.header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}.header-inner{display:flex;align-items:center;gap:2rem;height:60px}.logo{font-size:1.25rem;font-weight:700;color:var(--primary);text-decoration:none;white-space:nowrap}.logo:hover{text-decoration:none}.nav{display:flex;gap:1.25rem;flex:1}.nav a{color:var(--text);font-size:.9rem;font-weight:500;text-decoration:none}.nav a:hover{color:var(--primary)}.header-actions{display:flex;align-items:center;gap:1rem}.cart-btn{position:relative;font-size:1.4rem;text-decoration:none;color:var(--text);padding:.25rem}.cart-btn:hover{text-decoration:none}.cart-badge{position:absolute;top:-6px;right:-8px;background:var(--danger);color:#fff;border-radius:9999px;font-size:.65rem;font-weight:700;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;padding:0 3px}.user-menu{display:flex;align-items:center;gap:.75rem}.user-name{font-size:.9rem;font-weight:500;color:var(--text)}.auth-links{display:flex;gap:.5rem}@media (max-width: 768px){.nav{display:none}.header-inner{justify-content:space-between}}.footer{background:#1e293b;color:#94a3b8;margin-top:auto}.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;padding:2.5rem 1rem;gap:2rem}.footer-logo{font-size:1.25rem;font-weight:700;color:#fff}.footer-tagline{margin-top:.5rem;font-size:.85rem}.footer-links{display:flex;gap:3rem}.footer-col{display:flex;flex-direction:column;gap:.5rem}.footer-col h4{color:#fff;font-size:.875rem;font-weight:600;margin-bottom:.25rem}.footer-col a{color:#94a3b8;font-size:.875rem;text-decoration:none}.footer-col a:hover{color:#fff;text-decoration:none}.footer-bottom{border-top:1px solid #334155;padding:1rem;font-size:.8rem;text-align:center}@media (max-width: 768px){.footer-inner{flex-direction:column}.footer-links{gap:1.5rem;flex-wrap:wrap}}@media (max-width: 767px){._booksAddToCart_1mwwb_7{display:none}}.product-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s}.product-card:hover{box-shadow:var(--shadow-md)}.product-card-image-link{display:block;overflow:hidden}.product-card-image{width:100%;height:200px;object-fit:cover;display:block;background:#f1f5f9;transition:transform .2s}.product-card:hover .product-card-image{transform:scale(1.03)}.product-card-body{padding:1rem;display:flex;flex-direction:column;gap:.4rem;flex:1}.product-card-category{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.product-card-name{font-weight:600;font-size:.95rem;color:var(--text);text-decoration:none;line-height:1.3}.product-card-name:hover{color:var(--primary);text-decoration:none}.product-card-desc{font-size:.82rem;color:var(--text-muted);line-height:1.4}.product-card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:.5rem}.product-card-price{font-size:1.1rem;font-weight:700;color:var(--text)}.hero{background:linear-gradient(135deg,#1d4ed8,#2563eb);color:#fff;padding:5rem 1rem;text-align:center}.hero-inner h1{font-size:2.5rem;font-weight:800;margin-bottom:1rem}.hero-inner p{font-size:1.15rem;opacity:.9;margin-bottom:2rem}.hero-cta{background:#fff;color:var(--primary);font-size:1rem;padding:.75rem 2rem}.hero-cta:hover{background:#f0f0f0;text-decoration:none}.categories-section{padding:3rem 0}.category-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:2rem 1.5rem;text-align:center;text-decoration:none;display:block;transition:box-shadow .2s,border-color .2s}.category-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary);text-decoration:none}.category-emoji{font-size:2.5rem;display:block;margin-bottom:.75rem}.category-card h3{font-size:1.1rem;font-weight:600;color:var(--text);margin-bottom:.4rem}.category-card p{font-size:.85rem;color:var(--text-muted)}.featured-section{padding:0 0 3rem}.products-page{padding:2rem 0}.products-layout{display:grid;grid-template-columns:240px 1fr;gap:2rem;align-items:start}.filter-sidebar{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;position:sticky;top:80px}.filter-title{font-size:1rem;font-weight:600;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.filter-section{margin-bottom:1.25rem}.filter-label{display:block;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:.5rem}.category-options{display:flex;flex-direction:column;gap:.35rem}.category-btn{background:transparent;border:1px solid var(--border);border-radius:6px;padding:.35rem .75rem;font-size:.875rem;text-align:left;cursor:pointer;color:var(--text);transition:all .15s}.category-btn:hover{border-color:var(--primary);color:var(--primary)}.category-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.price-range{display:flex;align-items:center;gap:.5rem}.price-range .form-control{flex:1}.price-range span{color:var(--text-muted)}.products-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.products-count{font-size:.875rem;color:var(--text-muted)}.sort-select{width:auto;min-width:180px}.no-products{text-align:center;padding:3rem;color:var(--text-muted)}@media (max-width: 768px){.products-layout{grid-template-columns:1fr}.filter-sidebar{position:static}}.product-detail-page{padding:2rem 0}.breadcrumb{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-muted);margin-bottom:1.5rem;flex-wrap:wrap}.breadcrumb