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button{border:0;background:none;color:#5e50d9;font-weight:700;font-size:11px}
@media(max-width:950px){.topbar{gap:35px;padding:0 25px}.layout{grid-template-columns:205px 1fr}.sidebar{padding:25px 14px}.content{padding:35px 30px}.number-art{right:0;opacity:.7}.hero-copy{max-width:430px}.lesson-body{grid-template-columns:1fr}.activity-card{position:static}.hero-card{padding-left:30px}.hero-meta{gap:10px}}
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