body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f9f9f9;
  text-align: center;
}

.barra-superior {
  background-color: #0033a0;
  color: white;
  padding: 20px 30px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.1);
}

.contenedor-barra {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  margin: auto;
}

.logo img {
  height: 50px;
}

.nav-barra a {
  color: white;
  text-decoration: none;
  margin-left: 20px;
  font-size: 16px;
  font-weight: bold;
}

.container {
  margin: 80px auto;
  padding: 30px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  max-width: 400px;
}

button {
  padding: 12px 20px;
  margin: 15px;
  background-color: #0033a0;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  width: 80%;
}

button:hover {
  background-color: #001f66;
}