* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f4f6f8;
  color: #1a1a1a;
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}

.cartao {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  align-self: flex-start;
}

.cartao.largo { max-width: 640px; }

h1 { font-size: 22px; margin-bottom: 4px; }
p.subtitulo { color: #666; margin-top: 0; margin-bottom: 24px; font-size: 14px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  margin-top: 16px;
  color: #333;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #dcdfe3;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}

textarea { resize: vertical; min-height: 80px; }

button {
  margin-top: 20px;
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: #25D366;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: #1ebe5b; }
button.secundario { background: #eef0f2; color: #333; }
button.secundario:hover { background: #e2e5e9; }

.erro {
  background: #fdecea;
  color: #c0392b;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-top: 16px;
  display: none;
}

.link-rodape { text-align: center; margin-top: 20px; font-size: 13px; color: #666; }
.link-rodape a { color: #25D366; text-decoration: none; font-weight: 600; }

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.status-badge.conectado { background: #e6f7ec; color: #1ebe5b; }
.status-badge.desconectado { background: #fdecea; color: #c0392b; }

.qr-box { text-align: center; margin: 20px 0; }
.qr-box img { width: 220px; height: 220px; }

table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 13px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid #eee; }

.secao { margin-top: 32px; padding-top: 24px; border-top: 1px solid #eee; }