a{color:var(--text-muted)}.breadcrumb a:hover{color:var(--primary)}.product-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}.product-detail-image-wrap{background:#f8fafc;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}.product-detail-image{width:100%;height:400px;object-fit:cover;display:block}.product-detail-category{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:.5rem}.product-detail-name{font-size:1.75rem;font-weight:700;line-height:1.2;margin-bottom:.75rem}.product-detail-price{font-size:2rem;font-weight:700;color:var(--text);margin-bottom:.75rem}.product-detail-availability{margin-bottom:1rem}.product-detail-desc{font-size:.95rem;line-height:1.7;color:var(--text-muted);margin-bottom:1.5rem}.quantity-row{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.qty-label{font-weight:500}.qty-controls{display:flex;align-items:center;gap:.5rem;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.qty-btn{background:transparent;border:none;padding:.4rem .75rem;font-size:1.1rem;cursor:pointer;color:var(--text)}.qty-btn:hover:not(:disabled){background:var(--bg)}.qty-btn:disabled{opacity:.4;cursor:not-allowed}.qty-value{min-width:2rem;text-align:center;font-weight:600}.product-detail-meta{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border);font-size:.875rem;color:var(--text-muted)}@media (max-width: 768px){.product-detail-grid{grid-template-columns:1fr;gap:1.5rem}.product-detail-image{height:280px}}.cart-page{padding:2rem 0}.cart-layout{display:grid;grid-template-columns:1fr 320px;gap:2rem;align-items:start}.cart-items{display:flex;flex-direction:column;gap:1rem}.cart-item{display:grid;grid-template-columns:80px 1fr auto;gap:1rem;align-items:center}.cart-item-image{width:80px;height:80px;object-fit:cover;border-radius:6px;background:#f1f5f9}.cart-item-info{display:flex;flex-direction:column;gap:.25rem}.cart-item-name{font-weight:600;font-size:.95rem;color:var(--text);text-decoration:none}.cart-item-name:hover{color:var(--primary)}.cart-item-price{font-size:.875rem;color:var(--text-muted)}.cart-item-category{font-size:.75rem;color:var(--text-muted);text-transform:uppercase}.cart-item-controls{display:flex;flex-direction:column;align-items:flex-end;gap:.5rem}.cart-item-subtotal{font-weight:700;font-size:1rem}.cart-summary{position:sticky;top:80px}.summary-row{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid var(--border);font-size:.9rem}.discount-row{color:var(--success)}.total-row{font-size:1.1rem;font-weight:700;border-bottom:none;padding-top:.75rem}.discount-section{margin-top:1rem}.discount-input-row{display:flex;gap:.5rem}.discount-applied{display:flex;justify-content:space-between;align-items:center;background:#dcfce7;padding:.5rem .75rem;border-radius:var(--radius);font-size:.875rem}.success-text{color:var(--success);font-size:.8rem;margin-top:.25rem}.cart-empty{text-align:center;padding:4rem 2rem;color:var(--text-muted);font-size:1.1rem}.qty-controls{display:flex;align-items:center;gap:.25rem;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.qty-btn{background:transparent;border:none;padding:.3rem .6rem;font-size:1rem;cursor:pointer}.qty-btn:hover{background:var(--bg)}.qty-value{min-width:2rem;text-align:center;font-weight:600;font-size:.9rem}@media (max-width: 768px){.cart-layout{grid-template-columns:1fr}.cart-summary{position:static}.cart-item{grid-template-columns:60px 1fr}.cart-item-controls{grid-column:1 / -1;flex-direction:row;justify-content:space-between;align-items:center}}.checkout-page{padding:2rem 0}.step-indicator{display:flex;gap:0;margin-bottom:2rem}.step{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--border);flex:1;font-size:.875rem;color:var(--text-muted);position:relative}.step:not(:last-child):after{content:"";position:absolute;right:-10px;top:0;bottom:0;width:20px;background:var(--border);clip-path:polygon(0 0,80% 50%,0 100%);z-index:1}.step.active{background:var(--primary);color:#fff}.step.done{background:#bbf7d0;color:var(--success)}.step-num{width:22px;height:22px;border-radius:50%;background:#ffffff4d;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.checkout-layout{display:grid;grid-template-columns:1fr 280px;gap:2rem;align-items:start}.checkout-step h2{margin-bottom:1.25rem}.btn-row{display:flex;gap:1rem;justify-content:flex-end;margin-top:1rem}.review-section{padding:.75rem 0;border-bottom:1px solid var(--border);margin-bottom:.75rem}.review-section h3{font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:.35rem}.review-items{margin:.75rem 0}.review-item{display:flex;justify-content:space-between;font-size:.875rem;padding:.25rem 0}.review-totals{margin-top:1rem;border-top:1px solid var(--border)}.checkout-summary{position:sticky;top:80px}.checkout-item{display:grid;grid-template-columns:1fr auto auto;gap:.5rem;font-size:.8rem;padding:.35rem 0;border-bottom:1px solid var(--border)}.checkout-item-name{color:var(--text-muted)}hr{border:none;border-top:1px solid var(--border);margin:.5rem 0}.summary-row{display:flex;justify-content:space-between;padding:.4rem 