[data-skin=bluesky]{--skin-bg:#ffffff;--skin-surface:#ffffff;--skin-surface-2:#f1f3f5;--skin-border:#d4dbe2;--skin-text:#0b0f14;--skin-muted:#5b7085;--skin-accent:#0a7aff;--skin-accent-text:#ffffff;--skin-ring:rgba(10,122,255,0.3);--skin-radius:12px;--skin-font:Inter,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,ui-sans-serif,sans-serif;--skin-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;--bs-like:#ec4899;--bs-green:#20bc07;--bs-soft:#e9f3ff}[data-skin=bluesky] .lesson-prose h2{letter-spacing:-.015em}body:has([data-skin=bluesky]){background:#ffffff;color-scheme:light}