:root{--bg: #0a0c0d;--sidebar: #0f1113;--panel: #141719;--card: #16191c;--card-hover: #1c2023;--border: #262b2f;--border-soft: #1e2225;--text: #e7eaec;--muted: #8b939b;--faint: #5f676e;--accent: #17b8a6;--accent-ink: #04110f;--amber: #e6a23c;--danger: #ef5b5b;--radius: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit}.auth-screen{min-height:100%;display:grid;place-items:center;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:32px;display:flex;flex-direction:column;gap:8px}.auth-card h1{margin:0;font-size:26px;color:var(--accent)}.auth-sub{margin:0 0 16px;color:var(--muted);font-size:14px}.auth-card label{font-size:13px;color:var(--muted);margin-top:8px}.auth-card input{background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px 12px;font-size:14px;outline:none}.auth-card input:focus{border-color:var(--accent)}.auth-card button{margin-top:16px;background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;padding:12px;font-weight:600;font-size:14px}.auth-card button:disabled{opacity:.6;cursor:not-allowed}.auth-switch{margin:14px 0 0;font-size:13px;color:var(--muted);text-align:center}.auth-switch a{color:var(--accent);text-decoration:none}.auth-error,.chat-error{background:#ef5b5b1f;border:1px solid rgba(239,91,91,.4);color:#ffb4b4;padding:10px 12px;border-radius:10px;font-size:13px}.app{display:grid;grid-template-columns:288px 1fr;height:100%}.sidebar{background:var(--sidebar);border-right:1px solid var(--border-soft);display:flex;flex-direction:column;min-height:0;padding:14px 12px}.sidebar-new{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:12px;border-radius:var(--radius);background:var(--card);border:1px solid var(--border);color:var(--text);font-weight:600;font-size:14px;transition:background .15s}.sidebar-new:hover{background:var(--card-hover)}.sidebar-search{margin-top:12px;display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--border-soft);border-radius:10px;padding:9px 11px;color:var(--faint)}.sidebar-search input{border:none;background:transparent;color:var(--text);outline:none;width:100%;font-size:13px}.sidebar-scroll{overflow-y:auto;margin-top:16px;flex:1;min-height:0}.sidebar-scroll::-webkit-scrollbar{width:8px}.sidebar-scroll::-webkit-scrollbar-thumb{background:#23282c;border-radius:8px}.sb-section-head{display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:18px 4px 8px}.sb-section-head:first-child{margin-top:0}.sb-add{background:transparent;border:none;color:var(--muted);font-size:16px;line-height:1;padding:2px 6px;border-radius:6px}.sb-add:hover{background:var(--card-hover);color:var(--text)}.sb-empty{color:var(--faint);font-size:13px;padding:2px 6px}.brain-row{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border-radius:10px;border:none;background:transparent;color:var(--text);font-size:14px;text-align:left;transition:background .12s}.brain-row:hover{background:var(--card)}.brain-row .emoji{font-size:16px;width:20px;text-align:center}.brain-row .count{margin-left:auto;font-size:11px;color:var(--faint)}.convo-row{display:flex;align-items:center;gap:9px;width:100%;padding:9px 10px;border-radius:10px;border:none;background:transparent;color:var(--muted);font-size:13.5px;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background .12s}.convo-row:hover,.convo-row--active{background:var(--card);color:var(--text)}.convo-row .dot{color:var(--faint)}.time-label{font-size:11px;color:var(--faint);margin:10px 6px 4px;letter-spacing:.04em}.sidebar-foot{border-top:1px solid var(--border-soft);padding-top:12px;margin-top:8px;display:flex;align-items:center;justify-content:space-between}.sidebar-foot .who{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-ghost{background:transparent;border:none;color:var(--faint);font-size:12px}.btn-ghost:hover{color:var(--text)}.main{display:flex;flex-direction:column;min-width:0;height:100%}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border-soft)}.topbar .who{display:flex;align-items:center;gap:10px}.topbar .who .avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#0e7c70);display:grid;place-items:center;color:var(--accent-ink);font-weight:700;font-size:14px}.topbar .who .name{font-size:14px;font-weight:600}.topbar .who .mail{font-size:12px;color:var(--muted)}.model-selector{background:var(--card);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:9px 12px;font-size:13px;outline:none;min-width:190px}.model-selector--empty{color:var(--muted);font-size:12px;max-width:320px}.messages{flex:1;overflow-y:auto;padding:24px 0;min-height:0}.messages::-webkit-scrollbar{width:10px}.messages::-webkit-scrollbar-thumb{background:#23282c;border-radius:8px}.msg-row{display:flex;padding:6px 24px}.msg-row--user{justify-content:flex-end}.msg-bubble{max-width:760px;width:fit-content}.msg-row--user .msg-bubble{background:var(--accent);color:var(--accent-ink);padding:12px 