/* ═══════════════════════════════════════════════════════════════
   PRODUCT PAGE — JAX3
   21st.dev: ZoomImage + Sliding Tabs (adaptés vanilla)
   ═══════════════════════════════════════════════════════════════ */

/* ── STICKY ADD-TO-CART (bottom bar quand on scroll) ──────────── */
.sticky-cart {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-top: 1px solid var(--line);
  transform: translateY(110%);
  transition: transform 400ms var(--ease-spring);
  box-shadow: 0 -8px 32px -8px rgba(0,0,0,0.12);
}
.sticky-cart.is-visible { transform: translateY(0); }

.sticky-cart__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0.75rem var(--container-x);
  display: flex;
  align-items: center;
  gap: var(--s-4);
}

.sticky-cart__product {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  flex: 1;
  min-width: 0;
}

.sticky-cart__img {
  width: 56px; height: 56px;
  border-radius: var(--r-3);
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--line);
}

.sticky-cart__text {
  min-width: 0;
  overflow: hidden;
}
.sticky-cart__name {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: var(--ls-tight);
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sticky-cart__price {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-top: 2px;
}
.sticky-cart__price strong { color: var(--fg); font-weight: 700; }

.sticky-cart__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.sticky-cart .btn-add-cart {
  height: 44px;
  padding-inline: 1.25rem 0.5rem;
  font-size: 0.875rem;
}
.sticky-cart .btn-amazon {
  height: 44px;
  padding: 0.625rem 1rem;
  font-size: 0.75rem;
}

@media (max-width: 640px) {
  .sticky-cart__img { width: 44px; height: 44px; }
  .sticky-cart__price { display: none; }
  .sticky-cart .btn-amazon { display: none; }
  .sticky-cart__inner { gap: 0.75rem; padding: 0.625rem var(--s-4); }
}

/* ── VARIANT SWATCHES (couleur tente) ─────────────────────────── */
.variants {
  margin-block: var(--s-6);
  padding-bottom: var(--s-6);
  border-bottom: 1px solid var(--line);
}

.variants__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--s-3);
}
.variants__label strong {
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}

.swatch-row {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.swatch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem 0.5rem 0.5rem;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: border-color 200ms var(--ease-spring),
              transform 200ms var(--ease-spring),
              background 200ms var(--ease-spring);
  background: var(--bg-elevated);
  font-size: 0.8125rem;
  font-weight: 500;
}
.swatch:hover { transform: translateY(-1px); }
.swatch.is-active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.swatch.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.swatch__color {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.4);
  flex-shrink: 0;
}
.swatch__color--yellow {
  background: linear-gradient(135deg, #FFF 0%, #FFF 50%, #FCED3F 50%, #F2DD0E 100%);
}
.swatch__color--blue {
  background: linear-gradient(135deg, #FFF 0%, #FFF 50%, #2D7FE8 50%, #1A5DBF 100%);
}
.swatch__color--red {
  background: linear-gradient(135deg, #FFF 0%, #FFF 50%, #E83838 50%, #BF1F1F 100%);
}

.swatch__name { font-weight: 600; }
.swatch__sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--fg-muted);
}

/* ── VIDEO PLAYER ─────────────────────────────────────────────── */
.video-section {
  margin-block: var(--s-12);
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-6);
  overflow: hidden;
  background: var(--color-ink-900);
  box-shadow: var(--shadow-xl);
}

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

.video-frame__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(15,20,25,0) 50%, rgba(15,20,25,0.4) 100%);
  pointer-events: none;
  transition: opacity 300ms var(--ease-spring);
}
.video-frame.is-playing .video-frame__overlay { opacity: 0; }

.video-frame__play {
  pointer-events: auto;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-vert-500);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-900);
  cursor: pointer;
  transition: transform 200ms var(--ease-spring),
              box-shadow 200ms var(--ease-spring);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.video-frame__play:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.video-frame__play svg { width: 28px; height: 28px; margin-left: 3px; }

.video-frame__chip {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  background: rgba(15,20,25,0.7);
  backdrop-filter: blur(12px);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  border-radius: var(--r-pill);
  pointer-events: none;
}
.video-frame__chip::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-vert-500);
}

/* ── BREADCRUMB ────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 8rem;
  padding-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.breadcrumb a:hover { color: var(--accent-deep); }
.breadcrumb svg { width: 10px; height: 10px; opacity: 0.5; }

/* ── PRODUCT LAYOUT (sticky gallery + scroll right) ───────────── */
.product-page {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
  padding-block: var(--s-8) var(--section-py);
}

.product-gallery {
  position: sticky;
  top: 7rem;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

