/* ================================================================
   MCB PRIVATE CHAT LARGE VIEW V2
   FIX: Typing/composer area stays permanently below the message area.
   ================================================================ */

@media (min-width:721px){
  .mcb-private-chat-panel{
    width:min(1120px,calc(100vw - 36px))!important;
    height:min(820px,calc(100vh - 42px))!important;
    max-width:none!important;
    max-height:none!important;
    right:18px!important;
    bottom:18px!important;
    border-radius:18px!important;
    overflow:hidden!important;
    box-shadow:0 24px 70px rgba(19,31,54,.26)!important;
  }

  /* Header is fixed-height; body consumes the remaining panel height. */
  .mcb-private-chat-head{
    flex:0 0 auto!important;
  }

  .mcb-private-chat-body{
    flex:1 1 auto!important;
    min-height:0!important;
    height:auto!important;
    overflow:hidden!important;
    grid-template-columns:285px minmax(0,1fr)!important;
  }

  .mcb-private-chat-contacts{
    min-height:0!important;
    overflow:hidden!important;
  }

  .mcb-private-chat-user-list{
    flex:1 1 auto!important;
    min-height:0!important;
    height:auto!important;
    max-height:none!important;
    overflow-y:auto!important;
  }

  .mcb-private-chat-conversation{
    display:flex!important;
    flex-direction:column!important;
    min-width:0!important;
    min-height:0!important;
    height:100%!important;
    overflow:hidden!important;
  }

  /*
    IMPORTANT FIX:
    The conversation view MUST remain a vertical flex column.
    Previous grid styling could place the composer in the middle because
    the DOM has person bar + messages + error + form (4 children).
  */
  #mcbPrivateChatConversationView,
  .mcb-private-chat-conversation-view{
    display:flex!important;
    flex-direction:column!important;
    flex:1 1 auto!important;
    min-height:0!important;
    height:100%!important;
    overflow:hidden!important;
    position:relative!important;
  }

  #mcbPrivateChatConversationView[hidden]{
    display:none!important;
  }

  .mcb-private-chat-personbar{
    flex:0 0 58px!important;
    height:58px!important;
    min-height:58px!important;
  }

  /*
    Message list owns ALL free vertical space.
    height:0 is deliberate in a flex column: it prevents content height
    from pushing the composer upward/overlapping it.
  */
  #mcbPrivateChatMessages,
  .mcb-private-chat-messages{
    flex:1 1 auto!important;
    min-height:0!important;
    height:0!important;
    max-height:none!important;
    overflow-y:auto!important;
    overflow-x:hidden!important;
    position:relative!important;
    z-index:1!important;
    padding:12px 16px!important;
    scroll-behavior:smooth;
    background:linear-gradient(180deg,#f9fbff,#f6f9fd)!important;
  }

  #mcbPrivateChatError,
  .mcb-private-chat-error{
    flex:0 0 auto!important;
    position:static!important;
    margin:0!important;
  }

  /*
    Composer / typing area is now a normal final flex child.
    It cannot float, overlap, translate, or sit in the middle.
  */
  #mcbPrivateChatForm,
  .mcb-private-chat-compose{
    display:block!important;
    flex:0 0 auto!important;
    position:static!important;
    inset:auto!important;
    top:auto!important;
    right:auto!important;
    bottom:auto!important;
    left:auto!important;
    width:100%!important;
    height:auto!important;
    min-height:0!important;
    max-height:none!important;
    margin:0!important;
    transform:none!important;
    z-index:3!important;
    box-sizing:border-box!important;
    padding:9px 13px 11px!important;
    border-top:1px solid #e4eaf2!important;
    background:#fff!important;
    box-shadow:0 -4px 12px rgba(20,39,67,.035)!important;
  }

  #mcbPrivateChatInput,
  .mcb-private-chat-compose textarea{
    display:block!important;
    width:100%!important;
    min-height:46px!important;
    height:46px!important;
    max-height:84px!important;
    margin:0!important;
    box-sizing:border-box!important;
    resize:vertical!important;
    padding:8px 10px!important;
    font-size:12px!important;
    line-height:1.3!important;
  }

  .mcb-private-chat-compose-bottom{
    display:flex!important;
    align-items:center!important;
    justify-content:space-between!important;
    gap:8px!important;
    margin-top:6px!important;
  }

  /* Compact messages so around 10+ normal messages fit comfortably. */
  .mcb-private-chat-msg-row{
    margin:3px 0 5px!important;
  }

  .mcb-private-chat-msg{
    max-width:76%!important;
    padding:6px 9px 5px!important;
    border-radius:11px!important;
    box-shadow:0 2px 7px rgba(28,43,70,.06)!important;
  }

  .mcb-private-chat-msg-text{
    font-size:12px!important;
    line-height:1.3!important;
  }

  .mcb-private-chat-msg-meta{
    margin-top:2px!important;
    font-size:8px!important;
    line-height:1.1!important;
  }

  .mcb-private-chat-user{
    min-height:46px!important;
    padding:6px 8px!important;
  }

  .mcb-private-chat-user-avatar{
    width:33px!important;
    height:33px!important;
    flex:0 0 33px!important;
    font-size:10px!important;
  }

  .mcb-private-chat-person-avatar{
    width:35px!important;
    height:35px!important;
    flex:0 0 35px!important;
  }
}

/* Mobile/tablet: composer also remains fixed below the scrollable message list. */
@media (max-width:720px){
  .mcb-private-chat-panel{
    width:calc(100vw - 14px)!important;
    height:calc(100vh - 20px)!important;
    right:7px!important;
    bottom:7px!important;
    border-radius:15px!important;
    overflow:hidden!important;
  }

  .mcb-private-chat-conversation{
    overflow:hidden!important;
  }

  #mcbPrivateChatConversationView,
  .mcb-private-chat-conversation-view{
    display:flex!important;
    flex-direction:column!important;
    height:100%!important;
    min-height:0!important;
    overflow:hidden!important;
  }

  #mcbPrivateChatConversationView[hidden]{
    display:none!important;
  }

  #mcbPrivateChatMessages,
  .mcb-private-chat-messages{
    flex:1 1 auto!important;
    height:0!important;
    min-height:0!important;
    overflow-y:auto!important;
    padding:9px!important;
  }

  #mcbPrivateChatForm,
  .mcb-private-chat-compose{
    flex:0 0 auto!important;
    position:static!important;
    inset:auto!important;
    width:100%!important;
    margin:0!important;
    transform:none!important;
    z-index:3!important;
    box-sizing:border-box!important;
    background:#fff!important;
  }
}