* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background: #0b0b0b;
  color: #fff;
}

/* PRODUCT */
.product-wrap {
  max-width: 1300px;
  margin: auto;
  padding: 120px 5%;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
}

/* GALLERY */
.gallery {
  display: flex;
  gap: 20px;
}

.thumbs img {
  width: 70px;
  opacity: .5;
  cursor: pointer;
  margin-bottom: 10px;
}

.thumbs img:hover {
  opacity: 1;
}

.main-img img {
  width: 100%;
  border-radius: 8px;
}

/* INFO */
.info h1 {
  font-size: 34px;
  margin: 10px 0;
}

.info h1 span {
  display: block;
  font-size: 14px;
  opacity: .6;
}

.code {
  opacity: .5;
  font-size: 13px;
}

.price {
  margin: 20px 0;
}

.price del {
  opacity: .5;
  margin-right: 10px;
}

.price strong {
  font-size: 28px;
  color: #b11226;
}

.price small {
  display: block;
  font-size: 13px;
}

/* SIZE */
.sizes {
  display: flex;
  gap: 12px;
  margin: 15px 0;
}

.sizes button {
  padding: 12px 18px;
  background: #111;
  border: 1px solid #333;
  color: #fff;
  cursor: pointer;
}

.sizes button.active {
  background: #b11226;
  border-color: #b11226;
}

.sizes button:disabled {
  opacity: .3;
}

/* STOCK */
.stock {
  font-size: 14px;
  margin-bottom: 15px;
}

.low {
  color: #b11226;
}

/* QTY */
.qty {
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 25px 0;
}

.qty button {
  padding: 8px 14px;
  background: #111;
  border: 1px solid #333;
  color: #fff;
}

/* CTA */
.cart {
  width: 100%;
  padding: 18px;
  background: #b11226;
  border: none;
  color: #fff;
  font-size: 15px;
  letter-spacing: 1px;
}

.whatsapp {
  margin-top: 12px;
  width: 100%;
  padding: 14px;
  background: #111;
  border: 1px solid #333;
  color: #fff;
}

/* PAYMENT */
.payment {
  margin-top: 25px;
  font-size: 13px;
  opacity: .7;
}

/* TABS */
.tabs {
  display: flex;
  justify-content: center;
  gap: 25px;
  margin-top: 40px;
}

.tabs button {
  background: none;
  border: none;
  color: #fff;
  opacity: .6;
  font-size: 14px;
}

.tabs button.active {
  opacity: 1;
  border-bottom: 2px solid #b11226;
}

/* TAB CONTENT */
.tab-content {
  max-width: 900px;
  margin: 40px auto;
  font-size: 14px;
}

.tab {
  display: none;
}

.tab.active {
  display: block;
}

.row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #222;
}

/* SIMILAR */
.similar {
  padding: 80px 5%;
}

.similar-row {
  display: flex;
  gap: 20px;
}

.similar img {
  width: 180px;
  border-radius: 6px;
}

/* MOBILE */
@media(max-width: 900px) {
  .product-wrap {
    grid-template-columns: 1fr;
  }

  .gallery {
    flex-direction: column-reverse;
  }

  .thumbs {
    display: flex;
    gap: 10px;
  }
}