:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f1f3f6;--border: #e3e6ea;--text: #1f2733;--muted: #6b7280;--primary: #0f766e;--primary-600: #0d655e;--primary-50: #e6f3f1;--danger: #dc2626;--danger-50: #fdeaea;--warn: #b45309;--shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);--radius: 14px;--sidebar-w: 280px;--font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.muted{color:var(--muted)}.small{font-size:.85rem}.xsmall{font-size:.76rem}.center{text-align:center}.nowrap{white-space:nowrap}.mono{font-family:ui-monospace,Cascadia Code,Consolas,monospace}.w-full{width:100%}.mt-3{margin-top:.75rem}.mt-4{margin-top:1.25rem}.pad{padding:1.25rem}button{font-family:inherit;cursor:pointer}.btn{border:1px solid transparent;border-radius:10px;padding:.55rem .9rem;font-weight:600;font-size:.92rem;transition:background .15s,border-color .15s,opacity .15s}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-600)}.btn-light{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-light:hover:not(:disabled){background:var(--surface-2)}.btn-sm{padding:.35rem .7rem;font-size:.85rem}input[type=text],input[type=email],input[type=password],input[type=file],select,textarea{font-family:inherit;font-size:.95rem;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:.55rem .7rem;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-50)}.field{display:flex;flex-direction:column;gap:.35rem}.field>span{font-size:.82rem;font-weight:600;color:var(--muted)}kbd{background:var(--surface-2);border:1px solid var(--border);border-radius:5px;padding:0 .35rem;font-size:.78rem;font-family:inherit}.alert{border-radius:10px;padding:.7rem .9rem;font-size:.9rem;margin:.5rem 0}.alert.error{background:var(--danger-50);color:var(--danger);border:1px solid #f3c4c4}.err-text{color:var(--danger)}.spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;vertical-align:-3px;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}.full-center{height:100%;display:flex;align-items:center;justify-content:center}.toast-wrap{position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:.5rem;z-index:1000;align-items:center}.toast-msg{background:#1f2733;color:#fff;padding:.6rem 1rem;border-radius:10px;font-size:.88rem;box-shadow:var(--shadow);animation:rise .2s ease}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}.app-shell{display:flex;height:100%}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1rem .85rem}.brand{display:flex;align-items:center;gap:.65rem;padding:.25rem .4rem .9rem}.brand .logo{font-size:1.6rem}.brand b{display:block;font-size:1rem}.brand small{display:block;color:var(--muted);font-size:.76rem}.side-section{margin-bottom:1rem}.side-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700;padding:.4rem}.history-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.history-item{display:flex;align-items:center;gap:.5rem;width:100%;border:none;background:transparent;text-align:left;padding:.5rem .55rem;border-radius:9px;color:var(--text);font-size:.9rem}.history-item:hover{background:var(--surface-2)}.history-item.active{background:var(--primary-50);color:var(--primary-600);font-weight:600}.history-item .label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item .ico{flex-shrink:0}.foot{display:flex;align-items:center;justify-content:space-between;padding-top:.75rem;margin-top:.5rem;border-top:1px solid var(--border);font-size:.88rem}.link-btn{background:none;border:none;color:var(--muted);font-size:1rem}.backdrop{position:fixed;inset:0;background:#00000059;z-index:30}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{display:flex;align-items:center;gap:.75rem;padding:.7rem 1.1rem;border-bottom:1px solid var(--border);background:var(--surface)}.topbar .title{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hamburger{display:none;background:none;border:none;font-size:1.3rem}.lang-pick{display:flex;align-items:center;gap:.4rem}.lang-pick select{width:auto;padding:.35rem .5rem;font-size:.85rem}.chat-scroll{flex:1;overflow-y:auto}.chat-inner{max-width:820px;margin:0 auto;padding:1.5rem 1.1rem 2rem;display:flex;flex-direction:column;gap:1.1rem}.empty-state{text-align:center;padding:2.5rem 