* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
  }

  body {
    margin: 0;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
  }

  .chat-frame {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    border: none;
    z-index: 1;
  }

  .dock {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px 20px;
    background-color: rgba(20, 20, 20, 0.8);
    position: fixed;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    border-radius: 18px;
    box-shadow: 0 0 0 1px rgba(80, 80, 80, 0.2), 
               0 4px 12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
  }
  
  .dock-icons {
    display: flex;
    align-items: center;
    gap: 22px;
  }
  
  .nav-link {
    color: white;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    transition: all 0.2s;
    opacity: 0.85;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-radius: 8px;
    text-decoration: none;
  }
  
  .nav-link:hover {
    transform: scale(1.15);
    opacity: 1;
  }
  
  .nav-link.active {
    opacity: 1;
  }
  
  .nav-link svg {
    width: 24px;
    height: 24px;
  }
  
  .nav-link::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    background-color: rgba(40, 40, 40, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    margin-bottom: 15px;
    z-index: 99;
    pointer-events: none;
    font-family: 'Poppins', sans-serif;
    font-weight: normal;
  }
  
  .nav-link:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }