/* The Library: one header row (title · search · kind), a grid of whole-card links, and the entry page (the text in a sheet
   with Copy in its bar, the letter and the video beside it, related entries under it). Paper, Ink, Sage; no hover
   underlines: a color change or a 2px lift. Also styles the workbook card and the giveaway footer inside a letter. */
.library,.library-entry{font-family:var(--ic-sans);padding:clamp(28px,4vw,52px) 0 clamp(56px,7vw,96px)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header row: the title, the search taking the width that's left, the kind switch. */
.library-head{display:flex;align-items:center;gap:16px 28px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid var(--public-line)}
body[data-public-layout] .library-head h1{flex:0 0 auto;margin:0;font:370 clamp(40px,5vw,64px)/.95 var(--ic-serif);letter-spacing:-.04em;color:var(--ic-night)}
.library-search{flex:1 1 300px;min-width:220px;max-width:560px;margin-left:auto}
.library-kinds{display:flex;gap:2px;flex:0 0 auto;padding:3px;border:1px solid var(--public-line);border-radius:999px;background:#fffefa}
.library-kinds a{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 14px;border-radius:999px;color:var(--public-muted);font:500 13.5px/1 var(--ic-sans);text-decoration:none;transition:background-color .15s,color .15s}
.library-kinds a span{font-size:12px;color:#8a8d86;font-variant-numeric:tabular-nums}
.library-kinds a:hover{color:var(--ic-night);background:var(--ic-mist)}
.library-kinds a[aria-current]{color:#fff;background:var(--ic-night)}
.library-kinds a[aria-current] span{color:#c9cfc8}

/* The grid: as many cards as fit, each one whole link. */
.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:20px;margin-top:28px}
.library-card{position:relative;display:flex;flex-direction:column;gap:10px;min-width:0;padding:22px 24px 20px;border:1px solid var(--public-line);border-radius:16px;background:#fffefa;color:var(--public-ink);text-decoration:none;transition:transform .18s cubic-bezier(.2,0,0,1),border-color .18s,box-shadow .18s}
.library-card:hover,.library-card:focus-visible{transform:translateY(-2px);border-color:#c5cdc2;box-shadow:0 1px 2px #1730240d,0 16px 32px -20px #17302440}
.library-card-row{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0;font:500 12.5px/1.3 var(--ic-sans);color:var(--public-muted);font-variant-numeric:tabular-nums}
body[data-public-layout] .library-card :is(h2,h3,h4){margin:2px 0 0;font:400 23px/1.18 var(--ic-serif);letter-spacing:-.02em;color:var(--ic-night);text-wrap:balance}
.library-card p{margin:0;font:14.5px/1.5 var(--ic-sans);color:var(--public-muted);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.library-card-peek{margin:4px 0 0;padding:12px 14px;border-radius:10px;background:var(--ic-mist);color:#4b524c;font:12.5px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap;overflow:hidden;max-height:7.4em;-webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent)}
.library-card-foot{margin-top:auto;padding-top:8px}
.library-from{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.library-open{flex-shrink:0;color:var(--ic-sage);font:600 13px/1.3 var(--ic-sans);transition:color .15s,transform .18s cubic-bezier(.2,0,0,1)}
.library-open span{display:inline-block;transition:transform .18s cubic-bezier(.2,0,0,1)}
:is(.library-card,.library-source-card,.library-video):is(:hover,:focus-visible) .library-open{color:var(--ic-night)}
:is(.library-card,.library-source-card,.library-video):is(:hover,:focus-visible) .library-open span{transform:translateX(3px)}
.library-kind{display:inline-flex;align-items:center;min-height:22px;padding:0 9px;border-radius:999px;background:#e7eee5;color:#3a4f42;font:600 11.5px/1 var(--ic-sans);letter-spacing:.02em;white-space:nowrap}
.library-kind[data-kind="skill"]{background:#efe9da;color:#6d5a2a}
.library-kind[data-kind="system"]{background:#e5e8ef;color:#3d4a66}
.library-empty{margin:40px 0;font:19px/1.6 var(--ic-serif);color:var(--public-muted)}
.library-empty a,.library-section-head a{color:var(--ic-sage);text-decoration:none;font:600 14px/1.4 var(--ic-sans);white-space:nowrap;transition:color .15s}
.library-empty a:hover,.library-section-head a:hover{color:var(--ic-night)}

/* The entry: breadcrumb, then one header row (title and line · byline), then the sheet beside its sources. */
.library-crumb{display:flex;gap:8px;font:500 13px/1.4 var(--ic-sans);color:var(--public-muted)}
.library-crumb a{color:var(--public-muted);text-decoration:none;transition:color .15s}
.library-crumb a:hover{color:var(--ic-sage)}
.library-entry-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px 48px;flex-wrap:wrap;margin-top:18px;padding-bottom:28px;border-bottom:1px solid var(--public-line)}
.library-entry-title{display:flex;flex-direction:column;align-items:flex-start;gap:12px;flex:1 1 520px;min-width:0}
body[data-public-layout] .library-entry-title h1{margin:0;font:370 clamp(36px,4.6vw,60px)/1.02 var(--ic-serif);letter-spacing:-.04em;color:var(--ic-night);text-wrap:balance}
.library-line{margin:0;max-width:60ch;font:400 clamp(18px,1.5vw,21px)/1.45 var(--ic-serif);color:#3a413c;text-wrap:pretty}
.library-entry-meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0;font:500 13px/1.4 var(--ic-sans);color:var(--public-muted);white-space:nowrap}
.library-entry-meta a{color:var(--ic-night);text-decoration:none;font-weight:600;transition:color .15s}
.library-entry-meta a:hover{color:var(--ic-sage)}
.library-entry-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,320px);gap:28px;align-items:start;margin-top:28px}

