body {
  background: #000;
  color: #fff;
  font-family: Arial, sans-serif;
  padding: 40px;
  margin: 0;
}

h1 {
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: 3px;
}

.hint {
  text-align: center;
  opacity: 0.6;
  margin-bottom: 30px;
}

.section {
  margin-top: 40px;
  padding: 20px;
  border: 1px solid #333;
  border-radius: 10px;
  background: #0a0a0a;
}

.section h2 {
  margin-top: 0;
  text-align: center;
  color: #7fc5ff;
  letter-spacing: 2px;
}

h3 {
  margin-top: 25px;
  color: #ffdd7f;
  letter-spacing: 1px;
}

.track {
  margin: 10px 0;
  padding: 12px;
  background: #111;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s;
  border: 1px solid #222;
  letter-spacing: 1px;
}

.track:hover {
  background: #1c1c1c;
  border-color: #444;
}

.now-playing {
  margin-top: 30px;
  text-align: center;
  font-size: 18px;
  opacity: 0.8;
  letter-spacing: 1px;
}

.back {
  text-align: center;
  margin-top: 20px;
  opacity: 0.7;
  cursor: pointer;
  transition: 0.2s;
}

.back:hover {
  opacity: 1;
  text-shadow: 0 0 10px #4fc3ff;
}

.audio-controls {
  margin-top: 20px;
  padding: 15px;
  background: rgba(10, 10, 10, 0.8);
  border: 1px solid #1f4d6b;
  border-radius: 10px;
  width: 100%;
  max-width: 600px;
  box-shadow: 0 0 12px rgba(0, 140, 255, 0.25);
}

.audio-btn {
  font-family: "Orbitron", Arial, sans-serif;
  font-size: 14px;
  letter-spacing: 2px;
  padding: 8px 14px;
  margin-right: 10px;
  background: rgba(20, 20, 20, 0.9);
  border: 1px solid #1f4d6b;
  color: #9fd8ff;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.25s ease;
}

.audio-btn:hover {
  border-color: #4db8ff;
  color: #c8ecff;
  box-shadow: 0 0 12px rgba(0, 170, 255, 0.45);
}

.progress-container {
  width: 100%;
  height: 10px;
  background: #111;
  border: 1px solid #1f4d6b;
  border-radius: 5px;
  margin-top: 15px;
  cursor: pointer;
  position: relative;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: #4db8ff;
  box-shadow: 0 0 10px rgba(0, 170, 255, 0.45);
  border-radius: 5px;
}

.time-display {
  margin-top: 10px;
  font-family: "Orbitron", Arial, sans-serif;
  font-size: 14px;
  letter-spacing: 2px;
  color: #7fc5ff;
}