* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
       background: #f7f8fa; color: #111827; line-height: 1.6; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.site-header { background: #111827; color: #fff; padding: 14px 0; }
.brand { font-weight: 700; font-size: 17px; letter-spacing: .02em; text-decoration: none; color: #fff; }
.brand:hover { color: #cbd5e1; }
.site-header .container { display: flex; align-items: center; gap: 16px; }
.site-header nav { margin-left: auto; }
.site-header nav a { color: #d1d5db; text-decoration: none; font-size: 14px; margin-left: 16px; }
.site-header nav a:hover { color: #fff; }

main.container { padding: 36px 0 56px; }

/* Homepage */
h1 { font-size: 28px; margin-bottom: 6px; }
.page-sub { color: #6b7280; margin-bottom: 28px; font-size: 15px; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.product-card { background: #fff; border-radius: 14px; overflow: hidden;
                box-shadow: 0 6px 24px rgba(0,0,0,.06); display: flex; flex-direction: column;
                transition: transform .15s ease, box-shadow .15s ease; }
.product-card:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(0,0,0,.10); }
.product-card .img { width: 100%; aspect-ratio: 4/3; background: #eef0f2; }
.product-card .img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-card .body { padding: 16px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.product-card .name { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.product-card .sku { font-size: 12px; color: #6b7280; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 6px; }
.product-card .price { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.product-card .price.pending { color: #b45309; font-size: 14px; font-weight: 600; }
.product-card .desc { font-size: 14px; color: #4b5563; margin-bottom: 14px; flex: 1; }
.product-card .actions { display: flex; gap: 10px; }
.btn { display: inline-block; text-align: center; padding: 11px 18px; border-radius: 8px;
       font-weight: 600; font-size: 14px; text-decoration: none; border: none; cursor: pointer; }
.btn-dark { background: #111827; color: #fff; }
.btn-dark:hover { background: #000; }
.btn-outline { background: #fff; color: #111827; border: 1px solid #d1d5db; }
.btn-outline:hover { background: #f3f4f6; }

/* Product page */
.crumb { font-size: 13px; color: #6b7280; margin-bottom: 18px; }
.crumb a { color: #6b7280; text-decoration: none; }
.crumb a:hover { color: #111827; }
.product-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; background: #fff;
                border-radius: 16px; padding: 28px; box-shadow: 0 6px 24px rgba(0,0,0,.06); margin-bottom: 28px; }
.product-hero .hero-img { border-radius: 12px; overflow: hidden; }
.product-hero .hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 4/3; }
.hero-name { font-size: 28px; font-weight: 800; margin-bottom: 6px; }
.hero-sku { font-size: 13px; color: #6b7280; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 10px; }
.hero-price { font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.price-note { font-size: 12px; color: #b45309; margin-bottom: 12px; }
.hero-desc { font-size: 15px; color: #4b5563; margin-bottom: 18px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.section { background: #fff; border-radius: 16px; padding: 24px 28px; margin-bottom: 20px;
           box-shadow: 0 6px 24px rgba(0,0,0,.06); }
.section h2 { font-size: 18px; margin-bottom: 12px; }
.section p, .section li { font-size: 15px; color: #374151; }
.section ul { padding-left: 20px; margin-bottom: 8px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.gallery img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 10px; }
.data-required { color: #b45309; font-weight: 600; }

.site-footer { background: #fff; border-top: 1px solid #e5e7eb; padding: 18px 0; margin-top: 12px; }
.site-footer p { font-size: 12px; color: #9ca3af; text-align: center; }

@media (max-width: 768px) {
  .product-hero { grid-template-columns: 1fr; padding: 20px; }
}
@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .site-header nav a { margin-left: 10px; }
  .btn { width: 100%; }
}