h1 {
  animation: pulsar 1s infinite;
  font-size: 28px;
}

@keyframes pulsar {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #d8393f, #c76e56);
  color: white;
  text-align: center;
}

.container {
  background: rgba(0,0,0,0.2);
  padding: 30px;
  margin: 20px;
  border-radius: 20px;
}

button {
  padding: 10px 20px;
  border: none;
  border-radius: 10px;
  background: white;
  color: #ff4d6d;
  font-size: 16px;
  cursor: pointer;  
  font-variant: small-caps;
}

/* banner */
.imagem_topo img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

/* player */
.musica {
  position: absolute;
  top: 10px;
  right: 10px;
}

.hidden {
  display: none;
}

/* 📱 RESPONSIVIDADE (celular) */
@media (max-width: 600px) {

  h1 {
    font-size: 20px;
  }

  .imagem_topo img {
    height: 180px;
  }

  .container {
    padding: 15px;
    margin: 10px;
  }

  button {
    width: 100%;
    font-size: 14px;
  }

  .musica {
    position: static;
    text-align: center;
    margin: 10px;
  }

}