.lesson-goal{border-left:4px solid var(--root);margin-bottom:24px}.lesson-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.lesson-bar{min-width:0}.lesson-bar h3{font-size:19px}.lesson-beats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}.lesson-beats button{padding:10px 2px;min-height:80px}.lesson-beats small{display:block;font-size:12px;color:var(--muted)}.lesson-beats strong{display:block;font-size:17px}.lesson-beats button[aria-pressed=true]{outline:2px solid var(--root);outline-offset:1px}.lesson-beats button.sounding{background:#34432b;border-color:var(--root)}.lesson-options{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.lesson-options button{min-width:95px}.lesson-options button[aria-pressed=true]{background:#34432b;border-color:var(--root)}.session-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.session-nav a{padding:8px 10px;border:1px solid var(--border);border-radius:8px;text-decoration:none;color:var(--muted);font-size:13px}.session-nav a[aria-current=page]{color:var(--root);border-color:var(--root)}.lesson-editor{margin-bottom:24px}.lesson-meter{width:100%;max-width:180px}.lesson-current{min-height:30px;font-weight:700;color:var(--root)}@media(max-width:1000px){.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.lesson-grid{grid-template-columns:1fr}.guide-choices button{min-width:140px}.lesson-options button{min-width:75px}}