:root{--bg-primary: #212121;--bg-secondary: #181818;--bg-sidebar: #212121;--bg-chat: #0F0F0F;--bg-input: #212121;--bg-hover: #2C2C2C;--bg-active: #8774E1;--bg-active-faded: rgba(135, 116, 225, .15);--msg-out-bg: #766AC8;--msg-in-bg: #212121;--msg-out-text: #fff;--msg-in-text: #fff;--accent: #8774E1;--accent-hover: #9B8CE8;--text-primary: #ffffff;--text-secondary: #AAAAAA;--text-tertiary: #707579;--border: #303030;--border-light: #3B3B3D;--online: #0AC630;--danger: #E53935;--unread-bg: #8774E1;--radius-msg: 12px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 50%;--header-height: 56px;--sidebar-width: 350px;--transition: .2s ease;--shadow: 0 2px 8px rgba(0,0,0,.3)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;overflow:hidden}body{font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;transition:background var(--transition),color var(--transition)}.icon-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.icon-btn:disabled{opacity:.3;cursor:default}.app{display:flex;height:100%;justify-content:center;align-items:center}.app.authenticated{justify-content:stretch;align-items:stretch}.app.loading-screen{background:var(--bg-chat)}.loading-screen .loading-content{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--text-secondary)}.loading-logo{animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.sidebar-container{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;position:relative}.main-container{flex:1;display:flex;flex-direction:column;background:var(--bg-chat);overflow:hidden}.no-chat{display:flex;align-items:center;justify-content:center;height:100%}.no-chat-content{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--text-secondary);font-size:15px}.login-screen{display:flex;align-items:center;justify-content:center;width:100%;height:100%;background:var(--bg-chat)}.login-card{background:var(--bg-primary);padding:40px 36px 32px;border-radius:var(--radius-lg);width:360px;text-align:center;animation:fadeInUp .3s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-icon{margin-bottom:24px}.login-card h1{font-size:22px;font-weight:500;margin-bottom:8px}.login-subtitle{font-size:14px;color:var(--text-secondary);margin-bottom:24px;line-height:1.5}.login-field{margin-bottom:16px}.login-field input{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:var(--radius-md);background:transparent;color:var(--text-primary);font-size:16px;outline:none;transition:border-color var(--transition)}.login-field input:focus{border-color:var(--accent)}.login-field input::placeholder{color:var(--text-tertiary)}.login-btn{width:100%;padding:14px;border:none;border-radius:var(--radius-md);font-size:15px;font-weight:500;cursor:pointer;transition:all var(--transition)}.login-btn.primary{background:var(--accent);color:#fff;margin-bottom:12px}.login-btn.primary:hover{background:var(--accent-hover)}.login-btn.primary:disabled{opacity:.5;cursor:not-allowed}.login-btn.link{background:transparent;color:var(--accent);font-weight:400;font-size:14px}.login-btn.link:hover{text-decoration:underline}.login-error{color:var(--danger);font-size:13px;margin-top:12px}.qr-steps{text-align:left;margin-bottom:20px}.qr-steps ol{padding-left:20px;font-size:14px;color:var(--text-secondary)}.qr-steps li{margin-bottom:6px}.qr-container{display:flex;justify-content:center;margin-bottom:24px}.qr-canvas{border-radius:var(--radius-md)}.qr-loading{padding:60px;color:var(--text-secondary)}.sidebar{display:flex;flex-direction:column;height:100%}.sidebar-header{display:flex;align-items:center;gap:4px;padding:8px 8px 8px 4px;height:var(--header-height);flex-shrink:0}.sidebar-header-left{position:relative;display:flex}.sidebar-search{flex:1;display:flex;align-items:center;gap:8px;background:var(--bg-secondary);border-radius:22px;padding:0 12px;height:40px}.sidebar-search .search-icon{flex-shrink:0;color:var(--text-tertiary)}.sidebar-search input{flex:1;border:none;outline:none;background:transparent;color:var(--text-primary);font-size:14px}.sidebar-search input::placeholder{color:var(--text-tertiary)}.search-clear{background:none;border:none;color:var(--text-tertiary);cursor:pointer;display:flex;padding:2px}.hamburger-menu{position:absolute;top:100%;left:0;z-index:1000;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);min-width:200px;padding:6px 