@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root[data-theme=dark]{--bg-primary: #15191e;--bg-secondary: #1a2028;--bg-tertiary: #212933;--bg-hover: #2a3441;--bg-active: #2d3f55;--bg-input: #0d1117;--bg-message: #1e2936;--bg-message-own: #0d3252;--border: #2d3748;--border-light: #3d4f62;--accent: #1a73e8;--accent-hover: #1557b0;--accent-dim: rgba(26, 115, 232, .15);--accent-glow: rgba(26, 115, 232, .3);--danger: #e06c75;--warning: #e5c07b;--info: #61afef;--text-primary: #e4ecf5;--text-secondary: #8899aa;--text-tertiary: #5a6e82;--text-accent: #4d9fff;--text-danger: #e06c75;--shadow-sm: 0 1px 3px rgba(0,0,0,.4);--shadow-md: 0 4px 16px rgba(0,0,0,.5);--shadow-lg: 0 8px 32px rgba(0,0,0,.6);--scrollbar-thumb: #2d3748;--scrollbar-track: transparent}:root[data-theme=light]{--bg-primary: #f0f4f8;--bg-secondary: #ffffff;--bg-tertiary: #e8edf2;--bg-hover: #dde4eb;--bg-active: #ccd8e8;--bg-input: #f8fafc;--bg-message: #ffffff;--bg-message-own: #d4f0e8;--border: #d0dae4;--border-light: #c0ccd8;--accent: #003DA5;--accent-hover: #002d7a;--accent-dim: rgba(0, 61, 165, .12);--accent-glow: rgba(0, 61, 165, .25);--danger: #c0392b;--warning: #d68910;--info: #2980b9;--text-primary: #1a2634;--text-secondary: #4a6380;--text-tertiary: #7a94aa;--text-accent: #003DA5;--text-danger: #c0392b;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 16px rgba(0,0,0,.12);--shadow-lg: 0 8px 32px rgba(0,0,0,.16);--scrollbar-thumb: #c0ccd8;--scrollbar-track: transparent}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:Inter,system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:68px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding:12px 0;gap:4px;flex-shrink:0;transition:width .2s ease}.sidebar-btn{width:44px;height:44px;border-radius:12px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;transition:all .15s ease;position:relative}.sidebar-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-btn.active{background:var(--accent-dim);color:var(--accent)}.sidebar-btn .badge{position:absolute;top:4px;right:4px;background:var(--danger);color:#fff;font-size:10px;font-weight:700;border-radius:99px;min-width:16px;height:16px;display:flex;align-items:center;justify-content:center;padding:0 4px}.panel{width:280px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}.panel-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px}.panel-title{font-size:15px;font-weight:600;color:var(--text-primary)}.panel-search{margin:12px;position:relative}.panel-search input{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:8px 12px 8px 32px;color:var(--text-primary);font-size:13px;outline:none;transition:border-color .15s}.panel-search input:focus{border-color:var(--accent)}.panel-search input::placeholder{color:var(--text-tertiary)}.panel-search .search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text-tertiary);font-size:14px}.panel-list{flex:1;overflow-y:auto;padding:4px 0}.panel-item{padding:10px 16px;cursor:pointer;border-radius:0;display:flex;align-items:center;gap:10px;transition:background .1s;position:relative}.panel-item:hover{background:var(--bg-hover)}.panel-item.active{background:var(--bg-active)}.panel-item.active:before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--accent);border-radius:0 2px 2px 0}.panel-item-avatar{width:36px;height:36px;border-radius:10px;background:var(--accent-dim);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;flex-shrink:0;position:relative;overflow:hidden}.panel-item-avatar img{width:100%;height:100%;object-fit:cover}.status-dot{position:absolute;bottom:-1px;right:-1px;width:10px;height:10px;border-radius:50%;border:2px solid var(--bg-secondary)}.status-dot.online{background:var(--accent)}.status-dot.offline{background:var(--text-tertiary)}.status-dot.away{background:var(--warning)}.status-dot.busy{background:var(--danger)}.panel-item-info{flex:1;min-width:0}.panel-item-name{font-size:14px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.panel-item-preview{font-size:12px;color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}.panel-item-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.panel-item-time{font-size:11px;color:var(--text-tertiary)}.unread-badge{background:var(--accent);color:#fff;font-size:11px;font-weight:600;border-radius:99px;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;padding:0 5px}.chat-area{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-primary)}.chat-header{height:56px;background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:0 20px;display:flex;align-items:center;gap:12px;flex-shrink:0}.chat-header-title{font-size:15px;font-weight:600;color:var(--text-primary)}.chat-header-sub{font-size:12px;color:var(--text-secondary)}.chat-header-actions{margin-left:auto;display:flex;gap:4px}.messages-container{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:2px}.message-group{display:flex;gap:10px;padding:4px 0}.message-group:hover .message-actions{opacity:1}.message-avatar{width:36px;height:36px;border-radius:10px;background:var(--accent-dim);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;flex-shrink:0;overflow:hidden;align-self:flex-end}.message-avatar img{width:100%;height:100%;object-fit:cover}.message-body{flex:1;min-width:0}.message-meta{display:flex;align-items:baseline;gap:8px;margin-bottom:3px}.message-sender{font-size:13px;font-weight:600;color:var(--text-primary)}.message-time{font-size:11px;color:var(--text-tertiary)}.message-edited{font-size:11px;color:var(--text-tertiary);font-style:italic}.message-bubble{background:var(--bg-message);border:1px solid var(--border);border-radius:4px 12px 12px;padding:8px 12px;font-size:14px;line-height:1.5;color:var(--text-primary);word-break:break-word;display:inline-block;max-width:680px;position:relative}.message-bubble.own{background:var(--bg-message-own);border-color:var(--accent-dim);border-radius:12px 4px 12px 