body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
  padding: 20px;
}

.contenedor {
  background-color: white;
  max-width: 600px;
  margin: auto;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 5px gray;
}

h1 {
  text-align: center;
  font-size: 20px;
}

label {
  display: block;
  margin-top: 10px;
}

input {
  width: 100%;
  padding: 6px;
  margin-top: 4px;
  box-sizing: border-box;
}

button {
  margin-top: 15px;
  width: 100%;
  padding: 8px;
  background-color: #FF9800;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  border: 1px solid #ccc;
  padding: 6px;
  text-align: center;
}

th {
  background-color: #eee;
}

.btn-eliminar {
  background-color: #f44336;
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
  width: auto;
  margin-top: 0;
}

#totales {
  margin-top: 15px;
  font-weight: bold;
}

.error {
  color: red;
  margin-top: 10px;
}