:root{--page: #f9f9f7;--surface: #fcfcfb;--ink: #0b0b0b;--ink-2: #52514e;--muted: #898781;--hairline: #e1e0d9;--border: rgba(11, 11, 11, .1);--accent: #2a78d6;--accent-strong: #1c5cab;--accent-wash: #eaf2fc;--danger: #d03b3b;--danger-wash: #fbeeee;--good: #006300;--radius: 10px;--shadow: 0 1px 2px rgba(11, 11, 11, .05);--font: system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:var(--font);background:var(--page);color:var(--ink);font-size:14px;line-height:1.45}button{font-family:inherit}.shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--hairline);padding:20px 14px;position:sticky;top:0;height:100vh}.sidebar__brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:4px 8px 18px}.sidebar__brand 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