:root{color-scheme:dark;--bg:#111315;--panel:#181b1e;--panel-2:#202428;--line:#30363b;--text:#f2f4f5;--muted:#9ba4aa;--accent:#31c7b5;--accent-dark:#123d39;--danger:#ff7676;--focus:#73d9ce}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:0}button,input,textarea{font:inherit;letter-spacing:0}.login-shell{min-height:100%;display:grid;place-items:center;padding:24px;background:var(--bg)}.login-panel{width:min(400px,100%);padding:36px;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.32)}.brand-mark{display:grid;place-items:center;width:42px;height:42px;background:var(--accent);color:#082522;font-weight:850;border-radius:7px}.brand-mark.small{width:30px;height:30px}.brand-mark.hero{width:54px;height:54px;margin:auto;font-size:22px}.eyebrow{margin:22px 0 7px;color:var(--accent);font-size:12px;font-weight:750}.login-panel h1{margin:0;font-size:30px}.subtle{color:var(--muted);margin:8px 0 24px}.login-panel label{display:block;margin:14px 0 7px;font-size:13px;font-weight:650}.login-panel input{width:100%;height:44px;padding:0 12px;background:#101214;border:1px solid var(--line);border-radius:6px;color:var(--text);outline:none}.login-panel input:focus,.composer:focus-within{border-color:var(--focus);box-shadow:0 0 0 3px rgba(49,199,181,.12)}button{cursor:pointer}.primary{height:44px;border:0;border-radius:6px;background:var(--accent);color:#082522;font-weight:750}.wide{width:100%;margin-top:20px}.admin-link{display:block;text-align:center;margin-top:18px;color:var(--muted);font-size:13px}.alert{padding:10px 12px;border-left:3px solid var(--danger);background:#2a191b;color:#ffb7b7}.app-shell{height:100%;display:grid;grid-template-columns:280px minmax(0,1fr)}.sidebar{min-width:0;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:14px}.brand-row{height:44px;display:flex;align-items:center;gap:10px;padding:0 4px}.brand-row strong{font-size:14px}.new-chat{height:40px;margin:12px 0 14px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--text);text-align:left;padding:0 12px}.new-chat:hover,.conversation-item:hover{background:var(--panel-2)}.new-chat svg{color:var(--accent)}.conversation-list{flex:1;overflow:auto}.conversation-item{width:100%;height:42px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:0;border-radius:5px;background:transparent;color:#cbd1d5;text-align:left;padding:0 10px;font-size:13px}.conversation-item.active{background:var(--accent-dark);color:#d9fffa}.account-row{border-top:1px solid var(--line);padding:14px 2px 2px;display:flex;align-items:center;gap:9px}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#324148;color:#fff;font-size:12px;font-weight:800}.account-copy{min-width:0;flex:1}.account-copy strong,.account-copy span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-copy strong{font-size:12px}.account-copy span{color:var(--muted);font-size:10px}.icon-button{width:34px;height:34px;border:0;border-radius:5px;background:transparent;color:var(--muted);font-size:20px}.icon-button:hover{background:var(--panel-2);color:var(--text)}.chat-main{min-width:0;height:100%;display:grid;grid-template-rows:64px minmax(0,1fr) auto}.chat-header{border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:0 22px}.chat-header>div{min-width:0;flex:1}.chat-header h1{margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px}.chat-header p{margin:3px 0 0;color:var(--muted);font-size:11px}.status-dot{width:8px;height:8px;border-radius:50%;background:#58d68d}.status-dot.busy{background:#f4c95d;box-shadow:0 0 0 4px rgba(244,201,93,.12)}.messages{overflow:auto;padding:34px max(22px,calc((100% - 820px)/2)) 20px;scrollbar-gutter:stable}.empty-state{height:100%;display:grid;align-content:center;text-align:center;gap:18px;color:#dce1e3}.empty-state h2{font-size:24px;margin:0}.message{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;margin:0 0 28px}.message-avatar{width:30px;height:30px;border-radius:6px;display:grid;place-items:center;background:#2b3034;color:var(--muted);font-weight:800;font-size:11px}.message.assistant .message-avatar{background:var(--accent);color:#082522}.message-body{min-width:0;line-height:1.65;color:#e3e7e9;white-space:pre-wrap;overflow-wrap:anywhere}.message-body .message-label{display:block;color:var(--muted);font-size:11px;font-weight:750;margin-bottom:5px;text-transform:uppercase}.message.error .message-body{color:#ffb7b7}.composer-wrap{padding:12px max(22px,calc((100% - 820px)/2)) 16px;background:var(--bg)}.composer{min-height:56px;display:grid;grid-template-columns:minmax(0,1fr) 38px;align-items:end;gap:8px;padding:9px 9px 9px 14px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.composer textarea{align-self:center;width:100%;max-height:180px;resize:none;border:0;outline:0;background:transparent;color:var(--text);line-height:1.45}.send-button,.stop-button{width:38px;height:38px;border:0;border-radius:6px;font-weight:900}.send-button{background:var(--accent);color:#082522;font-size:20px}.send-button:disabled{opacity:.35;cursor:not-allowed}.stop-button{background:#4c2528;color:#ffc1c1}.disclaimer{text-align:center;color:#737d83;font-size:10px;margin:8px 0 0}.mobile-only{display:none}@media(max-width:720px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:min(310px,88vw);z-index:10;transform:translateX(-105%);transition:transform .2s;box-shadow:18px 0 50px rgba(0,0,0,.45)}.sidebar.open{transform:translateX(0)}.mobile-only{display:block}.brand-row .mobile-only{margin-left:auto}.chat-header{padding:0 12px}.messages{padding:24px 16px}.composer-wrap{padding:10px 12px 12px}.login-shell{background:var(--bg)}.login-panel{padding:26px 22px}}