16px;border-radius:16px 16px 4px;font-size:14.5px}.msg-row--assistant .msg-bubble{max-width:820px}.msg-model-tag{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;font-weight:600}.msg-content{white-space:pre-wrap;line-height:1.65;font-size:14.5px}.msg-sources{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.msg-sources .lbl{font-size:11px;color:var(--faint)}.src-chip{font-size:11px;color:var(--muted);background:var(--card);border:1px solid var(--border-soft);border-radius:999px;padding:3px 9px}.welcome{max-width:940px;margin:0 auto;padding:40px 24px}.welcome h1{text-align:center;font-size:30px;margin:30px 0 10px;font-weight:700}.welcome .sub{text-align:center;color:var(--muted);font-size:15px;margin-bottom:34px}.suggest-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 720px){.suggest-grid,.app{grid-template-columns:1fr}.sidebar{display:none}}.suggest-card{background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:16px}.suggest-card .cat{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:12px}.suggest-btn{display:block;width:100%;text-align:left;background:var(--card);border:1px solid var(--border-soft);color:var(--text);border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:10px;transition:border-color .12s,background .12s}.suggest-btn:last-child{margin-bottom:0}.suggest-btn:hover{border-color:var(--accent);background:var(--card-hover)}.welcome-empty{text-align:center;background:var(--panel);border:1px dashed var(--border);border-radius:14px;padding:28px;color:var(--muted)}.welcome-empty button{margin-top:14px;background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;padding:10px 18px;font-weight:600;font-size:14px}.composer{padding:12px 24px 22px;border-top:1px solid var(--border-soft)}.composer-inner{max-width:900px;margin:0 auto}.brain-pill-wrap{position:relative;display:inline-block;margin-bottom:10px}.brain-pill{display:inline-flex;align-items:center;gap:8px;background:#e6a23c1a;border:1px solid rgba(230,162,60,.35);color:var(--amber);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:600}.brain-pill.smart{background:#17b8a61a;border-color:#17b8a666;color:var(--accent)}.brain-menu{position:absolute;bottom:46px;left:0;z-index:40;width:300px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:6px;box-shadow:0 18px 50px #00000080}.brain-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:10px;border:none;background:transparent;color:var(--text);font-size:14px;text-align:left}.brain-menu-item:hover{background:var(--card-hover)}.brain-menu-item .meta{margin-left:auto;font-size:11px;color:var(--faint)}.brain-menu-item .check{color:var(--accent)}.brain-menu-sep{height:1px;background:var(--border-soft);margin:6px 8px}.brain-menu-head{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--faint);padding:8px 12px 4px}.input-row{display:flex;align-items:flex-end;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:8px 8px 8px 16px}.input-row textarea{flex:1;background:transparent;border:none;color:var(--text);outline:none;resize:none;font-size:15px;line-height:1.5;max-height:180px;padding:8px 0}.send-btn{width:40px;height:40px;border-radius:12px;border:none;background:var(--accent);color:var(--accent-ink);font-size:18px;display:grid;place-items:center;flex-shrink:0}.send-btn:disabled{opacity:.45;cursor:not-allowed}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:100;display:grid;place-items:center;padding:20px}.modal{width:100%;max-width:640px;max-height:86vh;overflow:hidden;background:var(--panel);border:1px solid var(--border);border-radius:18px;display:flex;flex-direction:column}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border-soft)}.modal-head h2{margin:0;font-size:17px}.modal-head .x{background:transparent;border:none;color:var(--muted);font-size:22px;line-height:1}.modal-body{padding:20px;overflow-y:auto}.modal-body::-webkit-scrollbar{width:8px}.modal-body::-webkit-scrollbar-thumb{background:#23282c;border-radius:8px}.field-label{font-size:12px;color:var(--muted);margin:14px 0 6px;display:block}.field{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px 12px;font-size:14px;outline:none}.field:focus{border-color:var(--accent)}textarea.field{resize:vertical;min-height:120px;line-height:1.5}.row-2{display:grid;grid-template-columns:70px 1fr;gap:10px}.btn-primary{background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;padding:11px 18px;font-weight:600;font-size:14px}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-line{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:10px;padding:10px 14px;font-size:13px}.btn-danger-line{border-color:#ef5b5b66;color:#ff9a9a}.chip-brain-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.brain-chip{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--card);border:1px solid