*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #ffffff;--bg-2: #f7f7f5;--bg-3: #f0efe9;--text: #1a1a18;--text-2: #6b6b67;--text-3: #a0a09c;--border: rgba(0, 0, 0, .1);--border-2: rgba(0, 0, 0, .18);--teal-light: #e1f5ee;--teal-dark: #085041;--purple-light: #eeedfe;--purple-dark: #3c3489;--radius-sm: 8px;--radius-md: 12px}@media (prefers-color-scheme: dark){:root{--bg: #1c1c1a;--bg-2: #242422;--bg-3: #2c2c2a;--text: #f0efe9;--text-2: #a0a09c;--text-3: #6b6b67;--border: rgba(255, 255, 255, .08);--border-2: rgba(255, 255, 255, .14);--teal-light: #0a3028;--teal-dark: #9fe1cb;--purple-light: #1e1c3a;--purple-dark: #cecbf6}}html,body{height:100%;background:var(--bg-3);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}#root{height:100%}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-3);background-image:radial-gradient(var(--border) 1px,transparent 0);background-size:22px 22px;padding:20px}.login-card{background:var(--bg);border:.5px solid var(--border-2);border-radius:var(--radius-md);padding:40px 36px;width:100%;max-width:380px;box-shadow:0 4px 32px #00000012}.login-brand{text-align:center;margin-bottom:32px}.login-logo{display:flex;align-items:center;justify-content:center;gap:5px;margin-bottom:14px}.logo-dot{width:9px;height:9px;border-radius:50%;background:#1d9e75;animation:dot-pulse 1.6s ease-in-out infinite}.logo-dot:nth-child(2){animation-delay:.27s;background:var(--purple-dark)}.logo-dot:nth-child(3){animation-delay:.54s;background:var(--text-3)}@keyframes dot-pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.4);opacity:.65}}.brand-name{font-size:21px;font-weight:600;color:var(--text);letter-spacing:-.3px;font-family:SF Mono,Monaco,Cascadia Code,Fira Code,monospace}.brand-sub{font-size:12px;color:var(--text-3);margin-top:5px;letter-spacing:.1px}.login-form{display:flex;flex-direction:column;gap:14px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:10.5px;font-weight:600;color:var(--text-2);text-transform:uppercase;letter-spacing:.6px}.form-input{height:40px;padding:0 14px;font-size:13.5px;border:.5px solid var(--border-2);border-radius:var(--radius-sm);background:var(--bg-2);color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s;font-family:inherit;width:100%}.form-input::placeholder{color:var(--text-3);font-size:13px}.form-input:focus{border-color:#1d9e75;box-shadow:0 0 0 3px #1d9e751f}.form-error{font-size:12px;color:#e24b4a;background:#e24b4a12;border:.5px solid rgba(226,75,74,.22);border-radius:var(--radius-sm);padding:9px 12px;line-height:1.4}.form-success{font-size:12px;color:#1d9e75;background:var(--teal-light);border:.5px solid rgba(29,158,117,.25);border-radius:var(--radius-sm);padding:9px 12px;line-height:1.4}.login-btn{height:40px;background:#1d9e75;color:#fff;border:none;border-radius:var(--radius-sm);font-size:13.5px;font-weight:500;cursor:pointer;margin-top:4px;transition:background .15s,opacity .15s,transform .1s;display:flex;align-items:center;justify-content:center;font-family:inherit;letter-spacing:.1px}.login-btn:hover:not(:disabled){background:#178a65}.login-btn:active:not(:disabled){transform:scale(.98)}.login-btn:disabled{opacity:.6;cursor:not-allowed}.btn-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-footer{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:22px;padding-top:20px;border-top:.5px solid var(--border)}.footer-text{font-size:12px;color:var(--text-3)}.footer-link{font-size:12px;color:var(--text-2);background:none;border:none;cursor:pointer;text-decoration:underline;text-underline-offset:2px;font-family:inherit;padding:0;transition:color .12s}.footer-link:hover{color:var(--text)}.shell{height:100vh;display:grid;grid-template-columns:220px 1fr}.sidebar{background:var(--bg-2);border-right:.5px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:20px 16px 16px;border-bottom:.5px solid