:root{--primary-color: #4a90e2;--primary-hover: #357abd;--primary-light: rgba(74, 144, 226, .1);--error-color: #e74c3c;--success-color: #27ae60;--warning-color: #f39c12;--bg-body: #f4f7f6;--bg-card: #ffffff;--bg-glass: rgba(255, 255, 255, .85);--bg-input: #fafafa;--bg-input-focus: #ffffff;--bg-hover: rgba(74, 144, 226, .08);--bg-overlay: rgba(0, 0, 0, .5);--bg-msg-in: #e9ecef;--bg-msg-out: #4a90e2;--text-msg-in: #2c3e50;--text-msg-out: #ffffff;--text-meta-in: #7f8c8d;--text-meta-out: rgba(255,255,255,.75);--text-primary: #2c3e50;--text-secondary: #7f8c8d;--text-muted: #95a5a6;--border-color: #e0e0e0;--border-light: rgba(0, 0, 0, .06);--shadow-soft: 0 4px 20px rgba(0, 0, 0, .04);--safe-area-inset-top: env(safe-area-inset-top, 0px);--safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);--safe-area-inset-left: env(safe-area-inset-left, 0px);--safe-area-inset-right: env(safe-area-inset-right, 0px);--shadow-medium: 0 8px 30px rgba(0, 0, 0, .08);--shadow-card: 0 2px 12px rgba(0, 0, 0, .06);--shadow-heavy: 0 20px 60px rgba(0, 0, 0, .3);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 50%;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-smooth: .35s cubic-bezier(.4, 0, .2, 1);--font-stack: "Inter", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}@media(prefers-color-scheme:dark){:root{--bg-body: #1a1d21;--bg-card: #242830;--bg-glass: rgba(36, 40, 48, .9);--bg-input: #2c3038;--bg-input-focus: #343a44;--bg-hover: rgba(74, 144, 226, .15);--bg-overlay: rgba(0, 0, 0, .7);--bg-msg-in: #2c3038;--bg-msg-out: #4a90e2;--text-msg-in: #e8eaed;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--text-muted: #6c7580;--border-color: #3c4048;--border-light: rgba(255, 255, 255, .06);--shadow-soft: 0 4px 20px rgba(0, 0, 0, .2);--shadow-medium: 0 8px 30px rgba(0, 0, 0, .3);--shadow-card: 0 2px 12px rgba(0, 0, 0, .15)}}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}html,body{height:100%;overflow:hidden}body{font-family:var(--font-stack);background-color:var(--bg-body);color:var(--text-primary);display:flex;line-height:1.5;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}input,textarea{-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;user-select:text}.icon{width:22px;height:22px;fill:currentColor;display:inline-flex;flex-shrink:0}.icon-sm{width:16px;height:16px}.icon-lg{width:28px;height:28px}.icon-xl{width:36px;height:36px}.desktop-nav{width:72px;background-color:var(--bg-card);border-right:1px solid var(--border-light);display:flex;flex-direction:column;align-items:center;padding:20px 0;gap:8px;flex-shrink:0;z-index:100}.nav-logo{width:44px;height:44px;background:var(--primary-color);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:16px}.nav-logo .icon{width:24px;height:24px;fill:#fff}.nav-item{width:48px;height:48px;border-radius:var(--radius-md);background:transparent;display:flex;justify-content:center;align-items:center;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);position:relative}.nav-item:before{content:"";position:absolute;left:-12px;width:4px;height:0;background:var(--primary-color);border-radius:0 2px 2px 0;transition:height var(--transition-fast)}.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background:var(--primary-color);color:#fff}.nav-item.active:before{height:20px}.nav-spacer{flex:1}.list-sidebar{width:340px;background-color:var(--bg-card);border-right:1px solid var(--border-light);display:flex;flex-direction:column;flex-shrink:0;position:relative;overflow:hidden}.tab-content{display:none;flex-direction:column;height:100%;position:relative;overflow:hidden}.tab-content.active{display:flex}.header{height:calc(55px + var(--safe-top));padding-top:var(--safe-top);display:flex;align-items:center;justify-content:space-between;padding-left:20px;padding-right:20px;background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);position:absolute;top:0;left:0;right:0;z-index:20}.header-title{font-weight:700;font-size:1.5rem;color:var(--text-primary)}.header-action{color:var(--primary-color);font-size:1rem;font-weight:600;cursor:pointer;border:none;background:none}.search-bar{padding:12px 16px;position:absolute;top:calc(55px + var(--safe-top));left:0;right:0;z-index:15}.search-wrapper{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:14px;color:var(--text-muted);pointer-events:none}.search-input{width:100%;padding:12px 