1rem}.empty-state .hero{font-size:3rem}.empty-state h2{margin:.5rem 0 .3rem}.suggest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.6rem;margin-top:.6rem}.suggest-grid.chips{grid-template-columns:repeat(3,1fr)}.suggest-card{text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:.8rem .9rem;font-size:.9rem;color:var(--text)}.suggest-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}.chip{display:inline-flex;align-items:center;gap:.3rem;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:.4rem .8rem;font-size:.86rem;color:var(--text);margin:.2rem .2rem 0 0}.chip:hover{border-color:var(--primary);color:var(--primary-600)}.msg-row{display:flex;gap:.7rem;align-items:flex-start}.msg-row.user{flex-direction:row-reverse}.avatar{flex-shrink:0;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.05rem}.avatar.bot{background:var(--primary-50)}.avatar.user{background:var(--surface-2)}.msg-col{min-width:0;max-width:88%}.msg-row.user .msg-col{display:flex;flex-direction:column;align-items:flex-end}.bubble{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:.75rem 1rem;line-height:1.55;word-wrap:break-word;overflow-wrap:anywhere}.msg-row.user .bubble{background:var(--primary);color:#fff;border-color:var(--primary)}.bubble.unanswered{background:#fff8ec;border-color:#f3dca8}.bubble p:first-child{margin-top:0}.bubble p:last-child{margin-bottom:0}.bubble pre{background:var(--surface-2);padding:.6rem;border-radius:8px;overflow-x:auto}.bubble code{background:var(--surface-2);padding:.1rem .3rem;border-radius:5px}.bubble table{border-collapse:collapse;width:100%}.bubble th,.bubble td{border:1px solid var(--border);padding:.35rem .5rem;text-align:left}.citations{margin-top:.6rem;display:flex;flex-direction:column;gap:.4rem}.citations .lbl,.followups .lbl{font-size:.78rem;font-weight:700;color:var(--muted)}.citation{display:block;border:1px solid var(--border);border-radius:10px;padding:.5rem .7rem;background:var(--surface);color:var(--text)}.citation:hover{border-color:var(--primary);text-decoration:none}.citation .src{display:block;font-weight:600;font-size:.86rem;color:var(--primary-600)}.citation .snip{display:block;color:var(--muted);font-size:.82rem;margin-top:.2rem}.followups{margin-top:.6rem}.msg-meta{display:flex;align-items:center;gap:.4rem;margin-top:.45rem}.icon-btn{background:none;border:1px solid transparent;border-radius:8px;padding:.25rem .5rem;font-size:.82rem;color:var(--muted)}.icon-btn:hover:not(:disabled){background:var(--surface-2)}.icon-btn:disabled{opacity:.4;cursor:default}.icon-btn.on-up{color:var(--primary)}.icon-btn.on-down{color:var(--danger)}.msg-time{font-size:.76rem;color:var(--muted)}.typing{display:inline-flex;gap:4px}.typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite both}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.composer{border-top:1px solid var(--border);background:var(--surface);padding:.85rem 1.1rem}.composer-inner{max-width:820px;margin:0 auto}.composer-box{display:flex;align-items:flex-end;gap:.5rem;border:1px solid var(--border);border-radius:16px;padding:.4rem .4rem .4rem .9rem;background:var(--surface)}.composer-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-50)}.composer-box textarea{border:none;resize:none;padding:.45rem 0;max-height:160px;background:transparent}.composer-box textarea:focus{box-shadow:none}.send-btn{flex-shrink:0;width:38px;height:38px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:1rem}.send-btn:disabled{opacity:.5}.composer-hint{text-align:center;color:var(--muted);font-size:.76rem;margin-top:.45rem}.auth-screen{min-height:100%;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(160deg,var(--primary-50),var(--bg))}.