:root{
  --azul:#1f4e9e; --azul2:#2a6fd6; --azul3:#6ea3e8; --azullt:#cfe0f7;
  --green:#1a7f48; --red:#b3261e; --amber:#c8860d; --teal:#0e8f8a; --purple:#6a4bb0; --orange:#dd6b20;
  --ink:#16202e; --mut:#6b7686; --line:#e6eaf0; --bg:#f6f8fb; --card:#fff;
  --grad:linear-gradient(120deg,#1f4e9e 0%,#2a6fd6 100%);
  --shadow:0 1px 2px rgba(22,32,46,.06), 0 8px 24px rgba(22,32,46,.07);
  --radius:16px;
  font-family:"Helvetica Neue",Helvetica,Arial,system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink)}
.hidden{display:none !important}
button{font-family:inherit;cursor:pointer}

/* ===== LOGIN ===== */
.login{position:fixed;inset:0;display:grid;place-items:center;background:var(--grad);overflow:hidden}
.login-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.login-bg-ov{position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(13,40,82,.82),rgba(31,78,158,.64))}
.login-card{position:relative;z-index:2;width:min(420px,92vw);background:var(--card);border-radius:22px;padding:34px 32px;box-shadow:0 24px 70px rgba(0,0,0,.38)}
.devby{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:16px;font-size:11px;color:var(--mut);font-weight:600;letter-spacing:.02em}
.devby img{height:15px;width:auto;vertical-align:middle}
.devby-dark{color:#cdddf2;border-top:1px solid rgba(255,255,255,.14);padding-top:11px;margin-top:6px}
.devby-dark img{height:14px;opacity:.95}
.brand{display:flex;align-items:center;gap:13px}
.brand-dot{width:34px;height:34px;border-radius:10px;background:var(--grad);flex:0 0 auto;box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}
.brand.small .brand-dot{width:26px;height:26px;border-radius:8px}
.brand-title{font-weight:800;font-size:16px;color:var(--azul)}
.brand-sub{font-size:12px;color:var(--mut);margin-top:2px}
.logo-login{width:60px;height:auto;display:block;margin:0 auto 12px;max-width:80%}
.brand-login{text-align:center}
.brand-login .brand-sub{margin-top:6px}
.logo-top{height:30px;width:auto;display:block}
.brand.small .brand-title{font-size:14px;color:var(--mut);font-weight:700}
#login-form{display:flex;flex-direction:column;gap:14px;margin-top:24px}
#login-form label{font-size:12px;font-weight:700;color:var(--mut);display:flex;flex-direction:column;gap:6px}
#login-form input{padding:12px 13px;border:1px solid var(--line);border-radius:11px;font-size:15px;color:var(--ink)}
#login-form input:focus{outline:none;border-color:var(--azul2);box-shadow:0 0 0 3px var(--azullt)}
#login-btn{margin-top:6px;padding:13px;border:none;border-radius:11px;background:var(--grad);color:#fff;font-weight:800;font-size:15px}
#login-btn:disabled{opacity:.6}
.login-error{color:var(--red);font-size:13px;min-height:18px;font-weight:600}
.login-foot{margin-top:18px;font-size:12px;color:var(--mut);text-align:center}

/* ===== APP LAYOUT ===== */
.app{display:flex;flex-direction:row;height:100vh}
.main{flex:1;display:flex;flex-direction:column;min-width:0}

