@import"https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&display=swap";:root{--background: #faf7f2;--foreground: #1b1b1b;--card: #ffffff;--primary: #133323;--primary-strong: #0d2519;--secondary: #d4e8d4;--muted: #f0ede6;--muted-foreground: #6b6b6b;--accent: #c1e1c1;--border: #e0dcd3;--danger: #d4183d;--warning: #b78618;--success: #2d5c3f;--sidebar-width: 280px;font-family:IBM Plex Sans,Segoe UI,system-ui,sans-serif;color:var(--foreground);background:var(--background)}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}#root{min-height:100vh}h1,h2,h3,p{margin:0}.app-shell{min-height:100vh;display:flex;position:relative}.app-shell.drag-over{outline:3px dashed var(--primary);outline-offset:-3px}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#faf7f2eb,#f0ede6e0),var(--background)}.auth-card{width:min(360px,100%);display:flex;flex-direction:column;align-items:center;gap:14px;border:1px solid var(--border);border-radius:12px;background:#fffffff0;padding:34px 28px;text-align:center;box-shadow:0 18px 44px #1b433214}.auth-card.org-card{width:min(420px,100%)}.auth-logo{width:72px;height:72px;object-fit:contain}.auth-card h1{font-family:"Instrument Serif",Georgia,serif;color:var(--primary);font-size:36px;line-height:1.1;font-weight:400}.auth-copy{color:var(--muted-foreground);font-size:14px;line-height:1.5}.auth-button{width:100%;margin-top:8px}.org-form{width:100%;display:flex;flex-direction:column;gap:14px}.form-field{display:flex;flex-direction:column;gap:7px;color:var(--foreground);font-size:13px;font-weight:600;text-align:left}.org-form input{width:100%;min-height:40px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--foreground);padding:10px 12px;outline:none}.org-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #c1e1c1a6}.toggle-row{display:flex;align-items:center;gap:10px;color:var(--foreground);font-size:13px;line-height:1.4;text-align:left}.toggle-row input{width:16px;height:16px;min-height:0;margin:0;padding:0;flex:0 0 16px;accent-color:var(--primary)}.error-text{margin-top:10px;color:var(--danger);font-size:13px}.button{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;border:1px solid transparent;padding:0 14px;font-size:13px;font-weight:700;transition:background .16s ease,border-color .16s ease}.button:disabled{cursor:not-allowed;opacity:.55}.button.primary{background:var(--primary);color:#fff}.button.primary:hover:not(:disabled){background:var(--primary-strong)}.button.secondary{background:var(--muted);border-color:var(--border);color:var(--primary)}.button.secondary:hover:not(:disabled){background:var(--secondary)}.sidebar{width:var(--sidebar-width);flex:0 0 var(--sidebar-width);display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--card);overflow:hidden}.brand-lockup{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--border)}.brand-logo{width:36px;height:36px;object-fit:contain}.brand-name{font-family:"Instrument Serif",Georgia,serif;font-size:22px;font-weight:400;color:var(--primary)}.sidebar-actions{padding:12px 16px}.new-chat-btn{width:100%}.session-list{flex:1;overflow-y:auto;padding:4px 12px;display:flex;flex-direction:column;gap:2px}.session-item{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:8px;cursor:pointer;color:var(--foreground);font-size:13px;transition:background .12s}.session-item:hover{background:var(--muted)}.session-item.active{background:var(--secondary);font-weight:600}.session-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-delete{opacity:0;background:none;border:none;color:var(--muted-foreground);padding:4px;border-radius:4px;display:flex;align-items:center}.session-item:hover .session-delete{opacity:1}.session-delete:hover{color:var(--danger);background:#d4183d14}.sidebar-footer{margin-top:auto;padding:14px 20px;border-top:1px solid var(--border)}.sidebar-footer .tenant-name{font-size:13px;font-weight:700;color:var(--primary)}.sidebar-footer .user-email{font-size:12px;color:var(--muted-foreground);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{margin-top:10px;width:100%;min-height:32px;font-size:12px}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--background)}.empty-chat{flex:1;display:flex;align-items:center;justify-content:center;padding:40px}.empty-chat-content{text-align:center;max-width:440px;color:var(--muted-foreground)}.empty-chat-content>svg{margin-bottom:16px;color:var(--primary);opacity:.6}.empty-chat-logo{width:88px;height:88px;object-fit:contain;border-radius:8px;margin-bottom:16px}.button