.apo-toc{margin:1.5em 0;padding:1em 1.2em;border:1px solid #d8d5ca;background:#f8f5eb}.apo-toc strong{display:block;margin-bottom:.6em}.apo-toc ol{margin:.4em 0 .2em 1.5em}.apo-post-nav{display:grid;grid-template-columns:1fr 1fr;gap:1em;margin:2em 0;padding-top:1em;border-top:1px solid #d8d5ca}.apo-post-nav a:last-child{text-align:right}
.apo-toc-group{margin:.9em 0}.apo-toc-group>b{display:block;margin-bottom:.35em}
.apo-shelf-page{max-width:780px;margin:0 auto;padding:clamp(2rem,6vw,5rem) 1.25rem}.apo-shelf-page h1{margin:0 0 2rem}.apo-shelf-tree{list-style:none;margin:.7rem 0;padding-left:1.25rem}.apo-shelf-page>.apo-shelf-tree{padding-left:0}.apo-shelf-node>span{display:block;margin:1rem 0 .45rem;font-weight:600}.apo-shelf-post{margin:.45rem 0}.apo-shelf-post a{text-decoration-thickness:1px;text-underline-offset:.22em}.apo-shelf-empty{opacity:.72}