.chat-widget{--bg-page: #f5f7fa;--bg-white: #ffffff;--bg-sidebar: #fafbfc;--card: lab(100% 0 0);--card-foreground: lab(9.76071% -6.82804 -.714332);--popover: lab(100% 0 0);--popover-foreground: lab(9.76071% -6.82804 -.714332);--primary: #14998D;--primary-foreground: lab(98.84% .0000298023 -.0000119209);--accent: lab(74.8258% -41.8855 -.318265);--accent-foreground: lab(9.76071% -6.82804 -.714332);--muted: lab(95.9761% -1.01101 -.109184);--primary-light: #e8f5f1;--primary-dark: #247a63;--text-dark: #2c3e50;--text-muted: #7f8c8d;--text-light: #95a5a6;--border: #e8ecef;--border-light: #e4e4e4;--message-other: var(--muted);--message-self: var(--primary);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--text-lg: 1.125rem;--text-lg--line-height: 1.75rem;--spacing: .25rem;display:flex;height:100%;min-height:500px;background:var(--bg-white);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md);position:relative;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--text-dark)}.chat-widget,.chat-widget *,.chat-widget *:before,.chat-widget *:after{box-sizing:border-box}.chat-sidebar{width:calc(var(--spacing) * 80);min-width:calc(var(--spacing) * 80);background:var(--bg-white);border-right:1px solid var(--border);display:flex;flex-direction:column;border-radius:16px 0 0 16px}.sidebar-header{padding:16px;display:flex;align-items:center;justify-content:space-between}.sidebar-title{display:flex;align-items:center;gap:8px}.sidebar-header h2{font-size:var(--text-lg);line-height:var(--text-lg--line-height);font-weight:700;color:var(--text-dark);margin:0}.total-unread-badge{background:var(--primary);color:#fff;font-size:11px;font-weight:600;padding:2px 8px;border-radius:12px;min-width:20px;text-align:center}.btn-new{height:35px;border:none;background:transparent;color:#14998d;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:color .5s;border-radius:6px;padding:10px}.btn-new:hover{color:#fff;background-color:#14998d}.sidebar-search{padding:0 16px calc(var(--spacing) * 3);position:relative;border-bottom:1px solid var(--border-light)}.sidebar-search svg{position:absolute;left:28px;top:11px;color:var(--text-muted);pointer-events:none}.sidebar-search input{width:100%;padding:8px 12px 8px 36px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--bg-white);color:var(--text-dark);outline:none;transition:border-color .2s}.sidebar-search input::placeholder{color:var(--text-light)}.sidebar-search input:focus{border-color:var(--primary);background:#fff}.conversation-list{flex:1;overflow-y:auto}.conversation-item{padding:12px 16px;display:flex;align-items:center;gap:6px;cursor:pointer;transition:background .2s;border-bottom:1px solid var(--border-light)}.conversation-item:hover{background:var(--bg-page)}.conversation-item.active{background:#f1f4f4;border-left-color:var(--primary)}.conversation-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;margin-right:12px;flex-shrink:0}.conversation-avatar.general{background:var(--primary)}.conversation-info{flex:1;min-width:0;overflow:hidden}.conversation-name{font-size:15px;font-weight:500;color:var(--text-dark);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-preview{font-size:13px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-meta{flex-shrink:0;margin-left:8px;text-align:right}.unread-badge{background:var(--primary);color:#fff;font-size:11px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-weight:500}.chat-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-white);position:relative;border-radius:0 16px 16px 0;overflow:hidden}.chat-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--bg-white)}.chat-header-left{display:flex;align-items:center;gap:12px}.chat-header-avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px}.chat-header-info h3{font-size:15px;font-weight:600;color:var(--text-dark);margin:0}.search-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:8px;border-radius:6px;transition:all .15s}.search-btn:hover{background:var(--bg-page);color:var(--primary)}.messages-container{flex:1;overflow-y:auto;padding:20px;background:var(--bg-white)}.date-divider{text-align:center;margin:20px 0}.date-divider span{background:var(--bg-page);color:var(--text-muted);font-size:12px;font-weight:600;padding:6px 16px;border-radius:16px;box-shadow:0 2px 8px #0000000f;display:inline-block}.message{max-width:65%;margin-bottom:12px;display:flex;flex-direction:column}.message.self{margin-left:auto;align-items:flex-end}.message.other{margin-right:auto;align-items:flex-start}.sender-name{font-family:Proxima Nova,sans-serif;font-size:12px;font-weight:700;color:#52606d;margin-bottom:4px;margin-left:2px}.message-bubble{padding:8px 12px 22px;border-radius:var(--radius-md);font-size:14px;line-height:1.4;word-wrap:break-word;position:relative;display:inline-block;max-width:100%;min-width:3rem}.message.self .message-bubble{background:var(--message-self);color:#fff}.message.other .message-bubble{background:var(--message-other);color:var(--text-dark)}.message.highlighted .message-bubble{animation:highlightPulse 1.5s ease-in-out;box-shadow:0 0 0 3px var(--primary)}@keyframes highlightPulse{0%,to{box-shadow:0 0 0 3px var(--primary)}50%{box-shadow:0 0 0 6px #2d96794d}}.message-time{font-size:10px;position:absolute;bottom:4px;left:12px;font-weight:400;opacity:.7;min-width:35px}.message.self .message-time{color:#ffffffe6}.message.other .message-time{color:var(--text-muted)}.chat-composer{padding:16px 