.main-content {
  margin-bottom: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.left {
  flex: 3;
}

.left img {
  width: 100%;
  border-radius: 10px;
  object-fit: cover;
}

.right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Right images stacked */

.right img {
  width: 80%;
  object-fit: contain;
  border-radius: 10px;
  display: block;
}

.related-title {
  color: #ffffff;
  font-weight: 700;
  text-align: center;
  margin: 40px 0 24px;
  padding: 0 16px;
  font-size: clamp(20px, 4vw, 36px);
  letter-spacing: 1px;
}

/* Thumbnail Swiper */

.thumb-swiper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 20px;
}

.thumb-swiper .swiper-slide {
  display: flex;
  justify-content: center;
  align-items: center;
}

.thumb-box img {
  width: auto;
  max-width: 100%;
  height: 100%;
  cursor: pointer;
  user-select: none;
  -webkit-user-drag: none;
}

/* Thumbnail arrows */

.thumb-prev, .thumb-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0,0,0,.2);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10;
}

/* Product info */

.product-title {
  font-size: 1.5rem;
  margin-top: 10px;
  font-weight: bold;
}

.product-desc {
  font-size: 1rem;
  margin-top: 5px;
}

.thumb-box {
  border: 2px solid transparent;
  padding: 4px;
  cursor: pointer;
  transition: border-color .2s ease;
}

.thumb-box.active {
  border-color: #0d6efd;
}