:root{--bg: #1e1e1e;--bg2: #252526;--bg3: #2d2d30;--border: #3c3c3c;--fg: #d4d4d4;--muted: #9d9d9d;--accent: #007acc;--accent2: #0e639c;--danger: #f14c4c;--ok: #89d185;--font: "Cascadia Code", "Segoe UI Mono", Consolas, "Courier New", monospace;--ui: "Segoe UI", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--fg);font-family:var(--ui);font-size:13px}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:12px;height:30px;padding:0 10px;background:var(--bg3);border-bottom:1px solid var(--border)}.topbar .brand{font-weight:600;letter-spacing:.02em}.topbar .spacer{flex:1}.topbar button,.btn{background:var(--bg2);color:var(--fg);border:1px solid var(--border);padding:2px 10px;cursor:pointer;font-size:12px}.topbar 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