:root{--color-deep-blue: #1F4E8C;--color-mid-blue: #2F6FB3;--color-accent-blue: #3B82C4;--color-black: #000000;--color-white: #FFFFFF;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-500: #6b7280;--color-gray-800: #374151;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-serif: "Merriweather", Georgia, serif;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, 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var(--color-gray-100);width:100%;justify-content:center}.mobile-nav-toggle{display:flex}}.mobile-nav-toggle{display:none;flex-direction:column;justify-content:space-between;width:30px;height:24px;background:transparent;border:none;cursor:pointer;padding:0;z-index:101}.mobile-nav-toggle span{width:100%;height:3px;background-color:var(--color-deep-blue);border-radius:2px;transition:all .3s ease-in-out}.category-header,.subcategory-item,.category-header:hover,.subcategory-item:hover,.subcategory-item.active{transform:none!important;box-shadow:none!important;transition:background-color .2s ease-in-out,color .2s ease-in-out,border-color .2s 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var(--spacing-md)}}.logo-icon{height:48px;width:auto;object-fit:contain}.footer-logo{height:72px;width:auto;margin-bottom:var(--spacing-sm);object-fit:contain;display:block;margin-left:auto;margin-right:auto}@media(max-width:1024px){.logo-icon{height:36px}.footer-logo{height:56px}}.submission-success{margin-top:1.5rem;padding:1.5rem;background-color:var(--color-green-50, #f0fdf4);border:1px solid var(--color-green-200, #bbf7d0);border-radius:var(--radius-sm);text-align:center;color:var(--color-green-800, #166534);animation:fadeIn .3s ease-out}.submission-success h3{font-size:1.25rem;margin-bottom:.5rem;font-weight:600;color:inherit}.submission-success p{font-size:1rem;color:inherit}.submission-success strong{font-family:monospace;font-size:1.2em;background:#fff9;padding:.2rem .6rem;border-radius:4px;display:inline-block;margin-left:.5rem;-webkit-user-select:all;user-select:all}.submission-tracking{margin-top:var(--spacing-2xl);padding-top:var(--spacing-xl);border-top:2px solid var(--color-gray-200)}.submission-tracking h3{font-family:var(--font-serif);font-size:1.5rem;margin-bottom:var(--spacing-xs);color:var(--color-deep-blue)}.submission-tracking p{color:var(--color-gray-600);margin-bottom:var(--spacing-md)}.tracking-input-group{display:flex;gap:var(--spacing-sm);max-width:480px}.tracking-input-group input{flex:1}.tracking-input-group button{white-space:nowrap}@media(max-width:600px){.tracking-input-group{flex-direction:column}.tracking-input-group button{width:100%}}.tracking-status-result{margin-top:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-sm);font-weight:500;display:none}.tracking-status-result.show{display:flex;animation:fadeIn .3s ease-in-out}.admin-modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.admin-modal{background:var(--color-white);padding:2rem;border-radius:var(--radius-md);box-shadow:var(--shadow-xl);max-width:400px;width:90%;text-align:center}.admin-modal h2{color:var(--color-deep-blue);margin-bottom:.5rem}.admin-error{color:#dc2626;font-size:.9rem;margin-top:.5rem}.admin-grid{display:flex;flex-direction:column;gap:1.5rem;max-width:800px;margin:0 auto}.admin-card{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);padding:1.5rem;box-shadow:var(--shadow-sm)}.admin-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;border-bottom:1px solid var(--color-gray-100);padding-bottom:.5rem}.admin-card-header h3{font-size:1.25rem;color:var(--color-deep-blue);margin:0;font-family:var(--font-serif)}.admin-badge{font-family:monospace;background:var(--color-gray-100);padding:.2rem .6rem;border-radius:4px;font-size:.85rem;color:var(--color-gray-600)}.admin-card-body p{margin-bottom:.5rem;font-size:.95rem}.admin-card-body strong{color:var(--color-deep-blue)}.admin-card-actions{display:flex;gap:1rem;margin-top:1.5rem}.btn-approve{flex:1;background-color:#16a34a;color:#fff;border:1px