:root{--green: #00a884;--green-dark: #008069;--green-ink: #005c4b;--bg-page: #111b21;--bg-panel: #111b21;--bg-header: #202c33;--bg-input: #2a3942;--bg-hover: #202c33;--bg-bubble-out: #005c4b;--bg-bubble-in: #202c33;--text: #e9edef;--text-secondary: #8696a0;--text-muted: #667781;--accent: #00a884;--danger: #f15c6d;--divider: #2f3b43;--chat-bg: #0b141a;--shadow: 0 8px 24px rgba(0, 0, 0, .35)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background:var(--chat-bg);color:var(--text);overflow:hidden}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}input,textarea{font:inherit;color:var(--text)}input::placeholder,textarea::placeholder{color:var(--text-muted)}.boot-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-secondary)}.spinner{width:28px;height:28px;border:3px solid rgba(255,255,255,.15);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}.spinner.tiny{width:14px;height:14px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.app-shell{display:flex;height:100vh}.chat-list{width:380px;min-width:300px;background:var(--bg-panel);border-right:1px solid var(--divider);display:flex;flex-direction:column}.list-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-header)}.app-brand{display:flex;align-items:center;gap:10px}.app-logo{width:34px;height:34px;background:var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center}.app-logo.big{width:56px;height:56px}.brand-name{font-weight:600;font-size:19px;color:var(--text)}.list-actions{display:flex;gap:4px;position:relative}.badge-dot{position:absolute;top:2px;right:2px;background:var(--green);color:#fff;font-size:10px;font-weight:700;border-radius:10px;padding:1px 5px;min-width:16px;text-align:center}.icon-btn{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);position:relative}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.icon-btn.danger:hover{color:var(--danger)}.search-bar{display:flex;align-items:center;gap:10px;margin:12px 12px 8px;padding:8px 14px;background:var(--bg-input);border-radius:8px}.search-bar input{background:none;border:none;outline:none;flex:1}.new-chat-btn{margin:0 12px 8px;padding:9px;border-radius:8px;background:var(--green-dark);color:#fff;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}.new-chat-btn:hover{background:var(--green)}.chat-items{flex:1;overflow-y:auto}.chat-item{display:flex;align-items:center;gap:12px;padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--divider)}.chat-item:hover,.chat-item.active{background:var(--bg-hover)}.chat-item-main{flex:1;min-width:0}.chat-item-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.chat-item-title{font-weight:500;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-time{font-size:11px;color:var(--text-muted)}.chat-item-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px}.chat-item-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.typing-text{color:var(--green);font-size:13px}.unread-badge{background:var(--green);color:#fff;border-radius:12px;font-size:11px;font-weight:700;min-width:20px;height:20px;padding:0 6px;display:flex;align-items:center;justify-content:center}.list-footer{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-header)}.current-user{display:flex;align-items:center;gap:10px}.current-user-name{font-weight:500;font-size:14px}.chat-area{flex:1;display:flex;flex-direction:column;background:var(--chat-bg);position:relative}.conn-banner{position:absolute;top:0;left:0;right:0;z-index:20;background:#182229;color:var(--text-secondary);font-size:13px;padding:6px 14px;display:flex;align-items:center;gap:10px}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-header);min-height:60px}.chat-header-user{display:flex;align-items:center;gap:12px;text-align:left;flex:1;min-width:0}.chat-header-titles{min-width:0}.chat-header h2{font-size:16px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header-subtitle{font-size:12px;color:var(--text-secondary)}.chat-header-actions{display:flex;align-items:center;gap:8px}.ttl-chip{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--text-secondary);background:var(--bg-input);padding:5px 10px;border-radius:16px;white-space:nowrap}.messages-area{flex:1;overflow-y:auto}.messages-container{padding:20px 