* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  margin: 0;
  height: 100vh;
}
main {
  height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* FIX: largura fixa (300px) mas flexível até 90% da tela */
#card {
  margin-top: 50px;
  width: 340px;
  max-width: 90%;
  min-height: 77vh;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  background-color: #E8F1F2;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 5px 10px 20px 0px #33333370;
}

/* Ajustes de texto para quebrar linha e centralizar */
#title {
  width: 100%;
  font-size: .75em;
  margin-bottom: 20px;
  color: rgb(42, 50, 80);
  font-style: italic;
  font-weight: 900;
  text-align: center;
  word-wrap: break-word;
}

#card > div {
  font-family: Arial, Helvetica, sans-serif;
  margin: 5px;
}

#midias img,
#img {
  box-shadow: 5px 10px 20px 0px #33333370;
  width: 180px;
  height: 180px;
  border-radius: 50%;
}

#names {
  width: 100%;
  font-size: .85rem;
  font-style: italic;
  text-align: left;
}
#names > #track-artist {
  font-weight: bold;
}

.btns {
  display: flex;
  cursor: pointer;
}
.btns .btn2 {
  width: 65px;
}
.btns .btn1 {
  width: 40px;
}
.btns:hover {
  transform: scale(1.08);
  transition: .3s;
}

.timer {
  display: flex;
  justify-content: space-between;
  font-family: 'Roboto', sans-serif;
  font-size: .80rem;
}

#progress {
  width: 250px;
  cursor: pointer;
  margin-top: 8px;
}

/* Footer e responsivos */
footer {
  display: flex;
  justify-content: center;
  font-size: .9rem;
}
footer > p {
  font-family: "Montserrat", sans-serif;
  display: flex;
  font-style: italic;
  justify-content: center;
  align-items: center;
  font-weight: 400;
}
footer > p > a {
  font-weight: 700;
  margin-left: 4px;
  color: #000;
}
footer > p > a:hover {
  color: rgb(70, 70, 70);
}
footer > img {
  width: 27px;
  margin-left: 4px;
}

@media (max-width: 1050px) {
  /* ... seus outros @media queries ... */
}