:root {
  --bg: #0f0f33;
  --fg: #0ff;
  --text: #0ff;
  --highlight: #fff;
}

body {
  margin: 0;
  background: radial-gradient(ellipse at center, var(--bg) 0%, #000011 100%);
  color: var(--text);
  font-family: Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1em;
}

.player {
  background: rgba(0, 255, 255, 0.05);
  border: 2px solid var(--fg);
  padding: 2em;
  border-radius: 16px;
  box-shadow: 0 0 30px #0ff5;
  text-align: center;
  max-width: 450px;
  width: 100%;
}

.logo {
  width: 60px;
  animation: pulseGlow 3s infinite ease-in-out;
  filter: drop-shadow(0 0 10px var(--fg));
}

.album-art {
  width: 150px;
  margin-bottom: 1em;
  border-radius: 1em;
}

@keyframes pulseGlow {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

.track-name {
  font-size: 1.1em;
  margin-bottom: 0.5em;
  line-height: 1.5em;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5em;
  margin-top: 1em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 2px solid var(--fg);
  color: var(--fg);
  padding: 10px;
  border-radius: 24px;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--fg);
  color: #000;
}

#shuffleBtn svg {
  transition: stroke 0.2s ease;
}

#shuffleBtn.active svg {
  stroke: #1db954;
  /* Spotify green or any accent color */
}

.progress-container {
  margin-top: 1em;
  background: #0ff2;
  border: 1px solid var(--fg);
  height: 8px;
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: var(--fg);
  width: 0%;
  border-radius: 0;
}

.playlist {
  margin-top: 1em;
  text-align: left;
  max-height: 120px;
  overflow-y: auto;
  border-top: 1px solid #0ff4;
  padding-top: 1em;
}

.track {
  padding: 4px 6px;
  cursor: pointer;
  border-left: 3px solid transparent;
  line-height: 1.5em;
}

.track.active {
  color: var(--highlight);
  border-left-color: var(--fg);
  font-weight: bold;
  text-shadow: 0 0 5px var(--fg);
}

canvas {
  display: block;
  width: 100%;
  height: 40px;
  margin-top: 1em;
}

@media (max-width: 480px) {
  .player {
    padding: 1.2em;
  }

  /* .btn {
        font-size: 0.9em;
        padding: 0.2em 0.8em;
      } */

  .logo {
    width: 60px;
  }

  .track-name {
    font-size: 1em;
  }

  .track {
    font-size: 0.9em;
  }
}