body {
  font-family: Arial, sans-serif;
  background: #f3f3f3;
  margin: 0;
}

header {
  background: #000;
  color: #fff;
  padding: 20px;
  text-align: center;
}

.produtos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  padding: 20px;
}

.produto {
  background: #fff;
  border-radius: 8px;
  padding: 15px;
  text-align: center;
}

.produto img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.preco {
  font-size: 20px;
  color: #1a7f37;
  font-weight: bold;
}

button {
  background: #000;
  color: #fff;
  padding: 10px;
  border: none;
  width: 100%;
  cursor: pointer;
}

footer {
  background: #111;
  color: #aaa;
  text-align: center;
  padding: 15px;
  font-size: 12px;
}

.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 55px;
  height: 55px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  z-index: 999;
}

.whatsapp-float img {
  width: 32px;
  height: 32px;
}