.message-exchange {
    width: 100%;
    margin: 2rem 0;
    padding: 0;
    font-family: "Fira Sans", sans-serif;
  }
  
  .message-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .message {
    display: flex;
    flex-direction: column;
    max-width: 70%;
  }
  
  .message.sender {
    align-self: flex-start;
    align-items: flex-start;
  }
  
  .message.receiver {
    align-self: flex-end;
    align-items: flex-end;
  }
  
  .message-bubble {
    padding: 0.6rem 0.8rem;
    border-radius: 1rem;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    word-wrap: break-word;
  }
  
  .message.sender .message-bubble {
    background: var(--md-default-bg-color);
    color: var(--md-default-fg-color);
    border: 1px solid var(--md-default-fg-color);
    border-bottom-left-radius: 0.25rem;
  }
  
  .message.receiver .message-bubble {
    background: var(--md-default-fg-color);
    color: var(--md-default-bg-color);
    border-bottom-right-radius: 0.25rem;
  }
  
  .message-text {
    font-size: 0.85rem;
    line-height: 1.3;
    margin-bottom: 0.2rem;
  }
  
  .message-time {
    font-size: 0.65rem;
    opacity: 0.7;
    text-align: right;
  }
  
  .sender-name {
    font-size: 0.7rem;
    font-weight: 500;
    margin-top: 0.2rem;
    opacity: 0.8;
  }
  
  /* Dark mode adjustments */
  [data-md-color-scheme="slate"] .message-bubble {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  }
  
  /* Responsive design */
  @media (max-width: 768px) {
    .message {
      max-width: 85%;
    }
    
    .message-bubble {
      padding: 0.6rem 0.8rem;
    }
  }