* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Montserrat", sans-serif;
  font-size: 1.2rem;
  background-image: linear-gradient(
    to bottom,
    hsl(141deg 75% 15%),
    hsl(141deg 75% 5%)
  );
  min-height: 100vh;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  color: #ffffff;
  text-align: center;
}

.container-aplicativo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: 90%;
  max-width: 400px;
}

h1 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: #dfffd8;
}

#capa {
  width: 80%;
  max-width: 280px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

#informacoes-faixa {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 1.5rem 0 1rem 0;
}

#capitulo {
  font-size: 1.4rem;
  font-weight: bold;
}

#nome-autor {
  font-size: 1rem;
  opacity: 0.85;
}

#container-botoes {
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 0.5rem;
}

/* Todos os botões */
button {
  background-color: transparent;
  color: inherit;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.2s ease;
}

/* Ícones SVG dentro dos botões */
button svg {
  width: 40px;
  height: 40px;
  fill: #ffffff;
}

/* Botão central maior (play/pause) */
#play-pause svg {
  width: 60px;
  height: 60px;
}

/* Efeitos visuais */
button:hover {
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.1);
}

button:focus {
  outline: 2px solid #5eff9b;
  outline-offset: 4px;
}

.pause {
  display: none;
}

.tocando .play {
  display: none;
}

.tocando .pause {
  display: block;
}

@media (max-width: 500px) {
  h1 {
    font-size: 1.3rem;
  }

  #capitulo {
    font-size: 1.2rem;
  }

  button svg {
    width: 35px;
    height: 35px;
  }

  #play-pause svg {
    width: 50px;
    height: 50px;
  }
}