:root{--bg: #101010;--surface: #181818;--surface2: #1e1e1e;--border: #2a2a2a;--border2: #333;--text: #c8c8c8;--text-dim: #666;--accent: #e04e1a;--accent-dim: rgba(224, 78, 26, .12);--green: #2ea043;--red: #c33;--mono: "JetBrains Mono", "Fira Code", "SF Mono", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}button{cursor:pointer;font-family:inherit;font-size:inherit;border:none;background:none;color:inherit}input{font-family:inherit;font-size:inherit;color:inherit}a{color:var(--accent);text-decoration:none}.form-label{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.form-label span{font-family:var(--mono);font-size:.75rem;color:var(--text-dim);text-transform:lowercase}.form-input{padding:9px 12px;background:var(--bg);border:1px solid var(--border);border-radius:4px;color:var(--text);outline:none;transition:border-color .15s;width:100%}.form-input:focus{border-color:#555}.form-input::placeholder{color:#444}.form-error{font-size:.8rem;color:var(--red);margin-bottom:12px;padding:8px 10px;border:1px solid rgba(204,51,51,.25);border-radius:4px;background:#cc33330f}.form-success{font-size:.8rem;color:var(--green);margin-bottom:12px;padding:8px 10px;border:1px solid rgba(46,160,67,.25);border-radius:4px;background:#2ea0430f}.btn-primary{padding:9px 20px;background:var(--accent);color:#fff;border:1px solid var(--accent);border-radius:4px;font-size:.85rem;font-weight:500;transition:opacity .15s,background .15s;white-space:nowrap}.btn-primary:hover:not(:disabled){opacity:.88}.btn-primary:disabled{opacity:.4;cursor:default}.btn-ghost{padding:8px 16px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:4px;font-size:.85rem;transition:border-color .15s,background .15s;white-space:nowrap}.btn-ghost:hover:not(:disabled){border-color:#555;background:#222}.btn-ghost.danger{color:var(--red);border-color:#cc333340}.btn-ghost.danger:hover{background:#cc333314;border-color:var(--red)}.icon-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px;color:var(--text-dim);transition:color .15s,background .15s}.icon-btn:hover{color:var(--text);background:var(--surface2)}.auth-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:32px}.auth-brand{font-family:var(--mono);font-size:1.1rem;font-weight:700;color:var(--accent);margin-bottom:28px;letter-spacing:.02em}.auth-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:1px solid var(--border)}.auth-tab{flex:1;padding:8px 0;font-family:var(--mono);font-size:.78rem;color:var(--text-dim);border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .15s,border-color .15s}.auth-tab:hover{color:var(--text)}.auth-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.auth-form{display:flex;flex-direction:column}.auth-form .btn-primary{align-self:stretch;margin-top:4px}.auth-divider{display:flex;align-items:center;gap:10px;margin:16px 0 12px;color:var(--text-dim);font-size:.75rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.btn-sso{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;padding:9px 20px;background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:4px;font-size:.85rem;font-weight:500;transition:border-color .15s,background .15s}.btn-sso:hover{border-color:#555;background:#222}.sso-loading{display:flex;flex-direction:column;align-items:center;gap:14px;padding:16px 0;color:var(--text-dim);font-family:var(--mono);font-size:.82rem}.sso-spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chat-page{display:flex;height:100%;overflow:hidden}.sidebar{width:260px;min-width:260px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}.sidebar-brand{font-family:var(--mono);font-size:.9rem;font-weight:700;color:var(--accent);letter-spacing:.02em}.sidebar-header-actions{display:flex;gap:4px}.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s}.sidebar-user:hover{background:var(--surface2)}.sidebar-username{font-size:.85rem;color:var(--text);font-weight:500}.user-avatar-sm{width:28px;height:28px;border-radius:50%;background:var(--accent-dim);border:1px solid var(--border);overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.72rem;font-weight:600;color:var(--accent)}.user-avatar-sm img{width:100%;height:100%;object-fit:cover}.chat-list{flex:1;overflow-y:auto;padding:6px 0}.chat-list::-webkit-scrollbar{width:4px}.chat-list::-webkit-scrollbar-track{background:transparent}.chat-list::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}.chat-list-empty{padding:24px 16px;text-align:center;font-size:.82rem;color:var(--text-dim);line-height:1.6}.chat-list-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;transition:background .12s;position:relative}.chat-list-item:hover{background:var(--surface2)}.chat-list-item.active{background:var(--accent-dim);border-left:2px solid var(--accent);padding-left:14px}.chat-list-avatar{width:36px;height:36px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.8rem;font-weight:600;color:var(--text-dim)}.chat-list-avatar img{width:100%;height:100%;object-fit:cover}.chat-list-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.chat-list-name{font-size:.88rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-list-type{font-family:var(--mono);font-size:.68rem;color:var(--text-dim)}.unread-badge{min-width:18px;height:18px;padding:0 