svg{flex:0 0 auto}.empty-chat-content h2{font-size:22px;color:var(--foreground);margin-bottom:8px}.empty-chat-content p{font-size:14px;line-height:1.55}.empty-chat-actions{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}.document-bar{display:flex;align-items:center;gap:10px;min-height:92px;padding:10px 20px;border-bottom:1px solid var(--border);background:#ffffffb3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.document-bar-docs{flex:1;display:flex;align-items:stretch;gap:10px;min-width:0;overflow-x:auto;padding-bottom:2px}.document-bar-empty{display:flex;align-items:center;color:var(--muted-foreground);font-size:13px}.doc-preview-tile{display:grid;grid-template-columns:50px minmax(0,128px);align-items:center;gap:10px;width:196px;flex:0 0 196px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--foreground);padding:6px;text-align:left;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease}.doc-preview-tile:hover,.doc-preview-tile.active{border-color:var(--primary);box-shadow:0 0 0 3px #c1e1c173}.doc-preview-frame{width:50px;height:64px;border:1px solid var(--border);border-radius:5px;background:#fff;overflow:hidden}.doc-preview-frame iframe{width:180px;height:232px;border:0;transform:scale(.28);transform-origin:top left;pointer-events:none;background:#fff}.doc-preview-meta{min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:6px}.doc-preview-name{width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:700}.doc-status{font-size:10px;font-weight:700;text-transform:uppercase;padding:1px 5px;border-radius:3px}.doc-status.ready{color:var(--success);background:#2d5c3f1a}.doc-status.processing{color:var(--warning);background:#b786181a}.doc-status.error{color:var(--danger);background:#d4183d1a}.attach-btn{min-height:32px;font-size:12px}.messages-container{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.empty-messages{flex:1;display:flex;align-items:center;justify-content:center}.empty-messages p{color:var(--muted-foreground);font-size:14px;text-align:center;max-width:400px}.message{display:flex}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-bubble{max-width:72%;padding:12px 16px;border-radius:12px;font-size:14px;line-height:1.55}.message.user .message-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.message.assistant .message-bubble{background:var(--card);border:1px solid var(--border);color:var(--foreground);border-bottom-left-radius:4px}.message-text{margin:0;white-space:pre-wrap;word-break:break-word}.citation-ref-wrapper{position:relative;display:inline}.citation-ref{display:inline;background:#c1e1c180;border:none;color:var(--primary);font-weight:700;font-size:12px;padding:1px 3px;border-radius:3px;cursor:pointer;vertical-align:super;line-height:1}.citation-ref:hover{background:var(--secondary)}.citation-popover{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);z-index:1000;width:320px;border:1px solid var(--border);border-radius:10px;background:var(--card);box-shadow:0 12px 40px #00000024;overflow:hidden}.citation-popover-header{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--muted);font-size:12px}.citation-doc-name{flex:1;font-weight:700;color:var(--foreground);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.citation-page{color:var(--muted-foreground);font-size:11px}.citation-close{background:none;border:none;color:var(--muted-foreground);padding:2px;display:flex;border-radius:4px}.citation-close:hover{color:var(--foreground);background:var(--border)}.citation-popover-body{padding:14px}.citation-excerpt{font-size:13px;line-height:1.5;color:var(--foreground)}.citation-highlight{background:#ffeb3b59;border-left:3px solid #f9a825;padding:6px 10px;display:block;border-radius:0 6px 6px 0}.citation-bbox-indicator{margin-top:8px;font-size:11px;color:var(--muted-foreground)}.typing-indicator{display:flex;gap:4px;padding:4px 0}.typing-indicator span{width:7px;height:7px;border-radius:50%;background:var(--muted-foreground);animation:typing-bounce 1.4s ease-in-out infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}.input-area{padding:16px 