.doc-shell{
  display:grid;gap:0;
  grid-template-columns:16rem minmax(0,1fr);
  padding:clamp(2rem,4vw,3rem) 0;
  align-items:start;
}
@media (max-width:52rem){ .doc-shell{grid-template-columns:1fr} }

.doc-nav{
  position:sticky;top:4.5rem;
  border-right:1px solid var(--rule);
  padding-right:1.5rem;
  max-height:calc(100vh - 6rem);
  overflow-y:auto;
  display:flex;flex-direction:column;gap:1.25rem;
}
@media (max-width:52rem){
  .doc-nav{position:static;border-right:0;border-bottom:1px solid var(--rule);
    padding:0 0 1.5rem;margin-bottom:1.5rem;max-height:none}
}
.doc-nav-home{
  font-family:"IBM Plex Sans Condensed",sans-serif;font-weight:700;
  text-decoration:none;color:var(--ink);font-size:1.05rem;
}
.doc-nav-group{display:flex;flex-direction:column;gap:.3rem}
.doc-nav-head{
  font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-3);
}
.doc-nav-group ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.1rem}
.doc-nav-group a{
  display:block;padding:.3rem .5rem;border-radius:2px;text-decoration:none;
  color:var(--ink-2);font-size:.88rem;
}
.doc-nav-group a:hover{background:var(--surface-2);color:var(--ink)}
.doc-nav-group a[aria-current="page"]{background:var(--steel);color:#fff}

.doc-content{padding-left:clamp(1.25rem,3vw,2.5rem);min-width:0;max-width:60rem}
.doc-content h1{font-size:var(--step-3);margin-bottom:1.5rem}
.doc-content h2{font-size:var(--step-1);margin:2rem 0 .75rem}
.doc-content h3{font-size:1.1rem;margin:1.5rem 0 .5rem}
.doc-content p{color:var(--ink-2);line-height:1.7;margin:0 0 1rem}
.doc-content ul,.doc-content ol{color:var(--ink-2);line-height:1.7;margin:0 0 1rem;padding-left:1.5rem}
.doc-content li{margin-bottom:.25rem}
.doc-content a{color:var(--steel);text-decoration:underline}
:root[data-theme="dark"] .doc-content a{color:var(--steel)}
.doc-content img{
  max-width:100%;border:1px solid var(--rule);border-radius:3px;box-shadow:var(--shadow);
  margin:1rem 0;
}
.doc-content code{
  font-family:"IBM Plex Mono",monospace;font-size:.88em;
  background:var(--surface-2);padding:.1em .35em;border-radius:2px;
}
.doc-content pre{
  background:var(--surface-2);border:1px solid var(--rule);border-radius:3px;
  padding:1rem;overflow-x:auto;margin:0 0 1rem;
}
.doc-content pre code{background:none;padding:0}
.doc-content table{border-collapse:collapse;margin:0 0 1rem;width:100%}
.doc-content th,.doc-content td{border:1px solid var(--rule);padding:.5rem .75rem;text-align:left;font-size:.9rem}
.doc-content th{background:var(--surface-2)}
.doc-content blockquote{
  border-left:3px solid var(--rule-strong);margin:0 0 1rem;padding:.25rem 0 .25rem 1rem;
  color:var(--ink-3);
}
.doc-content hr{border:0;border-top:1px solid var(--rule);margin:2rem 0}

.doc-pager{display:flex;justify-content:space-between;gap:1rem;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--rule)}
.doc-pager-link{text-decoration:none;color:var(--ink-2);font-size:.9rem;max-width:45%}
.doc-pager-link:hover{color:var(--accent)}
.doc-pager-link.next{text-align:right;margin-left:auto}