:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color:#1e293b;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}a{color:inherit;text-decoration:none}button{font-family:inherit}#root{width:100%;height:100vh}.layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:250px;background:linear-gradient(180deg,#1e3a8a,#1e40af);color:#fff;display:flex;flex-direction:column;box-shadow:2px 0 8px #0000001a}.sidebar-header{padding:2rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-header h1{margin:0;font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#fff,#e0e7ff,#c7d2fe);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:.08em;text-shadow:0 2px 10px rgba(255,255,255,.2);position:relative;display:inline-block}.nav-list{list-style:none;padding:1rem 0;margin:0;flex:1}.nav-list li{margin:.25rem 0}.nav-list a{display:flex;align-items:center;padding:.875rem 1.5rem;color:#fffc;text-decoration:none;transition:all .2s;gap:.75rem}.nav-list a:hover{background:#ffffff1a;color:#fff}.nav-list a.active{background:#ffffff26;color:#fff;border-left:3px solid white}.nav-icon{font-size:1.25rem}.nav-label{font-size:.95rem;font-weight:500}.main-content{flex:1;overflow:hidden;background:#f5f7fa;display:flex;flex-direction:column;height:100vh;max-height:100vh}.main-content-wrapper{flex:1;overflow-y:auto;min-height:0;height:0}.site-footer{flex-shrink:0;padding:1rem 2rem;text-align:center;background:#fff;border-top:1px solid #e2e8f0;z-index:5}.icp-info{margin:0;font-size:.875rem;color:#64748b}.icp-link{color:#64748b;text-decoration:none;transition:color .2s}.icp-link:hover{color:#3b82f6;text-decoration:underline}.home-container{padding:2rem;max-width:1200px;margin:0 auto;animation:fadeInUp .6s ease-out}.home-content{text-align:center}.home-title{font-size:2.5rem;background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;font-weight:800;letter-spacing:.05em;text-shadow:0 4px 20px rgba(102,126,234,.3);animation:fadeInUp .8s ease-out .1s both;position:relative;display:inline-block}.home-title:after{content:"";position:absolute;bottom:-8px;left:0;width:100%;height:3px;background:linear-gradient(90deg,#667eea,#764ba2,#f093fb);border-radius:2px;opacity:.6;animation:slideIn .8s ease-out .3s both}@keyframes slideIn{0%{width:0;opacity:0}to{width:100%;opacity:.6}}.home-description{font-size:1.125rem;color:#64748b;margin-bottom:3rem;animation:fadeInUp .8s ease-out .2s both}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:3rem}.feature-card{background:#fff;padding:2rem;border-radius:16px;box-shadow:0 2px 8px #00000014;transition:all .3s cubic-bezier(.4,0,.2,1);border:1px solid #e2e8f0;position:relative;overflow:hidden;animation:fadeInUp .8s ease-out both}.feature-card:nth-child(1){animation-delay:.3s}.feature-card:nth-child(2){animation-delay:.4s}.feature-card:nth-child(3){animation-delay:.5s}.feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,#3b82f6,#2563eb);transform:scaleX(0);transform-origin:left;transition:transform .3s}.feature-card:hover:before{transform:scaleX(1)}.feature-card:hover{transform:translateY(-6px);box-shadow:0 8px 24px #2563eb26;border-color:#3b82f6}.feature-icon{font-size:3rem;margin-bottom:1rem;display:inline-block;animation:bounceIn .6s ease-out .2s both}@keyframes bounceIn{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.feature-card h3{font-size:1.5rem;background:linear-gradient(135deg,#3b82f6,#2563eb,#1d4ed8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem;font-weight:700;letter-spacing:.02em;text-shadow:0 2px 12px rgba(59,130,246,.2);position:relative;display:inline-block}.feature-card p{color:#64748b;margin-bottom:1rem;line-height:1.6}.feature-link{display:inline-flex;align-items:center;gap:.5rem;color:#3b82f6;text-decoration:none;font-weight:500;transition:all .3s;position:relative}.feature-link:after{content:"→";transition:transform .3s}.feature-link:hover{color:#2563eb;gap:.75rem}.feature-link:hover:after{transform:translate(4px)}.quick-start{background:#fff;padding:2rem;border-radius:16px;box-shadow:0 