var(--border-soft);border-radius:10px;font-size:13px}.brain-chip.active{border-color:var(--accent)}.doc-item{display:flex;align-items:center;gap:10px;padding:11px 12px;background:var(--card);border:1px solid var(--border-soft);border-radius:10px;margin-bottom:8px}.doc-item .t{font-size:13.5px}.doc-item .m{font-size:11px;color:var(--faint);margin-top:2px}.doc-item .rm{margin-left:auto;background:transparent;border:none;color:var(--faint);font-size:13px}.doc-item .rm:hover{color:var(--danger)}.hint{font-size:12px;color:var(--faint);margin-top:8px;line-height:1.5}.hint.warn{color:var(--amber)}.divider{height:1px;background:var(--border-soft);margin:18px 0}.mini-tabs{display:flex;gap:6px;margin-bottom:6px}.mini-tab{background:transparent;border:1px solid var(--border-soft);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:12px}.mini-tab.active{border-color:var(--accent);color:var(--accent)}.toast{margin-top:10px;font-size:13px;padding:9px 12px;border-radius:10px;background:#17b8a61f;border:1px solid rgba(23,184,166,.35);color:#8ff0e4}[data-theme=light]{--bg: #f5f6f8;--sidebar: #ffffff;--panel: #ffffff;--card: #eef1f4;--card-hover: #e5e9ee;--border: #d7dce2;--border-soft: #e6e9ed;--text: #171a1e;--muted: #576069;--faint: #8a929b;--accent: #0f9c8c;--accent-ink: #ffffff;--amber: #b9761a;--danger: #d64545}.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#0e7c70);display:grid;place-items:center;color:var(--accent-ink);font-weight:700;font-size:14px;flex-shrink:0}.topbar-right{display:flex;align-items:center;gap:12px}.profile-menu{position:relative}.avatar-btn{border:2px solid var(--border);cursor:pointer}.avatar-btn:hover{border-color:var(--accent)}.profile-dropdown{position:absolute;top:46px;right:0;z-index:60;width:240px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:8px;box-shadow:0 18px 50px #0006}.pd-name{padding:8px 10px 6px;font-size:13px;color:var(--muted)}.pd-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px;border:none;background:transparent;color:var(--text);border-radius:9px;font-size:14px;text-align:left}.pd-item:hover{background:var(--card-hover)}.pd-ico{width:18px;text-align:center}.pd-danger{color:var(--danger)}.pd-sep{height:1px;background:var(--border-soft);margin:6px 4px}.pd-label{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--faint);padding:4px 10px}.pd-appearance{display:flex;gap:4px;padding:2px 4px 6px}.pd-app-btn{flex:1;background:var(--card);border:1px solid var(--border-soft);color:var(--muted);border-radius:8px;padding:7px 4px;font-size:11.5px}.pd-app-btn.active{border-color:var(--accent);color:var(--accent);background:var(--card-hover)}.admin-page{max-width:1200px;margin:0 auto;padding:28px 24px 60px;min-height:100%;background:var(--bg)}.admin-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.admin-head h1{margin:0;font-size:28px}.admin-head-btns{display:flex;gap:10px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:14px}.stat-card{background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:18px 16px;text-align:center}.stat-value{font-size:26px;font-weight:700}.stat-label{font-size:12.5px;color:var(--muted);margin-top:4px}.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}@media (max-width: 720px){.chart-row{grid-template-columns:1fr}}.panel{background:var(--panel);border:1px solid var(--border-soft);border-radius:16px;padding:18px 20px}.panel.sub{background:var(--card)}.panel-title{font-size:14px;font-weight:600;margin-bottom:14px}.muted-inline{color:var(--muted);font-weight:400;font-size:12.5px}.mini-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.barchart{width:100%}.barchart-axis{display:flex;justify-content:space-between;font-size:11px;color:var(--faint);margin-top:6px}.chart-empty{height:120px;display:grid;place-items:center;color:var(--faint);font-size:13px;background:var(--card);border-radius:10px}.admin-row{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--card);border:1px solid var(--border-soft);border-radius:10px;margin-bottom:8px}.tag-bootstrap,.tag-admin{font-size:10px;text-transform:uppercase;letter-spacing:.05em;background:#17b8a626;color:var(--accent);border-radius:5px;padding:2px 6px;margin-left:8px}.link-danger{background:none;border:none;color:var(--danger);font-size:13px}.admin-create{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-top:12px}@media (max-width: 640px){.admin-create{grid-template-columns:1fr}}.user-toolbar{display:flex;gap:10px;margin-bottom:14px}.user-table{display:flex;flex-direction:column}.ut-head,.ut-row{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr 2.4fr;gap:10px;align-items:center;padding:12px 10px}.ut-head{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);border-bottom:1px solid var(--border-soft)}.ut-row{border-bottom:1px solid