/* Publication navigation and research components; existing theme tokens remain authoritative. */
:root{--feature-gap:1.5rem;--menu-width:23rem}
.reader-header{height:var(--header);min-height:var(--header);gap:.65rem;padding-block:0}
.reader-context{display:none}.reader-brand{white-space:nowrap;margin-right:auto}
.reader-actions{display:flex;align-items:center;gap:.55rem}
.reader-header details{position:relative;margin:0}
.reader-header summary,.page-tools summary{font:600 .8rem/1.4 var(--ui);padding:.65rem .55rem;list-style:none;min-height:40px;display:flex;align-items:center}
.reader-header summary::-webkit-details-marker,.page-tools summary::-webkit-details-marker{display:none}
.reader-header summary:after,.page-tools summary:after{content:"⌄";margin-left:.45rem;color:var(--gold)}
.reader-header .menu-panel{position:absolute;top:calc(100% + .35rem);right:0;z-index:60;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);padding:var(--s4);width:min(var(--menu-width),calc(100vw - 1.5rem));max-height:calc(100dvh - 5rem);overflow:auto}
.explore-links{display:grid;grid-template-columns:1fr 1fr;gap:.5rem 1rem}
.explore-links a{display:block;text-decoration:none;font:.8rem/1.55 var(--ui);padding:.4rem 0}
.settings-menu .menu-panel{width:17rem}.settings-menu label{display:block;font:.75rem/1.7 var(--ui);margin-bottom:1rem}.settings-menu select{display:block;width:100%;margin-top:.3rem}
.header-shortcut{font:600 .8rem var(--ui);text-decoration:none;color:var(--muted)}
.page-tools{display:flex;justify-content:flex-end;margin:0 0 .6rem;position:relative}
.page-tools details{position:relative}.page-tools .tools-panel{position:absolute;right:0;z-index:10;display:grid;gap:.4rem;width:12rem;padding:.7rem;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--feature-gap)}
.feature-card{border:1px solid var(--line2);background:var(--panel);min-width:0;padding-bottom:1rem}
.feature-card img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-card h3{font-size:1.25rem;margin:1rem 1rem .6rem}
.feature-card p,.feature-card .feature-meta{margin:0 1rem .8rem;font-size:.93rem;line-height:1.65}
.feature-card .feature-meta{font:.72rem/1.7 var(--ui);color:var(--muted)}
.feature-card a{text-decoration:none}.feature-card h3 a:hover{text-decoration:underline}
.opening-photo{margin:0 0 var(--s5)}.opening-photo img{display:block;width:100%;max-height:28rem;object-fit:cover;aspect-ratio:2.4}
.opening-photo figcaption{font:.75rem/1.75 var(--ui);color:var(--muted);padding:.7rem 0;border-bottom:1px solid var(--line)}
.hub-paths{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;margin:1.2rem 0 2rem;padding:1rem 0;border-block:1px solid var(--line2);font:.8rem/1.7 var(--ui)}
.factual-panel{border:1px solid var(--line);border-top:2px solid var(--gold);padding:1.2rem;margin:1.5rem 0;background:var(--panel-2)}
.factual-panel h2{font-size:1.15rem;border:0;padding:0;margin:0 0 .8rem}.factual-panel dl{margin:0;font:.8rem/1.7 var(--ui);display:grid;grid-template-columns:minmax(6rem,1fr) 2fr;gap:.5rem 1rem}
.factual-panel dt{font-weight:650}.factual-panel dd{margin:0}
.category-links{font:.8rem/1.8 var(--ui);padding:1rem 0;border-top:1px solid var(--line);margin-top:2rem}.category-links a{display:inline-block;margin:.15rem .9rem .15rem 0}
.research-filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin:1.5rem 0}
.research-filters label{font:.8rem/1.7 var(--ui)}.research-filters input,.research-filters select{display:block;width:100%;max-width:100%}.research-filters .query-field{grid-column:1/-1}
.research-results{list-style:none;padding:0}.research-results li{padding:1.1rem 0;border-top:1px solid var(--line2)}
.research-results h3{margin:0 0 .5rem;font-size:1.2rem}.research-results p{margin:0 0 .5rem;font-size:.95rem}
.research-results small{font:.75rem/1.6 var(--ui);color:var(--muted)}
@media(min-width:1440px){:root{--rail:17rem}.toc-list a{font-size:.8rem;line-height:1.65}.toc-list .level-3 a{font-size:.75rem;padding-left:1.3rem}}
@media(max-width:1150px){.header-shortcut{display:none}}
@media(max-width:600px){.reader-header{padding-inline:.6rem;gap:.3rem}.reader-actions{gap:.15rem}.reader-brand{font-size:.78rem}.reader-header summary{font-size:.73rem;padding-inline:.4rem}.reader-header button{font-size:.73rem;padding-inline:.5rem}.feature-grid{grid-template-columns:1fr}.research-filters{grid-template-columns:1fr 1fr}.factual-panel dl{grid-template-columns:1fr}.opening-photo img{aspect-ratio:1.5}.reader-header .menu-panel{position:fixed;top:calc(var(--header) + .3rem);right:.6rem}}
@media print{.reader-header,.page-tools,.hub-paths,.research-filters{display:none!important}.feature-card{break-inside:avoid}.factual-panel{background:white}.feature-card img{max-height:10rem}}