12px}.message-bubble.deleted{color:var(--text-tertiary);font-style:italic;background:var(--bg-tertiary)}.message-read-receipts{display:flex;align-items:center;gap:2px;margin-top:4px;justify-content:flex-end}.read-check{font-size:12px;color:var(--accent)}.read-check.unread{color:var(--text-tertiary)}.message-actions{opacity:0;display:flex;gap:2px;transition:opacity .15s;position:absolute;right:-8px;top:-8px}.message-action-btn{width:28px;height:28px;border-radius:6px;border:1px solid var(--border);background:var(--bg-secondary);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:13px;transition:all .15s}.message-action-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.message-action-btn.danger:hover{background:#e06c7526;color:var(--danger)}.typing-indicator{padding:4px 20px;font-size:12px;color:var(--text-secondary);font-style:italic;min-height:22px}.typing-dots{display:inline-flex;gap:3px;margin-left:4px;vertical-align:middle}.typing-dots span{width:4px;height:4px;border-radius:50%;background:var(--text-secondary);animation:typing-bounce 1.2s infinite}.typing-dots span:nth-child(2){animation-delay:.15s}.typing-dots span:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,80%,to{transform:translateY(0);opacity:.5}40%{transform:translateY(-4px);opacity:1}}.input-area{padding:12px 20px 16px;background:var(--bg-secondary);border-top:1px solid var(--border);flex-shrink:0}.input-wrapper{display:flex;align-items:flex-end;gap:10px;background:var(--bg-input);border:1px solid var(--border);border-radius:12px;padding:8px 12px;transition:border-color .15s}.input-wrapper:focus-within{border-color:var(--accent)}.message-input{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-size:14px;font-family:inherit;resize:none;max-height:160px;line-height:1.5}.message-input::placeholder{color:var(--text-tertiary)}.send-btn{width:36px;height:36px;border-radius:8px;border:none;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .15s;flex-shrink:0}.send-btn:hover{background:var(--accent-hover);transform:scale(1.05)}.send-btn:disabled{background:var(--text-tertiary);cursor:not-allowed;transform:none}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-tertiary)}.empty-state-icon{font-size:64px;opacity:.3}.empty-state-title{font-size:20px;font-weight:600;color:var(--text-secondary)}.empty-state-sub{font-size:14px;text-align:center;max-width:320px}.btn{padding:8px 16px;border-radius:8px;border:none;cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;transition:all .15s;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover)}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:#e06c751f}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-sm{padding:5px 10px;font-size:12px;border-radius:6px}.btn:disabled{opacity:.5;cursor:not-allowed}.input{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:9px 12px;color:var(--text-primary);font-size:14px;font-family:inherit;outline:none;width:100%;transition:border-color .15s}.input:focus{border-color:var(--accent)}.input::placeholder{color:var(--text-tertiary)}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:13px;font-weight:500;color:var(--text-secondary)}.form-error{font-size:12px;color:var(--danger)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:24px;width:100%;max-width:440px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:20px}.modal-title{font-size:18px;font-weight:700;color:var(--text-primary)}.modal-footer{display:flex;gap:8px;justify-content:flex-end}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);position:relative;overflow:hidden}.auth-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 60% 60% at 30% 40%,var(--accent-dim) 0%,transparent 70%),radial-gradient(ellipse 40% 40% at 70% 70%,rgba(97,175,239,.08) 0%,transparent 70%);pointer-events:none}.auth-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:20px;padding:20px;width:100%;max-width:400px;box-shadow:var(--shadow-lg);position:relative;z-index:1}.auth-logo{display:flex;align-items:center;gap:10px;margin-bottom:0;justify-content:center}.auth-logo-icon{width:40px;height:40px;border-radius:12px;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff}.auth-logo-name{font-size:22px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}.auth-tabs{display:flex;background:var(--bg-primary);border-radius:10px;padding:3px;margin-bottom:24px}.auth-tab{flex:1;padding:8px;border:none;border-radius:8px;cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;background:transparent;color:var(--text-tertiary);transition:all .15s}.auth-tab.active{background:var(--bg-secondary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.auth-form{display:flex;flex-direction:column;gap:14px}.divider{height:1px;background:var(--border);margin:4px 0}.section-header{padding:10px 16px 4px;font-size:11px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.8px}.checkbox-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary);cursor:pointer}.checkbox-label input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.user-panel{margin-top:auto;padding:12px 16px;border-top:1px solid var(--border);display:flex;align-items:center;gap:10px}.user-panel-avatar{width:32px;height:32px;border-radius:8px;background:var(--accent-dim);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;flex-shrink:0;overflow:hidden}.user-panel-info{flex:1;min-width:0}.user-panel-name{font-size:13px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-panel-status{font-size:11px;color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.fade-in{animation:fadeIn .2s ease forwards}.slide-in{animation:slideIn .2s ease forwards}.scale-in{animation:scaleIn .2s ease forwards}.members-panel{width:220px;background:var(--bg-secondary);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;flex-shrink:0}.separator{height:1px;background:var(--border);margin:4px 0}.text-secondary{color:var(--text-secondary)}.text-accent{color:var(--accent)}.text-danger{color:var(--danger)}.flex{display:flex}.items-center{align-items:center}.gap-2{gap:8px}.ml-auto{margin-left:auto}.w-full{width:100%}.truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.auth-footer{margin-top:20px;text-align:center;font-size:11px;color:var(--text-tertiary);line-height:1.6}