/* ===== SIDEBAR (histórico de conversas) ===== */
.sidebar{width:262px;flex:0 0 262px;background:linear-gradient(180deg,#16407e,#0f2d5a);
  color:#eaf1fb;display:flex;flex-direction:column;padding:14px 12px}
.new-chat-btn{width:100%;padding:11px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);color:#fff;border-radius:11px;font-weight:700;font-size:14px}
.new-chat-btn:hover{background:rgba(255,255,255,.20)}
.conv-search{width:100%;margin-top:10px;padding:8px 11px;border-radius:9px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;font-size:13px}
.conv-search::placeholder{color:#9fbbe0}
.conv-search:focus{outline:none;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.14)}
.conv-rename{flex:1;font-size:13px;border:none;border-radius:5px;padding:3px 6px;background:#fff;color:var(--ink)}
.conv-rename:focus{outline:2px solid var(--azul2)}
.conv-list{flex:1;overflow-y:auto;margin-top:10px;display:flex;flex-direction:column;gap:3px}
.conv{display:flex;align-items:center;gap:6px;padding:9px 10px;border-radius:9px;cursor:pointer;
  font-size:13px;color:#dce8f8;transition:.1s}
.conv:hover{background:rgba(255,255,255,.10)}
.conv.active{background:rgba(255,255,255,.20);font-weight:600;color:#fff}
.conv-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv-del{opacity:0;border:none;background:none;color:#cdddf2;font-size:15px;line-height:1;cursor:pointer;padding:0 2px}
.conv:hover .conv-del{opacity:.65}
.conv-del:hover{opacity:1}
.conv-empty{font-size:12px;color:#9fbbe0;text-align:center;margin-top:24px;padding:0 8px;line-height:1.5}
.sb-foot{border-top:1px solid rgba(255,255,255,.16);padding-top:10px;margin-top:8px;
  display:flex;align-items:center;justify-content:space-between;gap:8px}
.sb-user{font-size:11.5px;color:#cdddf2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sb-foot .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);padding:6px 10px;font-size:12px}
.sb-foot .btn-ghost:hover{background:rgba(255,255,255,.14)}
@media(max-width:760px){.sidebar{width:64px;flex-basis:64px}.conv-list,.sb-user,.new-chat-btn{font-size:0}
  .new-chat-btn::after{content:'+';font-size:20px}}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 20px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.top-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{font-size:12px;font-weight:700;padding:5px 10px;border-radius:999px;background:var(--azullt);color:var(--azul)}
.chip-muted{background:#eef1f6;color:var(--mut)}
.chip.ok{background:#e7f6ee;color:var(--green)}
.chip.off{background:#fbeceb;color:var(--red)}
.btn-ghost{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:9px;padding:7px 12px;font-size:13px;font-weight:600}
.btn-ghost:hover{background:var(--bg)}
.export-wrap{position:relative}
.export-menu{position:absolute;right:0;top:calc(100% + 6px);background:var(--card);border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow);padding:6px;min-width:180px;z-index:30;display:flex;flex-direction:column;gap:2px}
.export-menu button{text-align:left;border:none;background:none;padding:9px 12px;border-radius:8px;font-size:13px;color:var(--ink)}
.export-menu button:hover{background:var(--azullt)}

.stream{flex:1;overflow-y:auto;padding:26px 0 40px}
.welcome{max-width:760px;margin:24px auto;padding:0 20px;text-align:center}
.welcome h1{font-size:24px;color:var(--ink);margin:0 0 8px}
.welcome p{color:var(--mut);font-size:15px;line-height:1.5;margin:0 auto 22px;max-width:600px}
.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:11px;max-width:680px;margin:0 auto}
.sugg{text-align:left;border:1px solid var(--line);background:var(--card);border-radius:12px;padding:13px 15px;font-size:13.5px;color:var(--ink);box-shadow:var(--shadow);transition:.12s}
.sugg:hover{border-color:var(--azul2);transform:translateY(-1px)}
@media(max-width:640px){.suggestions{grid-template-columns:1fr}}

/* ===== MESSAGES ===== */
.msg{max-width:860px;margin:0 auto 22px;padding:0 20px}
.msg-user{display:flex;justify-content:flex-end}
.msg-user .bubble{background:var(--grad);color:#fff;padding:11px 16px;border-radius:16px 16px 4px 16px;max-width:78%;font-size:15px;line-height:1.45;box-shadow:var(--shadow);white-space:pre-wrap}
.msg-ai .ai-head{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--azul);font-size:13px;margin-bottom:8px}
.msg-ai .ai-head .dot{width:22px;height:22px;border-radius:7px;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.msg-ai .ai-head .dot svg{width:14px;height:14px;display:block}
.msg-ai .ai-head.is-system{color:#64748b}
.msg-ai .ai-head.is-system .dot{background:#64748b}
.md-text{font-size:15px;line-height:1.55;color:var(--ink);white-space:pre-wrap;margin:6px 0}
.md-text strong{font-weight:800}
.md-text em{font-style:italic}
.md-text a{color:var(--azul)}
.md-text code{background:#eef1f6;border-radius:5px;padding:1px 6px;font-size:.9em;font-family:ui-monospace,Menlo,monospace}
.md-text .codeblk{display:block;white-space:pre-wrap;padding:10px 12px;margin:8px 0}
.md-text .md-tbl{border-collapse:collapse;width:100%;font-size:13px;margin:10px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.md-text .md-tbl th{background:var(--azul);color:#fff;padding:8px 11px;text-align:left;font-weight:700}
.md-text .md-tbl td{padding:7px 11px;border-bottom:1px solid var(--line)}
.md-text .md-tbl tr:nth-child(even) td{background:#f8fafd}

