body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f5f5;
}

header {
  background: #222;
  color: white;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav button {
  margin-left: 10px;
}

main {
  padding: 20px;
}

section {
  max-width: 400px;
  background: white;
  padding: 20px;
  border-radius: 6px;
}

input {
  width: 100%;
  margin-bottom: 10px;
  padding: 8px;
}

button {
  padding: 8px 12px;
  cursor: pointer;
}

.hidden {
  display: none;
}

body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  padding: 20px;
}

header {
  background: #222;
  color: white;
  padding: 10px;
}

section {
  background: white;
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 6px;
}

input {
  display: block;
  margin: 5px 0;
  padding: 8px;
  width: 250px;
}

button {
  padding: 8px 12px;
  cursor: pointer;
}

pre {
  background: #111;
  color: #0f0;
  padding: 10px;
  max-height: 300px;
  overflow: auto;
}
.estado {
  margin: 10px 0;
  font-weight: bold;
}

.estado.conectado {
  color: green;
}

.estado.desconectado {
  color: red;
}