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ease;position:relative}.conversation-item:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--accent);border-radius:0 2px 2px 0;box-shadow:0 0 8px var(--accent-glow);transition:height .2s ease}.conversation-item:hover{background:#ffffff0a;color:var(--text-secondary);padding-left:16px}.conversation-item:hover:before{height:60%}.conversation-item.active{background:var(--accent-subtle);color:var(--text-accent);font-weight:500}.conversation-item.active:before{height:70%}.conversation-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-actions{display:flex;gap:2px;opacity:0;transition:opacity .2s ease}.conversation-item:hover .conv-actions{opacity:1}.action-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px 6px;border-radius:6px;font-size:12px;transition:all .15s ease}.action-btn:hover{background:#ffffff14;color:var(--text-secondary)}.action-btn.delete-btn:hover{background:#fc6b6b26;color:var(--danger)}.edit-conv-input{flex:1;background:var(--bg-main);color:var(--text-primary);border:1px solid var(--accent);border-radius:6px;padding:3px 8px;font-size:13px;font-family:inherit;outline:none;min-width:0;box-shadow:0 0 0 3px #4c85ff26}.sidebar{width:280px;background:linear-gradient(175deg,#0d1527,#090d1a);display:flex;flex-direction:column;padding:20px 12px;border-right:1px solid var(--border-color);position:relative;overflow:hidden;flex-shrink:0}.sidebar:after{content:"";position:absolute;top:0;left:15%;right:15%;height:1px;background:linear-gradient(90deg,transparent,var(--accent-border),transparent);pointer-events:none}.brand-header{display:flex;align-items:center;gap:12px;padding:4px 8px 20px;margin-bottom:8px}.brand-header img{width:38px;height:38px;border-radius:50%;background:#fff;padding:2px;animation:glowPulse 4s ease-in-out infinite}.brand-header h1{margin:0;font-size:17px;font-weight:700;letter-spacing:-.3px;background:linear-gradient(135deg,var(--text-primary) 40%,var(--accent-hover));-webkit-background-clip:text;background-clip:text;color:transparent}.new-chat-button{background:var(--accent-subtle);color:var(--text-accent);border:1px solid var(--accent-border);border-radius:var(--radius-full);padding:11px 16px;font-size:13.5px;font-weight:500;font-family:inherit;cursor:pointer;display:flex;align-items:center;gap:8px;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;margin-bottom:16px}.new-chat-button:hover{background:#4c85ff24;border-color:#4c85ff66;box-shadow:0 0 18px #4c85ff1f}.new-chat-button.active{background:#4c85ff2e;border-color:#4c85ff80;box-shadow:0 0 22px #4c85ff2e;color:#93b8ff}.conversation-list{list-style:none;padding:0;margin:0;overflow-y:auto;flex:1}.sidebar-footer{display:flex;flex-direction:column;gap:6px;padding-top:16px;border-top:1px solid 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.logout-button:hover{background:#ffffff0a;color:var(--text-secondary);border-color:var(--border-bright)}.sidebar-footer .usage-indicator{display:flex;flex-direction:column;gap:5px;padding:0 4px;margin-bottom:4px}.sidebar-footer .usage-indicator .usage-bar{height:4px;border-radius:2px;background:#ffffff0d;overflow:hidden}.sidebar-footer .usage-indicator .usage-fill{height:100%;border-radius:2px;transition:width .5s ease}.sidebar-footer .usage-indicator .usage-fill.usage-low{background:linear-gradient(90deg,#34d399,#6ee7b7)}.sidebar-footer .usage-indicator .usage-fill.usage-medium{background:linear-gradient(90deg,#fbbf24,#fde68a)}.sidebar-footer .usage-indicator .usage-fill.usage-high{background:linear-gradient(90deg,#fc6b6b,#fca5a5)}.sidebar-footer .usage-indicator .usage-text{font-size:11px;color:var(--text-muted)}.message-row{display:flex;gap:14px;align-items:flex-start;animation:messageReveal .35s cubic-bezier(.2,0,0,1)}.message-row.user{flex-direction:row-reverse}.avatar{width:34px;height:34px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;letter-spacing:.5px}.message-row.bot .avatar{background:#fff;padding:4px;box-shadow:0 0 16px #4c85ff40}.message-row.user .avatar{background:linear-gradient(135deg,var(--accent-dim),var(--accent));color:#fff;box-shadow:0 2px 12px var(--accent-glow)}.avatar img{width:100%;height:100%;object-fit:contain}.message-content{max-width:78%;min-width:0}.message-bubble{font-size:15px;line-height:1.65}.message-row.user .message-bubble{background:linear-gradient(150deg,#1a3260,#0f1f47);border:1px solid rgba(76,133,255,.18);padding:12px 18px;border-radius:20px 