2px 8px #00000014;text-align:left;max-width:800px;margin:0 auto;border:1px solid #e2e8f0;animation:fadeInUp .8s ease-out .6s both}.quick-start h2{background:linear-gradient(135deg,#0ea5e9,#3b82f6,#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;font-size:1.75rem;font-weight:700;letter-spacing:.03em;text-shadow:0 3px 15px rgba(14,165,233,.25);position:relative;display:inline-block}.quick-start ol{padding-left:1.5rem;counter-reset:step-counter}.quick-start li{color:#475569;margin-bottom:.75rem;line-height:1.8;position:relative;padding-left:.5rem;transition:color .2s}.quick-start li::marker{color:#3b82f6;font-weight:600}.quick-start li:hover{color:#1e293b}.tech-stack{background:#fff;padding:2rem;border-radius:16px;box-shadow:0 2px 8px #00000014;text-align:center;margin:3rem auto;max-width:800px;border:1px solid #e2e8f0;animation:fadeInUp .8s ease-out .7s both}.tech-stack h2{background:linear-gradient(135deg,#10b981,#059669,#047857);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1.5rem;font-size:1.75rem;font-weight:700;letter-spacing:.02em}.tech-logos{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:2rem;align-items:center;justify-items:center}.tech-item{display:flex;flex-direction:column;align-items:center;gap:.75rem;transition:transform .3s;cursor:pointer}.tech-item:hover{transform:translateY(-8px)}.tech-item img{width:60px;height:60px;object-fit:contain;filter:drop-shadow(0 4px 8px rgba(0,0,0,.1));transition:filter .3s}.tech-item:hover img{filter:drop-shadow(0 6px 12px rgba(59,130,246,.3))}.tech-item span{font-size:.875rem;color:#64748b;font-weight:500}.system-architecture{margin:3rem auto;max-width:1000px;animation:fadeInUp .8s ease-out .8s both}.system-architecture h2{text-align:center;background:linear-gradient(135deg,#ec4899,#d946ef,#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:2rem;font-size:1.75rem;font-weight:700;letter-spacing:.02em}.architecture-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.architecture-card{background:#fff;padding:1.5rem;border-radius:16px;box-shadow:0 2px 8px #00000014;border:1px solid #e2e8f0;transition:all .3s cubic-bezier(.4,0,.2,1)}.architecture-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #ec489926;border-color:#ec4899}.architecture-card h3{background:linear-gradient(135deg,#f59e0b,#d97706);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;font-size:1.25rem;font-weight:700}.flow-image{width:100%;height:auto;border-radius:12px;margin-bottom:1rem;border:1px solid #e2e8f0;transition:transform .3s}.architecture-card:hover .flow-image{transform:scale(1.02)}.architecture-card p{color:#64748b;line-height:1.6;font-size:.95rem}.scut-section{margin:3rem auto;max-width:900px;position:relative;border-radius:16px;overflow:hidden;box-shadow:0 4px 16px #0000001a;animation:fadeInUp .8s ease-out .9s both}.scut-image{width:100%;height:300px;object-fit:cover;display:block}.scut-overlay{position:absolute;inset:0;background:linear-gradient(135deg,#3b82f6d9,#8b5cf6d9);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;opacity:0;transition:opacity .3s}.scut-section:hover .scut-overlay{opacity:1}.scut-overlay h3{font-size:2rem;font-weight:700;margin-bottom:.5rem;text-shadow:0 2px 8px rgba(0,0,0,.3)}.scut-overlay p{font-size:1.125rem;font-weight:500;text-shadow:0 1px 4px rgba(0,0,0,.3)}@media(max-width:768px){.home-container{padding:1.5rem}.home-title{font-size:2rem}.home-description{font-size:1rem}.feature-grid{grid-template-columns:1fr;gap:1.5rem}.feature-card{padding:1.5rem}.tech-logos{grid-template-columns:repeat(2,1fr);gap:1.5rem}.architecture-grid{grid-template-columns:1fr}.scut-image{height:200px}.scut-overlay h3{font-size:1.5rem}.scut-overlay p{font-size:1rem}}.conversation-sidebar{width:280px;height:100%;background-color:#f8f9fa;border-right:1px solid #e0e0e0;display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:16px;border-bottom:1px