/* Shared left pane: the same light aviation theme as the assistant. */
#messenger{display:flex;flex-direction:column;flex:1;min-height:0;min-width:0;color:#35384f;background:#f5f7fa}
#messenger[hidden],#messenger [hidden]{display:none!important}
#messenger>header{position:static;display:flex;align-items:center;justify-content:space-between;padding:6px 4px 10px;background:transparent;border:0;height:auto}
#messenger h2{font-size:13px;margin:0}#chatExit{background:none;border:0;color:#7b7e92;padding:0 6px;font-size:18px}
.chat-layout{display:flex;flex:1;min-height:0;min-width:0}.chat-layout>aside{width:100%;min-height:0;overflow:auto}.chat-new{display:flex;gap:4px;flex-wrap:wrap}.chat-new button{font-size:11px;padding:6px 8px;border-radius:7px;background:white;border-color:#dedde8}
#chatSearch{width:100%;margin:10px 0 0;border-radius:9px;background:white;border:1px solid #dedde8;padding:9px;font-size:12px}
#chatCreate{margin-top:10px;padding:10px;background:white;border:1px solid #dedde8;border-radius:10px}#chatCreate label{font-size:12px}#chatCreate input:not([type=checkbox]),#chatCreate select{width:100%}#chatCreate button{font-size:11px;margin:8px 4px 0 0}#chatGroupHint{display:block;font-size:11px;color:#74788b;line-height:1.5;margin-top:6px}#chatMembers{max-height:210px;overflow:auto}#chatMembers label{display:flex;align-items:center;gap:7px;padding:6px 0;margin:0;overflow-wrap:anywhere}#chatMembers input{width:14px;height:14px;margin:0;flex:none}
#chatThreads{display:flex;flex-direction:column;margin-top:8px;gap:3px}#chatThreads button{text-align:left;padding:11px;border:1px solid transparent;background:transparent;border-radius:10px;min-width:0;width:100%}#chatThreads button:hover,#chatThreads button.selected{background:#e8edf6;border-color:#dce3f0}#chatThreads strong{font-size:12px;color:#34334f}#chatThreads strong,#chatThreads small,#chatThreads span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#chatThreads small{font-size:10px;color:#74788b;margin-top:4px}#chatThreads span{font-size:12px;color:#68768a;margin-top:5px}#chatThreads>p{font-size:12px;color:#74788b;line-height:1.6;padding:12px}
.chat-conversation{display:none;flex-direction:column;flex:1;min-width:0;min-height:0;overflow:hidden}#messenger.chat-reading .chat-conversation{display:flex}#messenger.chat-reading .chat-layout>aside{display:none}
.chat-heading{display:flex;gap:5px;align-items:center;padding:6px 0 9px;border-bottom:1px solid #e2e8f0}.chat-heading strong{flex:1;min-width:0;font-size:12px;overflow-wrap:anywhere}.chat-heading button{font-size:10px;padding:5px;border-radius:6px}#chatBack{font-size:24px;border:0;background:none;padding:0 6px}#chatOlder{font-size:11px}
#chatMessages{flex:1;min-height:80px;overflow:auto;padding:10px;display:flex;flex-direction:column;gap:10px;background-image:linear-gradient(#f5f7fa73,#f5f7fa73),url('/chat-aviation-sketch.png');background-size:auto,560px 560px;scrollbar-width:thin;overscroll-behavior:contain}
#chatMessages article{max-width:92%;padding:9px 11px;border:1px solid #e2e8f0;border-radius:14px 14px 14px 4px;background:white;align-self:flex-start;flex-shrink:0;color:#233041}#chatMessages .chat-mine{align-self:flex-end;background:#e8f0fa;border-color:#cddcf0;border-radius:14px 14px 4px 14px}#chatMessages p{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.5;margin:4px 0;font-size:12px}#chatMessages strong,#chatMessages time{font-size:10px;color:#6f7890}#chatMessages time{display:block;text-align:right}
#chatSend{margin-top:8px;padding:8px;background:white;border:1px solid #dedde8;border-radius:10px;display:flex;align-items:flex-end;gap:5px}#chatSend label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}#chatText{min-width:0;flex:1;resize:vertical;max-height:140px;border:0;background:white;padding:5px;font:inherit;font-size:12px}#chatSendButton{background:#393550;color:white;border-color:#393550;border-radius:7px;padding:7px 10px}#chatStatus{margin:0;padding:5px 2px;font-size:11px;color:#9a453e}#chatStatus:empty{display:none}#openMessenger{font-size:12px}
#fleetPane.assistant-active>#webAssistant[hidden]{display:none!important}

/* Compact, single-column messenger at any user-selected sidebar width. */
