.library-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.shelf-card{position:relative;display:flex;flex-direction:column;overflow:hidden;border-radius:20px;min-width:0;transition:transform .3s,box-shadow .3s}.shelf-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px #50637f20}.shelf-art{position:relative;height:165px;overflow:hidden;background:linear-gradient(135deg,#dce6ee99,#eeeaf6aa);border-bottom:1px solid #ffffff80}.shelf-art img{display:block;width:100%;height:100%;object-fit:cover;filter:saturate(.7);transition:transform .6s}.shelf-card:hover .shelf-art img{transform:scale(1.035)}.shelf-icon{height:100%;display:grid;place-items:center;color:#8192ad}.shelf-icon svg{width:70px;height:70px;stroke-width:.7}.shelf-index{position:absolute;left:21px;top:17px;font-size:10px;letter-spacing:.14em;color:#596c87}.shelf-copy{padding:24px 25px;display:flex;flex-direction:column;flex:1}.shelf-copy h2{font-size:23px;font-weight:500;margin:0 0 11px;letter-spacing:.035em}.shelf-copy p{font-size:12px;line-height:1.9;margin:0 0 25px;color:var(--muted);flex:1}.shelf-bottom{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#687c98}.shelf-card:only-child{grid-column:1/-1;display:grid;grid-template-columns:.8fr 1.2fr;min-height:290px}.shelf-card:only-child .shelf-art{height:100%;min-height:290px;border-bottom:0;border-right:1px solid #fff8}.shelf-card:only-child .shelf-copy{padding:42px 35px;justify-content:center}.shelf-card:only-child .shelf-copy p{flex:none;margin-bottom:35px}.library-empty{min-height:360px;position:relative;overflow:hidden}.empty-book{position:relative;width:100px;height:100px;display:grid;place-items:center;margin-bottom:18px;color:#8296b1}.empty-book::before{content:"";position:absolute;inset:0;border:1px solid #fff;border-radius:50%;background:#f5f9ff77}.empty-book svg{position:relative;width:49px;height:49px;stroke-width:.9}.library-empty h2{font-size:24px}.library-empty p{max-width:400px}.empty-subline{font-size:10px;color:#8a99ad;letter-spacing:.12em;margin-top:2px}.library-empty .action-link{margin-top:6px}
.document-list{display:grid;gap:14px}.document-card{display:grid;grid-template-columns:46px minmax(0,1fr) 24px;gap:19px;align-items:start;padding:25px 26px;border-radius:16px;transition:transform .25s,box-shadow .25s}.document-card:hover{transform:translateY(-2px);box-shadow:0 10px 25px #586d8b18}.document-symbol{display:grid;place-items:center;width:43px;height:49px;border:1px solid #ccd7e6;border-radius:9px;background:#f4f8ff7a;color:#8495af}.document-symbol svg{width:22px;height:27px;stroke-width:1}.document-copy{min-width:0}.document-copy h2{font-size:19px;font-weight:500;letter-spacing:.025em;line-height:1.5;margin:0 0 8px}.document-copy p{margin:0 0 15px;font-size:12px;line-height:1.85;color:var(--muted);overflow-wrap:anywhere}.document-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:10px;color:#72849d;margin-bottom:12px}.document-meta i{width:3px;height:3px;background:#9cabbe;border-radius:50%}.document-arrow{align-self:center;color:#7b8faa;font-size:19px}.document-difficulty{border:1px solid #c2d0e0aa;border-radius:5px;padding:2px 6px;background:#f9fbff70;color:#5a7496}.library-hero-note{margin-top:21px;font-size:11px;line-height:1.9;color:var(--muted)}.document-heading h1{font-size:clamp(29px,3vw,39px);letter-spacing:.025em;margin-bottom:16px}.document-heading .document-meta{margin:18px 0 0}.document-heading .tags{margin-top:19px}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 205px;gap:29px;align-items:start}.reader-main{min-width:0}.reader-paper{padding:32px 34px;border-radius:19px}.reader-paper .content-prose{font-size:13px;line-height:2.1;color:#354e68}.reader-cover{margin:0 0 26px}.reader-cover img{display:block;width:100%;height:auto;border-radius:12px;max-height:390px;object-fit:cover;filter:saturate(.86)}.reader-empty{font-size:12px;color:var(--muted);line-height:1.9;margin:0}.reader-aside{position:sticky;top:24px;min-width:0}.reading-label{font-size:10px;color:#7588a2;letter-spacing:.14em;margin:0 0 17px}.toc{display:grid;gap:2px;border-left:1px solid #aebed466;padding-left:14px}.toc a{display:block;padding:6px 0;font-size:11px;line-height:1.65;color:#6c819e;overflow-wrap:anywhere}.toc a[data-level="3"]{padding-left:10px;font-size:10px}.toc a[aria-current="location"]{color:#304d75;font-weight:600}.toc a:hover{color:#304d75}.toc-empty{font-size:11px;line-height:1.8;color:#7f91a7;margin:0}.reader-meta{margin:23px 0 0}.reader-meta .meta-item{padding:15px 0}.reader-meta .meta-item dt{margin-bottom:7px}.reader-meta .meta-item dd{font-size:11px}.reader-paper h2,.reader-paper h3{scroll-margin-top:26px}.download-section{margin-top:26px;border-radius:17px;padding:25px 27px}.download-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:19px}.download-title