body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #7a7a7a;
}

.encabezado {
    background-color: #0b3d2e;
    color: #fff;
    padding: 20px;
    text-align: center;
}

.contenedor-principal {
  background-color: #f0f0f0;
  width: 80%;
  max-width: 500px;
  margin: 50px auto;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  text-align: center;
}

.formulario {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
}

.formulario label {
  font-weight: bold;
  font-size: 1.1em;
}

.formulario input,
.formulario button {
  width: 100%;
  box-sizing: border-box;
  font-size: 16px;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.formulario button {
  background-color: #0b3d2e;
  color: white;
  border: none;
  cursor: pointer;
}

.formulario button:hover {
  background-color: #145e46;
}

@media (max-width: 600px) {
  .contenedor-principal {
    width: 95%;
    padding: 20px;
    box-shadow: none;
  }
}