ratio: 16 / 10;
  background: #f7f7f7;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.specs-wrap details {
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.specs-wrap summary {
  cursor: pointer;
  padding: 1rem 0;
  font-weight: 600;
  list-style: none;
}

.specs-wrap summary::-webkit-details-marker {
  display: none;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.specs-table td {
  padding: 0.5rem 0;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.specs-table td:first-child {
  color: var(--text-muted);
  width: 42%;
  padding-right: 1rem;
}

.reviews-section {
  scroll-margin-top: var(--sticky-offset);
}

.reviews-summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 2rem;
  padding: 1.25rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.reviews-score .big {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
}

.review-bar-row {
  display: grid;
  grid-template-columns: 56px 1fr 40px;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.8125rem;
  margin-bottom: 0.35rem;
}

.review-bar {
  height: 8px;
  background: var(--border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.review-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: inherit;
}

.reviews-list {
  display: grid;
  gap: 1rem;
}

.review-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.review-card-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.review-card-author {
  font-weight: 600;
  font-size: 0.9375rem;
}

.review-card-date {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.review-card-title {
  font-weight: 600;
  margin: 0 0 0.35rem;
}

.review-card-text {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.6;
}

.review-verified {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--success);
  font-weight: 600;
  margin-top: 0.5rem;
}

.reviews-pagination {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 2rem;
}

.page-btn {
  min-width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
}

.page-btn.active,
.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.assistance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.manual-list {
  display: grid;
  gap: 0.75rem;
}

.manual-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.manual-item a {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
}

.faq-list details {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
  padding: 0 1rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  padding: 1rem 0;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.assist-chat {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

.assist-chat-head {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.assist-chat-body {
  flex: 1;
  padding: 1rem 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.assist-msg {
  max-width: 88%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.5;
}

.assist-msg.bot {
  background: var(--samsung-gray-100);
  align-self: flex-start;
}

.assist-msg.user {
  background: var(--primary);
  color: #fff;
  align-self: flex-end;
}

.assist-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1.25rem 1rem;
}

.assist-chip {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
  cursor: pointer;
}

.assist-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.assist-input-row {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}

.assist-input-row input {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0.65rem 1rem;
}

.support-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.support-card {
  padding: 1.25rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.support-card h4 {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
}

.support-card p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.support-card a {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.8125rem;
}

.awards-row {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.award-item {
  max-width: 280px;
}

.award-item strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.award-item span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Mobile polish */
@media (max-width: 767px) {
  .sticky-bar-top {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
    padding: 0.75rem 0 0.55rem;
  }

  .sticky-bar-title-long {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .sticky-bar-title-short {
    display: block;
    font-size: 1.0625rem;
    line-height: 1.35;
  }

  .sticky-bar-meta {
    display: none;
  }

  .sticky-bar-actions {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .sticky-bar-actions .currency-badge {
    display: none;
  }

  .sticky-bar-actions .btn {
    flex: 1;
    width: 100%;
    font-size: 1rem;
    padding: 0.85rem 1rem;
  }

  .gallery-thumb {
    flex: 0 0 72px;
    width: 72px;
    height: 72px;
  }

  .buy-box .btn-primary {
    padding: 1rem;
    font-size: 1.0625rem;
  }

  .trust-item {
    font-size: 0.8125rem;
  }

  .product-sticky-bar.is-scrolled .sticky-bar-top {
    flex-direction: row;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0;
  }

  .product-sticky-bar.is-scrolled .sticky-bar-title-short {
    flex: 1;
    min-width: 0;
    font-size: 0.875rem;
    line-height: 1.25;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .product-sticky-bar.is-scrolled .sticky-bar-actions {
    width: auto;
    flex-shrink: 0;
  }

  .product-sticky-bar.is-scrolled .sticky-bar-actions .btn {
    flex: none;
    width: auto;
    padding: 0.55rem 1rem;
    font-size: 0.875rem;
    white-space: nowrap;
  }
}

/* Tablet */
@media (min-width: 768px) {
  .sticky-bar-top {
    padding: 1rem 0 0.75rem;
    gap: 1rem;
  }

  .sticky-bar-title {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
  }

  .product-hero {
    padding: 1.5rem 0 2.5rem;
  }

  .product-hero-grid {
    gap: 2rem;
  }

  .pf-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .pf-awards {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .specs-overview-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 2rem;
  }

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

  .support-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 3rem 0;
  }

  .section-head h2 {
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  }

  .pf-heading {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 2rem;
  }
}

/* Desktop */
@media (min-width: 1101px) {
  .sticky-bar-top {
    padding: 1.25rem 0 1rem;
    gap: 1.5rem;
  }

  .product-hero {
    padding: 2rem 0 3rem;
  }

  .product-hero-grid {
    grid-template-columns: minmax(0, 1fr) var(--checkout-sidebar);
    gap: 2.5rem;
  }

  .buy-box {
    position: sticky;
    top: var(--sticky-offset);
    padding: 1.5rem;
  }

  .pf-cards {
    grid-template-columns: repeat(4, 1fr);
  }

  .pf-card {
    min-height: 200px;
    padding: 1.5rem 1.25rem;
  }

  .specs-overview-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .reviews-top {
    grid-template-columns: 220px 1fr 180px;
    gap: 2.5rem;
  }

  .review-item {
    grid-template-columns: 160px 1fr;
    gap: 2rem;
    padding: 2rem 0;
  }

  .reviews-summary {
    grid-template-columns: 160px 1fr 200px;
    gap: 2rem;
    padding: 1.5rem;
  }

  .feature-block {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .feature-block:nth-child(even) .feature-copy {
    order: 2;
  }

  .feature-block:nth-child(even) .feature-media {
    order: 1;
  }

  .support-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .section {
    padding: 4rem 0;
  }
}