solid #16a34a}.btn-approve:hover{background-color:#15803d;border-color:#15803d;transform:translateY(-1px)}.btn-reject{flex:1;background-color:#dc2626;color:#fff;border:1px solid #dc2626}.btn-reject:hover{background-color:#b91c1c;border-color:#b91c1c;transform:translateY(-1px)}.btn-revoke{flex:none;width:auto;padding:.4rem 1rem;font-size:.85rem;background-color:transparent;color:#dc2626;border:1px solid #dc2626}.btn-revoke:hover{background-color:#fef2f2;border-color:#b91c1c;color:#b91c1c}.btn-remove{background-color:transparent;color:#dc2626;border:1px solid #dc2626;transition:all .2s ease}.btn-remove:hover{background-color:#991b1b;border-color:#991b1b;color:#fff}@media(max-width:600px){.admin-card-header{flex-direction:column;gap:.5rem}.admin-card-actions{flex-direction:column}}.reader-container{max-width:1100px;margin:0 auto}.reader-modal{position:fixed;inset:0;z-index:2200;background:#0009;display:flex;align-items:center;justify-content:center}.reader-shell{width:100%;height:100%;max-width:100%;max-height:100%;background:#fff;display:flex;flex-direction:column;overflow:hidden;position:relative}.reader-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;background:#e5e7eb;position:relative;scroll-behavior:smooth}.pdf-loading-message{display:block;margin:60px auto!important;padding:1.25rem 2.5rem;color:var(--color-deep-blue);font-weight:600;font-size:1.1rem;text-align:center;width:fit-content;background:#ffffffe6;border-radius:8px;box-shadow:0 4px 12px #00000014;border:1px solid rgba(0,0,0,.06)}.pdf-page-indicator{position:absolute;top:76px;left:50%;transform:translate(-50%,-10px);background:#111827e6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fff;padding:8px 20px;border-radius:9999px;font-family:var(--font-sans);font-size:.9rem;font-weight:600;letter-spacing:.03em;pointer-events:none;z-index:1500;box-shadow:0 4px 10px #00000026,0 2px 4px #0000001a;opacity:0;transition:opacity .3s cubic-bezier(.4,0,.2,1),transform .3s cubic-bezier(.4,0,.2,1)}.pdf-page-indicator.show{opacity:1;transform:translate(-50%)}.pdf-page-wrapper{margin:0 auto 20px;background:#fff;box-shadow:0 4px 6px #0000001a;display:flex;justify-content:center;align-items:center;position:relative}.fullscreen-modal-header{min-height:64px;height:auto;background:linear-gradient(135deg,var(--color-deep-blue) 0%,#153766 100%);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:var(--color-white);display:flex;align-items:center;justify-content:space-between;padding:12px var(--spacing-md);box-shadow:0 2px 8px #00000014;flex-wrap:wrap;gap:16px;z-index:50}.mobile-pdf-title{flex:1;text-align:center;color:var(--color-white);font-size:1.1rem;font-weight:600;margin:0;padding:0 12px;word-break:break-word}.pdf-title{margin:0;font-family:var(--font-serif);font-size:1.25rem;flex:1 1 200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-toolbar{display:flex;gap:10px;flex-wrap:nowrap;align-items:center;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;max-width:100%;transition:opacity .3s ease}.pdf-toolbar::-webkit-scrollbar{display:none}.pdf-btn{background:transparent;border:none;color:#ffffffe6;width:40px;height:40px;min-height:40px;min-width:40px;display:inline-flex;align-items:center;justify-content:center;padding:0;border-radius:8px;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:all .2s ease}.pdf-btn svg{width:22px;height:22px;stroke-width:2.2px;fill:none}.pdf-btn:hover{background:#ffffff1f;color:#fff}.pdf-btn:active{background:#ffffff2e;transform:scale(.96)}.pdf-btn.active{background:#fff3;color:#fff}.modal-close-btn{background:transparent;color:#ffffffe6;border:none;font-size:2rem;line-height:1;cursor:pointer;width:40px;height:40px;min-height:40px;min-width:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;transition:all .2s ease}.modal-close-btn:hover{background:#ffffff1f;color:#fff}.modal-close-btn:active{background:#ffffff2e;transform:scale(.96)}@media