:root {
  accent-color: #b3383c;
  /* Identidade do Instituto Educacional Vera Cruz: vermelho da cruz + azul-marinho do nome */
  --marca: #b3383c; --marca-esc: #8e2a2e; --marca-claro: #fbf0f0; --marca-borda: #e6aeb0;
  --marinho: #2c365a; --marinho-esc: #1f2745; --marinho-txt: #3a4568;
  --ok: #15803d; --ok-bg: #e8f7ee; --alerta: #b45309; --alerta-bg: #fff4e0; --erro: #b91c1c; --erro-bg: #fdecec;
  --tinta: #1d2440; --tinta2: #475569; --linha: #e2e8f0; --fundo: #f4f6fb; --branco: #fff;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--fundo); color: var(--tinta); font-size: 15px; }
h1 { font-size: 22px; margin: 0 0 6px; color: var(--marinho); }
h1::after { content: ""; display: block; width: 42px; height: 3px; background: var(--marca); border-radius: 3px; margin-top: 8px; }
h1 small { font-size: 13px; font-weight: 400; }
h2 { font-size: 16px; margin: 0 0 12px; }
code { background: #eef2f7; padding: 1px 5px; border-radius: 4px; }
.muted { color: var(--tinta2); }
.small { font-size: 12px; }
[hidden] { display: none !important; }

/* layout */
.layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); min-height: 100vh; }
.grid2 > *, .grid-conv > *, .editor > *, main { min-width: 0; }
.side { background: linear-gradient(180deg, var(--marinho), var(--marinho-esc)); color: #fff; padding: 20px 14px; display: flex; flex-direction: column; gap: 18px; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand small { display: block; opacity: .7; font-size: 12px; }
.brand-logo { width: 46px; height: 46px; background: #fff; border-radius: 12px; padding: 5px; flex-shrink: 0; box-shadow: 0 2px 8px rgba(0,0,0,.18); }
.brand b { letter-spacing: .2px; }
.lema { font-size: 10px; letter-spacing: 1.6px; text-transform: uppercase; color: #e9b8ba; margin-top: 2px; }
nav { display: flex; flex-direction: column; gap: 4px; }
nav a { color: #d6dbeb; padding: 10px 12px; border-radius: 10px; cursor: pointer; text-decoration: none; display: flex; align-items: center; gap: 6px; }
nav a:hover { background: rgba(255,255,255,.08); }
nav a.ativo { background: #fff; color: var(--marinho); font-weight: 600; box-shadow: inset 4px 0 0 var(--marca); }
.badge { margin-left: auto; background: #ef4444; color: #fff; border-radius: 999px; font-size: 11px; padding: 1px 7px; }
.sair { margin-top: auto; color: #c9cfe3; text-decoration: none; font-size: 14px; padding: 8px 12px; }
main { padding: 28px 32px; max-width: 1100px; width: 100%; }
.tab { display: none; }
.tab.ativo { display: block; }
.card { background: var(--branco); border: 1px solid var(--linha); border-radius: 14px; padding: 18px 20px; margin: 14px 0; }
.grid2 { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.grid-conv { display: grid; grid-template-columns: 320px 1fr; gap: 16px; align-items: start; }

/* formulários */
label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; color: var(--tinta2); margin: 8px 0; }
input, textarea, select { font: inherit; color: var(--tinta); border: 1px solid #cbd5e1; border-radius: 10px; padding: 9px 11px; background: #fff; }
input:focus, textarea:focus { outline: 2px solid var(--marca-borda); border-color: var(--marca); }
fieldset { border: 1px solid var(--linha); border-radius: 12px; margin: 12px 0; padding: 10px 14px; }
legend { font-size: 13px; font-weight: 700; color: var(--tinta2); padding: 0 6px; }
.dias { display: flex; gap: 8px; flex-wrap: wrap; }
.dia { flex-direction: row; align-items: center; gap: 4px; font-weight: 500; }
.switch { flex-direction: row; align-items: center; gap: 8px; margin-top: 14px; color: var(--tinta); font-weight: 600; }

.btn { font: inherit; font-size: 14px; border: 1px solid #cbd5e1; background: #fff; color: var(--tinta); border-radius: 10px; padding: 9px 14px; cursor: pointer; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; flex-direction: row; margin: 0; }
.btn:hover { background: #f1f5f9; }
.btn.primary { background: var(--marca); border-color: var(--marca); color: #fff; }
.btn.primary:hover { background: var(--marca-esc); }
.btn.perigo { color: var(--erro); border-color: #fca5a5; }
.btn.mini { padding: 5px 10px; font-size: 13px; }
.acoes { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 12px 0; }

