.btn-pdf{text-align:center;margin:24px 0}.pdf-download-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff;font-weight:600;font-size:1rem;border-radius:8px;text-decoration:none;box-shadow:0 4px 12px #dc26264d;transition:all .3s ease}.pdf-download-btn:hover{background:linear-gradient(135deg,#b91c1c,#991b1b);transform:translateY(-2px);box-shadow:0 6px 16px #dc262666}.pdf-download-btn:active{transform:translateY(0)}.pdf-download-btn i{font-size:1.1rem}.product-stock-indicator{padding:4px 12px;border-radius:4px;font-size:.75rem;font-weight:600;white-space:nowrap}.product-stock-indicator.in-stock{background:#d1fae5;color:#065f46}.product-stock-indicator.out-stock{background:#fee2e2;color:#991b1b}.product-stock-indicator.on-order{background:#dbeafe;color:#1e40af}.product-author-link{display:block;font-size:.875rem;color:#6b7280;text-decoration:none;margin-bottom:16px;transition:color .3s}.product-author-link:hover{color:var(--primary)}.product-author-link strong{color:#374151}.no-image{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);opacity:.2;color:#9ca3af}.no-image-small{width:100%;height:200px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);opacity:.2}.product-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}.btn-view-product{padding:12px;border-radius:8px;border:2px solid var(--primary);background:#fff;color:var(--primary);font-weight:600;text-decoration:none;text-align:center;transition:all .3s;cursor:pointer}.btn-view-product:hover{background:var(--primary);color:#fff}.catalog-header{position:relative;height:400px;display:flex;align-items:center;justify-content:center;overflow:hidden}.catalog-bg{position:absolute;inset:0;z-index:1;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%)}.catalog-bg-image{background-size:cover;background-position:center}.catalog-overlay{position:absolute;inset:0;z-index:2;background:#ffffff4d}.catalog-header-content{position:relative;z-index:10;text-align:center;padding:48px 24px;max-width:900px;color:var(--text-header)}.catalog-header-title{font-size:4rem;font-weight:900;margin-bottom:32px;text-shadow:0 4px 20px rgba(0,0,0,.2);line-height:1.1}.catalog-header-description{font-size:2.5rem;opacity:.95;text-shadow:0 2px 10px rgba(0,0,0,.2);line-height:1.6}.catalog-header-description p{font-size:2rem}.shop-hero{background:linear-gradient(135deg,#1e3a5f,#2563eb 60%,#10b981);border-radius:16px;padding:48px 56px;margin-bottom:2rem;position:relative;overflow:hidden;color:#fff}.shop-hero:before{content:"✦";position:absolute;top:-20px;right:40px;font-size:180px;opacity:.06;line-height:1}.shop-hero:after{content:"";position:absolute;bottom:-60px;right:-60px;width:240px;height:240px;background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 70%);border-radius:50%}.shop-hero-title{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:14px;line-height:1.2}.shop-hero-intro{font-size:1rem;color:#ffffffe6;line-height:1.7;margin-bottom:0;font-weight:400;max-width:700px}.shop-hero-about{display:none}@media(max-width:768px){.shop-hero{padding:28px 24px}.shop-hero-title{font-size:1.6rem}}.btn-add-cart{padding:12px;border-radius:8px;border:none;background:var(--button);color:#fff;font-weight:600;cursor:pointer;transition:background .3s}.btn-add-cart:hover:not(:disabled){background:var(--button-hover)}.btn-add-cart:disabled{opacity:.5;cursor:not-allowed}.back-button{position:sticky;top:0;z-index:100;background:#fff;padding:16px 0;box-shadow:0 2px 8px #0000000d}.back-button a{display:inline-flex;align-items:center;gap:8px;color:#374151;text-decoration:none;font-weight:600;transition:color .3s}.back-button a:hover{color:var(--primary)}.no-results{text-align:center;padding:80px 24px;color:#9ca3af;grid-column:1 / -1}.no-results-icon{font-size:4rem;margin-bottom:16px}@media(max-width:768px){.product-price-row{flex-wrap:wrap;gap:8px}.product-price,.current-price{font-size:1.25rem}.mobile-menu-toggle{display:block}.header-main{flex-wrap:wrap;padding:10px 16px}.search-bar{order:3;max-width:100%;width:100%;margin-top:8px}.nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 8px 24px #00000026;z-index:200}.nav.mobile-open{display:block}.nav-container{flex-direction:column;gap:0;padding:0;overflow:visible}.nav-container>a,.nav-container>.nav-dropdown>.dropdown-toggle{padding:14px 20px;border-bottom:1px solid var(--border)}.nav-dropdown .dropdown-menu{position:static;box-shadow:none;border-radius:0;padding:0;background:#f9fafb}.nav-dropdown .dropdown-menu a{padding:12px 20px 12px 36px;border-bottom:1px solid var(--border)}.nav-dropdown:hover .dropdown-menu{display:none}.nav-dropdown.open .dropdown-menu{display:block}.cart-sidebar{width:100%;right:-100%}.controls{flex-direction:column}.products-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}}