.product-back {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 14px;
  padding: 9px 13px;
  border-radius: 14px;
  text-decoration: none;
  color: #ffffff;
  font-size: 14px;
  font-weight: 800;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
}

.product-detail-card {
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(180deg, #111a2d 0%, #15223a 100%);
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 16px 36px rgba(0,0,0,0.24);
}

.product-detail-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1.1;
  background: radial-gradient(circle at top, #263b77, #0f1728);
  overflow: hidden;
}

.product-detail-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-slider-badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255,255,255,0.88);
  color: #0f1728;
  font-size: 13px;
  font-weight: 900;
}

.product-detail-body {
  padding: 18px;
}

.product-detail-price-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.product-detail-price {
  color: #f3f6fd;
  font-size: 28px;
  font-weight: 1000;
}

.product-detail-old-price {
  color: #8fa1c2;
  font-size: 17px;
  text-decoration: line-through;
  font-weight: 700;
}

.product-detail-title {
  margin: 0 0 12px;
  color: #f3f7ff;
  font-size: 22px;
  line-height: 1.2;
  font-weight: 900;
}

.product-detail-description {
  margin: 0 0 16px;
  color: #98a9c7;
  font-size: 15px;
  line-height: 1.5;
}

.product-benefits {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.product-benefit {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: #d9e4fb;
  font-size: 14px;
  font-weight: 700;
}

.product-pay-button {
  min-height: 48px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;

  border: 1px solid rgba(255,255,255,0.07);
  background: linear-gradient(180deg, rgba(88,96,224,0.94), rgba(104,68,224,0.94));
  color: #ffffff;
  font-size: 15px;
  font-weight: 900;

  box-shadow:
    0 8px 16px rgba(81,67,194,0.20),
    inset 0 1px 0 rgba(255,255,255,0.10);
}

@media (max-width: 520px) {
  .product-detail-card {
    border-radius: 24px;
  }

  .product-detail-body {
    padding: 16px;
  }

  .product-detail-price {
    font-size: 24px;
  }

  .product-detail-title {
    font-size: 20px;
  }
}

@media (min-width: 900px) {

  .product-detail-card {
    display: grid;
    grid-template-columns: 1fr 1fr;

    align-items: stretch;

    overflow: hidden;
  }

  .product-detail-image-wrap {
    aspect-ratio: auto;
    min-height: 100%;
  }

  .product-detail-image {
    height: 100%;
  }

  .product-detail-body {
    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: 28px;
  }

  .product-detail-title {
    font-size: 28px;
  }

  .product-detail-description {
    font-size: 16px;
  }

  .product-pay-button {
    margin-top: 10px;
  }
}