body { 
    padding: 0; 
    margin: 0; 
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #231F20;
    overflow: hidden;
  }
  
  #unity-container { 
    position: fixed; 
    width: 100%; 
    height: 100%; 
  }
  
  #unity-canvas { 
    width: 100%; 
    height: 100%; 
    background: #231F20 
  }
  
  #unity-loading-bar { 
    position: absolute; 
    left: 50%; 
    top: 50%; 
    transform: translate(-50%, -50%); 
    display: none 
  }
  
  #unity-logo { 
    width: 154px; 
    height: 130px; 
    background: url('unity-logo-dark.png') no-repeat center 
  }
  
  #unity-progress-bar-empty { 
    margin-left: auto; 
    margin-right: auto; 
    width: 141px; 
    height: 18px; 
    margin-top: 10px; 
    background: url('progress-bar-empty-dark.png') no-repeat center 
  }
  
  #unity-progress-bar-full { 
    width: 0%; 
    height: 18px; 
    margin-top: 10px; 
    background: url('progress-bar-full-dark.png') no-repeat center 
  }
  
  #unity-warning { 
    position: absolute; 
    left: 50%; 
    top: 5%; 
    transform: translate(-50%); 
    background: white; 
    padding: 10px; 
    display: none 
  }
  
  /* Beautiful Loading Screen */
  #loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
  }
  
  .loading-container {
    text-align: center;
    max-width: 400px;
    padding: 20px;
  }
  
  /* Game Logo */
  .game-logo {
    margin-bottom: 40px;
  }
  
  .soccer-ball {
    font-size: 80px;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
  }
  
  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-20px);
    }
    60% {
      transform: translateY(-10px);
    }
  }
  
  .game-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 10px 0;
    text-shadow: 0 4px 8px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #4CAF50, #8BC34A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .game-subtitle {
    font-size: 1.1rem;
    color: #cccccc;
    margin: 0;
    font-weight: 300;
    letter-spacing: 1px;
  }
  
  /* Loading Progress */
  .loading-progress {
    margin-bottom: 40px;
  }
  
  .progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
  }
  
  .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #8BC34A);
    border-radius: 4px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
    width: 0%;
  }
  
  .progress-text {
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  }
  
  /* Loading Tips */
  .loading-tips {
    position: relative;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .tip {
    position: absolute;
    color: #cccccc;
    font-size: 0.9rem;
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease;
    padding: 10px 20px;
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    max-width: 300px;
  }
  
  /* Mobile Optimizations */
  @media (max-width: 768px) {
    .game-title {
      font-size: 2rem;
    }
    
    .game-subtitle {
      font-size: 1rem;
    }
    
    .soccer-ball {
      font-size: 60px;
    }
    
    .loading-container {
      padding: 15px;
    }
    
    .tip {
      font-size: 0.8rem;
      padding: 8px 16px;
    }
  }