print{#pdf-container,.fullscreen-modal,.paper-viewer,#open-pdf-btn{display:none!important}}.field-card:hover{transform:translateY(-4px);border-color:var(--color-deep-blue)!important;box-shadow:var(--shadow-md)!important}.skeleton-card{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);padding:1.5rem;box-shadow:var(--shadow-sm);animation:pulse 1.5s infinite ease-in-out;min-height:200px}.skeleton-line{height:1rem;background:var(--color-gray-200);border-radius:4px;margin-bottom:.75rem}.skeleton-line.short{width:50%}.skeleton-line.title{height:1.5rem;width:80%;margin-bottom:1rem}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}@media(max-width:768px){.button-group,.admin-card-actions,.form-actions{display:flex;flex-direction:column;align-items:center;width:100%;gap:12px}.button-group .btn,.admin-card-actions .btn,.form-actions .btn{width:100%;max-width:320px}}@media(max-width:480px){.hero h1{font-size:2.4rem;line-height:1.2}}@media(max-width:600px){.policy-content h1{font-size:1.8rem}.policy-content h2,.policy-content h3{font-size:1.4rem}.policy-content p,.policy-content li{font-size:.95rem;line-height:1.6}}.policy-hero h1{word-break:break-word;overflow-wrap:anywhere}@media(max-width:480px){.policy-hero h1{font-size:1.6rem;line-height:1.25;padding:0 .75rem}}@media(max-width:768px){.reader-container{padding:var(--spacing-lg) var(--spacing-md)}}@media(max-width:480px){.search-bar,.tracking-input-group{flex-direction:column;width:100%}.search-bar .search-input,.search-bar .btn{width:100%}.search-controls input,.search-input{font-size:.95rem;padding:.65rem .75rem}.search-controls button,.search-button{font-size:.9rem;padding:.65rem .75rem}.category-select,.library-filter select{font-size:.95rem;padding:.6rem .7rem}.paper-card h3,.paper-title{font-size:1.15rem;line-height:1.35}.paper-meta{font-size:.85rem}.paper-abstract{font-size:.9rem}.reader-container{padding:var(--spacing-sm) var(--spacing-sm)}.reader-header{margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm)}.reader-title{font-size:1.4rem}}@media(max-width:768px){.fullscreen-modal-header{padding:12px 16px;flex-direction:column;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px 12px #00000026}.pdf-title{font-size:1.1rem;font-weight:700;line-height:1.35;flex:0 0 auto;width:100%;text-align:center;padding:0 44px;box-sizing:border-box;white-space:normal;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.pdf-toolbar{flex:0 0 auto;width:100%;justify-content:center;padding-bottom:2px}.modal-close-btn{position:absolute;top:12px;right:12px}#pdf-spread{display:none!important}.pdf-page-indicator{top:60px;z-index:1550}}@media(min-width:769px)and (max-width:1024px){.fullscreen-modal-header{padding:16px;flex-direction:column;align-items:center;justify-content:center;gap:12px;box-shadow:0 4px 15px #0000001f}.pdf-title{font-size:1.15rem;font-weight:700;line-height:1.2;flex:0 0 auto;width:100%;text-align:center;padding:0 50px;box-sizing:border-box;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-toolbar{flex:0 0 auto;width:100%;justify-content:center}.modal-close-btn{position:absolute;top:16px;right:16px}}@media(min-width:768px)and (max-width:1024px){.form-actions{display:flex!important;flex-direction:row!important;justify-content:center!important;align-items:center!important;width:100%!important;flex-direction:column;align-items:center;justify-content:center;gap:12px;box-shadow:0 4px 15px #0000001f}.pdf-title{font-size:1.15rem;font-weight:700;line-height:1.2;flex:0 0 auto;width:100%;text-align:center;padding:0 50px;box-sizing:border-box;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-toolbar{flex:0 0 auto;width:100%;justify-content:center}.modal-close-btn{position:absolute;top:16px;right:16px}}@media(min-width:768px)and (max-width:1024px){.form-actions{display:flex!important;flex-direction:row!important;justify-content:center!important;align-items:center!important;width:100%!important;gap:16px!important}.form-actions .btn{width:50%!important;max-width:250px!important}}.collection-banner{position:relative;width:100%;min-height:450px;background-image:url(../collection-banner.png);background-size:cover;background-position:center;display:flex;align-items:center;margin:0;overflow:hidden}.banner-overlay{display:none}.banner-content{position:relative;z-index:2;padding:0 80px;width:100%;max-width:1200px;text-align:left}.banner-title{color:var(--color-white);font-family:"Georgia",var(--font-serif);font-size:clamp(2rem,5vw,3.2rem);font-weight:800;margin-bottom:1rem;line-height:1.2;white-space:nowrap;letter-spacing:-.02em;text-shadow:0 2px 10px rgba(0,0,0,.3)}.banner-desc{color:#ffffffd9;font-family:var(--font-sans);font-size:1.15rem;line-height:1.6;margin-bottom:2rem}.banner-btn{display:inline-flex;background-color:var(--color-white);color:var(--color-deep-blue);padding:1rem 2.25rem;border-radius:50px;font-weight:700;font-size:1.1rem;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;cursor:pointer;text-decoration:none;font-family:var(--font-sans);box-shadow:0 4px 15px #0003}.banner-btn:hover{background-color:#f8fafc;transform:translateY(-4px) scale(1.02);color:var(--color-deep-blue);box-shadow:0 8px 25px #fff6}@media(max-width:1024px){.collection-banner{min-height:auto;padding:5rem 0}.banner-content{padding:0 40px}.banner-title{font-size:clamp(2rem,4vw,2.8rem);white-space:nowrap;overflow:hidden}.banner-desc{font-size:1.15rem}}@media(max-width:768px){.collection-banner{padding:4rem 0}.banner-content{padding:0 20px}.banner-title{font-size:2rem;white-space:normal}.banner-desc{font-size:1.05rem}}@media(min-width:769px){.mobile-header,.mobile-bottom-bar,.mobile-bottom-sheet,.mobile-search-overlay{display:none!important}.desktop-reader-header{display:flex;align-items:center;justify-content:space-between;height:60px;min-height:60px;background:linear-gradient(135deg,var(--color-deep-blue) 0%,#153766 100%);color:var(--color-white);padding:0 16px;z-index:100;box-shadow:0 2px 8px #00000026;flex-shrink:0;position:relative}.desktop-header-left{display:flex;align-items:center;gap:10px;flex-shrink:0}.desktop-header-center{flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:0 16px}.desktop-pdf-title{font-family:var(--font-serif);font-size:1.1rem;font-weight:600;color:#fff;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center;max-width:600px}.desktop-header-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.desktop-toolbar-btn,.desktop-icon-btn{background:transparent;border:none;color:#ffffffe6;width:38px;height:38px;border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.desktop-toolbar-btn:hover,.desktop-icon-btn:hover{background:#ffffff2e;color:#fff}.desktop-a-btn{font-family:var(--font-serif);font-size:1.25rem;font-weight:700}.desktop-reader-main-wrapper{display:flex;flex:1;overflow:hidden;position:relative;width:100%;height:calc(100% - 116px);background:#e5e7eb}.desktop-reader-sidebar{width:320px;min-width:320px;max-width:320px;background:#fff;border-right:1px solid var(--color-gray-200);display:flex;flex-direction:column;height:100%;transition:margin-left .3s cubic-bezier(.4,0,.2,1),transform .3s cubic-bezier(.4,0,.2,1);z-index:50;flex-shrink:0;box-shadow:2px 0 8px #0000000a}.reader-shell.sidebar-collapsed .desktop-reader-sidebar{margin-left:-320px}.sidebar-scrollable-content{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}.doc-info-card{background:var(--color-gray-50);border:1px solid var(--color-gray-200);border-radius:8px;padding:14px}.doc-info-header h4{margin:0 0 10px;font-size:.95rem;font-weight:700;color:var(--color-deep-blue);border-bottom:1px solid var(--color-gray-200);padding-bottom:6px}.doc-info-body{display:flex;gap:12px;align-items:flex-start}.doc-info-text{flex:1;display:flex;flex-direction:column;gap:6px;font-size:.85rem;line-height:1.35;word-break:break-word;overflow:hidden}.doc-info-text