var(--border-soft)}.ut-row:hover{background:var(--card)}.ut-email{font-size:13.5px;font-weight:500}.ut-name{font-size:11.5px;color:var(--faint);margin-top:2px}.ut-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.status-badge{font-size:11px;padding:3px 9px;border-radius:999px;text-transform:capitalize;background:#78828c26;color:var(--muted)}.status-badge.active{background:#34c77826;color:#37c778}.status-badge.suspended{background:#e6a23c26;color:var(--amber)}.status-badge.disabled{background:#78828c2e;color:var(--muted)}.status-badge.terminated{background:#ef5b5b26;color:var(--danger)}.link-a{background:none;border:none;color:var(--muted);font-size:12.5px;padding:0}.link-a:hover{color:var(--text)}.link-a.warn{color:var(--amber)}.link-a.danger{color:var(--danger)}.link-a.good{color:#37c778}.profile-field{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid var(--border-soft);font-size:14px}.profile-field span{color:var(--muted)}.msg-feedback{display:flex;gap:6px;margin-top:8px}.fb{background:transparent;border:1px solid var(--border-soft);border-radius:8px;padding:3px 9px;font-size:13px;opacity:.6;transition:opacity .12s,border-color .12s}.fb:hover{opacity:1}.fb.up{opacity:1;border-color:#37c778}.fb.down{opacity:1;border-color:var(--danger)}.tier-selector{background:var(--card);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:9px 12px;font-size:13px;outline:none;min-width:110px}.convo-row{display:flex;align-items:center;gap:2px;padding:0;border-radius:10px;background:transparent;border:none}.convo-row:hover,.convo-row--active{background:var(--card)}.convo-open{display:flex;align-items:center;gap:9px;flex:1;min-width:0;background:transparent;border:none;color:var(--muted);font-size:13.5px;text-align:left;padding:9px 4px 9px 10px}.convo-row:hover .convo-open,.convo-row--active .convo-open{color:var(--text)}.convo-open .dot{color:var(--faint);flex-shrink:0}.convo-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.convo-del{background:transparent;border:none;color:var(--faint);font-size:13px;padding:6px 9px;border-radius:8px;opacity:0;flex-shrink:0;transition:opacity .12s}.convo-row:hover .convo-del{opacity:1}.convo-del:hover{color:var(--danger);background:#ef5b5b1a}.shared-tag{font-size:9px;text-transform:uppercase;letter-spacing:.04em;background:#17b8a629;color:var(--accent);border-radius:4px;padding:1px 5px;margin-left:4px}.admin-tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--border-soft);overflow-x:auto}.admin-tab{background:transparent;border:none;color:var(--muted);font-size:14px;padding:10px 16px;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}.admin-tab:hover{color:var(--text)}.admin-tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.knowledge-grid{display:grid;grid-template-columns:320px 1fr;gap:16px}@media (max-width: 780px){.knowledge-grid{grid-template-columns:1fr}}.kb-brain{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border-soft);background:var(--panel);color:var(--text);font-size:13.5px;margin-bottom:8px;text-align:left}.kb-brain:hover{border-color:var(--border)}.kb-brain.active{border-color:var(--accent)}.file-drop{display:block;margin-top:12px;border:1.5px dashed var(--border);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s}.file-drop:hover{border-color:var(--accent);background:var(--card)}.file-drop input{display:none}.file-drop-inner{padding:26px 18px;text-align:center;color:var(--muted)}.file-drop-inner>div:nth-child(2){color:var(--text);font-size:14px;margin-top:6px}.tag-general{color:var(--faint);font-weight:400;text-transform:none;letter-spacing:0}.md{line-height:1.6}.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}.md p{margin:0 0 10px}.md ul,.md ol{margin:0 0 10px;padding-left:22px}.md li{margin:3px 0}.md h1,.md h2,.md h3{margin:14px 0 8px;line-height:1.3}.md h1{font-size:20px}.md h2{font-size:17px}.md h3{font-size:15px}.md a{color:var(--accent);text-decoration:underline}.md strong{font-weight:700}.md code{background:var(--card);border:1px solid var(--border-soft);border-radius:5px;padding:1px 5px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.md pre{background:var(--card);border:1px solid var(--border-soft);border-radius:10px;padding:12px 14px;overflow-x:auto;margin:0 0 10px}.md pre code{background:none;border:none;padding:0}.md blockquote{border-left:3px solid var(--border);margin:0 0 10px;padding:2px 0 2px 12px;color:var(--muted)}.md table{border-collapse:collapse;width:100%;margin:0 0 10px;font-size:13.5px;display:block;overflow-x:auto}.md th,.md td{border:1px solid var(--border-soft);padding:7px 10px;text-align:left;vertical-align:top}.md th{background:var(--card);font-weight:600}.md hr{border:none;border-top:1px solid var(--border-soft);margin:14px 0}.btn-reindex{background:transparent;border:1px solid var(--border);color:var(--muted);border-radius:8px;padding:6px 12px;font-size:12px}.btn-reindex:hover{border-color:var(--accent);color:var(--accent)}