:root{--green:#b32624}.lesson-heading h1{font-size:clamp(26px,3vw,35px)}.lesson-heading .eyebrow{color:#b32624;font-size:13px}.visual img{height:280px;width:100%;object-fit:contain}.animation-controls{flex-wrap:wrap}.animation-controls .btn,.enlarge{min-height:44px;font-size:16px}.question-image{height:180px;object-fit:contain}.frame-number{min-width:64px}.note-content{gap:18px}.resources{margin-top:16px}@media(max-width:700px){.visual img{height:clamp(170px,30dvh,240px)}.question-image{height:160px}.note-content h2{font-size:24px}}