@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--color-bg-base: #f8f9fa;--color-bg-surface: #ffffff;--color-bg-elevated: #f1f3f5;--color-border: rgba(0, 0, 0, .1);--color-border-hover: rgba(0, 0, 0, .2);--color-primary: #8a2be2;--color-primary-hover:#9d4edd;--color-primary-dim: rgba(138, 43, 226, .1);--color-text-main: #1a1a2e;--color-text-muted: #6b6b80;--color-danger: #ef4444;--color-success: #22c55e;--color-warning: #f59e0b;--radius: 12px;--radius-sm: 8px}body.dark-mode{--color-bg-base: #0a0a0c;--color-bg-surface: rgba(20, 20, 25, .6);--color-bg-elevated: rgba(30, 30, 38, .8);--color-border: rgba(255, 255, 255, .08);--color-border-hover: rgba(255, 255, 255, .16);--color-primary-dim: rgba(138, 43, 226, .15);--color-text-main: #f0f0f5;--color-text-muted: #9494a0}body.dark-mode .login-card,body.dark-mode .section-card,body.dark-mode .chat-sidebar,body.dark-mode .admin-topbar,body.dark-mode .chat-topbar,body.dark-mode .chat-input-area{box-shadow:0 2px 12px #0000004d}body.dark-mode .form-input,body.dark-mode .form-select,body.dark-mode .form-textarea,body.dark-mode .chat-textarea{background:#ffffff0a}body.dark-mode .msg-row.user .msg-bubble{background:var(--color-primary);color:#fff}body.dark-mode .msg-row.assistant .msg-bubble{background:#1e1e26cc;color:var(--color-text-main)}body.dark-mode .source-card{background:#00000040}body.dark-mode .conv-item:hover{background:#ffffff0a}body.dark-mode .data-table tr:hover td{background:#ffffff05}body.dark-mode ::-webkit-scrollbar-thumb{background:#ffffff1f}body.dark-mode .form-select option{background:#1a1a22;color:#f0f0f5}body.dark-mode .audit-detail{background:#0003}body.dark-mode .audit-msg.assistant{background:#ffffff0d}body.dark-mode .data-table td{border-bottom:1px solid rgba(255,255,255,.04)}body.dark-mode .msg-table tr:nth-child(2n) td{background:#ffffff08}body.dark-mode .btn-secondary{background:#ffffff0f;border-color:#ffffff14}body.dark-mode .btn-secondary:hover:not(:disabled){background:#ffffff1a}body.dark-mode .btn-ghost:hover:not(:disabled){background:#ffffff0d}body.dark-mode .status-msg{background:#ffffff0a}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,sans-serif;background:var(--color-bg-base);color:var(--color-text-main);min-height:100vh;font-size:14px;line-height:1.5}.hidden{display:none!important}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:none;cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;transition:all .15s;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:#0000000a;color:var(--color-text-main);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:#00000014}.btn-ghost{background:transparent;color:var(--color-text-muted);padding:6px 10px}.btn-ghost:hover:not(:disabled){color:var(--color-text-main);background:#0000000d}.theme-slider{display:inline-flex;align-items:center;gap:5px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:20px;padding:4px 8px;cursor:pointer;-webkit-user-select:none;user-select:none;flex-shrink:0;height:30px;box-sizing:border-box}.theme-slider:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.theme-icon{color:var(--color-text-muted);flex-shrink:0}.theme-slider-track{width:28px;height:16px;background:var(--color-border);border-radius:8px;position:relative;flex-shrink:0}.theme-slider-knob{position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:var(--color-primary);transition:left .2s ease}body.dark-mode .theme-slider-knob{left:14px}.btn-danger{background:#ef444414;color:var(--color-danger);border:1px solid rgba(239,68,68,.2)}.btn-danger:hover:not(:disabled){background:#ef444426}.btn-sm{padding:5px 10px;font-size:12px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:12px;font-weight:500;color:var(--color-text-muted)}.form-input,.form-select,.form-textarea{background:#0000000a;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-main);font-family:inherit;font-size:13px;padding:9px 12px;transition:border-color .15s;width:100%}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--color-primary)}.form-input::placeholder,.form-textarea::placeholder{color:var(--color-text-muted)}.form-select option{background:#fff;color:#1a1a2e}.status-msg{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;background:#0000000a;border:1px solid