.library-sheet{min-width:0;border:1px solid var(--public-line);border-radius:16px;background:#fffefa}
.library-sheet-bar{position:sticky;top:0;z-index:1;display:flex;align-items:center;gap:12px;padding:10px 10px 10px 20px;border-bottom:1px solid var(--public-line);border-radius:16px 16px 0 0;background:#fffefaf2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
body[data-public-layout] .library-sheet-bar h2{margin:0;font:600 13.5px/1 var(--ic-sans);letter-spacing:0;color:var(--ic-night)}
.library-sheet-size{font:500 12.5px/1 var(--ic-sans);color:#8a8d86;font-variant-numeric:tabular-nums}
.library-status{margin-left:auto;font:500 12.5px/1.3 var(--ic-sans);color:var(--ic-sage);text-align:right}
.library-copy{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 16px;border:0;border-radius:999px;background:var(--ic-night);color:#fff;font:600 13.5px/1 var(--ic-sans);cursor:pointer;transition:background-color .15s,transform .12s}
.library-copy:hover{background:#2c332e}
.library-copy:active{transform:scale(.97)}
.library-copy[data-copied]{background:var(--ic-sage)}
.library-text{margin:0;padding:clamp(20px,3vw,32px);color:#1f2421;font:14.5px/1.7 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;tab-size:2}
.library-text[data-kind="system"],.library-text[data-kind="skill"]{font:17px/1.7 var(--ic-serif)}
.library-text:focus-visible{outline:2px solid var(--ic-sage);outline-offset:-4px;border-radius:0 0 16px 16px}

.library-source{position:sticky;top:24px;display:grid;gap:16px}
.library-source-card,.library-video{display:flex;flex-direction:column;gap:10px;min-width:0;padding:18px 20px;border:1px solid var(--public-line);border-radius:16px;background:#fffefa;color:var(--public-ink);text-decoration:none;transition:transform .18s cubic-bezier(.2,0,0,1),border-color .18s,box-shadow .18s}
.library-source-card:hover,.library-video:hover,.library-source-card:focus-visible,.library-video:focus-visible{transform:translateY(-2px);border-color:#c5cdc2;box-shadow:0 16px 32px -20px #17302440}
.library-source-card strong{font:400 21px/1.22 var(--ic-serif);letter-spacing:-.015em;color:var(--ic-night);text-wrap:balance}
.library-video{padding:8px 8px 14px}
.library-video .library-open{padding:0 10px}
.library-video-frame{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;border-radius:10px;background:var(--ic-night)}
.library-video-frame img{width:100%;height:100%;object-fit:cover;display:block}
.library-video-play{position:absolute;inset:0;margin:auto;display:grid;place-items:center;width:52px;height:52px;border-radius:999px;background:#ffffffe6;color:var(--ic-night);box-shadow:0 6px 20px #0000003d;transition:transform .18s cubic-bezier(.2,0,0,1)}
.library-video:hover .library-video-play{transform:scale(1.06)}

.library-faq{margin-top:56px;max-width:860px}
body[data-public-layout] :is(.library-faq,.library-related) h2{margin:0;font:400 clamp(26px,2.4vw,32px)/1.15 var(--ic-serif);letter-spacing:-.025em;color:var(--ic-night)}
.library-faq dl{margin:18px 0 0}
.library-faq dl>div{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr);gap:6px 32px;padding:16px 0;border-top:1px solid var(--public-line)}
.library-faq dt{margin:0;font:600 15px/1.5 var(--ic-sans);color:var(--ic-night)}
.library-faq dd{margin:0;font:15px/1.6 var(--ic-sans);color:var(--public-muted)}
.library-related{margin-top:56px}
.library-section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.library-related .library-grid{margin-top:20px}

/* Inside a letter: the giveaway block's footer row names it and links its Library page. */
.article-giveaway{margin:1.6em 0}
.article-giveaway>pre{margin:0!important;border-radius:14px 14px 0 0!important}
.article-giveaway figcaption{display:flex;align-items:center;gap:10px;min-width:0;padding:10px 12px 10px 16px;border:1px solid var(--public-line);border-top:0;border-radius:0 0 14px 14px;background:#fffefa;font:500 13px/1.3 var(--ic-sans);color:var(--public-muted)}
.article-giveaway-title{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ic-night);font-weight:600}
body[data-public-layout] .reading .article-giveaway-link{margin-left:auto;flex-shrink:0;color:var(--ic-sage);font:600 13px/1.3 var(--ic-sans);text-decoration:none}
body[data-public-layout] .reading .article-giveaway-link:hover{color:var(--ic-night)}

@media(max-width:960px){.library-entry-body{grid-template-columns:minmax(0,1fr)}.library-source{position:static;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}}
@media(max-width:720px){.library,.library-entry{padding-top:20px}.library-head{gap:14px;padding-bottom:18px}.library-search{flex-basis:100%;max-width:none;margin-left:0}.library-kinds{width:100%}.library-kinds a{flex:1;justify-content:center;padding:0 8px}.library-grid{gap:14px;margin-top:20px}.library-card{padding:18px 18px 16px}.library-entry-head{padding-bottom:20px}.library-faq dl>div{grid-template-columns:1fr;gap:4px}.library-sheet-bar{padding-left:16px}.library-sheet-size{display:none}}
@media(max-width:400px){.library-kinds a span{display:none}}
@media(prefers-reduced-motion:reduce){.library-card,.library-source-card,.library-video,.library-open span,.library-video-play{transition:none}.library-card:hover,.library-source-card:hover,.library-video:hover{transform:none}}