:root{
  --bg:#faf9f5; --panel:#f1efe7; --surface:#ffffff; --ink:#1f1e1d; --muted:#6b6a65; --line:#e2dfd3;
  --accent:#b5532f; --accent-soft:#f5e5dc; --on-accent:#ffffff;
  --good:#3d7a4f; --warn:#a8691a; --bad:#b3402f;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#262624; --panel:#1f1e1d; --surface:#30302e; --ink:#ece9df; --muted:#a39f95; --line:#43423c;
    --accent:#d97757; --accent-soft:#3b2d27; --on-accent:#1f1e1d;
    --good:#6fbf86; --warn:#e0a54e; --bad:#e8806e;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#262624; --panel:#1f1e1d; --surface:#30302e; --ink:#ece9df; --muted:#a39f95; --line:#43423c;
  --accent:#d97757; --accent-soft:#3b2d27; --on-accent:#1f1e1d;
  --good:#6fbf86; --warn:#e0a54e; --bad:#e8806e;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.55}
#root{height:100%}
h1,h2,h3{text-wrap:balance;margin:0}
p{margin:0 0 10px}
.serif{font-family:var(--serif);font-weight:400}
.muted{color:var(--muted)} .small{font-size:13px} .grow{flex:1}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font:inherit;color:inherit}
input,select,textarea{font:inherit;color:inherit}
input,select{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}

.mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--accent);color:var(--on-accent);font-size:12px;font-weight:600;letter-spacing:.03em;flex:none}
.mark.sm{width:26px;height:26px;border-radius:50%;font-size:10px;margin-top:2px}
.brand-row{display:flex;align-items:center;gap:10px}
.brand{font-family:var(--serif);font-size:18px}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 14px;cursor:pointer}
.btn:hover{background:var(--accent-soft)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);font-weight:500}
.btn.primary:hover{filter:brightness(.93)}
.icon-btn{border:0;background:transparent;border-radius:8px;width:34px;height:34px;cursor:pointer;font-size:18px;line-height:1;color:var(--muted)}
.icon-btn:hover{background:var(--accent-soft);color:var(--ink)}

/* Login */
.login{min-height:100%;display:grid;place-items:center;padding:24px 16px}
.login-card{width:100%;max-width:430px;display:flex;flex-direction:column;gap:14px}
.login h1{font-size:32px;margin-top:18px}
.login form{display:flex;flex-direction:column;gap:6px}
.login label{font-size:13px;color:var(--muted);margin-top:8px}
.err{min-height:20px;color:var(--bad);font-size:13px}
.demo{border-top:1px solid var(--line);padding-top:16px}
.demo-title{font-size:13px;color:var(--muted);margin-bottom:8px}
.demo-list{display:flex;flex-direction:column;gap:6px}
.demo-btn{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer}
.demo-btn:hover{border-color:var(--accent)}
.demo-btn span:last-child{font-size:12px;color:var(--muted);text-align:right}
.fine{font-size:12px;color:var(--muted);margin:0}
.center{text-align:center}

/* Shell */
.shell{height:100%;display:grid;grid-template-columns:268px 1fr}
.scrim{display:none}
.side{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:6px;padding:14px 10px;min-height:0}
.side .brand-row{padding:4px 8px 12px}
.newchat{width:100%;text-align:left;display:flex;align-items:center;gap:8px;background:var(--surface)}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.nav button{display:flex;align-items:center;gap:8px;background:transparent;border:0;border-radius:9px;padding:8px 10px;text-align:left;cursor:pointer}
.nav button:hover,.nav button.on{background:var(--accent-soft)}
.recents-title{font-size:12px;color:var(--muted);padding:14px 10px 4px}
.recents{flex:1;overflow:auto;display:flex;flex-direction:column;gap:1px;min-height:0}
.recents button{background:transparent;border:0;border-radius:9px;padding:7px 10px;text-align:left;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}
.recents button:hover,.recents button.on{background:var(--accent-soft)}
.usercard{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding:12px 8px 4px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-size:12px;font-weight:600;flex:none}
.uinfo{min-width:0;flex:1}
.uinfo b{display:block;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.uinfo span{display:block;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.linkbtn{background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:13px;padding:4px 6px;border-radius:6px}
.linkbtn:hover{color:var(--ink);background:var(--accent-soft)}

