.pdf-btn-icon{height:36px;justify-content:center;padding:0;width:36px}.pdf-btn-icon .heroicon{fill:none;height:18px;pointer-events:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2;width:18px}#pdfContainer{align-items:flex-start;display:flex;justify-content:center;position:relative}#pdfContainer.has-pdf{display:block!important;overflow-x:hidden;overflow-y:auto}#pdfPagesContainer{align-items:center;display:flex;flex-direction:column;gap:16px;padding:16px 0}.selected-text-indicator{align-items:center;background:rgba(0,0,0,.8);border-radius:8px;bottom:20px;color:#fff;display:none;font-size:14px;gap:8px;max-width:300px;padding:8px 16px;position:fixed;right:20px;z-index:1000}.selected-text-indicator.show{display:flex}@keyframes slideIn{0%{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}@keyframes slideOut{0%{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(100%)}}.citation-header-card{max-height:200px;overflow:hidden;transition:all .3s ease}.citation-header-card.hidden{margin-bottom:0;max-height:0;opacity:0;transform:translateY(-10px)}.toggle-header-btn{transition:transform .3s ease}.toggle-header-btn.rotated{transform:rotate(180deg)}.text-selection-menu{background:#fff;border:1px solid #e5e5e5;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);display:none;min-width:280px;opacity:0;position:absolute;transform:translateY(-10px);transition:all .2s ease;z-index:1000}.text-selection-menu.show{opacity:1;transform:translateY(0)}.selection-menu-content{padding:12px}.selection-menu-header{background:#f8f8f7;border-radius:6px;margin-bottom:12px;max-height:60px;overflow:hidden;padding:8px 12px}.selection-text-preview{color:#666;display:-webkit-box;font-size:13px;-webkit-line-clamp:3;line-height:1.4;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.selection-menu-actions{display:flex;flex-direction:column;gap:4px}.selection-action-btn{align-items:center;background:#fff;border:1px solid transparent;border-radius:6px;color:#333;cursor:pointer;display:flex;font-size:14px;gap:12px;padding:10px 12px;text-align:left;transition:all .15s ease;width:100%}.selection-action-btn:hover{background:#f8f8f7;border-color:#e5e5e5;transform:translateX(2px)}.selection-action-btn i{color:#666;text-align:center;width:20px}.selection-action-btn:hover i{color:#000}.message-title{color:#999;font-size:11px;font-weight:500;letter-spacing:.5px;margin-bottom:4px;text-transform:uppercase}.chat-message.user .message-title{color:rgba(51,51,51,.7)}.message-text{font-size:14px;line-height:1.5}.message-time{color:#999;font-size:11px;margin-top:4px}.chat-message.user .message-time{color:rgba(51,51,51,.6)}#samplePdfBtn:hover{-webkit-text-decoration:underline!important;text-decoration:underline!important}.search-highlight{background-color:rgba(255,255,0,.6)!important}#pdfViewerContainer{height:100%;position:relative;width:100%}#pdfTextLayer{cursor:text;-webkit-user-select:text;-moz-user-select:text;user-select:text}#pdfSearchBox{animation:slideInFromRight .3s ease-out}@keyframes slideInFromRight{0%{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}#chatWidget,#site-footer,.footer,.site-footer,footer{display:none!important}.payment-option-footer,.payment-option-footer.compact{display:block!important}.citation-workspace-vertical{background:#f8f8f7;display:flex;flex-direction:column;height:100vh;margin:0;overflow:hidden;padding:0}.citation-workspace-vertical>.pdf-card{display:flex;flex:1;height:auto!important;margin:0;min-height:0!important;overflow:hidden;padding:0}.citation-workspace-vertical>.pdf-card>div[style*="display: flex"]{height:100%!important}:root{--pdf-chat-gap:16px;--card-margin:8px}.citation-workspace-vertical .pdf-viewer-card{background:#fff!important;border:1px solid #e5e5e5!important;border-radius:12px!important;box-shadow:2px 0 8px 0 