#archive-form{display:grid;gap:12px;max-width:360px;margin:24px 0}input,select{padding:12px;font:inherit;border:1px solid var(--line);border-radius:5px;background:var(--cream)}#lesson-board{display:grid;grid-template-columns:28px repeat(5,42px);gap:2px;margin:24px 0}#lesson-board span{display:grid;place-items:center;min-height:32px}#lesson-board button{width:42px;height:42px;border:1px solid var(--line);background:var(--cream);color:var(--muted);font-size:25px}#lesson-board button.filled{background:var(--ink)}#lesson-board button.target{outline:3px solid var(--orange);outline-offset:-3px}#lesson-explanation{min-height:100px}.info-page header{gap:16px;flex-wrap:wrap}.info-page nav{font-size:14px}