:root{--color-bg:#fafafa;--color-text:#1a1a1a;--color-text-muted:#666;--color-border:#e0e0e0;--color-link:#0066cc;--color-link-hover:#004499;--color-nav-bg:#fff;--color-placeholder-bg:#f5f5f5;--color-card-bg:#f9f9f9;--color-heatmap-empty:#f6f8fa;--heatmap-score-0:#ebedf0;--heatmap-score-1:#c6e48b;--heatmap-score-2:#7bc96f;--heatmap-score-3:#239a3b;--heatmap-score-4:#196127;--week-type-light:rgba(240,228,66,0.30);--week-type-off:rgba(86,180,233,0.18);--week-type-sick:rgba(213,94,0,0.22);--max-width:800px;--nav-height:60px}[data-theme=dark]{--color-bg:#0d1117;--color-text:#e6edf3;--color-text-muted:#8b949e;--color-border:#30363d;--color-link:#58a6ff;--color-link-hover:#79c0ff;--color-nav-bg:#161b22;--color-placeholder-bg:#21262d;--color-card-bg:#161b22;--color-heatmap-empty:#161b22;--heatmap-score-0:#161b22;--heatmap-score-1:#0e4429;--heatmap-score-2:#006d32;--heatmap-score-3:#26a641;--heatmap-score-4:#39d353;--week-type-light:rgba(240,228,66,0.40);--week-type-off:rgba(86,180,233,0.28);--week-type-sick:rgba(213,94,0,0.32)}@media 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