5px;background:var(--accent);color:#fff;border-radius:9px;font-size:.68rem;font-weight:600;display:flex;align-items:center;justify-content:center}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.chat-empty-text{font-family:var(--mono);font-size:.82rem;color:var(--text-dim)}.chat-view{flex:1;display:flex;flex-direction:column;overflow:hidden}.chat-view-header{padding:12px 20px;border-bottom:1px solid var(--border);background:var(--surface);display:flex;align-items:center}.chat-view-info{display:flex;align-items:center;gap:12px;cursor:pointer}.chat-avatar-sm{width:36px;height:36px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.82rem;font-weight:600;color:var(--text-dim)}.chat-avatar-sm img{width:100%;height:100%;object-fit:cover}.chat-view-name{font-size:.95rem;font-weight:600;color:var(--text)}.chat-type-badge{font-family:var(--mono);font-size:.68rem;color:var(--text-dim);background:var(--surface2);border:1px solid var(--border);border-radius:3px;padding:1px 6px}.messages-container{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:6px}.messages-container::-webkit-scrollbar{width:4px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}.load-more-wrap{display:flex;justify-content:center;margin-bottom:12px}.load-more{font-family:var(--mono);font-size:.72rem;color:var(--text-dim);padding:6px 14px}.message-wrap{display:flex}.message-wrap.own{justify-content:flex-end}.message-wrap.other{justify-content:flex-start}.message-bubble{max-width:68%;padding:8px 12px;border-radius:8px;display:flex;flex-direction:column;gap:4px;position:relative}.message-wrap.own .message-bubble{background:var(--accent-dim);border:1px solid rgba(224,78,26,.2);border-bottom-right-radius:2px}.message-wrap.other .message-bubble{background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:2px}.message-text{font-size:.9rem;color:var(--text);word-break:break-word;white-space:pre-wrap;line-height:1.5}.message-image{max-width:260px;max-height:320px;border-radius:4px;display:block;object-fit:contain}.message-time{font-family:var(--mono);font-size:.65rem;color:var(--text-dim);align-self:flex-end}.message-input-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--surface)}.message-input{flex:1;padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:4px;outline:none;transition:border-color .15s;font-size:.88rem}.message-input:focus{border-color:#555}.message-input::placeholder{color:#444}.attach-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;color:var(--text-dim);border-radius:4px;transition:color .15s,background .15s;flex-shrink:0}.attach-btn:hover{color:var(--text);background:var(--surface2)}.send-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border-radius:4px;transition:opacity .15s;flex-shrink:0}.send-btn:hover:not(:disabled){opacity:.85}.send-btn:disabled{opacity:.35;cursor:default}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#000000a6;display:flex;align-items:center;justify-content:center}.modal{background:var(--surface);border:1px solid var(--border);border-radius:8px;width:100%;max-width:400px;margin:16px;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border)}.modal-title{font-family:var(--mono);font-size:.85rem;font-weight:500;color:var(--text)}.modal-close{color:var(--text-dim);font-size:.85rem;padding:4px 8px;border-radius:3px;transition:color .15s,background .15s}.modal-close:hover{color:var(--text);background:var(--surface2)}.modal-tabs{display:flex;border-bottom:1px solid var(--border)}.modal-tab{flex:1;padding:8px 0;font-family:var(--mono);font-size:.75rem;color:var(--text-dim);border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .15s,border-color .15s}.modal-tab:hover{color:var(--text)}.modal-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.modal-body{padding:20px}.modal-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}.search-results{border:1px solid var(--border);border-radius:4px;margin-bottom:14px;overflow:hidden}.search-result-item{display:flex;align-items:center;gap:10px;padding:8px 12px;cursor:pointer;transition:background .12s;border-bottom:1px solid var(--border)}.search-result-item:last-child{border-bottom:none}.search-result-item:hover{background:var(--surface2)}.search-result-item.selected{background:var(--accent-dim)}.search-result-name{flex:1;font-size:.88rem;color:var(--text)}.check{color:var(--green);font-size:.82rem}.selected-users{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.selected-tag{display:inline-flex;align-items:center;gap:5px;padding:3px 8px 3px 10px;background:var(--accent-dim);border:1px solid rgba(224,78,26,.25);border-radius:12px;font-size:.78rem;color:var(--text)}.selected-tag button{font-size:.7rem;color:var(--text-dim);line-height:1;padding:0}.selected-tag button:hover{color:var(--red)}.avatar{border-radius:50%;object-fit:cover;border:1px solid var(--border)}.avatar-placeholder{border-radius:50%;background:var(--surface2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-weight:600;color:var(--text-dim)}.profile-avatar-section{display:flex;align-items:center;gap:16px;margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border)}.profile-avatar-wrap{position:relative;cursor:pointer;border-radius:50%;overflow:hidden;flex-shrink:0}.profile-avatar{width:60px;height:60px;border-radius:50%;object-fit:cover;border:1px solid