var(--color-border);color:var(--color-text-muted)}.status-msg.error{background:#ef444414;border-color:#ef444433;color:#dc2626}.status-msg.success{background:#22c55e14;border-color:#22c55e33;color:#16a34a}.status-msg.warning{background:#f59e0b14;border-color:#f59e0b33;color:#d97706}.spinner{width:14px;height:14px;border:2px solid rgba(0,0,0,.1);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:99px;font-size:11px;font-weight:500}.badge-pending{background:#6b6b801f;color:var(--color-text-muted)}.badge-indexing{background:#f59e0b1f;color:#d97706}.badge-ready{background:#22c55e1f;color:#16a34a}.badge-error{background:#ef44441f;color:var(--color-danger)}.badge-warning{background:#f59e0b26;color:#b45309}#view-login{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.login-card{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:40px;width:100%;max-width:400px;box-shadow:0 4px 24px #00000014}.login-logo{text-align:center;margin-bottom:32px}.login-logo h1{font-size:20px;font-weight:700;color:var(--color-text-main)}.login-logo p{font-size:12px;color:var(--color-text-muted);margin-top:4px}.login-logo .logo-icon{width:48px;height:48px;background:var(--color-primary-dim);border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px}.login-form{display:flex;flex-direction:column;gap:16px}.login-error{margin-top:4px}#view-set-password{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}#view-admin{display:flex;flex-direction:column;min-height:100vh}.admin-topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--color-border);background:var(--color-bg-surface);position:sticky;top:0;z-index:10;box-shadow:0 1px 4px #0000000f}.admin-topbar-title{font-weight:600;font-size:15px}.admin-topbar-right{display:flex;align-items:center;gap:12px}.admin-nav-chat{font-size:12px}.admin-body{display:flex;flex-direction:column;flex:1;padding:24px;gap:20px;max-width:1100px;margin:0 auto;width:100%}.tab-bar{display:flex;gap:4px;border-bottom:1px solid var(--color-border);padding-bottom:0;overflow-x:auto}.tab-btn{padding:9px 18px;border:none;background:transparent;color:var(--color-text-muted);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .15s,border-color .15s;white-space:nowrap}.tab-btn:hover{color:var(--color-text-main)}.tab-btn.active{color:var(--color-text-main);border-bottom-color:var(--color-primary)}.tab-content{display:none;flex-direction:column;gap:20px}.tab-content.active{display:flex}.section-card{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:16px;box-shadow:0 1px 4px #0000000a}.section-card h3{font-size:14px;font-weight:600}.form-row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}.form-row .form-group{flex:1;min-width:160px}.data-table{width:100%;border-collapse:collapse}.data-table th{text-align:left;font-size:11px;font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;padding:8px 12px;border-bottom:1px solid var(--color-border)}.data-table td{padding:10px 12px;border-bottom:1px solid rgba(0,0,0,.05);font-size:13px;vertical-align:middle}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background:#00000005}.table-actions{display:flex;gap:6px;justify-content:flex-end}.upload-queue{width:100%;border-collapse:collapse;margin-top:12px;font-size:13px}.upload-queue th{text-align:left;padding:6px 8px;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--color-text-muted);border-bottom:1px solid var(--color-border)}.upload-queue td{padding:6px 8px;border-bottom:1px solid var(--color-border);vertical-align:middle}.upload-queue tr:last-child td{border-bottom:none}.queue-filename{color:var(--color-text-muted);font-size:12px;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.queue-title-input{padding:4px 8px;font-size:12px}.queue-status{white-space:nowrap}.docs-batch-toolbar{display:flex;align-items:center;gap:8px;padding:8px 0 10px;flex-wrap:wrap}.pagination-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 4px;margin-top:4px;flex-wrap:wrap;gap:8px}.pagination-btns{display:flex;align-items:center;gap:8px}.pagination-info{font-size:12px;color:var(--color-text-muted)}.sortable-th{cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap}.sortable-th:hover{color:var(--color-text-main)}.msg-table{width:100%;border-collapse:collapse;margin:8px 0;font-size:13px}.msg-table