.settings-menu{position:relative}.settings-button svg{transition:transform .3s cubic-bezier(.4,0,.2,1)}.settings-button:hover svg{transform:rotate(90deg)}.settings-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:998;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.settings-dropdown{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:16px;padding:2rem;min-width:320px;max-width:calc(100vw - 2rem);box-shadow:0 20px 60px var(--shadow);z-index:1001;margin:0!important}@media (max-width: 768px){.settings-dropdown{min-width:280px;padding:1.5rem}}@media (max-width: 480px){.settings-dropdown{min-width:calc(100vw - 2rem)}}.settings-dropdown h3{margin:0 0 1.5rem;font-size:1.1rem;font-weight:600;color:var(--text-primary)}.settings-group{margin-bottom:1.5rem}.settings-group:last-child{margin-bottom:0}.settings-group label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.75rem}.settings-buttons{display:flex;gap:.5rem}.settings-option{flex:1;padding:.625rem 1rem;border:2px solid var(--border-color);background:var(--bg-secondary);border-radius:8px;font-size:.875rem;font-weight:500;color:var(--text-primary);cursor:pointer;transition:all .2s ease}.settings-option:hover{border-color:var(--primary-color);background:var(--hover-bg)}.settings-option.active{border-color:var(--primary-color);background:var(--primary-color);color:#fff}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;min-height:100dvh;background:var(--bg-tertiary);padding:20px;position:relative}.auth-settings{position:fixed;top:1.5rem;right:1.5rem;z-index:1000}.auth-card{background:var(--bg-primary);border-radius:16px;padding:3rem 2.5rem;width:100%;max-width:420px;box-shadow:0 20px 60px var(--shadow);border:1px solid var(--border-color)}.auth-logo{text-align:center;font-size:4rem;margin-bottom:1.5rem;opacity:.9}.auth-header{text-align:center;margin-bottom:2rem}.auth-header h1{font-size:1.75rem;margin-bottom:.5rem;color:var(--text-primary);font-weight:700}.auth-header p{color:var(--text-secondary);font-size:.9375rem}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.875rem;font-weight:600;color:var(--text-primary)}.form-group input{padding:.875rem 1rem;border:1px solid var(--border-color);border-radius:10px;font-size:.9375rem;transition:all .2s;background:var(--input-bg);color:var(--text-primary)}.form-group input::placeholder{color:var(--text-secondary)}.form-group input:focus{outline:none;border-color:var(--primary-color);background:var(--bg-primary);box-shadow:0 0 0 3px #0088cc1a}.error-message{padding:.875rem;background:#cc33331a;color:#c33;border-radius:10px;font-size:.875rem;text-align:center;border:1px solid rgba(204,51,51,.2)}[data-theme=dark] .error-message{background:#ef444426;color:#f87171;border-color:#ef44444d}.btn-primary{padding:.875rem 1.5rem;background:var(--primary-color);color:#fff;border-radius:10px;font-size:1rem;font-weight:600;transition:all .2s;margin-top:.5rem}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #0088cc4d}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.auth-footer{margin-top:1.5rem;text-align:center;font-size:.9375rem;color:var(--text-secondary)}.auth-footer a{color:var(--primary-color);font-weight:600;text-decoration:none;transition:color .2s}.auth-footer a:hover{color:var(--primary-hover);text-decoration:underline}@media (max-width: 480px){.auth-card{padding:2rem 1.5rem}.auth-logo{font-size:3rem}.auth-header h1{font-size:1.5rem}.auth-settings{top:1rem;right:1rem}}.guide-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:1001;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.guide-modal{background:var(--bg-primary);border-radius:20px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d;border:1px solid var(--border-color);animation:guideSlideIn .3s cubic-bezier(.4,0,.2,1)}@keyframes guideSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.guide-header{display:flex;justify-content:space-between;align-items:center;padding:24px 28px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary);border-radius:20px 