[data-skin=whatsapp]{--skin-bg:#efeae2;--skin-surface:#ffffff;--skin-surface-2:#f0f2f5;--skin-border:#d1d7db;--skin-text:#111b21;--skin-muted:#667781;--skin-accent:#008069;--skin-accent-text:#ffffff;--skin-ring:rgba(0,128,105,0.35);--skin-radius:8px;--skin-font:"Segoe UI","Helvetica Neue",Helvetica,ui-sans-serif,system-ui,sans-serif;--skin-mono:"SF Mono",ui-monospace,Menlo,Consolas,monospace;--wa-band:#00a884;--wa-bubble-out:#d9fdd3;--wa-tick:#53bdeb;--wa-notice:#ffeecd;--wa-notice-text:#54656f;--wa-unread:#25d366}[data-skin=whatsapp] .wa-wallpaper{background-color:#efeae2;background-image:radial-gradient(circle at 20px 20px,rgba(0,0,0,.035) 2px,transparent 2.5px),radial-gradient(circle at 60px 50px,rgba(0,0,0,.03) 1.5px,transparent 2px),radial-gradient(circle at 40px 80px,rgba(0,0,0,.025) 3px,transparent 3.5px);background-size:80px 100px}[data-skin=whatsapp] .lesson-prose h2{display:table;margin-inline:auto;max-width:92%;text-align:center;background:var(--skin-surface-2);border-radius:8px;padding:.45rem .9rem;font-size:1.15rem;box-shadow:0 1px .5px rgba(11,20,26,.13)}body:has([data-skin=whatsapp]){background:#efeae2}