:root {
  --bg: #f6f6f4;
  --surface: #ffffff;
  --surface-2: #f0efeb;
  --border: rgba(20, 20, 18, 0.1);
  --text: #1b1b19;
  --text-2: #5f5e5a;
  --text-3: #8a8983;
  --ok-bg: #e5f2df;
  --ok: #2f6a12;
  --bad-bg: #fbe7e6;
  --bad: #a32d2d;
  --cpu: #1d9e75;
  --mem: #6a62d3;
  --track: rgba(20, 20, 18, 0.08);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413;
    --surface: #1d1d1b;
    --surface-2: #262624;
    --border: rgba(255, 255, 255, 0.09);
    --text: #f1f0eb;
    --text-2: #b4b2a9;
    --text-3: #85847e;
    --ok-bg: #1f3312;
    --ok: #a6d66f;
    --bad-bg: #3d1616;
    --bad: #f3a0a0;
    --cpu: #4fc59c;
    --mem: #9c95ec;
    --track: rgba(255, 255, 255, 0.08);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

/* ---- layout */
.app { display: grid; grid-template-columns: 220px minmax(0, 1fr); min-height: 100vh; }
.menu {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.marca { font-weight: 600; font-size: 15px; padding: 2px 10px 16px; display: flex; gap: 8px; align-items: center; }
.secao { font-size: 11px; color: var(--text-3); padding: 14px 10px 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.item {
  display: flex; gap: 10px; align-items: center;
  padding: 8px 10px; border-radius: 8px; color: var(--text-2);
}
.item:hover { background: var(--surface-2); color: var(--text); }
.item.ativo { background: var(--surface-2); color: var(--text); font-weight: 500; }
.item .fora { margin-left: auto; opacity: 0.5; }
.item svg { width: 18px; height: 18px; flex: none; }
.sair { margin-top: auto; background: none; border: 0; cursor: pointer; text-align: left; width: 100%; }

.conteudo { padding: 24px 28px; display: flex; flex-direction: column; gap: 18px; max-width: 1100px; }
.topo { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.topo h1 { font-size: 20px; font-weight: 600; margin: 0; }
.sub { color: var(--text-2); font-size: 13px; }

.selo { display: inline-flex; gap: 6px; align-items: center; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.selo.ok { background: var(--ok-bg); color: var(--ok); }
.selo.ruim { background: var(--bad-bg); color: var(--bad); }

/* ---- cartões */
.grade { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.grade.dois { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.cartao { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.rotulo { color: var(--text-2); font-size: 12px; margin: 0; }
.numero { font-size: 24px; font-weight: 600; margin: 2px 0 0; font-variant-numeric: tabular-nums; }
.numero small { font-size: 13px; font-weight: 400; color: var(--text-2); }
.barra { height: 6px; border-radius: 3px; background: var(--track); margin-top: 10px; overflow: hidden; }
.barra div { height: 100%; border-radius: 3px; background: var(--cpu); transition: width 0.4s; }
.detalhe { color: var(--text-3); font-size: 12px; margin-top: 6px; }

/* ---- gráficos */
.grafico { position: relative; margin-top: 8px; }
.grafico svg { display: block; width: 100%; height: 120px; overflow: visible; }
.grafico .eixo { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); margin-top: 4px; }
.dica {
  position: absolute; top: -6px; pointer-events: none; transform: translateX(-50%);
  background: var(--text); color: var(--bg); font-size: 12px; padding: 3px 8px; border-radius: 6px; white-space: nowrap;
  display: none;
}
.periodos { display: flex; gap: 4px; }
.periodos button {
  border: 1px solid var(--border); background: var(--surface); border-radius: 8px; padding: 4px 10px; cursor: pointer; font-size: 12px;
}
.periodos button.ativo { background: var(--text); color: var(--bg); border-color: var(--text); }

/* ---- tabela de containers */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 500; color: var(--text-3); font-size: 12px; padding: 0 8px 8px; }
td { padding: 9px 8px; border-top: 1px solid var(--border); font-variant-numeric: tabular-nums; }
td.nome { font-weight: 500; }
td .img { display: block; font-weight: 400; color: var(--text-3); font-size: 12px; }
.num { text-align: right; }

/* ---- login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login form { width: 100%; max-width: 340px; display: flex; flex-direction: column; gap: 12px; }
.login h1 { font-size: 20px; margin: 0 0 4px; }
.login input {
  font: inherit; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
.login button[type="submit"] {
  padding: 10px; border-radius: 8px; border: 0; background: var(--text); color: var(--bg); font-weight: 600; cursor: pointer;
}
.erro { color: var(--bad); font-size: 13px; min-height: 1.2em; margin: 0; }

/* ---- celular */
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .menu { flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); padding: 10px 16px; }
  .secao, .marca { display: none; }
  .sair { margin: 0; width: auto; }
  .conteudo { padding: 16px; }
  .esconde-celular { display: none; }
}

/* ---- formulários (conta e usuários) */
.formulario { display: flex; flex-direction: column; gap: 12px; max-width: 460px; }
.formulario .titulo { font-size: 13px; color: var(--text); font-weight: 500; }
.formulario label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--text-2); }
.formulario label.marcar { flex-direction: row; align-items: center; gap: 8px; }
.formulario input:not([type="checkbox"]) {
  font: inherit; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text);
}
.botao {
  padding: 8px 14px; border-radius: 8px; border: 0; background: var(--text); color: var(--bg);
  font-weight: 600; cursor: pointer;
}
.botao.leve { background: none; color: var(--text-2); border: 1px solid var(--border); font-weight: 500; padding: 5px 10px; font-size: 12px; }
.botao.leve.perigo { color: var(--bad); }
.aviso { margin: 0; font-size: 13px; min-height: 1.2em; }
.aviso.ok { color: var(--ok); }
.aviso.ruim { color: var(--bad); }
td.acoes { text-align: right; white-space: nowrap; }
td.acoes .botao + .botao { margin-left: 6px; }

[hidden] { display: none !important; }

/* ---- central */
.titulo-cartao { font-size: 13px; color: var(--text); font-weight: 500; margin-bottom: 10px; }
.lista { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: 13px; }
.lista dt { color: var(--text-2); }
.lista dd { margin: 0; font-variant-numeric: tabular-nums; }
.linhas { list-style: none; margin: 4px 0 0; padding: 0; font-size: 13px; }
.linhas li { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-top: 1px solid var(--border); }
.linhas li:first-child { border-top: 0; }
.linhas .sub { font-size: 12px; }
.ponto { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--text-3); }
.ponto.on { background: var(--ok); }
.ponto.off { background: var(--bad); }
.numeros { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 10px 0; }
.numeros div { background: var(--surface-2); border-radius: 8px; padding: 8px 10px; }
.numeros b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
.numeros span { font-size: 11px; color: var(--text-2); }