20px 0 0}.guide-header h2{font-size:22px;font-weight:700;color:var(--text-primary);margin:0;letter-spacing:-.5px}.guide-close{width:36px;height:36px;border-radius:50%;background:transparent;font-size:28px;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:all .2s;border:none}.guide-close:hover{background:var(--hover-bg);transform:rotate(90deg)}.guide-content{padding:28px}.guide-section{margin-bottom:28px}.guide-section:last-child{margin-bottom:0}.guide-section h3{font-size:18px;font-weight:600;color:var(--text-primary);margin:0 0 16px}.guide-steps{list-style:none;counter-reset:step-counter;padding:0;margin:0}.guide-steps li{counter-increment:step-counter;position:relative;padding-left:40px;margin-bottom:16px;color:var(--text-primary);line-height:1.6;font-size:15px}.guide-steps li:before{content:counter(step-counter);position:absolute;left:0;top:0;width:28px;height:28px;background:var(--primary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}.guide-tips{list-style:none;padding:0;margin:0}.guide-tips li{position:relative;padding-left:32px;margin-bottom:12px;color:var(--text-secondary);line-height:1.6;font-size:14px}.guide-tips li:before{content:"•";position:absolute;left:12px;color:var(--primary-color);font-size:20px;font-weight:700}.guide-footer{padding:20px 28px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;background:var(--bg-secondary);border-radius:0 0 20px 20px}.guide-footer .btn-primary{padding:12px 32px;font-size:15px}[data-theme=dark] .guide-overlay{background:#000c}[data-theme=dark] .guide-modal{box-shadow:0 20px 60px #000c}@media (max-width: 640px){.guide-modal{max-width:100%;max-height:100vh;border-radius:0}.guide-header,.guide-footer{border-radius:0}.guide-header{padding:20px}.guide-header h2{font-size:20px}.guide-content{padding:20px}.guide-footer{padding:16px 20px}.guide-steps li{padding-left:36px;font-size:14px}.guide-steps li:before{width:26px;height:26px;font-size:12px}}@media (max-width: 480px){.guide-overlay{padding:0}.guide-steps li{margin-bottom:14px}.guide-tips li{margin-bottom:10px;font-size:13px}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.modal-content{background:var(--bg-primary);border-radius:16px;width:100%;max-width:500px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px var(--shadow);border:1px solid var(--border-color);color:var(--text-primary)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border-color)}.modal-header h2{font-size:20px;font-weight:600;color:var(--text-primary)}.modal-close{width:32px;height:32px;border-radius:50%;background:transparent;font-size:28px;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:background .2s}.modal-close:hover{background:var(--hover-bg)}.modal-body{padding:24px}.modal-body form{display:flex;flex-direction:column;gap:20px}.form-divider{display:flex;align-items:center;justify-content:center;margin:10px 0;color:var(--text-secondary);font-weight:500;font-size:14px}.form-divider:before,.form-divider:after{content:"";flex:1;height:1px;background:var(--border-color);margin:0 10px}.input-hint{font-size:13px;color:var(--text-secondary);margin-top:4px}.modal-actions{display:flex;gap:12px;justify-content:flex-end}.btn-secondary{padding:10px 20px;background:var(--input-bg);color:var(--text-primary);border-radius:8px;font-size:14px;font-weight:500;transition:background .2s}.btn-secondary:hover{background:var(--hover-bg)}[data-theme=dark] .modal-overlay{background:#000000bf}[data-theme=dark] .modal-content{box-shadow:0 20px 60px #000c}[data-theme=dark] .btn-secondary:hover{background:var(--bg-tertiary)}@media (max-width: 480px){.modal-content{max-width:100%;border-radius:0}.modal-overlay{padding:0}}.auth-methods{padding:1rem}.auth-methods h3{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:1.5rem;text-align:center}.method-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem}.method-card-wrapper{position:relative;display:flex;flex-direction:column;gap:.5rem}.method-help-btn{position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:50%;background:#0088cc1a;border:1px