rgba(0,0,0,.1)!important;display:flex!important;flex-direction:column!important;height:calc(100vh - 76px)!important;left:240px!important;left:var(--sidebar-width,240px)!important;margin:8px!important;margin:var(--card-margin)!important;margin-right:8px!important;margin-right:calc(var(--pdf-chat-gap)/2)!important;max-width:calc(100vw - 652px)!important;max-width:calc(100vw - var(--sidebar-width, 240px) - 380px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;overflow:hidden!important;position:fixed!important;top:60px!important;transition:left .25s cubic-bezier(.4,0,.2,1),width .25s cubic-bezier(.4,0,.2,1),top .3s ease,height .3s ease!important;width:calc(100vw - 792px)!important;width:calc(100vw - var(--sidebar-width, 240px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;z-index:99!important}body.header-card-visible .citation-workspace-vertical .pdf-viewer-card{height:calc(100vh - 196px)!important;top:180px!important}.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card,[data-sidebar-collapsed=true] .citation-workspace-vertical .pdf-viewer-card,body.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card{left:60px!important;left:var(--sidebar-collapsed-width,60px)!important;max-width:calc(100vw - 472px)!important;max-width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 380px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 612px)!important;width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}@media (min-width:1486px){.citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 792px)!important;max-width:calc(100vw - var(--sidebar-width, 240px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 792px)!important;width:calc(100vw - var(--sidebar-width, 240px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card,[data-sidebar-collapsed=true] .citation-workspace-vertical .pdf-viewer-card,body.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 612px)!important;max-width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 612px)!important;width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 520px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}}.pdf-viewer-card>.pdf-toolbar{background:#fff;border-radius:12px 12px 0 0;box-shadow:0 2px 4px rgba(0,0,0,.1);flex-shrink:0;position:sticky;top:0;z-index:100}.pdf-viewer-card>div[id=pdfContainer]{flex:1;min-height:0;overflow:auto}.chat-section-card{background:#fff!important;border:1px solid #e5e5e5!important;border-radius:12px 0 0 12px!important;border-right:none!important;box-shadow:-2px 0 8px 0 rgba(0,0,0,.1)!important;display:flex!important;flex-direction:column!important;height:calc(100vh - 76px)!important;margin:8px 0 8px 8px!important;margin:var(--card-margin) 0 var(--card-margin) calc(var(--pdf-chat-gap)/2)!important;max-width:520px!important;min-width:380px!important;overflow:hidden!important;position:fixed!important;right:0!important;top:60px!important;transition:top .3s ease,height .3s ease,width .25s ease!important;width:520px!important;z-index:100!important}body.header-card-visible .chat-section-card{height:calc(100vh - 196px)!important;top:180px!important}.chat-section-card #pdfChatMessages{flex:1!important;overflow-y:auto!important}.pdf-viewer-card>.pdf-toolbar{border-radius:12px 12px 0 0!important}@media (max-width:1400px) and (min-width:1200px){.chat-section-card{width:480px!important}.citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 752px)!important;max-width:calc(100vw - var(--sidebar-width, 240px) - 480px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 752px)!important;width:calc(100vw - var(--sidebar-width, 240px) - 480px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card,[data-sidebar-collapsed=true] .citation-workspace-vertical .pdf-viewer-card,body.