body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0a0f1c;
  color: white;
}

header {
  background: #0f172a;
  padding: 20px;
  text-align: center;
  border-bottom: 2px solid #2563eb;
}

h1 {
  color: #3b82f6;
}

#ofertas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  padding: 20px;
  gap: 20px;
}

.card {
  background: #111827;
  border-radius: 12px;
  overflow: hidden;
  transition: 0.3s;
}

.card:hover {
  transform: scale(1.05);
}

.card img {
  width: 100%;
}

.card-content {
  padding: 15px;
}

.preco {
  color: #22c55e;
  font-size: 18px;
}

.btn {
  display: block;
  background: #2563eb;
  color: white;
  padding: 10px;
  text-align: center;
  margin-top: 10px;
  text-decoration: none;
  border-radius: 8px;
}