th{background:#8a2be214;color:var(--color-text-main);font-weight:600;text-align:left;padding:6px 10px;border:1px solid var(--color-border)}.msg-table td{padding:5px 10px;border:1px solid var(--color-border);color:var(--color-text-main);vertical-align:top}.msg-table tr:nth-child(2n) td{background:#00000005}.audit-row{cursor:pointer}.audit-row:hover td{background:#00000005}.audit-detail{background:#f1f3f5}.audit-thread{padding:12px 16px;display:flex;flex-direction:column;gap:8px;max-height:320px;overflow-y:auto}.audit-msg{padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;max-width:80%}.audit-msg.user{background:var(--color-primary-dim);align-self:flex-end}.audit-msg.assistant{background:#e9ecef;align-self:flex-start;color:var(--color-text-main)}.audit-msg-meta{font-size:11px;color:var(--color-text-muted);margin-bottom:4px}.doc-upload-area{border:2px dashed var(--color-border);border-radius:var(--radius-sm);padding:20px;text-align:center;cursor:pointer;transition:border-color .15s}.doc-upload-area:hover{border-color:var(--color-primary)}.doc-upload-area p{font-size:13px;color:var(--color-text-muted)}#view-chat{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;overflow:hidden}.chat-sidebar{width:260px;flex-shrink:0;background:var(--color-bg-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;transition:transform .25s ease;box-shadow:1px 0 4px #0000000a}.sidebar-header{padding:16px;border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:10px}.sidebar-logo{font-size:13px;font-weight:600;color:var(--color-text-main)}.sidebar-logo span{color:var(--color-primary)}.btn-new-chat{width:100%;justify-content:center}.conversations-list{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:2px}.conv-item{padding:9px 12px;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;color:var(--color-text-muted);transition:background .12s,color .12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border:1px solid transparent}.conv-item:hover{background:#0000000a;color:var(--color-text-main)}.conv-item.active{background:var(--color-primary-dim);color:var(--color-text-main);border-color:#8a2be233}.conv-item-date{font-size:11px;color:var(--color-text-muted);display:block;margin-top:2px}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:6px}.sidebar-user-name{font-size:12px;color:var(--color-text-muted)}.chat-main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.chat-topbar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--color-border);background:var(--color-bg-surface);flex-shrink:0;box-shadow:0 1px 4px #0000000a}.chat-topbar-left{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.sidebar-toggle{display:none;background:none;border:none;color:var(--color-text-muted);cursor:pointer;font-size:18px;padding:4px;line-height:1}.project-select-wrap{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.project-label{font-size:12px;color:var(--color-text-muted);white-space:nowrap}.project-select-wrap .form-select,.project-select-wrap .building-select{max-width:280px;padding:6px 10px}.building-select{background:#0000000a;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-main);font-family:inherit;font-size:13px;padding:6px 10px;transition:border-color .15s;max-width:280px}.building-select:focus{outline:none;border-color:var(--color-primary)}.chat-messages{flex:1;overflow-y:auto;padding:24px 16px;display:flex;flex-direction:column;gap:16px;background:var(--color-bg-base)}.chat-empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--color-text-muted);text-align:center;padding:40px}.chat-empty-state .icon{font-size:36px;opacity:.4}.chat-empty-state h3{font-size:16px;font-weight:600;color:var(--color-text-main)}.chat-empty-state p{font-size:13px;max-width:360px}.msg-row{display:flex;flex-direction:column;gap:4px}.msg-row.user{align-items:flex-end}.msg-row.assistant{align-items:flex-start;max-width:82%}.msg-bubble{padding:12px 16px;border-radius:14px;font-size:14px;line-height:1.6;max-width:100%;word-break:break-word;white-space:pre-wrap}.msg-row.user .msg-bubble{background:var(--color-primary);color:#fff;border-radius:14px 14px 4px;max-width:70%}.msg-row.assistant .msg-bubble{background:#fff;border:1px solid var(--color-border);border-radius:4px 14px 14px;color:var(--color-text-main);box-shadow:0 1px 4px #0000000f}.msg-bubble.no-answer{background:#f59e0b0f;border-color:#f59e0b33;color:#92400e}.page-images{margin-top:12px;display:flex;flex-direction:column;gap:12px}.page-img-item{margin:0;border:1px solid var(--color-border);border-radius:8px;overflow:hidden}.page-img-item img{width:100%;height:auto;display:block}.page-img-item figcaption{font-size:11px;color:var(--color-text-muted);padding:4px 8px;background:var(--color-bg-surface-2)}.typing-indicator{display:flex;align-items:center;gap:6px;padding:12px 16px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:4px 14px 14px;width:fit-content;box-shadow:0 1px 4px #0000000f}.typing-dot{width:7px;height:7px;background:var(--color-text-muted);border-radius:50%;animation:typing-bounce 1.2s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,80%,to{transform:translateY(0);opacity:.4}40%{transform:translateY(-5px);opacity:1}}.msg-sources{margin-top:6px}.sources-toggle{background:none;border:1px solid var(--color-border);border-radius:99px;color:var(--color-text-muted);font-size:11px;font-family:inherit;padding:3px 10px;cursor:pointer;transition:all .15s}.sources-toggle:hover{border-color:var(--color-border-hover);color:var(--color-text-main)}.sources-list{display:flex;flex-direction:column;gap:6px;margin-top:6px}.source-card{background:#f1f3f5;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:10px 12px}.source-card-title{font-size:12px;font-weight:600;color:var(--color-text-main)}.source-card-meta{font-size:11px;color:var(--color-primary);margin:2px 0 6px}.source-card-excerpt{font-size:12px;color:var(--color-text-muted);line-height:1.5}.chat-input-area{padding:12px 16px;border-top:1px solid var(--color-border);background:var(--color-bg-surface);display:flex;gap:10px;align-items:flex-end;flex-shrink:0;box-shadow:0 -1px 4px #0000000a}.chat-textarea{flex:1;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:10px;color:var(--color-text-main);font-family:inherit;font-size:14px;padding:10px 14px;resize:none;min-height:44px;max-height:160px;overflow-y:auto;line-height:1.5;transition:border-color .15s}.chat-textarea:focus{outline:none;border-color:var(--color-primary);background:var(--color-bg-surface)}.chat-textarea::placeholder{color:var(--color-text-muted)}.chat-textarea:disabled{opacity:.5}.send-btn{width:44px;height:44px;border-radius:10px;border:none;background:var(--color-primary);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s;font-size:18px}.send-btn:hover:not(:disabled){background:var(--color-primary-hover)}.send-btn:disabled{opacity:.4;cursor:not-allowed}@media (max-width: 700px){.chat-sidebar{position:absolute;top:0;left:0;height:100%;z-index:20;transform:translate(-100%)}.chat-sidebar.open{transform:translate(0);box-shadow:4px 0 24px #00000026}.sidebar-toggle{display:block}.msg-row.user .msg-bubble{max-width:90%}.msg-row.assistant{max-width:95%}.admin-body{padding:16px}.form-row{flex-direction:column}.data-table th:nth-child(3),.data-table td:nth-child(3){display:none}.login-card{padding:28px 20px}}@media (max-width: 480px){.chat-topbar{flex-wrap:wrap;gap:6px;padding:8px 12px}.chat-topbar-left{flex:1 1 100%;gap:6px}.project-select-wrap{flex:1}.project-select-wrap .building-select,.project-select-wrap .form-select{max-width:none;width:100%}.project-label{display:none}#export-chat-btn,#theme-toggle-chat{font-size:12px;padding:4px 8px}.chat-messages{padding:12px 8px}.chat-textarea{flex:1 1 100%;min-width:0;order:3}#img-btn{order:1}.send-btn{order:2}#img-preview{flex:1 1 100%;order:4}}#print-view{display:none}@media print{body>*{display:none!important}#print-view{display:block!important;font-family:Georgia,serif;color:#000;padding:24px;max-width:800px;margin:0 auto}#print-view .print-header{border-bottom:2px solid #000;padding-bottom:12px;margin-bottom:20px}#print-view .print-header h2{margin:0 0 4px;font-size:18px}#print-view .print-header p{margin:2px 0;font-size:13px;color:#444}#print-view .print-msg{margin-bottom:16px}#print-view .print-msg-role{font-weight:700;font-size:12px;text-transform:uppercase;color:#555;margin-bottom:2px}#print-view .print-msg-content{font-size:14px;line-height:1.5;white-space:pre-wrap}#print-view .print-msg-sources{font-size:12px;color:#555;margin-top:4px}#print-view .print-divider{border:none;border-top:1px solid #ccc;margin:12px 0}}