/* Library listing and guide viewer pages. Loaded after site.css. */
.page-head .lede.on-dark{color:var(--text-on-ink);margin-top:20px;max-width:58ch;}

/* Listing */
.library-body{padding-top:clamp(40px,5vw,72px);padding-bottom:clamp(64px,8vw,112px);}
.lgroup{margin-bottom:clamp(40px,5vw,64px);}
.lgroup h2{display:flex;align-items:center;gap:12px;font:600 .78rem/1 var(--font-body);letter-spacing:.2em;text-transform:uppercase;color:var(--blue);margin-bottom:22px;padding-bottom:14px;border-bottom:1px solid var(--silver);}
.lgroup h2 svg{width:18px;height:18px;flex:none;}
.lgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;}
.lcard article{height:100%;display:flex;flex-direction:column;gap:12px;padding:28px 26px 22px;background:var(--paper);border:1px solid var(--line);transition:border-color .2s,box-shadow .2s;}
.lcard article:hover,.lcard article:focus-within{border-color:var(--blue);box-shadow:0 10px 30px -18px rgba(11,37,80,.45);}
.lcard .tag{margin:0;font:600 .68rem/1 var(--font-body);letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted);}
.lcard h3{font-size:1.45rem;line-height:1.15;}
.lcard h3 a{color:var(--ink);text-decoration:none;}
.lcard h3 a:hover{color:var(--blue);}
.lcard p{margin:0;color:var(--text-muted);font-size:.95rem;flex:1;}
.lcard .meta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--line);font-size:.8rem;color:var(--text-muted);}
.lcard .acts{display:flex;gap:16px;}
.lcard .acts a{font-weight:600;color:var(--blue);text-decoration:none;}
.lcard .acts a:hover{text-decoration:underline;}
.lib-cta{color:var(--text-muted);}

/* Guide viewer */
.lib{background:var(--ice-2);}
.lib-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;padding-top:36px;padding-bottom:80px;align-items:start;}
.crumbs{display:flex;align-items:center;gap:8px;margin:0 0 4px;font:600 .7rem/1.3 var(--font-body);letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);}
.crumbs svg{width:14px;height:14px;color:var(--blue);}
.guide-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:26px;}
.guide-head h1{font-size:clamp(1.8rem,1.2vw + 1.3rem,2.5rem);line-height:1.12;margin:8px 0 8px;max-width:26ch;}
.guide-head .summary{margin:0;color:var(--text-muted);max-width:62ch;}
.guide-head .meta{margin:10px 0 0;font-size:.82rem;color:var(--text-muted);}
.actions .btn svg{width:16px;height:16px;}
.viewer{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:22px;}
.viewer .page{position:relative;background:#fff;box-shadow:0 14px 40px -22px rgba(11,37,80,.5);border-radius:2px;overflow:hidden;aspect-ratio:210/297;width:100%;}
.viewer .page canvas{display:block;width:100%;height:100%;}
.viewer .page .pno{position:absolute;right:10px;bottom:8px;font:600 .7rem var(--font-body);color:var(--text-muted);background:rgba(255,255,255,.88);padding:2px 6px;border-radius:2px;}
.viewer .loading{display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:.9rem;}
.viewer-note{max-width:1000px;margin:0 auto;padding:22px;border:1px dashed var(--silver-strong);color:var(--text-muted);background:#fff;}
.viewer-note strong{color:var(--ink);}
.pager{max-width:1000px;margin:24px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.pager a{display:flex;flex-direction:column;gap:2px;padding:14px 16px;border:1px solid var(--line);background:#fff;text-decoration:none;}
.pager a:hover{border-color:var(--blue);}
.pager .dir{font:600 .68rem/1.4 var(--font-body);letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);}
.pager .t{font:600 1.15rem/1.2 var(--font-display);color:var(--blue);}
.pager .next{text-align:right;grid-column:2;}
.pager .prev{grid-column:1;}

.shelf{position:sticky;top:96px;background:#fff;border:1px solid var(--line);padding:22px 18px;max-height:calc(100vh - 120px);overflow:auto;}
.shelf h2{font-size:1.5rem;margin-bottom:4px;}
.shelf > p{margin:0 0 16px;font-size:.85rem;color:var(--text-muted);}
.shelf .group{margin:0 0 16px;}
.shelf .group h3{display:flex;align-items:center;gap:7px;margin:0 0 6px;font:600 .66rem/1.2 var(--font-body);letter-spacing:.16em;text-transform:uppercase;color:var(--text-muted);}
.shelf .group h3 svg{width:13px;height:13px;color:var(--blue);}
.shelf ol{list-style:none;margin:0;padding:0;}
.shelf .group a{display:grid;grid-template-columns:26px 1fr;gap:6px;align-items:baseline;padding:8px 10px;text-decoration:none;font-size:.92rem;line-height:1.35;color:var(--ink);border-left:3px solid transparent;}
.shelf .group a .n{font-size:.74rem;color:var(--text-muted);}
.shelf .group a:hover{background:var(--ice-2);}
.shelf .group a[aria-current="page"]{background:var(--ice-2);border-left-color:var(--blue);font-weight:600;color:var(--blue);}
.shelf .cta{margin:6px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:.85rem;color:var(--text-muted);}

@media (max-width:1060px){
  .lib-layout{grid-template-columns:1fr;}
  .shelf{position:static;max-height:none;}
}
@media (max-width:560px){
  .pager{grid-template-columns:1fr;}
  .pager .next{grid-column:1;}
}