12%;display:flex;flex-direction:column;gap:4px}.msg-row{display:flex;align-items:flex-end;gap:8px}.msg-row.own{justify-content:flex-end}.msg-row.other{justify-content:flex-start}.bubble{position:relative;max-width:65%;padding:7px 10px 6px;border-radius:8px;font-size:14px;line-height:1.4;box-shadow:0 1px 1px #0003;word-break:break-word}.msg-row.own .bubble{background:var(--bg-bubble-out);border-top-right-radius:0}.msg-row.other .bubble{background:var(--bg-bubble-in);border-top-left-radius:0}.bubble.deleted{opacity:.6;font-style:italic}.bubble.system{background:transparent;box-shadow:none;max-width:90%;text-align:center}.system-text{color:var(--text-secondary);font-size:12px}.bubble-sender{color:var(--green);font-weight:600;font-size:13px;margin-bottom:2px}.bubble-text{white-space:pre-wrap}.deleted-text{color:var(--text-secondary)}.bubble-meta{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin-top:2px;float:right;padding-left:24px}.bubble-time{font-size:11px;color:#ffffff8c}.msg-row.own .bubble-time{color:#ffffffa6}.expiry{display:inline-flex;align-items:center;gap:3px;font-size:10px;color:#ffd479;background:#0003;padding:1px 6px;border-radius:10px}.expiry.expired{color:var(--danger)}.ticks{color:#fff9;display:inline-flex}.ticks.read{color:#53bdeb}.delete-msg{display:inline-flex;align-items:center;color:#ffffff73;border-radius:4px;padding:1px}.delete-msg:hover{color:var(--danger);background:#00000040}.reply-btn{display:inline-flex;align-items:center;color:#ffffff73;border-radius:4px;padding:1px}.reply-btn:hover{color:var(--green);background:#00000040}.reply-preview{background:#ffffff0f;border-left:3px solid var(--green);padding:4px 8px;border-radius:4px;margin-bottom:4px}.reply-name{font-size:11px;color:var(--green);font-weight:600}.reply-content{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px}.typing-bubble{align-self:flex-start;background:var(--bg-bubble-in);border-radius:0 8px 8px;padding:10px 14px}.typing-dots i{width:6px;height:6px;background:var(--text-secondary);border-radius:50%;display:inline-block;margin:0 1px;animation:blink 1.2s infinite}.typing-dots i:nth-child(2){animation-delay:.2s}.typing-dots i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25}30%{opacity:1}}.avatar{position:relative;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;overflow:visible}.avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.avatar-dot{position:absolute;bottom:0;right:0;width:11px;height:11px;border-radius:50%;border:2px solid var(--bg-panel);background:#666}.avatar-dot.online{background:var(--green)}.file-thumb{max-width:280px;max-height:300px;border-radius:8px;cursor:pointer;display:block;margin:-7px -10px 2px}.file-card{display:flex;align-items:center;gap:10px;background:#ffffff14;border-radius:8px;padding:8px 10px;min-width:230px;max-width:260px}.file-icon{position:relative;width:46px;height:46px;border-radius:8px;background:var(--green-dark);display:flex;align-items:center;justify-content:center;flex-shrink:0}.file-kind-badge{position:absolute;bottom:-4px;right:-4px;font-size:8px;text-transform:uppercase;font-weight:700;background:#111;color:#fff;border-radius:6px;padding:1px 4px}.file-meta{flex:1;min-width:0}.file-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-sub{font-size:11px;color:var(--text-secondary)}.file-download{color:var(--green);padding:4px;border-radius:50%}.file-download:hover{background:#0003}.msg-input-wrap{background:var(--bg-header)}.reply-bar{display:flex;align-items:center;justify-content:space-between;background:var(--bg-input);margin:0 12px 8px;padding:8px 12px;border-radius:8px}.reply-label{font-size:11px;color:var(--green);font-weight:600}.reply-text{font-size:12px;color:var(--text-secondary);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-queue{padding:8px 16px 4px;display:flex;flex-direction:column;gap:8px}.upload-item{display:flex;align-items:center;gap:12px;background:var(--bg-input);padding:8px 12px;border-radius:8px}.upload-thumb{width:40px;height:40px;border-radius:6px;overflow:hidden;background:var(--green-dark);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.upload-thumb