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8px;margin-bottom:6px;font-size:12px;max-width:100%;overflow:hidden}.reply-quote-out{background:#00000012;border-color:#25d366}.reply-quote-in{background:#0000000d;border-color:var(--secondary-color)}.bubble-reply-text{color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bubble-reply-btn{display:none;align-items:center;justify-content:center;align-self:center;flex-shrink:0;width:28px;height:28px;border-radius:50%;border:none;background:#ffffffe6;box-shadow:0 1px 4px #00000026;cursor:pointer;font-size:13px;color:#54656f;transition:background .15s;margin:0 4px}.chat-bubble-wrapper:hover .bubble-reply-btn{display:flex}.bubble-reply-btn:hover{background:#fff;color:var(--secondary-color)}.bubble-pending .chat-bubble{opacity:.7}.bubble-failed .chat-bubble{border:1px solid #dc3545}.msg-pending{color:#aaa;font-size:12px}.reply-preview-strip{display:flex;align-items:center;background:#f0f0f0;border-top:1px solid #e0e0e0;padding:6px 12px;gap:8px}.reply-preview-bar{width:3px;min-height:32px;background:var(--secondary-color);border-radius:2px;flex-shrink:0}.reply-preview-content{flex:1;min-width:0;display:flex;flex-direction:column}.reply-preview-label{font-size:11px;color:var(--secondary-color);font-weight:600}.reply-preview-text{font-size:12px;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview-close{width:28px;height:28px;min-width:28px;font-size:14px;color:#999}.chat-header-sub{font-size:11px;color:#aaa;margin-right:4px}.chat-typing-indicator{font-size:12px;color:#25d366;font-style:italic;animation:typing-fade 1s ease-in-out infinite alternate}@keyframes typing-fade{0%{opacity:.6}to{opacity:1}}.file-preview-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:200}.file-preview-modal{background:#fff;border-radius:12px;width:420px;max-width:95vw;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 8px 32px #0000004d}.file-preview-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #eee;font-weight:600;font-size:15px;color:#333}.file-preview-body{flex:1;display:flex;align-items:center;justify-content:center;padding:20px;background:#f8f8f8;min-height:200px}.file-preview-image{max-width:100%;max-height:360px;border-radius:8px;object-fit:contain}.file-preview-video{max-width:100%;max-height:360px;border-radius:8px}.file-preview-doc{display:flex;flex-direction:column;align-items:center;gap:12px;color:#777}.file-preview-doc-info{text-align:center}.file-preview-doc-name{font-size:14px;font-weight:600;color:#333;word-break:break-all}.file-preview-doc-size{font-size:12px;color:#999;margin-top:4px}.file-preview-footer{display:flex;align-items:flex-end;gap:8px;padding:12px 16px;border-top:1px solid #eee}.file-caption-input{flex:1;border:1px solid #e0e0e0;border-radius:20px;padding:8px 14px;font-size:14px;resize:none;outline:none;background:#f9f9f9;font-family:inherit;max-height:80px}.file-caption-input:focus{border-color:var(--secondary-color);background:#fff}@media (max-width: 768px){.chat-sidebar{position:fixed;top:0;left:0;bottom:0;width:100%;z-index:100;transform:translate(-100%);transition:transform .25s ease}.chat-sidebar.open{transform:translate(0)}.btn-back-mobile{display:flex}.chat-window{padding:12px 16px}.chat-bubble{max-width:85%}}