14px 12px 36px;border-radius:var(--radius-md);border:1px solid transparent;background-color:var(--bg-input);color:var(--text-primary);font-size:.95rem;font-family:inherit;outline:none;transition:all var(--transition-fast)}.search-input::placeholder{color:var(--text-muted)}.search-input:focus{background-color:var(--bg-input-focus);border-color:var(--primary-color)}.scroll-content{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;padding-top:calc(55px + var(--safe-top) + 69px);padding-bottom:calc(80px + var(--safe-bottom));overscroll-behavior:contain}.scroll-content.no-search{padding-top:calc(55px + var(--safe-top))}.list-item{display:flex;align-items:start;padding:14px;background:var(--bg-card);cursor:pointer;transition:all var(--transition-fast);position:relative}.list-item:after{content:"";position:absolute;bottom:0;left:74px;right:0;height:1px;background:var(--border-light)}.list-item:last-child:after{display:none}.list-item:hover{background:var(--bg-hover)}.avatar{width:46px;height:46px;margin-right:14px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:var(--bg-card);font-weight:600;position:relative;overflow:hidden}.avatar img{width:100%;height:100%;border-radius:var(--radius-full);object-fit:cover}.avatar-online:after{content:"";position:absolute;bottom:0;right:0;width:12px;height:12px;background:var(--primary-color);border:2px solid var(--bg-body);border-radius:var(--radius-full)}.item-info{flex:1;overflow:hidden;min-width:0;display:flex;flex-direction:column;gap:6px;height:46px}.item-row-top{display:flex;justify-content:space-between;align-items:center;height:20px;gap:12px}.item-name{font-weight:600;font-size:1rem;color:var(--text-primary);white-space:nowrap;display:flex;gap:4px;align-items:center;overflow:hidden;text-overflow:ellipsis;line-height:1.2}.item-name svg{width:16px;height:16px;color:var(--primary-color)}.item-time{font-size:.8rem;color:var(--text-muted);flex-shrink:0;line-height:1}.item-row-bottom{display:flex;justify-content:space-between;align-items:center;height:16px;gap:12px}.item-preview{font-size:.9rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:4px;line-height:1}.item-preview.online{color:var(--primary-color)}.preview-check{flex-shrink:0;color:var(--primary-color)}.unread-badge{background:var(--primary-color);color:#fff;font-size:.7rem;font-weight:600;padding:2px 7px;border-radius:var(--radius-md);flex-shrink:0}.group-header{padding:10px 20px;background:var(--bg-body);color:var(--text-muted);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;position:sticky;top:0;z-index:5}.empty-list p{text-align:center;padding-top:20px;color:var(--text-muted)}.settings-section{background:var(--bg-card);margin:16px;border-radius:var(--radius-lg);overflow:hidden}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer}.settings-item:not(:last-child){border-bottom:1px solid var(--border-light)}.settings-item:hover{background:var(--bg-hover)}.settings-item-left{display:flex;align-items:center;gap:14px}.settings-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff}.settings-item-text{font-size:1rem;color:var(--text-primary)}.settings-item-arrow{color:var(--text-muted)}.profile-card{display:flex;align-items:center;padding:20px;background:var(--bg-card);margin:16px;border-radius:var(--radius-lg)}.profile-avatar-wrapper{position:relative;cursor:pointer}.profile-avatar-edit{position:absolute;bottom:0;right:0;width:24px;height:24px;background:var(--primary-color);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-card)}.profile-avatar-edit .icon{width:14px;height:14px;fill:#fff}.profile-avatar{width:68px;height:68px;font-size:1.75rem;margin:0}.profile-info{margin-left:14px;flex:1}.profile-name-view{display:flex;align-items:center;gap:8px;cursor:pointer}.profile-name-view:active{opacity:.7}.profile-name{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.profile-edit-icon{fill:var(--text-muted);opacity:.6}.profile-name-edit{display:flex;align-items:center;gap:8px}.profile-name-input{flex:1;padding:8px 12px;border:2px solid