@import url(https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600&display=swap);body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.chat-window{background-color:#f8f9fa;display:flex;flex-direction:column;height:100%;min-height:0;overflow:hidden;position:relative;width:100%}.chat-header{align-items:center;background-color:#f1f3f5;border-bottom:1px solid #dee2e6;display:flex;flex-shrink:0;justify-content:space-between;padding:15px;z-index:2}.chat-header h2{color:#343a40;font-size:1.2rem;margin:0}.active-references{background-color:#e2f6ff;border-radius:12px;color:#0069d9;font-size:.8rem;font-weight:500;padding:4px 8px}.messages-container{display:flex;flex:1 1;flex-direction:column;min-height:0;overflow-y:auto;padding:80px 15px 120px}.empty-chat{align-items:center;color:#6c757d;display:flex;flex:1 1;font-style:italic;justify-content:center}.message{border:none!important;margin-bottom:15px;max-width:100%;transition:all .2s ease}.message.user{align-self:flex-end}.message.ai,.message.ocr{align-self:flex-start}.ai-message,.user-message{align-items:flex-start;display:flex}.user-message{flex-direction:row-reverse}.message-avatar{align-items:center;background-color:#343a40;border-radius:50%;color:#fff;display:flex;font-size:.8rem;height:30px;justify-content:center;margin:0 8px;width:30px}.ai-message .message-avatar{background-color:#007bff}.message-content{background-color:#e9ecef;border-radius:18px;padding:10px 15px;word-break:break-word}.user-message .message-content{background-color:#007bff;border-top-right-radius:4px;color:#fff}.ai-message .message-content{background-color:#fff;border-top-left-radius:4px;color:#212529}.message-content.streaming{position:relative}.streaming-indicator{display:inline-block;height:12px;margin-left:5px}.streaming-indicator .dot{animation:pulse 1.4s ease-in-out infinite;background-color:#007bff;border-radius:50%;display:inline-block;height:5px;margin:0 2px;width:5px}.streaming-indicator .dot:nth-child(2){animation-delay:.2s}.streaming-indicator .dot:nth-child(3){animation-delay:.4s}.ocr-content{align-items:center;background-color:#e2f3ff;border-left:3px solid #007bff;border-radius:18px;cursor:pointer;display:flex;padding:10px 15px;position:relative;transition:all .2s ease;word-break:break-word}.ocr-content.active{background-color:#d1ecff;border-left:3px solid #007bff;box-shadow:0 2px 4px #007bff26}.ocr-content.inactive{background-color:#f1f3f5;border-left:3px solid #adb5bd;opacity:.8}.ocr-content:hover{box-shadow:0 4px 6px #0000001a;transform:translateY(-1px)}.ocr-tag{color:#007bff;font-weight:700;margin-right:8px}.ocr-text{flex:1 1}.ocr-content.inactive .ocr-tag,.ocr-content.inactive .ocr-text{color:#6c757d}.latex-content{display:inline-block;overflow-x:auto;padding:5px 0;width:100%}.ocr-text .latex-formula{background-color:#ffffff80;border-radius:4px;font-family:Times New Roman,Times,serif;padding:4px}.katex-display{margin:.5em 0;overflow-x:auto;overflow-y:hidden;padding-bottom:.2em;padding-top:.2em}.katex{font-size:1.1em}.katex,.katex .hide-tail,.katex .pstrut,.katex .strut,.katex svg{max-width:100%!important;overflow:hidden!important}.katex svg path{max-width:100%!important}.ocr-text .katex{font-size:1.05em}.ocr-text .katex-display{font-size:1.2em;margin:.7em 0}.latex-content::-webkit-scrollbar{height:4px}.latex-content::-webkit-scrollbar-track{background:#f1f1f1;border-radius:2px}.latex-content::-webkit-scrollbar-thumb{background:#b0bec5;border-radius:2px}.latex-content::-webkit-scrollbar-thumb:hover{background:#90a4ae}.remove-ocr{background:none;border:none;color:#6c757d;cursor:pointer;font-size:1rem;margin-left:8px;opacity:0;padding:0;transition:opacity .2s}.ocr-content:hover .remove-ocr{opacity:1}.input-container{align-items:center;background-color:initial;border-top:none;bottom:20px;box-shadow:none;display:flex;flex-shrink:0;gap:8px;left:50%;max-width:768px;min-width:400px;padding:0;position:absolute;transform:translateX(-50%);width:calc(100% - 40px);z-index:100}.input-pill-wrapper{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff;border:1.5px solid #e5e7eb;border-radius:28px;box-shadow:0 4px 24px #00000014,0 2px 8px #0000000a;display:flex;min-height:56px;padding:4px 4px 4px 20px;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);width:100%}.input-pill-wrapper:hover{border-color:#d1d5db;box-shadow:0 8px 32px #0000001f,0 4px 16px #0000000f;transform:translateY(-1px)}.input-pill-wrapper:focus-within{border-color:#3b82f6;box-shadow:0 0 0 4px #3b82f61a,0 8px 32px #0000001f;transform:translateY(-1px)}.original-chat-container .input-container,.quote-chat-container .input-container{width:auto}.input-container input,.input-container textarea{background:#0000;border:none;border-radius:0;flex:1 1;font-size:1rem;outline:none;padding:0}.input-container textarea{color:#374151;display:block;font-family:inherit;font-size:16px;line-height:1.5;max-height:150px;min-height:24px;overflow-y:hidden;padding:16px 0;resize:none;transition:height .2s ease;width:100%}.input-container textarea.scrollable{overflow-y:auto}.input-container textarea::-webkit-scrollbar{width:6px}.input-container textarea::-webkit-scrollbar-track{background:#0000}.input-container textarea::-webkit-scrollbar-thumb{background-color:#cbd5e0;border-radius:3px}.input-container textarea::-webkit-scrollbar-thumb:hover{background-color:#a0aec0}.input-container button{align-items:center;background-color:#fff;border:1.5px solid #e5e7eb;border-radius:50%;box-shadow:0 2px 8px #00000014;color:#1f2937;cursor:pointer;display:flex;flex-shrink:0;font-size:1rem;height:44px;justify-content:center;margin-left:12px;transition:all .3s cubic-bezier(.4,0,.2,1);width:44px}.input-container button:hover:not(:disabled){background-color:#f9fafb;border-color:#d1d5db;box-shadow:0 4px 16px #0000001f;transform:scale(1.08)}.input-container button:disabled{background-color:#f3f4f6;border-color:#e5e7eb;box-shadow:none;color:#d1d5db;cursor:not-allowed;transform:none}.input-container button.loading{overflow:hidden;position:relative}.input-container button.loading:after{animation:loading 1.5s infinite;background:linear-gradient(90deg,#fff0,#fff6,#fff0);content:"";height:100%;left:0;position:absolute;top:0;width:30%}@keyframes loading{0%{transform:translateX(-100%)}to{transform:translateX(300%)}}.stop-button{background-color:#fff!important;border:1.5px solid #e5e7eb!important;box-shadow:0 2px 8px #00000014!important;color:#1f2937!important}.stop-button:hover{background-color:#f9fafb!important;border-color:#d1d5db!important;box-shadow:0 4px 16px #0000001f!important;transform:scale(1.08)!important}.stop-icon{font-size:16px}.floating-quotes-container{bottom:85px;display:flex;flex-wrap:wrap;gap:8px;left:50%;max-width:768px;min-width:400px;pointer-events:auto;position:absolute;transform:translateX(-50%);width:calc(100% - 40px);z-index:98}.ai-quotes-container{align-self:flex-start;display:flex;flex-direction:column;gap:8px;margin:15px 0;max-width:100%}.ai-quote{align-items:center;animation:fadeIn .3s ease-in-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fff;border:1px solid #e5e7eb;border-left:3px solid #6c5ce7;border-radius:18px;box-shadow:0 1px 4px #0000000f,0 1px 2px #00000008;display:inline-flex;font-size:12px;font-weight:500;max-width:300px;min-height:32px;padding:6px 12px;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);word-break:break-word}.ai-quote:hover{border-color:#d1d5db;box-shadow:0 2px 8px #00000014,0 1px 4px #0000000a;transform:translateY(-.5px)}.quote-tag{color:#6c5ce7;font-weight:700;margin-right:8px}.quote-text{color:#4a4a4a;flex:1 1;font-family:SF Mono,Monaco,Cascadia Code,Roboto Mono,monospace;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.remove-quote{background:none;border:none;color:#6c757d;cursor:pointer;font-size:16px;margin-left:5px;opacity:.6;padding:0 5px;transition:opacity .2s}.remove-quote:hover{opacity:1}.source-code-view{background-color:#f8f9fa;border:1px solid #e1e4e8;border-radius:6px;color:#24292e;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:14px;line-height:1.5;margin:0;overflow-x:auto;padding:12px;white-space:pre-wrap;width:100%}.source-code-view code{background:#0000;border:none;padding:0}.source-view-toggle{background-color:#ffffffd9;border:1px solid #d1d5da;border-radius:4px;color:#586069;cursor:pointer;font-size:12px;opacity:0;padding:5px 10px;position:absolute;right:10px;top:10px;transition:all .2s ease;z-index:2}.source-view-toggle:hover{background-color:#f6f8fa;color:#0366d6}.ai-message{position:relative}.ai-message:hover .source-view-toggle{opacity:1}.stop-button{align-items:center;align-self:flex-end;background-color:#dc3545;border:none;border-radius:20px;color:#fff;cursor:pointer;display:flex;flex-shrink:0;font-size:1rem;height:40px;justify-content:center;margin-bottom:0;min-width:45px;padding:10px 15px;transition:all .2s ease}.stop-button:hover{background-color:#c82333;transform:scale(1.05)}.stop-button:active{transform:scale(.95)}.stop-icon{display:inline-block;font-size:1.2rem;line-height:1}.stop-button:hover .stop-icon{animation:pulse-stop .6s ease-in-out}@keyframes pulse-stop{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.floating-references-container{bottom:85px;display:flex;flex-wrap:wrap;gap:6px;left:50%;max-width:768px;min-width:400px;pointer-events:auto;position:absolute;transform:translateX(-50%);width:calc(100% - 40px);z-index:99}.floating-reference-tag{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fff;border:1px solid #e5e7eb;border-radius:18px;box-shadow:0 1px 4px #0000000f,0 1px 2px #00000008;font-weight:500;max-width:240px;min-height:32px;padding:6px 12px;transition:all .3s cubic-bezier(.4,0,.2,1)}.floating-reference-tag,.reference-tag{align-items:center;cursor:pointer;display:inline-flex;font-size:12px;position:relative}.reference-tag{background-color:#f1f3f5;border:1px solid #e1e5e9;border-radius:6px;max-width:200px;padding:4px 8px;transition:all .2s ease}.floating-reference-tag.active{background:#eff6ff;border-color:#3b82f6;box-shadow:0 2px 8px #3b82f61f,0 1px 2px #00000008;color:#1e40af}.floating-reference-tag.inactive{opacity:.75}.floating-reference-tag:hover{border-color:#d1d5db;box-shadow:0 2px 8px #00000014,0 1px 4px #0000000a;transform:translateY(-.5px)}.floating-reference-tag.active:hover{background:#dbeafe;box-shadow:0 3px 12px #3b82f626,0 1px 4px #0000000a}.reference-tag.active{background-color:#e3f2fd;border-color:#2196f3;color:#1976d2}.reference-tag.inactive{opacity:.6}.reference-tag:hover{background-color:#e9ecef;box-shadow:0 2px 4px #0000001a;transform:translateY(-1px)}.reference-tag.active:hover{background-color:#bbdefb}.reference-preview{flex:1 1;font-family:SF Mono,Monaco,Cascadia Code,Roboto Mono,monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.remove-reference{background:none;border:none;border-radius:3px;color:#9ca3af;cursor:pointer;font-size:12px;line-height:1;margin-left:6px;opacity:.7;padding:1px 3px;transition:all .2s ease}.remove-reference:hover{background-color:#ef4444;color:#fff;opacity:1;transform:scale(1.1)}.reference-tooltip{bottom:100%;left:50%;margin-bottom:2px;pointer-events:auto;position:absolute;transform:translateX(-50%);z-index:1500}.tooltip-content{animation:tooltipFadeIn .2s ease-out;background:#fff;border:1px solid #e1e5e9;border-radius:8px;box-shadow:0 8px 24px #00000026;font-size:14px;line-height:1.5;max-height:350px;max-width:500px;min-width:250px;overflow-y:auto;padding:16px;white-space:pre-wrap;word-break:break-word}@keyframes tooltipFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-window,.reference-tags-container{overflow:visible}.user-references{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;margin-bottom:8px}.user-reference-tag{align-items:center;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background-color:#ffffffe6;border:1px solid #007bff4d;border-radius:4px;color:#1976d2;cursor:pointer;display:inline-flex;font-size:11px;max-width:150px;padding:2px 6px;position:relative;transition:all .2s ease}.user-reference-tag:hover{background-color:#fffffff2;border-color:#2196f3;box-shadow:0 2px 4px #007bff33;transform:translateY(-1px)}.user-reference-tag .reference-preview{flex:1 1;font-family:SF Mono,Monaco,Cascadia Code,Roboto Mono,monospace;font-size:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-tooltip{bottom:100%;left:auto;margin-bottom:8px;right:0;top:auto;transform:none;z-index:2000}.user-tooltip .tooltip-content{box-shadow:0 6px 20px #00000026;max-width:400px}.inline-image-preview{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;border-radius:16px;bottom:80px;box-shadow:0 