/* status / qr */
.status-linha { display: flex; align-items: center; gap: 8px; font-size: 17px; margin: 0 0 4px; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: #94a3b8; }
.dot.ok { background: #22c55e; box-shadow: 0 0 0 4px #dcfce7; }
.dot.alerta { background: #f59e0b; box-shadow: 0 0 0 4px #fef3c7; }
.dot.erro { background: #ef4444; box-shadow: 0 0 0 4px #fee2e2; }
.qr-box { text-align: center; border: 2px dashed var(--marca-borda); border-radius: 14px; padding: 14px; margin: 12px 0; background: var(--marca-claro); }
.qr-box img { width: 280px; max-width: 100%; aspect-ratio: 1; background: #fff; border-radius: 10px; padding: 8px; }
.kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; text-align: center; }
.kpis div { background: var(--fundo); border-radius: 12px; padding: 12px 6px; border-top: 3px solid var(--marinho); }
.kpis b { display: block; font-size: 24px; color: var(--marinho); }
.mes { margin: 10px 0 0; font-size: 13px; }
.kpis span { font-size: 12px; color: var(--tinta2); }

/* base */
.editor { display: grid; grid-template-columns: 1fr; gap: 12px; }
.editor:has(.preview:not([hidden])) { grid-template-columns: 1fr 1fr; }
#base-texto { min-height: 65vh; font-family: Consolas, "Cascadia Mono", monospace; font-size: 13.5px; line-height: 1.5; resize: vertical; }
.preview { background: #fff; border: 1px solid var(--linha); border-radius: 10px; padding: 14px 18px; max-height: 65vh; overflow: auto; }
.md h1, .md h2, .md h3 { margin: 14px 0 6px; }

/* listas */
.lista { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.item { background: #fff; border: 1px solid var(--linha); border-radius: 12px; padding: 12px 14px; }
.item.inativo { opacity: .6; }
.item p { margin: 6px 0; color: var(--tinta2); }
.item textarea { width: 100%; margin: 8px 0 0; }
.item-top, .item-rodape { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.item-rodape { margin-top: 8px; }
.tag { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: #eef2f7; color: var(--tinta2); white-space: nowrap; }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.erro { background: var(--erro-bg); color: var(--erro); }
.tag.alerta { background: var(--alerta-bg); color: var(--alerta); }

/* chat */
.chat { display: flex; flex-direction: column; height: 65vh; padding: 0; overflow: hidden; }
.chat-msgs { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 8px; background: #efeae2; }
.chat-form { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--linha); background: #fff; }
.chat-form input { flex: 1; }
.bolha { max-width: 78%; padding: 8px 12px; border-radius: 12px; line-height: 1.45; white-space: normal; word-wrap: break-word; }
.bolha.eu { align-self: flex-end; background: #d9fdd3; }
.bolha.bot { align-self: flex-start; background: #fff; }
.bolha.humano { background: #fff4e0; }
.bolha .meta { font-size: 11px; color: var(--tinta2); margin-top: 4px; }
.conv-msgs { max-height: 60vh; border-radius: 10px; margin-top: 10px; }
.conv-msgs .meta { margin: 0 0 3px; }
.conv-lista { max-height: 70vh; overflow-y: auto; margin-top: 14px; }
.conv { text-align: left; font: inherit; background: #fff; border: 1px solid var(--linha); border-radius: 12px; padding: 10px 12px; cursor: pointer; display: flex; flex-direction: column; gap: 2px; }
.conv:hover { border-color: var(--marca-borda); }
.trunc { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--tinta2); font-size: 13px; }

/* toast / alertas */
.toast { position: fixed; bottom: 22px; right: 22px; background: var(--tinta); color: #fff; padding: 12px 16px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.2); max-width: 360px; z-index: 10; }
.toast.erro { background: var(--erro); }
.alert { padding: 10px 12px; border-radius: 10px; font-size: 14px; }
.alert.erro { background: var(--erro-bg); color: var(--erro); }

/* login */
.login-body { display: grid; place-items: center; min-height: 100vh; background: radial-gradient(circle at 20% 10%, #3b4675, transparent 55%), linear-gradient(160deg, var(--marinho), var(--marinho-esc)); }
.login-card { border-top: 5px solid var(--marca); }
.login-card { background: #fff; border-radius: 18px; padding: 28px; width: min(380px, calc(100% - 32px)); display: flex; flex-direction: column; gap: 6px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.login-logo { width: 190px; margin: 0 auto 6px; display: block; }
.login-titulo { text-align: center; color: var(--marinho-txt); font-size: 14px; margin: 0 0 8px; }
.login-card .btn { justify-content: center; margin-top: 8px; padding: 11px; }

/* celular */
@media (max-width: 820px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .side { position: static; height: auto; padding: 12px; gap: 10px; }
  nav { flex-direction: row; overflow-x: auto; }
  nav a { white-space: nowrap; padding: 8px 10px; }
  .sair { display: none; }
  main { padding: 16px; }
  .grid2, .grid-conv, .editor:has(.preview:not([hidden])) { grid-template-columns: 1fr; }
  .bolha { max-width: 90%; }
}