var(--primary-color);border-radius:var(--radius-md);background:var(--bg-input);color:var(--text-primary);font-size:1rem;font-weight:600;font-family:inherit;outline:none;min-width:0}.profile-name-save,.profile-name-cancel{width:36px;height:36px;border-radius:var(--radius-full);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.profile-name-save{background:var(--success-color)}.profile-name-save .icon{fill:#fff}.profile-name-cancel{background:var(--bg-input);border:1px solid var(--border-color)}.profile-name-cancel .icon{fill:var(--text-secondary)}.profile-name-save:active,.profile-name-cancel:active{transform:scale(.95)}.profile-username{font-size:.9rem;color:var(--text-secondary)}.main-content{flex:1;background-color:var(--bg-body);display:flex;flex-direction:column;position:relative;overflow:hidden}.chat-header{height:calc(55px + var(--safe-top));padding-top:var(--safe-top);border-bottom:1px solid var(--border-light);display:flex;align-items:center;padding-left:12px;padding-right:12px;background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:absolute;top:0;left:0;right:0;z-index:10}.back-button{display:none;align-items:center;color:var(--primary-color);margin-right:14px;cursor:pointer;background:none}.chat-header-avatar{width:42px;height:42px;font-size:1.1rem}.chat-header-info{display:flex;flex:1;gap:5px;flex-direction:column}.chat-header-name{font-weight:600;font-size:1.05rem;color:var(--text-primary);line-height:1}.chat-header-status{font-size:.8rem;color:var(--text-secondary);line-height:1;transition:color .2s}.chat-header-status.online{color:var(--primary-color)}.chat-header-actions{display:flex}.header-action-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:none;background:none;color:var(--primary-color);cursor:pointer}.chat-area{position:absolute;inset:0;padding:10px;padding-top:calc(55px + var(--safe-top) + 10px);padding-bottom:63px;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column;gap:8px;overscroll-behavior:contain}.date-separator{display:flex;align-items:center;justify-content:center}.date-separator-text{background:var(--bg-card);color:var(--text-muted);font-size:.75rem;font-weight:500;padding:7px 10px;border-radius:6px;text-transform:capitalize;line-height:1}.message-bubble{max-width:70%;padding:10px 14px;border-radius:var(--radius-lg);font-size:.95rem;line-height:1.45;position:relative;animation:messageSlide .3s ease}.msg-text{word-wrap:break-word}.msg-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;font-size:.7rem;margin-top:6px;opacity:.7}.msg-in{align-self:flex-start;background-color:var(--bg-msg-in);color:var(--text-msg-in);border-bottom-left-radius:6px}.msg-in .msg-meta{color:var(--text-meta-in)}.msg-out{align-self:flex-end;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-hover) 100%);color:var(--text-msg-out);border-bottom-right-radius:6px}.msg-out .msg-meta{color:var(--text-meta-out)}.msg-check{width:14px;height:14px}.msg-check.read{color:var(--text-meta-out)}.encryption-notice{display:flex;align-items:center;background:none;justify-content:center;padding:10px 16px;font-size:.75rem;color:var(--text-muted);gap:6px}.encryption-notice .icon{width:14px;height:14px}.chat-input-area{position:absolute;bottom:0;left:0;right:0;padding:10px;display:flex;align-items:center;gap:8px;z-index:10}.input-action-btn{width:43px;height:43px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--primary-color);cursor:pointer;transition:all var(--transition-fast);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);flex-shrink:0;background:var(--bg-glass);border:1px solid var(--border-light)}.input-action-btn:hover{border-color:var(--primary-color)}.input-action-btn:active{transform:scale(.95)}.chat-input{flex:1;padding:10px 12px;border-radius:24px;height:43px;border:1px solid var(--border-light);background:var(--bg-glass);color:var(--text-primary);font-size:.95rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-family:inherit;outline:none;transition:all var(--transition-fast);min-width:0}.chat-input-wrapper{flex:1;display:flex;position:relative;min-width:0}.chat-input-wrapper .chat-input{width:100%}.chat-input::placeholder{color:var(--text-muted)}.chat-input:focus{background-color:var(--bg-input-focus);border-color:var(--primary-color)}.chat-input:hover{border-color:var(--primary-color)}.send-mic-btn{width:43px;height:43px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0;border:1px