0;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.hamburger-menu button{display:flex;align-items:center;gap:16px;width:100%;padding:10px 16px;border:none;background:none;color:var(--text-primary);font-size:14px;cursor:pointer;transition:background var(--transition)}.hamburger-menu button:hover{background:var(--bg-hover)}.menu-divider{height:1px;background:var(--border);margin:4px 0}.folder-tabs{display:flex;overflow-x:auto;padding:0 4px;flex-shrink:0;border-bottom:1px solid var(--border);gap:0}.folder-tabs::-webkit-scrollbar{display:none}.folder-tab{padding:10px 16px;border:none;background:none;color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;white-space:nowrap;position:relative;transition:color var(--transition)}.folder-tab:hover{color:var(--text-primary)}.folder-tab.active{color:var(--accent)}.folder-tab.active:after{content:"";position:absolute;bottom:0;left:12px;right:12px;height:3px;background:var(--accent);border-radius:3px 3px 0 0}.chat-list{flex:1;overflow-y:auto;padding:4px 0}.chat-list-status{padding:20px;text-align:center;color:var(--text-secondary);font-size:14px}.chat-item{display:flex;align-items:center;gap:12px;padding:8px 12px;cursor:pointer;transition:background var(--transition);border-radius:0}.chat-item:hover{background:var(--bg-hover)}.chat-item.active{background:var(--bg-active-faded)}.chat-avatar-wrap{position:relative;flex-shrink:0}.chat-avatar{width:48px;height:48px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:500;color:#fff;flex-shrink:0;text-transform:uppercase}.online-dot{position:absolute;bottom:1px;right:1px;width:12px;height:12px;border-radius:var(--radius-full);background:var(--online);border:2px solid var(--bg-sidebar)}.chat-item-body{flex:1;min-width:0}.chat-item-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.chat-item-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:2px}.chat-item-title{font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:4px}.chat-type-icon{flex-shrink:0;color:var(--text-secondary)}.chat-item-time{font-size:12px;color:var(--text-secondary);white-space:nowrap;display:flex;align-items:center;gap:4px}.pin-icon{color:var(--text-tertiary)}.chat-item-preview{font-size:14px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:2px;flex:1}.chat-item-preview .msg-check{color:var(--accent);flex-shrink:0}.sender-name{color:var(--accent);font-weight:500}.unread-badge{background:var(--unread-bg);color:#fff;border-radius:12px;padding:1px 8px;font-size:12px;font-weight:500;min-width:22px;text-align:center;flex-shrink:0}.chat-view{display:flex;flex-direction:column;height:100%}.chat-header{display:flex;align-items:center;gap:12px;padding:0 8px;height:var(--header-height);flex-shrink:0;background:var(--bg-primary);border-bottom:1px solid var(--border)}.back-btn{display:none}.chat-header-avatar{width:40px;height:40px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:500;color:#fff;flex-shrink:0}.chat-header-info{flex:1;min-width:0;cursor:pointer}.chat-header-title{font-size:16px;font-weight:500;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header-status{font-size:13px;color:var(--text-secondary);display:block}.chat-header-status.online{color:var(--accent)}.chat-header-actions{display:flex;gap:2px}.chat-search-bar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-primary);border-bottom:1px solid var(--border)}.chat-search-bar input{flex:1;border:none;outline:none;background:var(--bg-secondary);color:var(--text-primary);padding:8px 12px;border-radius:20px;font-size:14px}.chat-search-bar input::placeholder{color:var(--text-tertiary)}.messages-container{flex:1;overflow-y:auto;display:flex;flex-direction:column;background:var(--bg-chat)}.messages-inner{max-width:728px;width:100%;margin:0 auto;padding:8px 16px;display:flex;flex-direction:column;gap:2px}.date-separator{display:flex;justify-content:center;padding:8px 0;position:sticky;top:0;z-index:2}.date-separator span{background:#00000080;color:#fff;padding:4px 12px;border-radius:12px;font-size:13px;font-weight:500;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.message{max-width:480px;padding:6px 