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var(--color-green);opacity:1;box-shadow:0 2px 6px rgba(0,0,0,.12)}.gallery-lightbox-overlay{position:fixed;inset:0;background-color:rgba(15,20,15,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:9999;display:flex;flex-direction:column;justify-content:space-between;padding:16px 20px;animation:fadeInGallery .2s ease-out}.gallery-lightbox-topbar{display:flex;justify-content:space-between;align-items:center;color:#fff;width:100%;max-width:900px;margin:0 auto}.gallery-lightbox-title{font-family:var(--font-heading);font-size:1.15rem;display:flex;align-items:center;gap:8px}.gallery-lightbox-count{font-family:var(--font-mono);font-size:.85rem;color:hsla(0,0%,100%,.7)}.gallery-lightbox-close{background:hsla(0,0%,100%,.15);color:#fff;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s}.gallery-lightbox-close:hover{background:hsla(0,0%,100%,.3)}.gallery-lightbox-content{position:relative;max-width:900px;max-height:72vh;margin:auto;display:flex;align-items:center;justify-content:center}.gallery-lightbox-img{max-width:100%;max-height:72vh;object-fit:cover;border-radius:6px;box-shadow:0 12px 32px rgba(0,0,0,.5);-webkit-user-select:none;-moz-user-select:none;user-select:none}.gallery-lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.6);color:#fff;border:1px solid hsla(0,0%,100%,.2);width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,transform .15s}.gallery-lightbox-nav:hover{background:var(--color-green);transform:translateY(-50%) scale(1.1)}.gallery-lightbox-prev{left:-24px}.gallery-lightbox-next{right:-24px}.gallery-lightbox-thumbs{display:flex;gap:10px;justify-content:center;max-width:900px;margin:0 auto;overflow-x:auto;padding:8px 0}.gallery-lightbox-thumb{width:48px;height:72px;border-radius:4px;overflow:hidden;padding:0;border:2px solid transparent;opacity:.6;cursor:pointer;background:none;flex-shrink:0;transition:all .15s}.gallery-lightbox-thumb img{width:100%;height:100%;object-fit:cover}.gallery-lightbox-thumb-active{border-color:var(--color-green);opacity:1}@keyframes fadeInGallery{0%{opacity:0}to{opacity:1}}.guarantee-box{background-color:var(--color-green-light);border:1px solid var(--color-border);border-radius:8px;padding:16px;font-size:.85rem;line-height:1.5}.guarantee-mobile-only{display:none}.book-detail-title{font-size:2.2rem;font-family:var(--font-heading);line-height:1.2;margin-bottom:8px}.book-detail-author{font-size:1.05rem;color:var(--color-ink-muted);margin-bottom:14px}.book-detail-price{font-size:2.2rem;font-family:var(--font-heading);font-weight:800;color:var(--color-green);margin-bottom:18px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.spin{animation:spin .8s linear infinite;display:inline-block}.book-section-heading{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:var(--color-ink);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--color-border)}.book-description-section{margin-bottom:28px;position:relative}.book-desc-toggle-input{display:none}.book-description-clamp{max-height:5.5em;overflow:hidden;transition:max-height .35s ease;mask-image:linear-gradient(180deg,#000 60%,transparent);-webkit-mask-image:linear-gradient(180deg,#000 60%,transparent)}.book-desc-expand-label{display:inline-flex;align-items:center;gap:4px;cursor:pointer;color:var(--color-green);font-size:.88rem;font-weight:600;text-decoration:underline;text-underline-offset:3px;margin-top:6px;-webkit-user-select:none;-moz-user-select:none;user-select:none}.book-desc-toggle-input:checked~.book-description-clamp,.book-description-section:has(.book-desc-toggle-input:checked) .book-description-clamp{max-height:200em;mask-image:none;-webkit-mask-image:none}.book-description-section:has(.book-desc-toggle-input:checked) .book-desc-expand-label{display:none}.book-metadata-section{margin-bottom:24px}.book-metadata-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:0;gap:0}.book-meta-row{padding:10px 0;border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:3px}.book-meta-row:nth-child(odd){padding-right:24px}.book-meta-row:nth-child(2n){padding-left:12px}.book-meta-label{font-size:.78rem;color:var(--color-ink-muted);font-family:var(--font-body)}.book-meta-value{font-size:.92rem;color:var(--color-ink);font-weight:500;line-height:1.4}.similar-books-section{margin-top:48px;padding-top:28px;border-top:2px solid var(--color-border)}.similar-books-heading{font-family:var(--font-heading);font-size:1.35rem;color:var(--color-ink);margin-bottom:20px}.similar-books-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));grid-gap:16px;gap:16px}.similar-book-card-wrap{min-width:0}.checkout-summary-mobile{display:none}label:has(input[type=radio]:focus-visible){outline:2px