20px 4px;box-shadow:0 4px 24px #0000004d}.message-row.bot .message-bubble{padding:6px 0;overflow-wrap:break-word}.message-bubble p{margin:0 0 .75em}.message-bubble p:last-child{margin-bottom:0}.message-bubble ul,.message-bubble 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var(--border-bright);box-shadow:var(--shadow-md);transition:border-color .2s ease,box-shadow .2s ease}.chat-input:focus-within{border-color:var(--accent-border);box-shadow:var(--shadow-md),0 0 0 3px #4c85ff1a,0 0 30px #4c85ff14}.chat-input input{flex:1;background:none;border:none;color:var(--text-primary);font-size:15px;font-family:inherit;outline:none;line-height:1.5}.chat-input input::placeholder{color:var(--text-muted)}.chat-input button{background:linear-gradient(135deg,var(--accent),var(--accent-dim));color:#fff;border:none;border-radius:50%;width:42px;height:42px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;flex-shrink:0;box-shadow:0 2px 14px #4c85ff66;font-size:15px}.chat-input button:not(:disabled):hover{transform:scale(1.06);box-shadow:0 4px 22px #4c85ff99}.chat-input button:not(:disabled):active{transform:scale(.96)}.chat-input button:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.disclaimer{font-size:11.5px;color:var(--text-muted);margin-top:10px;margin-bottom:0;letter-spacing:.1px}.chat-area{flex:1;display:flex;flex-direction:column;position:relative;background:var(--bg-main)}.chat-area:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,rgba(255,255,255,.025) 1px,transparent 1px);background-size:28px 28px;pointer-events:none;z-index:0}.chat-wrapper{flex:1;overflow-y:auto;padding:28px 24px;scroll-behavior:smooth;position:relative;z-index:1}.chat-window{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:28px;padding-bottom:140px}.admin-page{height:100vh;overflow-y:auto;background:var(--bg-main);background-image:radial-gradient(circle,rgba(255,255,255,.02) 1px,transparent 1px);background-size:28px 28px;background-attachment:local;max-width:960px;margin:0 auto;padding:40px 24px 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Code,monospace}.usage-cell{min-width:160px}.usage-unlimited{font-size:13px;color:var(--text-muted);font-style:italic}.usage-inline{display:flex;align-items:center;gap:10px}.usage-inline .usage-bar-inline{flex:1;height:5px;border-radius:3px;background:#ffffff0f;overflow:hidden}.usage-inline .usage-fill-inline{height:100%;border-radius:3px;transition:width .5s ease}.usage-inline .usage-fill-inline.usage-low{background:linear-gradient(90deg,var(--success),#6ee7b7)}.usage-inline .usage-fill-inline.usage-medium{background:linear-gradient(90deg,var(--warning),#fde68a)}.usage-inline .usage-fill-inline.usage-high{background:linear-gradient(90deg,var(--danger),#fca5a5)}.usage-inline .usage-percent{font-size:12.5px;font-weight:600;min-width:36px;text-align:right;font-variant-numeric:tabular-nums}.rd-page{height:100vh;overflow-y:auto;background:var(--bg-main);background-image:radial-gradient(circle,rgba(255,255,255,.02) 1px,transparent 1px);background-size:28px 28px;background-attachment:local;max-width:960px;margin:0 auto;padding:40px 24px 80px}.rd-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.rd-header h1{font-size:26px;font-weight:700;letter-spacing:-.5px;margin:0;background:linear-gradient(135deg,var(--text-primary) 40%,var(--accent-hover));-webkit-background-clip:text;background-clip:text;color:transparent}.rd-header .rd-actions{display:flex;gap:8px}.btn-primary,.btn-secondary{padding:9px 18px;border-radius:var(--radius-md);font-size:13.5px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .2s ease}.btn-primary:disabled,.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dim));color:#fff;border:none;box-shadow:0 2px 12px #4c85ff59}.btn-primary:hover:not(:disabled){box-shadow:0 4px 20px #4c85ff8c;transform:translateY(-1px)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-bright)}.btn-secondary:hover:not(:disabled){background:var(--bg-input);border-color:#ffffff29}.upload-section{margin-bottom:24px}.upload-zone{padding:28px;background:var(--bg-sidebar);border:1px solid var(--border-bright);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;gap:16px;box-shadow:var(--shadow-sm)}.upload-zone input[type=file]{display:none}.upload-zone .upload-label{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;width:100%;padding:28px;border:2px dashed var(--border-bright);border-radius:var(--radius-md);cursor:pointer;font-size:14.5px;color:var(--text-secondary);transition:all .2s ease;text-align:center}.upload-zone .upload-label:hover{border-color:var(--accent-border);color:var(--text-primary);background:var(--accent-subtle)}.upload-zone .upload-error{width:100%;background:var(--danger-bg);border:1px solid rgba(252,107,107,.22);color:var(--danger);padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;text-align:center}.upload-zone .upload-buttons{display:flex;gap:10px}.pipeline-progress{padding:24px;background:var(--bg-sidebar);border:1px solid var(--border-bright);border-radius:var(--radius-lg);margin-bottom:24px;box-shadow:var(--shadow-sm)}.pipeline-progress h2{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);margin:0 0 20px}.steps-list{display:flex;flex-direction:column;gap:16px}.step-item{display:flex;align-items:center;gap:12px}.step-item .step-indicator{width:28px;height:28px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.step-item .dot{width:10px;height:10px;border-radius:50%;background:#ffffff1f}.step-item .spinner{width:20px;height:20px;border:2px solid rgba(76,133,255,.2);border-top-color:var(--accent);border-radius:50%;animation:spin .75s linear infinite;box-shadow:0 0 8px #4c85ff33}.step-item .check{color:var(--success);font-size:18px;font-weight:700;filter:drop-shadow(0 0 6px rgba(52,211,153,.5))}.step-item .cross{color:var(--danger);font-size:18px;font-weight:700}.step-item .step-content{display:flex;flex-direction:column;gap:2px}.step-item .step-label{font-size:14px;font-weight:500;color:var(--text-primary)}.step-item .step-detail{font-size:12px;color:var(--text-secondary)}.step-item.pending .step-label{color:var(--text-muted)}.step-item.running .step-label{color:var(--accent-hover)}.step-item.done .step-label{color:var(--success)}.step-item.error .step-label{color:var(--danger)}.pipeline-success{margin-top:20px;padding:12px 16px;background:var(--success-bg);border:1px solid rgba(52,211,153,.22);color:var(--success);border-radius:var(--radius-sm);text-align:center;font-size:13.5px;font-weight:500}.documents-section{padding:24px;background:var(--bg-sidebar);border:1px solid var(--border-bright);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.documents-scroll{max-height:440px;overflow-y:auto}.documents-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:16px}.documents-header h2{font-size:16px;font-weight:600;margin:0;white-space:nowrap}.search-input{flex:1;max-width:300px;padding:9px 14px;border:1px solid var(--border-bright);border-radius:var(--radius-full);background:var(--bg-input);color:var(--text-primary);font-size:13px;font-family:inherit;outline:none;transition:all .2s ease}.search-input::placeholder{color:var(--text-muted)}.search-input:focus{border-color:var(--accent-border);box-shadow:0 0 0 2px #4c85ff1f}.documents-table{width:100%;border-collapse:collapse;font-size:13px;table-layout:fixed}.documents-table th{text-align:left;padding:8px 12px;font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border-color);font-size:11px;text-transform:uppercase;letter-spacing:.8px;position:sticky;top:0;background:var(--bg-sidebar);z-index:1}.documents-table td{padding:10px 12px;border-bottom:1px solid var(--border-color);color:var(--text-secondary);vertical-align:middle;word-break:break-word}.documents-table th:nth-child(1),.documents-table td:nth-child(1){width:30%}.documents-table th:nth-child(2),.documents-table td:nth-child(2){width:35%}.documents-table th:nth-child(3),.documents-table td:nth-child(3){width:12%}.documents-table th:nth-child(4),.documents-table td:nth-child(4){width:23%}.documents-table tbody tr:last-child td{border-bottom:none}.documents-table tbody tr{transition:background .15s ease}.documents-table tbody tr:hover td{background:#ffffff05}.actions-cell{white-space:nowrap}.actions-cell .btn-icon+.btn-icon{margin-left:8px}.btn-icon{padding:5px 10px;border-radius:var(--radius-sm);font-size:12px;font-weight:500;font-family:inherit;cursor:pointer;border:1px solid var(--border-bright);background:none;color:var(--text-secondary);transition:all .15s ease}.btn-icon:hover{background:#ffffff0f;color:var(--text-primary)}.btn-icon:disabled{opacity:.5;cursor:not-allowed}.btn-danger{color:var(--danger);border-color:#fc6b6b40}.btn-danger:hover{background:var(--danger-bg);border-color:#fc6b6b80}.documents-empty{text-align:center;padding:36px 16px;color:var(--text-muted);font-size:14px}.page{display:flex;height:100vh;overflow:hidden}