h2{font-size:16px;letter-spacing:.04em;font-weight:500;margin:0}.download-title>span{font-size:10px;color:#7f91a7}.file-list{display:grid;gap:10px}.file-card{display:grid;grid-template-columns:38px minmax(0,1fr) 22px;gap:13px;align-items:center;padding:15px;background:#f7faff66;border:1px solid #c6d1df77;border-radius:10px;transition:background .2s,border-color .2s}.file-card:hover{background:#ffffffa3;border-color:#a4b7d2}.file-extension{width:36px;min-height:42px;display:grid;place-items:center;font-size:8px;letter-spacing:.03em;border:1px solid #b9c9dd;border-radius:6px;background:#ecf2fc88;color:#526f98}.file-copy{min-width:0}.file-copy strong{display:block;font-size:12px;font-weight:500;line-height:1.6;overflow-wrap:anywhere}.file-copy small{display:block;font-size:10px;color:#7b8ea8;line-height:1.7;margin-top:3px}.file-copy p{font-size:11px;line-height:1.8;color:#6c809b;margin:6px 0 0;overflow-wrap:anywhere}.file-download{font-size:17px;color:#6e85a5}.library-back-row{margin-top:30px;display:flex;justify-content:space-between;gap:20px;padding-top:23px;border-top:1px solid var(--line);color:#5d7799;font-size:11px}.reading-progress{position:fixed;z-index:4;top:0;left:0;height:2px;width:0;background:#6b83a6;pointer-events:none;transition:width .14s linear}.reader-paper .content-prose pre{max-width:100%;overflow:auto;background:#e1e9f3aa;border:1px solid #bacbe150;border-radius:10px;padding:17px 19px;font:11px/1.9 Consolas,monospace;white-space:pre}.reader-paper .content-prose pre code{padding:0;background:transparent}.reader-paper .content-prose table{border-collapse:collapse;width:100%;font-size:12px}.reader-paper .content-prose td,.reader-paper .content-prose th{border:1px solid #bac8db;padding:10px 12px}.reader-paper .content-prose th{background:#e9eff9aa}
@media(max-width:1050px){.reader-layout{grid-template-columns:minmax(0,1fr) 160px;gap:22px}.reader-paper{padding:26px}.download-section{padding:23px}.shelf-card:only-child{grid-template-columns:.8fr 1.2fr}.shelf-card:only-child .shelf-copy{padding:30px}}
@media(max-width:760px){.reader-layout{grid-template-columns:1fr;gap:23px}.reader-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:22px;order:-1;border:1px solid #fff9;border-radius:13px;padding:19px;background:#ffffff40}.reader-meta{margin:0}.reader-meta .meta-item:first-child{padding-top:0}.reading-label{font-size:9px;margin-bottom:10px}.toc a{font-size:10px;padding:4px 0}.reader-paper{padding:25px}.reader-paper .content-prose{font-size:12px}.reader-cover{margin-bottom:21px}.document-heading h1{font-size:29px}.document-card{padding:22px 21px;gap:13px;grid-template-columns:38px minmax(0,1fr) 16px}.document-symbol{width:36px;height:43px}.document-copy h2{font-size:18px}.document-copy p{font-size:11px}.document-arrow{font-size:16px}.download-section{padding:22px}.shelf-card:only-child{display:block}.shelf-card:only-child .shelf-art{height:175px;min-height:0;border-right:0;border-bottom:1px solid #fff8}.shelf-card:only-child .shelf-copy{padding:25px}.shelf-copy h2{font-size:21px}.shelf-card:only-child .shelf-copy p{margin-bottom:25px}.library-back-row{gap:15px;line-height:1.8}.library-back-row>a:last-child{text-align:right}.library-empty{min-height:365px}.site-nav{gap:16px}}
@media(max-width:560px){.library-categories{grid-template-columns:1fr}.reader-aside{grid-template-columns:1fr;gap:18px}.reader-meta{display:none}.toc{max-height:155px;overflow:auto}.reader-paper{padding:22px}.document-card{grid-template-columns:30px minmax(0,1fr) 13px;padding:20px 17px;gap:11px}.document-symbol{width:29px;height:37px}.document-symbol svg{width:17px;height:23px}.document-copy h2{font-size:17px}.document-meta{gap:7px;font-size:9px}.document-heading h1{font-size:28px}.file-card{padding:13px 11px;gap:10px;grid-template-columns:32px minmax(0,1fr) 18px}.file-extension{width:30px;min-height:38px;font-size:7px}.file-copy strong{font-size:11px}.file-copy small{font-size:9px}.download-section{padding:22px 18px}.download-title h2{font-size:15px}.library-empty h2{font-size:22px}.site-brand{font-size:11px;gap:7px}.site-brand img{width:25px;height:25px}.site-nav{gap:12px;font-size:10px}.shelf-art{height:150px}}
@media(prefers-reduced-motion:reduce){.shelf-card:hover,.document-card:hover,.shelf-card:hover .shelf-art img{transform:none}.reading-progress{transition:none}}
.file-download{font-size:10px;display:grid;gap:4px;text-align:center}.file-download b{font-size:17px;font-weight:400}
@media(max-width:760px){.reader-aside{display:block}.reader-meta{margin-top:20px}}
.file-download{white-space:nowrap}
.file-copy small{overflow-wrap:anywhere}
@media(max-width:560px){.file-card{grid-template-columns:32px minmax(0,1fr) 26px}}
/* Reading navigation has its own surface, separate from the article. */
.reader-aside{padding:22px 19px;border-radius:16px}.reading-label{display:block}.file-download{font-size:10px;display:grid;gap:4px;text-align:center}.file-download b{font-size:17px;font-weight:400}