:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--bg-hover: #2a2a2a;--bg-active: #333;--text-primary: #e0e0e0;--text-secondary: #999;--text-muted: #666;--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);height:100vh;overflow:hidden}#root{height:100vh}.auth-page{display:flex;align-items:center;justify-content:center;height:100vh;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}.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{border-color:var(--accent)}.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}.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{display:block;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.persona-select{display:block;background:transparent;border:none;color:var(--text-secondary);font-size:12px;cursor:pointer;padding:0;width:100%}.persona-select option{background:var(--bg-tertiary);color:var(--text-primary)}.btn-icon{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:6px;font-size:18px;border-radius:var(--radius);transition:background .2s}.btn-icon:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-list{flex:1;overflow-y:auto}.chat-item{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;transition:background .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)}.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}.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{border-color:var(--accent)}.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:500px;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}.dialog-body 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:12px}.dialog-body input:focus{border-color:var(--accent)}.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}.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}.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{border-color:var(--accent)}.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-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-provider{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-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;gap:8px}.create-persona-form .settings-input{margin-bottom:0}.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}.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}.message-meta{float:right;margin-left:8px;margin-top:4px;display:inline-flex;align-items:center;gap:3px}.read-receipt{font-size:12px;color:#fff6;letter-spacing:-2px;font-weight:600}.read-receipt.read{color:#2ecc71}.typing-bubble{align-self:flex-start;display:flex;align-items:center;gap:8px;padding:8px 14px;background:var(--msg-other);border-radius:var(--radius-lg);border-bottom-left-radius:4px}.typing-name{font-size:12px;color:var(--text-muted)}.typing-dots{display:flex;gap:3px;align-items:center}.typing-dots span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typingBounce 1.4s ease-in-out infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}.chat-avatar-wrapper{position:relative;flex-shrink:0}.presence-dot-small{position:absolute;bottom:0;right:0;width:10px;height:10px;border-radius:50%;background:var(--text-muted);border:2px solid var(--bg-secondary)}.presence-dot-small.online{background:#2ecc71;box-shadow:0 0 4px #2ecc7180}.chat-preview.typing{color:var(--accent);font-style:italic}.section-hint{font-size:13px;color:var(--text-muted);margin-bottom:12px}.unassigned-item{flex-wrap:wrap}.assign-buttons{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}.btn-assign{background:var(--bg-tertiary);color:var(--text-primary);font-size:11px;padding:4px 10px}.btn-assign:hover:not(:disabled){background:var(--accent)}.persona-edit-form{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}.persona-edit-form .settings-input{margin-bottom:0;padding:6px 10px;font-size:13px}.edit-actions{display:flex;gap:6px}.btn-edit{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-edit:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.requests-section{border-bottom:1px solid var(--border)}.requests-header{display:flex;align-items:center;gap:8px;padding:10px 16px;font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;background:var(--bg-tertiary)}.requests-badge{background:var(--danger);color:#fff;font-size:10px;padding:1px 6px;border-radius:8px;min-width:18px;text-align:center}.request-item{display:flex;align-items:center;gap:10px;padding:10px 16px;background:#e74c3c0d;border-bottom:1px solid var(--border)}.request-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}.request-sender{font-size:13px;font-weight:600;color:var(--text-primary)}.request-target{font-size:11px;color:var(--accent);font-style:italic}.request-item .chat-preview{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.request-actions{display:flex;gap:4px;flex-shrink:0}.btn-request{width:28px;height:28px;border-radius:50%;border:none;cursor:pointer;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:opacity .2s}.btn-request:hover{opacity:.8}.btn-accept{background:#2ecc71;color:#fff}.btn-decline{background:var(--danger);color:#fff}.avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover}.btn-back-chat{display:none}@media(max-width:640px){body,#root{height:100dvh}.app-layout{flex-direction:column;height:100vh;height:100dvh;position:relative}.app-layout>.sidebar{display:flex;width:100%;min-width:100%;height:100%;flex:1;border-right:none;overflow-y:auto;-webkit-overflow-scrolling:touch}.app-layout>.main-content{display:none}.app-layout.chat-open>.sidebar{display:none}.app-layout.chat-open>.main-content{display:block;height:100%}.app-layout.chat-open .main-toolbar{display:none}.app-layout.chat-open .chat-header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.app-layout.chat-open .message-input{position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--bg-secondary)}.app-layout.chat-open .messages-container{padding-top:56px;padding-bottom:56px;height:100dvh;overflow-y:auto;-webkit-overflow-scrolling:touch}.btn-back-chat{display:flex;align-items:center;justify-content:center;background:none;border:none;color:var(--text-primary);font-size:20px;padding:4px 8px;margin-right:8px;cursor:pointer;flex-shrink:0;min-width:36px;min-height:36px;border-radius:var(--radius);transition:background .2s}.btn-back-chat:hover{background:var(--bg-hover)}.sidebar-header{padding:8px 12px;position:sticky;top:0;z-index:10;background:var(--bg-secondary)}.persona-switcher{gap:6px}.persona-avatar{width:32px;height:32px;font-size:12px}.persona-name{font-size:13px}.btn-icon{padding:8px;font-size:18px;min-width:36px;min-height:36px}.chat-item{padding:12px}.chat-item-avatar{width:44px;height:44px;font-size:15px}.main-toolbar{padding:6px 10px;position:sticky;top:0;z-index:10;background:var(--bg-primary)}.btn-new-chat{padding:6px 12px;font-size:12px}.chat-header{padding:8px 12px}.chat-header h3{font-size:15px}.chat-members{font-size:11px}.messages-container{padding:8px 10px;gap:2px}.message{max-width:85%;font-size:14px}.message-bubble{padding:8px 12px;font-size:14px}.message-meta{font-size:10px}.message-image img{max-width:65vw;max-height:250px}.message-input{padding:8px 10px;padding-bottom:max(8px,env(safe-area-inset-bottom));gap:6px}.message-input input{padding:8px 12px;font-size:16px}.message-input button{padding:8px 14px;font-size:13px}.btn-attach{padding:8px;font-size:16px}.chat-view.empty{display:none}.dialog{max-width:calc(100vw - 32px);max-height:80vh;margin:16px}.dialog-header{padding:12px 16px}.dialog-header h3{font-size:15px}.dialog-body{padding:12px 16px}.auth-card{padding:24px 20px;max-width:calc(100vw - 32px);margin:16px;border-radius:var(--radius)}.auth-card h1{font-size:20px}.auth-subtitle{font-size:13px;margin-bottom:16px}.settings-page{padding:0;min-height:auto}.settings-card{max-width:100%;padding:16px;border:none;border-radius:0}.settings-header{margin-bottom:16px;position:sticky;top:0;z-index:10;background:var(--bg-secondary);padding:12px 0;border-bottom:1px solid var(--border)}.settings-header h2{font-size:18px}.btn-back{min-width:36px;min-height:36px;display:inline-flex;align-items:center}.presence-dot{width:8px;height:8px;margin-left:6px}.requests-section{padding:6px 12px}.btn-accept,.btn-decline{padding:4px 10px;font-size:12px}.typing-indicator{font-size:12px}::-webkit-scrollbar{width:3px}.contact-item{padding:10px 12px}.persona-list-item{padding:8px 12px}}