10px;position:relative;border-radius:var(--radius-msg);margin:1px 0;word-break:break-word}.message.in{align-self:flex-start;background:var(--msg-in-bg);border:1px solid var(--border);border-bottom-left-radius:4px}.message.out{align-self:flex-end;background:var(--msg-out-bg);border-bottom-right-radius:4px}.msg-sender{font-size:13px;font-weight:500;margin-bottom:2px}.msg-forward{font-size:13px;color:var(--accent);margin-bottom:4px;padding:4px 8px;border-left:2px solid var(--accent);background:#8774e11a;border-radius:0 4px 4px 0}.msg-text{font-size:15px;line-height:1.4;white-space:pre-wrap}.msg-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin-top:2px;float:right;padding-left:8px}.msg-time{font-size:11px;color:#ffffff80}.msg-edited{font-size:11px;color:#fff6}.msg-views{display:flex;align-items:center;gap:2px;font-size:11px;color:#ffffff80}.msg-status{display:flex;align-items:center}.msg-status svg{color:#ffffff80}.msg-status.read svg{color:#fffc}.msg-reactions{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px;clear:both}.reaction-btn{display:flex;align-items:center;gap:4px;padding:3px 8px;border-radius:12px;font-size:14px;border:1px solid var(--border);background:#ffffff0d;cursor:pointer;color:var(--text-primary);transition:all var(--transition)}.reaction-btn:hover{background:#ffffff1a}.reaction-btn.chosen{border-color:var(--accent);background:var(--bg-active-faded)}.reaction-btn.add{font-size:12px;color:var(--text-tertiary)}.msg-reaction-hover{display:none;position:absolute;top:-36px;right:0;background:var(--bg-primary);border:1px solid var(--border);border-radius:20px;padding:2px 4px;gap:2px;box-shadow:var(--shadow);z-index:10}.message:hover .msg-reaction-hover{display:flex}.msg-reaction-hover button{background:none;border:none;cursor:pointer;padding:4px 6px;border-radius:12px;font-size:18px;transition:background var(--transition)}.msg-reaction-hover button:hover{background:var(--bg-hover)}.msg-media{margin:4px -2px}.msg-photo img,.msg-sticker img{max-width:320px;max-height:320px;border-radius:var(--radius-sm);display:block;object-fit:contain}.msg-sticker img{max-width:200px;max-height:200px;background:transparent}.media-placeholder{width:200px;height:150px;background:#ffffff0d;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary)}.media-placeholder.loading{cursor:default}.voice-player{display:flex;align-items:center;gap:8px;padding:4px 0;min-width:200px}.voice-play-btn{width:36px;height:36px;border-radius:var(--radius-full);background:var(--accent);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}.voice-waveform{display:flex;align-items:center;gap:2px;height:28px;flex:1}.wave-bar{width:3px;min-height:3px;border-radius:2px;background:#ffffff59;transition:background .1s}.wave-bar.played{background:#fffc}.voice-duration{font-size:12px;color:#ffffff80;flex-shrink:0}.voice-load-btn{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:var(--radius-sm);background:#ffffff0d;border:none;color:var(--text-primary);cursor:pointer;font-size:14px}.voice-load-btn:disabled{opacity:.5}.msg-video-note{position:relative;width:fit-content}.video-note-player{width:240px;height:240px;border-radius:var(--radius-full);object-fit:cover;cursor:pointer;display:block}.video-note-placeholder{width:240px;height:240px;border-radius:var(--radius-full);background:#ffffff14;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary)}.video-note-duration{position:absolute;bottom:8px;left:50%;transform:translate(-50%);background:#0009;color:#fff;padding:2px 8px;border-radius:10px;font-size:12px}.doc-download-btn{display:flex;align-items:center;gap:12px;padding:8px 12px;border-radius:var(--radius-sm);background:#ffffff0d;border:none;color:var(--text-primary);cursor:pointer;text-decoration:none;width:100%;transition:background var(--transition)}.doc-download-btn:hover{background:#ffffff1a}.doc-download-btn:disabled{opacity:.5;cursor:default}.doc-download-btn svg{flex-shrink:0;color:var(--accent)}.doc-info{display:flex;flex-direction:column;min-width:0;text-align:left}.doc-name{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-size{font-size:12px;color:#ffffff80}.msg-media-label{font-size:14px;color:var(--text-secondary);padding:4px 