2px 12px #0000001a;display:flex;gap:8px;left:20px;max-width:calc(100% - 40px);overflow-x:auto;padding:8px 12px;position:absolute;scrollbar-width:none;z-index:99}.inline-image-preview::-webkit-scrollbar{display:none}.inline-image-item{flex-shrink:0;position:relative}.inline-preview-image{border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 1px 3px #0000001a;height:50px;object-fit:cover;width:50px}.inline-remove-btn{align-items:center;background:#ef4444;border:none;border-radius:50%;box-shadow:0 1px 3px #0003;color:#fff;cursor:pointer;display:flex;font-size:12px;font-weight:700;height:16px;justify-content:center;position:absolute;right:-4px;top:-4px;transition:all .2s ease;width:16px}.inline-remove-btn:hover{background:#dc2626;transform:scale(1.1)}.message-images{margin-top:10px}.message-image{border:1px solid #dee2e6;cursor:pointer;transition:transform .2s ease}.message-image:hover{transform:scale(1.05)}.user-message .message-images{margin-top:8px}.user-message .message-image{max-height:150px;max-width:150px}@media (max-width:768px){.inline-image-preview{bottom:70px;gap:6px;left:10px;max-width:calc(100% - 20px);padding:6px 10px}.message-image{max-height:120px;max-width:120px}.user-message .message-image{max-height:100px;max-width:100px}}.user-message{position:relative}.message-edit-wrapper{display:flex;justify-content:flex-end;margin-top:6px;opacity:0;transition:opacity .2s ease}.message-content:hover .message-edit-wrapper,.user-message:hover .message-edit-wrapper{opacity:1}.message-edit-btn{align-items:center;background:#ffffff26;border:none;border-radius:12px;color:#ffffffd9;cursor:pointer;display:flex;font-size:12px;gap:4px;height:auto;justify-content:center;padding:4px 10px;transition:all .2s ease;width:auto}.message-edit-btn:hover{background-color:#ffffff40;color:#fff}.message-edit-container{display:flex;flex-direction:column;gap:8px;width:100%}.message-edit-textarea{background-color:#fff;border:1px solid #d1d5db;border-radius:8px;color:#1f2937;font-family:inherit;font-size:14px;line-height:1.5;max-height:200px;min-height:60px;padding:10px 12px;resize:vertical;width:100%}.message-edit-textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f633;outline:none}.message-edit-actions{display:flex;gap:8px;justify-content:flex-end}.edit-action-btn{border:none;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;padding:6px 14px;transition:all .2s ease}.edit-action-btn.cancel{background-color:#f3f4f6;color:#4b5563}.edit-action-btn.cancel:hover{background-color:#e5e7eb}.edit-action-btn.confirm{background-color:#3b82f6;color:#fff}.edit-action-btn.confirm:hover:not(:disabled){background-color:#2563eb}.edit-action-btn.confirm:disabled{background-color:#93c5fd;cursor:not-allowed}.dark-mode .message-edit-textarea{background-color:#374151;border-color:#4b5563;color:#f3f4f6}.dark-mode .message-edit-textarea:focus{border-color:#60a5fa;box-shadow:0 0 0 2px #60a5fa33}.dark-mode .edit-action-btn.cancel{background-color:#4b5563;color:#e5e7eb}.dark-mode .edit-action-btn.cancel:hover{background-color:#6b7280}.dark-mode .message-edit-btn{background:#ffffff1a;color:#ffffffb3}.dark-mode .message-edit-btn:hover{background-color:#fff3;color:#fff}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_AMS-Regular.73ea273a72f4aca30ca5.woff2) format("woff2"),url(/static/media/KaTeX_AMS-Regular.d562e886c52f12660a41.woff) format("woff"),url(/static/media/KaTeX_AMS-Regular.853be92419a6c3766b9a.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Caligraphic-Bold.a1abf90dfd72792a577a.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Bold.d757c535a2e5902f1325.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Bold.7489a2fbfb9bfe704420.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Caligraphic-Regular.d6484fce1ef428d5bd94.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Regular.db074fa22cf224af93d7.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Regular.7e873d3833eb108a0758.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Fraktur-Bold.931d67ea207ab37ee693.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Bold.354501bac435c3264834.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Bold.4c761b3711973ab04edf.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Fraktur-Regular.172d3529b26f8cedef6b.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Regular.6fdf0ac577be0ba82a4c.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Regular.ed305b5434865e06ffde.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Main-Bold.39890742bc957b368704.woff2) format("woff2"),url(/static/media/KaTeX_Main-Bold.0c3b8929d377c0e9b2f3.woff) format("woff"),url(/static/media/KaTeX_Main-Bold.8169508bf58f8bd92ad8.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Main-BoldItalic.20f389c4120be058d80a.woff2) format("woff2"),url(/static/media/KaTeX_Main-BoldItalic.428978dc7837d46de091.woff) format("woff"),url(/static/media/KaTeX_Main-BoldItalic.828abcb200061cffbaae.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Main-Italic.fe2176f79edaa716e621.woff2) format("woff2"),url(/static/media/KaTeX_Main-Italic.fd947498bc16392e76c2.woff) format("woff"),url(/static/media/KaTeX_Main-Italic.fa675e5e4bec9eb250b6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Main-Regular.f650f111a3b890d116f1.woff2) format("woff2"),url(/static/media/KaTeX_Main-Regular.4f35fbcc9ee8614c2bcc.woff) format("woff"),url(/static/media/KaTeX_Main-Regular.9eba1d77abcf2aa6e94e.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Math-BoldItalic.dcbcbd93bac0470b462d.woff2) format("woff2"),url(/static/media/KaTeX_Math-BoldItalic.3f07ed67f06c720120ce.woff) format("woff"),url(/static/media/KaTeX_Math-BoldItalic.bf2d440b3a42ea78a998.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Math-Italic.6d3d25f4820d0da8f01f.woff2) format("woff2"),url(/static/media/KaTeX_Math-Italic.96759856b4e70f3a8338.woff) format("woff"),url(/static/media/KaTeX_Math-Italic.8a5f936332e8028c7278.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(/static/media/KaTeX_SansSerif-Bold.95591a929f0d32aa282a.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Bold.b9cd458ac6d5889ff9c3.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Bold.5b49f4993ae22d7975b4.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Italic.7d393d382f3e7fb1c637.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Italic.8d593cfaa96238d5e2f8.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Italic.b257a18c016f37ee4543.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Regular.cd5e231e0cc53b2cb2c0.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Regular.02271ec5cb9f5b4588ac.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Regular.2f7bc363fc5424ebda59.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Script-Regular.c81d1b2a4b75d3eded60.woff2) format("woff2"),url(/static/media/KaTeX_Script-Regular.073b3402d036714b4370.woff) format("woff"),url(/static/media/KaTeX_Script-Regular.fc9ba5249878cd8f8d88.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size1-Regular.6eec866c69313624be60.woff2) format("woff2"),url(/static/media/KaTeX_Size1-Regular.0108e89c9003e8c14ea3.woff) format("woff"),url(/static/media/KaTeX_Size1-Regular.6de7d4b539221a49e9e2.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size2-Regular.2960900c4f271311eb36.woff2) format("woff2"),url(/static/media/KaTeX_Size2-Regular.3a99e70aee4076660d38.woff) format("woff"),url(/static/media/KaTeX_Size2-Regular.57f5c1837853986ea1db.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size3-Regular.e1951519f6f0596f7356.woff2) format("woff2"),url(/static/media/KaTeX_Size3-Regular.7947224e8a9914fa332b.woff) format("woff"),url(/static/media/KaTeX_Size3-Regular.8d6b6822586eea3d3b20.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size4-Regular.e418bf257af1052628d8.woff2) format("woff2"),url(/static/media/KaTeX_Size4-Regular.aeffd8025cba3647f1a6.woff) format("woff"),url(/static/media/KaTeX_Size4-Regular.4ad7c7e8bb8d10a34bb7.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Typewriter-Regular.c295e7f71970f03c0549.woff2) format("woff2"),url(/static/media/KaTeX_Typewriter-Regular.4c6b94fd1d07f8beff7c.woff) format("woff"),url(/static/media/KaTeX_Typewriter-Regular.c5c02d763c89380dcb4e.ttf) format("truetype")}.katex{font:normal 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.28"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.math-renderer{color:#333;font-size:1rem;line-height:1.5;overflow-wrap:break-word;word-break:break-word}.math-renderer.display-mode{margin:1rem 0;overflow-x:auto;padding:.5rem}.math-renderer .katex-display{margin:1em 0;overflow-x:auto;overflow-y:hidden;padding-bottom:.5em;padding-top:.5em}.math-renderer .katex{font-family:KaTeX_Main,Times New Roman,serif;font-size:1.1em;line-height:1.2;text-indent:0;white-space:normal}.math-renderer .katex-html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.math-renderer .katex-error{background-color:#fee;border:1px solid #c00;border-radius:2px;color:#c00;font-family:monospace;font-size:.9em;padding:2px}.math-renderer .katex-display>.katex{max-width:100%;overflow-x:auto;overflow-y:hidden}.math-renderer h1{font-size:1.8em}.math-renderer h1,.math-renderer h2{border-bottom:1px solid #eaecef;margin:1em 0 .5em;padding-bottom:.3em}.math-renderer h2{font-size:1.5em}.math-renderer h3{font-size:1.3em;margin:1em 0 .5em}.math-renderer h4{font-size:1.1em;margin:1em 0 .5em}.math-renderer h5,.math-renderer h6{font-size:1em;margin:1em 0 .5em}.math-renderer p{margin:.8em 0}.math-renderer ol,.math-renderer ul{margin:.5em 0;padding-left:2em}.math-renderer li{margin:.3em 0}.math-renderer li>p{margin:.5em 0}.math-renderer blockquote{border-left:.25em solid #dfe2e5;color:#6a737d;margin:1em 0;padding:0 1em}.math-renderer hr{background-color:#e1e4e8;border:0;height:.25em;margin:1.5em 0;padding:0}.math-renderer .text-block-container{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1px solid #e2e8f0;border-radius:12px;box-shadow:0 1px 3px #0000000a;margin:.8em 0;padding:1.1em 1.4em;position:relative}.math-renderer .text-block-container .text-block-content{-webkit-font-smoothing:antialiased;background:#0000;color:#475569;font-family:SF Mono,Cascadia Code,Fira Code,JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.88em;letter-spacing:.01em;line-height:1.65;margin:0;overflow-x:auto;padding:0;white-space:pre}.math-renderer .text-block-container .text-block-content code{background:#0000;font-family:inherit;padding:0}.math-renderer .text-block-container .text-block-content::-webkit-scrollbar{height:4px}.math-renderer .text-block-container .text-block-content::-webkit-scrollbar-track{background:#0000}.math-renderer .text-block-container .text-block-content::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:2px}.math-renderer .text-copy-button{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#ffffffb3;border:1px solid #e2e8f0;border-radius:6px;color:#94a3b8;cursor:pointer;font-size:.72em;opacity:0;padding:.2em .55em;position:absolute;right:.65em;top:.55em;transition:all .2s ease}.math-renderer .text-block-container:hover .text-copy-button{opacity:1}.math-renderer .text-copy-button:hover{background-color:#ffffffe6;border-color:#94a3b8;color:#64748b}.math-renderer .code-block-container{background-color:#f6f8fa;border:1px solid #e1e4e8;border-radius:6px;margin:1em 0;overflow:hidden}.math-renderer .code-block-header{align-items:center;background-color:#f1f1f1;border-bottom:1px solid #e1e4e8;display:flex;font-family:monospace;font-size:.85em;justify-content:space-between;padding:.5em 1em}.math-renderer .code-language{color:#6a737d;font-weight:600}.math-renderer .code-copy-button{background-color:initial;border:1px solid #d1d5da;border-radius:3px;color:#586069;cursor:pointer;font-size:.85em;padding:.2em .5em;transition:all .2s}.math-renderer .code-copy-button:hover{background-color:#f0f0f0;border-color:#b1b5ba}.math-renderer pre{font-size:.9em;line-height:1.45;margin:0;overflow-x:auto;padding:1em}.math-renderer code,.math-renderer pre{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}.math-renderer .inline-code{background-color:#afb8c133;border-radius:6px;font-size:.9em;padding:.2em .4em}.math-renderer .table-container{margin:1em 0;overflow-x:auto}.math-renderer table{border-collapse:collapse;display:table;margin:0;overflow:auto;width:100%}.math-renderer table th{background-color:#f6f8fa;font-weight:600}.math-renderer table td,.math-renderer table th{border:1px solid #dfe2e5;padding:.5em 1em}.math-renderer table tr{background-color:#fff;border-top:1px