:root{--fw-color-ink:#0b0f14;--fw-color-paper:#fff;--fw-color-muted:#6b7280;--fw-color-border:#e5e7eb;--fw-color-surface:#f9fafb;--fw-font-sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--fw-font-mono:ui-monospace, "SF Mono", "Cascadia Code", monospace;--fw-radius-sm:6px;--fw-radius-md:10px;--fw-radius-lg:16px;--fw-space-1:4px;--fw-space-2:8px;--fw-space-3:12px;--fw-space-4:16px;--fw-space-5:24px;--fw-space-6:32px;--fw-space-7:48px;--fw-space-8:64px}