.product-tabs-section {
.product-tabs__header {
  border-bottom: 1px solid #e5e5e5;
  margin-bottom: 30px;
}

.product-tabs__nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  -webkit-overflow-scrolling: touch;
}

.product-tabs__nav-item {
  flex: 0 0 auto;
}

.product-tabs__nav-button {
  background: transparent;
  border: none;
  color: #6b6b6b;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 15px 20px;
  position: relative;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.product-tabs__nav-button:hover {
  color: #000;
}

.product-tabs__nav-button.is-active {
  color: #000;
  font-weight: 600;
}

.product-tabs__nav-button.is-active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #000;
}

.product-tabs__panel {
  display: none;
  padding: 20px 0;
}

.product-tabs__panel.is-active {
  display: block;
}

/* Responsive styles */
@media screen and (max-width: 767px) {
  .product-tabs__nav-button {
    padding: 12px 15px;
    font-size: 12px;
  }
  
  .product-tabs {
    margin: 40px 0;
  }
}
}