var(--border);display:block}.profile-avatar-placeholder{width:60px;height:60px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:700;color:var(--text-dim)}.profile-avatar-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;font-size:.7rem;color:#fff;opacity:0;border-radius:50%;transition:opacity .15s;font-family:var(--mono)}.profile-avatar-wrap:hover .profile-avatar-overlay{opacity:1}.profile-meta{display:flex;flex-direction:column;gap:4px}.profile-username{font-size:1rem;font-weight:600;color:var(--text)}.profile-email{font-family:var(--mono);font-size:.75rem;color:var(--text-dim)}.members-list{margin-bottom:14px}.member-item{display:flex;align-items:center;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--border);font-size:.88rem;color:var(--text)}.member-item:last-child{border-bottom:none}*{scrollbar-width:thin;scrollbar-color:var(--border2) transparent}.contacts-panel{display:flex;flex-direction:column;height:100%;overflow:hidden}.contacts-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.contacts-title{font-family:var(--mono);font-size:.9rem;font-weight:700;color:var(--accent);letter-spacing:.02em}.contacts-add-btn{display:flex;align-items:center;gap:6px;font-size:.78rem;padding:6px 12px}.contacts-empty{padding:48px 24px 32px;text-align:center;display:flex;flex-direction:column;align-items:center}.contacts-empty-title{font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:8px}.contacts-empty-hint{font-size:.8rem;color:var(--text-dim);line-height:1.6;max-width:240px}.contacts-list{flex:1;overflow-y:auto;padding:6px 0}.contacts-list::-webkit-scrollbar{width:4px}.contacts-list::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}.contact-item{display:flex;align-items:center;gap:12px;padding:11px 16px;cursor:pointer;transition:background .12s}.contact-item:hover{background:var(--surface2)}.contact-avatar{width:40px;height:40px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.88rem;font-weight:600;color:var(--text-dim)}.contact-avatar img{width:100%;height:100%;object-fit:cover}.contact-info{flex:1;min-width:0}.contact-name{font-size:.92rem;color:var(--text);font-weight:500}.contact-arrow{color:var(--text-dim);flex-shrink:0}.chat-layout{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden;position:relative}.mobile-panel,.mobile-topbar{display:none}.chat-back-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--text-dim);border-radius:4px;flex-shrink:0;margin-right:4px;transition:color .15s,background .15s}.chat-back-btn:hover{color:var(--text);background:var(--surface2)}.bottom-nav{display:none}.profile-inline-scroll{flex:1;overflow-y:auto;padding:0 0 80px}.profile-inline{display:flex;flex-direction:column;align-items:center;padding:28px 20px 20px;gap:4px}.profile-inline-avatar-wrap{position:relative;cursor:pointer;border-radius:50%;overflow:hidden;margin-bottom:10px}.profile-inline-avatar{width:76px;height:76px;border-radius:50%;object-fit:cover;border:1px solid var(--border);display:block}.profile-inline-avatar--placeholder{width:76px;height:76px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:700;color:var(--text-dim)}.profile-inline-avatar-wrap:hover .profile-avatar-overlay{opacity:1}.profile-inline-name{font-size:1.05rem;font-weight:600;color:var(--text);margin-top:2px}.profile-inline-email{font-family:var(--mono);font-size:.75rem;color:var(--text-dim);margin-bottom:20px}.profile-inline-form{width:100%}@media (min-width: 641px){.bottom-nav,.mobile-panel,.mobile-topbar{display:none!important}.chat-main{display:flex;flex-direction:column;flex:1;overflow:hidden}}@media (max-width: 800px) and (min-width: 641px){.sidebar{width:220px;min-width:220px}}@media (max-width: 640px){.sidebar{display:none}.chat-page{flex-direction:column}.chat-layout{flex:1;overflow:hidden}.mobile-panel{display:none;flex-direction:column;position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg);overflow:hidden;z-index:1}.mobile-panel--vis{display:flex}.mobile-topbar{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.chat-main{display:none;flex-direction:column;position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;overflow:hidden}.chat-main--active{display:flex}.chat-empty{display:none}.message-bubble{max-width:82%}.bottom-nav{display:flex;align-items:stretch;height:60px;flex-shrink:0;background:var(--surface);border-top:1px solid var(--border);z-index:10}.bottom-nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--text-dim);font-family:var(--mono);font-size:.65rem;padding:6px 0 8px;transition:color .15s,background .15s;position:relative}.bottom-nav-btn:active{background:var(--surface2)}.bottom-nav-btn--active{color:var(--accent)}.bottom-nav-icon-wrap{position:relative;display:flex;align-items:center;justify-content:center}.bottom-nav-badge{position:absolute;top:-5px;right:-8px;min-width:16px;height:16px;padding:0 4px;background:var(--accent);color:#fff;border-radius:8px;font-size:.6rem;font-weight:700;display:flex;align-items:center;justify-content:center;font-family:var(--mono)}.bottom-nav--hidden{display:none}.bottom-nav{padding-bottom:env(safe-area-inset-bottom);height:calc(60px + env(safe-area-inset-bottom))}.modal{max-width:100%;margin:0;border-radius:16px 16px 0 0;position:fixed;bottom:0;left:0;right:0}.modal-overlay{align-items:flex-end}}