#messenger{width:100%;max-width:100%;overflow:hidden;container-type:inline-size}
#messenger *,#messenger *::before,#messenger *::after{box-sizing:border-box}
#messenger>header{padding:4px 3px 7px;flex:none}#messenger.chat-reading>header{display:none}
#messenger .chat-layout,#messenger .chat-layout>aside{min-width:0;max-width:100%}
#messenger .chat-layout>aside{display:flex;flex-direction:column;overflow:hidden}
#messenger.chat-reading .chat-layout>aside{display:none}
#messenger .chat-new{flex:none;display:grid;grid-template-columns:1fr 1fr 1fr;gap:3px}
#messenger .chat-new button{min-width:0;padding:6px 2px;font-size:10px;white-space:normal}
#chatSearch{flex:none;border-radius:18px;padding:8px 12px;background:#eceff5;border-color:transparent}
#chatThreads{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;gap:0;scrollbar-width:thin}
#chatThreads button{display:flex;align-items:center;gap:9px;border:0;border-radius:8px;padding:10px 6px;flex:none}
#chatThreads .chat-avatar{display:flex;align-items:center;justify-content:center;flex:0 0 36px;width:36px;height:36px;border-radius:50%;background:hsl(var(--avatar-hue) 35% 56%);color:white;font-size:13px;font-weight:600}
#chatThreads .chat-row-copy{flex:1;min-width:0}#chatThreads .chat-row-top,#chatThreads .chat-row-bottom{display:flex;align-items:center;gap:6px;min-width:0}
#chatThreads .chat-row-bottom{margin-top:5px}#chatThreads strong{flex:1;min-width:0;font-size:12px}
#chatThreads time{flex:none;font-size:9px;color:#8390a3;font-weight:400}
#chatThreads .chat-preview{flex:1;min-width:0;font-size:11px;margin:0;color:#8590a1}
#chatThreads .chat-unread{flex:none;background:#8175ac;color:white;font-size:10px;min-width:18px;padding:2px 5px;border-radius:10px;margin:0;text-align:center}
#messenger .chat-heading{flex-wrap:wrap;flex:none;min-width:0;padding:5px 0 8px}
#chatTitle{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#chatCloseTicket{max-width:100%}
#chatCreate{max-width:100%;overflow:auto;margin:8px 0 0;min-height:0}
#messenger aside:has(#chatCreate:not([hidden]))>#chatSearch,#messenger aside:has(#chatCreate:not([hidden]))>#chatThreads{display:none}
#chatCreate input:not([type=checkbox]),#chatCreate select{min-width:0;max-width:100%;font-size:12px}
#chatMembers label{min-width:0;white-space:normal;word-break:break-word}#chatMemberSearch{margin:8px 0}
#chatMessages article{min-width:0;max-width:92%}#chatMessages strong{overflow-wrap:anywhere}
#chatSend{flex:none;min-width:0;margin-bottom:1px}#chatText{width:0;min-height:48px;max-width:100%}
@container(max-width:250px){#chatThreads .chat-avatar{flex-basis:30px;width:30px;height:30px;font-size:11px}#chatThreads button{gap:6px;padding:9px 3px}#chatThreads strong{font-size:11px}#chatThreads time{font-size:8px}.chat-heading #chatManage{font-size:9px;padding:4px}}
#messenger.chat-reading>header{display:flex}#messenger>header{gap:7px}#messenger>header h2{flex:1}#chatMenuToggle,#chatExpand{background:transparent;border:0;padding:4px;font-size:17px;color:#65738a}
#chatWidthLabel{display:flex;align-items:center;gap:10px;font-size:11px;margin:0 0 8px}#chatWidth{flex:1;min-width:0;padding:0}
#workspace .layout>#fleetPane.chat-expanded{position:fixed;left:54px;top:0;bottom:0;width:min(var(--chat-width,calc(100vw - 70px)),calc(100vw - 54px));height:100dvh;max-height:none;z-index:60;border-right:1px solid #ccd6e5;box-shadow:12px 0 36px #25304720}
#fleetPane.chat-expanded .assistant-tabs{flex:none}#chatMemberCount{font-size:11px;color:#748298;margin:5px 0}
@container(min-width:640px){#messenger .chat-layout{display:grid;grid-template-columns:260px minmax(0,1fr)}#messenger.chat-reading .chat-layout>aside{display:flex}#messenger .chat-conversation{display:flex}#messenger .chat-layout>aside{border-right:1px solid #dce3ed;padding-right:10px}#messenger .chat-conversation{padding-left:10px}#chatBack{display:none}}
@media(max-width:550px){#workspace .layout>#fleetPane.chat-expanded{left:46px;width:min(var(--chat-width),calc(100vw - 46px))}}
#chatWidthLabel{display:none!important}#chatListDivider,#chatOuterDivider{display:none;touch-action:none;cursor:col-resize;background:#e2e8f1;border:0;position:relative;padding:0;min-width:6px}
