body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(180deg, #121212, #000);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

/* APP */
.app {
  width: 100%;
  max-width: 350px;
  text-align: center;
}

/* LOGO */
.logo {
  width: 80px;
  margin-bottom: 10px;
  opacity: 0.8;
}

/* CAPA */
.cover-player {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.6);
  margin-bottom: 15px;
}

/* TÍTULO */
h1 {
  font-size: 22px;
  margin-bottom: 10px;
}

/* NOME MÚSICA */
#trackName {
  font-size: 16px;
  color: #aaa;
  margin-bottom: 20px;
}

/* CONTROLES */
.controls {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* BOTÕES */
.controls button {
  background: #1db954;
  border: none;
  color: white;
  font-size: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 5px 15px rgba(0,0,0,0.4);
}

.controls button:hover {
  transform: scale(1.1);
  background: #1ed760;
}

/* BOTÃO PLAY MAIOR */
#playBtn {
  width: 70px;
  height: 70px;
  font-size: 24px;
}

/* PROGRESSO */
#progress {
  width: 100%;
  margin-top: 20px;
  appearance: none;
  height: 6px;
  border-radius: 10px;
  background: #444;
  outline: none;
}

#progress::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #1db954;
  cursor: pointer;
}

/* MODAL */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999;
}

/* CAIXA */
.modal-content {
  background: #121212;
  padding: 30px;
  border-radius: 15px;
  width: 90%;
  max-width: 300px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.8);
}

/* INPUT */
.modal-content input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  margin-top: 15px;
  margin-bottom: 15px;
  outline: none;
}

/* BOTÃO PRINCIPAL */
.modal-content button {
  width: 100%;
  padding: 12px;
  border-radius: 30px;
  border: none;
  background: #1db954;
  color: white;
  font-weight: bold;
  cursor: pointer;
  margin-bottom: 10px;
}

/* BOTÃO SECUNDÁRIO */
.modal-content .secondary {
  background: transparent;
  border: 1px solid #555;
}

/* ADICIONAR NO FINAL */

.controls button:active {
  transform: scale(0.95);
}

#trackName {
  min-height: 20px;
}

/* ANIMAÇÃO SUAVE */
.cover-player {
  transition: transform 0.3s ease;
}

.cover-player:hover {
  transform: scale(1.03);
}

/* SCROLL MOBILE */
body {
  overflow: hidden;
}

#trackCounter {
  font-size: 13px;
  color: #666;
  margin-top: -10px;
  margin-bottom: 15px;
}4