:root{--bg:#f5f6f8;--surface:#fff;--border:#e3e6ea;--text:#1f2933;--text-muted:#6b7280;--primary:#1f4e79;--primary-hover:#163a5c;--danger:#b42318;--success-bg:#e8f5ee;--success-text:#1c7a45;--error-bg:#fdecea;--error-text:#b42318;--warning:#b7791f;--shadow:0 1px 3px #10182814, 0 1px 2px #1018280a;--radius:8px;--sans:system-ui, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;color:var(--text);font:15px/1.5 var(--sans);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0}h1{margin:0 0 4px;font-size:26px;font-weight:600}h2{margin:0 0 12px;font-size:17px;font-weight:600}h3{margin:20px 0 8px;font-size:15px;font-weight:600}p{margin:0}.muted{color:var(--text-muted)}.page{max-width:1100px;margin:0 auto;padding:28px 32px 48px}.page-subtitle{color:var(--text-muted);margin-bottom:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px;padding:20px}.layout{grid-template-columns:220px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;gap:20px;height:100vh;padding:24px 16px;display:flex;position:sticky;top:0}.sidebar-brand{color:var(--primary);padding:0 8px;font-size:20px;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:4px;display:flex}.sidebar-nav a{color:var(--text);border-radius:6px;padding:10px 12px;font-weight:500;text-decoration:none;display:block}.sidebar-nav a:hover{background:#eef2f6}.sidebar-nav a.active{background:var(--primary);color:#fff}.main-content{min-width:0}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;cursor:pointer;border-radius:6px;padding:8px 14px;font-weight:500}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:not(:disabled):hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-ghost{color:var(--text-muted);background:0 0;border-color:#0000}.btn-ghost:hover{color:var(--text);background:#eef2f6}.btn-logout{border-color:var(--border);color:var(--text-muted);background:0 0}.btn-logout:hover{background:var(--error-bg);color:var(--error-text);border-color:#f0c4bf}input[type=email],input[type=password],input[type=date],select,textarea{border:1px solid var(--border);width:100%;font:inherit;color:var(--text);background:#fff;border-radius:6px;padding:9px 11px}textarea{resize:vertical;min-height:52px}label{margin:12px 0 6px;font-size:14px;font-weight:500;display:block}.alert{border-radius:6px;margin:12px 0;padding:10px 12px;font-size:14px}.alert-error{background:var(--error-bg);color:var(--error-text);border:1px solid #f0c4bf}.alert-success{background:var(--success-bg);color:var(--success-text);border:1px solid #b8e0c8}.table{border-collapse:collapse;width:100%;font-size:14px}.table th,.table td{text-align:left;border-bottom:1px solid var(--border);vertical-align:top;padding:10px 12px}.table th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:12px;font-weight:600}.table tbody tr:hover{background:#fafbfc}.table-scroll{overflow-x:auto}.actions-col{white-space:nowrap;width:1%}.actions-col .btn{margin-right:6px}.status-badge{color:#4b5563;background:#eef0f2;border-radius:999px;align-items:center;gap:7px;padding:3px 10px;font-size:13px;font-weight:500;display:inline-flex}.status-dot{background:currentColor;border-radius:50%;flex-shrink:0;width:9px;height:9px}.status-queued{color:#6b7280;background:#eef0f2}.status-processing{color:var(--warning);background:#fef6e7}.status-processing .status-dot{animation:1s ease-in-out infinite pulse}.status-done{background:var(--success-bg);color:var(--success-text)}.status-error{background:var(--error-bg);color:var(--error-text)}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}.metrics-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;display:grid}.metric-card{border:1px solid var(--border);border-radius:var(--radius);background:#f8fafc;flex-direction:column;gap:6px;padding:16px;display:flex}.metric-label{color:var(--text-muted);font-size:13px}.metric-value{color:var(--primary);font-size:26px;font-weight:700}.filters-row{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}.filters-row input,.filters-row select{width:auto;min-width:150px}.detail-list{grid-template-columns:120px 1fr;gap:6px 12px;margin:0;font-size:14px;display:grid}.detail-list dt{color:var(--text-muted);font-weight:500}.detail-list dd{margin:0}.modal-overlay{z-index:100;background:#10182873;justify-content:center;align-items:flex-start;padding:48px 16px;display:flex;position:fixed;inset:0;overflow-y:auto}.modal{background:var(--surface);border-radius:var(--radius);width:100%;max-width:860px;box-shadow:0 20px 40px #10182833}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h2{margin:0}.modal-body{padding:20px}.upload-form{flex-direction:column;gap:12px;display:flex}.upload-form input[type=file]{width:auto}.progress{background:#eef0f2;border-radius:999px;height:22px;position:relative;overflow:hidden}.progress-bar{background:var(--primary);height:100%;transition:width .2s}.progress-label{color:var(--text);justify-content:center;align-items:center;font-size:12px;display:flex;position:absolute;inset:0}.login-page{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:10px;width:100%;max-width:380px;padding:32px}.login-brand{text-align:center;color:var(--primary);margin-bottom:4px}.login-subtitle{text-align:center;color:var(--text-muted);margin-bottom:20px}.chat-page{flex-direction:column;height:calc(100vh - 56px);max-height:100vh;padding-bottom:24px;display:flex}.doc-filter summary{cursor:pointer;font-weight:500}.doc-filter-options{flex-wrap:wrap;gap:10px;margin-top:12px;display:flex}.checkbox-label{border:1px solid var(--border);cursor:pointer;background:#f8fafc;border-radius:6px;align-items:center;gap:6px;margin:0;padding:6px 10px;font-size:13px;display:inline-flex}.chat-thread{flex:1;min-height:200px;overflow-y:auto}.chat-empty{text-align:center;padding:40px 0}.chat-message{margin-bottom:14px;display:flex}.chat-user{justify-content:flex-end}.chat-user .chat-bubble{background:var(--primary);color:#fff}.chat-assistant .chat-bubble{background:#f0f3f6}.chat-bubble{white-space:pre-wrap;word-break:break-word;border-radius:12px;max-width:78%;padding:10px 14px}.generating{color:var(--text-muted);font-style:italic}.chat-error{color:var(--error-text);margin-top:6px;font-size:13px}.chat-sources{border-top:1px solid #7f7f7f4d;margin-top:10px;padding-top:8px;font-size:13px}.chat-sources summary{cursor:pointer;font-weight:500}.chat-sources ul{margin:8px 0 0;padding:0;list-style:none}.chat-sources li{border-bottom:1px solid #7f7f7f33;padding:8px 0}.chat-input{align-items:flex-end;gap:10px;margin-top:14px;display:flex}.chat-input textarea{flex:1}.chat-actions{flex-direction:column;gap:8px;display:flex}@media (width<=760px){.layout{grid-template-columns:1fr}.sidebar{flex-flow:wrap;align-items:center;height:auto;position:static}.sidebar-nav{flex-direction:row;flex:1}.chat-page{height:auto}}