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h3{margin:0;font-size:12px;font-weight:600;color:var(--text-h);text-transform:uppercase;letter-spacing:.5px}.doc-count{margin-left:auto;background:var(--accent-bg);color:var(--accent);padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.stat-row{display:flex;align-items:center;justify-content:center;gap:24px}.stat-item{display:flex;flex-direction:column;align-items:center;gap:4px}.stat-value{font-size:20px;font-weight:700;color:var(--accent)}.stat-label{font-size:12px;color:var(--text)}.stat-divider{width:1px;height:28px;background:var(--border)}@media (max-width: 768px){.sidebar{position:fixed;left:0;top:56px;height:calc(100vh - 56px);width:280px;transform:translate(-100%) scale(.95);opacity:0;z-index:110;box-shadow:none;transition:transform .35s cubic-bezier(.32,.72,0,1),opacity .3s cubic-bezier(.32,.72,0,1);border-top:1px solid var(--border);pointer-events:none}.sidebar.collapsed,.sidebar.mobile-open{pointer-events:auto}.sidebar.collapsed{width:56px;transform:translate(0) scale(1);opacity:1;z-index:50;height:calc(100vh - 56px);box-shadow:none}.sidebar.mobile-open{transform:translate(0) scale(1);opacity:1;box-shadow:0 10px 40px #00000026,0 2px 10px #0000001a;z-index:110}.sidebar.collapsed .sidebar-toggle-btn{display:flex;animation:bounceIn .4s cubic-bezier(.34,1.56,.64,1)}.sidebar-toggle-btn{width:40px;height:40px;border-radius:10px;margin:0 auto}.sidebar.collapsed .sidebar-header{padding:10px;border-bottom:none}.sidebar.collapsed .documents-section{padding:4px}.sidebar.mobile-open .sidebar-header{animation:slideInFromLeft .4s cubic-bezier(.32,.72,0,1)}.sidebar.mobile-open .upload-section{animation:slideInFromLeft .4s cubic-bezier(.32,.72,0,1) .05s both}.sidebar.mobile-open .documents-section{animation:slideInFromLeft .4s cubic-bezier(.32,.72,0,1) .1s both}.sidebar.mobile-open 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sidebarCollapse{0%{width:280px}to{width:64px}}.chat-area{flex:1;display:flex;flex-direction:column;background:var(--card-bg)}.messages-container{flex:1;overflow-y:auto;overflow-x:hidden;padding:24px;min-height:0;display:flex;flex-direction:column}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover{background:var(--accent)}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:40px 20px}.welcome-icon{width:64px;height:64px;background:var(--accent-bg);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:24px}.welcome-title{margin:0 0 8px;font-size:24px;font-weight:600;color:var(--text-h)}.welcome-subtitle{margin:0 0 32px;font-size:14px;color:var(--text)}.quick-questions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:600px}.quick-question-btn{padding:12px 20px;background:var(--accent-bg);border:1px solid var(--accent-border);border-radius:20px;font-size:14px;color:var(--text-h);cursor:pointer;transition:all .15s ease}.quick-question-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.messages-list{display:flex;flex-direction:column;gap:20px}.message-wrapper{display:flex}.message-wrapper.user{justify-content:flex-end}.message-wrapper.assistant{justify-content:flex-start}.message{display:flex;gap:12px;width:fit-content;max-width:75%;box-sizing:border-box;transition:all .3s cubic-bezier(.25,.46,.45,.94)}.message.assistant{width:fit-content;max-width:75%;animation:messageSlideIn .3s ease-out}.message.user{width:fit-content;max-width:75%;justify-content:flex-end;flex-direction:row-reverse}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.message.user .avatar{background:var(--accent);color:#fff}.message.assistant .avatar{background:var(--accent-bg);color:var(--accent)}.message.assistant .message-text{background:linear-gradient(135deg,var(--accent-bg) 0%,rgba(186,156,255,.08) 100%);border:1px solid rgba(186,156,255,.15);box-shadow:0 2px 12px #ba9cff14;border-radius:16px 16px 16px 4px}.message.user .message-text{background:linear-gradient(135deg,var(--accent) 0%,#9b7cf6 100%);color:#fff;box-shadow:0 4px 16px #ba9cff4d;border-radius:16px 16px 4px}.ai-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover}.message-content-wrapper{display:flex;flex-direction:column;gap:8px;max-width:calc(100% - 48px);box-sizing:border-box}.message-text{padding:12px 16px;border-radius:12px;line-height:1.5;font-size:14px;word-break:break-word;overflow-wrap:anywhere;max-width:100%;box-sizing:border-box;transition:all .3s cubic-bezier(.25,.46,.45,.94)}.message-text>p{display:inline;margin:0}.typing-indicator{display:inline-flex;gap:6px;margin-left:4px;vertical-align:middle}.typing-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:typing-bounce 1.4s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.message-text :deep(h1),.message-text :deep(h2),.message-text :deep(h3){margin:.1em 0 .05em;font-weight:600}.message-text :deep(p){margin:0;line-height:1.6}.message-text :deep(ul),.message-text :deep(ol){margin:0;padding-left:1.5em}.message-text :deep(li){margin:0}.message-text :deep(code){background:rgba(0,0,0,.06);padding:.2em 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var(--accent);width:100%;max-width:520px;box-sizing:border-box;min-width:280px}.sources-header{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--text-h);margin-bottom:10px}.sources-list{display:flex;flex-direction:column;gap:8px}.source-item{display:flex;align-items:center;gap:10px;padding:8px 10px;background:var(--card-bg);border:1px solid var(--accent-border);border-radius:6px;min-width:240px}.source-index{width:20px;height:20px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;flex-shrink:0}.source-details{flex:1;min-width:0}.source-name{font-size:13px;color:var(--text-h);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.source-meta{font-size:11px;color:var(--text);margin-top:2px}.input-container{padding:16px 24px 20px;background:var(--card-bg);border-top:1px solid var(--border)}.input-wrapper{display:flex;gap:12px;align-items:flex-end}.message-input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:24px;font-size:14px;line-height:1.5;resize:none;max-height:120px;font-family:inherit;background:var(--bg);color:var(--text-h);outline:none;transition:border-color .15s ease}.message-input:focus{border-color:var(--accent)}.message-input::placeholder{color:var(--text)}.send-button{width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s ease;flex-shrink:0}.send-button:hover:not(:disabled){background:var(--accent-hover)}.send-button:disabled{opacity:.5;cursor:not-allowed}.spinner{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.input-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px}.input-hint{font-size:12px;color:var(--text)}.generating-indicator{display:flex;align-items:center;gap:8px}.indicator-text{font-size:12px;color:var(--accent)}.indicator-dot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.message-enter-active,.message-leave-active{transition:all .2s ease}.message-enter-from{opacity:0;transform:translateY(8px)}.message-leave-to{opacity:0;transform:scale(.98)}@media (min-width: 641px) and (max-width: 768px){.message,.message.assistant{width:fit-content;max-width:85%}.message.user{width:fit-content;max-width:85%;flex-direction:row-reverse}.message-content-wrapper{max-width:calc(100% - 44px)}.messages-container{padding:20px}.avatar{width:32px;height:32px}}@media (max-width: 640px){.messages-container{padding:16px 12px;width:calc(100vw - 56px);box-sizing:border-box}.message{width:fit-content;max-width:calc(100vw - 80px);gap:8px}.message.assistant{width:fit-content;max-width:calc(100vw - 80px)}.message.user{width:fit-content;max-width:calc(100vw - 80px);flex-direction:row-reverse}.message-content-wrapper{max-width:calc(100vw - 116px)}.avatar{width:28px;height:28px;flex-shrink:0}.message-text{padding:10px 14px;font-size:14px;line-height:1.5}.sources-section{margin-top:6px;padding:10px}.sources-header{font-size:11px;margin-bottom:8px}.source-item{padding:6px 8px}.quick-questions{flex-direction:column;gap:10px}.quick-question-btn{width:100%;padding:10px 16px;font-size:13px}.input-container{padding:12px}.message-input{font-size:15px;padding:10px 12px}.send-button{width:40px;height:40px}.welcome-screen{padding:24px 16px}.welcome-icon{width:56px;height:56px;margin-bottom:20px}.welcome-title{font-size:20px}.welcome-subtitle{font-size:13px;margin-bottom:24px}}@media (max-width: 375px){.message{width:fit-content;gap:6px}.message.assistant{max-width:calc(100vw - 72px)}.message.user{max-width:calc(100vw - 72px);flex-direction:row-reverse}.message-content-wrapper{max-width:calc(100vw - 108px)}.avatar{width:26px;height:26px}.message-text{padding:8px 12px;font-size:13px}.messages-container{padding:12px 8px;width:calc(100vw - 56px)}}.chat-page{height:100vh;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow:hidden;background:var(--bg)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0;position:relative;z-index:200}.header-left{display:flex;align-items:center;gap:12px;min-width:120px}.header-center{position:absolute;left:50%;transform:translate(-50%)}.chat-container{flex:1;display:flex;overflow:hidden;position:relative;min-height:0}.sidebar-overlay{position:fixed;top:56px;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:90;cursor:pointer;animation:fadeIn .3s cubic-bezier(.25,.46,.45,.94)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 768px){.chat-header{padding:10px 16px;position:fixed;top:0;left:0;right:0;z-index:200}.chat-container{padding-left:56px;padding-top:56px;height:calc(100vh - 56px)}.header-left{min-width:auto}}:root{--text: #6B7280;--text-h: #1F2937;--bg: #FAFAFA;--card-bg: #FFFFFF;--border: #EDE9FE;--code-bg: #F5F3FF;--accent: #A78BFA;--accent-hover: #8B5CF6;--accent-bg: rgba(167, 139, 250, .1);--accent-border: rgba(167, 139, 250, .3);--secondary: #5EEAD4;--secondary-bg: rgba(94, 234, 212, .1);--success: #10B981;--error: #EF4444;--social-bg: rgba(245, 243, 255, .5);--shadow: rgba(167, 139, 250, .1) 0 10px 15px -3px, rgba(167, 139, 250, .05) 0 4px 6px -2px;--sans: system-ui, "Segoe UI", Roboto, sans-serif;--heading: system-ui, "Segoe UI", Roboto, sans-serif;--mono: ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (max-width: 1024px){:root{font-size:16px}}@media (prefers-color-scheme: dark){:root{--text: #9CA3AF;--text-h: #F9FAFB;--bg: #111827;--card-bg: #1F2937;--border: #374151;--code-bg: #1F2937;--accent: #C4B5FD;--accent-hover: #A78BFA;--accent-bg: rgba(167, 139, 250, .15);--accent-border: rgba(167, 139, 250, .3);--secondary: #34D399;--secondary-bg: rgba(94, 234, 212, .1);--social-bg: rgba(31, 41, 55, .5);--shadow: rgba(0, 0, 0, .4) 0 10px 15px -3px, rgba(0, 0, 0, .25) 0 4px 6px -2px}#social .button-icon{filter:invert(1) brightness(2)}}body{margin:0}h1,h2{font-family:var(--heading);font-weight:500;color:var(--text-h)}h1{font-size:56px;letter-spacing:-1.68px;margin:32px 0}@media (max-width: 1024px){h1{font-size:36px;margin:20px 0}}h2{font-size:24px;line-height:118%;letter-spacing:-.24px;margin:0 0 8px}@media (max-width: 1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);display:inline-flex;border-radius:4px;color:var(--text-h)}code{font-size:15px;line-height:135%;padding:4px 8px;background:var(--code-bg)}.counter{font-size:16px;padding:5px 10px;border-radius:5px;color:var(--accent);background:var(--accent-bg);border:2px solid transparent;transition:border-color .3s;margin-bottom:24px}.counter:hover{border-color:var(--accent-border)}.counter:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#app{min-height:100svh}