:root{--sai-radius-sm: 4px;--sai-radius: 6px;--sai-radius-lg: 8px;--sai-gap-xs: 4px;--sai-gap-sm: 8px;--sai-gap: 12px;--sai-gap-lg: 16px;--sai-gap-xl: 24px;--sai-pad: 14px;--sai-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;--sai-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;--sai-text-xs: 11px;--sai-text-sm: 12px;--sai-text: 13px;--sai-text-lg: 14px;--sai-transition: .12s ease-out}.app-root.light,.light .sheets-ai-overlay{--sai-bg: #ffffff;--sai-bg-soft: #f7f7f9;--sai-bg-hover: #eef0f3;--sai-bg-active: #e4e7ec;--sai-border: #e3e5e8;--sai-border-soft: #eceef1;--sai-fg: #1f2328;--sai-fg-muted: #6b7280;--sai-fg-subtle: #9ca3af;--sai-accent: #0f766e;--sai-accent-hover:#0d655e;--sai-accent-bg: rgba(15, 118, 110, .08);--sai-accent-bg-strong: rgba(15, 118, 110, .16);--sai-danger: #b42318;--sai-warn: #b54708;--sai-shadow: 0 8px 24px -12px rgba(15, 23, 42, .12), 0 0 0 1px rgba(15, 23, 42, .04)}.app-root.dark,.dark 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