:root{color-scheme:dark;--bg: #070708;--sidebar: #0c0c0f;--surface: rgba(255, 255, 255, .035);--surface-hover: rgba(255, 255, 255, .055);--surface-raised: rgba(255, 255, 255, .06);--line: rgba(255, 255, 255, .08);--line-strong: rgba(255, 255, 255, .16);--text: rgba(255, 255, 255, .92);--muted: rgba(255, 255, 255, .5);--accent: #ffffff;--success: #7dffb2;--info: #9ecbff;--danger: #ff8e8e;--warning: #ffd27d;--sidebar-width: 248px;--radius: 14px;--radius-sm: 10px;--shell-max: 1200px;--thumb-h: 104px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.45}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.app{display:grid;grid-template-columns:var(--sidebar-width) 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:20px 14px;border-right:1px solid 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