@media (max-width: 1024px) {
  .product-page { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
}

/* ── ZOOM IMAGE (adapté de 21st.dev ZoomImage) ────────────────── */
.zoom-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-6);
  background: var(--color-ink-100);
  aspect-ratio: 4 / 5;
  cursor: zoom-in;
  isolation: isolate;
  box-shadow: var(--shadow-lg), var(--inset-light);
}

.zoom-image__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-spring);
  transform-origin: 50% 50%;
  will-change: transform, transform-origin;
}

.zoom-image:hover .zoom-image__img { transform: scale(2.5); }

.zoom-image__hint {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(12px);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  border-radius: var(--r-pill);
  opacity: 1;
  transition: opacity 200ms var(--ease-spring);
  pointer-events: none;
}
.zoom-image:hover .zoom-image__hint { opacity: 0; }

/* Thumbnails grid */
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--color-ink-100);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 200ms var(--ease-spring),
              transform 200ms var(--ease-spring);
}
.thumb:hover { transform: translateY(-2px); }
.thumb.is-active { border-color: var(--color-vert-500); }
.thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 200ms;
}
.thumb:not(.is-active) img { opacity: 0.65; }
.thumb:hover img { opacity: 1; }

/* ── PRODUCT INFO COLUMN ──────────────────────────────────────── */
.product-info { padding-top: 0.5rem; }

.product-info__tag-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: var(--s-4);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  border-radius: var(--r-pill);
}
.tag--accent {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-deep);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, transparent);
}
.tag--neutral {
  background: var(--color-ink-100);
  color: var(--fg);
  border: 1px solid var(--line);
}
.tag--bestseller {
  background: var(--color-amber);
  color: var(--color-ink-900);
}

.product-info__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: var(--ls-tighter);
  margin-bottom: var(--s-4);
}

.product-info__sub {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.55;
  margin-bottom: var(--s-6);
}

.product-info__rating {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--s-6);
  padding: 0.5rem 0.875rem;
  background: var(--color-ink-50);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 0.8125rem;
}
.product-info__rating .stars svg { width: 14px; height: 14px; }
.product-info__rating strong { font-weight: 600; }
.product-info__rating a {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: color 150ms;
}
.product-info__rating a:hover { color: var(--accent-deep); }

/* ── PRICE BLOCK ──────────────────────────────────────────────── */
.price-block {
  padding: var(--s-6);
  border: 1px solid var(--line);
  border-radius: var(--r-6);
  background: var(--bg-elevated);
  margin-block: var(--s-6) var(--s-8);
  box-shadow: var(--inset-light);
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.price-current {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: var(--ls-tighter);
  color: var(--fg);
}

.price-old {
  font-size: 1.125rem;
  text-decoration: line-through;
  color: var(--fg-subtle);
}

.price-save {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-vert-700);
  background: var(--color-vert-100);
  padding: 0.25rem 0.625rem;
  border-radius: var(--r-pill);
}

.price-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--s-3);
  font-size: 0.8125rem;
  color: var(--fg-muted);
}
.price-meta__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-vert-500);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* ── QUANTITY + ADD TO CART ───────────────────────────────────── */
.add-to-cart-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-3);
  margin-bottom: var(--s-4);
}

.qty-control {
  display: inline-flex;
  align-items: center;
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  padding: 0.25rem;
  height: 52px;
}
.qty-btn {
  width: 36px; height: 36px;
  border-radius: var(--r-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: background 150ms var(--ease-spring),
              color 150ms var(--ease-spring);
}
.qty-btn:hover { background: var(--color-ink-100); }
.qty-btn:active { transform: scale(0.92); }
.qty-input {
  width: 40px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  background: transparent;
  border: none;
  -moz-appearance: textfield;
}
.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { appearance: none; margin: 0; }

.btn-add-cart {
  height: 52px;
  font-size: 0.9375rem;
  padding-inline: 1.5rem 0.5rem;
}

/* Amazon button */
.amazon-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-block: var(--s-4) var(--s-8);
  padding: var(--s-4);
  background: var(--color-ink-50);
  border-radius: var(--r-4);
  border: 1px dashed var(--line-strong);
}
.amazon-row__text {
  flex: 1;
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.4;
}
.amazon-row__text strong { color: var(--fg); font-weight: 600; display: block; margin-bottom: 2px; }

.btn-amazon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.125rem;
  background: #FF9900;
  color: #fff;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 0.8125rem;
  text-decoration: none;
  transition: transform 200ms var(--ease-spring),
              box-shadow 200ms var(--ease-spring);
  box-shadow: 0 4px 12px -2px rgba(255, 153, 0, 0.4);
  white-space: nowrap;
}
.btn-amazon:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(255, 153, 0, 0.5);
}

