:root {
  --cor-primaria: #18181b;
  --cor-fundo: #f4f4f5;
  --cor-cartao: #ffffff;
  --cor-borda: #e4e4e7;
  --cor-texto: #18181b;
  --cor-texto-suave: #71717a;
  --cor-ok: #16a34a;
  --cor-ok-tint: #dcfce7;
  --cor-falha: #dc2626;
  --cor-falha-tint: #fee2e2;
  --cor-alerta: #ea580c;
  --cor-alerta-tint: #ffedd5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--cor-fundo);
  color: var(--cor-texto);
}

header {
  background: var(--cor-primaria);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 { font-size: 18px; margin: 0; }
.marca { display: flex; align-items: center; gap: 8px; }
header nav a { color: #fff; text-decoration: none; margin-left: 16px; font-size: 14px; opacity: 0.85; }
header nav a:hover { opacity: 1; }

.sino-container { position: relative; }
.botao-sino {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  line-height: 1;
  color: #fff;
}
.badge-sino {
  position: absolute;
  top: -4px;
  right: -6px;
  background: var(--cor-falha);
  color: #fff;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  line-height: 1;
}
.painel-alertas {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 360px;
  max-height: 420px;
  overflow-y: auto;
  background: var(--cor-cartao);
  color: var(--cor-texto);
  border: 1px solid var(--cor-borda);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  z-index: 20;
  padding: 8px 0;
}
.painel-alertas-titulo {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cor-texto-suave);
  padding: 6px 16px 10px;
  border-bottom: 1px solid var(--cor-borda);
  margin-bottom: 4px;
}
.painel-alertas .alerta {
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--cor-borda);
  margin-bottom: 0;
  font-size: 13px;
}
.painel-alertas .alerta:last-child { border-bottom: none; }
.painel-alertas .vazio { padding: 16px; font-size: 13px; }

main { max-width: 1100px; margin: 0 auto; padding: 24px; }

h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--cor-texto-suave); margin: 28px 0 12px; }

.alertas { margin-bottom: 8px; }
.alerta {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 8px;
  font-size: 14px;
  background: var(--cor-alerta-tint);
  color: #9a3412;
  border: 1px solid #fed7aa;
}

.grade { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }

.cartao {
  background: var(--cor-cartao);
  border: 1px solid var(--cor-borda);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.cartao-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s, transform 0.15s;
}
.cartao-link:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transform: translateY(-1px);
}

.cartao-topo { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.cartao-nome { font-weight: 600; font-size: 15px; }
.cartao-valor { color: var(--cor-texto-suave); font-size: 12px; margin-top: 2px; }

.icone-alvo {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--cor-fundo);
  color: var(--cor-texto-suave);
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-ok { background: var(--cor-ok-tint); color: #166534; }
.badge-falha { background: var(--cor-falha-tint); color: #991b1b; }
.badge-inativo { background: #f1f1f2; color: #71717a; }
.badge-alerta { background: var(--cor-alerta-tint); color: #9a3412; }

.bolinha { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

.cartao-metricas { margin-top: 12px; font-size: 13px; color: var(--cor-texto-suave); display: flex; gap: 16px; flex-wrap: wrap; }
.cartao-metricas strong { color: var(--cor-texto); }

.vazio { color: var(--cor-texto-suave); font-size: 14px; padding: 12px 0; }

table { width: 100%; border-collapse: collapse; background: var(--cor-cartao); border-radius: 12px; overflow: hidden; border: 1px solid var(--cor-borda); }
th, td { text-align: left; padding: 10px 12px; font-size: 14px; border-bottom: 1px solid var(--cor-borda); }
th { background: #fafafa; color: var(--cor-texto-suave); font-weight: 600; font-size: 12px; text-transform: uppercase; }
tr:last-child td { border-bottom: none; }

button, .botao {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--cor-borda);
  background: #fff;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  margin-right: 6px;
}
button.primario { background: var(--cor-primaria); color: #fff; border-color: var(--cor-primaria); }
button.perigo { color: var(--cor-falha); border-color: #fecaca; }

form.form-alvo { background: var(--cor-cartao); border: 1px solid var(--cor-borda); border-radius: 12px; padding: 16px; margin-bottom: 20px; display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
form.form-alvo label { display: block; font-size: 12px; color: var(--cor-texto-suave); margin-bottom: 4px; }
form.form-alvo input, form.form-alvo select {
  padding: 8px 10px;
  border: 1px solid var(--cor-borda);
  border-radius: 8px;
  font-size: 14px;
}

.rodape-nota { color: var(--cor-texto-suave); font-size: 12px; margin-top: 24px; }

.seletor-grupo {
  display: inline-flex;
  background: var(--cor-fundo);
  border: 1px solid var(--cor-borda);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.seletor-item {
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--cor-texto-suave);
  cursor: pointer;
  user-select: none;
}
.seletor-item:hover { color: var(--cor-texto); }
.seletor-item.ativo {
  background: var(--cor-cartao);
  color: var(--cor-texto);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}