btn-outline + btn-active read too similarly to tell apart at a glance
in dark mode. Now: active buttons are solid-colored, matching the
badge they control (warning for Format, info for Scope, same colors
already used on the event cards), and inactive buttons are a dimmed
outline. Color alone now tells you what a button does; fill vs. outline
tells you whether it's on.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SBzcNkW7JcYipnAX6HfgmK