:root{color-scheme:dark;--bg:#07111d;--panel:#0d1b2b;--panel2:#10243a;--line:#243c55;--muted:#8fa6bc;--text:#eef7ff;--accent:#2dd4bf;--accent2:#38bdf8;--warning:#ffbd45;--danger:#fb5c68;--radius:14px;font-family:Inter,Segoe UI,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 70% -20%,#153d55 0,transparent 42%),var(--bg);color:var(--text);min-height:100vh}.topbar{height:64px;border-bottom:1px solid var(--line);background:#07111df2;backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:space-between;padding:0 18px;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}.brand-mark{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#04202a;font-weight:900}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:11px;margin-top:2px}.top-actions{display:flex;gap:7px;align-items:center}.session{color:var(--muted);font-size:12px;margin-right:6px}button,input,select,textarea{font:inherit}button{border:1px solid var(--line);background:#15283b;color:var(--text);border-radius:9px;padding:8px 12px;cursor:pointer}button:hover{border-color:#4b6986}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:linear-gradient(135deg,#0e9f8b,#20bfa2);border-color:#30d5b5;color:#031a19;font-weight:800}.danger{background:#a92c3b;border-color:#d54a59;color:#fff;font-weight:700}.secondary{background:#122438}.workspace{display:grid;grid-template-columns:290px minmax(480px,1fr) minmax(440px,.82fr);gap:12px;padding:12px;height:calc(100vh - 64px)}.panel{background:linear-gradient(180deg,#0e1d2e,#0a1725);border:1px solid var(--line);border-radius:var(--radius);min-height:0;overflow:hidden}.panel-title{display:flex;align-items:center;justify-content:space-between;padding:15px 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