.sf-product-info {
  display: block;
  font-family: 'DM Sans', sans-serif;
}

.sf-product-info .header-container {
  position: relative;

  min-height: 260px;
  padding-top: 120px;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.sf-product-info .header-container::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,12,18,.35) 0%, rgba(17,19,24,1) 100%);
}
.sf-product-info .header-details {
  position: relative;
  z-index: 2;
  padding: 0 48px 32px;
}
.sf-product-info .header-details h1 {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: #fff;
  margin: 0;
}

.sf-product-info .page-container {
  padding: 40px 48px 80px;
  max-width: 1280px;
  margin: 0 auto;
}

.sf-product-info .product-details-v2 {
  display: grid;

  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 32px;
  align-items: start;
}

.sf-product-info .details-section {
  margin-bottom: 24px;
  border: 1px solid #e6e6e6;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.sf-product-info .details-section > .title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #1a1d25;
  background: #f5f5f5;
  border-bottom: 1px solid #e6e6e6;
}
.sf-product-info .details-section > .title svg {
  color: #c00;
}

.sf-product-info .details-section > .details {
  padding: 18px;
  color: #333;
  font-size: .95rem;
  line-height: 1.6;
}
.sf-product-info .details-section > .details p {
  margin: 0;
}

.sf-product-info .gallery {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sf-product-info .gallery-main {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: #f1f1f1;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  border: 1px solid #e6e6e6;
  border-radius: 6px;
  cursor: zoom-in;
  overflow: hidden;
  transition: border-color 0.2s;
}

.sf-product-info .gallery-main:hover {
  border-color: #c00;
}

.sf-product-info .gallery-hint {
  position: absolute;
  bottom: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 11px;
  border-radius: 14px;
  pointer-events: none;
  letter-spacing: 0.3px;
}

.sf-product-info .gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #e6e6e6;
  color: #222;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.15s;
}

.sf-product-info .gallery-nav:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.05);
}

.sf-product-info .gallery-nav.prev { left: 12px; }
.sf-product-info .gallery-nav.next { right: 12px; }

.sf-product-info .gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}

.sf-product-info .thumb {
  aspect-ratio: 1 / 1;
  background-color: #f1f1f1;
  background-size: cover;
  background-position: center;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s, border-color 0.15s;
}

.sf-product-info .thumb:hover  { opacity: 1; }
.sf-product-info .thumb.active { opacity: 1; border-color: #c00; }

.sf-product-info .gallery-empty {
  padding: 30px;
  text-align: center;
  color: #888;
  background: #fafafa;
  border-radius: 6px;
}

.sf-product-info .videos {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sf-product-info .video video {
  width: 100%;
  border-radius: 6px;
  background: #000;
}

.sf-product-info .product-hero-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: #fafafa;
  border: 1px solid #e6e6e6;
  border-radius: 6px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.sf-product-info .hero-text h1 {
  margin: 0 0 4px;
  font-size: 28px;
}

.sf-product-info .hero-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.sf-product-info .price-tag {
  font-size: 24px;
  font-weight: 700;
  color: #c00;
}

.sf-product-info .price-sub {
  color: #888;
  font-size: 13px;
}

.sf-product-info .hero-cta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.sf-product-info .hero-cta a { text-decoration: none; }
.sf-product-info .hero-cta button {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: .9rem;
  border: none;
  border-radius: 8px;
  padding: 12px 22px;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background .2s;
}
.sf-product-info .hero-cta button.-red {
  background: #ff4d2e;
  color: #fff;
}
.sf-product-info .hero-cta button.-red:hover {
  background: #e03a1c;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255,77,46,.25);
}
.sf-product-info .hero-cta button.-black {
  background: #22262f;
  color: #fff;
}
.sf-product-info .hero-cta button.-black:hover {
  background: #1a1d25;
  transform: translateY(-1px);
}

.sf-product-info .security-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.sf-product-info .security-features .feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: #f7f7f7;
  border: 1px solid #ececec;
  border-radius: 6px;
}
.sf-product-info .security-features .feature .icon {
  display: inline-flex;
  color: #c00;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.sf-product-info .security-features .feature .desc {
  font-size: .88rem;
  color: #333;
}

.sf-product-info .pricing {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sf-product-info .pricing .price {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: #f7f7f7;
  border: 1px solid #ececec;
  border-radius: 6px;
}
.sf-product-info .pricing .price strong { color: #1a1d25; }

.sf-product-info .lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: sfFadeIn 0.2s ease-out;
}

@keyframes sfFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.sf-product-info .lb-close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.sf-product-info .lb-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.sf-product-info .lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.sf-product-info .lb-nav:hover {
  background: rgba(255, 255, 255, 0.3);
}

.sf-product-info .lb-prev { left: 20px; }
.sf-product-info .lb-next { right: 20px; }

.sf-product-info .lb-stage {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.sf-product-info .lb-image {
  max-width: 88vw;
  max-height: 82vh;
  object-fit: contain;
  cursor: zoom-in;
  transition: transform 0.2s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.sf-product-info .lb-image.zoomed {
  transform: scale(2.5);
  cursor: zoom-out;
}

.sf-product-info .lb-counter {
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  letter-spacing: 0.3px;
}

@media (max-width: 900px) {
  .sf-product-info .product-details-v2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sf-product-info .page-container { padding: 24px 20px 60px; }
  .sf-product-info .header-details { padding: 0 20px 28px; }
  .sf-product-info .header-details h1 { font-size: 2.2rem; }

  .sf-product-info .product-hero-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .sf-product-info .gallery-nav {
    width: 32px;
    height: 32px;
  }

  .sf-product-info .lb-nav {
    width: 40px;
    height: 40px;
    font-size: 26px;
  }

  .sf-product-info .lb-prev { left: 8px; }
  .sf-product-info .lb-next { right: 8px; }
}