solid rgba(0,136,204,.2);color:var(--primary-color);font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .2s cubic-bezier(.4,0,.2,1);cursor:pointer;z-index:2;opacity:0}.method-card-wrapper:hover .method-help-btn{opacity:1}.method-help-btn:hover{background:var(--primary-color);color:#fff;transform:scale(1.1);box-shadow:0 2px 8px #0088cc4d}[data-theme=dark] .method-help-btn{background:#08c3;border-color:#0088cc4d}.method-card{background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:14px;padding:1.5rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-align:center;display:flex;flex-direction:column;align-items:center;gap:.75rem}.method-card:hover{border-color:var(--primary-color);background:var(--hover-bg);transform:translateY(-3px);box-shadow:0 6px 20px #08c3}.method-icon{font-size:2.5rem;margin-bottom:.5rem;filter:grayscale(0);transition:transform .2s}.method-card:hover .method-icon{transform:scale(1.1)}.method-title{font-size:1rem;font-weight:600;color:var(--text-primary)}.method-description{font-size:.875rem;color:var(--text-secondary);line-height:1.4}.modal-actions{display:flex;gap:1rem;margin-top:1.5rem;justify-content:flex-end}.modal-actions .btn-secondary,.modal-actions .btn-primary{flex:0 0 auto;min-width:100px}textarea{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:10px;font-family:Monaco,Menlo,Courier New,monospace;font-size:.875rem;resize:vertical;transition:all .2s ease;background:var(--input-bg);color:var(--text-primary)}textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px #0088cc1a;background:var(--bg-primary)}input[type=file]{padding:.5rem;border:2px dashed var(--border-color);border-radius:10px;cursor:pointer;transition:all .2s ease;background:var(--input-bg);color:var(--text-primary)}input[type=file]:hover{border-color:var(--primary-color);background:var(--hover-bg)}[data-theme=dark] .method-card:hover{box-shadow:0 6px 20px #0088cc4d}[data-theme=dark] textarea:focus{box-shadow:0 0 0 4px #0088cc26}@media (max-width: 768px){.method-cards{grid-template-columns:1fr}.modal-actions{flex-direction:column-reverse}.modal-actions .btn-secondary,.modal-actions .btn-primary{width:100%}}.join-chat-modal{max-width:500px;width:100%}.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer;-webkit-user-select:none;user-select:none;font-weight:500}.checkbox-label input[type=checkbox]{width:20px;height:20px;cursor:pointer;accent-color:var(--primary-color)}.checkbox-label span{flex:1}.join-results{margin-top:1.5rem;padding:1rem;background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color)}.join-results h4{margin:0 0 1rem;font-size:14px;font-weight:600;color:var(--text-primary)}.result-item{display:flex;align-items:center;gap:10px;padding:8px 12px;margin-bottom:8px;border-radius:8px;font-size:14px}.result-item:last-child{margin-bottom:0}.result-item.success{background:#43e97b1a;border:1px solid rgba(67,233,123,.3)}.result-item.error{background:#f5576c1a;border:1px solid rgba(245,87,108,.3)}.result-icon{font-size:18px;flex-shrink:0}.result-account{flex:1;font-weight:500;color:var(--text-primary)}.result-error{font-size:12px;color:var(--error-color);font-style:italic}.error-message{padding:12px 16px;background:#f5576c1a;border:1px solid rgba(245,87,108,.3);border-radius:8px;color:var(--error-color);font-size:14px;margin-top:1rem}[data-theme=dark] .join-results{background:var(--bg-tertiary)}[data-theme=dark] .result-item.success{background:#43e97b26}[data-theme=dark] .result-item.error{background:#f5576c26}@media (max-width: 640px){.join-chat-modal{max-width:100%;margin:0;border-radius:0}.result-account{font-size:13px}.result-error{font-size:11px}}.dashboard{display:flex;height:100vh;height:100dvh;overflow:hidden;background:var(--bg-primary);position:relative}.sidebar{width:340px;background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:width .3s cubic-bezier(.4,0,.2,1);position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.sidebar:before{content:"";position:absolute;top:0;left:0;right:0;height:100%;background:linear-gradient(180deg,rgba(0,136,204,.02) 0%,transparent 100%);pointer-events:none}.sidebar-header{padding:20px 24px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background:var(--bg-secondary);position:relative;z-index:1}.sidebar-header h2{font-size:22px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px;margin:0}.sidebar-actions{display:flex;gap:6px;align-items:center}.btn-icon{width:38px;height:38px;border-radius:12px;background:var(--input-bg);border:1px solid transparent;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-primary);transition:all .2s cubic-bezier(.4,0,.2,1);cursor:pointer;position:relative}.btn-icon:hover{background:var(--hover-bg);border-color:var(--border-color);transform:translateY(-1px);box-shadow:0 4px 12px #00000014}.btn-icon:active{transform:translateY(0)}.btn-icon svg{transition:transform .2s cubic-bezier(.4,0,.2,1)}.btn-icon:hover svg{transform:scale(1.1)}.btn-add:hover{background:#0088cc1a;color:var(--primary-color);border-color:#08c3}.btn-logout:hover{background:#ef44441a;color:#ef4444;border-color:#ef444433}.accounts-list{flex:1;overflow-y:auto;padding:12px 8px;scroll-behavior:smooth}.accounts-list::-webkit-scrollbar{width:6px}.accounts-list::-webkit-scrollbar-track{background:transparent}.accounts-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.accounts-list::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.account-item{display:flex;align-items:center;padding:14px 16px;margin:0 8px 8px;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);gap:14px;position:relative;border-radius:16px;background:transparent}.account-item:hover{background:var(--hover-bg);transform:translate(4px)}.account-item.active{background:var(--hover-bg);box-shadow:0 2px 8px #0088cc1a}.account-item.active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:32px;background:linear-gradient(180deg,var(--primary-color),var(--primary-hover));border-radius:0 4px 4px 0}.account-avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px;flex-shrink:0;box-shadow:0 4px 16px #0088cc40;transition:transform .2s cubic-bezier(.4,0,.2,1);position:relative}.account-item:hover .account-avatar{transform:scale(1.05)}.avatar-color-0{background:linear-gradient(135deg,#667eea,#764ba2)!important}.avatar-color-1{background:linear-gradient(135deg,#f093fb,#f5576c)!important}.avatar-color-2{background:linear-gradient(135deg,#4facfe,#00f2fe)!important}.avatar-color-3{background:linear-gradient(135deg,#43e97b,#38f9d7)!important}.avatar-color-4{background:linear-gradient(135deg,#fa709a,#fee140)!important}.avatar-img{width:100%;height:100%;object-fit:cover;border-radius:inherit}.account-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}.account-name{font-weight:600;font-size:15px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.2px}.account-phone{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.account-status{margin-top:2px}.status-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:8px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;transition:all .2s}.status-badge.active{background:#10b98126;color:#10b981;border:1px solid rgba(16,185,129,.2)}[data-theme=dark] .status-badge.active{background:#10b98126;color:#34d399;border:1px solid rgba(16,185,129,.25)}.status-badge.inactive{background:#ef444426;color:#ef4444;border:1px solid rgba(239,68,68,.2)}[data-theme=dark] .status-badge.inactive{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.25)}.btn-delete{width:32px;height:32px;border-radius:10px;background:transparent;color:var(--text-secondary);font-size:22px;line-height:1;opacity:0;transition:all .25s cubic-bezier(.4,0,.2,1);border:1px solid transparent;display:flex;align-items:center;justify-content:center}.btn-delete svg{transition:transform .2s cubic-bezier(.4,0,.2,1)}.account-item:hover .btn-delete{opacity:1}.btn-delete:hover{background:#ef44441a;color:#ef4444;border-color:#ef444433;transform:scale(1.1)}.btn-delete:hover svg{transform:scale(1.15) rotate(-5deg)}.btn-delete:active{transform:scale(.95)}.main-content{flex:1;display:flex;flex-direction:column;background:var(--bg-primary);position:relative}.chats-header{padding:20px 28px;border-bottom:1px solid var(--border-color);background:var(--bg-primary);display:flex;align-items:center;gap:20px;flex-wrap:wrap;position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.chats-header:before{content:"";position:absolute;top:0;left:0;right:0;height:100%;background:linear-gradient(180deg,rgba(0,136,204,.01) 0%,transparent 100%);pointer-events:none}.chats-header h2{margin:0;font-size:22px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}.search-box{flex:1;min-width:240px;max-width:500px;position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:16px;color:var(--text-secondary);pointer-events:none;z-index:1;transition:color .2s}.search-input{width:100%;padding:12px 18px 12px 44px;border:1.5px solid var(--border-color);border-radius:14px;background:var(--input-bg);color:var(--text-primary);font-size:14px;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1)}.search-input::placeholder{color:var(--text-secondary);font-weight:400}.search-input:focus{outline:none;border-color:var(--primary-color);background:var(--bg-primary);box-shadow:0 0 0 4px #0088cc14;transform:translateY(-1px)}.search-input:focus~.search-icon,.search-box:focus-within .search-icon{color:var(--primary-color)}.chats-list{flex:1;overflow-y:auto;scroll-behavior:smooth}.chats-list::-webkit-scrollbar{width:8px}.chats-list::-webkit-scrollbar-track{background:transparent}.chats-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.chats-list::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.chat-item{display:flex;align-items:center;padding:16px 24px;margin:4px 12px;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);gap:16px;border-radius:14px;background:transparent;position:relative}.chat-item:hover{background:var(--hover-bg);transform:translate(4px);box-shadow:0 2px 8px #0000000a}.chat-avatar{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;flex-shrink:0;box-shadow:0 4px 16px #667eea4d;transition:transform .2s cubic-bezier(.4,0,.2,1)}.chat-item:hover .chat-avatar{transform:scale(1.05)}.chat-info{flex:1;min-width:0}.chat-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.chat-name{font-weight:600;font-size:15px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.2px}.chat-date{font-size:12px;color:var(--text-secondary);flex-shrink:0;margin-left:12px;font-weight:500}.chat-message-row{display:flex;justify-content:space-between;align-items:center;gap:8px}.chat-last-message{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500;line-height:1.4}.chat-unread-badge{background:var(--primary-color);color:#fff;border-radius:10px;padding:3px 9px;font-size:11px;font-weight:700;flex-shrink:0;margin-left:8px;box-shadow:0 2px 8px #0088cc4d;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.85}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.account-item,.chat-item{animation:fadeIn .3s ease-out}*{transition:background-color .2s ease,color .2s ease,border-color .2s ease}[data-theme=dark] .sidebar:before{background:linear-gradient(180deg,rgba(0,136,204,.05) 0%,transparent 100%)}[data-theme=dark] .chats-header:before{background:linear-gradient(180deg,rgba(0,136,204,.03) 0%,transparent 100%)}[data-theme=dark] .account-avatar,[data-theme=dark] .chat-avatar{box-shadow:0 4px 16px #08c6}[data-theme=dark] .chat-item:hover{box-shadow:0 2px 8px #0000004d}[data-theme=dark] .account-item.active{box-shadow:0 2px 8px #08c3}[data-theme=dark] .btn-icon:hover{box-shadow:0 4px 12px #0000004d}[data-theme=dark] .search-input:focus{box-shadow:0 0 0 4px #0088cc26}[data-theme=dark] .chat-unread-badge{box-shadow:0 2px 8px 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