solid #dfe2e5}.math-renderer table tr:nth-child(2n){background-color:#f6f8fa}.math-renderer .markdown-image{border-radius:6px;height:auto;margin:1em 0;max-width:100%}.math-renderer a{color:#0366d6;text-decoration:none}.math-renderer a:hover{text-decoration:underline}.math-renderer input[type=checkbox]{margin-right:.5em}[data-dark-mode=true] .text-block-container{background:linear-gradient(135deg,#1e2028,#252832);border-color:#2d3140;box-shadow:0 1px 3px #0003}[data-dark-mode=true] .text-block-container .text-block-content{color:#c8ced8}[data-dark-mode=true] .text-block-container .text-block-content::-webkit-scrollbar-thumb{background:#3d4455}[data-dark-mode=true] .text-copy-button{background-color:#1e2028b3;border-color:#2d3140;color:#6b7280}[data-dark-mode=true] .text-copy-button:hover{background-color:#2d3140e6;border-color:#4b5563;color:#9ca3af}.mermaid-container{background-color:#f8f9fa;border:1px solid #e1e4e8;border-radius:8px;margin:1rem 0;overflow:hidden;position:relative}.mermaid-diagram{cursor:pointer;display:flex;justify-content:center;overflow-x:auto;padding:16px}.mermaid-diagram svg{height:auto;max-width:100%}.mermaid-diagram:hover{background-color:#f1f3f5}.mermaid-loading{align-items:center;background-color:#f8f9fa;border:1px solid #e1e4e8;border-radius:8px;color:#6c757d;display:flex;font-style:italic;height:120px;justify-content:center}.mermaid-error{background-color:#fff8f8;border:1px solid #ffcdd2;border-radius:8px;color:#d32f2f;padding:16px}.mermaid-error pre{background-color:#f8f9fa;border-radius:4px;color:#333;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.9em;margin-top:8px;overflow-x:auto;padding:12px}.mermaid-actions{background-color:#f1f3f5;border-top:1px solid #e1e4e8;display:flex;justify-content:flex-end;padding:8px}.mermaid-action-button{align-items:center;background-color:initial;border:1px solid #d1d5da;border-radius:4px;color:#586069;cursor:pointer;display:flex;justify-content:center;margin-left:8px;padding:4px 8px;transition:all .2s ease}.mermaid-action-button:hover{background-color:#e1e4e8;color:#24292e}.button-icon{font-size:1rem}.mermaid-fullsize-overlay{align-items:center;background-color:#000000bf;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.mermaid-fullsize-content{background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;max-height:90%;max-width:90%;overflow:auto;padding:20px}.mermaid-fullsize-actions{display:flex;justify-content:flex-end;margin-top:16px}.mermaid-fullsize-actions button{background-color:#f1f3f5;border:1px solid #d1d5da;border-radius:4px;color:#24292e;cursor:pointer;margin-left:8px;padding:6px 12px;transition:all .2s ease}.mermaid-fullsize-actions button:hover{background-color:#e1e4e8}.mermaid-toast{animation:fadeInOut 2s ease;background-color:#333;border-radius:4px;bottom:30px;color:#fff;left:50%;padding:8px 16px;position:fixed;transform:translateX(-50%);z-index:1000}@keyframes fadeInOut{0%{opacity:0;transform:translate(-50%,20px)}15%{opacity:1;transform:translate(-50%)}85%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-20px)}}.svg-container{background-color:#f8f9fa;border:1px solid #e1e4e8;border-radius:8px;margin:1rem 0;overflow:hidden;position:relative}.svg-container.svg-dark{background-color:#1e1e2e;border-color:#383850}.svg-diagram{cursor:pointer;display:flex;justify-content:center;overflow-x:auto;padding:16px}.svg-diagram svg{height:auto;max-width:100%}.svg-diagram:hover{background-color:#f1f3f5}.svg-dark .svg-diagram:hover{background-color:#2a2a3e}.svg-error{background-color:#fff8f8;border:1px solid #ffcdd2;border-radius:8px;color:#d32f2f;padding:16px}.svg-error pre{background-color:#f8f9fa;border-radius:4px;color:#333;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.9em;margin-top:8px;overflow-x:auto;padding:12px}.svg-actions{background-color:#f1f3f5;border-top:1px solid #e1e4e8;display:flex;justify-content:flex-end;padding:8px}.svg-dark .svg-actions{background-color:#2a2a3e;border-top-color:#383850}.svg-action-button{align-items:center;background-color:initial;border:1px solid #d1d5da;border-radius:4px;color:#586069;cursor:pointer;display:flex;justify-content:center;margin-left:8px;padding:4px 8px;transition:all .2s ease}.svg-action-button:hover{background-color:#e1e4e8;color:#24292e}.svg-dark .svg-action-button{border-color:#505068;color:#a0a0b8}.svg-dark .svg-action-button:hover{background-color:#383850;color:#e0e0f0}.svg-button-icon{font-size:1rem}.svg-fullsize-overlay{align-items:center;background-color:#000000bf;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.svg-fullsize-content{background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;max-height:90%;max-width:90%;overflow:auto;padding:20px}.svg-dark .svg-fullsize-content{background-color:#1e1e2e;color:#e0e0f0}.svg-fullsize-actions{display:flex;justify-content:flex-end;margin-top:16px}.svg-fullsize-actions button{background-color:#f1f3f5;border:1px solid #d1d5da;border-radius:4px;color:#24292e;cursor:pointer;margin-left:8px;padding:6px 12px;transition:all .2s ease}.svg-fullsize-actions button:hover{background-color:#e1e4e8}.svg-toast{animation:svgFadeInOut 2s ease;background-color:#333;border-radius:4px;bottom:30px;color:#fff;left:50%;padding:8px 16px;position:fixed;transform:translateX(-50%);z-index:1001}@keyframes svgFadeInOut{0%{opacity:0;transform:translate(-50%,20px)}15%{opacity:1;transform:translate(-50%)}85%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-20px)}}.plot-container{background-color:#f8f9fa;border:1px solid #e1e4e8;border-radius:8px;margin:1rem 0;overflow:hidden;position:relative}.plot-container.plot-dark{background-color:#1e1e2e;border-color:#383850}.plot-diagram{display:flex;justify-content:center;overflow-x:auto;padding:16px}.plot-diagram svg{height:auto;max-width:100%}.plot-diagram:hover{background-color:#f1f3f5}.plot-dark .plot-diagram:hover{background-color:#2a2a3e}.plot-dark .plot-diagram .axis line,.plot-dark .plot-diagram .axis path{stroke:#a0a0b8}.plot-dark .plot-diagram .axis text,.plot-dark .plot-diagram .x.axis .label,.plot-dark .plot-diagram .y.axis .label{fill:#c0c0d8}.plot-dark .plot-diagram .graph-grid .tick line{stroke:#a0a0b833}.plot-dark .plot-fullsize-chart .axis line,.plot-dark .plot-fullsize-chart .axis path{stroke:#a0a0b8}.plot-dark .plot-fullsize-chart .axis text{fill:#c0c0d8}.plot-dark .plot-fullsize-chart .graph-grid .tick line{stroke:#a0a0b833}.plot-loading-inline{align-items:center;color:#6c757d;display:flex;font-style:italic;height:120px;justify-content:center}.plot-error{background-color:#fff8f8;border:1px solid #ffcdd2;border-radius:8px;color:#d32f2f;padding:16px}.plot-error pre{background-color:#f8f9fa;border-radius:4px;color:#333;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.9em;margin-top:8px;overflow-x:auto;padding:12px}.plot-actions{background-color:#f1f3f5;border-top:1px solid #e1e4e8;display:flex;justify-content:flex-end;padding:8px}.plot-dark .plot-actions{background-color:#2a2a3e;border-top-color:#383850}.plot-action-button{align-items:center;background-color:initial;border:1px solid #d1d5da;border-radius:4px;color:#586069;cursor:pointer;display:flex;justify-content:center;margin-left:8px;padding:4px 8px;transition:all .2s ease}.plot-action-button:hover{background-color:#e1e4e8;color:#24292e}.plot-dark .plot-action-button{border-color:#505068;color:#a0a0b8}.plot-dark .plot-action-button:hover{background-color:#383850;color:#e0e0f0}.plot-button-icon{font-size:1rem}.plot-fullsize-overlay{align-items:center;background-color:#000000bf;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.plot-fullsize-content{background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;max-height:90%;max-width:90%;overflow:auto;padding:20px}.plot-dark .plot-fullsize-content{background-color:#1e1e2e;color:#e0e0f0}.plot-fullsize-chart{display:flex;justify-content:center}.plot-fullsize-actions{display:flex;justify-content:flex-end;margin-top:16px}.plot-fullsize-actions button{background-color:#f1f3f5;border:1px solid #d1d5da;border-radius:4px;color:#24292e;cursor:pointer;margin-left:8px;padding:6px 12px;transition:all .2s ease}.plot-fullsize-actions button:hover{background-color:#e1e4e8}.plot-dark .plot-fullsize-actions button{background-color:#2a2a3e;border-color:#505068;color:#e0e0f0}.plot-dark .plot-fullsize-actions button:hover{background-color:#383850}.plot-toast{animation:plotFadeInOut 2s ease;background-color:#333;border-radius:4px;bottom:30px;color:#fff;left:50%;padding:8px 16px;position:fixed;transform:translateX(-50%);z-index:1001}@keyframes plotFadeInOut{0%{opacity:0;transform:translate(-50%,20px)}15%{opacity:1;transform:translate(-50%)}85%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-20px)}}.message-images{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.message-images.user{justify-content:flex-end}.message-images.ai{justify-content:flex-start}.image-container{background:#fff;border:1px solid #e0e0e0;border-radius:8px;cursor:pointer;overflow:hidden;position:relative;transition:transform .2s ease,box-shadow .2s ease}.image-container:hover{box-shadow:0 4px 12px #00000026;transform:scale(1.02)}.message-image{border-radius:8px;display:block;height:auto;max-height:200px;max-width:200px;object-fit:cover;width:auto}.message-images.user .message-image{max-height:150px;max-width:150px}.message-images.ai .message-image{max-height:200px;max-width:200px}.image-overlay{background:linear-gradient(#0000,#000000b3);bottom:0;color:#fff;display:flex;flex-direction:column;font-size:11px;gap:2px;left:0;opacity:0;padding:8px;position:absolute;right:0;transition:opacity .2s ease}.image-container:hover .image-overlay{opacity:1}.image-filename{font-weight:500;text-shadow:0 1px 2px #000c}.image-filesize{font-size:10px;opacity:.9;text-shadow:0 1px 2px #000c}.image-preview-modal{align-items:center;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000000e6;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:10000}.preview-content{background:#fff;border-radius:12px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;max-height:90vh;max-width:90vw;overflow:hidden;position:relative}.preview-close-btn{align-items:center;background:#000000b3;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:18px;font-weight:700;height:32px;justify-content:center;position:absolute;right:15px;top:15px;transition:background-color .2s ease;width:32px;z-index:1}.preview-close-btn:hover{background:#000000e6}.preview-header{background:#f8f9fa;border-bottom:1px solid #e0e0e0;padding:20px 20px 15px}.preview-title{color:#333;font-size:16px;font-weight:600;margin:0 0 8px;word-break:break-all}.preview-info{color:#666;display:flex;font-size:12px;gap:12px}.preview-size,.preview-type{background:#e9ecef;border-radius:4px;font-weight:500;padding:2px 6px}.preview-image-container{align-items:center;background:#f8f9fa;display:flex;flex:1 1;justify-content:center;min-height:300px;overflow:auto;padding:20px}.preview-image{border-radius:8px;box-shadow:0 4px 12px #0000001a;max-height:100%;max-width:100%;object-fit:contain}.preview-actions{background:#f8f9fa;border-top:1px solid #e0e0e0;display:flex;gap:10px;justify-content:center;padding:15px 20px}.preview-action-btn{align-items:center;background:#007bff;border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-size:12px;font-weight:500;gap:6px;padding:8px 16px;transition:background-color .2s ease}.preview-action-btn:hover{background:#0056b3}.preview-action-btn:last-child{background:#6c757d}.preview-action-btn:last-child:hover{background:#545b62}@media (max-width:768px){.message-image{max-height:120px;max-width:120px}.message-images.user .message-image{max-height:100px;max-width:100px}.message-images.ai .message-image{max-height:120px;max-width:120px}.image-overlay{font-size:10px;padding:6px}.preview-content{margin:10px;max-height:calc(100vh - 20px);max-width:calc(100vw - 20px)}.preview-header{padding:15px}.preview-title{font-size:14px}.preview-image-container{min-height:200px;padding:15px}.preview-actions{padding:12px 15px}.preview-action-btn{font-size:11px;padding:6px 12px}}@media (prefers-color-scheme:dark){.image-container{background:#2c2c2c;border-color:#444}.preview-content{background:#2c2c2c;color:#e0e0e0}.preview-header{background:#1a1a1a;border-color:#444}.preview-title{color:#e0e0e0}.preview-info{color:#a0a0a0}.preview-size,.preview-type{background:#444;color:#e0e0e0}.preview-actions,.preview-image-container{background:#1a1a1a}.preview-actions{border-color:#444}}.image-loading{background:#f8f9fa;border:1px dashed #dee2e6;border-radius:8px;color:#6c757d}.image-error,.image-loading{align-items:center;display:flex;font-size:12px;height:100px;justify-content:center;width:150px}.image-error{background:#f8d7da;border:1px solid #f5c6cb;border-radius:8px;color:#721c24;flex-direction:column;gap:4px;text-align:center}.image-preview-modal{animation:fadeIn .2s ease}.image-container,.preview-content{animation:slideUp .3s ease}.comet-input-wrapper{position:relative}.textarea-container{align-items:center;display:flex;flex:1 1;position:relative}.comet-textarea{caret-color:#0000!important}.comet-caret-container{bottom:0;left:0;overflow:hidden;right:0;top:0;z-index:10}.comet-caret,.comet-caret-container{pointer-events:none;position:absolute}.comet-caret{transform-origin:center bottom;transition:left .08s ease,top .08s ease;width:2.5px}.comet-core{animation:caret-pulse 1.2s ease-in-out infinite;background:linear-gradient(180deg,#3b82f6e6,#2563eb 30%,#3b82f6 60%,#60a5facc);border-radius:1.5px;box-shadow:0 0 4px #3b82f6cc,0 0 8px #3b82f680,0 0 12px #3b82f64d;width:100%}.comet-core,.comet-glow{height:100%;position:absolute}.comet-glow{animation:glow-pulse 1.2s ease-in-out infinite;background:radial-gradient(ellipse at center,#3b82f666 0,#3b82f626 40%,#0000 70%);filter:blur(2px);left:50%;transform:translateX(-50%);width:16px}.comet-sparkle{animation:sparkle-float 2s ease-in-out infinite;background:#ffffffe6;border-radius:50%;box-shadow:0 0 4px #fffc,0 0 8px #60a5fa99;height:3px;position:absolute;width:3px}.comet-sparkle-1{animation-delay:0s;left:-6px;top:15%;transform:scale(.8)}.comet-sparkle-2{animation-delay:.6s;left:8px;top:50%;transform:scale(.6)}.comet-sparkle-3{animation-delay:1.2s;left:-4px;top:80%;transform:scale(.5)}.comet-trail-particle{background:linear-gradient(180deg,#3b82f699,#2563eb66 50%,#60a5fa33);border-radius:1px;box-shadow:0 0 3px #3b82f64d;pointer-events:none;position:absolute;transform-origin:center top;transition:opacity .15s ease-out,transform .15s ease-out;width:2px}@keyframes caret-pulse{0%,to{box-shadow:0 0 4px #3b82f6cc,0 0 8px #3b82f680,0 0 12px #3b82f64d;opacity:1;transform:scaleY(1)}50%{box-shadow:0 0 6px #3b82f6,0 0 12px #3b82f6b3,0 0 20px #3b82f666;opacity:.7;transform:scaleY(.98)}}@keyframes glow-pulse{0%,to{opacity:.6;transform:translateX(-50%) scaleX(1)}50%{opacity:.9;transform:translateX(-50%) scaleX(1.2)}}@keyframes sparkle-float{0%,to{opacity:0;transform:translateY(0) scale(.5)}25%{opacity:1;transform:translateY(-2px) scale(.8)}50%{opacity:.8;transform:translateY(-4px) scale(.6)}75%{opacity:.4;transform:translateY(-2px) scale(.4)}}.comet-caret.typing .comet-core{animation:caret-typing .15s ease-out}@keyframes caret-typing{0%{filter:brightness(1.3);transform:scaleY(1.1) scaleX(1.3)}to{filter:brightness(1);transform:scaleY(1) scaleX(1)}}.comet-caret:before{background:linear-gradient(180deg,#0000,#3b82f633 20%,#3b82f64d 50%,#3b82f633 80%,#0000);border-radius:2px;content:"";height:120%;left:0;opacity:0;position:absolute;top:-10%;transition:opacity .1s ease;width:100%}.comet-caret:not(:hover):before{animation:trail-flash .3s ease-out}@keyframes trail-flash{0%{opacity:.8;transform:scaleY(1.5)}to{opacity:0;transform:scaleY(1)}}.comet-textarea:focus+.comet-caret-container .comet-core{background:linear-gradient(180deg,#1d4ed8,#2563eb 30%,#3b82f6 60%,#60a5fae6)}.comet-caret.theme-blue .comet-core{background:linear-gradient(180deg,#3b82f6e6,#2563eb 50%,#3b82f6cc);box-shadow:0 0 4px #3b82f6cc,0 0 8px #3b82f680}.comet-caret.theme-green .comet-core{background:linear-gradient(180deg,#10b981e6,#059669 50%,#10b981cc);box-shadow:0 0 4px #10b981cc,0 0 8px #10b98180}@media (prefers-reduced-motion:reduce){.comet-caret,.comet-core,.comet-glow,.comet-sparkle,.comet-trail-particle{animation:none!important;transition:none!important}.comet-core{opacity:1}}@media (prefers-contrast:high){.comet-core{background:#2563eb;box-shadow:none}.comet-glow,.comet-sparkle{display:none}}.pdf-uploader{--color-primary:#3b82f6;--color-primary-light:#eff6ff;--color-primary-hover:#2563eb;--color-text:#1e293b;--color-text-muted:#64748b;--color-border:#e2e8f0;--color-bg:#fff;--color-bg-subtle:#f8fafc;--color-error:#ef4444;--radius:16px;--radius-sm:10px;--transition:200ms cubic-bezier(0.4,0,0.2,1);font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;margin:0 auto;max-width:420px;padding:32px 24px}.upload-mode-tabs{display:flex;gap:8px;margin-bottom:24px}.upload-mode-tabs .tab{align-items:center;background:var(--color-bg-subtle);border:none;border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;display:flex;flex:1 1;font-size:14px;font-weight:500;gap:8px;justify-content:center;padding:12px 16px;transition:all var(--transition)}.upload-mode-tabs .tab:hover:not(:disabled){background:var(--color-border);color:var(--color-text)}.upload-mode-tabs .tab.active{background:var(--color-primary-light);color:var(--color-primary)}.upload-mode-tabs .tab:disabled{cursor:not-allowed;opacity:.5}.upload-mode-tabs .tab svg{flex-shrink:0}.upload-mode-tabs .tab{white-space:nowrap}.drop-zone{align-items:center;background:var(--color-bg);border:2px dashed var(--color-border);border-radius:var(--radius);cursor:pointer;display:flex;flex-direction:column;justify-content:center;min-height:240px;padding:40px 24px;position:relative;transition:all var(--transition)}.drop-zone.dragging,.drop-zone:hover{background:var(--color-primary-light);border-color:var(--color-primary)}.drop-zone.dragging{border-style:solid;box-shadow:0 8px 32px -8px #3b82f640;transform:scale(1.02)}.drop-zone.uploading{border-color:var(--color-primary);border-style:solid;pointer-events:none}.file-input{cursor:pointer;inset:0;opacity:0;position:absolute}.idle-state{align-items:center;animation:fadeIn .3s ease;display:flex;flex-direction:column;gap:16px}.drop-icon{color:var(--color-text-muted);height:72px;transition:all var(--transition);width:72px}.drop-zone:hover .drop-icon{color:var(--color-primary);transform:translateY(-4px)}.drop-hint{color:var(--color-text-muted);font-size:15px;margin:0;text-align:center}.click-hint{color:var(--color-primary);font-weight:500}.upload-state{align-items:center;animation:fadeIn .3s ease;display:flex;flex-direction:column;gap:16px}.spinner{animation:spin .8s linear infinite;border:3px solid var(--color-border);border-radius:50%;border-top-color:var(--color-primary);height:40px;width:40px}.upload-text{color:var(--color-text-muted);font-size:14px;font-weight:500}.progress-ring{color:var(--color-primary);font-size:13px;font-weight:600}.google-zone{background:var(--color-bg-subtle);border:1px solid var(--color-border);border-radius:var(--radius);flex-direction:column;gap:20px;min-height:200px;padding:40px 24px}.error-toast,.google-zone{align-items:center;display:flex}.error-toast{animation:slideUp .3s ease;background:#fef2f2;border-radius:var(--radius-sm);color:var(--color-error);font-size:13px;font-weight:500;gap:10px;margin-top:16px;padding:12px 16px}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.error-toast svg{flex-shrink:0}@media (max-width:480px){.pdf-uploader{padding:20px 16px}.drop-zone{min-height:200px;padding:32px 20px}.drop-icon{height:56px;width:56px}.upload-mode-tabs .tab{font-size:13px;padding:10px 12px}}.google-drive-picker{align-items:center;display:flex;flex-direction:column;gap:10px}.google-drive-button{align-items:center;background:#1a73e8;border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-size:14px;font-weight:500;gap:8px;justify-content:center;min-width:180px;padding:12px 20px;transition:all .2s ease}.google-drive-button:hover:not(:disabled){background:#1557b0;box-shadow:0 2px 8px #1a73e84d;transform:translateY(-1px)}.google-drive-button:active:not(:disabled){box-shadow:0 1px 4px #1a73e84d;transform:translateY(0)}.google-drive-button:disabled{background:#ccc;box-shadow:none;cursor:not-allowed;transform:none}.drive-icon{flex-shrink:0;height:20px;width:20px}.loading-spinner{animation:spin 1s ease-in-out infinite;border:2px solid #ffffff4d;border-top-color:#fff;height:16px;width:16px}.auth-status{border-radius:4px;font-size:12px;font-weight:500;min-width:180px;padding:8px 12px;text-align:center}.auth-status.success{background:#e8f5e8;border:1px solid #4caf50;color:#2e7d32}.auth-status.error{background:#ffebee;border:1px solid #f44336;color:#c62828}drive-picker{display:none!important}:root{--react-pdf-annotation-layer:1;--annotation-unfocused-field-background:url('data:image/svg+xml;charset=utf-8,<svg width="1" height="1" xmlns="http://www.w3.org/2000/svg"><rect width="100%" height="100%" style="fill:rgba(0,54,255,.13)"/></svg>');--input-focus-border-color:Highlight;--input-focus-outline:1px solid Canvas;--input-unfocused-border-color:#0000;--input-disabled-border-color:#0000;--input-hover-border-color:#000}@media (forced-colors:active){:root{--input-focus-border-color:CanvasText;--input-unfocused-border-color:ActiveText;--input-disabled-border-color:GrayText;--input-hover-border-color:Highlight}.annotationLayer .buttonWidgetAnnotation.checkBox input:required,.annotationLayer .buttonWidgetAnnotation.radioButton input:required,.annotationLayer .choiceWidgetAnnotation select:required,.annotationLayer .textWidgetAnnotation input:required,.annotationLayer .textWidgetAnnotation textarea:required{outline:1.5px solid selectedItem}}.annotationLayer{--scale-factor:1;left:0;pointer-events:none;position:absolute;top:0;transform-origin:0 0}.annotationLayer section{box-sizing:border-box;pointer-events:auto;position:absolute;text-align:left;text-align:initial;transform-origin:0 0}.annotationLayer .buttonWidgetAnnotation.pushButton>a,.annotationLayer .linkAnnotation>a{font-size:1em;height:100%;left:0;position:absolute;top:0;width:100%}.annotationLayer .buttonWidgetAnnotation.pushButton>canvas{height:100%;width:100%}.annotationLayer .buttonWidgetAnnotation.pushButton>a:hover,.annotationLayer .linkAnnotation>a:hover{background:#ff0;box-shadow:0 2px 10px #ff0;opacity:.2}.annotationLayer .textAnnotation img{cursor:pointer;height:100%;position:absolute;width:100%}.annotationLayer .buttonWidgetAnnotation.checkBox input,.annotationLayer .buttonWidgetAnnotation.radioButton input,.annotationLayer .choiceWidgetAnnotation select,.annotationLayer .textWidgetAnnotation input,.annotationLayer .textWidgetAnnotation textarea{background-image:url('data:image/svg+xml;charset=utf-8,<svg width="1" height="1" xmlns="http://www.w3.org/2000/svg"><rect width="100%" height="100%" style="fill:rgba(0,54,255,.13)"/></svg>');background-image:var(--annotation-unfocused-field-background);border:2px solid #0000;border:2px solid var(--input-unfocused-border-color);box-sizing:border-box;font:calc(9px*var(--scale-factor)) sans-serif;height:100%;margin:0;vertical-align:top;width:100%}.annotationLayer .buttonWidgetAnnotation.checkBox input:required,.annotationLayer .buttonWidgetAnnotation.radioButton input:required,.annotationLayer .choiceWidgetAnnotation select:required,.annotationLayer .textWidgetAnnotation input:required,.annotationLayer .textWidgetAnnotation textarea:required{outline:1.5px solid red}.annotationLayer .choiceWidgetAnnotation select option{padding:0}.annotationLayer .buttonWidgetAnnotation.radioButton input{border-radius:50%}.annotationLayer .textWidgetAnnotation textarea{resize:none}.annotationLayer .buttonWidgetAnnotation.checkBox input[disabled],.annotationLayer .buttonWidgetAnnotation.radioButton input[disabled],.annotationLayer .choiceWidgetAnnotation select[disabled],.annotationLayer .textWidgetAnnotation input[disabled],.annotationLayer .textWidgetAnnotation textarea[disabled]{background:none;border:2px solid #0000;border:2px solid var(--input-disabled-border-color);cursor:not-allowed}.annotationLayer .buttonWidgetAnnotation.checkBox input:hover,.annotationLayer .buttonWidgetAnnotation.radioButton input:hover,.annotationLayer .choiceWidgetAnnotation select:hover,.annotationLayer .textWidgetAnnotation input:hover,.annotationLayer .textWidgetAnnotation textarea:hover{border:2px solid #000;border:2px solid var(--input-hover-border-color)}.annotationLayer .buttonWidgetAnnotation.checkBox input:hover,.annotationLayer .choiceWidgetAnnotation select:hover,.annotationLayer .textWidgetAnnotation input:hover,.annotationLayer .textWidgetAnnotation textarea:hover{border-radius:2px}.annotationLayer .choiceWidgetAnnotation select:focus,.annotationLayer .textWidgetAnnotation input:focus,.annotationLayer .textWidgetAnnotation textarea:focus{background:none;border:2px solid Highlight;border:2px solid var(--input-focus-border-color);border-radius:2px;outline:1px solid Canvas;outline:var(--input-focus-outline)}.annotationLayer .buttonWidgetAnnotation.checkBox :focus,.annotationLayer .buttonWidgetAnnotation.radioButton :focus{background-color:initial;background-image:none}.annotationLayer .buttonWidgetAnnotation.checkBox :focus{border:2px solid Highlight;border:2px solid var(--input-focus-border-color);border-radius:2px;outline:1px solid Canvas;outline:var(--input-focus-outline)}.annotationLayer .buttonWidgetAnnotation.radioButton :focus{border:2px solid Highlight;border:2px solid var(--input-focus-border-color);outline:1px solid Canvas;outline:var(--input-focus-outline)}.