0}.spinner{width:24px;height:24px;border:2px solid rgba(255,255,255,.2);border-top-color:var(--accent);border-radius:var(--radius-full);animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.input-area{display:flex;align-items:flex-end;gap:4px;padding:8px;background:var(--bg-primary);border-top:1px solid var(--border)}.msg-input{flex:1;resize:none;border:none;outline:none;background:var(--bg-input);color:var(--text-primary);padding:10px 14px;border-radius:20px;font-size:15px;font-family:inherit;max-height:200px;line-height:1.4;min-height:40px}.msg-input::placeholder{color:var(--text-tertiary)}.msg-input:disabled{opacity:.5}.send-btn{color:var(--accent)!important}.send-btn:hover{background:var(--bg-active-faded)!important}.mic-btn{color:var(--text-secondary)}.attach-wrap{position:relative}.attach-menu{position:absolute;bottom:100%;left:0;margin-bottom:8px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);min-width:200px;padding:6px 0;animation:fadeIn .15s ease}.attach-menu button{display:flex;align-items:center;gap:14px;width:100%;padding:10px 16px;border:none;background:none;color:var(--text-primary);font-size:14px;cursor:pointer;transition:background var(--transition)}.attach-menu button:hover{background:var(--bg-hover)}.attach-menu button svg{color:var(--accent)}.recording-bar{display:flex;align-items:center;gap:12px;width:100%;padding:4px 0}.recording-indicator{flex:1;display:flex;align-items:center;gap:8px}.recording-dot{width:10px;height:10px;border-radius:var(--radius-full);background:var(--danger);animation:blink 1s infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.recording-time{font-size:15px;color:var(--text-primary);font-variant-numeric:tabular-nums}.recording-cancel{color:var(--danger)!important}.more-menu-wrap{position:relative}.dropdown-menu{position:absolute;top:100%;z-index:1000;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);min-width:180px;padding:6px 0;animation:fadeIn .15s ease}.dropdown-menu.right{right:0}.dropdown-menu button{display:flex;align-items:center;gap:14px;width:100%;padding:10px 16px;border:none;background:none;color:var(--text-primary);font-size:14px;cursor:pointer;transition:background var(--transition)}.dropdown-menu button:hover{background:var(--bg-hover)}.settings-panel{display:flex;flex-direction:column;height:100%}.settings-header{display:flex;align-items:center;gap:12px;padding:0 8px;height:var(--header-height);flex-shrink:0;border-bottom:1px solid var(--border)}.settings-header h2{font-size:18px;font-weight:500}.settings-profile{display:flex;align-items:center;gap:16px;padding:20px 16px}.settings-avatar{width:64px;height:64px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:500;color:#fff;flex-shrink:0}.settings-user-info{display:flex;flex-direction:column;gap:2px}.settings-name{font-size:16px;font-weight:500}.settings-phone{font-size:14px;color:var(--text-secondary)}.settings-username{font-size:14px;color:var(--accent)}.settings-section{padding:4px 0;border-top:1px solid var(--border)}.settings-item{display:flex;align-items:center;gap:16px;padding:12px 16px;cursor:pointer;transition:background var(--transition)}.settings-item:hover{background:var(--bg-hover)}.settings-item svg{color:var(--text-secondary);flex-shrink:0}.settings-item.info{cursor:default}.settings-item.info:hover{background:transparent}.item-title{font-size:15px;display:block}.item-subtitle{font-size:13px;color:var(--text-secondary);display:block}.settings-logout{display:flex;align-items:center;gap:16px;width:100%;padding:14px 16px;border:none;background:none;color:var(--danger);font-size:15px;cursor:pointer;transition:background var(--transition)}.settings-logout:hover{background:#e539351a}.settings-logout svg{color:var(--danger)}@media(max-width:768px){.sidebar-container{width:100%;min-width:100%;position:absolute;top:0;left:0;bottom:0;z-index:100}.main-container{width:100%}.app.authenticated:has(.chat-view) .sidebar-container{display:none}.back-btn{display:flex!important}.message{max-width:85%}.video-note-player,.video-note-placeholder{width:200px;height:200px}}