/* ── REASSURANCE BADGES ───────────────────────────────────────── */
.reassurance {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-3);
  margin-block: var(--s-4);
}

.reassurance__item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem;
  border-radius: var(--r-3);
  background: color-mix(in srgb, var(--accent) 4%, transparent);
  font-size: 0.8125rem;
  line-height: 1.3;
}
.reassurance__icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: var(--r-pill);
  background: var(--color-vert-100);
  color: var(--color-vert-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.reassurance__icon svg { width: 16px; height: 16px; stroke-width: 1.5; }
.reassurance__text strong { display: block; font-weight: 600; color: var(--fg); }
.reassurance__text small { color: var(--fg-muted); font-size: 0.75rem; }

/* ── SLIDING TABS (adapté 21st.dev SlidingTabs) ───────────────── */
.tabs {
  margin-top: var(--s-12);
  border-top: 1px solid var(--line);
}

.tabs__nav {
  position: sticky;
  top: 6rem;
  z-index: 5;
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  margin-block: var(--s-8) var(--s-12);
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  transition: backdrop-filter 350ms var(--ease-spring),
              background 350ms var(--ease-spring);
}
.tabs__nav::-webkit-scrollbar { display: none; }

/* Fade des bords sur mobile quand overflow */
@media (max-width: 768px) {
  .tabs__nav {
    -webkit-mask-image: linear-gradient(
      to right,
      transparent 0,
      black 24px,
      black calc(100% - 24px),
      transparent 100%
    );
            mask-image: linear-gradient(
      to right,
      transparent 0,
      black 24px,
      black calc(100% - 24px),
      transparent 100%
    );
  }
}

.tab-btn {
  position: relative;
  z-index: 2;
  padding: 0.625rem 1.125rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-radius: var(--r-pill);
  transition: color 250ms var(--ease-spring);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--fg); }
.tab-btn.is-active { color: var(--color-ink-50); }

.tab-indicator {
  position: absolute;
  z-index: 1;
  background: var(--color-ink-900);
  border-radius: var(--r-pill);
  transition: transform 500ms var(--ease-spring),
              width 500ms var(--ease-spring),
              height 500ms var(--ease-spring);
  top: 0; left: 0;
  pointer-events: none;
}

/* Tab panels */
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp 500ms var(--ease-spring); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── SPECS TABLE ──────────────────────────────────────────────── */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-3);
}

.spec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  gap: var(--s-4);
}
.spec-row__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.spec-row__value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--fg);
  text-align: right;
}

@media (max-width: 640px) {
  .specs-grid { grid-template-columns: 1fr; }
  .reassurance { grid-template-columns: 1fr; }
}

/* ── FEATURE BIG (Pourquoi choisir) ───────────────────────────── */
.why-list { display: flex; flex-direction: column; gap: var(--s-4); }

.why-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--s-4);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--line);
}
.why-row:last-child { border-bottom: 0; }

.why-num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: var(--ls-wider);
  color: var(--color-vert-700);
  padding-top: 0.25rem;
}

.why-row h4 {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 500;
  letter-spacing: var(--ls-tight);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.why-row p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* ── AVIS GRID ────────────────────────────────────────────────── */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
}
@media (max-width: 768px) { .reviews-grid { grid-template-columns: 1fr; } }

.review-card {
  padding: var(--s-6);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-4);
}
.review-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-3);
}
.review-card__stars svg { width: 13px; height: 13px; color: var(--color-amber); }
.review-card__date {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--ls-wide);
  color: var(--fg-subtle);
  text-transform: uppercase;
}
.review-card__text {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--fg);
  margin-bottom: var(--s-4);
}
.review-card__author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--s-3);
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
}
.review-card__name { font-weight: 600; color: var(--fg); }
.review-card__verified {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-vert-700);
}

/* ── GALLERY EN ACTION ────────────────────────────────────────── */
.action-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  margin-top: var(--s-8);
}
.action-gallery__item {
  aspect-ratio: 4 / 5;
  border-radius: var(--r-4);
  overflow: hidden;
  cursor: pointer;
}
.action-gallery__item:nth-child(1) { grid-column: span 2; grid-row: span 2; aspect-ratio: 1 / 1; }
.action-gallery__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.5s var(--ease-out-soft);
}
.action-gallery__item:hover img { transform: scale(1.05); }

@media (max-width: 640px) {
  .action-gallery { grid-template-columns: repeat(2, 1fr); }
  .action-gallery__item:nth-child(1) { grid-column: span 2; grid-row: auto; aspect-ratio: 4 / 5; }
}