:root {
  --primary-color: #1db954;
  --secondary-color: #191414;
  --background-color: #121212;
  --surface-color: #1e1e1e;
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --border-color: #333;
  --hover-color: #282828;
}

.light-theme {
  --primary-color: #1db954;
  --secondary-color: #f5f5f5;
  --background-color: #ffffff;
  --surface-color: #f8f9fa;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --border-color: #dee2e6;
  --hover-color: #e9ecef;
}


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

body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.nav {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-tabs {
  display: flex;
  
  gap: 0;
}

.nav-tab {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 15px 20px;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
  font-size: 19px;
  font-weight: 500;
}

.nav-tab:hover {
  color: var(--text-primary);
  background-color: var(--hover-color);
}

.nav-tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.section {
  display: none;
}

.section.active {
  display: block;
}


.volume-container {
  display: flex;
  align-items: center;       /* Vertically center icon + slider */
  justify-content: center;   /* Horizontally center the whole group */
  gap: 10px;                 /* Space between icon and slider */
  padding: 0.5rem 1rem;
  margin: 0 auto 1rem;
  max-width: 350px;
  width: 100%;
}

.volume-container label {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

#volumeIcon {
  fill: var(--text-secondary, #b3b3b3); 
  width: 24px;
  height: 24px;
}

#volumeSlider {
  flex-grow: 1;
  width: 100%;
  max-width: 240px;
  appearance: none;
  height: 4px;
  /* Updated background with gradient for two-color effect */
  background: linear-gradient(
    to right,
    var(--primary-color, #1db954) 0%,
    var(--primary-color, #1db954) var(--slider-progress, 100%),
    #666 var(--slider-progress, 100%),
    #666 100%
  );
  border-radius: 5px;
  outline: none;
  transition: background 0.3s ease;
}

/* Enhanced slider thumb with better styling */
#volumeSlider::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--text-color, #fff);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--primary-color, #1db954);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

#volumeSlider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--text-color, #fff);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--primary-color, #1db954);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

/* Remove default track styling for Firefox */
#volumeSlider::-moz-range-track {
  background: transparent;
}

/* Hover effects */
#volumeSlider:hover::-webkit-slider-thumb {
  transform: scale(1.15);
}

#volumeSlider:hover::-moz-range-thumb {
  transform: scale(1.15);
}





.now-playing {
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
  padding: 40px 20px;
}

.album-art-container {
  margin-bottom: 30px;
}

.album-art {
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, var(--primary-color), #1ed760);
  border-radius: 12px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.album-art-icon {
  font-size: 80px;
  opacity: 0.8;
}

.song-info {
  margin-bottom: 30px;
}

.song-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.song-artist {
  font-size: 16px;
  color: var(--text-secondary);
}

.progress-container {
  margin-bottom: 30px;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: 3px;
  cursor: pointer;
  margin-bottom: 10px;
}

.progress-fill {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  width: 0%;
  transition: width 0.1s ease;
}

.time-display {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.control-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-primary);
  transition: transform 0.2s ease;
}

.control-btn:hover {
  transform: scale(1.1);
}

.play-pause-btn {
  font-size: 40px;
  background-color: var(--primary-color);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

#visualizerCanvas {
  width: 100%;
  height: 100px;
  background-color: transparent;
  display: block;
  margin: 1rem 0;
}



.library, .search, .settings {
  max-width: 800px;
  margin: 0 auto;
}

.section-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 30px;
  color: var(--text-primary);
}

.song-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.song-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--surface-color);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.song-item:hover {
  background-color: var(--hover-color);
  transform: translateY(-1px);
}

.song-item.active {
  border-color: var(--primary-color);
  background-color: rgba(29, 185, 84, 0.1);
}

.song-icon {
  font-size: 20px;
  margin-right: 12px;
  color: var(--primary-color);
}

.song-details {
  flex: 1;
}

.song-name {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.song-artist-small {
  font-size: 14px;
  color: var(--text-secondary);
}

.search-container {
  margin-bottom: 30px;
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: 'Poppins', sans-serif;
  color: var(--text-primary);
  font-size: 16px;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.setting-item {
  background-color: var(--surface-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.setting-label {
  font-weight: 500;
  color: var(--text-primary);
}

.toggle-switch {
  width: 50px;
  height: 26px;
  background-color: var(--border-color);
  border-radius: 13px;
  cursor: pointer;
  position: relative;
  transition: background-color 0.3s ease;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background-color: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.3s ease;
}

.toggle-switch.active {
  background-color: var(--primary-color);
}

.toggle-switch.active::after {
  transform: translateX(24px);
}

.upload-section {
  margin-top: 20px;
}

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary-color);
  background-color: rgba(29, 185, 84, 0.05);
}

.upload-icon {
  font-size: 48px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.upload-text {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.upload-subtext {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.upload-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

.upload-btn:hover {
  background-color: #1ed760;
}

.file-input {
  display: none;
}

.uploaded-files {
  margin-top: 20px;
}

.uploaded-file {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background-color: var(--background-color);
  border-radius: 6px;
  margin-bottom: 8px;
}

.remove-file {
  background: none;
  border: none;
  color: #e22134;
  cursor: pointer;
  font-size: 18px;
  font-weight: bold;
}

.remove-file:hover {
  color: #ff4757;
}

@media (max-width: 768px) {
  .nav-tabs {
    overflow-x: auto;
  }
  
  .nav-tab {
    flex-shrink: 0;
    padding: 12px 16px;
    font-size: 0.8rem;
  }
  
  .container {
    padding: 15px;
  }
  
  .album-art {
    width: 200px;
    height: 200px;
  }
  
  .song-title {
    font-size: 20px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .controls {
    gap: 15px;
  }
  
  .control-btn {
    font-size: 20px;
  }
  
  .play-pause-btn {
    font-size: 32px;
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 480px) {
  .nav-tab span {
    display: none;
  }

  .nav-tab {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
  }

  .nav-tabs {
    gap: 2rem;
  }
  .nav-tab svg {
    width: 24px;
    height: 24px;
  }
}