:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--bg-hover: #2a2a2a;--bg-active: #333;--text-primary: #e0e0e0;--text-secondary: #999;--text-muted: #757575;--accent: #6c5ce7;--accent-hover: #7c6df7;--danger: #e74c3c;--border: #2a2a2a;--msg-own: #6c5ce7;--msg-other: #2a2a2a;--radius: 8px;--radius-lg: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow-y:auto}#root{min-height:100vh}.skip-nav{position:absolute;top:-100%;left:0;background:var(--accent);color:#fff;padding:8px 16px;z-index:10000;font-size:14px;border-radius:0 0 var(--radius) 0;text-decoration:none}.skip-nav:focus{top:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}*:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;overflow-y:auto;background:var(--bg-primary)}.auth-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px;width:100%;max-width:400px;position:relative}.auth-language-switcher{position:absolute;top:12px;right:12px;background:var(--bg-primary);color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-sm, 4px);padding:4px 8px;font-size:13px;cursor:pointer}.auth-language-switcher:focus{outline:2px solid var(--accent);outline-offset:1px}.language-switcher{cursor:pointer}.auth-card h1{font-size:24px;margin-bottom:4px;color:var(--accent)}.auth-subtitle{color:var(--text-secondary);margin-bottom:24px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px}.form-group input{width:100%;padding:10px 12px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;outline:none;transition:border-color .2s}.form-group input:focus,.form-group input:focus-visible{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}.form-hint{display:block;font-size:12px;color:var(--text-muted);margin-top:4px}.btn-primary{width:100%;padding:10px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;margin-top:8px;transition:background .2s}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.error-message{background:#e74c3c1a;border:1px solid rgba(231,76,60,.3);color:var(--danger);padding:8px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:16px}.auth-link{text-align:center;margin-top:20px;font-size:13px;color:var(--text-secondary)}.auth-link a{color:var(--accent);text-decoration:none}.phone-steps{display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:24px}.phone-step-dot{width:28px;height:28px;border-radius:50%;background:var(--bg-tertiary);color:var(--text-muted);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;border:2px solid var(--border);transition:all .2s}.phone-step-dot.active{background:var(--accent);color:#fff;border-color:var(--accent)}.phone-step-dot.done{background:#2ecc71;color:#fff;border-color:#2ecc71}.phone-step-line{width:40px;height:2px;background:var(--border)}.phone-resend{text-align:center;margin-bottom:12px}.resend-timer{font-size:13px;color:var(--text-muted)}.resend-btn{background:none;border:none;color:var(--accent);font-size:13px;cursor:pointer;padding:4px 8px;border-radius:var(--radius);transition:background .2s}.resend-btn:hover:not(:disabled){background:#6c5ce71a}.resend-btn:disabled{opacity:.5;cursor:not-allowed}.phone-form-actions{display:flex;gap:8px;margin-top:8px}.phone-form-actions .btn-primary{flex:1}.btn-secondary{padding:10px 16px;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.btn-secondary:hover:not(:disabled){background:var(--bg-hover)}.btn-secondary:disabled{opacity:.6;cursor:not-allowed}.app-layout{display:flex;height:100vh}.sidebar{width:320px;min-width:320px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:12px 16px;border-bottom:1px solid var(--border)}.persona-switcher{display:flex;align-items:center;gap:10px}.persona-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:#fff;flex-shrink:0}.persona-info{flex:1;min-width:0}.persona-name-row{display:flex;align-items:center;gap:6px;min-width:0}.persona-name{display:block;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.persona-name-select{appearance:none;-webkit-appearance:none;background:transparent;border:none;color:var(--text-primary);font-size:14px;font-weight:500;cursor:pointer;padding:0 16px 0 0;min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round' 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.15s}.chat-item:hover{background:var(--bg-hover)}.chat-item.active{background:var(--bg-active)}.chat-avatar{width:42px;height:42px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--text-secondary);flex-shrink:0}.chat-info{flex:1;min-width:0}.chat-top-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:3px}.chat-name{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-time{font-size:11px;color:var(--text-muted);flex-shrink:0;margin-left:8px}.chat-bottom-row{display:flex;justify-content:space-between;align-items:center}.chat-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.unread-badge{background:var(--accent);color:#fff;font-size:11px;font-weight:600;padding:2px 