/* stage pill */
.stage{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 15px;font-size:13px;color:var(--azul);font-weight:700;box-shadow:var(--shadow);margin:6px 0}
.stage .spin{width:14px;height:14px;border:2px solid var(--azullt);border-top-color:var(--azul2);border-radius:50%;animation:sp .7s linear infinite}
.stage .bar{width:80px;height:6px;border-radius:3px;background:var(--azullt);overflow:hidden}
.stage .bar > i{display:block;height:100%;background:var(--azul2);width:0;transition:width .25s}
@keyframes sp{to{transform:rotate(360deg)}}

/* ===== BLOCKS ===== */
.block{margin:14px 0}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.kpi{background:linear-gradient(180deg,#fbfcfe,#f4f7fc);border:1px solid var(--line);border-radius:13px;padding:14px 15px}
.kpi-val{font-size:23px;font-weight:800;color:var(--azul);line-height:1.1}
.kpi-val small{font-size:13px;font-weight:700;color:var(--mut);margin-left:4px}
.kpi-lbl{font-size:12.5px;color:var(--mut);margin-top:6px;font-weight:600}
.kpi-simple{font-size:11.5px;color:var(--mut);margin-top:7px;line-height:1.35}
.kpi.good .kpi-val{color:var(--green)} .kpi.bad .kpi-val{color:var(--red)} .kpi.warn .kpi-val{color:var(--amber)}
.kpi-delta{font-size:12px;font-weight:800;margin-top:4px}
.kpi-delta.up{color:var(--red)} .kpi-delta.down{color:var(--green)}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.card-title{font-weight:800;font-size:14.5px;color:var(--ink);margin:0 0 10px}
.chart{width:100%;height:340px}
.block-note{font-size:12px;color:var(--mut);margin-top:9px;line-height:1.4}

table.tbl{border-collapse:collapse;width:100%;font-size:13px}
.tbl thead th{position:sticky;top:0;background:var(--azul);color:#fff;font-weight:700;padding:9px 12px;text-align:right;cursor:pointer;white-space:nowrap}
.tbl thead th:first-child{text-align:left}
.tbl thead th:hover{background:var(--azul2)}
.tbl tbody td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
.tbl tbody td:first-child{text-align:left;font-weight:600}
.tbl tbody tr:nth-child(even){background:#f8fafd}
.tbl tbody tr:hover{background:var(--azullt)}
.tbl-wrap{max-height:420px;overflow:auto;border:1px solid var(--line);border-radius:12px}
.tbl-filter{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:9px;margin-bottom:9px;font-size:13px}

.callout{border-radius:12px;padding:13px 16px;font-size:13.5px;line-height:1.5;border:1px solid}
.callout-title{font-weight:800;font-size:11.5px;text-transform:uppercase;letter-spacing:.07em;margin-bottom:4px;display:block}
.callout.info{background:#eef4ff;border-color:#d6e3fb;color:#22365e}.callout.info .callout-title{color:var(--azul)}
.callout.success{background:#eafaf1;border-color:#bfe6cf;color:#155}.callout.success .callout-title{color:var(--green)}
.callout.warn{background:#fff7e8;border-color:#f1ddb0;color:#6b4e10}.callout.warn .callout-title{color:var(--amber)}
.callout.danger{background:#fbeceb;border-color:#f1c3bf;color:#6b1a14}.callout.danger .callout-title{color:var(--red)}

.simples,.why,.note{border-radius:12px;padding:12px 15px;margin-top:10px;font-size:13.5px;line-height:1.5}
.simples{background:#eafaf1;border:1px solid #bfe6cf;border-left:5px solid var(--green)}
.why{background:#eef4ff;border:1px solid #d6e3fb;border-left:5px solid var(--azul)}
.note{background:#fff7e8;border:1px solid #f1ddb0;border-left:5px solid var(--amber)}
.tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.simples .tag{color:var(--green)} .why .tag{color:var(--azul)} .note .tag{color:var(--amber)}

