:root{--bg:#faf7ef;--surface:#fffefb;--ink:#253d35;--muted:#5c6d64;--primary:#28664f;--primary-strong:#1b4e3b;--border:#e4e7dc;--success:#28664f;--warning:#775122;--gold:#db9c2f;--shadow:0 14px 36px #334b3710;--r-sm:12px;--r-md:18px;--r-lg:26px;--r-xl:34px;--max:1100px;--lesson:850px}