7px;border-radius:10px;min-width:20px;text-align:center;flex-shrink:0;margin-left:8px}.main-content{flex:1;display:flex;flex-direction:column;min-width:0}.main-toolbar{padding:8px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:flex-end}.btn-new-chat{background:var(--accent);color:#fff;border:none;padding:6px 16px;border-radius:var(--radius);font-size:13px;cursor:pointer;transition:background .2s}.btn-new-chat:hover{background:var(--accent-hover)}.chat-view{flex:1;display:flex;flex-direction:column;min-height:0}.chat-view.empty{align-items:center;justify-content:center}.empty-state{text-align:center;color:var(--text-muted);padding:40px 20px}.empty-state h2{margin-bottom:8px;color:var(--text-secondary)}.chat-header{padding:12px 20px;border-bottom:1px solid var(--border);background:var(--bg-secondary)}.chat-header h3{font-size:15px;font-weight:600}.chat-members{font-size:12px;color:var(--text-muted)}.messages-container{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:4px}.btn-load-more{align-self:center;background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border);padding:6px 16px;border-radius:var(--radius);font-size:12px;cursor:pointer;margin-bottom:12px}.btn-load-more:hover{background:var(--bg-hover)}.infinite-scroll-sentinel{display:flex;justify-content:center;padding:8px 0;min-height:1px}.infinite-scroll-sentinel .loading-spinner{color:var(--text-muted);font-size:12px}.message{display:flex;max-width:65%}.message.own{align-self:flex-end}.message.other{align-self:flex-start}.message-bubble{padding:8px 12px;border-radius:var(--radius-lg);position:relative}.message.own .message-bubble{background:var(--msg-own);border-bottom-right-radius:4px}.message.other .message-bubble{background:var(--msg-other);border-bottom-left-radius:4px}.message-body{font-size:14px;line-height:1.4;word-break:break-word}.message-time{font-size:10px;color:#ffffff80}.message.other .message-time{color:var(--text-muted)}.message.other .read-receipt{display:none}.upload-error{padding:6px 12px;background:var(--bg-tertiary);color:#e74c3c;font-size:13px;text-align:center;border-top:1px solid var(--border)}.message-input{display:flex;gap:8px;padding:12px 20px;border-top:1px solid var(--border);background:var(--bg-secondary)}.message-input input{flex:1;padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:20px;color:var(--text-primary);font-size:14px;outline:none}.message-input input:focus,.message-input input:focus-visible{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}.message-input button{background:var(--accent);color:#fff;border:none;padding:10px 20px;border-radius:20px;font-size:14px;cursor:pointer;transition:background .2s}.message-input button:hover:not(:disabled){background:var(--accent-hover)}.message-input button:disabled{opacity:.5;cursor:not-allowed}.dialog-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.dialog{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:420px;max-height:80vh;display:flex;flex-direction:column}.dialog-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.dialog-header h3{font-size:16px}.dialog-body{padding:16px 20px;overflow-y:auto;flex:1;min-height:0}.dialog-footer{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px;border-top:1px solid var(--border);flex-shrink:0}.dialog-body input:not([type=radio]):not([type=checkbox]){width:100%;padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;outline:none;margin-bottom:12px}.dialog-body input:not([type=radio]):not([type=checkbox]):focus,.dialog-body input:not([type=radio]):not([type=checkbox]):focus-visible{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}.search-input-wrapper{position:relative}.search-input-wrapper input{width:100%;padding-right:32px;box-sizing:border-box}.search-spinner{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:14px;height:14px;border:2px solid var(--text-muted);border-top-color:transparent;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:translateY(-50%) rotate(360deg)}}.search-loading{text-align:center;color:var(--text-muted);padding:12px;font-size:13px}.search-results{display:flex;flex-direction:column}.search-result-item{display:flex;align-items:center;gap:12px;padding:10px 12px;cursor:pointer;border-radius:var(--radius);transition:background .15s}.search-result-item:hover{background:var(--bg-hover)}.search-avatar{width:36px;height:36px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--text-secondary)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.typing-indicator{color:var(--accent);font-style:italic;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.presence-dot{width:10px;height:10px;border-radius:50%;background:var(--text-muted);flex-shrink:0;margin-left:8px}.presence-dot.online{background:#2ecc71;box-shadow:0 0 6px #2ecc7180}.chat-header{display:flex;align-items:center;justify-content:space-between}.chat-header-info{flex:1;min-width:0}.btn-rename-chat{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:2px 4px;margin-left:6px;vertical-align:middle;opacity:.6;transition:opacity .15s}.btn-rename-chat:hover{opacity:1}.chat-rename-row{display:flex;align-items:center;gap:6px}.chat-rename-input{flex:1;padding:4px 8px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px}.message-sender{font-size:11px;font-weight:600;color:var(--accent);margin-bottom:2px}.selected-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.chip{background:var(--accent);color:#fff;padding:4px 10px;border-radius:16px;font-size:12px;cursor:pointer;transition:opacity .2s}.chip:hover{opacity:.8}.search-result-item.selected{background:var(--bg-active)}.check-mark{margin-left:auto;color:var(--accent);font-size:16px}.main-toolbar{gap:8px}.group-name-input{margin-bottom:8px}.search-dialog{max-width:520px;max-height:600px}.search-tabs{display:flex;gap:0;margin-bottom:12px;border-bottom:1px solid var(--border)}.search-tab{flex:1;padding:8px 16px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:color .2s,border-color .2s}.search-tab:hover{color:var(--text-primary)}.search-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.search-hint{text-align:center;color:var(--text-muted);font-size:13px;padding:16px 0}.search-message-item{align-items:flex-start}.search-message-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.search-message-top{display:flex;justify-content:space-between;align-items:center}.search-message-chat{font-weight:500;font-size:14px;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-message-time{font-size:12px;color:var(--text-muted);white-space:nowrap;margin-left:8px}.search-message-preview{font-size:13px;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-search-bar{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.chat-search-bar input{flex:1;padding:6px 12px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;outline:none}.chat-search-bar input:focus{border-color:var(--accent)}.btn-search-chat{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:16px;padding:4px 8px;border-radius:var(--radius);transition:color .2s}.btn-search-chat:hover{color:var(--text-primary)}.chat-search-results{max-height:200px;overflow-y:auto;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.chat-search-results .search-result-item{padding:8px 16px}.settings-page{display:flex;align-items:flex-start;justify-content:center;min-height:100vh;padding:40px 20px;background:var(--bg-primary);overflow-y:auto}.settings-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:600px;padding:24px}.settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.settings-header h2{font-size:20px;color:var(--accent)}.btn-back{color:var(--text-secondary);text-decoration:none;font-size:14px;padding:6px 12px;border-radius:var(--radius);transition:background .2s}.btn-back:hover{background:var(--bg-hover);color:var(--text-primary)}.settings-section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}.settings-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.settings-section h3{font-size:14px;color:var(--text-secondary);margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.settings-input{width:100%;padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;outline:none;margin-bottom:8px}.settings-input:focus,.settings-input:focus-visible{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}.settings-info{display:flex;flex-direction:column;gap:8px}.info-row{display:flex;justify-content:space-between;padding:8px 12px;background:var(--bg-tertiary);border-radius:var(--radius)}.info-label{color:var(--text-secondary);font-size:13px}.info-value{color:var(--text-primary);font-size:13px}.contacts-list{display:flex;flex-direction:column;gap:4px}.contact-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius);transition:background .15s}.contact-item:hover{background:var(--bg-hover)}.contact-item.active{background:var(--bg-active)}.contact-actions{display:flex;gap:6px;flex-shrink:0}.contact-avatar{width:36px;height:36px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--text-secondary);flex-shrink:0}.contact-info{flex:1;min-width:0}.contact-name{font-size:14px;display:flex;align-items:center;gap:6px}.contact-nickname{font-size:12px;color:var(--text-muted);font-weight:400}.contact-avatar-wrapper{position:relative;flex-shrink:0}.contact-avatar-wrapper .presence-dot-small{position:absolute;bottom:0;right:0}.contact-provider,.contact-presence{display:block;font-size:11px;color:var(--text-muted)}.btn-action{background:var(--accent);color:#fff;border:none;padding:6px 14px;border-radius:var(--radius);font-size:12px;cursor:pointer;transition:background .2s;flex-shrink:0}.btn-action:hover:not(:disabled){background:var(--accent-hover)}.btn-action:disabled{opacity:.5;cursor:not-allowed}.btn-action.btn-verify:disabled{background:var(--bg-tertiary);color:var(--text-muted);opacity:.6;cursor:not-allowed}.btn-add{background:#2ecc71}.btn-add:hover:not(:disabled){background:#27ae60}.btn-danger-sm{background:transparent;color:var(--danger);border:1px solid var(--danger)}.btn-danger-sm:hover:not(:disabled){background:#e74c3c1a}.btn-danger{width:100%;padding:10px;background:var(--danger);color:#fff;border:none;border-radius:var(--radius);font-size:14px;cursor:pointer;transition:opacity .2s}.btn-danger:hover{opacity:.9}.badge-default,.badge-active{font-size:10px;padding:2px 6px;border-radius:8px;font-weight:500}.badge-default{background:var(--bg-tertiary);color:var(--text-secondary)}.badge-active{background:#6c5ce733;color:var(--accent)}.create-persona-form{margin-top:12px;display:flex;flex-direction:column;gap:8px}.create-persona-form .settings-input{margin-bottom:0}.create-persona-form .section-hint{margin-top:-4px;margin-bottom:4px}.success-message{background:#2ecc711a;border:1px solid rgba(46,204,113,.3);color:#2ecc71;padding:8px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:8px}.btn-attach{background:none;border:none;font-size:20px;cursor:pointer;padding:6px;border-radius:50%;transition:background .2s;flex-shrink:0}.btn-attach:hover:not(:disabled){background:var(--bg-hover)}.btn-attach:disabled{opacity:.5}.voice-mic-btn{background:none!important;color:var(--text-secondary);border:none;padding:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);transition:color .2s,background .2s;flex-shrink:0}.voice-mic-btn:hover:not(:disabled){background:var(--bg-hover)!important;color:var(--text-primary)}.voice-mic-btn:disabled{opacity:.5;cursor:not-allowed}.voice-recording-bar{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--bg-secondary);border-top:1px solid var(--border)}.voice-recording-status{flex:1;display:flex;align-items:center;gap:8px}.voice-recording-indicator{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:voice-pulse 1.2s ease-in-out infinite;flex-shrink:0}@keyframes voice-pulse{0%,to{opacity:1}50%{opacity:.3}}.voice-timer{font-size:14px;font-variant-numeric:tabular-nums;color:var(--text-primary);font-weight:500}.voice-cancel-btn{background:none;border:none;color:var(--text-secondary);padding:8px;cursor:pointer;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;transition:color .2s,background .2s;flex-shrink:0}.voice-cancel-btn:hover:not(:disabled){background:var(--bg-hover);color:var(--danger)}.voice-cancel-btn:disabled{opacity:.5;cursor:not-allowed}.voice-send-btn{background:var(--accent);color:#fff;border:none;padding:8px 16px;border-radius:var(--radius);cursor:pointer;font-size:13px;font-weight:500;display:flex;align-items:center;justify-content:center;transition:background .2s;flex-shrink:0}.voice-send-btn:hover:not(:disabled){background:var(--accent-hover)}.voice-send-btn:disabled{opacity:.5;cursor:not-allowed}.message-image img{max-width:300px;max-height:300px;border-radius:var(--radius);display:block;cursor:pointer}.message-image img:hover{opacity:.9}.message-file{color:var(--text-primary);text-decoration:none;display:flex;align-items:center;gap:6px;font-size:13px;padding:4px 0}.message-file:hover{text-decoration:underline}.audio-player{display:flex;align-items:center;gap:10px;padding:6px 4px;min-width:220px;max-width:340px}.audio-play-btn{flex-shrink:0;width:36px;height:36px;border-radius:50%;border:none;background:var(--accent, #6c5ce7);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .15s}.audio-play-btn:hover{opacity:.85}.audio-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.audio-waveform{display:flex;align-items:flex-end;gap:1px;height:32px;cursor:pointer}.audio-waveform-bar{flex:1;min-width:2px;border-radius:1px;background:#ffffff40;transition:background .1s}.audio-waveform-bar.active{background:var(--accent, 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