/* Floating glassy container */
    .floating-button-holder {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 10px;
      border-radius: 16px;
      
      z-index: 1000;
    }
    
    .material-glass{
       background: rgba(13, 71, 161,0.77); /*#0D47A1; /*rgba(0,0,0, 0.7); / *rgba(63, 81, 181, 0.2); / * semi-transparent */
       backdrop-filter: blur(3px); /* frosted glass effect */
      -webkit-backdrop-filter: blur(1px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    }
    
    .material-glass:hover{
       background: rgba(255, 255, 255, 0.3);
       color: rgba(0, 0, 0, 1);
    }

    /* Optional: smooth hover effect */
    .floating-button-holder:hover {
      background: rgba(255, 255, 255, 0.3);
    }