p{margin:0;color:var(--color-text)}.doc-info-text strong{color:var(--color-gray-700);font-weight:600}.info-label{font-weight:600;color:var(--color-gray-600);display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.02em}.info-val{color:var(--color-text);font-weight:500;margin-bottom:2px;display:block}.doc-cover-preview{width:68px;height:94px;min-width:68px;background:#fff;border:1px solid var(--color-gray-300);border-radius:4px;box-shadow:0 2px 6px #0000001a;overflow:hidden;display:flex;align-items:center;justify-content:center}#doc-cover-canvas{width:100%;height:100%;object-fit:cover;display:block}.sidebar-nav-tabs{display:flex;gap:4px;border-bottom:1px solid var(--color-gray-200);padding-bottom:6px;margin-bottom:12px}.sidebar-tab{flex:1;padding:6px 10px;border:none;background:transparent;font-size:.82rem;font-weight:600;color:var(--color-gray-600);cursor:pointer;border-radius:4px;text-align:center;transition:all .2s}.sidebar-tab:hover{background:var(--color-gray-100);color:var(--color-deep-blue)}.sidebar-tab.active{background:var(--color-deep-blue);color:#fff}.sidebar-thumbnails-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.sidebar-thumbnail-item{display:flex;flex-direction:column;align-items:center;padding:6px;background:#fff;border:2px solid transparent;border-radius:6px;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 3px #00000014}.sidebar-thumbnail-item:hover{border-color:var(--color-mid-blue);transform:translateY(-2px);box-shadow:0 4px 8px #0000001f}.sidebar-thumbnail-item.active{border-color:var(--color-primary);background:#1f4e8c0f;box-shadow:0 0 0 2px #1f4e8c33}.thumbnail-canvas-wrap{width:100%;aspect-ratio:1 / 1.4;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#f9fafb;border-radius:3px}.thumbnail-canvas-wrap canvas{max-width:100%;max-height:100%;object-fit:contain}.thumbnail-page-num{margin-top:4px;font-size:.75rem;font-weight:600;color:var(--color-gray-600)}.sidebar-toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.sidebar-toc-item{padding:8px 10px;border-radius:4px;font-size:.88rem;color:var(--color-text);cursor:pointer;transition:background .2s;line-height:1.3}.sidebar-toc-item:hover{background:var(--color-gray-100);color:var(--color-deep-blue)}.desktop-reader-footer{display:flex;align-items:center;justify-content:space-between;height:56px;min-height:56px;background:linear-gradient(135deg,var(--color-deep-blue) 0%,#153766 100%);color:#fff;padding:0 16px;z-index:100;box-shadow:0 -2px 8px #00000026;flex-shrink:0}.desktop-footer-nav{display:flex;align-items:center;gap:6px;flex-shrink:0}.desktop-footer-btn{background:transparent;border:none;color:#ffffffe6;width:36px;height:36px;border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.desktop-footer-btn:hover{background:#ffffff2e;color:#fff}.desktop-footer-center{flex:1;max-width:600px;margin:0 20px;display:flex;align-items:center;gap:16px;min-width:0}.desktop-page-counter{font-family:var(--font-sans);font-size:.9rem;font-weight:600;color:#fff;white-space:nowrap;min-width:100px;text-align:center;flex-shrink:0;-webkit-user-select:none;user-select:none;display:inline-block}.desktop-progress-track-wrapper{flex:1;padding:12px 0;cursor:pointer;display:flex;align-items:center;min-width:80px;--reader-progress: 0%}.desktop-progress-track{position:relative;width:100%;height:4px;background:#ffffff40;border-radius:2px}.desktop-progress-fill{position:absolute;top:0;left:0;height:100%;background:var(--color-gold);border-radius:2px;pointer-events:none;width:0%;transition:width .16s linear}.desktop-progress-dot{position:absolute;top:50%;left:0%;transform:translate(-50%,-50%);width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 2px 6px #0000004d;pointer-events:none;transition:left .16s linear;will-change:left}.desktop-progress-track-wrapper.is-dragging .desktop-progress-fill,.desktop-progress-track-wrapper.is-dragging .desktop-progress-dot{transition:none!important}.desktop-progress-track-wrapper:hover .desktop-progress-dot{transform:translate(-50%,-50%) scale(1.25)}.desktop-footer-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.desktop-popover{position:absolute;top:60px;right:16px;background:#fff;border-radius:8px;box-shadow:0 6px 20px #00000026,0 1px 4px #00000014;border:1px solid var(--color-gray-200);z-index:1200;width:240px;padding:14px;display:none;flex-direction:column;gap:8px;box-sizing:border-box;animation:popoverFadeIn .2s cubic-bezier(.4,0,.2,1)}@keyframes popoverFadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.desktop-popover.open{display:flex!important}.desktop-popover h4{font-family:var(--font-sans);font-size:.9rem;font-weight:600;color:var(--color-deep-blue);margin:0 0 8px;padding-bottom:6px;border-bottom:1px solid var(--color-gray-200);text-transform:none;letter-spacing:normal}.desktop-popover .popover-body{display:flex;flex-direction:column;gap:8px}.desktop-popover .btn{font-family:var(--font-sans);font-size:.88rem;font-weight:500;padding:7px 12px;border-radius:4px;box-sizing:border-box}.desktop-popover .btn.btn-outline.active{background:var(--color-deep-blue);color:#fff;border-color:var(--color-deep-blue);font-weight:600}.popover-section{display:flex;flex-direction:column;gap:6px;box-sizing:border-box;width:100%}.popover-divider{height:1px;background:var(--color-gray-200);margin:4px 0}.desktop-page-jump-row{display:flex;gap:8px;align-items:center;width:100%;box-sizing:border-box}.desktop-zoom-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;width:100%;box-sizing:border-box}.desktop-search-bar-container{position:absolute;top:60px;left:50%;transform:translate(-50%);background:#fff;border-radius:8px;box-shadow:0 8px 24px #0000002e;border:1px solid var(--color-gray-200);padding:8px 12px;z-index:1200;display:none;width:440px;max-width:90vw;box-sizing:border-box;animation:popoverFadeIn .2s cubic-bezier(.4,0,.2,1)}.desktop-search-bar-container.open{display:block!important}.desktop-search-inner{display:flex;align-items:center;gap:8px;width:100%;box-sizing:border-box}.desktop-search-inner input{flex:1;min-width:0;border:1px solid var(--color-gray-300);border-radius:4px;padding:7px 10px;font-size:.9rem;color:var(--color-text);box-sizing:border-box}#pdf-search-results{font-size:.85rem;color:var(--color-gray-600);white-space:nowrap;min-width:45px;text-align:center}#pdf-search-prev,#pdf-search-next{border:1px solid var(--color-gray-200);background:var(--color-gray-50);border-radius:4px;width:32px;height:32px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--color-text);flex-shrink:0}#pdf-search-prev:hover,#pdf-search-next:hover{background:var(--color-gray-200)}#pdf-search-close{border:none;background:transparent;font-size:1.5rem;line-height:1;cursor:pointer;color:var(--color-gray-600);padding:0 4px;flex-shrink:0}.reader-body.two-page-mode{display:flex!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;overflow:hidden!important;padding:20px!important;-webkit-user-select:none;user-select:none}.pdf-page-flip-book{position:relative;margin:auto;box-shadow:0 15px 40px #00000038;border-radius:4px;touch-action:none;-webkit-user-select:none;user-select:none}.pdf-flip-page{background-color:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center;box-sizing:border-box}.pdf-flip-canvas{display:block;width:100%!important;height:100%!important;pointer-events:none}.reader-shell.theme-dark .desktop-reader-sidebar{background:var(--color-gray-900);border-color:var(--color-gray-800);color:var(--color-gray-200)}.reader-shell.theme-dark .doc-info-card{background:var(--color-gray-800);border-color:var(--color-gray-700)}.reader-shell.theme-dark .doc-info-header h4{color:#fff;border-color:var(--color-gray-700)}.reader-shell.theme-dark .info-label{color:var(--color-gray-400)}.reader-shell.theme-dark .info-val{color:var(--color-gray-100)}.reader-shell.theme-dark .sidebar-tab{color:var(--color-gray-300)}.reader-shell.theme-dark .sidebar-tab:hover{background:var(--color-gray-800);color:#fff}.reader-shell.theme-dark .sidebar-thumbnail-item{background:var(--color-gray-800);color:var(--color-gray-200)}.reader-shell.theme-dark .thumbnail-canvas-wrap{background:var(--color-gray-900)}.reader-shell.theme-dark .thumbnail-page-num{color:var(--color-gray-400)}.reader-shell.theme-dark .sidebar-toc-item{color:var(--color-gray-200)}.reader-shell.theme-dark .sidebar-toc-item:hover{background:var(--color-gray-800);color:#fff}.reader-shell.theme-dark .desktop-popover{background:var(--color-gray-800);border-color:var(--color-gray-700);color:#fff}.reader-shell.theme-dark .popover-header{color:var(--color-gray-400);border-color:var(--color-gray-700)}.reader-shell.theme-dark .popover-btn{color:var(--color-gray-200)}.reader-shell.theme-dark .popover-btn:hover{background:var(--color-gray-700);color:#fff}.reader-shell.theme-dark .popover-btn.active{background:#ffffff1a;color:var(--color-gold)}.reader-shell.theme-dark .popover-divider{background:var(--color-gray-700)}.reader-shell.theme-dark .desktop-jump-input{background:var(--color-gray-900);border-color:var(--color-gray-700);color:#fff}.reader-shell.theme-dark .popover-icon-btn{background:var(--color-gray-800);border-color:var(--color-gray-700);color:#fff}.reader-shell.theme-dark .popover-icon-btn:hover{background:var(--color-gray-700)}.reader-shell.theme-dark .desktop-search-bar-container{background:var(--color-gray-800);border-color:var(--color-gray-700);color:#fff}.reader-shell.theme-dark .desktop-search-inner input{background:var(--color-gray-900);border-color:var(--color-gray-700);color:#fff}.reader-shell.theme-dark #pdf-search-prev,.reader-shell.theme-dark #pdf-search-next{background:var(--color-gray-700);border-color:var(--color-gray-600);color:#fff}.reader-shell.theme-dark .reader-body{background:#111827}.reader-shell.theme-dark .book-page{background:#1f2937}}@media(max-width:768px){.desktop-header,.desktop-reader-header,.desktop-reader-sidebar,.desktop-reader-footer,.desktop-popover,.desktop-search-bar-container{display:none!important}.mobile-header{display:flex!important;position:fixed;top:0;left:0;width:100%;background:#1f4e8cf2;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1500;padding:6px 12px;justify-content:space-between;align-items:center;box-shadow:0 2px 10px #0003;transition:transform .3s ease,opacity .3s ease;padding-top:calc(6px + 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.search-highlight.active{mix-blend-mode:screen!important;background-color:#f1f5f9bf!important;box-shadow:0 0 0 1.5px #fff!important}@media(prefers-color-scheme:dark){.reader-shell.theme-system .search-highlight{mix-blend-mode:screen!important;background-color:#94a3b866!important}.reader-shell.theme-system .search-highlight.active{mix-blend-mode:screen!important;background-color:#f1f5f9bf!important;box-shadow:0 0 0 1.5px #fff!important}}@media(prefers-color-scheme:dark){.reader-shell.theme-system{background-color:var(--color-black)!important;color:var(--color-gray-200)}.reader-shell.theme-system .mobile-bottom-sheet{background-color:var(--color-gray-800);color:var(--color-gray-100)}.reader-shell.theme-system .sheet-content h4,.reader-shell.theme-system .mobile-search-overlay{color:var(--color-white);background-color:var(--color-gray-800)}.reader-shell.theme-system .mobile-search-overlay input{background-color:var(--color-black);color:var(--color-white);border-color:var(--color-gray-500)}.reader-shell.theme-system #pdf-render-container canvas{filter:invert(90%) hue-rotate(180deg)}}@media(max-width:768px){.mobile-bottom-sheet{max-height:85vh;overflow-y:auto;overscroll-behavior-y:contain}.mobile-bottom-sheet .btn{white-space:normal!important;height:auto!important;min-height:48px;line-height:1.3;padding:12px 16px;font-size:.95rem}}.btn-outline.active{background-color:var(--color-primary)!important;color:var(--color-white)!important;border-color:var(--color-primary)!important}