body { font-family: 'Roboto', sans-serif; }

/* Grid flexível */
#catalogo {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 0 20px;
  margin-top: 40px;   /* margem superior */
  margin-bottom: 40px; /* margem inferior */

}


#catalogoLivraria {
  margin-top: 40px;
  margin-bottom: 40px;
}

#catalogo,
#catalogoLivraria {
  margin-top: clamp(20px, 5vw, 60px);
  margin-bottom: clamp(20px, 5vw, 60px);
}


.produto-card {
  flex: 0 0 calc(25% - 20px);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

@media (max-width: 992px) {
  .produto-card { flex: 0 0 calc(50% - 20px); }
}
@media (max-width: 600px) {
  .produto-card { flex: 0 0 100%; }
}

.produto-card img {
  width: 100%;
  height: auto;
  display: block;
}

.produto-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.titulo {
  text-align: center;
  font-size: 1.3em;
  font-weight: bold;
  margin-top: 10px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preco {
   text-align: center;
  font-weight: bold;
  margin: 8px 0;
  color: #2e7d32;
  font-size: clamp(1rem, 2vw, 1.3rem);

}

.botao-comprar {
  margin-top: auto;
}


.botao-livraria {
  background-color: #1565c0; /* azul elegante */
  color: #94b0ed;            /* texto branco para contraste */
  font-weight: bold;
  text-align: center;
  padding: 16px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  font-size: clamp(1rem, 2.5vw, 1.4rem);
}


.botao-livraria:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}