{"name":"notebooklm-homepage-analysis","version":"1.0.0","description":"External, reproducible analysis of the public NotebookLM/Gemini Notebook homepage; not an official Google design system.","source":"https://notebooklm.google/","observedAt":"2026-08-02","colors":{"canvas":"#FFFFFF","surface":"#F6F8FC","surfaceRaised":"#FFFFFF","ink":"#202124","muted":"#5F6368","brand":"#1A73E8","source":"#34A853","audio":"#A142F4","warning":"#F9AB00","border":"#DADCE0","error":"#D93025"},"typography":{"fontFamily":"system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, sans-serif","codeFamily":"ui-monospace, SFMono-Regular, Menlo, Consolas, monospace","hero":{"fontSize":"52px","fontWeight":500,"lineHeight":1.08},"section":{"fontSize":"32px","fontWeight":500,"lineHeight":1.2},"card":{"fontSize":"20px","fontWeight":600,"lineHeight":1.3},"body":{"fontSize":"16px","fontWeight":400,"lineHeight":1.5},"metadata":{"fontSize":"13px","fontWeight":500,"lineHeight":1.4}},"rounded":{"control":"8px","card":"16px","pill":"999px"},"spacing":{"xxs":"4px","xs":"8px","sm":"12px","md":"16px","lg":"24px","xl":"32px","section":"48px","hero":"64px"},"breakpoints":{"mobile":"320px","small":"544px","medium":"768px","large":"1012px","xlarge":"1280px"},"components":{"product-navigation":{"states":["default","hover","focus-visible","menu-open","compact"]},"source-upload":{"states":["empty","drag-over","uploading","success","error","unsupported"]},"insight-card":{"states":["default","loading","citation-visible","error","empty"]},"output-format-card":{"states":["default","generating","ready","failed","downloadable"]},"public-notebook-card":{"states":["default","hover","focus-visible","featured","loading"]},"faq-footer":{"states":["collapsed","expanded","focus-visible","stacked-mobile"]}},"provenance":{"type":"external-analysis","official":false,"references":["https://notebooklm.google/","https://notebooklm.google/audio?hl=es"],"notes":"Dynamic iframe-based product snapshot; direct homepage extraction was limited."}}