/* Reset & Body */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  color: #172033;
  background-color: #fff7ed;
  line-height: 1.55;
}
a { color: #c2410c; text-decoration: none; }

/* 1. Header */
header.shop-header {
  background: #c2410c;
  color: #ffffff;
  padding: 16px 24px;
}
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}
.shop-logo h1 { margin: 0; font-size: 24px; }
.shop-logo p { margin: 2px 0 0; font-size: 13px; color: #ffedd5; }
.badge-freeship {
  display: inline-block;
  background: #fed7aa;
  color: #9a3412;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-right: 10px;
}
.cart-pill {
  display: inline-block;
  background: #9a3412;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 6px;
}

/* 2. Nav Flexbox */
nav.cat-nav {
  background: #9a3412;
  padding: 0 20px;
}
ul.nav-links {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 10px 0;
}
ul.nav-links li a {
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 4px;
}
ul.nav-links li a:hover {
  background: #c2410c;
}

/* 3. Bố cục chính chia 2 cột bằng Flexbox */
main.shop-main-layout {
  padding: 24px;
  max-width: 1280px;
  margin: 0 auto;
}
.shop-grid-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}
.col-category-tree {
  flex: 1 1 240px;
  background: #ffffff;
  border: 1px solid #fed7aa;
  border-radius: 8px;
  padding: 18px;
}
.col-category-tree h3 { margin: 0 0 12px; font-size: 16px; color: #9a3412; }
.cat-definition-list dt { font-weight: 700; color: #c2410c; margin-top: 10px; font-size: 14px; }
.cat-definition-list dd { margin: 4px 0 0 16px; font-size: 13px; color: #475569; }

.col-product-feed {
  flex: 3.5 1 660px;
}

/* Flash Sale Banner */
.deal-strip-banner {
  background: linear-gradient(135deg, #c2410c, #ea580c);
  color: #ffffff;
  padding: 18px 22px;
  border-radius: 8px;
  margin-bottom: 20px;
}
.deal-strip-banner h2 { margin: 6px 0; font-size: 20px; }
.sale-badge {
  display: inline-block;
  background: #fef08a;
  color: #854d0e;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}
.countdown-tag {
  background: #ffffff;
  color: #9a3412;
  font-weight: 700;
  font-size: 12.5px;
  padding: 2px 8px;
  border-radius: 4px;
}

/* 6 Thẻ sản phẩm Flexbox không bằng nhau */
.products-flex-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: stretch;
  gap: 16px;
}
.product-item {
  background: #ffffff;
  border: 1px solid #fed7aa;
  border-radius: 8px;
  padding: 14px 16px;
  box-shadow: 0 1px 4px rgba(194, 65, 12, 0.06);
}
.product-item.p1 { flex: 2.8 1 340px; }
.product-item.p2 { flex: 1 1 160px; }
.product-item.p3 { flex: 1.4 1 200px; align-self: flex-end; }
.product-item.p4 { flex: 2 1 260px; }
.product-item.p5 { flex: 1.1 1 170px; }
.product-item.p6.special-flash {
  flex: 2.6 1 310px;
  order: -1; /* Đổi thứ tự hiển thị */
  background: #fff1f2;
  border-color: #fecdd3;
}
.prod-badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 6px;
}
.mega-badge { background: #fee2e2; color: #b91c1c; }
.flash-badge-pill { background: #dc2626; color: #ffffff; }

.product-item h3 { margin: 0 0 6px; font-size: 15px; color: #1e293b; }
.price-line { margin: 0 0 6px; font-size: 14px; }
.price-line del { color: #94a3b8; margin-right: 6px; }
.price-line ins { color: #dc2626; font-weight: 700; text-decoration: none; }
.specs-text { margin: 0; font-size: 12.5px; color: #64748b; }

/* Display none */
.hidden-voucher-drawer { display: none; }

/* 4. Footer 4 cột */
footer.shop-footer {
  background: #7c2d12;
  color: #ffedd5;
  padding: 30px 24px;
  margin-top: 36px;
}
.footer-layout {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto;
}
.shop-col { flex: 1 1 200px; }
.shop-col h4 { margin: 0 0 10px; font-size: 15px; color: #ffffff; }
.shop-col ul { list-style: none; margin: 0; padding: 0; }
.shop-col ul li { margin-bottom: 6px; font-size: 13px; color: #fed7aa; }
.shop-col p { margin: 0; font-size: 13px; color: #fed7aa; }