:root{--bg-primary:#0e1621;--bg-secondary:#17212b;--bg-tertiary:#242f3d;--bg-hover:#202b36;--bg-active:#2b5278;--bg-bubble-mine:#2b5278;--bg-bubble-theirs:#182533;--accent:#3390ec;--accent-hover:#4ea4f6;--text-primary:#f5f5f5;--text-secondary:#7e919e;--text-muted:#5b6d7a;--border:#ffffff0f;--online:#4dcd5e;--danger:#e53935}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);width:100vw;height:100dvh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}#root{width:100vw;height:100dvh}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}a{color:var(--accent);text-decoration:none}.app-loading{justify-content:center;align-items:center;height:100dvh;display:flex}.spinner{border:2.5px solid #ffffff1a;border-top-color:var(--accent);border-radius:50%;width:24px;height:24px;animation:.7s linear infinite spin}.spinner.large{width:36px;height:36px}@keyframes spin{to{transform:rotate(360deg)}}.app{width:100vw;height:100dvh;display:flex}.auth-container{justify-content:center;align-items:center;height:100dvh;padding:20px;display:flex}.auth-card{background:var(--bg-secondary);border-radius:12px;width:100%;max-width:380px;padding:36px 28px;animation:.25s fadeIn;box-shadow:0 4px 24px #0006}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo h1{margin-top:10px;font-size:22px;font-weight:600}.auth-form h2{text-align:center;margin-bottom:6px;font-size:18px;font-weight:600}.auth-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:14px;font-size:13px}.auth-error{color:var(--danger);text-align:center;background:#e539351f;border-radius:8px;margin-bottom:10px;padding:8px 12px;font-size:13px}.auth-form input{background:var(--bg-primary);width:100%;color:var(--text-primary);border:1.5px solid var(--border);border-radius:8px;outline:none;margin-bottom:10px;padding:11px 14px;font-size:14px;transition:border-color .2s}.auth-form input:focus{border-color:var(--accent)}.auth-form button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:2px;padding:11px;font-size:14px;font-weight:600;transition:background .2s}.auth-form button:hover:not(:disabled){background:var(--accent-hover)}.auth-form button:disabled{opacity:.5;cursor:default}.auth-link{text-align:center;color:var(--text-secondary);margin-top:14px;font-size:13px}.auth-link span{color:var(--accent);cursor:pointer}.input-with-status{position:relative}.field-hint{margin-top:-6px;margin-bottom:6px;padding-left:2px;font-size:11px;display:block}.field-hint.ok{color:var(--online)}.field-hint.error{color:var(--danger)}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;width:320px;min-width:320px;height:100dvh;display:flex}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;height:52px;padding:10px 14px;display:flex}.sidebar-header h2{font-size:17px;font-weight:700}.sidebar-header-actions{align-items:center;gap:6px;display:flex}.sidebar-username{color:var(--text-secondary);font-size:12px}.icon-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:5px;transition:all .15s;display:flex}.icon-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.search-bar{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:6px 10px;display:flex;position:relative}.search-icon{color:var(--text-muted);flex-shrink:0;margin-left:4px}.search-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;padding:6px 0;font-size:13px}.search-input::placeholder{color:var(--text-muted)}.search-clear{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;padding:4px;display:flex}.search-clear:hover{color:var(--text-primary);background:var(--bg-hover)}.chat-list{flex:1;overflow-y:auto}.chat-item{cursor:pointer;align-items:center;gap:10px;padding:8px 14px;transition:background .1s;display:flex}.chat-item:hover{background:var(--bg-hover)}.chat-item.active{background:var(--bg-active)}.chat-avatar-wrap{flex-shrink:0;position:relative}.chat-avatar{object-fit:cover;border-radius:50%;width:46px;height:46px}.chat-avatar.placeholder{background:var(--accent);color:#fff;justify-content:center;align-items:center;font-size:17px;font-weight:600;display:flex}.online-dot{background:var(--online);border:2px