* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; line-height: 1.6; color: #333; background: #f8f9fa; }
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.breadcrumb { padding: 15px 0; font-size: 14px; color: #666; }
.breadcrumb a { color: #0066cc; text-decoration: none; }
.breadcrumb span { margin: 0 8px; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; background: white; border-radius: 12px; padding: 30px; box-shadow: 0 2px 10px rgba(0,0,0,0.08); }
@media (max-width: 768px) { .product-detail { grid-template-columns: 1fr; } }
.product-image img { width: 100%; border-radius: 8px; object-fit: cover; }
.product-info h1 { font-size: 28px; margin-bottom: 10px; color: #1a1a1a; }
.product-brand { display: inline-block; background: #0066cc; color: white; padding: 4px 12px; border-radius: 4px; font-size: 12px; font-weight: 600; margin-bottom: 15px; }
.product-price { font-size: 32px; font-weight: 700; color: #0066cc; margin: 20px 0; }
.product-description { color: #555; margin-bottom: 25px; }
.features { margin: 25px 0; }
.features li { margin: 8px 0; padding-left: 25px; position: relative; list-style: none; }
.features li::before { content: "✓"; position: absolute; left: 0; color: #28a745; font-weight: bold; }
.cta-btn { display: inline-block; background: #0066cc; color: white; padding: 15px 35px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 16px; transition: background 0.3s; }
.cta-btn:hover { background: #0052a3; }
.back-link { margin-top: 30px; }
.back-link a { color: #666; text-decoration: none; }