20px;background:var(--bg-white);border-top:1px solid var(--border);display:flex;align-items:center;gap:12px}.btn-attach{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:8px;border-radius:6px}.btn-attach:hover{background:var(--bg-page);color:var(--primary)}.composer-input{flex:1;padding:10px 16px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:var(--bg-white);color:var(--text-dark);outline:none;transition:border-color .2s}.composer-input:focus{border-color:var(--primary);background:var(--bg-white)}.composer-input::placeholder{color:#999;font-size:14px}.btn-send{width:36px;height:36px;border-radius:8px;border:none;background:var(--primary);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;flex-shrink:0}.btn-send:hover{background:var(--primary-dark)}.btn-send:disabled{background:var(--border);cursor:not-allowed}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);padding:40px;background:var(--bg-page)}.empty-state h3{font-size:16px;font-weight:600;color:var(--text-dark);margin-bottom:8px}.empty-state p{font-size:14px;color:var(--text-muted)}.modal-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:modalFadeIn .2s ease-out}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-white);border-radius:var(--radius-lg);width:100%;max-width:520px;max-height:80vh;overflow:hidden;box-shadow:0 20px 60px #0000004d;animation:modalSlideUp .3s ease-out}.modal.active{display:block;top:initial!important;left:initial!important;height:max-content}@keyframes modalSlideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{flex-direction:row;padding:20px 24px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;background:var(--bg-white)}.modal-header h3{font-size:17px;font-weight:600;margin:0;color:var(--text-dark)}.modal-close{background:none;border:none;font-size:20px;color:var(--text-light);cursor:pointer;padding:0;margin:0;border-radius:4px;transition:all .15s;display:flex;align-items:center;justify-content:center;width:28px;height:28px;line-height:1;flex-shrink:0}.modal-close:hover{background:var(--border-light);color:var(--text-dark)}.modal-search{padding:16px 24px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;gap:10px;background:var(--bg-page)}.modal-search svg{width:18px;height:18px;color:var(--text-muted);flex-shrink:0}.modal-search input{flex:1;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;background:var(--bg-white);color:var(--text-dark)}.modal-search input::placeholder{color:var(--text-light)}.modal-search input:focus{outline:none;border-color:var(--primary)}.modal-body{padding:8px 0;max-height:350px;overflow-y:auto}.modal-footer{padding:16px 24px;border-top:1px solid var(--border-light);background:var(--bg-page)}.modal-body .empty-state{padding:60px 40px;text-align:center;background:transparent}.modal-body .empty-state:before{content:"👥";display:block;font-size:48px;margin-bottom:16px;opacity:.5}.modal-body .empty-state h3{font-size:16px;font-weight:600;color:var(--text-dark);margin-bottom:8px}.modal-body .empty-state p{font-size:14px;color:var(--text-muted);line-height:1.5;max-width:280px;margin:0 auto}.user-list-item{display:flex;align-items:center;padding:12px 24px;cursor:pointer;transition:all .15s;border-left:3px solid transparent;gap:12px}.user-list-item:hover{background:var(--bg-page)}.user-list-item.selected{background:var(--primary-light);border-left-color:var(--primary)}.user-radio{width:18px;height:18px;cursor:pointer;accent-color:var(--primary);flex-shrink:0}.user-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;margin-right:14px;flex-shrink:0}.user-name{font-size:14px;font-weight:500;color:var(--text-dark);flex:1}.btn-create-conversation{width:100%;padding:12px 24px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}.btn-create-conversation:hover:not(:disabled){background:var(--primary-dark)}.btn-create-conversation:disabled{background:var(--text-light);cursor:not-allowed;opacity:.5}.search-overlay{position:absolute;top:70px;right:20px;background:var(--bg-white);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);padding:12px;width:280px;z-index:100}.search-overlay input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px}.search-overlay input:focus{outline:none;border-color:var(--primary)}.search-results{max-height:180px;overflow-y:auto;margin-top:8px}.search-result-item{padding:12px 16px;border-bottom:1px solid var(--border-light);font-size:14px;color:var(--text-dark);cursor:pointer;transition:background .2s}.search-result-item:hover{background:var(--bg-page)}.search-result-item:active{background:var(--border-light)}.loading-more{display:flex;align-items:center;justify-content:center;padding:16px;gap:12px;color:var(--text-light);font-size:13px}.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.scroll-to-bottom{position:absolute;bottom:90px;right:24px;width:44px;height:44px;background:var(--primary);color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px #00000026;transition:all .2s;z-index:10}.scroll-to-bottom:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 16px #0003}.scroll-to-bottom:active{transform:translateY(0)}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-muted);font-size:14px}.chat-widget.widget-mode{border-radius:0;height:100%}@media(max-width:768px){.chat-sidebar{width:100%;min-width:auto;position:absolute;left:0;top:0;bottom:0;z-index:10}.chat-widget{flex-direction:column}}.message-bubble.pending{opacity:.6}