img{width:100%;height:100%;object-fit:cover}.mini-kind{font-size:9px;text-transform:uppercase;font-weight:700}.upload-meta{flex:1;min-width:0}.upload-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.upload-progress-track{height:4px;background:#ffffff26;border-radius:2px;margin-top:4px;overflow:hidden}.upload-progress-fill{height:100%;background:var(--green);transition:width .15s}.upload-pct{font-size:12px;color:var(--green);font-weight:600}.input-error{color:var(--danger);font-size:12px;padding:4px 16px}.msg-input{display:flex;align-items:flex-end;gap:10px;padding:12px 16px}.attach-btn{color:var(--text-secondary);padding:6px;border-radius:50%;flex-shrink:0}.attach-btn:hover{color:var(--text);background:var(--bg-hover)}.msg-input textarea{flex:1;resize:none;background:var(--bg-input);border:none;outline:none;border-radius:8px;padding:11px 14px;max-height:140px;line-height:1.4}.send-btn{width:42px;height:42px;flex-shrink:0;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center}.send-btn:disabled{opacity:.4;cursor:default}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;color:var(--text-secondary);padding:40px 20px}.empty-state.main{height:100%}.empty-logo{color:var(--green-dark)}.empty-state h2{color:var(--text);font-size:20px;font-weight:400}.empty-state p{max-width:380px;font-size:14px}.empty-state.small{font-size:13px;padding:24px}.chat-empty{padding:40px}.btn-primary{background:var(--green);color:#fff;border-radius:8px;padding:11px 22px;font-weight:600;font-size:14px}.btn-primary:hover{background:var(--green-dark)}.btn-primary:disabled{opacity:.5;cursor:default}.btn-primary.small{padding:6px 14px;font-size:13px}.btn-primary.full{width:100%}.btn-danger{background:var(--danger);color:#fff;border-radius:8px;padding:10px 18px;font-weight:600}.btn-danger.full{width:100%}.link-btn{color:var(--green);font-size:13px;font-weight:600}.link-btn:hover{text-decoration:underline}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#0000008c;display:flex;align-items:center;justify-content:center}.modal{background:#1f2c34;border-radius:12px;max-width:92vw;max-height:86vh;display:flex;flex-direction:column;box-shadow:var(--shadow);overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--bg-header);border-bottom:1px solid var(--divider)}.modal-header h3{font-size:16px;font-weight:600}.modal-body{padding:16px 20px;overflow-y:auto}.auth-screen{height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(1200px 600px at 50% -10%,#0d322b 0%,var(--chat-bg) 55%);padding:20px}.auth-card{width:420px;max-width:100%;background:#1f2c34;border-radius:16px;padding:32px 32px 24px;box-shadow:var(--shadow)}.auth-logo{text-align:center;margin-bottom:20px}.auth-logo-badge{width:72px;height:72px;margin:0 auto 12px;background:var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #00a88466}.auth-card h1{font-size:26px;margin-bottom:6px}.auth-tagline{color:var(--text-secondary);font-size:13px;line-height:1.5}.auth-tabs{display:flex;margin-bottom:18px;border-bottom:1px solid var(--divider)}.auth-tabs button{flex:1;padding:12px;font-weight:600;color:var(--text-secondary);border-bottom:2px solid transparent;margin-bottom:-1px}.auth-tabs button.active{color:var(--green);border-color:var(--green)}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-form input{background:var(--bg-input);border:1px solid transparent;border-radius:8px;padding:13px 14px;outline:none}.auth-form input:focus{border-color:var(--green)}.auth-error{color:var(--danger);font-size:13px}.auth-note{margin-top:18px;display:flex;align-items:flex-start;gap:8px;color:var(--text-muted);font-size:12px;line-height:1.5}.nc-tabs{display:flex;gap:8px;margin-bottom:12px}.nc-tabs button{padding:8px 18px;border-radius:18px;background:var(--bg-input);color:var(--text-secondary);font-weight:600;font-size:13px}.nc-tabs button.active{background:var(--green-dark);color:#fff}.group-name-input{width:100%;background:var(--bg-input);border:none;outline:none;border-radius:8px;padding:11px 14px;margin-bottom:12px}.nc-search{display:flex;align-items:center;gap:10px;background:var(--bg-input);padding:10px 