solid var(--bg-secondary);border-radius:50%;width:11px;height:11px;position:absolute;bottom:0;right:0}.online-dot.small{border-color:var(--bg-primary);width:9px;height:9px}.chat-info{flex:1;min-width:0}.chat-top-row{justify-content:space-between;align-items:center;margin-bottom:1px;display:flex}.chat-name{white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:3px;font-size:14px;font-weight:500;display:flex;overflow:hidden}.pin-icon{color:var(--text-muted);flex-shrink:0}.chat-time{color:var(--text-secondary);flex-shrink:0;margin-left:6px;font-size:11px}.chat-bottom-row{justify-content:space-between;align-items:center;display:flex}.chat-last-msg{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:13px;overflow:hidden}.chat-last-msg.typing{color:var(--accent)}.unread-badge{background:var(--accent);color:#fff;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:6px;padding:0 5px;font-size:11px;font-weight:700;display:flex}.empty-state{text-align:center;color:var(--text-muted);padding:40px;font-size:14px}.chat-view{background:var(--bg-primary);flex-direction:column;flex:1;min-width:0;height:100dvh;display:flex}.chat-view.empty{justify-content:center;align-items:center}.empty-chat-msg{text-align:center;color:var(--text-muted)}.empty-chat-msg p{margin-top:12px;font-size:15px}.chat-header{background:var(--bg-secondary);border-bottom:1px solid var(--border);align-items:center;gap:10px;height:52px;padding:8px 14px;display:flex}.back-btn{color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:50%;padding:4px;display:none}.chat-header-avatar-wrap{flex-shrink:0;position:relative}.chat-header-avatar{object-fit:cover;border-radius:50%;width:38px;height:38px}.chat-header-avatar.placeholder{background:var(--accent);color:#fff;justify-content:center;align-items:center;font-size:15px;font-weight:600;display:flex}.chat-header-info{min-width:0}.chat-header-name{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;display:block;overflow:hidden}.chat-header-status{color:var(--text-secondary);font-size:12px;display:block}.chat-header-status.online{color:var(--online)}.chat-header-status.typing{color:var(--accent)}.messages-container{flex-direction:column;flex:1;padding:4px 8px;display:flex;overflow-y:auto}.loading-spinner{justify-content:center;padding:10px;display:flex}.date-separator{justify-content:center;padding:8px 0;display:flex}.date-separator span{color:#ffffffb3;background:#0006;border-radius:10px;padding:3px 10px;font-size:12px;font-weight:500}.system-message{text-align:center;color:var(--text-muted);padding:4px 0;font-size:12px}.message-bubble{word-wrap:break-word;border-radius:12px;width:fit-content;max-width:55%;margin:1px 6px;padding:6px 9px 3px;line-height:1.35;position:relative}.message-bubble.mine{background:var(--bg-bubble-mine);border-top-right-radius:12px;border-bottom-right-radius:4px;margin-left:auto;align-self:flex-end!important}.message-bubble.theirs{background:var(--bg-bubble-theirs);border-top-left-radius:12px;border-bottom-left-radius:4px;margin-right:auto;align-self:flex-start!important}.message-bubble.optimistic{opacity:.65}.msg-sender-name{color:var(--accent);margin-bottom:1px;font-size:12px;font-weight:600}.msg-text{white-space:pre-wrap;font-size:14px;line-height:1.35;display:inline}.msg-meta{float:right;align-items:center;gap:3px;margin:4px 0 -3px 8px;display:inline-flex;position:relative}.msg-time{color:#fff6;font-size:11px}.message-bubble.theirs .msg-time{color:var(--text-muted)}.msg-status{align-items:center;display:inline-flex}.msg-status.sent svg,.msg-status.delivered svg{color:#fff6}.msg-status.read svg{color:#5fc4f8}.message-bubble.media-msg{padding:2px;overflow:hidden}.message-bubble.media-msg .msg-meta{float:none;background:#0000008c;border-radius:8px;margin:0;padding:1px 