.main{display:flex;flex-direction:column;min-height:0;min-width:0}
.topbar{display:flex;align-items:center;gap:10px;padding:10px 16px;min-height:56px;flex-wrap:wrap}
.topbar select{width:auto;max-width:100%;padding:7px 10px;font-size:14px;border-radius:9px}
.menu{display:none}
.meter{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.mbar{width:110px;height:6px;border-radius:9px;background:var(--line);overflow:hidden}
.mbar i{display:block;height:100%;background:var(--good)}
.mbar i.warn{background:var(--warn)} .mbar i.bad{background:var(--bad)}
.scroll{flex:1;overflow:auto;min-height:0}
.thread{max-width:740px;margin:0 auto;padding:12px 16px 8px}
.hero{text-align:center;padding:48px 0 22px}
.hero h1{font-size:38px;line-height:1.15}
.hero p{color:var(--muted);margin-top:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:22px}
.chip{background:transparent;border:1px solid var(--line);border-radius:99px;padding:7px 14px;font-size:14px;cursor:pointer;color:var(--muted)}
.chip:hover{border-color:var(--accent);color:var(--ink);background:var(--surface)}
.msg{display:flex;gap:12px;margin:0 0 22px}
.msg.user{justify-content:flex-end}
.bubble{background:var(--panel);border-radius:18px;padding:9px 16px;max-width:85%}
.bubble p{margin:0}
.msg.bot .body{flex:1;min-width:0}
.body ul{margin:0 0 10px;padding-left:20px}
.body li{margin:3px 0}
.meta{margin-top:6px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.dots{color:var(--muted);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.25}}
.composer-wrap{max-width:772px;width:100%;margin:0 auto;padding:0 16px 12px}
.sysbox{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:8px;font-size:13px;color:var(--muted)}
.composer{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:12px 12px 10px 16px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.composer:focus-within{border-color:var(--accent)}
.composer textarea{width:100%;border:0;outline:0;resize:none;background:transparent;max-height:200px;padding:2px 0}
.composer-row{display:flex;align-items:center;gap:8px;margin-top:6px}
.send{width:34px;height:34px;border-radius:10px;border:0;background:var(--accent);color:var(--on-accent);cursor:pointer;font-size:18px;line-height:1}
.send:disabled{opacity:.4;cursor:default}

/* Painel */
.page{max-width:1120px;margin:0 auto;padding:20px 20px 48px;display:flex;flex-direction:column;gap:18px}
.page-head{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;justify-content:space-between}
.page-head h1{font-size:30px}
.ctrls{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.fx,.switch{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.fx input{width:84px;padding:6px 8px}
.switch input{width:auto}
.banner{background:var(--accent-soft);border-radius:12px;padding:10px 14px;font-size:13px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.tile .label{font-size:13px;color:var(--muted)}
.tile .value{font-family:var(--serif);font-size:30px;line-height:1.2;margin-top:2px;font-variant-numeric:tabular-nums}
.tiles.sm .value{font-size:24px}
.tile .sub{font-size:12px;color:var(--muted)}
.card h2{font-size:17px;font-family:var(--serif);font-weight:500;margin-bottom:2px}
.two{display:grid;grid-template-columns:1.1fr 1fr;gap:12px;align-items:start}
.chart svg{width:100%;height:auto;display:block;margin-top:8px}
.grid{stroke:var(--line);stroke-width:1}
.ax{fill:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}
.bar{fill:var(--accent);opacity:.5}
.bar.last{opacity:1}
.srow{padding:11px 0;border-top:1px solid var(--line)}
.srow:first-of-type{border-top:0}
.shead{display:flex;align-items:center;gap:10px;margin-bottom:9px;flex-wrap:wrap}
.track{position:relative;height:10px;background:var(--line);border-radius:99px}
.fill{height:100%;border-radius:99px;background:var(--accent)}
.proj{position:absolute;top:-3px;width:2px;height:16px;background:var(--ink);opacity:.75;border-radius:2px}
.sfoot{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;margin-top:9px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.sfoot input{width:92px;padding:4px 8px;font-size:13px;border-radius:8px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:2px 10px;border-radius:99px;border:1px solid var(--line);background:var(--surface);white-space:nowrap}
.pill i{width:7px;height:7px;border-radius:50%;background:currentColor}
.pill.good{color:var(--good)} .pill.warn{color:var(--warn)} .pill.bad{color:var(--bad)} .pill.off{color:var(--muted)}
.legend{font-size:12px;color:var(--muted);margin-top:8px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:12px 0 4px}
.toolbar input{max-width:280px} .toolbar select{width:auto}
.tablewrap{overflow:auto;max-height:540px;border-top:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:880px}
th{font-weight:500;color:var(--muted);text-align:left;font-size:12px;position:sticky;top:0;background:var(--surface);z-index:1}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums}
.em{display:block;font-size:12px;color:var(--muted)}
.share{display:inline-block;height:6px;border-radius:9px;background:var(--accent);vertical-align:middle;margin-right:8px;min-width:2px}

#toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(8px);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:calc(100% - 32px);z-index:50}
#toast.show{opacity:1;transform:translateX(-50%)}

@media (max-width:860px){ .two{grid-template-columns:1fr} }
@media (max-width:800px){
  .shell{grid-template-columns:1fr}
  .side{position:fixed;inset:0 auto 0 0;width:280px;z-index:20;transform:translateX(-100%);transition:transform .2s}
  .shell.open .side{transform:none;box-shadow:0 0 40px rgba(0,0,0,.25)}
  .shell.open .scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:10}
  .menu{display:inline-block}
  .hero h1{font-size:30px}
}
@media (prefers-reduced-motion:reduce){ *{animation:none!important;transition:none!important} }

/* Extras (app real) */
.ok{color:var(--good);font-size:13px}
.msg.bot .body .txt{white-space:pre-wrap;word-wrap:break-word}
.bubble .txt{white-space:pre-wrap;word-wrap:break-word}
.hide{display:none!important}
.sidehead{display:flex;gap:6px;align-items:center}
.login form .btn{margin-top:14px}
.err.show{display:block}
.filechip{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);border-radius:99px;padding:4px 6px 4px 12px;font-size:13px;margin-bottom:6px;max-width:100%}
.filechip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.filechip button{border:0;background:transparent;cursor:pointer;font-size:16px;line-height:1;color:var(--muted);border-radius:50%;width:22px;height:22px}
.filechip button:hover{color:var(--ink)}
.spark{width:28px;height:28px;flex:none;display:inline-block}
.brand-row .spark{width:30px;height:30px}
.hero h1{display:flex;align-items:center;justify-content:center;gap:12px}
.hero-spark{width:40px;height:40px}
.msg.bot .spark{width:26px;height:26px;margin-top:2px}
.login h1{margin-top:18px}
.rrow{display:flex;align-items:center;border-radius:9px}
.rrow:hover,.rrow.on{background:var(--accent-soft)}
.recents .rrow button.rtitle{flex:1;min-width:0;background:transparent}
.recents .rrow button.rdel{background:transparent;color:var(--muted);width:28px;padding:4px 0;text-align:center;font-size:16px;opacity:0;flex:none}
.rrow:hover .rdel,.rdel:focus-visible{opacity:1}
.rdel:hover{color:var(--bad)}
@media (hover:none){.recents .rrow button.rdel{opacity:1}}

