.excel-class .class-nav{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:36px}.class-nav a{font-size:16px}.class-nav form{margin:0}.text-button{border:0;background:transparent;color:var(--ink);text-decoration:underline;padding:8px;font-size:16px}.excel-password-form{max-width:460px;display:grid;gap:18px}.excel-password-form input[type=password]{background:var(--ground);border:1px solid var(--muted);border-radius:0;color:var(--ink);padding:14px;min-height:50px}.excel-password-form .note{font-size:14px}.excel-password-form button{justify-self:start}.class-list{display:grid;gap:20px;margin:36px 0}.class-entry{display:block;text-decoration:none;background:var(--wash);padding:28px}.excel-class .class-entry h2{margin:0 0 16px;font-size:28px}.class-entry span{display:block;margin-top:20px;text-decoration:underline}.class-jumps{display:flex;flex-wrap:wrap;gap:18px 24px;margin:32px 0}.class-agenda{background:var(--ground);padding:24px}.class-agenda p+p{margin-top:16px}.class-agenda strong{display:inline-block;min-width:120px}.excel-class .download-list a{display:flex;flex-direction:column;gap:6px}.download-list span{font-size:16px}.formula-controls{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:36px 0}.formula-controls select{padding:12px;border:1px solid var(--muted);background:var(--paper);color:var(--ink)}.formula-example{margin:28px 0}.formula-example h3{font-size:20px;margin-bottom:12px}.formula-example pre{background:var(--ground);padding:18px;overflow-x:auto;max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere}.formula-example code{font-size:15px;line-height:1.6}.excel-class h1{max-width:24ch}.excel-class .reading{max-width:840px}.excel-course-entry{background:var(--wash);padding:26px;margin:30px 0}.excel-course-entry h2{font-size:27px;margin-bottom:16px}.excel-course-entry .actions{margin-top:20px}@media(max-width:600px){.class-entry{padding:22px}.excel-class .class-entry h2{font-size:25px}.excel-class .class-nav{margin-bottom:24px}.class-agenda{padding:20px}.class-agenda strong{display:block;margin-bottom:4px}.excel-password-form button{width:100%}.excel-class .download-list span{font-size:15px}}