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after,.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before,.annotationLayer .buttonWidgetAnnotation.radioButton input:checked:before{background-color:CanvasText;content:"";display:block;position:absolute}.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after,.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before{height:80%;left:45%;width:1px}.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before{transform:rotate(45deg)}.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after{transform:rotate(-45deg)}.annotationLayer .buttonWidgetAnnotation.radioButton input:checked:before{border-radius:50%;height:50%;left:30%;top:20%;width:50%}.annotationLayer .textWidgetAnnotation input.comb{font-family:monospace;padding-left:2px;padding-right:0}.annotationLayer .textWidgetAnnotation input.comb:focus{width:103%}.annotationLayer .buttonWidgetAnnotation.checkBox input,.annotationLayer .buttonWidgetAnnotation.radioButton input{-webkit-appearance:none;appearance:none}.annotationLayer .popupTriggerArea{height:100%;width:100%}.annotationLayer .popupWrapper{font-size:calc(9px*var(--scale-factor));min-width:calc(180px*var(--scale-factor));pointer-events:none;position:absolute;width:100%}.annotationLayer .popup{word-wrap:break-word;background-color:#ff9;border-radius:calc(2px*var(--scale-factor));box-shadow:0 calc(2px*var(--scale-factor)) calc(5px*var(--scale-factor)) #888;cursor:pointer;font:message-box;margin-left:calc(5px*var(--scale-factor));max-width:calc(180px*var(--scale-factor));padding:calc(6px*var(--scale-factor));pointer-events:auto;position:absolute;white-space:normal}.annotationLayer .popup>*{font-size:calc(9px*var(--scale-factor))}.annotationLayer .popup h1{display:inline-block}.annotationLayer .popupDate{display:inline-block;margin-left:calc(5px*var(--scale-factor))}.annotationLayer .popupContent{border-top:1px solid #333;margin-top:calc(2px*var(--scale-factor));padding-top:calc(2px*var(--scale-factor))}.annotationLayer .richText>*{font-size:calc(9px*var(--scale-factor));white-space:pre-wrap}.annotationLayer .caretAnnotation,.annotationLayer .circleAnnotation svg ellipse,.annotationLayer .fileAttachmentAnnotation,.annotationLayer .freeTextAnnotation,.annotationLayer .highlightAnnotation,.annotationLayer .inkAnnotation svg polyline,.annotationLayer .lineAnnotation svg line,.annotationLayer .polygonAnnotation svg polygon,.annotationLayer .polylineAnnotation svg polyline,.annotationLayer .squareAnnotation svg rect,.annotationLayer .squigglyAnnotation,.annotationLayer .stampAnnotation,.annotationLayer .strikeoutAnnotation,.annotationLayer .underlineAnnotation{cursor:pointer}.annotationLayer .annotationTextContent,.annotationLayer section svg{height:100%;position:absolute;width:100%}.annotationLayer .annotationTextContent{color:#0000;opacity:0;pointer-events:none;-webkit-user-select:none;user-select:none}.annotationLayer .annotationTextContent span{display:inline-block;width:100%}:root{--react-pdf-text-layer:1}.textLayer{-webkit-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;bottom:0;forced-color-adjust:none;left:0;line-height:1;overflow:hidden;position:absolute;right:0;text-align:left;text-align:initial;top:0}.textLayer br,.textLayer span{color:#0000;cursor:text;position:absolute;transform-origin:0 0;white-space:pre}.textLayer span.markedContent{height:0;top:0}.textLayer .highlight{background-color:#b400aa;border-radius:4px;margin:-1px;padding:1px}.textLayer .highlight.appended{position:static}.textLayer .highlight.begin{border-radius:4px 0 0 4px}.textLayer .highlight.end{border-radius:0 4px 4px 0}.textLayer .highlight.middle{border-radius:0}.textLayer .highlight.selected{background-color:#006400}.textLayer br::selection{background:#0000}.textLayer .endOfContent{bottom:0;cursor:default;display:block;left:0;position:absolute;right:0;top:100%;-webkit-user-select:none;user-select:none;z-index:-1}.textLayer .endOfContent.active{top:0}.pdfViewer{overflow:auto;position:relative}.pdf-document{align-items:flex-start;display:flex;flex-direction:column;min-width:100%;padding:20px 20px 0;width:-webkit-max-content;width:max-content}.page-container{background-color:#fff;box-shadow:0 2px 5px #0003;flex-shrink:0;line-height:0;margin:10px auto;position:relative}.page-container:last-child{margin-bottom:0}.pdf-page{background-color:#fff;border-radius:2px;display:block!important;height:auto!important;line-height:0!important;margin:0!important;min-height:0!important;min-width:0!important;padding:0!important;width:auto!important}.pdf-page canvas{display:block!important;vertical-align:top!important}.text-layer-container{height:0!important;line-height:0!important}.loading-overlay{align-items:center;background-color:#fffc;bottom:0;display:flex;flex-direction:column;justify-content:center;left:0;position:absolute;right:0;top:0;z-index:10}.loading-spinner{border:4px solid #f3f3f3;border-top-color:#3498db;height:40px;margin-bottom:10px;width:40px}.error-overlay{background-color:#fee2e2;border-radius:4px;color:#dc2626;margin:20px;padding:20px;text-align:center}.selection-overlay{bottom:0;cursor:crosshair!important;left:0;position:absolute;right:0;top:0;z-index:20!important}.selection-toggle{background-color:#007bff;border:none;border-radius:4px;bottom:20px;box-shadow:0 2px 5px #0003;color:#fff;cursor:pointer;padding:8px 15px;position:absolute;right:20px;transition:background-color .2s;z-index:6}.selection-toggle:hover{background-color:#0056b3}.selection-toggle.active{background-color:#dc3545}.pdf-controls{align-items:center;background-color:#ffffffe6;border-radius:4px;box-shadow:0 2px 5px #0003;display:flex;gap:5px;padding:4px 8px;position:absolute;right:10px;top:10px;z-index:20}.fullscreen-button,.zoom-button{align-items:center;background-color:#6c757d;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:.9rem;height:28px;justify-content:center;line-height:1;padding:6px 8px;transition:background-color .2s;width:28px}.fullscreen-button:hover,.zoom-button:hover{background-color:#5a6268}.fullscreen-button{font-size:16px;padding-bottom:2px}.fullscreen-button.active{background-color:#28a745}.fullscreen-button.active:hover{background-color:#218838}.zoom-display{font-size:14px;font-weight:500;margin:0 8px;min-width:44px;text-align:center;-webkit-user-select:none;user-select:none}@media (max-width:768px){.fullscreen-button,.zoom-button{font-size:16px;height:25px;width:25px}.zoom-display{font-size:12px;margin:0 5px}.pdf-controls{padding:3px;right:5px;top:5px}}.pdf-toolbar{background-color:#fff;border-bottom:1px solid #e0e0e0;box-shadow:0 2px 4px #0000001a;justify-content:space-between;padding:10px 15px;position:-webkit-sticky;position:sticky;top:0;z-index:15}.pdf-file-info,.pdf-toolbar{align-items:center;display:flex}.pdf-file-info{flex:1 1;gap:8px;min-width:0}.file-icon{flex-shrink:0;font-size:16px}.file-name{color:#333;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.change-file-btn,.file-name{font-size:14px;font-weight:500}.change-file-btn{background-color:#007bff;border:none;border-radius:4px;color:#fff;cursor:pointer;flex-shrink:0;padding:8px 16px;transition:background-color .2s}.change-file-btn:hover{background-color:#0056b3}.change-file-btn:active{background-color:#004085}@media (max-width:768px){.pdf-toolbar{padding:8px 12px}.file-name{font-size:13px;max-width:200px}.change-file-btn,.change-file-btn-float{font-size:13px;padding:6px 12px}}.page-placeholder{background:linear-gradient(135deg,#f5f5f5,#e8e8e8);border:1px solid #ddd;border-radius:2px;box-shadow:0 2px 5px #0000001a;transition:opacity .3s ease}.page-placeholder span{background-color:#fff;border-radius:4px;box-shadow:0 1px 3px #0000001a;padding:8px 16px}.user-status{height:40px}.loading-spinner{animation:spin 1s linear infinite;border:2px solid #f3f3f3;border-top-color:#4a90e2;height:20px;width:20px}.user-info{align-items:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:20px;cursor:pointer;display:flex;flex-direction:row;gap:8px;padding:5px 12px 5px 5px;transition:all .2s ease}.user-info:hover{background:#f1f5f9;border-color:#cbd5e1;box-shadow:0 2px 8px #0000000f}.user-avatar{border:none;border-radius:50%;box-shadow:none;flex-shrink:0;height:26px;position:relative;transition:all .2s ease;width:26px}.user-info:hover .user-avatar{transform:scale(1.05)}.user-info:active .user-avatar{transform:scale(.98)}.user-name{color:#475569;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;font-size:13px;font-weight:500;max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-arrow{color:#ffffffb3;font-size:10px;transition:transform .2s ease}.user-info:hover .dropdown-arrow{color:#fff}.user-menu{animation:menuSlideIn .2s ease-out;background:#fff;border-radius:8px;box-shadow:0 4px 20px #00000026;margin-top:8px;min-width:200px;overflow:hidden;position:absolute;right:0;top:100%;z-index:1000}@keyframes menuSlideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.user-menu-header{background-color:#f8fafc;padding:12px 16px}.user-email{color:#64748b;font-size:13px;word-break:break-all}.user-menu-divider{background-color:#e2e8f0;height:1px}.user-menu-item{background:none;border:none;color:#374151;cursor:pointer;font-size:14px;padding:12px 16px;text-align:left;transition:background-color .2s ease;width:100%}.user-menu-item:hover{background-color:#f3f4f6;color:#dc2626}.user-anonymous{gap:12px}.login-button{background:linear-gradient(135deg,#4a90e2,#357abd);border:none;border-radius:6px;color:#fff;font-size:14px;padding:8px 16px}.login-button:hover{background:linear-gradient(135deg,#357abd,#2563eb);box-shadow:0 2px 8px #4a90e24d;transform:translateY(-1px)}.login-button:active{transform:translateY(0)}.anonymous-indicator{background-color:#ffffff1a;border:1px solid #ffffff4d;border-radius:4px;color:#ffffffb3;font-size:12px;padding:4px 8px}@media (max-width:768px){.anonymous-indicator,.user-name{display:none}.user-menu{right:-8px}}@media (max-width:480px){.user-info{padding:4px 8px}.login-button{font-size:13px;padding:6px 12px}}@media (prefers-color-scheme:dark){.user-avatar{border:2px solid #ffffff26;box-shadow:0 3px 12px #00000040,0 1px 6px #0003,inset 0 1px 0 #ffffff26}.user-info:hover .user-avatar{border-color:#ffffff40;box-shadow:0 5px 20px #0000004d,0 3px 12px #00000040,inset 0 1px 0 #ffffff40,0 0 0 3px #ffffff14}.user-menu{background:#1e1e1e;box-shadow:0 4px 20px #0000004d}.user-menu-header{background-color:#2a2a2a}.user-email{color:#94a3b8}.user-menu-divider{background-color:#374151}.user-menu-item{color:#e1e1e1}.user-menu-item:hover{background-color:#374151;color:#ef4444}}.user-status:before{bottom:0;content:"";display:none;left:0;position:fixed;right:0;top:0;z-index:999}.user-authenticated:has(.user-menu):before{display:block}.user-status{align-items:center;display:flex;position:relative}.user-status.loading{height:40px;justify-content:center;width:40px}.loading-spinner{animation:spin .8s linear infinite;border:2px solid #e2e8f0;border-top-color:#3b82f6;height:18px;width:18px}.user-authenticated{position:relative}.user-status .user-authenticated .user-info{align-items:center!important;background:#f8fafc!important;border:1px solid #e2e8f0!important;border-radius:20px!important;cursor:pointer!important;display:flex!important;flex-direction:row!important;gap:8px!important;padding:4px 12px 4px 4px!important;transition:all .2s ease!important}.user-status .user-authenticated .user-info:hover{background:#f1f5f9!important;border-color:#cbd5e1!important;box-shadow:0 2px 8px #0000000f!important}.user-status .user-authenticated .user-name{color:#475569!important;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif!important;font-size:13px!important;font-weight:500!important;max-width:80px!important;overflow:hidden!important;text-overflow:ellipsis!important;white-space:nowrap!important}.user-info .cl-userButtonTrigger,.user-info [data-clerk-component=UserButton] button{background:#0000!important;border:none!important;border-radius:10px!important;box-shadow:none!important;padding:0!important}.user-info .cl-userButtonTrigger:focus,.user-info .cl-userButtonTrigger:focus-visible{box-shadow:none!important;outline:none!important}.user-status .cl-avatarBox,.user-status .cl-userButtonAvatarBox,.user-status [class*=cl-internal] span[class*=avatarBox]{border:none!important;border-radius:50%!important;box-shadow:none!important;height:26px!important;overflow:hidden!important;transition:all .2s ease!important;width:26px!important}.user-status .cl-avatarImage,.user-status .cl-userButtonAvatarImage{border-radius:50%!important;height:100%!important;object-fit:cover!important;width:100%!important}.user-status .user-info:hover .cl-avatarBox{transform:scale(1.05)!important}.clerk-popover{-webkit-backdrop-filter:blur(12px)!important;backdrop-filter:blur(12px)!important;border:1px solid #e2e8f099!important;border-radius:14px!important;box-shadow:0 20px 40px -8px #0000001f,0 8px 16px -4px #00000014!important;overflow:hidden!important}.clerk-actions{padding:6px!important}.user-anonymous{align-items:center;display:flex;gap:10px}.clerk-auth-buttons{align-items:center;display:flex;gap:6px}.login-button{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;color:#475569;cursor:pointer;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;font-size:13px;font-weight:500;padding:8px 14px;transition:all .2s ease}.login-button:hover{background:#f1f5f9;border-color:#cbd5e1;color:#1e293b}.signup-button{background:linear-gradient(135deg,#3b82f6,#2563eb);border:none;border-radius:8px;box-shadow:0 1px 3px #3b82f64d;color:#fff;cursor:pointer;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;font-size:13px;font-weight:500;padding:8px 14px;transition:all .2s ease}.signup-button:hover{box-shadow:0 4px 12px #3b82f659;transform:translateY(-1px)}.signup-button:active{transform:translateY(0)}.anonymous-indicator{display:none}@media (max-width:768px){.user-name{display:none}.clerk-auth-buttons{gap:4px}.login-button,.signup-button{font-size:12px;padding:6px 10px}}@media (max-width:480px){.clerk-avatar,.user-avatar.clerk-avatar{border-radius:8px!important;height:32px!important;width:32px!important}}.global-controls-pill{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;box-shadow:0 2px 8px #0000001a;gap:8px;right:20px;top:20px;transition:all .2s ease;z-index:1000}.global-controls-pill:hover{box-shadow:0 4px 12px #00000026}.pill-model-selector{background:#fff;border:1px solid #ddd;border-radius:12px;font-size:13px;outline:none;padding:4px 8px;transition:all .2s ease}.pill-model-selector:hover{border-color:#4a90e2;box-shadow:0 0 0 2px #4a90e21a}.pill-model-selector:focus{border-color:#4a90e2;box-shadow:0 0 0 3px #4a90e233}.pill-control-button{background:#fff;border:none;border-radius:50%;box-shadow:0 1px 3px #0000001a;font-size:16px;height:32px;transition:all .2s ease;width:32px}.pill-control-button:hover{background:#f0f0f0;box-shadow:0 2px 6px #00000026;transform:scale(1.05)}.pill-control-button:active{transform:scale(.95)}.prompt-debug-overlay{align-items:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000073;display:flex;inset:0;justify-content:center;position:fixed;z-index:1000}.prompt-debug-panel{background:#fff;border-radius:12px;box-shadow:0 8px 32px #0000002e;display:flex;flex-direction:column;max-height:85vh;max-width:680px;overflow:hidden;width:90%}.prompt-debug-header{align-items:center;border-bottom:1px solid #eee;display:flex;flex-shrink:0;justify-content:space-between;padding:16px 20px}.prompt-debug-title{align-items:center;display:flex;gap:8px}.prompt-debug-title h3{color:#1a1a1a;font-size:1.1rem;font-weight:600;margin:0}.prompt-debug-icon{font-size:1.2rem;opacity:.7}.prompt-debug-badge{background:#ff6b35;border-radius:4px;color:#fff;font-size:.65rem;font-weight:700;letter-spacing:.5px;padding:2px 6px;vertical-align:middle}.prompt-debug-close{background:none;border:none;color:#999;cursor:pointer;font-size:1.5rem;line-height:1;padding:0;transition:color .15s}.prompt-debug-close:hover{color:#333}.prompt-debug-body{display:flex;flex:1 1;flex-direction:column;gap:20px;overflow-y:auto;padding:16px 20px}.prompt-section{display:flex;flex-direction:column;gap:6px}.prompt-section-header{align-items:center;display:flex;justify-content:space-between}.prompt-section-label{color:#333;font-size:.85rem;font-weight:600}.prompt-section-reset{background:none;border:1px solid #ddd;border-radius:4px;color:#888;cursor:pointer;font-size:.85rem;padding:2px 6px;transition:all .15s}.prompt-section-reset:hover{background:#f5f5f5;border-color:#aaa;color:#333}.prompt-section-desc{color:#999;font-size:.78rem;line-height:1.4;margin:0}.prompt-section-textarea{background:#fafafa;border:1px solid #ddd;border-radius:6px;box-sizing:border-box;color:#333;font-family:SF Mono,Menlo,Monaco,Consolas,monospace;font-size:.88rem;line-height:1.5;padding:10px 12px;resize:vertical;transition:border-color .15s,box-shadow .15s;width:100%}.prompt-section-textarea:focus{background:#fff;border-color:#4a90e2;box-shadow:0 0 0 2px #4a90e226;outline:none}.prompt-slider-row{align-items:center;display:flex;gap:10px}.prompt-slider-label{color:#999;font-size:.78rem;min-width:12px;text-align:center}.prompt-slider{-webkit-appearance:none;appearance:none;background:#ddd;border-radius:2px;cursor:pointer;flex:1 1;height:4px;outline:none}.prompt-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:#4a90e2;border-radius:50%;cursor:pointer;height:16px;-webkit-transition:transform .1s;transition:transform .1s;width:16px}.prompt-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.prompt-debug-footer{align-items:center;border-top:1px solid #eee;display:flex;flex-shrink:0;justify-content:space-between;padding:14px 20px}.prompt-footer-right{display:flex;gap:8px}.prompt-btn{border:1px solid #0000;border-radius:6px;cursor:pointer;font-size:.85rem;font-weight:500;padding:7px 16px;transition:all .15s}.prompt-btn-reset{background:none;border-color:#ddd;color:#888}.prompt-btn-reset:hover{background:#fff0f0;border-color:#e88;color:#c44}.prompt-btn-cancel{background:#f5f5f5;border-color:#ddd;color:#666}.prompt-btn-cancel:hover{background:#eee}.prompt-btn-save{background:#e0e0e0;border:none;color:#999}.prompt-btn-save.active{background:#4a90e2;color:#fff}.prompt-btn-save.active:hover{background:#357abd}.prompt-btn-save:disabled{cursor:not-allowed;opacity:.6}.exam-context-section{background:#f0f7ff;border:1px solid #d0e3f7;border-radius:8px;padding:12px}.exam-context-section .prompt-section-textarea{background:#fff;border-color:#c8ddf0}.exam-context-section .prompt-section-textarea:focus{border-color:#4a90e2}.exam-context-icon{margin-right:4px}@media (max-width:768px){.prompt-debug-panel{max-height:92vh;width:95%}.prompt-debug-body{padding:12px 14px}}.ai-action-buttons{animation:fadeIn .2s ease-in-out;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background-color:#fffffff2;border-radius:6px;box-shadow:0 2px 8px #00000026;display:flex;gap:4px;padding:4px;position:fixed;transform:translate(-50%,-100%);z-index:1000}.ai-action-buttons button{border:none;border-radius:4px;cursor:pointer;font-size:12px;font-weight:500;min-width:40px;padding:4px 10px;transition:all .2s ease}.quote-btn{background-color:#4a90e2;color:#fff}.quote-btn:hover{background-color:#3a7bc8;transform:translateY(-1px)}.explain-btn{background-color:#28a745;color:#fff}.explain-btn:hover{background-color:#218838;transform:translateY(-1px)}.ai-action-buttons:after{border:5px solid #0000;border-top-color:#fffffff2;content:"";left:50%;margin-left:-5px;position:absolute;top:100%}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-90%)}to{opacity:1;transform:translate(-50%,-100%)}}mark.quote-highlight{animation:highlightFadeIn .3s ease-out;background-color:#4a90e240;border-radius:2px;padding:0 1px}.dark-mode mark.quote-highlight,[data-theme=dark] mark.quote-highlight{background-color:#4a90e259}@keyframes highlightFadeIn{0%{background-color:#4a90e280}to{background-color:#4a90e240}}:root{--primary-blue:#007bff;--primary-blue-hover:#0069d9;--primary-blue-light:#e7f3ff;--primary-blue-glow:#007bff1f;--bg-primary:#f8f9fa;--bg-secondary:#f1f3f5;--bg-white:#fff;--bg-hover:#e9ecef;--border-light:#e5e7eb;--border-medium:#dee2e6;--border-focus:#3b82f6;--text-primary:#1f2937;--text-secondary:#6c757d;--text-muted:#9ca3af;--text-white:#fff;--danger:#ef4444;--danger-light:#ef44441a;--glass-bg:#ffffffd9;--glass-border:#ffffff4d;--glass-shadow:0 8px 32px #0000001f,0 2px 8px #00000014;--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:20px;--space-2xl:24px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-pill:20px;--radius-full:50%;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001a;--ease-out:cubic-bezier(0.33,1,0.68,1);--ease-spring:cubic-bezier(0.34,1.56,0.64,1);--duration-fast:150ms;--duration-normal:250ms;--duration-slow:350ms}.conversation-sidebar{background:#fff;background:var(--bg-white);border-right:1px solid #e5e7eb;border-right:1px solid var(--border-light);box-shadow:4px 0 24px #00000014;display:flex;flex-direction:column;height:100vh;left:0;position:fixed;top:0;transform:translateX(-100%);transition:transform .35s cubic-bezier(.33,1,.68,1);transition:transform var(--duration-slow) var(--ease-out);width:320px;z-index:10001}.conversation-sidebar.sidebar-open{transform:translateX(0)}.conversation-sidebar.sidebar-closed{transform:translateX(-100%)}.sidebar-header{align-items:center;background:#fff;background:var(--bg-white);border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border-light);display:flex;flex-shrink:0;justify-content:space-between;padding:16px 20px;padding:var(--space-lg) var(--space-xl)}.sidebar-header h3{color:#1f2937;color:var(--text-primary);font-size:16px;font-weight:600;letter-spacing:-.02em;margin:0}.close-button{align-items:center;background:#f1f3f5;background:var(--bg-secondary);border:1px solid #e5e7eb;border:1px solid var(--border-light);border-radius:6px;border-radius:var(--radius-sm);color:#6c757d;color:var(--text-secondary);cursor:pointer;display:flex;font-size:16px;height:32px;justify-content:center;padding:0;transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out);width:32px}.close-button:hover{background:#fff;background:var(--bg-white);border-color:#dee2e6;border-color:var(--border-medium);color:#1f2937;color:var(--text-primary);transform:scale(1.05)}.close-button:active{transform:scale(.98)}.sidebar-content{flex:1 1;overflow-x:hidden;overflow-y:auto;padding:16px 0;padding:var(--space-lg) 0;scrollbar-color:#dee2e6 #0000;scrollbar-color:var(--border-medium) #0000;scrollbar-width:thin}.sidebar-content::-webkit-scrollbar{width:5px}.sidebar-content::-webkit-scrollbar-track{background:#0000;margin:12px 0;margin:var(--space-md) 0}.sidebar-content::-webkit-scrollbar-thumb{background:#dee2e6;background:var(--border-medium);border-radius:3px}.sidebar-content::-webkit-scrollbar-thumb:hover{background:#9ca3af;background:var(--text-muted)}.user-info-section{align-items:center;background:#f1f3f5;background:var(--bg-secondary);border:1px solid #e5e7eb;border:1px solid var(--border-light);border-radius:14px;border-radius:var(--radius-lg);display:flex;gap:12px;gap:var(--space-md);margin:0 16px 16px;margin:0 var(--space-lg) var(--space-lg) var(--space-lg);padding:12px 16px;padding:var(--space-md) var(--space-lg);transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out)}.user-info-section:hover{background:#fff;background:var(--bg-white);border-color:#dee2e6;border-color:var(--border-medium);box-shadow:0 1px 3px #0000000f;box-shadow:var(--shadow-sm)}.user-avatar-small{align-items:center;background:linear-gradient(135deg,#007bff,#0069d9);background:linear-gradient(135deg,var(--primary-blue) 0,var(--primary-blue-hover) 100%);border-radius:10px;border-radius:var(--radius-md);box-shadow:0 2px 8px #007bff40;color:#fff;color:var(--text-white);display:flex;flex-shrink:0;font-size:16px;font-weight:600;height:42px;justify-content:center;width:42px}.user-details{flex:1 1;min-width:0}.user-name{color:#1f2937;color:var(--text-primary);font-size:14px;font-weight:600;letter-spacing:-.01em;margin-bottom:4px;margin-bottom:var(--space-xs)}.user-email{color:#6c757d;color:var(--text-secondary);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.actions-section{padding:0}.new-conversation-button{align-items:center;background:linear-gradient(135deg,#007bff,#0069d9);background:linear-gradient(135deg,var(--primary-blue) 0,var(--primary-blue-hover) 100%);border:none;border-radius:10px;border-radius:var(--radius-md);box-shadow:0 