body {
  font-family: Arial, sans-serif;
  background: #f3f3f3;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 600px;
  background: white;
  margin: auto;
  padding: 20px;
  box-shadow: 0 0 10px #ccc;
  border-radius: 8px;
}

.logo {
  max-width: 150px;
  display: block;
  margin: 0 auto 10px;
}

form label {
  display: block;
  margin-top: 15px;
}

form input, form textarea, form select {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
}

button {
  margin-top: 20px;
  padding: 10px 20px;
  background: #00b894;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}

button:hover {
  background: #019875;
}

.recibo {
  background: #fff;
  padding: 20px;
  margin-top: 20px;
  border: 1px solid #ccc;
}

.hidden {
  display: none;
}