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.8rem;display:flex;flex-direction:column;gap:.9rem}.auth-brand{text-align:center;margin-bottom:.3rem}.auth-brand .logo{font-size:2.2rem}.auth-brand h1{margin:.4rem 0 .2rem;font-size:1.3rem}.auth-brand p{margin:0}.back-link{text-align:center;font-size:.88rem}.admin-shell{display:flex;height:100%}.admin-side{width:var(--sidebar-w);flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1rem .85rem}.admin-nav{display:flex;flex-direction:column;gap:2px;margin-top:.5rem;flex:1}.admin-nav a{padding:.6rem .7rem;border-radius:9px;color:var(--text);font-weight:500;font-size:.93rem}.admin-nav a:hover{background:var(--surface-2);text-decoration:none}.admin-nav a.active{background:var(--primary-50);color:var(--primary-600);font-weight:700}.admin-side-foot{border-top:1px solid var(--border);padding-top:.8rem;display:flex;flex-direction:column;gap:.7rem}.open-chat{font-size:.9rem}.who{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.admin-main{flex:1;overflow-y:auto}.page{max-width:1100px;margin:0 auto;padding:1.6rem 1.6rem 3rem}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1.2rem}.page-head h1{margin:0 0 .2rem;font-size:1.5rem}.page-head p{margin:0}.seg{display:inline-flex;border:1px solid var(--border);border-radius:10px;overflow:hidden}.seg button{border:none;background:var(--surface);padding:.45rem .85rem;font-size:.85rem;color:var(--muted)}.seg button.active{background:var(--primary);color:#fff}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.9rem;margin-bottom:1.2rem}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.1rem;box-shadow:var(--shadow)}.stat-value{font-size:1.5rem;font-weight:700}.stat-label{color:var(--muted);font-size:.84rem;margin-top:.2rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.2rem;box-shadow:var(--shadow);margin-bottom:1.2rem}.card.no-pad{padding:0;overflow:hidden}.card h2{margin:0 0 .9rem;font-size:1.1rem}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}.bars{display:flex;align-items:flex-end;gap:4px;height:180px;padding-top:.5rem}.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;min-width:0}.bar{width:70%;background:var(--primary);border-radius:4px 4px 0 0;min-height:2px;transition:height .3s}.bar-x{font-size:.62rem;color:var(--muted);margin-top:4px;transform:rotate(-45deg);white-space:nowrap}.ranked{list-style:none;margin:0;padding:0;counter-reset:rank}.ranked li{display:flex;align-items:center;gap:.6rem;padding:.5rem 0;border-bottom:1px solid var(--border)}.ranked li:last-child{border-bottom:none}.ranked li:before{counter-increment:rank;content:counter(rank);flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--surface-2);color:var(--muted);font-size:.75rem;font-weight:700;display:flex;align-items:center;justify-content:center}.ranked .q{flex:1;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ranked .count{font-weight:700;color:var(--primary-600)}.upload-form .upload-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr auto;gap:.8rem;align-items:end}.upload-form .btn{height:fit-content}.table-wrap{overflow-x:auto}.table{width:100%;border-collapse:collapse;font-size:.88rem}.table th,.table td{text-align:left;padding:.65rem .8rem;border-bottom:1px solid var(--border);vertical-align:top}.table th{background:var(--surface-2);color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.04em;position:sticky;top:0}.table tr:last-child td{border-bottom:none}.doc-title{font-weight:600}.badge{display:inline-block;background:var(--surface-2);color:var(--muted);border-radius:999px;padding:.15rem .55rem;font-size:.74rem;font-weight:600}.badge.status-indexed{background:#e6f6ec;color:#157347}.badge.status-processing,.badge.status-pending{background:#fff3da;color:var(--warn)}.badge.status-failed{background:var(--danger-50);color:var(--danger)}.badge.status-disabled{background:var(--surface-2);color:var(--muted)}.row-actions{display:flex;flex-wrap:wrap;gap:.3rem}.mini-btn{background:var(--surface);border:1px solid var(--border);border-radius:7px;padding:.25rem .5rem;font-size:.78rem;color:var(--text)}.mini-btn:hover{background:var(--surface-2)}.mini-btn.danger{color:var(--danger);border-color:#f3c4c4}.mini-btn.danger:hover{background:var(--danger-50)}@media(max-width:860px){.sidebar,.admin-side{position:fixed;inset:0 auto 0 0;z-index:40;transform:translate(-100%);transition:transform .25s ease;box-shadow:var(--shadow)}.sidebar.open{transform:translate(0)}.hamburger{display:block}.two-col,.upload-form .upload-grid{grid-template-columns:1fr}.msg-col{max-width:100%}.suggest-grid,.suggest-grid.chips{grid-template-columns:1fr}}