2px 8px #007bff40;color:#fff;color:var(--text-white);cursor:pointer;display:flex;font-size:14px;font-weight:500;gap:8px;gap:var(--space-sm);justify-content:center;margin:0 16px 20px;margin:0 var(--space-lg) var(--space-xl) var(--space-lg);padding:12px 16px;padding:var(--space-md) var(--space-lg);transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out);width:calc(100% - 40px);width:calc(100% - var(--space-2xl) - var(--space-lg))}.new-conversation-button:hover{box-shadow:0 6px 20px #007bff4d;transform:translateY(-2px)}.new-conversation-button:active{box-shadow:0 4px 12px #007bff40;transform:translateY(-1px)}.new-conversation-button:disabled{box-shadow:none;cursor:not-allowed;opacity:.6;transform:none!important}.new-conversation-button span:first-child{font-size:16px;font-weight:500}.conversations-section{padding-top:8px;padding-top:var(--space-sm)}.conversations-section h4{color:#9ca3af;color:var(--text-muted);font-size:11px;font-weight:600;letter-spacing:.06em;margin:0 16px 12px;margin:0 var(--space-lg) var(--space-md) var(--space-lg);text-transform:uppercase}.conversations-list{padding:0 12px;padding:0 var(--space-md)}.conversation-item{align-items:center;background:#0000;border:1px solid #0000;border-radius:10px;border-radius:var(--radius-md);cursor:pointer;display:flex;gap:12px;gap:var(--space-md);margin-bottom:4px;margin-bottom:var(--space-xs);min-height:60px;padding:12px;padding:var(--space-md);position:relative;transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out)}.conversation-item:hover{background:#f1f3f5;background:var(--bg-secondary);border-color:#e5e7eb;border-color:var(--border-light)}.conversation-item.active{background:#e7f3ff;background:var(--primary-blue-light);border-color:#007bff33}.conversation-main{flex:1 1;min-width:0}.conversation-title{border-radius:6px;border-radius:var(--radius-sm);color:#1f2937;color:var(--text-primary);cursor:text;font-size:14px;font-weight:500;line-height:1.4;margin:-2px -4px 2px;overflow:hidden;padding:2px 4px;text-overflow:ellipsis;transition:color .15s;transition:color var(--duration-fast);white-space:nowrap}.conversation-title:hover{background:#007bff0f}.conversation-title-input{background:#fff;background:var(--bg-white);border:1px solid #007bff;border:1px solid var(--primary-blue);border-radius:6px;border-radius:var(--radius-sm);box-shadow:0 0 0 3px #007bff1a;font-size:14px;font-weight:500;margin:-2px -4px 2px;outline:none;padding:4px 8px;width:100%}.conversation-item:hover .conversation-title,.conversation-title-input{color:#1f2937;color:var(--text-primary)}.conversation-item.active .conversation-title{color:#007bff;color:var(--primary-blue);font-weight:600}.conversation-meta{align-items:center;color:#9ca3af;color:var(--text-muted);display:flex;flex-wrap:wrap;font-size:11px;gap:8px;gap:var(--space-sm)}.conversation-time{flex-shrink:0}.conversation-pdf{background:#007bff1f;background:var(--primary-blue-glow);border-radius:6px;border-radius:var(--radius-sm);color:#007bff;color:var(--primary-blue);flex-shrink:0;font-size:10px;font-weight:500;padding:2px 8px;padding:2px var(--space-sm)}.message-count{font-size:10px}.delete-button,.message-count{color:#9ca3af;color:var(--text-muted);flex-shrink:0}.delete-button{align-items:center;background:#0000;border:1px solid #0000;border-radius:6px;border-radius:var(--radius-sm);cursor:pointer;display:flex;font-size:14px;height:28px;justify-content:center;opacity:0;padding:8px;padding:var(--space-sm);transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out);width:28px}.conversation-item:hover .delete-button{opacity:1}.delete-button:hover{background:#ef44441a;background:var(--danger-light);border-color:#ef4444;border-color:var(--danger);color:#ef4444;color:var(--danger)}.delete-button:active{transform:scale(.92)}.empty-state,.error-message,.loading-container{align-items:center;color:#6c757d;color:var(--text-secondary);display:flex;flex-direction:column;justify-content:center;padding:24px 20px;padding:var(--space-2xl) var(--space-xl);text-align:center}.empty-state p,.loading-container p{color:#6c757d;color:var(--text-secondary);font-size:14px;margin:12px 0 0;margin:var(--space-md) 0 0 0}.empty-state small{color:#9ca3af;color:var(--text-muted);font-size:12px;margin-top:8px;margin-top:var(--space-sm)}.loading-spinner{animation:spin .9s linear infinite;border:2.5px solid #e5e7eb;border-top:2.5px solid #007bff;border:2.5px solid var(--border-light);border-radius:50%;border-radius:var(--radius-full);border-top-color:var(--primary-blue);height:28px;width:28px}.loading-spinner.small{border-width:2px;height:20px;width:20px}@keyframes spin{to{transform:rotate(1turn)}}.error-message{color:#ef4444;color:var(--danger)}.error-message p{margin:0 0 12px;margin:0 0 var(--space-md) 0}.retry-button{background:#fff;background:var(--bg-white);border:1px solid #dee2e6;border:1px solid var(--border-medium);border-radius:6px;border-radius:var(--radius-sm);color:#1f2937;color:var(--text-primary);font-size:13px;margin-top:8px;margin-top:var(--space-sm);padding:var(--space-sm) var(--space-lg);transition:all .25s cubic-bezier(.33,1,.68,1);transition:all var(--duration-normal) var(--ease-out)}.retry-button:hover{background:#f1f3f5;background:var(--bg-secondary);border-color:#007bff;border-color:var(--primary-blue);color:#007bff;color:var(--primary-blue)}.auth-prompt{color:#6c757d;color:var(--text-secondary);padding:24px;padding:var(--space-2xl);text-align:center}.auth-prompt p{font-size:14px;line-height:1.6;margin:0}@media (max-width:768px){.conversation-sidebar{max-width:320px;width:100%}}@media (max-width:480px){.conversation-sidebar{max-width:none;width:100vw}.sidebar-header{padding:16px;padding:var(--space-lg)}.sidebar-header h3{font-size:15px}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.close-button:focus-visible,.conversation-item:focus-visible,.delete-button:focus-visible,.new-conversation-button:focus-visible,.retry-button:focus-visible{outline:2px solid #007bff;outline:2px solid var(--primary-blue);outline-offset:2px}.conversation-sidebar.sidebar-open .sidebar-header{animation:fadeSlideDown .35s cubic-bezier(.33,1,.68,1) forwards;animation:fadeSlideDown var(--duration-slow) var(--ease-out) forwards}.conversation-sidebar.sidebar-open .user-info-section{animation:fadeSlideDown .35s cubic-bezier(.33,1,.68,1) 40ms forwards;animation:fadeSlideDown var(--duration-slow) var(--ease-out) 40ms forwards}.conversation-sidebar.sidebar-open .new-conversation-button{animation:fadeSlideDown .35s cubic-bezier(.33,1,.68,1) 80ms forwards;animation:fadeSlideDown var(--duration-slow) var(--ease-out) 80ms forwards}.conversation-sidebar.sidebar-open .conversations-section h4{animation:fadeSlideDown .35s cubic-bezier(.33,1,.68,1) .12s forwards;animation:fadeSlideDown var(--duration-slow) var(--ease-out) .12s forwards}.conversation-sidebar.sidebar-open .conversation-item{animation:fadeSlideRight .35s cubic-bezier(.33,1,.68,1) forwards;animation:fadeSlideRight var(--duration-slow) var(--ease-out) forwards}.conversation-sidebar.sidebar-open .conversation-item:first-child{animation-delay:.15s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(2){animation-delay:.18s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(3){animation-delay:.21s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(4){animation-delay:.24s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(5){animation-delay:.27s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(6){animation-delay:.3s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(7){animation-delay:.33s}.conversation-sidebar.sidebar-open .conversation-item:nth-child(8){animation-delay:.36s}@keyframes fadeSlideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeSlideRight{0%{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:translateX(0)}}*{box-sizing:border-box;margin:0;padding:0}body{background-color:#f8f9fa;color:#333;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6;overflow:hidden}.app-container{flex-direction:column;font-family:Arial,sans-serif}.app-container,.app-main{display:flex;height:100vh;overflow:hidden}.app-main{flex:1 1}.upload-container{align-items:center;background-color:#f5f5f5;display:flex;flex-direction:column;height:100%;justify-content:center;width:100%}.pdf-container{transition:transform .2s ease;will-change:transform}.page-visible{opacity:1;pointer-events:auto;position:relative;transform:translateX(0);visibility:visible}.page-hidden,.page-visible{display:flex!important;transition:transform .2s ease,opacity .2s ease;will-change:transform,opacity}.page-hidden{min-width:0!important;opacity:0;pointer-events:none;transform:translateX(-100%);visibility:hidden;width:0!important}.chat-container{background-color:#f8f9fa;border-left:1px solid #dee2e6;display:flex!important;flex-direction:column!important;height:100%!important;min-width:350px;overflow:hidden!important;position:relative!important}.chat-container,.original-chat-container,.quote-chat-container{min-height:0;transition:transform .2s ease;will-change:transform}.original-chat-container{border-right:1px solid #dee2e6}@media (max-width:768px){.pdf-workspace{flex-direction:column}.chat-container,.pdf-container{height:50%;width:100%!important}.dual-chat-container{flex-direction:column}.original-chat-container,.quote-chat-container{height:50%;width:100%}.original-chat-container{border-bottom:1px solid #dee2e6;border-right:none}.resizer{cursor:row-resize;height:10px;width:100%}.resizer:after{height:4px;width:50px}}.upload-container{background-color:#fff;border-radius:5px;box-shadow:0 2px 10px #0000001a;margin:2rem auto;max-width:800px;padding:2rem;text-align:center}.pdf-workspace{flex-direction:column;position:relative}.pdf-workspace,.workspace-content{display:flex;flex:1 1;height:100%;overflow:hidden;width:100%}.pdf-container{display:flex;flex-direction:column;height:100%;min-width:350px;overflow:hidden;transition:width .2s ease}.pdfViewer{background-color:#f0f0f0;height:100%;overflow-x:hidden!important;overflow-y:auto!important;width:100%}.no-transition{transition:none!important}.resizer{align-items:center;background-color:#dee2e6;cursor:col-resize;display:flex;flex-shrink:0;height:100%;justify-content:center;position:absolute;top:0;touch-action:none;transition:background-color .2s;width:8px;z-index:5}.resizer.dragging,.resizer:hover{background-color:#007bff}.resizer:after{background-color:#adb5bd;border-radius:1px;content:"";height:30px;width:2px}.resizer.dragging:after,.resizer:hover:after{background-color:#fff}.error-message{align-items:center;background-color:#f8d7da;border-radius:.25rem;box-shadow:0 2px 10px #0000001a;color:#721c24;display:flex;gap:.5rem;left:50%;max-width:80%;padding:.75rem 1.25rem;position:absolute;top:1rem;transform:translateX(-50%);z-index:100}.error-message p{flex:1 1}.error-message button{background:none;border:none;color:#721c24;cursor:pointer;font-weight:700}.screenshot-preview{background-color:#fff;border-radius:.25rem;box-shadow:0 2px 10px #0000001a;max-width:300px;padding:1rem;position:absolute;right:1rem;top:1rem;z-index:50}.screenshot-preview h3{font-size:1rem;margin-bottom:.5rem}.preview-image{border:1px solid #dee2e6;border-radius:.25rem;margin-bottom:.5rem;width:100%}.screenshot-actions{justify-content:flex-end}.screenshot-actions button{background-color:#007bff;border:none;border-radius:.25rem;color:#fff;cursor:pointer;font-size:.9rem;padding:.25rem .75rem;transition:background-color .2s}.screenshot-actions button:hover{background-color:#0069d9}.content-container{display:flex;flex-direction:row;gap:20px;min-height:600px}.pdf-viewer-wrapper{background-color:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;flex:1 1;max-height:800px;overflow:auto;padding:20px;position:relative}.no-pdf-message{align-items:center;border:2px dashed #e2e8f0;border-radius:4px;color:#718096;display:flex;font-style:italic;height:300px;justify-content:center}.right-panel{display:flex;flex:1 1;flex-direction:column}.screenshot-container{background-color:#fff;height:100%;padding:20px}.screenshot-container h3{align-self:flex-start;color:#333;margin-bottom:15px}.screenshot-preview{border:1px solid #e2e8f0;margin-bottom:15px;max-height:600px}.download-button{align-self:flex-start;background-color:#38a169;font-size:14px}.download-button:hover{background-color:#2f855a}.screenshot-container{align-items:center;background-color:#f8f9fa;border-radius:8px;box-shadow:0 2px 4px #0000001a;display:flex;flex-direction:column;margin-top:10px;padding:10px}.screenshot-preview{border:1px solid #ddd;border-radius:4px;margin:10px 0;max-height:500px;max-width:100%;object-fit:contain}.screenshot-actions{display:flex;gap:10px;justify-content:center;margin-top:10px;width:100%}.download-button{background-color:#4caf50;border:none;border-radius:4px;color:#fff;cursor:pointer;font-weight:500;padding:8px 16px;transition:background-color .2s}.download-button:hover{background-color:#45a049}.clear-button{background-color:#f44336;border:none;border-radius:4px;color:#fff;cursor:pointer;font-weight:500;padding:8px 16px;transition:background-color .2s}.clear-button:hover{background-color:#d32f2f}.retry-button{background-color:#2196f3;border:none;border-radius:4px;color:#fff;cursor:pointer;font-weight:500;padding:8px 16px;transition:background-color .2s}.retry-button:hover{background-color:#0b7dda}.screenshot-loading{align-items:center;animation:pulse 1.5s infinite;background-color:#f8f9fa;border-radius:8px;color:#555;display:flex;font-size:16px;height:200px;justify-content:center}.screenshot-error{background-color:#ffebee;border-radius:8px;color:#d32f2f;margin-top:10px;max-width:100%;padding:15px}.screenshot-error h3{color:#b71c1c;margin-top:0}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}.pdf-container{background-color:#fff;border:1px solid #ddd;border-radius:4px}.pdf-container,.react-pdf__Page{position:relative}.react-pdf__Page__textContent *{pointer-events:none!important}.debug-info{background-color:#f5f5f5;border:1px solid #ddd;border-radius:4px;color:#555;font-family:monospace;font-size:12px;margin:10px 0;max-height:150px;overflow-y:auto;padding:8px}.debug-info pre{margin:0;white-space:pre-wrap}.error-message{background-color:#ffebee;color:#c62828}.error-message,.success-message{border-radius:4px;font-weight:500;margin:10px 0;padding:10px}.success-message{background-color:#e8f5e9;color:#2e7d32}.chat-placeholder{align-items:center;background-color:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;color:#718096;display:flex;flex-direction:column;height:100%;justify-content:center;line-height:1.8;padding:20px;text-align:center}.chat-messages{flex:1 1;overflow-y:auto;padding:15px}.chat-input-container{border-top:1px solid #e2e8f0;display:flex;padding:15px}.chat-input{border:1px solid #e2e8f0;border-radius:4px;flex:1 1;margin-right:10px;padding:10px}.send-button{background-color:#4285f4;border:none;border-radius:4px;color:#fff;cursor:pointer;padding:10px 20px}.react-pdf__Document{align-items:center;display:flex;flex-direction:column}.react-pdf__Page{margin-bottom:20px;max-width:100%}.react-pdf__Page__canvas{border:1px solid #e2e8f0;display:block;height:auto!important;margin:0 auto;max-width:100%!important}.react-pdf__message{color:#718096;padding:20px}.pdf-page,.react-pdf__Page__textContent{-webkit-user-select:none!important;user-select:none!important}.react-pdf__Page__textContent{cursor:crosshair!important}.react-pdf__Page__annotations{-webkit-user-select:none!important;user-select:none!important}.react-pdf__Page__textContent span{pointer-events:none!important}.chat-controls{background-color:#f1f3f5;border-bottom:1px solid #e9ecef;display:flex;justify-content:flex-end;padding:8px 12px}.system-prompt-button{background-color:#6c757d;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.85rem;padding:6px 12px;transition:background-color .2s}.system-prompt-button:hover{background-color:#5a6268}.system-prompt-button:focus{box-shadow:0 0 0 .2rem #6c757d40;outline:none}.original-chat-container,.quote-chat-container{display:flex!important;flex-direction:column!important;height:100%!important;overflow:hidden!important;position:relative!important}.chat-header.with-button{align-items:center;display:flex;justify-content:space-between;padding:.5rem 1rem}.return-button{background-color:#f8f9fa;border:1px solid #ced4da;border-radius:4px;cursor:pointer;font-size:.875rem;padding:.25rem .75rem;transition:all .2s}.return-button:hover{background-color:#e9ecef}.ai-quote-message{background-color:#f1f8ff;border-left:3px solid #0366d6;border-radius:4px;display:flex;margin:.5rem 0;padding:.5rem}.quoted-content{background-color:#0366d60d;font-style:italic}@media (max-width:768px){.workspace-content{flex-direction:column}.chat-container,.original-chat-container,.pdf-container,.quote-chat-container{height:50%;width:100%!important}.original-chat-container{border-bottom:1px solid #dee2e6;border-right:none}.resizer{cursor:row-resize;height:10px;width:100%}.resizer:after{height:4px;width:50px}}.hidden{display:none!important}.main-chat-container.as-left-panel{border-right:1px solid #dee2e6}.viewport-indicator{align-items:center;background-color:#f8f9fa;border-bottom:1px solid #dee2e6;display:flex;justify-content:space-between;padding:8px 16px;z-index:10}.viewport-title{color:#495057;font-size:14px;font-weight:500}.viewport-dots{align-items:center;display:flex;gap:8px}.viewport-dots .dot{color:#6c757d;cursor:pointer;font-size:16px;transition:color .2s}.viewport-dots .dot:hover{color:#495057}.viewport-dots .dot.active{color:#007bff}.toolbar-button{align-items:center;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);background:#ffffffd9;border:1px solid #ffffff4d;border-radius:22px;box-shadow:0 8px 32px #0000001f,0 2px 8px #00000014,inset 0 1px 0 #ffffff80;color:#374151;cursor:pointer;display:flex;font-size:14px;height:44px;justify-content:center;min-width:44px;padding:10px 16px;transition:all .3s cubic-bezier(.4,0,.2,1)}.toolbar-button:hover{background:#fff;box-shadow:0 8px 25px #00000026,inset 0 1px 0 #fffc;color:#111827;transform:translateY(-2px) scale(1.05)}.toolbar-button:active{box-shadow:0 4px 12px #0000001a,inset 0 1px 0 #ffffff80;transform:translateY(-1px) scale(1.02)}.zoom-button{font-size:13px;font-weight:600}.pdf-floating-controls{align-items:center;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);background:#ffffffd9;border:1px solid #ffffff4d;border-radius:18px;box-shadow:0 4px 16px #00000014,0 1px 4px #0000000a,inset 0 1px 0 #ffffff80;display:flex;gap:4px;height:32px;left:50%;padding:6px 10px;position:absolute;top:12px;transform:translateX(-50%);z-index:20}.floating-button{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffe6;border:1px solid #fff6;border-radius:10px;box-shadow:0 1px 3px #0000000f,inset 0 1px 0 #fff9;color:#374151;cursor:pointer;display:flex;font-size:11px;font-weight:600;height:24px;justify-content:center;padding:0;transition:all .3s cubic-bezier(.4,0,.2,1);width:24px}.floating-button:hover{background:#fff;box-shadow:0 8px 25px #00000026,inset 0 1px 0 #fffc;color:#111827;transform:translateY(-2px) scale(1.05)}.floating-button:active{box-shadow:0 4px 12px #0000001a,inset 0 1px 0 #fff9;transform:translateY(-1px) scale(1.02)}.floating-zoom-display{align-items:center;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffb3;border:1px solid #ffffff4d;border-radius:12px;box-shadow:inset 0 1px 0 #fff6,0 1px 2px #0000000f;color:#374151;display:flex;font-size:10px;font-weight:600;height:20px;justify-content:center;min-width:32px;padding:2px 6px;text-align:center}.floating-button.ocr-button{font-size:10px;margin-right:8px;max-width:50px;min-width:32px;overflow:hidden;padding:4px 8px;position:relative;width:auto}.floating-button.ocr-button.processing{animation:pulse-ocr 2s ease-in-out infinite;background:linear-gradient(135deg,#3b82f6,#1d4ed8);border-color:#3b82f64d;color:#fff}.floating-button.ocr-button.processing:before{animation:scanning 1.5s linear infinite;background:linear-gradient(90deg,#0000,#ffffff4d,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;width:100%}.floating-button.ocr-button.completed{background:linear-gradient(135deg,#10b981,#059669);border-color:#10b9814d;color:#fff}.floating-button.ocr-button.completed:hover{background:linear-gradient(135deg,#34d399,#10b981)}.floating-button.ocr-button:disabled{cursor:not-allowed;opacity:1}.ocr-result-card{align-items:center;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fff9;border:1px solid #fff9;border-radius:14px;box-shadow:0 1px 3px #0000000a;display:flex;gap:2px;margin-right:6px;padding:2px}.ocr-toggle-button{align-items:center;border:none;border-radius:12px;cursor:pointer;display:flex;font-size:13px;height:24px;justify-content:center;padding:0;transition:all .2s ease;width:28px}.ocr-toggle-button.inactive{background:#e5e7eb;color:#9ca3af}.ocr-toggle-button.inactive:hover{background:#d1d5db;color:#6b7280}.ocr-toggle-button.active{background:#3b82f6;color:#fff}.ocr-toggle-button.active:hover{background:#2563eb}.ocr-result-card .ocr-delete-button{align-items:center;background:#0000;border:none;border-radius:12px;color:#9ca3af;cursor:pointer;display:flex;font-size:16px;font-weight:300;height:24px;justify-content:center;line-height:1;padding:0;transition:all .15s ease;width:20px}.ocr-result-card .ocr-delete-button:hover{background:#ef44441a;color:#dc2626}@keyframes pulse-ocr{0%,to{box-shadow:0 0 0 0 #3b82f6b3}50%{box-shadow:0 0 0 8px #3b82f600}}@keyframes scanning{0%{left:-100%}to{left:100%}}.global-controls-pill{right:12px;z-index:30}.global-controls-pill,.viewport-pill{align-items:center;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);background:#ffffffd9;border:1px solid #ffffff4d;border-radius:20px;box-shadow:0 6px 24px #0000001a,0 1px 6px #0000000f,inset 0 1px 0 #ffffff80;display:flex;gap:6px;height:36px;padding:8px 12px;position:absolute;top:12px}.viewport-pill{left:50%;transform:translateX(-50%);z-index:25}.pill-dot{background:linear-gradient(135deg,#e5e7eb,#d1d5db);border:none;border-radius:50%;box-shadow:0 1px 3px #00000014,inset 0 1px 0 #ffffff80;cursor:pointer;height:12px;padding:0;transition:all .4s cubic-bezier(.4,0,.2,1);width:12px}.pill-dot:hover{background:linear-gradient(135deg,#d1d5db,#9ca3af);box-shadow:0 4px 8px #00000026,inset 0 1px 0 #fff9;transform:scale(1.15)}.pill-dot.active{background:linear-gradient(135deg,#374151,#1f2937);box-shadow:0 0 12px #3741514d,0 2px 6px #00000026,inset 0 1px 0 #fff3;transform:scale(1.2)}.pill-model-selector{-webkit-appearance:none;appearance:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffe6;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");background-position:right 4px center;background-repeat:no-repeat;background-size:12px;border:1px solid #fff6;border-radius:8px;box-shadow:0 1px 4px #00000014,inset 0 1px 0 #fff9;color:#374151;cursor:pointer;font-family:SF Pro Display,-apple-system,BlinkMacSystemFont,sans-serif;font-size:11px;font-weight:500;height:20px;min-width:70px;padding:2px 20px 2px 6px;transition:all .3s cubic-bezier(.4,0,.2,1)}.pill-model-selector:hover{background:#fff;box-shadow:0 4px 12px #0000001f,inset 0 1px 0 #fffc;color:#111827;transform:translateY(-1px) scale(1.02)}.pill-model-selector:focus{border-color:#3b82f680;box-shadow:0 0 0 3px #3b82f61a,0 1px 4px #00000014;outline:none}.pill-control-button{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffe6;border:1px solid #fff6;border-radius:8px;box-shadow:0 1px 4px #00000014,inset 0 1px 0 #fff9;color:#374151;cursor:pointer;display:flex;font-family:SF Pro Display,-apple-system,BlinkMacSystemFont,sans-serif;font-size:12px;font-weight:500;height:20px;justify-content:center;padding:0;transition:all .3s cubic-bezier(.4,0,.2,1);width:20px}.pill-control-button:hover{background:#fff;box-shadow:0 4px 12px #0000001f,inset 0 1px 0 #fffc;color:#111827;transform:translateY(-1px) scale(1.05)}.pill-control-button:active{box-shadow:0 1px 4px #00000014,inset 0 1px 0 #fff9;transform:translateY(0) scale(1.02)}.page-tab{background-color:initial;border:none;border-bottom:3px solid #0000;color:#6c757d;cursor:pointer;flex:1 1;font-size:14px;font-weight:500;padding:12px 16px;transition:all .2s ease}.page-tab:hover{background-color:#e9ecef;color:#495057}.page-tab.active{background-color:#fff;border-bottom-color:#007bff;color:#007bff}.page-tab:focus{box-shadow:inset 0 0 0 2px #007bff40;outline:none}.App{text-align:center}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion:no-preference){.App-logo{animation:App-logo-spin 20s linear infinite}}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;min-height:100vh}.App-link{color:#61dafb}@keyframes App-logo-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.remove-quote-message{align-items:center;background:#ffffffe6;border:1px solid #ddd;border-radius:3px;cursor:pointer;display:flex;font-size:14px;height:20px;justify-content:center;line-height:1;opacity:.7;position:absolute;right:8px;top:8px;transition:opacity .2s,background-color .2s;width:20px}.remove-quote-message:hover{background-color:#f8f9fa;color:#dc3545;opacity:1}.ai-quote-message{position:relative}