/* Painel admin */
.nav a.navlink{display:flex;align-items:center;gap:8px;border-radius:9px;padding:8px 10px;text-decoration:none;color:inherit}
.nav a.navlink:hover{background:var(--accent-soft)}
.side .grow{flex:1}
.btn{text-decoration:none;display:inline-block}
.btn.sm{padding:4px 10px;font-size:13px}
.acts{white-space:nowrap;display:flex;gap:6px}
.modal-back{position:fixed;inset:0;background:rgba(0,0,0,.45);display:grid;place-items:center;z-index:40;padding:16px}
.modal{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;width:100%;max-width:480px;max-height:90vh;overflow:auto}
.modal h2{font-family:var(--serif);font-weight:500;font-size:20px;margin-bottom:12px}
.modal-foot{display:flex;gap:8px;justify-content:flex-end;margin-top:16px;flex-wrap:wrap}
.form{display:flex;flex-direction:column;gap:12px}
.form label,.cfgrid label,label.block{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
.checks{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:6px}
.chk{display:inline-flex!important;flex-direction:row!important;align-items:center;gap:6px;color:var(--ink)!important;font-size:14px!important}
.chk input{width:auto}
.passbox{font-family:ui-monospace,Consolas,monospace;font-size:20px;letter-spacing:.04em;background:var(--panel);border:1px dashed var(--line);border-radius:10px;padding:12px;text-align:center;margin:10px 0;user-select:all}
.cfgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:10px 0}
.mcard{border-top:1px solid var(--line);padding:14px 0}
textarea{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;resize:vertical}
.toolbar .grow{flex:1}
table.utable{min-width:960px}
.page .banner + .tiles{margin-top:0}

/* Ícones (sprite assets/icons.svg) */
.ico{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px}
.btn .ico,.nav .ico,.filechip .ico{width:16px;height:16px;vertical-align:-3px;margin-right:4px}
.nav .ico{margin-right:0;color:var(--muted)}
.nav button:hover .ico,.nav button.on .ico,.nav a:hover .ico{color:var(--accent)}
.newchat .ico{margin-right:0}
.icon-btn{display:inline-grid;place-items:center}
.icon-btn .ico{width:19px;height:19px;margin:0}
.send{display:grid;place-items:center;padding:0}
.send .ico{width:18px;height:18px;margin:0;stroke-width:2.25}
.filechip button{display:grid;place-items:center;padding:0}
.filechip button .ico{width:14px;height:14px;margin:0}
.rdel .ico{width:14px;height:14px;margin:0}
.recents .rrow button.rdel{display:grid;place-items:center}

/* Texto das respostas (markdown renderizado) */
.txt.md{white-space:normal;word-wrap:break-word}
.txt.md p{margin:0 0 10px}
.txt.md ul,.txt.md ol{margin:0 0 10px;padding-left:22px}
.txt.md li{margin:3px 0}
.txt.md strong{font-weight:600}
.txt.md code{font-family:ui-monospace,Consolas,monospace;font-size:.9em;background:var(--panel);border-radius:5px;padding:1px 5px}
.txt.md hr{border:0;border-top:1px solid var(--line);margin:12px 0}
.txt.md > :last-child{margin-bottom:0}

/* Menu "..." das conversas */
.recents .rrow button.rmore{background:transparent;color:var(--muted);width:30px;height:28px;padding:0;display:grid;place-items:center;flex:none;opacity:0;border-radius:8px}
.recents .rrow:hover button.rmore,.recents .rrow.on button.rmore,.recents .rrow.menu-open button.rmore,.recents .rrow button.rmore:focus-visible{opacity:1}
.recents .rrow button.rmore:hover{background:var(--line);color:var(--ink)}
.rrow.menu-open{background:var(--accent-soft)}
@media (hover:none){.recents .rrow button.rmore{opacity:1}}
.rmore .ico{width:18px;height:18px;margin:0}
.rname{flex:1;min-width:0;margin:2px 4px;padding:5px 8px;font-size:14px;border-radius:8px}
.cmenu{position:fixed;z-index:60;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:6px;min-width:200px;box-shadow:0 8px 30px rgba(0,0,0,.28)}
.cm-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:transparent;border:0;border-radius:8px;padding:9px 10px;cursor:pointer;font-size:14px}
.cm-item:hover,.cm-item:focus-visible{background:var(--accent-soft)}
.cm-item .ico{width:17px;height:17px;margin:0;color:var(--muted)}
.cm-item.danger{color:var(--bad)}
.cm-item.danger .ico{color:var(--bad)}
.btn.danger-btn{background:var(--bad);border-color:var(--bad);color:#fff;font-weight:500}
.btn.danger-btn:hover{filter:brightness(.92);background:var(--bad)}