A funnel — thousands of products in, one winner out. The green dot is the product that made it through. Never separate the dot from the funnel.
Aubergine anchors the brand (chrome/navigation). Green is the only action colour — buttons, "worth testing", connected. Amber and blue are used sparingly for highlight and links. Everything else is neutral.
The same family Slack uses. Three weights only.
4-point scale. Use these steps for padding and gaps — nothing in between.
Content max-width 1080px, centred. Cards use 18–24px padding and a 12–14px radius.
Line icons only. 1.8px stroke, rounded joins, no fill (except the logo dot). Inherit text colour.