14px;border-radius:8px;margin-bottom:10px}.nc-search input{flex:1;background:none;border:none;outline:none}.nc-results{max-height:300px;overflow-y:auto}.nc-user{display:flex;align-items:center;gap:12px;width:100%;padding:9px 10px;border-radius:8px;text-align:left}.nc-user:hover{background:var(--bg-hover)}.nc-user.selected{background:#00a8841f}.nc-user-info{flex:1;min-width:0;display:flex;flex-direction:column}.nc-user-name{font-size:14px;font-weight:500}.nc-user-sub{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nc-check{color:var(--green);font-weight:700}.nc-footer{display:flex;align-items:center;justify-content:space-between;margin-top:14px}.nc-count{color:var(--text-muted);font-size:13px}.group-info{display:flex;flex-direction:column;gap:16px}.group-banner{display:flex;flex-direction:column;align-items:center;gap:10px}.group-name{font-size:18px}.group-rename{display:flex;gap:8px;width:100%}.group-rename input{flex:1;background:var(--bg-input);border:none;outline:none;border-radius:8px;padding:10px 14px}.group-section-title{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-secondary);margin-bottom:8px}.group-member,.admin-user{display:flex;align-items:center;gap:12px;padding:8px 6px;border-radius:8px}.group-member:hover{background:var(--bg-hover)}.group-member-info{flex:1;display:flex;flex-direction:column}.group-member-name{font-size:14px}.group-member-role{font-size:12px;color:var(--text-muted)}.notif-list{display:flex;flex-direction:column;gap:6px}.notif-item{display:flex;align-items:center;gap:12px;padding:10px;border-radius:8px;text-align:left;width:100%}.notif-item:hover{background:var(--bg-hover)}.notif-icon{width:38px;height:38px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--bg-input);color:var(--green)}.notif-body{flex:1;min-width:0;display:flex;flex-direction:column}.notif-title{font-size:14px;font-weight:600}.notif-text{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.notif-time{font-size:11px;color:var(--text-muted)}.settings-form{display:flex;flex-direction:column;gap:14px}.settings-avatar{display:flex;justify-content:center;margin-bottom:4px}.settings-form label{display:flex;flex-direction:column;gap:6px}.settings-form label span{font-size:12px;color:var(--text-secondary);font-weight:600}.settings-form input{background:var(--bg-input);border:none;outline:none;border-radius:8px;padding:11px 14px}.settings-form label.readonly input{color:var(--text-muted)}.settings-info{font-size:12px;color:var(--text-muted);background:var(--bg-input);padding:10px 12px;border-radius:8px;line-height:1.5}.settings-msg{color:var(--green);font-size:13px}.admin-tabs{display:flex;gap:8px;margin-bottom:16px}.admin-tabs button{padding:8px 18px;border-radius:18px;background:var(--bg-input);color:var(--text-secondary);font-weight:600;font-size:13px}.admin-tabs button.active{background:var(--green-dark);color:#fff}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.stat-card{background:var(--bg-input);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:4px}.stat-value{font-size:22px;font-weight:700;color:var(--green)}.stat-label{font-size:12px;color:var(--text-secondary)}.admin-panels{display:grid;grid-template-columns:1fr 1fr;gap:12px}.admin-panel{background:var(--bg-input);border-radius:10px;padding:14px}.admin-panel h4{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.admin-row{display:flex;justify-content:space-between;padding:4px 0;font-size:13px;border-bottom:1px solid rgba(255,255,255,.04)}.admin-users{max-height:400px;overflow-y:auto}.admin-user-info{flex:1;display:flex;flex-direction:column}.admin-user-name{font-size:14px}.admin-user-sub{font-size:12px;color:var(--text-muted)}.admin-user-status{font-size:12px;color:var(--text-secondary)}.admin-log{width:100%;border-collapse:collapse;font-size:13px}.admin-log th,.admin-log td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--divider)}.admin-log th{color:var(--text-secondary);font-weight:600}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}@media (max-width: 900px){.chat-list{width:320px;min-width:260px}.messages-container{padding:16px 6%}.stat-grid{grid-template-columns:repeat(2,1fr)}}