/* Narrow cards keep their full topic names and comfortable reading width. */
.topic-card{min-width:0}
.reading-content h2{font-size:30px;line-height:1.3}
.reading-content h3{font-size:24px;line-height:1.3}
.reading-content .learning-item h2{font-size:26px}
.reading-content .day h2{font-size:25px;line-height:1.2}
@media(max-width:480px){
 .topic-grid{grid-template-columns:minmax(0,1fr)}
 .topic-card,.topic-card:first-child,.topic-card:last-child{min-height:0;padding:24px 8px;border-right:0;border-bottom:1px solid #b4bda9;grid-column:auto}
 .topic-card:last-child{border-bottom:0}
 .topic-card h3{font-size:30px;margin-bottom:13px}
 .topic-card p{font-size:13px;max-width:310px}
 .topic-index{margin-bottom:18px}
}