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 572px)!important;max-width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 480px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 572px)!important;width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 480px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}}@media (max-width:1200px) and (min-width:1000px){.chat-section-card{min-width:350px!important;width:420px!important}.citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 692px)!important;max-width:calc(100vw - var(--sidebar-width, 240px) - 420px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 692px)!important;width:calc(100vw - var(--sidebar-width, 240px) - 420px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card,[data-sidebar-collapsed=true] .citation-workspace-vertical .pdf-viewer-card,body.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card{max-width:calc(100vw - 512px)!important;max-width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 420px - var(--pdf-chat-gap) - var(--card-margin)*2)!important;width:calc(100vw - 512px)!important;width:calc(100vw - var(--sidebar-collapsed-width, 60px) - 420px - var(--pdf-chat-gap) - var(--card-margin)*2)!important}}@media (max-width:1000px) and (min-width:768px){.chat-section-card{min-width:320px!important;width:380px!important}.citation-workspace-vertical .pdf-viewer-card{margin-right:8px!important;margin-right:var(--card-margin)!important}.citation-workspace-vertical .pdf-viewer-card,.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card,[data-sidebar-collapsed=true] .citation-workspace-vertical .pdf-viewer-card,body.sidebar-collapsed .citation-workspace-vertical .pdf-viewer-card{left:0!important;max-width:calc(100vw - 16px)!important;max-width:calc(100vw - var(--card-margin)*2)!important;width:calc(100vw - 16px)!important;width:calc(100vw - var(--card-margin)*2)!important}}.mobile-top-tabs{display:none}@media (max-width:768px){.mobile-tab-bar{display:none!important}.mobile-top-tabs{background:#fff!important;border-bottom:1px solid #e5e5e5!important;gap:8px!important;height:44px!important;left:0!important;padding:0 16px!important;position:fixed!important;right:0!important;top:56px!important;z-index:100!important}.mobile-top-tab,.mobile-top-tabs{align-items:center!important;display:flex!important;justify-content:center!important}.mobile-top-tab{background:#f5f5f5!important;border:none!important;border-radius:8px!important;color:#666!important;cursor:pointer!important;flex:1!important;font-weight:500!important;gap:6px!important;max-width:160px!important;padding:8px 16px!important;transition:all .2s ease!important}.mobile-top-tab,.mobile-top-tab i{font-size:14px!important}.mobile-top-tab.active{background:#f5a623!important;background:var(--color-primary,#f5a623)!important;color:#fff!important}.mobile-top-tab:not(.active):hover{background:#eee!important}.citation-workspace-vertical{bottom:0!important;height:auto!important;left:0!important;margin:0!important;overflow:hidden!important;padding:0!important;position:fixed!important;right:0!important;top:100px!important}.citation-workspace-vertical>.pdf-card{height:100%!important;margin:0!important;overflow:hidden!important;padding:0!important;position:relative!important;width:100%!important}.chat-section-card,.pdf-viewer-card{background:#fff!important;border:none!important;border-radius:0!important;bottom:0!important;box-shadow:none!important;display:none!important;flex-direction:column!important;height:auto!important;left:0!important;margin:0!important;max-width:none!important;overflow:hidden!important;position:fixed!important;right:0!important;top:100px!important;width:100%!important;z-index:10!important}.chat-section-card.mobile-tab-content-active,.pdf-viewer-card.mobile-tab-content-active{display:flex!important;z-index:20!important}.pdf-viewer-card .pdf-toolbar{border-radius:0!important;flex-shrink:0!important}.pdf-viewer-card #pdfContainer{flex:1!important;min-height:0!important;overflow:auto!important}.chat-section-card #pdfChatMessages{flex:1!important;min-height:0!important;overflow-y:auto!important}.history-filename-cell{max-width:calc(100vw - 140px)!important;white-space:normal!important;word-wrap:break-word!important;word-break:break-all!important;word-wrap:anywhere!important;font-size:13px!important;line-height:1.3!important}.history-docs-table{table-layout:fixed!important;width:100%!important}.history-docs-table td:first-child,.history-docs-table th:first-child{width:auto!important}.history-docs-table td:nth-child(2),.history-docs-table th:nth-child(2){white-space:nowrap!important;width:80px!important}.history-docs-table td:nth-child(3),.history-docs-table th:nth-child(3){text-align:center!important;width:50px!important}}.history-docs-table{background:transparent;border-collapse:collapse;border-radius:8px;box-shadow:none;font-size:13px;max-width:900px;overflow:hidden;width:100%}.history-docs-table thead{background:transparent;border-bottom:1px solid #e5e7eb}.history-docs-table th{color:#6b7280;font-size:12px;font-weight:600;padding:6px 12px;text-align:left;white-space:nowrap}.history-docs-table td{border-bottom:1px solid #f3f4f6;color:#374151;padding:6px 12px}.history-docs-table tbody tr{background:transparent;cursor:pointer;transition:background .2s ease}.history-docs-table tbody tr:hover{background:rgba(0,0,0,.03)}.history-docs-table tbody tr:last-child td{border-bottom:none}.history-filename-cell{max-width:500px;white-space:normal;word-wrap:break-word;color:#111827;font-weight:500;line-height:1.4;text-align:left;word-break:break-word}.history-time-cell{color:#6b7280;font-size:12px}.history-count-cell{color:#059669;font-weight:500;text-align:center}.history-view-more{align-items:center;border-radius:6px;color:#666;cursor:pointer;display:flex;font-size:13px;justify-content:center;margin-top:12px;padding:10px;transition:all .2s ease}.history-view-more:hover{background:#f3f4f6;color:#000}.history-empty{color:#9ca3af;font-size:13px;padding:24px;text-align:center}.pdf-page-indicator{color:#666}.pdf-toolbar-divider{background:#e5e5e5}.pdf-toolbar select{background:#fff;border-color:#e5e5e5;color:inherit}#pdfContainer{background:#f8f8f7}.pdf-placeholder-icon{color:#ccc}.pdf-placeholder-text{color:#666}.pdf-placeholder-hint{color:#ccc}.pdf-sample-link{color:#666}.pdf-history-section{border-top:1px solid #e5e5e5}.pdf-history-title{color:#666}.history-loading{color:#999}#pdfSearchBox{background:#fff;box-shadow:0 4px 12px rgba(0,0,0,.15)}#pdfSearchInput{background:#fff;border-color:#e5e5e5}.pdf-search-results{color:#666}#pdfChatMessages{background:#f9fafb}.pdf-chat-welcome-container{padding:48px 24px;text-align:center}.pdf-chat-welcome-icon-wrapper{align-items:center;background:linear-gradient(135deg,rgba(79,70,229,.1),rgba(99,102,241,.06));border-radius:16px;display:flex;height:64px;justify-content:center;margin:0 auto 20px;width:64px}.pdf-chat-welcome-svg{color:#4f46e5;color:var(--color-primary,#4f46e5);height:32px;opacity:.85;width:32px}.pdf-chat-welcome-title{color:#111827;font-size:17px;font-weight:600;margin-bottom:6px}.pdf-chat-welcome-desc{color:#9ca3af;font-size:13px;margin-bottom:20px}.pdf-chat-welcome-features{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin:0 auto;max-width:340px}.pdf-chat-feature-card{align-items:center;background:#fff;border:1px solid #f3f4f6;border-radius:10px;color:#4b5563;display:flex;font-size:13px;gap:8px;padding:10px 14px;text-align:left}.pdf-chat-feature-card svg{color:#4f46e5;color:var(--color-primary,#4f46e5);flex-shrink:0;opacity:.7}.pdf-chat-input-wrapper{background:#fff;border-top:1px solid #e5e5e5}#pdfChatInput{background:#fff;border-color:#e5e5e5}.pdf-char-count{color:#ccc}.pdf-toolbar{background:#fff;border-bottom-color:#e5e5e5}html.dark .text-selection-menu{background:#1e1e1e;border-color:#404040;box-shadow:0 4px 12px rgba(0,0,0,.4)}html.dark .selection-menu-header{background:#2a2a2a}html.dark .selection-text-preview{color:#a3a3a3}html.dark .selection-action-btn{background:#1e1e1e;color:#d4d4d4}html.dark .selection-action-btn:hover{background:#2a2a2a;border-color:#404040}html.dark .selection-action-btn i{color:#a3a3a3}html.dark .selection-action-btn:hover i{color:#e5e5e5}html.dark .message-title{color:#737373}html.dark .chat-message.user .message-title{color:hsla(0,0%,85%,.7)}html.dark .message-time{color:#737373}html.dark .chat-message.user .message-time{color:hsla(0,0%,85%,.6)}html.dark .search-highlight{background-color:rgba(184,134,11,.5)!important}html.dark .citation-workspace-vertical{background:#0f0f0f}html.dark .citation-workspace-vertical .pdf-viewer-card{background:#1e1e1e!important;border-color:#2a2a2a!important;box-shadow:2px 0 8px 0 rgba(0,0,0,.3)!important}html.dark .pdf-viewer-card>.pdf-toolbar{background:#1e1e1e}html.dark .chat-section-card{background:#1e1e1e!important;border-color:#2a2a2a!important;box-shadow:-2px 0 8px 0 rgba(0,0,0,.3)!important}html.dark .mobile-top-tabs{background:#171717!important;border-bottom-color:#2a2a2a!important}html.dark .mobile-top-tab{background:#262626!important;color:#a3a3a3!important}html.dark .mobile-top-tab:not(.active):hover{background:#333!important}html.dark .history-docs-table thead{border-bottom-color:#2a2a2a}html.dark .history-docs-table th{color:#a3a3a3}html.dark .history-docs-table td{border-bottom-color:#262626;color:#d4d4d4}html.dark .history-docs-table tbody tr:hover{background:hsla(0,0%,100%,.05)}html.dark .history-filename-cell{color:#e5e5e5}html.dark .history-time-cell,html.dark .history-view-more{color:#a3a3a3}html.dark .history-view-more:hover{background:#262626;color:#e5e5e5}html.dark .history-empty{color:#525252}html.dark .pdf-toolbar{background:#1e1e1e!important;border-bottom-color:#2a2a2a!important}html.dark .pdf-page-indicator{color:#a3a3a3}html.dark .pdf-toolbar-divider{background:#404040}html.dark .pdf-toolbar select{background:#262626!important;border-color:#404040!important;color:#d4d4d4!important}html.dark #pdfContainer{background:#171717!important}html.dark .pdf-placeholder-icon{color:#525252}html.dark .pdf-placeholder-text{color:#a3a3a3}html.dark .pdf-placeholder-hint{color:#525252}html.dark .pdf-sample-link{color:#a3a3a3}html.dark .pdf-history-section{border-top-color:#2a2a2a}html.dark .pdf-history-title{color:#a3a3a3}html.dark .history-loading{color:#525252}html.dark #pdfSearchBox{background:#1e1e1e!important;box-shadow:0 4px 12px rgba(0,0,0,.4)!important}html.dark #pdfSearchInput{background:#262626!important;border-color:#404040!important;color:#d4d4d4!important}html.dark .pdf-search-results{color:#a3a3a3}html.dark #pdfChatMessages{background:#171717!important}html.dark .pdf-chat-welcome-icon-wrapper{background:linear-gradient(135deg,rgba(129,140,248,.15),rgba(99,102,241,.08))}html.dark .pdf-chat-welcome-title{color:#e5e5e5}html.dark .pdf-chat-welcome-desc{color:#737373}html.dark .pdf-chat-feature-card{background:#262626;border-color:#333;color:#d4d4d4}html.dark .pdf-chat-feature-card svg{opacity:.8}html.dark .pdf-chat-input-wrapper{background:#1e1e1e!important;border-top-color:#2a2a2a!important}html.dark #pdfChatInput{background:#262626!important;border-color:#404040!important;color:#d4d4d4!important}html.dark #pdfChatInput::-moz-placeholder{color:#525252!important}html.dark #pdfChatInput::placeholder{color:#525252!important}html.dark .pdf-char-count{color:#525252}@media (max-width:768px){html.dark .chat-section-card,html.dark .pdf-viewer-card{background:#1e1e1e!important}}