article{max-width:85ch;margin:0 auto}.book-content{line-height:var(--line-height);color:var(--primary-text);margin:0 auto;font-size:1.2rem}.book-content h1{font-size:2.75rem;margin:2rem 0 1rem;font-weight:700;line-height:1.2}.book-content h2{font-size:2rem;margin:1.8rem 0 1rem;font-weight:600;line-height:1.3}.book-content h3{font-size:1.33rem;margin:1.5rem 0 1rem;font-weight:500;line-height:1.4}.book-content h4{font-size:1.2rem;margin:1.3rem 0 1rem;font-weight:500;line-height:1.4}.book-content p{margin:calc(1em + 1ex) 0;line-height:calc(1em + 1ex)}.book-content a{color:var(--accent-color);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s ease}.book-content a:hover{border-bottom-color:currentColor}.book-content blockquote{border-left:4px solid var(--blockquote-border);margin:1.5rem 0;padding:0 1.5rem;font-style:italic;color:var(--secondary-text);background-color:rgba(0,0,0,.03)}.book-content blockquote p{margin:0 0 .75rem}.book-content img{height:auto;margin:2rem 0;border-radius:4px}.book-content img,.book-content img+em{max-width:min(100%,580px);display:block}.book-content img+em{font-size:.95rem;color:var(--secondary-text);margin-top:-2em}.lead{font-size:1.3rem;color:var(--primary-text);line-height:1.7;margin-bottom:2rem}.dropcap:first-letter{float:left;font-size:4.5rem;line-height:.8;margin:.15em .5rem 0 0;font-weight:700;color:var(--primary-text)}.pull-quote{font-size:1.4rem;line-height:1.5;text-align:center;margin:2.5rem 0;padding:2rem;color:var(--secondary-text);border-top:1px solid var(--blockquote-border);border-bottom:1px solid var(--blockquote-border)}.book-content ol,.book-content ul{margin:1.5rem 0;padding-left:2rem}.book-content li{margin-bottom:.75rem}@media(max-width:768px){.book-content{font-size:1rem}.book-content h1{font-size:2rem}.book-content h2{font-size:1.75rem}.lead{font-size:1.1rem}}