20px;border-top:1px solid var(--border);background:#ffffffb3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.input-row{display:flex;align-items:center;gap:8px;max-width:800px;margin:0 auto}.input-attach-btn{background:none;border:none;color:var(--muted-foreground);padding:8px;border-radius:8px;display:flex}.input-attach-btn:hover{color:var(--primary);background:var(--muted)}.chat-input{flex:1;min-height:42px;border:1px solid var(--border);border-radius:10px;padding:10px 16px;background:var(--card);color:var(--foreground);outline:none;font-size:14px}.chat-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #c1e1c180}.send-btn{background:var(--primary);border:none;color:#fff;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center}.send-btn:hover:not(:disabled){background:var(--primary-strong)}.send-btn:disabled{opacity:.4;cursor:not-allowed}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:900;background:#0006;display:flex;align-items:center;justify-content:center;padding:24px}.upload-dialog{width:min(520px,100%);border-radius:14px;background:var(--card);box-shadow:0 24px 60px #0000002e;overflow:hidden}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.dialog-header h2{font-size:17px}.dialog-close{background:none;border:none;color:var(--muted-foreground);padding:6px;border-radius:6px;display:flex}.dialog-close:hover{background:var(--muted);color:var(--foreground)}.drop-zone{margin:20px;padding:40px 20px;border:2px dashed var(--border);border-radius:12px;text-align:center;color:var(--muted-foreground);cursor:pointer;transition:border-color .16s,background .16s}.drop-zone:hover,.drop-zone.active{border-color:var(--primary);background:#c1e1c126}.drop-zone p{margin-top:10px;font-size:14px}.drop-zone-hint{font-size:12px;color:var(--muted-foreground);margin-top:4px;display:block}.upload-status{text-align:center;color:var(--primary);font-size:13px;font-weight:600;padding:0 20px 16px}.upload-notice{position:fixed;right:20px;bottom:20px;z-index:1200;display:flex;align-items:center;gap:8px;max-width:min(360px,calc(100vw - 40px));border:1px solid var(--border);border-radius:8px;background:var(--card);box-shadow:0 12px 32px #0000001f;padding:10px 12px;color:var(--foreground);font-size:13px;line-height:1.4}.upload-notice.success{border-color:#2d5c3f40;color:var(--success)}.upload-notice.error{border-color:#d4183d40;color:var(--danger)}.upload-notice span{flex:1;color:var(--foreground)}.upload-notice button{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border:none;border-radius:6px;background:transparent;color:var(--muted-foreground);padding:0}.upload-notice button:hover{background:var(--muted);color:var(--foreground)}.document-drawer{position:fixed;top:0;right:0;bottom:0;z-index:1000;width:min(520px,100vw);display:flex;flex-direction:column;border-left:1px solid var(--border);background:var(--card);box-shadow:-18px 0 44px #00000029}.document-drawer-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border);background:var(--card)}.document-drawer-header h2{max-width:390px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;line-height:1.35;margin-bottom:6px}.document-viewer{flex:1;width:100%;border:0;background:var(--muted)}.existing-docs-section{padding:0 22px 20px}.existing-docs-section h3{font-size:13px;font-weight:700;color:var(--muted-foreground);margin-bottom:10px}.existing-docs-list{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto}.existing-doc-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--foreground);font-size:13px;text-align:left;width:100%;transition:background .12s}.existing-doc-item:hover{background:var(--muted)}.existing-doc-item span:first-of-type{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-size{color:var(--muted-foreground);font-size:11px}.drag-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1100;background:#1b433214;display:flex;align-items:center;justify-content:center;pointer-events:none}.drag-overlay-content{text-align:center;color:var(--primary);padding:40px;border:3px dashed var(--primary);border-radius:16px;background:#ffffffe6}.drag-overlay-content p{margin-top:10px;font-size:16px;font-weight:600}@media (max-width: 768px){.sidebar{display:none}.message-bubble{max-width:90%}}