:root{--bg:#0b0d10;--panel:#111419;--panel2:#171b21;--line:#292f38;--text:#f2f4f7;--muted:#8d96a3;--accent:#f1ff59;--danger:#ff6b6b;--ok:#67db92}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font:14px/1.45 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea{font:inherit}.app{height:100vh;display:flex;flex-direction:column}.topbar{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:#0d1014}.brand,.top-actions,.composer-row,.tabs,.versions{display:flex;align-items:center;gap:9px}.brand{font-weight:700}.logo{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--accent);color:#111;font-weight:900}.logo.big{width:56px;height:56px;margin:auto;font-size:18px}.workspace{flex:1;min-height:0;display:grid;grid-template-columns:340px minmax(420px,1fr) 285px}.column,.right-col{min-width:0;border-right:1px solid var(--line);background:var(--panel)}.center-col{background:#0c0f13}.right-col{border-right:0}.section-head{height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid var(--line);font-weight:650}.chat{height:100%;display:flex;flex-direction:column}.messages{flex:1;overflow:auto;padding:16px}.message{max-width:90%;padding:10px 12px;border-radius:13px;margin:0 0 10px;white-space:pre-wrap}.message.user{margin-left:auto;background:#252c35}.message.assistant{background:#171b21;border:1px solid #242a32}.composer{border-top:1px solid var(--line);padding:12px}.composer textarea{width:100%;height:100px;resize:none;background:#0d1014;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:11px;outline:none}.composer textarea:focus{border-color:#596472}.composer-row{justify-content:space-between;margin-top:8px}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#171b21;color:var(--text);padding:8px 11px;border-radius:9px;text-decoration:none;cursor:pointer}.button:hover{background:#20262e}.button.primary{background:var(--accent);border-color:var(--accent);color:#101214;font-weight:750}.button:disabled{opacity:.5;cursor:not-allowed}.wide{width:100%;margin-top:8px}.pill{font-size:11px;padding:5px 8px;border-radius:999px;border:1px solid var(--line)}.pill.plan{color:#b8c0ca}.pill.execute{background:rgba(241,255,89,.12);border-color:rgba(241,255,89,.35);color:var(--accent)}.status{font-size:11px;color:var(--ok)}.tabs{height:100%}.tab{height:100%;border:0;background:none;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.08em;cursor:pointer}.tab.active{color:var(--text);border-bottom:2px solid var(--accent)}.stage{height:calc(100vh - 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