solid #e0e0e0}.new-conversation-btn{width:100%;padding:12px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease}.new-conversation-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.new-conversation-btn:active{transform:translateY(0)}.new-conversation-btn .icon{font-size:16px}.conversation-list{flex:1;overflow-y:auto;padding:8px}.conversation-list::-webkit-scrollbar{width:6px}.conversation-list::-webkit-scrollbar-thumb{background-color:#0003;border-radius:3px}.conversation-list::-webkit-scrollbar-thumb:hover{background-color:#0000004d}.empty-conversations{text-align:center;padding:40px 20px;color:#999}.empty-conversations p{margin:8px 0}.empty-conversations .hint{font-size:12px;color:#bbb}.conversation-item{padding:12px;margin-bottom:4px;background-color:#fff;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;justify-content:space-between;align-items:center;gap:8px;position:relative}.conversation-item:hover{background-color:#f0f0f0;transform:translate(2px)}.conversation-item.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 2px 8px #667eea4d}.conversation-item.active .conversation-meta{color:#fffc}.conversation-content{flex:1;min-width:0;overflow:hidden}.conversation-title{font-size:14px;font-weight:500;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.title-edit-input{width:100%;padding:4px 8px;font-size:14px;border:2px solid #667eea;border-radius:4px;outline:none;background-color:#fff;color:#333}.conversation-meta{font-size:11px;color:#999;display:flex;align-items:center;gap:4px}.conversation-meta .separator{opacity:.5}.conversation-actions{display:none;gap:4px}.conversation-item:hover .conversation-actions{display:flex}.action-btn{padding:4px 8px;background-color:#ffffffe6;border:1px solid #e0e0e0;border-radius:4px;cursor:pointer;font-size:14px;transition:all .2s ease;line-height:1}.action-btn:hover{background-color:#fff;transform:scale(1.1)}.conversation-item.active .action-btn{background-color:#fff3;border-color:#ffffff4d}.conversation-item.active .action-btn:hover{background-color:#ffffff4d}.delete-btn:hover{background-color:#fee;border-color:#fcc}@media(max-width:768px){.conversation-sidebar{position:fixed;left:0;top:0;z-index:1000;transform:translate(-100%);transition:transform .3s ease}.conversation-sidebar.mobile-open{transform:translate(0)}}.chat-page-layout{display:flex;height:100%;width:100%;overflow:hidden}.chat-container{display:flex;flex-direction:column;flex:1;height:100%;background:#f8fafc;overflow:hidden;min-height:0}.chat-header{background:linear-gradient(135deg,#fff,#f8fafc);padding:1.25rem 2rem;border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 3px #0000000d}.chat-header h2{margin:0;background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.5rem;font-weight:700;letter-spacing:.03em;text-shadow:0 2px 15px rgba(99,102,241,.25);position:relative;display:inline-block}.chat-header>div{display:flex;align-items:center;gap:.75rem}.upload-button{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem 1.25rem;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:10px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #6366f14d;position:relative;overflow:hidden}.upload-button:hover{transform:translateY(-2px);box-shadow:0 4px 16px #6366f166;background:linear-gradient(135deg,#4f46e5,#7c3aed)}.chat-settings{position:relative}.settings-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,#e0e7ff,#ede9fe);border:1px solid rgba(99,102,241,.2);border-radius:10px;cursor:pointer;font-size:1.2rem;transition:all .3s cubic-bezier(.4,0,.2,1);color:#6366f1}.settings-toggle:hover{background:linear-gradient(135deg,#c7d2fe,#ddd6fe);border-color:#6366f166;transform:rotate(90deg) scale(1.05);box-shadow:0 2px 8px #6366f140;color:#4f46e5}.quick-settings{position:absolute;top:calc(100% + .75rem);right:0;background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:1.25rem;box-shadow:0 8px 24px #0000001f;z-index:100;min-width:240px;animation:slideDown .3s cubic-bezier(.4,0,.2,1)}.setting-group{margin-bottom:1rem}.setting-group:last-child{margin-bottom:0}.setting-group label{display:block;font-size:.8125rem;font-weight:500;color:#475569;margin-bottom:.5rem}.setting-group input[type=range]{width:100%;margin:0;appearance:none;height:6px;border-radius:3px;background:#e2e8f0;outline:none;transition:background .2s}.setting-group input[type=range]:hover{background:#cbd5e1}.setting-group input[type=range]::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);cursor:pointer;box-shadow:0 2px 6px #6366f14d;transition:transform .2s}.setting-group input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.setting-group input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);cursor:pointer;border:none;box-shadow:0 2px 6px #6366f14d;transition:transform .2s}.setting-group input[type=range]::-moz-range-thumb:hover{transform:scale(1.2)}.quick-settings .checkbox-group{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:#475569}.quick-settings .checkbox-group input{margin-right:.35rem}.session-documents{background:#fff;border-bottom:1px solid #e2e8f0;padding:1rem 2rem;margin:0;box-shadow:0 1px 3px #0000000d}.session-documents-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}.session-documents-header>span:first-child{font-size:.875rem;font-weight:600;color:#1e293b;display:flex;align-items:center;gap:.5rem}.session-documents-uploading{font-size:.8125rem;color:#6366f1;display:flex;align-items:center;gap:.5rem;animation:pulse 2s ease-in-out infinite}.voice-toggle{margin:0 .75rem;padding:.75rem 1rem;border-radius:999px;border:1px solid #cbd5f5;background:#eef2ff;color:#4338ca;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:80px}.voice-toggle.active{background:#fee2e2;border-color:#fecaca;color:#dc2626;animation:pulse 1s infinite}.voice-toggle:disabled{opacity:.5;cursor:not-allowed}.voice-status-line{margin-top:.35rem;font-size:.85rem;color:#475569;display:flex;gap:.75rem;flex-wrap:wrap}.voice-status-text{color:#475569}.voice-error-inline{color:#dc2626}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.session-documents-list{display:flex;flex-wrap:wrap;gap:.75rem}.session-document-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;transition:all .3s cubic-bezier(.4,0,.2,1);cursor:default}.session-document-item:hover{background:#f1f5f9;border-color:#6366f1;transform:translateY(-2px);box-shadow:0 4px 12px #6366f126}.session-document-icon{font-size:1.25rem;flex-shrink:0}.session-document-name{font-size:.875rem;color:#1e293b;font-weight:500;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-document-size{font-size:.75rem;color:#64748b;margin-left:auto}.session-document-time{font-size:.75rem;color:#94a3b8}.session-documents-empty{padding:1.5rem;text-align:center;color:#94a3b8;font-size:.875rem;font-style:italic}.messages-container{flex:1;overflow-y:auto;padding:2rem;background:#f8fafc}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:#f1f5f9;border-radius:4px}.messages-container::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.messages-container::-webkit-scrollbar-thumb:hover{background:#94a3b8}.empty-state{display:flex;justify-content:center;align-items:center;height:100%;color:#64748b;font-size:1.125rem}.empty-state-content{text-align:center;max-width:600px;padding:2rem;animation:fadeInUp .6s ease-out}.empty-state-image{width:100%;max-width:400px;height:auto;margin-bottom:2rem;border-radius:12px;box-shadow:0 4px 16px #0000001a;transition:transform .3s}.empty-state-image:hover{transform:scale(1.05)}.empty-state-content h3{font-size:1.5rem;color:#1e293b;margin-bottom:.75rem;font-weight:600}.empty-state-content p{color:#64748b;margin-bottom:.5rem;line-height:1.6}.empty-hint{margin-top:1.5rem;padding:1rem;background:linear-gradient(135deg,#eff6ff,#dbeafe);border-left:4px solid #3b82f6;border-radius:8px;font-size:.95rem;color:#1e40af}.message{display:flex;gap:1rem;margin-bottom:1.5rem;animation:fadeIn .4s cubic-bezier(.4,0,.2,1)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{width:40px;height:40px;display:flex;align-items:center;justify-content:center;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1));animation:bounceIn .5s cubic-bezier(.68,-.55,.265,1.55)}.message-avatar .avatar-image{width:100%;height:100%;object-fit:contain;border-radius:50%}@keyframes bounceIn{0%{transform:scale(0)}50%{transform:scale(1.1)}to{transform:scale(1)}}.message-content{background:#fff;padding:1rem 1.25rem;border-radius:14px;box-shadow:0 2px 8px #00000014;max-width:70%;border:1px solid #e2e8f0;transition:box-shadow .3s}.message-content:hover{box-shadow:0 4px 12px #0000001f}.message.user .message-content{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border-color:#fff3}.message.error .message-content{background:#fef2f2;color:#991b1b;border-color:#fecaca}.message-content p{margin:0 0 .5rem;line-height:1.7;white-space:pre-wrap;word-wrap:break-word;color:#1e293b}.message.user .message-content p{color:#fff}.web-search-sources{margin-top:.75rem;padding:.75rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;color:#0f172a}.message.user .web-search-sources{background:#ffffff26;border-color:#ffffff4d;color:#fff}.web-search-sources summary{cursor:pointer;font-weight:600;outline:none}.web-search-sources ul{margin:.5rem 0 0;padding-left:1rem}.web-search-sources li{margin-bottom:.5rem;line-height:1.5}.web-search-sources a{color:#2563eb;text-decoration:underline}.message.user .web-search-sources a{color:#bfdbfe}.web-search-sources p{margin:.35rem 0 0;font-size:.9rem;color:#475569}.message.user .web-search-sources p{color:#ffffffd9}.web-search-empty{margin:.35rem 0 0;font-size:.9rem;color:#475569}.message-content ul,.message-content ol{margin:.5rem 0;padding-left:1.5rem;color:#1e293b}.message-content li{margin:.25rem 0;line-height:1.7}.message-content pre{background:#f8fafc;padding:.75rem;border-radius:8px;overflow-x:auto;margin:.5rem 0;border:1px solid #e2e8f0}.message-content code{font-family:Consolas,Monaco,Courier New,monospace;font-size:.9em;color:#1e293b}.message-content pre code{background:transparent;padding:0}.message-content :not(pre)>code{background:#f1f5f9;padding:.125rem .375rem;border-radius:4px;color:#dc2626;border:1px solid #e2e8f0}.message-content h1,.message-content h2,.message-content h3,.message-content h4{margin:.75rem 0 .5rem;font-weight:600;color:#1e293b}.message-content blockquote{border-left:3px solid #6366f1;padding-left:1rem;margin:.5rem 0;color:#64748b;font-style:italic}.message-content table{border-collapse:collapse;width:100%;margin:.5rem 0}.message-content th,.message-content td{border:1px solid #e2e8f0;padding:.5rem;text-align:left;color:#1e293b}.message-content th{background:#f8fafc;font-weight:600}.message-time{font-size:.75rem;color:#94a3b8;display:inline-flex;align-items:center;margin-top:0}.message.user .message-time{color:#fffc}.message-footer{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-top:.75rem}.tts-play-button{border:none;background:#eef2ff;color:#4f46e5;padding:.35rem .85rem;border-radius:999px;font-size:.85rem;cursor:pointer;display:inline-flex;align-items:center;gap:.35rem;margin-left:auto;transition:all .2s ease;box-shadow:0 2px 6px #6366f126}.tts-play-button:hover:not(:disabled){background:#6366f1;color:#fff;box-shadow:0 4px 12px #6366f140}.tts-play-button.playing{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff}.tts-play-button:disabled{background:#e2e8f0;color:#94a3b8;cursor:not-allowed;box-shadow:none;opacity:.85}.typing-indicator{display:flex;gap:.375rem;padding:.5rem 0}.typing-indicator span{width:8px;height:8px;background:#6366f1;border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0);opacity:.5}40%{transform:scale(1);opacity:1}}.input-container{background:#fff;padding:1.5rem 2rem;border-top:1px solid #e2e8f0;display:flex;gap:1rem;box-shadow:0 -1px 3px #0000000d}.input-container textarea{flex:1;padding:.875rem 1.25rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;font-family:inherit;font-size:.95rem;resize:none;outline:none;transition:all .3s cubic-bezier(.4,0,.2,1);color:#1e293b;line-height:1.6}.input-container textarea::placeholder{color:#94a3b8}.input-container textarea:focus{background:#fff;border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.input-container textarea:disabled{background:#f1f5f9;cursor:not-allowed;opacity:.6}.input-container button{padding:.875rem 2rem;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:12px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;box-shadow:0 2px 8px #6366f14d}.input-container button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 16px #6366f166;background:linear-gradient(135deg,#4f46e5,#7c3aed)}.input-container button:active:not(:disabled){transform:translateY(0)}.input-container button:disabled{background:#cbd5e1;cursor:not-allowed;opacity:.6;box-shadow:none}.web-search-toggle-bar{display:flex;justify-content:flex-start;padding:0 2rem;margin-top:.35rem}.web-search-toggle{background:#f8fafc;color:#0f172a;border:1px solid #dbeafe;box-shadow:none;padding:.5rem 1.25rem;font-size:.85rem;border-radius:999px;width:240px;text-align:center}.web-search-toggle.active{background:#ecfeff;border-color:#38bdf8;color:#0369a1}.web-search-toggle:disabled{background:#e2e8f0;color:#94a3b8}.inline-llm-selector{margin-left:1rem;display:flex;align-items:center}.inline-llm-selector select{padding:.45rem 1rem;border-radius:999px;border:1px solid #dbeafe;background:#f8fafc;font-size:.9rem;color:#0f172a;cursor:pointer;transition:all .2s ease;box-shadow:inset 0 1px 3px #0f172a0d}.inline-llm-selector select:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 3px #6366f133;background:#fff}.inline-llm-selector select:disabled{cursor:not-allowed;opacity:.6;background:#e2e8f0}@media(max-width:768px){.chat-page-layout{flex-direction:column}.message-content{max-width:85%}.chat-header{padding:1rem 1.5rem}.chat-header h2{font-size:1.25rem}.session-documents{padding:.75rem 1.5rem}.session-document-item{flex-wrap:wrap}.session-document-name{max-width:150px}.input-container{padding:1rem 1.5rem}}.documents-container{padding:2rem;max-width:1400px;margin:0 auto;animation:fadeInUp .5s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.documents-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;animation:fadeInUp .6s ease-out .1s both}.documents-header h2{margin:0;background:linear-gradient(135deg,#3b82f6,#2563eb,#1d4ed8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.75rem;font-weight:700;letter-spacing:.02em;text-shadow:0 3px 18px rgba(59,130,246,.3);position:relative;display:inline-block}.upload-button{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-radius:10px;cursor:pointer;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #2563eb40;border:none;position:relative;overflow:hidden}.upload-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.upload-button:hover{transform:translateY(-2px);box-shadow:0 4px 16px #2563eb59;background:linear-gradient(135deg,#2563eb,#1d4ed8)}.upload-button:hover:before{left:100%}.upload-button:active{transform:translateY(0)}.upload-button input[type=file]{display:none}.upload-progress{background:#fff;padding:1rem 1.5rem;border-radius:12px;margin-bottom:1.5rem;box-shadow:0 2px 8px #00000014;border:1px solid #e2e8f0;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.upload-progress p{margin:0 0 .5rem;color:#475569;font-weight:500}.progress-bar{height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#2563eb);transition:width .3s ease;border-radius:4px;animation:shimmer 2s infinite}@keyframes shimmer{0%{background-position:-1000px 0}to{background-position:1000px 0}}.documents-content{min-height:400px}.documents-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:1.5rem;animation:fadeInUp .6s ease-out .2s