.copilot-chat{--chat-bg:#f7f8fc;--chat-ink:#242424;--chat-line:#dde1eb;--chat-user:#e9eaff;--chat-muted:#626775;margin:32px 0 38px;border:1px solid var(--chat-line);border-radius:14px;overflow:hidden;background:var(--chat-bg);color:var(--chat-ink);box-shadow:0 8px 30px #15213b10;font-family:'Segoe UI',Arial,sans-serif;font-size:.88em;line-height:1.6;text-indent:0;}
.chat-window-title{display:flex;align-items:center;gap:9px;padding:14px 20px;background:var(--chat-bg);border-bottom:1px solid var(--chat-line);}
.copilot-mark{width:30px;height:30px;flex:none;}.chat-window-title strong{font-size:1.08em;font-weight:600;}
.window-tools{margin-left:auto;display:flex;align-items:center;gap:18px;color:var(--chat-muted);}.window-tools svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linejoin:round;}.window-tools>span{font-size:22px;line-height:1;}
.chat-context{display:flex;justify-content:space-between;gap:12px;padding:12px 20px 0;font-size:.72em;font-weight:600;color:var(--chat-ink);}.chat-context span{font-weight:400;color:var(--chat-muted);}
.chat-thread{padding:24px 20px 12px;}.chat-message{display:flex;align-items:flex-start;gap:9px;margin:0 0 24px;}.chat-avatar{display:grid;place-items:center;width:28px;height:28px;flex:none;margin-top:2px;border-radius:50%;background:#dfe4ef;color:#364660;font-size:10px;font-weight:600;}.chat-avatar img{display:block;width:28px;height:28px;}.assistant .chat-avatar{background:transparent;}
.chat-bubble{min-width:0;flex:1;}.chat-name{display:block;font-size:.72em;font-weight:600;margin:0 0 7px;color:var(--chat-muted);}.chat-bubble p{margin:0;overflow-wrap:anywhere;text-indent:0!important;}
.chat-message.user{flex-direction:row-reverse;margin-left:28px;}.user .chat-bubble{flex:0 1 auto;background:var(--chat-user);padding:12px 16px;border:1px solid #dfe0f3;border-radius:14px 2px 14px 14px;}.user .chat-avatar{margin-top:9px;}.user .chat-name{text-align:right;}
.chat-file{display:flex;gap:11px;align-items:center;margin:-12px 0 27px 37px;padding:12px;background:#fff;border:1px solid var(--chat-line);border-radius:9px;}.file-icon{display:grid;place-items:center;flex:none;width:30px;height:37px;border-radius:4px;background:#185abd;color:#fff;font:bold 12px/1 'Segoe UI',Arial,sans-serif;box-shadow:inset -5px 0 #ffffff20;}.chat-file>div{flex:1;min-width:0;}.chat-file strong{display:block;font-size:.82em;font-weight:600;overflow-wrap:anywhere;}.chat-file div span{display:block;margin-top:3px;color:var(--chat-muted);font-size:.66em;}.chat-file svg{width:19px;height:19px;flex:none;fill:none;stroke:var(--chat-muted);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.chat-input{margin:0 16px 18px;padding:13px 15px 10px;background:#fff;border:1px solid var(--chat-line);border-radius:13px;box-shadow:0 2px 4px #18243908;color:var(--chat-muted);font-size:.82em;}.chat-input>div{display:flex;justify-content:space-between;align-items:center;margin-top:17px;}.input-plus{font-size:23px;line-height:1;}.input-send{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#edf0f5;color:#79818f;font-size:18px;}
body.night .copilot-chat{--chat-bg:#1c2230;--chat-ink:#f1f2f7;--chat-line:#394252;--chat-user:#32344d;--chat-muted:#b8bfd0;box-shadow:none;}body.night .user .chat-bubble{border-color:#44455f;}body.night .chat-file,body.night .chat-input{background:#242c3b;}body.night .input-send{background:#394257;color:#cbd2df;}
@media(max-width:580px){.chat-thread{padding:20px 12px 10px;}.chat-window-title{padding:13px 15px;}.chat-context{padding:11px 15px 0;}.chat-message{gap:7px;}.chat-message.user{margin-left:12px;}.chat-avatar,.chat-avatar img{width:24px;height:24px;}.chat-avatar{font-size:9px;}.user .chat-bubble{padding:11px 12px;}.chat-file{margin-left:31px;padding:10px;gap:9px;}.chat-input{margin:0 12px 14px;}.file-icon{width:26px;height:33px;font-size:10px;}}
@media print{.copilot-chat{break-inside:avoid;box-shadow:none;}.chat-input{display:none;}}