:root{--bg: #0d1117;--bg-raised: #151b23;--bg-hover: #1c232c;--border: #262d38;--border-strong: #39414f;--text: #e6edf3;--text-dim: #8d96a0;--text-faint: #5b636d;--green: #3fb950;--green-dim: #1f6b2c;--amber: #d29922;--red: #f85149;--blue: #58a6ff;--accent: #e8833a;--mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, monospace;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--panel: var(--bg-raised);--line: var(--border);--fg: var(--text);--muted: var(--text-dim);--ok: var(--green);--bad: var(--red);--callout: #ff5ea8}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}button,input,select{font-family:inherit;font-size:inherit}.app{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;gap:24px;padding:0 20px;height:52px;background:var(--bg-raised);border-bottom:1px solid 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