var(--border)}.sidebar-title{font-size:13px;font-weight:500;color:var(--text);margin-bottom:2px}.sidebar-sub{font-size:11px;color:var(--text-3)}.user-list{flex:1;overflow-y:auto;padding:8px}.user-item{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:var(--radius-sm)}.user-item:hover{background:var(--bg)}.user-dot{width:7px;height:7px;border-radius:50%;background:#1d9e75;flex-shrink:0}.user-name{font-size:12px;color:var(--text);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-you{font-size:10px;color:var(--text-3)}.main{display:flex;flex-direction:column;background:var(--bg);overflow:hidden}.topbar{padding:14px 20px;border-bottom:.5px solid var(--border);display:flex;align-items:center;justify-content:space-between}.topbar-left{display:flex;align-items:center;gap:8px}.conn-dot{width:7px;height:7px;border-radius:50%;background:#888780;flex-shrink:0}.conn-dot.online{background:#1d9e75}.conn-dot.offline{background:#e24b4a}.conn-label{font-size:12px;color:var(--text-2)}.conn-name{font-size:13px;font-weight:500;color:var(--text)}.topbar-right{display:flex;align-items:center;gap:8px}.channel-badge{font-size:11px;color:var(--text-3);background:var(--bg-2);border:.5px solid var(--border);border-radius:20px;padding:3px 10px}.logout-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text-3);cursor:pointer;transition:background .12s,color .12s,border-color .12s;font-size:14px}.logout-btn:hover{background:var(--bg-2);color:var(--text-2);border-color:var(--border-2)}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.msg-wrap{display:flex;flex-direction:column}.msg-wrap.self{align-items:flex-end}.msg-wrap.other{align-items:flex-start}.msg-wrap.system{align-items:center}.msg-meta{display:flex;align-items:center;gap:6px;margin-bottom:4px;font-size:11px;color:var(--text-3)}.avatar{width:18px;height:18px;border-radius:50%;background:var(--purple-light);color:var(--purple-dark);font-size:9px;font-weight:500;display:flex;align-items:center;justify-content:center;flex-shrink:0}.msg-bubble{padding:9px 13px;font-size:13.5px;line-height:1.55;max-width:68%;word-break:break-word}.msg-wrap.self .msg-bubble{background:var(--teal-light);color:var(--teal-dark);border-radius:14px 14px 4px}.msg-wrap.other .msg-bubble{background:var(--bg-2);color:var(--text);border:.5px solid var(--border);border-radius:14px 14px 14px 4px}.msg-system{font-size:11px;color:var(--text-3);background:var(--bg-2);border:.5px solid var(--border);border-radius:20px;padding:4px 12px}.msg-image{max-width:280px;border-radius:12px;display:block;margin-top:4px;border:.5px solid var(--border)}.file-link{color:inherit;text-decoration:underline;word-break:break-all}.input-area{padding:14px 20px;border-top:.5px solid var(--border);display:flex;gap:8px;align-items:center}.msg-input{flex:1;height:38px;padding:0 14px;font-size:13.5px;border:.5px solid var(--border-2);border-radius:var(--radius-sm);background:var(--bg-2);color:var(--text);outline:none;font-family:inherit}.msg-input::placeholder{color:var(--text-3)}.msg-input:focus{border-color:#1d9e7566}.send-btn{height:38px;padding:0 16px;font-size:13px;border:.5px solid var(--border-2);border-radius:var(--radius-sm);background:transparent;color:var(--text);cursor:pointer;display:flex;align-items:center;gap:6px;font-family:inherit;transition:background .12s}.send-btn:hover:not(:disabled){background:var(--bg-2)}.send-btn:disabled{opacity:.45;cursor:not-allowed}.messages::-webkit-scrollbar,.user-list::-webkit-scrollbar{width:4px}.messages::-webkit-scrollbar-thumb,.user-list::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:4px}@media (max-width: 768px){.shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{padding:12px 14px}.conn-name{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.channel-badge{font-size:10px;padding:2px 8px}.messages{padding:12px;gap:10px}.msg-bubble{max-width:88%;font-size:13px;padding:10px 12px}.msg-image{max-width:100%}.input-area{padding:10px;gap:6px}.msg-input{min-width:0;font-size:16px}.send-btn{height:38px;padding:0 12px;flex-shrink:0}.send-btn i{font-size:16px}.login-card{padding:32px 24px}}