:root{--bg: #14131a;--panel: #1c1b24;--panel-2: #232230;--line: #2e2c3b;--text: #e7e5ef;--muted: #9b98ad;--accent: #7c6fe8;--accent-ink: #ffffff}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}#app{height:100vh}.signin{height:100vh;display:grid;place-items:center;padding:24px}.signin-card{width:100%;max-width:380px;text-align:center}.mark{font-size:40px;color:var(--accent);line-height:1}.signin-card h1{font-size:30px;font-weight:600;letter-spacing:-.02em;margin:12px 0 8px}.lede{color:var(--muted);line-height:1.5;margin:0 0 24px}.error{background:#3a1f24;color:#f3a9b3;border:1px solid #5a2a32;border-radius:8px;padding:10px 12px;font-size:14px;margin:0 0 16px}.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:500;padding:11px 20px;border-radius:10px}.btn:hover{filter:brightness(1.08)}.fine{color:var(--muted);font-size:13px;margin-top:16px}.shell{height:100vh;display:flex;flex-direction:column}.bar{display:flex;align-items:center;gap:12px;padding:0 16px;height:48px;background:var(--panel);border-bottom:1px solid var(--line)}.logo{font-weight:600;color:var(--accent)}.spacer{flex:1}.who{color:var(--muted);font-size:14px}.peers{display:inline-flex;gap:5px;align-items:center}.dot{width:9px;height:9px;border-radius:50%;display:inline-block;box-shadow:0 0 0 2px var(--panel)}.link{background:none;border:none;color:var(--muted);cursor:pointer;font-size:14px;padding:4px}.link:hover{color:var(--text)}.panes{flex:1;display:flex;min-height:0}.editor-pane{flex:1.4;min-width:0;display:flex;flex-direction:column;border-right:1px solid var(--line)}.ai-pane{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--panel)}.pane-label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:10px 14px;border-bottom:1px solid var(--line)}#editor{flex:1;min-height:0;overflow:auto}.cm-editor{height:100%;background:var(--bg)}.cm-editor .cm-gutters{background:var(--bg);border-right:1px solid var(--line);color:var(--muted)}.cm-editor .cm-content{color:var(--text)}.cm-editor.cm-focused{outline:none}.chat{flex:1;min-height:0;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:12px}.msg-meta{font-size:12px;color:var(--muted);margin-bottom:3px}.msg-body{white-space:pre-wrap;line-height:1.5;border-radius:10px;padding:10px 12px;font-size:14px}.msg.user .msg-body{background:var(--panel-2)}.msg.assistant .msg-body{background:#1a2620;border:1px solid #243a2e}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}.composer textarea{flex:1;resize:none;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:9px 11px;font:inherit;font-size:14px}.composer textarea:focus{outline:none;border-color:var(--accent)}.composer button{background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;padding:0 16px;font-weight:500;cursor:pointer}.composer button:disabled{opacity:.5;cursor:default}@media (max-width: 720px){.panes{flex-direction:column}.editor-pane{border-right:none;border-bottom:1px solid var(--line)}}