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.lesson-nav-panel{display:block;position:fixed;z-index:45;top:0;bottom:0;left:0;width:min(22rem,100%);overflow:auto;padding:1.25rem .7rem 2rem;border-radius:0;background:var(--surface);box-shadow:24px 0 50px -28px #000000a6}}.lesson-ask-shade{position:absolute;inset:0;border:0;background:#080710b8;cursor:pointer}.lesson-ask-panel{position:relative;z-index:1;width:min(28rem,100%);padding:1.6rem 1.5rem;border-radius:18px;background:var(--surface);color:var(--ink);box-shadow:0 30px 60px -28px #0000008c}.lesson-ask-panel h2{margin:0 0 .6rem;font:800 1.45rem/1.2 var(--display);letter-spacing:-.02em}.lesson-ask-panel p{margin:0 0 1.25rem;color:var(--muted);line-height:1.55}.lesson-ask-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.7rem}.site footer{padding:4rem 0 2.5rem;background:var(--chrome);border-top:1px solid var(--line)}.foot{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2fr));gap:2rem}@media(max-width:800px){.foot{grid-template-columns:1fr;justify-items:center;text-align:center}.foot .about{display:flex;flex-direction:column;align-items:center}.about p{margin-left:auto;margin-right:auto}.legal{flex-direction:column;align-items:center;text-align:center}}.foot h3{font:700 .95rem/1.2 var(--body);margin:0 0 .9rem}.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}.foot ul a{text-decoration:none;color:var(--muted)}.foot ul a:hover{color:var(--ink)}.about p{color:var(--muted);max-width:36ch;margin:1rem 0 0}.legal{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}.built{display:inline-flex;align-items:center;gap:.5rem;color:var(--ink);font-weight:600;text-decoration:none}.built svg{width:22px;height:22px}.built:hover 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