solid var(--color-green);outline-offset:2px}.book-sticky-bar{display:none}@media (max-width:768px){.book-sticky-bar{display:flex;align-items:center;gap:10px;position:fixed;bottom:0;left:0;right:0;z-index:50;padding:8px 16px;background-color:#fff;border-top:1px solid var(--color-border);box-shadow:0 -4px 16px rgba(0,0,0,.1)}.sticky-bar-btn-wrap button{padding:9px 12px!important;font-size:.82rem!important;width:100%!important}.sticky-bar-btn-wrap svg{width:15px!important;height:15px!important}.book-detail-page{padding-bottom:80px!important}.grid-cart,.grid-catalog,.grid-checkout{grid-template-columns:1fr!important}.catalog-sidebar{display:none;position:fixed;top:0;left:0;bottom:0;width:280px;z-index:40;overflow-y:auto;border-radius:0 6px 6px 0!important}.catalog-sidebar--open,.catalog-sidebar-close{display:block!important}.catalog-sidebar-close{margin-bottom:8px}.catalog-filter-toggle{display:flex!important}.hero-grid{grid-template-columns:1fr!important}.header-inner{flex-wrap:wrap;gap:10px!important}.header-inner form{flex:1 1 100%!important;max-width:100%!important;width:100%!important;order:3;margin-top:4px}.header-nav{gap:10px!important}.address-grid-2,.address-grid-3,.admin-dashboard-grid,.book-form-grid-2,.book-form-grid-3{grid-template-columns:1fr!important}h1{font-size:1.6rem!important}h2{font-size:1.2rem!important}.header-logo-text{font-size:1.35rem!important}.book-card-grid,.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:8px!important;width:100%!important}.book-card-item{min-width:0!important}.book-card-cover{height:125px!important}.book-card-body{padding:6px 8px 4px!important}.book-card-title{font-size:.82rem!important;height:2.1rem!important;line-height:1.25!important;margin-bottom:2px!important}.book-card-author{font-size:.65rem!important;margin-bottom:1px!important}.book-card-footer{padding:0 8px 8px!important}.book-card-btn{padding:5px 6px!important;font-size:.72rem!important;gap:4px!important}.price-tag-card{font-size:.92rem!important}.admin-logout-btn{width:100%;display:flex;align-items:center;gap:6px;background:none;border:none;color:#a8a29e;padding:4px 0;font-size:.8rem;cursor:pointer;text-align:left;transition:color .1s}.admin-logout-btn:hover{color:#fb7c5a}aside nav a:hover{background-color:hsla(0,0%,100%,.05)!important;color:#f5f3ef!important}[style*="colorScheme: 'dark'"] input,[style*="colorScheme: 'dark'"] select,[style*="colorScheme: 'dark'"] textarea{color-scheme:dark}.admin-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.book-detail-grid{grid-template-columns:1fr!important;gap:16px!important}.book-gallery-card{width:100%!important;max-width:100%!important;margin:0 0 8px!important;padding:0!important;border:none!important;background:transparent!important;box-shadow:none!important}.book-gallery-frame{width:100%!important;border-radius:8px!important;border:1px solid var(--color-border)}.gallery-thumbnail-strip{display:none!important}.book-gallery-thumb{width:44px!important;height:66px!important}.guarantee-desktop-only{display:none!important}.guarantee-mobile-only{display:block!important}.book-detail-title{font-size:1.45rem!important;margin-bottom:4px!important}.book-detail-author{font-size:.92rem!important;margin-bottom:8px!important}.book-detail-price{font-size:1.6rem!important;margin-bottom:12px!important}.checkout-summary-sticky{position:relative!important;top:auto!important;display:none!important}.checkout-summary-mobile{display:block!important}.step-connector{display:none!important}.similar-books-strip{display:flex!important;flex-direction:row!important;overflow-x:auto!important;gap:12px!important;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding-bottom:8px}.similar-book-card-wrap{width:150px!important;flex:0 0 150px!important;scroll-snap-align:start}.wa-float{bottom:76px!important}}.header-nav{display:flex;align-items:center;gap:4px}.header-nav-item{display:inline-flex;align-items:center;gap:5px;font-size:.85rem;font-weight:600;color:var(--color-ink-muted);text-decoration:none;padding:6px 10px;border-radius:4px;transition:background-color .12s ease,color .12s ease}.header-nav-item:hover{background-color:var(--color-bg-subtle);color:var(--color-ink)}@media (max-width:480px){.container{padding:0 12px!important}.header-tagline{display:none}.header-nav-label{display:none!important}.header-nav{gap:4px!important}.header-nav-item{padding:6px 8px!important}.hero-section{padding:24px 0!important}.price-tag{font-size:1rem}.header-inner form input{font-size:.85rem;padding:8px 36px 8px 12px}}