0;font-size:.875rem}.total-row{font-weight:700;font-size:1rem}@media (max-width: 768px){.checkout-layout{grid-template-columns:1fr}.checkout-summary{position:static;order:-1}.step-label{display:none}}.auth-page{min-height:calc(100vh - 120px);display:flex;justify-content:center;align-items:flex-start;padding:3rem 1rem}.auth-card{width:100%;max-width:440px}.auth-title{font-size:1.5rem;font-weight:700;margin-bottom:.25rem}.auth-subtitle{color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem}.auth-footer{text-align:center;margin-top:1.25rem;font-size:.875rem;color:var(--text-muted)}.auth-hint{margin-top:1rem;padding:.75rem;background:#f8fafc;border-radius:var(--radius);font-size:.8rem;color:var(--text-muted)}.auth-hint code{background:var(--border);padding:.1rem .3rem;border-radius:3px;font-size:.85em}.form-hint{font-size:.78rem;color:var(--text-muted);margin-top:.25rem}.profile-page{padding:2rem 0}.profile-grid{display:grid;grid-template-columns:1fr 280px;gap:2rem;align-items:start}.profile-info-row{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid var(--border);font-size:.9rem;color:var(--text-muted)}.profile-info-row strong{color:var(--text)}.profile-links{display:flex;flex-direction:column;gap:.5rem}.profile-link{display:flex;align-items:center;gap:.5rem;padding:.6rem .75rem;border-radius:var(--radius);color:var(--text);text-decoration:none;font-size:.9rem;transition:background .15s}.profile-link:hover{background:var(--bg);color:var(--primary);text-decoration:none}@media (max-width: 768px){.profile-grid{grid-template-columns:1fr}}.order-history-page{padding:2rem 0}.orders-list{display:flex;flex-direction:column;gap:1.25rem}.order-card{overflow:hidden}.order-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.75rem;padding-bottom:.75rem;border-bottom:1px solid var(--border)}.order-id{font-weight:700;font-size:1rem}.order-date{font-size:.8rem;color:var(--text-muted);margin-top:.15rem}.order-header-right{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:.35rem}.order-total{font-weight:700;font-size:1.1rem}.order-items{display:flex;flex-direction:column;gap:.5rem;margin-bottom:.75rem}.order-item{display:grid;grid-template-columns:50px 1fr auto;align-items:center;gap:.75rem;font-size:.875rem}.order-item-img{width:50px;height:50px;object-fit:cover;border-radius:6px;background:#f1f5f9}.order-item-name{font-weight:500}.order-item-meta{font-size:.8rem;color:var(--text-muted)}.order-footer{padding-top:.75rem;border-top:1px solid var(--border)}.orders-empty{text-align:center;padding:4rem 2rem;color:var(--text-muted)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #2563eb;--primary-dark: #1d4ed8;--secondary: #64748b;--success: #16a34a;--danger: #dc2626;--warning: #d97706;--bg: #f8fafc;--card-bg: #ffffff;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.1);--shadow-md: 0 4px 6px rgba(0,0,0,.07)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}img{max-width:100%;height:auto}input,select,textarea{font-family:inherit;font-size:1rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.5rem 1.25rem;border:none;border-radius:var(--radius);font-size:.95rem;font-weight:500;transition:background .15s,opacity .15s;cursor:pointer;text-decoration:none}.btn:hover{text-decoration:none;opacity:.9}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);opacity:1}.btn-secondary{background:var(--border);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}.btn-sm{padding:.3rem .75rem;font-size:.85rem}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.3rem;color:var(--text)}.form-control{width:100%;padding:.5rem .75rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.95rem;background:#fff;color:var(--text);transition:border-color .15s}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #2563eb26}.form-control.error{border-color:var(--danger)}.error-text{color:var(--danger);font-size:.8rem;margin-top:.25rem}.alert{padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;font-size:.9rem}.alert-error{background:#fee2e2;color:var(--danger);border:1px solid #fca5a5}.alert-success{background:#dcfce7;color:var(--success);border:1px solid #86efac}.alert-info{background:#dbeafe;color:var(--primary);border:1px solid #93c5fd}.badge{display:inline-block;padding:.2rem .5rem;border-radius:9999px;font-size:.75rem;font-weight:600}.badge-success{background:#dcfce7;color:var(--success)}.badge-danger{background:#fee2e2;color:var(--danger)}.badge-secondary{background:var(--border);color:var(--secondary)}.loading{display:flex;justify-content:center;align-items:center;padding:3rem;color:var(--text-muted)}.page-title{font-size:1.75rem;font-weight:700;margin-bottom:1.5rem;color:var(--text)}.section-title{font-size:1.25rem;font-weight:600;margin-bottom:1rem}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}@media (max-width: 1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.p-2{padding:1rem}.p-3{padding:1.5rem}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.flex-center{display:flex;justify-content:center;align-items:center}.gap-1{gap:.5rem}.gap-2{gap:1rem}