body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #004d40;
  color: white;
  padding: 10px 0;
  text-align: center;
}
.logo-titulo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.logo {
  width: 80px;
}
.banner {
  width: 100%;
  max-height: 250px;
  object-fit: cover;
}
nav {
  margin-top: 10px;
}
nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}
nav a.active {
  text-decoration: underline;
}
main {
  padding: 20px;
  max-width: 1000px;
  margin: auto;
}
.center-content {
  text-align: center;
  padding: 40px 20px;
}
footer {
  text-align: center;
  padding: 15px;
  background: #eee;
  margin-top: 40px;
}
button {
  background: #00796b;
  color: white;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  font-size: 16px;
}
button:hover {
  background: #004d40;
}
@media (max-width: 768px) {
  .logo-titulo {
    flex-direction: column;
  }
}