#chatListDivider:hover,#chatOuterDivider:hover,#chatListDivider.dragging,#chatOuterDivider.dragging{background:#a9bad2}
#chatListDivider:after,#chatOuterDivider:after{content:'';position:absolute;top:45%;left:2px;width:2px;height:32px;border-radius:3px;background:#91a4bd}
#fleetPane.chat-expanded>#chatOuterDivider{display:block;position:absolute;right:0;top:0;bottom:0;width:7px;z-index:2}
@container(min-width:360px){#messenger .chat-layout{display:grid;grid-template-columns:minmax(130px,var(--chat-list-width,220px)) 6px minmax(0,1fr)}#messenger .chat-layout>aside,#messenger.chat-reading .chat-layout>aside{display:flex;border:0;padding-right:6px}#messenger .chat-conversation{display:flex;padding-left:6px}#chatListDivider{display:block}#chatBack{display:none}#chatThreads .chat-avatar{flex-basis:30px;width:30px;height:30px}#messenger .chat-new{grid-template-columns:1fr}#chatMessages article{max-width:95%}}
.assistant-tabs #openMessenger{display:flex;align-items:center;justify-content:center;gap:5px;flex-wrap:wrap}
#openMessenger .chat-tab-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;min-height:18px;padding:1px 5px;border-radius:10px;background:#76649e;color:#fff;font-size:10px;font-weight:600;line-height:16px;font-variant-numeric:tabular-nums}
#openMessenger .chat-tab-badge[hidden]{display:none}
#messenger .chat-new{grid-template-columns:1fr 1fr}

/* Shared navigation remains visible above every filter/assistant/chat view. */
#workspace .layout>#fleetPane>.assistant-tabs{display:flex!important;position:sticky;top:0;z-index:5;flex:0 0 auto;order:-1;align-self:stretch}
#workspace .layout>#fleetPane{min-height:0;overflow:hidden}
#workspace #fleetPane>#fleetFilters{min-height:0;overflow:auto}
#workspace #fleetPane.processing-filters-open:not(.assistant-active)>#fleetFilters{flex:1 1 50%}
#workspace #fleetPane.processing-filters-open:not(.assistant-active)>#processingFilters{display:block;flex:1 1 50%;min-height:0;overflow:auto}
#workspace #fleetPane.assistant-active>#fleetFilters,#workspace #fleetPane.assistant-active>#processingFilters,#workspace #fleetPane.assistant-active>#settingsMenu{display:none!important}
#workspace #fleetPane>#webAssistant:not([hidden]),#workspace #fleetPane>#messenger:not([hidden]){display:flex!important;flex:1;min-height:0}
#workspace #fleetPane>#webAssistant[hidden],#workspace #fleetPane>#messenger[hidden]{display:none!important}
@media print{#workspace .layout>#fleetPane>.assistant-tabs{display:none!important}}
#workspace .assistant-tabs #assistantTab[hidden]{display:none!important}
#chatAssistantPinned .chat-assistant-avatar{background:#eee7fa;color:#705794}
#chatAssistantPinned .chat-row-copy{display:flex;flex-direction:column;gap:4px;text-align:left}
#chatAssistantPinned small{color:#80718e;font-size:11px}
#messenger.chat-assistant #chatMessages,#messenger.chat-assistant #chatSend,#messenger.chat-assistant #chatOlder{display:none!important}
#messenger.chat-assistant .chat-heading>button:not(#chatBack){display:none!important}
#messenger #webAssistant{flex:1;min-height:0;width:100%;max-width:100%;position:static;padding:6px 0;box-sizing:border-box}
#messenger #webAssistant[hidden]{display:none!important}
#messenger #webAssistant .assistant-heading{display:none}
#messenger #assistantContext{flex-shrink:0;margin:0}
#messenger #assistantMessages{min-height:60px}

#chatFileDrafts{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:5px;max-height:160px;overflow:auto}
#chatFileDrafts[hidden]{display:none}.chat-file-draft{display:flex;align-items:center;gap:5px;border:1px solid #dce5f0;border-radius:6px;padding:4px;min-width:0;max-width:100%;font-size:11px}.chat-file-draft span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-file-draft img{width:36px;height:36px;object-fit:cover}.chat-file-draft button{flex:none}
#chatSend #chatAttach{grid-column:1;grid-row:auto;width:30px;padding:3px}#chatSend{display:grid;grid-template-columns:30px minmax(0,1fr) 34px}#chatSend textarea{grid-column:2;min-width:0;width:100%;box-sizing:border-box}#chatSendButton{grid-column:3}
.chat-file{display:flex;flex-direction:column;gap:4px;max-width:100%;padding:6px 0;overflow-wrap:anywhere}.chat-file img{max-width:100%;max-height:260px;object-fit:contain;border-radius:6px}.chat-file span{font-size:12px}