:root {
  --preto: #111;
  --cinza: #666;
  --cinza-claro: #f2f2f2;
  --borda: #e2e2e2;
  --vermelho: #d0342c;
  --verde: #1f8a3d;
  --branco: #fff;
  --fonte: 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--fonte);
  color: var(--preto);
  background: var(--branco);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--borda);
  padding: 16px 0;
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
.logo {
  font-weight: 700;
  font-size: 20px;
  color: var(--preto);
  letter-spacing: 1px;
  text-align: center;
  cursor: default;
  user-select: none;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--preto);
  background: none;
  border: none;
  text-decoration: none;
  cursor: pointer;
  position: relative;
}
.icon-btn:hover {
  background: var(--cinza-claro);
}
.search-icon {
  justify-self: start;
}
.cart-icon {
  justify-self: end;
}
.cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--preto);
  color: var(--branco);
  font-size: 10px;
  font-weight: 700;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Product page layout */
.product-page {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  padding: 40px 20px;
}
@media (max-width: 800px) {
  .product-page { grid-template-columns: 1fr; }
}

.gallery-main img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--borda);
}
.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.thumb {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.7;
}
.thumb.active, .thumb:hover {
  border-color: var(--preto);
  opacity: 1;
}

.product-info h1 {
  font-size: 26px;
  margin-bottom: 6px;
}
.rating {
  color: #f5a623;
  font-size: 14px;
  margin-bottom: 16px;
}
.rating span { color: var(--cinza); margin-left: 6px; }

.price-block {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}
.price-old {
  text-decoration: line-through;
  color: var(--cinza);
  font-size: 15px;
}
.price-new {
  font-size: 24px;
  font-weight: 700;
}
.badge-discount {
  background: var(--vermelho);
  color: var(--branco);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
}

.option-group {
  margin-bottom: 20px;
}
.option-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
}
.swatches {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.swatch {
  border: 1px solid var(--borda);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
}
.swatch input { display: none; }
.swatch.selected {
  border-color: var(--preto);
  background: var(--cinza-claro);
}

.size-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  max-width: 320px;
}
.size-box {
  text-align: center;
  border: 1px solid var(--borda);
  border-radius: 4px;
  padding: 8px 0;
  font-size: 13px;
  cursor: pointer;
}
.size-box input { display: none; }
.size-box.selected {
  border-color: var(--preto);
  background: var(--cinza-claro);
}
.size-guide-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--cinza);
  text-decoration: underline;
}

.trust-badges {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--cinza-claro);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
}
.trust-badges strong { font-size: 14px; }
.trust-badges p { margin: 2px 0 0; font-size: 12px; color: var(--cinza); }

.qty-buy {
  display: flex;
  gap: 12px;
  align-items: center;
}
.qty-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--borda);
  border-radius: 4px;
}
.qty-selector button {
  width: 36px;
  height: 42px;
  border: none;
  background: none;
  font-size: 18px;
  cursor: pointer;
}
.qty-selector input {
  width: 40px;
  text-align: center;
  border: none;
  font-size: 15px;
}
.btn-buy {
  flex: 1;
  height: 46px;
  background: var(--preto);
  color: var(--branco);
  border: none;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.btn-buy:hover { opacity: 0.9; }

.perks {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  font-size: 11px;
  color: var(--cinza);
  letter-spacing: 0.5px;
}

.description-block {
  border-top: 1px solid var(--borda);
  padding: 32px 20px;
}
.description-block h2 { font-size: 18px; }
.description-block p { color: var(--cinza); line-height: 1.6; }

/* Reviews / social proof */
.reviews-block {
  border-top: 1px solid var(--borda);
  padding: 32px 20px 48px;
}
.reviews-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}
.reviews-header h2 { font-size: 18px; margin: 0; }
.reviews-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--cinza);
}
.reviews-stars { color: #f5a623; letter-spacing: 1px; }
.reviews-summary strong { color: var(--preto); }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 800px) {
  .reviews-grid { grid-template-columns: 1fr; }
}

.review-card {
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.review-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.review-stars { color: #f5a623; font-size: 13px; letter-spacing: 1px; }
.review-date { font-size: 12px; color: var(--cinza); }
.review-title { font-size: 14px; margin: 0; }
.review-text { font-size: 13px; color: var(--cinza); line-height: 1.6; margin: 0; }
.review-author {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 12px;
}
.review-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--cinza-claro);
  color: var(--preto);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  flex-shrink: 0;
}
.verified-badge {
  color: var(--verde);
  font-size: 11px;
  margin-left: 4px;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
  z-index: 999;
}
.modal-box {
  background: var(--branco);
  padding: 24px;
  border-radius: 8px;
  max-width: 420px;
  width: 90%;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
}
.modal-box img { width: 100%; border-radius: 6px; margin-top: 12px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--borda);
  margin-top: 40px;
  padding: 32px 0 16px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-col h4 { font-size: 14px; margin-bottom: 8px; }
.footer-col p, .footer-col a {
  display: block;
  font-size: 13px;
  color: var(--cinza);
  text-decoration: none;
  margin-bottom: 4px;
}
.copyright {
  text-align: center;
  font-size: 12px;
  color: var(--cinza);
  margin-top: 24px;
}