solid var(--border-light);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:relative;overflow:hidden}.send-mic-btn.mic-mode{background:var(--bg-glass);color:var(--primary-color)}.send-mic-btn.send-mode{background:var(--primary-color);color:#fff;border:var(--primary-color)}.send-mic-btn:hover{border-color:var(--primary-color)}.send-mic-btn:active{transform:scale(.95)}.send-mic-btn .icon{position:absolute;transition:all var(--transition-fast)}.send-mic-btn .mic-icon{opacity:1;transform:scale(1)}.send-mic-btn .send-icon,.send-mic-btn.send-mode .mic-icon{opacity:0;transform:scale(.5)}.send-mic-btn.send-mode .send-icon{opacity:1;transform:scale(1)}.voice-recording-container{display:none;flex:1;align-items:center;gap:12px;padding:0 16px}.voice-recording-container.active{display:flex}.chat-input-wrapper.recording .chat-input,.input-action-btn.recording{display:none}.voice-recording-indicator{width:12px;height:12px;background:var(--error-color);border-radius:50%;animation:recording-pulse 1s ease-in-out infinite}@keyframes recording-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.voice-recording-timer{font-family:SF Mono,Menlo,monospace;font-size:1rem;color:var(--text-primary);min-width:50px}.voice-recording-waveform{flex:1;display:flex;align-items:center;justify-content:center;gap:3px;height:32px}.waveform-bar{width:3px;background:var(--primary-color);border-radius:2px;animation:waveform-animation .5s ease-in-out infinite}@keyframes waveform-animation{0%,to{height:8px}50%{height:24px}}.voice-cancel-hint{font-size:.85rem;color:var(--text-secondary);display:flex;align-items:center;gap:6px;white-space:nowrap}.voice-cancel-hint .icon{width:16px;height:16px}.send-mic-btn.recording{background:var(--error-color)!important;color:#fff!important;border-color:var(--error-color)!important;animation:recording-btn-pulse 1s ease-in-out infinite}@keyframes recording-btn-pulse{0%,to{box-shadow:0 0 #e74c3c66}50%{box-shadow:0 0 0 12px #e74c3c00}}.voice-message{display:flex;align-items:center;gap:10px;max-width:280px}.voice-play-btn{width:40px;height:40px;border-radius:50%;background:#fff3;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.msg-in .voice-play-btn{background:#0000001a;color:var(--text-primary)}.msg-out .voice-play-btn{background:#fff3;color:#fff}.voice-play-btn:active{transform:scale(.95)}.voice-play-btn .icon{width:20px;height:20px}.voice-play-btn .pause-icon,.voice-play-btn.playing .play-icon{display:none}.voice-play-btn.playing .pause-icon{display:block}.voice-waveform-container{flex:1;display:flex;flex-direction:column;gap:4px}.voice-waveform{display:flex;align-items:center;gap:2px;height:24px}.voice-waveform-bar{width:3px;border-radius:2px;transition:background var(--transition-fast)}.msg-out .voice-waveform-bar{background:#fff6}.msg-out .voice-waveform-bar.played{background:#ffffffe6}.msg-in .voice-waveform-bar{background:#0003}.msg-in .voice-waveform-bar.played{background:var(--primary-color)}.voice-duration{font-size:.75rem;opacity:.8}.msg-out .voice-duration{color:#fffc}.msg-in .voice-duration{color:var(--text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);text-align:center;padding:40px}.empty-icon{width:80px;height:80px;background:var(--bg-card);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;margin-bottom:24px}.empty-icon .icon{width:40px;height:40px;color:var(--text-muted)}.empty-title{font-weight:600;font-size:1.25rem;color:var(--text-primary);margin-bottom:8px}.empty-text{font-size:.95rem;color:var(--text-secondary)}.modal-overlay{position:fixed;inset:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;padding:var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left)}.modal-overlay.active{opacity:1;visibility:visible}.context-menu{position:fixed;z-index:9999;min-width:180px;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:0 4px 24px #00000026,0 0 0 1px var(--border-light);padding:6px 0;display:none;animation:contextMenuFadeIn .15s ease-out}.context-menu.active{display:block}@keyframes contextMenuFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.context-menu-item{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;transition:background var(--transition-fast);color:var(--text-primary);font-size:.95rem}.context-menu-item:hover{background:var(--bg-hover)}.context-menu-item:active{background:var(--primary-light)}.context-menu-item .icon{width:20px;height:20px;flex-shrink:0}.context-menu-item.danger{color:var(--error-color)}.context-menu-item.danger .icon{fill:var(--error-color)}.context-menu-separator{height:1px;background:var(--border-light);margin:6px 0}.context-menu-overlay{position:fixed;inset:0;z-index:9998;display:none}.context-menu-overlay.active{display:block}.call-screen{position:absolute;inset:0;z-index:50;display:none;flex-direction:column;background:var(--bg-body);padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}.call-screen.active{display:flex}.incoming-call-modal{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;text-align:center;max-width:320px;width:90%}.incoming-call-avatar{width:80px;height:80px;margin:0 auto 16px;border-radius:var(--radius-full);font-size:2rem;animation:pulse 2s infinite}@keyframes pulse{0%,to{box-shadow:0 0 #4a90e266}50%{box-shadow:0 0 0 15px #4a90e200}}.incoming-call-name{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}.incoming-call-type{font-size:.9rem;color:var(--text-secondary);margin-bottom:32px}.incoming-call-actions{display:flex;justify-content:center;gap:24px}.call-action-btn{width:64px;height:64px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);border:none}.call-action-btn .icon{width:28px;height:28px}.call-action-btn.accept{background:var(--success-color);color:#fff}.call-action-btn.decline{background:var(--error-color);color:#fff}.call-action-btn:active{transform:scale(.95)}.audio-call-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center}.audio-call-info{position:absolute;top:15px;left:0;right:0;text-align:center;z-index:10}.audio-call-name{font-size:1.1rem;font-weight:600;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.5)}.audio-call-timer{font-size:.9rem;color:var(--success-color);font-family:SF Mono,monospace;margin-top:4px}.audio-call-avatars{display:flex;align-items:center;justify-content:center;gap:24px}.audio-avatar-wrapper{display:flex;flex-direction:column;align-items:center;gap:12px}.active-call-avatar{width:150px;height:150px;border-radius:var(--radius-full);margin:0;font-size:3rem}.active-call-avatar.talking{box-shadow:0 0 0 3px var(--success-color)}.video-call-content{flex:1;position:relative;background:#000;overflow:hidden;display:flex;flex-direction:column}.video-remote{flex:1;display:flex;align-items:center;justify-content:center;position:relative}.video-remote video{width:100%;height:100%;object-fit:cover;display:none}.video-remote video.active{display:block}.video-remote-placeholder{display:flex;flex-direction:column;align-items:center;gap:16px}.video-remote-placeholder.hidden{display:none}.video-self{position:absolute;bottom:100px;right:16px;width:100px;height:140px;border-radius:var(--radius-lg);border:2px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;overflow:hidden;background:#1a1a1a}.video-self video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.video-call-info{position:absolute;top:15px;left:0;right:0;text-align:center;z-index:10}.video-call-name{font-size:1.1rem;font-weight:600;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.5)}.video-call-status,.audio-call-status{font-size:.9rem;color:#ffffffb3;margin-top:4px}.video-call-status.connected,.audio-call-status.connected{color:var(--success-color)}.video-call-timer{font-size:.9rem;color:var(--success-color);font-family:SF Mono,monospace;margin-top:4px}.call-controls-bar{padding:20px;padding-bottom:calc(20px + var(--safe-bottom));background:none;display:flex;justify-content:center;gap:20px}.active-call-actions{display:flex;justify-content:center;gap:16px;padding-bottom:20px;background:none}.call-control-btn{width:56px;height:56px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);border:none;background:var(--bg-card);color:var(--text-primary)}.call-control-btn .icon{width:24px;height:24px}.call-control-btn:active{transform:scale(.95)}.call-control-btn.active,.call-control-btn.end-call{background:var(--error-color);color:#e8eaed}.call-control-btn.end-call .icon{width:28px;height:28px}.pwa-standalone .header,.pwa-standalone .mobile-tab-bar,.pwa-standalone .call-control-btn,.pwa-standalone .header-action,.pwa-standalone .list-item{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.pwa-standalone .list-item:active,.pwa-standalone .mobile-tab:active,.pwa-standalone .header-action:active{opacity:.7;transition:opacity .1s}.pwa-standalone{overscroll-behavior:none;-webkit-overflow-scrolling:touch}.mobile-tab-bar{display:none}@media(max-width:768px){.desktop-nav{display:none}.list-sidebar{width:100%;border-right:none;border-left:none;background:var(--bg-body)}.list-item{background:none}.header,.search-input{background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.search-icon{color:var(--text-muted)}.main-content{display:none;position:fixed;top:0;left:0;width:100%;height:100%;z-index:200}.main-content.open{display:block}.back-button{display:flex}.mobile-tab-bar{display:block;position:fixed;left:50%;bottom:10px;transform:translate(-50%);width:100%;max-width:346px;padding-right:8px;padding-left:8px;background:transparent;z-index:150}.mobile-tab-container{background:var(--bg-glass);padding:4px;border-radius:100px;border:1px solid var(--border-light);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;overflow-x:auto;scrollbar-width:none}.mobile-tab-container::-webkit-scrollbar{display:none}.mobile-tab{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;padding:5px 15px;border-radius:100px;width:80px;gap:3px;color:#dcdcdc;font-size:10px;font-weight:400;background:transparent;border:none;position:relative}.mobile-tab svg{width:26px;height:26px;stroke-width:1.5}.mobile-tab.active{color:var(--primary-color);background:var(--border-light)}}#login-screen{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--bg-body);z-index:9999}#login-screen.hidden{display:none}.login-container{width:100%;max-width:400px;padding:20px}.login-card{border-radius:var(--radius-xl);padding:40px 32px}.login-logo{width:72px;height:72px;background:var(--primary-color);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 24px}.login-logo svg{width:40px;height:40px;fill:#fff}.login-title{font-size:1.75rem;font-weight:700;text-align:center;margin-bottom:8px}.login-subtitle{font-size:.95rem;color:var(--text-secondary);text-align:center;margin-bottom:32px}.login-form{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.form-input{width:100%;padding:14px 16px;border-radius:var(--radius-md);border:2px solid var(--border-color);background-color:var(--bg-input);color:var(--text-primary);font-size:1rem;font-family:inherit;outline:none;transition:all var(--transition-fast)}.form-input::placeholder{color:var(--text-muted)}.form-input:focus{background-color:var(--bg-input-focus);border-color:var(--primary-color)}.login-btn{width:100%;padding:14px;border-radius:var(--radius-md);border:none;background:var(--primary-color);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);margin-top:8px}.login-btn:hover{background:var(--primary-hover)}.login-btn:disabled{opacity:.7;cursor:not-allowed}.login-error{background:#e74c3c1a;border:1px solid var(--error-color);color:var(--error-color);padding:12px;border-radius:var(--radius-md);font-size:.9rem;text-align:center;display:none}.login-error.show{display:block}.login-footer{margin-top:24px;text-align:center;font-size:.85rem;color:var(--text-muted)}#app-wrapper{display:none;width:100%;height:100%}#app-wrapper.visible{display:flex}.logout-btn{color:var(--error-color)!important}#loading-screen{display:none;position:fixed;inset:0;background:var(--bg-body);z-index:10000;flex-direction:column;align-items:center;justify-content:center;gap:24px}#loading-screen.visible{display:flex}.loading-logo{width:80px;height:80px;animation:loadingPulse 2s ease-in-out infinite}.loading-logo svg{width:100%;height:100%;fill:var(--primary-color)}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:loadingSpin 1s linear infinite}.loading-text{font-size:1rem;color:var(--text-secondary);text-align:center}.loading-status{font-size:.85rem;color:var(--text-muted);text-align:center;min-height:20px}@keyframes loadingSpin{to{transform:rotate(360deg)}}@keyframes loadingPulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.8}}.loading-progress{width:200px;height:4px;background:var(--border-color);border-radius:2px;overflow:hidden}.loading-progress-bar{height:100%;background:var(--primary-color);border-radius:2px;width:0%;transition:width .3s ease}