6px;position:absolute;bottom:5px;right:7px}.msg-image-wrap{cursor:pointer;line-height:0}.msg-image{border-radius:10px;width:100%;max-width:340px;max-height:400px;display:block}.msg-image:hover{filter:brightness(.92)}.msg-video{border-radius:10px;width:100%;max-width:340px;max-height:400px;display:block}.message-bubble.video-note-msg{max-width:200px;overflow:visible;background:0 0!important;border-radius:0!important;padding:0!important}.message-bubble.video-note-msg .msg-meta{float:none;background:#0009;border-radius:8px;margin:0;padding:1px 7px;position:absolute;bottom:8px;left:50%;transform:translate(-50%)}.video-note-wrap{width:200px;height:200px;position:relative}.video-note{object-fit:cover;cursor:pointer;background:#000;border-radius:50%;width:200px;height:200px;display:block;box-shadow:0 1px 8px #0006}.voice-player{align-items:center;gap:8px;min-width:200px;padding:2px 0;display:flex}.voice-play-btn{cursor:pointer;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.voice-play-btn:active{transform:scale(.9)}.message-bubble.mine .voice-play-btn{color:#ffffffd9}.message-bubble.theirs .voice-play-btn{color:var(--accent)}.voice-middle{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex;overflow:hidden}.voice-waveform{cursor:pointer;align-items:center;gap:1.5px;height:28px;display:flex}.voice-bar{border-radius:1.5px;flex-shrink:0;width:2.5px;min-width:2.5px}.message-bubble.mine .voice-bar{background:#ffffff4d}.message-bubble.mine .voice-bar.played{background:#ffffffd9}.message-bubble.theirs .voice-bar{background:#ffffff26}.message-bubble.theirs .voice-bar.played{background:var(--accent)}.voice-duration{font-size:11px}.message-bubble.mine .voice-duration{color:#ffffff73}.message-bubble.theirs .voice-duration{color:var(--text-secondary)}.msg-file{align-items:center;gap:8px;padding:2px 0;display:flex}.file-info{flex:1;min-width:0}.file-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;display:block;overflow:hidden}.file-size{color:var(--text-secondary);font-size:11px}.file-download{color:var(--accent);border-radius:50%;padding:4px;display:flex}.message-input-area{background:var(--bg-secondary);border-top:1px solid var(--border);align-items:flex-end;gap:8px;padding:8px 12px;display:flex}.message-input{background:var(--bg-primary);color:var(--text-primary);border:1.5px solid var(--border);resize:none;border-radius:18px;outline:none;flex:1;max-height:150px;padding:9px 13px;font-family:inherit;font-size:14px;line-height:1.35}.message-input:focus{border-color:#ffffff26}.message-input::placeholder{color:var(--text-muted)}.send-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;transition:all .15s;display:flex}.send-btn:hover:not(:disabled){background:var(--accent-hover);transform:scale(1.04)}.send-btn:disabled{opacity:.3;cursor:default}.lightbox{z-index:1000;cursor:pointer;background:#000000ed;justify-content:center;align-items:center;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.lightbox img{object-fit:contain;cursor:default;border-radius:2px;max-width:94vw;max-height:94vh}.lightbox-close{color:#fff;cursor:pointer;background:#ffffff1f;border:none;border-radius:50%;width:36px;height:36px;font-size:16px;position:absolute;top:12px;right:12px}.lightbox-close:hover{background:#ffffff40}.ws-indicator{z-index:100;border-radius:50%;width:8px;height:8px;position:fixed;bottom:12px;right:12px}.ws-indicator.connected{background:var(--online)}.ws-indicator.connecting{background:#f9a825;animation:1.5s infinite pulse}.ws-indicator.disconnected{background:var(--danger)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes msgIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@media (width<=768px){.sidebar{width:100%;min-width:100%}.chat-view{width:100%;transition:left .2s;position:absolute;top:0;left:100%}.app.chat-open .sidebar{position:absolute;left:-100%}.app.chat-open .chat-view{left:0}.back-btn{display:flex}.message-bubble{width:fit-content;max-width:80%}}