* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #0f172a;
  color: #0f172a;
}
.cabecalho {
  background: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #e2e8f0;
}
.cabecalho h1 { font-size: 18px; margin: 0; }
.cabecalho .sub { color: #64748b; font-size: 13px; }
.conteudo { padding: 20px; max-width: 1400px; margin: 0 auto; }
.tela-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0f172a;
}
.cartao-login {
  background: #fff;
  padding: 32px;
  border-radius: 12px;
  width: 340px;
}
.cartao-login h2 { margin-top: 0; }
input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 10px;
}
label { font-size: 12px; color: #475569; font-weight: 600; display: block; margin-bottom: 2px; }
button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  background: #2563eb;
  color: #fff;
}
button.secundario { background: #64748b; }
button.perigo { background: #dc2626; }
button.sucesso { background: #16a34a; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.abas { display: flex; gap: 8px; margin-bottom: 16px; }
.abas button { background: #e2e8f0; color: #0f172a; }
.abas button.ativa { background: #2563eb; color: #fff; }
.painel {
  background: #fff;
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 16px;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #f1f5f9; }
th { color: #64748b; font-weight: 600; }
.selo {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.selo-ativa { background: #dcfce7; color: #166534; }
.selo-proxima_vencimento { background: #fef9c3; color: #854d0e; }
.selo-vencida_tolerancia { background: #fef9c3; color: #854d0e; }
.selo-vencida { background: #fee2e2; color: #991b1b; }
.selo-bloqueada { background: #fee2e2; color: #991b1b; }
.selo-cancelada { background: #e2e8f0; color: #475569; }
.selo-aguardando { background: #dbeafe; color: #1e3a8a; }
.sub { color: #64748b; font-size: 13px; }
.erro { color: #dc2626; font-size: 13px; margin: 8px 0; }
.ok { color: #16a34a; font-size: 13px; margin: 8px 0; }
.grade-form { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.codigo-ativacao {
  font-family: monospace;
  font-size: 15px;
  background: #f1f5f9;
  padding: 6px 10px;
  border-radius: 6px;
  display: inline-block;
}