/* ===== COMPOSER ===== */
.composer{border-top:1px solid var(--line);background:var(--card);padding:12px 20px 14px}
.composer-row{display:flex;align-items:flex-end;gap:10px;max-width:860px;margin:0 auto}
.attach-btn{flex:0 0 auto;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;display:grid;place-items:center;font-size:18px;background:var(--bg)}
.attach-btn:hover{background:var(--azullt)}
#composer-input{flex:1;resize:none;border:1px solid var(--line);border-radius:12px;padding:11px 14px;font-size:15px;font-family:inherit;max-height:160px;line-height:1.4}
#composer-input:focus{outline:none;border-color:var(--azul2);box-shadow:0 0 0 3px var(--azullt)}
#send-btn{flex:0 0 auto;width:42px;height:42px;border:none;border-radius:11px;background:var(--grad);color:#fff;font-size:17px}
#send-btn:disabled{opacity:.5}
.composer-hint{max-width:860px;margin:7px auto 0;font-size:11px;color:var(--mut);text-align:center}
.attach-pills{max-width:860px;margin:0 auto 8px;display:flex;gap:8px;flex-wrap:wrap}
.attach-pills:empty{margin:0}
.pill{font-size:12px;background:var(--azullt);color:var(--azul);border-radius:999px;padding:5px 11px;font-weight:700;display:inline-flex;align-items:center;gap:8px}
.pill.err{background:#fbeceb;color:var(--red)}
.pill-x{border:none;background:none;color:inherit;cursor:pointer;font-size:15px;line-height:1;padding:0;opacity:.6;font-weight:800}
.pill-x:hover{opacity:1}

/* glossário tooltip */
.gloss{border-bottom:1px dotted var(--azul3);cursor:help}

/* ===== POPUP (UI.confirm / UI.alert) ===== */
.ui-modal-ov{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px;
  background:rgba(13,40,82,.42);backdrop-filter:blur(3px);
  opacity:0;transition:opacity .18s ease}
.ui-modal-ov.show{opacity:1}
.ui-modal{position:relative;width:min(420px,94vw);background:var(--card);border-radius:18px;
  padding:26px 24px 22px;box-shadow:0 24px 70px rgba(13,40,82,.32);text-align:center;
  transform:translateY(10px) scale(.97);opacity:0;transition:transform .2s ease,opacity .2s ease}
.ui-modal-ov.show .ui-modal{transform:translateY(0) scale(1);opacity:1}
.ui-modal-icon{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;
  display:grid;place-items:center;font-size:24px;font-weight:800;line-height:1}
.ui-modal-icon.info{background:var(--azullt);color:var(--azul)}
.ui-modal-icon.success{background:#dcf3e6;color:var(--green)}
.ui-modal-icon.warn{background:#fcf0d6;color:var(--amber)}
.ui-modal-icon.danger{background:#fbe3e1;color:var(--red)}
.ui-modal-title{font-size:18px;font-weight:800;color:var(--ink)}
.ui-modal-msg{font-size:14px;color:var(--mut);margin-top:7px;line-height:1.5}
.ui-modal-actions{display:flex;gap:10px;justify-content:center;margin-top:22px}
.ui-btn{padding:11px 20px;border:none;border-radius:11px;font-weight:700;font-size:14px;
  font-family:inherit;cursor:pointer;transition:.12s;min-width:104px}
.ui-btn-ghost{background:#eef2f8;color:var(--mut)}
.ui-btn-ghost:hover{background:#e3e9f2;color:var(--ink)}
.ui-btn-primary{background:var(--grad);color:#fff}
.ui-btn-primary:hover{filter:brightness(1.06)}
.ui-btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px var(--azullt)}
.ui-btn-danger{background:linear-gradient(120deg,#c8302a,#b3261e)}
.ui-btn-danger:focus-visible{box-shadow:0 0 0 3px #fbe3e1}

/* ===== TOAST (aviso flutuante) ===== */
.ui-toast-host{position:fixed;top:18px;right:18px;z-index:1100;display:flex;flex-direction:column;gap:10px;
  pointer-events:none}
.ui-toast{display:flex;align-items:center;gap:10px;background:var(--card);color:var(--ink);
  border-radius:12px;padding:12px 15px;font-size:13.5px;font-weight:600;max-width:340px;
  box-shadow:0 10px 30px rgba(13,40,82,.22);border-left:4px solid var(--azul2);
  pointer-events:auto;cursor:pointer;
  opacity:0;transform:translateX(20px);transition:opacity .25s ease,transform .25s ease}
.ui-toast.show{opacity:1;transform:translateX(0)}
.ui-toast-success{border-left-color:var(--green)}
.ui-toast-warn{border-left-color:var(--amber)}
.ui-toast-danger{border-left-color:var(--red)}
.ui-toast-icon{flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  font-size:13px;font-weight:800}
.ui-toast-icon.info{background:var(--azullt);color:var(--azul)}
.ui-toast-icon.success{background:#dcf3e6;color:var(--green)}
.ui-toast-icon.warn{background:#fcf0d6;color:var(--amber)}
.ui-toast-icon.danger{background:#fbe3e1;color:var(--red)}