/* Global Styles */
body {
    font-family: 'Arial', sans-serif;
    background-color: #121212;
    color: #fff;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0a, #1c1c1c);
    overflow-y:scroll ;
    transition: background-color 0.5s ease-in-out;
  }
  
  .hidden {
    display: none;
  }
  h1, h2, h3 {
    color: #1db954;
    text-transform: uppercase;
    font-weight: 600;
  }
  
  h1 {
    font-size: 3rem;
    letter-spacing: 2px;
    animation: fadeIn 1s ease-out;
  }
  
  h2 {
    font-size: 2rem;
    letter-spacing: 1px;
    margin-bottom: 20px;
  }
  
  h3 {
    font-size: 1.5rem;
    opacity: 0.85;
    margin-bottom: 10px;
    transition: opacity 0.3s ease;
  }
  
  h3:hover {
    opacity: 1;
  }
  
  /* Advanced Song Box Design */
  .song-box {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #212121, #2a2a2a);
    padding: 18px;
    border-radius: 18px;
    gap: 15px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.4s ease-in-out, background 0.4s ease;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
  }
  
  .song-box:hover {
    transform: translateY(-8px);
    background: linear-gradient(135deg, #1db954, #1db954);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.8);
  }
  
  
  .song-box div {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }
  
  .song-box h3 {
    font-size: 1.2rem;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    color: #fff;
    transition: color 0.3s ease;
  }
  
  .song-box p {
    font-size: 1rem;
    color: #b3b3b3;
    opacity: 0.8;
    transition: opacity 0.3s ease;
  }
  
  /* Advanced Music Player Design */
  .music-player {
    background: #212121;
    color: #fff;
    padding: 30px;
    border-radius: 25px;
    max-width: 460px;
    width: 100%;
    text-align: center;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7);
    transform: translateY(100px);
    animation: slideUp 0.6s ease-out forwards;
    transition: all 0.3s ease;
  }
  
  .music-player img {
    width: 160px;
    height: 160px;
    border-radius: 15px;
    margin-bottom: 20px;
    object-fit: cover;
    transition: transform 0.4s ease, box-shadow 0.3s ease;
  }
  
  .music-player img:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7);
  }
  
  /* Advanced Button Styles */
  .controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 25px 0;
    width: 100%;
    position: relative;
  }
  
  .controls img {
    background: linear-gradient(135deg, #1db954, #1a991f);
    border: none;
    color: white;
    font-size: 30px;
    padding: 12px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.4s ease, box-shadow 0.3s ease, transform 0.2s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.6);
    height: 30px;
    width: 30px;
  }
  
  .controls button:hover {
    background: linear-gradient(135deg, #fff, #1db954);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
  }
  
  .controls button:active {
    background: linear-gradient(135deg, #1db954, #1a991f);
    transform: scale(1);
  }
  
  input[type="range"] {
    width: 100%;
    margin: 12px 0;
    background: linear-gradient(135deg, #1db954, #1a991f);
    height: 10px;
    border-radius: 15px;
    outline: none;
    transition: background 0.3s ease;
  }
  
  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    background: #fff;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    transition: background 0.3s ease, transform 0.3s ease;
  }
  
  input[type="range"]:hover {
    background: linear-gradient(135deg, #1a991f, #1db954);
  }
  
  input[type="range"]::-webkit-slider-thumb:hover {
    background: #1db954;
    transform: scale(1.2);
  }
  
  input[type="range"]:active {
    background: linear-gradient(135deg, #1a991f, #1db954);
  }
  
  input[type="range"]::-webkit-slider-thumb:active {
    background: #1db954;
    transform: scale(1.2);
  }
  
  /* Back Button Styles */
  .back-btn {
    background: linear-gradient(135deg, #1db954, #1a991f);
    color: black;
    padding: 15px 30px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
  }
  
  .back-btn:hover {
    background: linear-gradient(135deg, #fff, #1db954);
    color: #1db954;
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
  }
  
  .back-btn:active {
    transform: scale(1);
  }
  
  /* Back Button (for specific element) */
  #back {
    background: linear-gradient(135deg, #1db954, #1a991f);
    color: black;
    padding: 15px 30px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5);
  }
  
  #back:hover {
    background: linear-gradient(135deg, #fff, #1db954);
    color: #1db954;
    transform: scale(1.1);
  }
  
  #back:active {
    transform: scale(1);
  }
  
  /* Animations */
  @keyframes fadeIn {
    0% {
      opacity: 0;
    }
    100% {
      opacity: 1;
    }
  }
  
  @keyframes slideUp {
    0% {
      transform: translateY(100px);
    }
    100% {
      transform: translateY(0);
    }
  }
  /* Music Library Folder Buttons */
.folders {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
  }
  
  .folder {
    display: inline-block;
    padding: 20px 40px;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #fff;
    background: linear-gradient(135deg, #1db954, #1a991f);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    position: relative;
    overflow: hidden;
  }
  
  .folder:hover {
    background: linear-gradient(135deg, #1a991f, #1db954);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
  }
  
  .folder:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 300%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    transform: skewX(-20deg);
    transition: left 0.4s ease;
  }
  
  .folder:hover:before {
    left: 100%;
  }
  
  .folder:active {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.7);
  }
  
  /* Responsive Adjustments */
  @media (max-width: 768px) {
    .folder {
      padding: 15px 30px;
      font-size: 1rem;
    }
  }
  .artist-list li {
    padding: 20px;
    background: linear-gradient(135deg, #1e1e1e, #2c2c2c);
    border: none;
    border-radius: 12px; /* More rounded corners for a card-like look */
    font-size: 1.5rem;
    color: #fff;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s, color 0.3s;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3); /* Adds depth to make it look like a card */
    position: relative;
    overflow: hidden;
  }
  
  .artist-list li:hover {
    background: #1db954; /* Spotify green on hover */
    color: #fff; /* Ensure text stays visible */
    transform: scale(1.08); /* Slight enlargement on hover */
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5); /* Enhanced hover shadow */
  }
  
  .artist-list li::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    transform: scale(0);
    opacity: 0;
    transition: transform 0.5s, opacity 0.5s;
  }
  
  .artist-list li:hover::before {
    transform: scale(2);
    opacity: 1;
  }
  
  .artist-list li span {
    font-weight: bold;
    font-size: 1.5rem;
    display: block;
  }
  
  .artist-list li small {
    font-size: 0.9rem;
    opacity: 0.8;
  }