.reading-spine{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:40px 0 68px}.reading-spine a{padding:22px 15px;font-size:14px}.reading-spine b{display:block;color:var(--teal);font-size:12px;margin-bottom:10px}.reading-spine span{display:block;color:var(--muted);font-size:12px;margin-top:8px}.structure-block{scroll-margin-top:32px;margin:64px 0}.structure-heading{max-width:850px;margin:0 0 30px}.structure-heading h3{font-size:32px;line-height:1.2;font-weight:500;margin:12px 0 18px}.structure-heading p{font-size:17px;line-height:1.8}.definition-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:54px;margin:0}.definition-grid>div{border-top:1px solid var(--line);padding:23px 0;scroll-margin-top:30px}.definition-grid dt{font-size:18px;font-weight:550;margin-bottom:10px}.definition-grid dd{margin:0;color:var(--muted);font-size:15px;line-height:1.8;max-width:62ch}.structural-table table{min-width:780px;table-layout:fixed;width:100%}.structural-table th:first-child{width:21%}.structural-table td{font-size:14px;line-height:1.8;overflow-wrap:anywhere}.structural-table tbody th{font-size:15px;font-weight:550;text-transform:none;letter-spacing:0;vertical-align:top}.structural-table{margin:30px 0 40px}@media(max-width:760px){.reading-spine{grid-template-columns:1fr 1fr}.definition-grid{grid-template-columns:1fr}.structure-heading h3{font-size:27px}}@media print{.reading-spine{display:none}.definition-grid{column-gap:24px}.definition-grid dd{font-size:10px}.structural-table table{min-width:0}.structural-table td,.structural-table tbody th{font-size:9px}}