both}.documents-conversation-list{background:#fff;border-radius:12px;box-shadow:0 2px 8px #00000014;padding:.75rem;max-height:520px;overflow-y:auto;border:1px solid #e2e8f0}.documents-conversation-list::-webkit-scrollbar{width:6px}.documents-conversation-list::-webkit-scrollbar-track{background:#f1f5f9;border-radius:3px}.documents-conversation-list::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}.documents-conversation-list::-webkit-scrollbar-thumb:hover{background:#94a3b8}.documents-conversation-item{padding:.75rem;border-radius:10px;cursor:pointer;margin-bottom:.25rem;transition:all .3s cubic-bezier(.4,0,.2,1);border:1px solid transparent}.documents-conversation-item:hover{background:#f8fafc;transform:translate(4px);border-color:#e2e8f0}.documents-conversation-item.active{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-color:#fff3;box-shadow:0 2px 8px #2563eb40}.documents-conversation-item.active .documents-conversation-meta{color:#ffffffe6}.documents-conversation-title{font-size:.95rem;font-weight:500;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.documents-conversation-meta{font-size:.8rem;color:#64748b}.documents-session-content{background:#fff;border-radius:12px;box-shadow:0 2px 8px #00000014;padding:1.25rem 1.5rem;min-height:360px;border:1px solid #e2e8f0}.documents-session-header h3{margin:0 0 1rem;font-size:1.05rem;color:#1f2933;font-weight:600}.documents-session-thread-id{font-size:.85rem;color:#6b7280;font-family:Consolas,Monaco,monospace}.loading,.empty-state{display:flex;flex-direction:column;justify-content:center;align-items:center;height:400px;color:#64748b;font-size:1.125rem}.empty-state p{margin:.5rem 0}.documents-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.document-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 2px 8px #00000014;display:flex;align-items:flex-start;gap:1rem;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;border:1px solid #e2e8f0;animation:fadeInUp .5s ease-out both}.document-card:nth-child(1){animation-delay:.1s}.document-card:nth-child(2){animation-delay:.2s}.document-card:nth-child(3){animation-delay:.3s}.document-card:nth-child(4){animation-delay:.4s}.document-card:nth-child(5){animation-delay:.5s}.document-card:nth-child(6){animation-delay:.6s}.document-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#3b82f6,#2563eb);border-radius:12px 12px 0 0;transform:scaleX(0);transform-origin:left;transition:transform .3s}.document-card:hover:before{transform:scaleX(1)}.document-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #2563eb26;border-color:#3b82f6}.document-icon{font-size:2.5rem;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1));transition:transform .3s}.document-card:hover .document-icon{transform:scale(1.1) rotate(5deg)}.document-info{flex:1;min-width:0}.document-info h3{margin:0 0 .5rem;color:#1e293b;font-size:1rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-meta{display:flex;gap:.5rem;color:#64748b;font-size:.875rem;margin:0 0 .5rem;flex-wrap:wrap}.status-badge{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.75rem;font-weight:500;transition:transform .2s}.status-badge:hover{transform:scale(1.05)}.status-badge.processed{background:#d1fae5;color:#065f46}.status-badge.processing{background:#fef3c7;color:#92400e;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.delete-button{background:none;border:none;font-size:1.25rem;cursor:pointer;padding:.5rem;opacity:.5;transition:all .3s;border-radius:6px;color:#64748b}.delete-button:hover{opacity:1;background:#fef2f2;color:#dc2626;transform:scale(1.1)}@media(max-width:1024px){.documents-layout{grid-template-columns:1fr}.documents-conversation-list{max-height:200px}}@media(max-width:768px){.documents-container{padding:1.5rem}.documents-header{flex-direction:column;align-items:flex-start;gap:1rem}.documents-grid{grid-template-columns:1fr}}*{box-sizing:border-box}#root{width:100%;height:100vh;margin:0;padding:0}